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sparc: leon3: Reimplemented AMBA Plug&Play scanning routines.

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Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
This commit is contained in:
Daniel Hellstrom 2010-01-25 09:54:51 +01:00 committed by Francois Retief
parent 0070109f68
commit 898cc81da3
11 changed files with 2112 additions and 773 deletions
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3
arch/sparc/cpu/leon3/Makefile
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@ -6,4 +6,5 @@
#
extra-y = start.o
obj-y = cpu_init.o serial.o cpu.o ambapp.o interrupts.o prom.o usb_uhci.o
obj-y = cpu_init.o serial.o cpu.o ambapp.o ambapp_low.o ambapp_low_c.o \
interrupts.o prom.o usb_uhci.o

596
arch/sparc/cpu/leon3/ambapp.c
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@ -1,343 +1,315 @@
/* Gaisler AMBA Plug&Play bus scanning. Functions
* ending on _nomem is inteded to be used only during
* initialization, only registers are used (no ram).
/* GRLIB AMBA Plug&Play information scanning, relies on assembler
* routines.
*
* (C) Copyright 2007
* Daniel Hellstrom, Gaisler Research, daniel@gaisler.com
* (C) Copyright 2010, 2015
* Daniel Hellstrom, Cobham Gaisler, daniel@gaisler.com.
*
* SPDX-License-Identifier: GPL-2.0+
*/
/* #define DEBUG */
#include <common.h>
#include <command.h>
#include <ambapp.h>
#include <config.h>
#if defined(CONFIG_CMD_AMBAPP)
extern void ambapp_print_apb(apbctrl_pp_dev * apb,
ambapp_ahbdev * apbmst, int index);
extern void ambapp_print_ahb(ahbctrl_pp_dev * ahb, int index);
extern int ambapp_apb_print;
extern int ambapp_ahb_print;
#endif
static int ambapp_apb_scan(unsigned int vendor, /* Plug&Play Vendor ID */
unsigned int driver, /* Plug&Play Device ID */
ambapp_apbdev * dev, /* Result(s) is placed here */
int index, /* Index of device to start copying Plug&Play
* info into dev
*/
int max_cnt /* Maximal count that dev can hold, if dev
* is NULL function will stop scanning after
* max_cnt devices are found.
*/
)
{
int i, cnt = 0;
unsigned int apbmst_base;
ambapp_ahbdev apbmst;
apbctrl_pp_dev *apb;
if (max_cnt == 0)
return 0;
/* Get AMBA APB Master */
if (ambapp_ahbslv_first(VENDOR_GAISLER, GAISLER_APBMST, &apbmst) != 1) {
return 0;
}
/* Get APB CTRL Plug&Play info area */
apbmst_base = apbmst.address[0] & LEON3_IO_AREA;
apb = (apbctrl_pp_dev *) (apbmst_base | LEON3_CONF_AREA);
for (i = 0; i < LEON3_APB_SLAVES; i++) {
#if defined(CONFIG_CMD_AMBAPP)
if (ambapp_apb_print && amba_vendor(apb->conf)
&& amba_device(apb->conf)) {
ambapp_print_apb(apb, &apbmst, i);
}
#endif
if ((amba_vendor(apb->conf) == vendor) &&
(amba_device(apb->conf) == driver) && ((index < 0)
|| (index-- == 0))) {
/* Convert Plug&Play info into a more readable format */
cnt++;
if (dev) {
dev->irq = amba_irq(apb->conf);
dev->ver = amba_ver(apb->conf);
dev->address =
(apbmst_base |
(((apb->
bar & 0xfff00000) >> 12))) & (((apb->
bar &
0x0000fff0)
<< 4) |
0xfff00000);
dev++;
}
/* found max devices? */
if (cnt >= max_cnt)
return cnt;
}
/* Get next Plug&Play entry */
apb++;
}
return cnt;
}
unsigned int ambapp_apb_next_nomem(register unsigned int vendor, /* Plug&Play Vendor ID */
register unsigned int driver, /* Plug&Play Device ID */
register int index)
{
register int i;
register ahbctrl_pp_dev *apbmst;
register apbctrl_pp_dev *apb;
register unsigned int apbmst_base;
/* APBMST is a AHB Slave */
apbmst = ambapp_ahb_next_nomem(VENDOR_GAISLER, GAISLER_APBMST, 1, 0);
if (!apbmst)
return 0;
apbmst_base = amba_membar_start(apbmst->bars[0]);
if (amba_membar_type(apbmst->bars[0]) == AMBA_TYPE_AHBIO)
apbmst_base = AMBA_TYPE_AHBIO_ADDR(apbmst_base);
apbmst_base &= LEON3_IO_AREA;
/* Find the vendor/driver device on the first APB bus */
apb = (apbctrl_pp_dev *) (apbmst_base | LEON3_CONF_AREA);
for (i = 0; i < LEON3_APB_SLAVES; i++) {
if ((amba_vendor(apb->conf) == vendor) &&
(amba_device(apb->conf) == driver) && ((index < 0)
|| (index-- == 0))) {
/* Convert Plug&Play info info a more readable format */
return (apbmst_base | (((apb->bar & 0xfff00000) >> 12)))
& (((apb->bar & 0x0000fff0) << 4) | 0xfff00000);
}
/* Get next Plug&Play entry */
apb++;
}
return 0;
}
/****************************** APB SLAVES ******************************/
int ambapp_apb_count(unsigned int vendor, unsigned int driver)
{
return ambapp_apb_scan(vendor, driver, NULL, 0, LEON3_APB_SLAVES);
}
int ambapp_apb_first(unsigned int vendor,
unsigned int driver, ambapp_apbdev * dev)
{
return ambapp_apb_scan(vendor, driver, dev, 0, 1);
}
int ambapp_apb_next(unsigned int vendor,
unsigned int driver, ambapp_apbdev * dev, int index)
{
return ambapp_apb_scan(vendor, driver, dev, index, 1);
}
int ambapp_apbs_first(unsigned int vendor,
unsigned int driver, ambapp_apbdev * dev, int max_cnt)
{
return ambapp_apb_scan(vendor, driver, dev, 0, max_cnt);
}
enum {
AHB_SCAN_MASTER = 0,
AHB_SCAN_SLAVE = 1
/************ C INTERFACE OF ASSEMBLER SCAN ROUTINES ************/
struct ambapp_find_apb_info {
/* Address of APB device Plug&Play information */
struct ambapp_pnp_apb *pnp;
/* AHB Bus index of where the APB-Master Bridge device was found */
int ahb_bus_index;
int dec_index;
};
/* Scan AMBA Plug&Play bus for AMBA AHB Masters or AHB Slaves
* for a certain matching Vendor and Device ID.
struct ambapp_find_ahb_info {
/* Address of AHB device Plug&Play information */
struct ambapp_pnp_ahb *pnp;
/* AHB Bus index of where the AHB device was found */
int ahb_bus_index;
int dec_index;
};
extern void ambapp_find_buses(unsigned int ioarea, struct ambapp_bus *abus);
extern int ambapp_find_apb(struct ambapp_bus *abus, unsigned int dev_vend,
int index, struct ambapp_find_apb_info *result);
extern int ambapp_find_ahb(struct ambapp_bus *abus, unsigned int dev_vend,
int index, int type, struct ambapp_find_ahb_info *result);
/************ C ROUTINES USED BY U-BOOT AMBA CORE DRIVERS ************/
struct ambapp_bus ambapp_plb;
void ambapp_bus_init(
unsigned int ioarea,
unsigned int freq,
struct ambapp_bus *abus)
{
int i;
ambapp_find_buses(ioarea, abus);
for (i = 0; i < 6; i++)
if (abus->ioareas[i] == 0)
break;
abus->buses = i;
abus->freq = freq;
}
/* Parse APB PnP Information */
void ambapp_apb_parse(struct ambapp_find_apb_info *info, ambapp_apbdev *dev)
{
struct ambapp_pnp_apb *apb = info->pnp;
unsigned int apbbase = (unsigned int)apb & 0xfff00000;
dev->vendor = amba_vendor(apb->id);
dev->device = amba_device(apb->id);
dev->irq = amba_irq(apb->id);
dev->ver = amba_ver(apb->id);
dev->address = (apbbase | (((apb->iobar & 0xfff00000) >> 12))) &
(((apb->iobar & 0x0000fff0) << 4) | 0xfff00000);
dev->mask = amba_apb_mask(apb->iobar);
dev->ahb_bus_index = info->ahb_bus_index - 1;
}
/* Parse AHB PnP information */
void ambapp_ahb_parse(struct ambapp_find_ahb_info *info, ambapp_ahbdev *dev)
{
struct ambapp_pnp_ahb *ahb = info->pnp;
unsigned int ahbbase = (unsigned int)ahb & 0xfff00000;
int i, type;
unsigned int addr, mask, mbar;
dev->vendor = amba_vendor(ahb->id);
dev->device = amba_device(ahb->id);
dev->irq = amba_irq(ahb->id);
dev->ver = amba_ver(ahb->id);
dev->userdef[0] = ahb->custom[0];
dev->userdef[1] = ahb->custom[1];
dev->userdef[2] = ahb->custom[2];
dev->ahb_bus_index = info->ahb_bus_index - 1;
for (i = 0; i < 4; i++) {
mbar = ahb->mbar[i];
addr = amba_membar_start(mbar);
type = amba_membar_type(mbar);
if (type == AMBA_TYPE_AHBIO) {
addr = amba_ahbio_adr(addr, ahbbase);
mask = (((unsigned int)
(amba_membar_mask((~mbar))<<8)|0xff))+1;
} else {
/* AHB memory area, absolute address */
mask = (~((unsigned int)
(amba_membar_mask(mbar)<<20)))+1;
}
dev->address[i] = addr;
dev->mask[i] = mask;
dev->type[i] = type;
}
}
int ambapp_apb_find(struct ambapp_bus *abus, int vendor, int device,
int index, ambapp_apbdev *dev)
{
unsigned int devid = AMBA_PNP_ID(vendor, device);
int found;
struct ambapp_find_apb_info apbdev;
found = ambapp_find_apb(abus, devid, index, &apbdev);
if (found == 1)
ambapp_apb_parse(&apbdev, dev);
return found;
}
int ambapp_apb_count(struct ambapp_bus *abus, int vendor, int device)
{
unsigned int devid = AMBA_PNP_ID(vendor, device);
int found;
struct ambapp_find_apb_info apbdev;
found = ambapp_find_apb(abus, devid, 63, &apbdev);
if (found == 1)
return 64;
else
return 63 - apbdev.dec_index;
}
int ambapp_ahb_find(struct ambapp_bus *abus, int vendor, int device,
int index, ambapp_ahbdev *dev, int type)
{
int found;
struct ambapp_find_ahb_info ahbdev;
unsigned int devid = AMBA_PNP_ID(vendor, device);
found = ambapp_find_ahb(abus, devid, index, type, &ahbdev);
if (found == 1)
ambapp_ahb_parse(&ahbdev, dev);
return found;
}
int ambapp_ahbmst_find(struct ambapp_bus *abus, int vendor, int device,
int index, ambapp_ahbdev *dev)
{
return ambapp_ahb_find(abus, vendor, device, index, dev, DEV_AHB_MST);
}
int ambapp_ahbslv_find(struct ambapp_bus *abus, int vendor, int device,
int index, ambapp_ahbdev *dev)
{
return ambapp_ahb_find(abus, vendor, device, index, dev, DEV_AHB_SLV);
}
int ambapp_ahb_count(struct ambapp_bus *abus, int vendor, int device, int type)
{
int found;
struct ambapp_find_ahb_info ahbdev;
unsigned int devid = AMBA_PNP_ID(vendor, device);
found = ambapp_find_ahb(abus, devid, 63, type, &ahbdev);
if (found == 1)
return 64;
else
return 63 - ahbdev.dec_index;
}
int ambapp_ahbmst_count(struct ambapp_bus *abus, int vendor, int device)
{
return ambapp_ahb_count(abus, vendor, device, DEV_AHB_MST);
}
int ambapp_ahbslv_count(struct ambapp_bus *abus, int vendor, int device)
{
return ambapp_ahb_count(abus, vendor, device, DEV_AHB_SLV);
}
/* The define CONFIG_SYS_GRLIB_SINGLE_BUS may be defined on GRLIB systems
* where only one AHB Bus is available - no bridges are present. This option
* is available only to reduce the footprint.
*
* Return number of devices found.
*
* Compact edition...
* Defining this on a multi-bus GRLIB system may also work depending on the
* design.
*/
static int ambapp_ahb_scan(unsigned int vendor, /* Plug&Play Vendor ID */
unsigned int driver, /* Plug&Play Device ID */
ambapp_ahbdev * dev, /* Result(s) is placed here */
int index, /* Index of device to start copying Plug&Play
* info into dev
*/
int max_cnt, /* Maximal count that dev can hold, if dev
* is NULL function will stop scanning after
* max_cnt devices are found.
*/
int type /* Selectes what type of devices to scan.
* 0=AHB Masters
* 1=AHB Slaves
*/
)
#ifndef CONFIG_SYS_GRLIB_SINGLE_BUS
/* GAISLER AHB2AHB Version 1 Bridge Definitions */
#define AHB2AHB_V1_FLAG_FFACT 0x0f0 /* Frequency factor against top bus */
#define AHB2AHB_V1_FLAG_FFACT_DIR 0x100 /* Factor direction, 0=down, 1=up */
#define AHB2AHB_V1_FLAG_MBUS 0x00c /* Master bus number mask */
#define AHB2AHB_V1_FLAG_SBUS 0x003 /* Slave bus number mask */
/* Get Parent bus frequency. Note that since we go from a "child" bus
* to a parent bus, the frequency factor direction is inverted.
*/
unsigned int gaisler_ahb2ahb_v1_freq(ambapp_ahbdev *ahb, unsigned int freq)
{
int i, j, cnt = 0, max_pp_devs;
unsigned int addr;
ahbctrl_info *info = (ahbctrl_info *) (LEON3_IO_AREA | LEON3_CONF_AREA);
ahbctrl_pp_dev *ahb;
int dir;
unsigned char ffact;
if (max_cnt == 0)
return 0;
/* Get division/multiple factor */
ffact = (ahb->userdef[0] & AHB2AHB_V1_FLAG_FFACT) >> 4;
if (ffact != 0) {
dir = ahb->userdef[0] & AHB2AHB_V1_FLAG_FFACT_DIR;
if (type == 0) {
max_pp_devs = LEON3_AHB_MASTERS;
ahb = info->masters;
} else {
max_pp_devs = LEON3_AHB_SLAVES;
ahb = info->slaves;
/* Calculate frequency by dividing or
* multiplying system frequency
*/
if (dir)
freq = freq * ffact;
else
freq = freq / ffact;
}
for (i = 0; i < max_pp_devs; i++) {
#if defined(CONFIG_CMD_AMBAPP)
if (ambapp_ahb_print && amba_vendor(ahb->conf) &&
amba_device(ahb->conf)) {
ambapp_print_ahb(ahb, i);
}
return freq;
}
/* AHB2AHB and L2CACHE ver 2 is not supported yet. */
unsigned int gaisler_ahb2ahb_v2_freq(ambapp_ahbdev *ahb, unsigned int freq)
{
panic("gaisler_ahb2ahb_v2_freq: AHB2AHB ver 2 not supported\n");
return -1;
}
#endif
if ((amba_vendor(ahb->conf) == vendor) &&
(amba_device(ahb->conf) == driver) &&
((index < 0) || (index-- == 0))) {
/* Convert Plug&Play info info a more readable format */
cnt++;
if (dev) {
dev->irq = amba_irq(ahb->conf);
dev->ver = amba_ver(ahb->conf);
dev->userdef[0] = ahb->userdef[0];
dev->userdef[1] = ahb->userdef[1];
dev->userdef[2] = ahb->userdef[2];
for (j = 0; j < 4; j++) {
addr = amba_membar_start(ahb->bars[j]);
if (amba_membar_type(ahb->bars[j]) ==
AMBA_TYPE_AHBIO)
addr =
AMBA_TYPE_AHBIO_ADDR(addr);
dev->address[j] = addr;
}
dev++;
}
/* found max devices? */
if (cnt >= max_cnt)
return cnt;
/* Return the frequency of a AHB bus identified by index found
* note that this is not the AHB Bus number.
*/
unsigned int ambapp_bus_freq(struct ambapp_bus *abus, int ahb_bus_index)
{
unsigned int freq = abus->freq;
#ifndef CONFIG_SYS_GRLIB_SINGLE_BUS
unsigned int ioarea, ioarea_parent, bridge_pnp_ofs;
struct ambapp_find_ahb_info ahbinfo;
ambapp_ahbdev ahb;
int parent;
debug("ambapp_bus_freq: get freq on bus %d\n", ahb_bus_index);
while (ahb_bus_index != 0) {
debug(" BUS[0]: 0x%08x\n", abus->ioareas[0]);
debug(" BUS[1]: 0x%08x\n", abus->ioareas[1]);
debug(" BUS[2]: 0x%08x\n", abus->ioareas[2]);
debug(" BUS[3]: 0x%08x\n", abus->ioareas[3]);
debug(" BUS[4]: 0x%08x\n", abus->ioareas[4]);
debug(" BUS[5]: 0x%08x\n", abus->ioareas[5]);
/* Get I/O area of AHB bus */
ioarea = abus->ioareas[ahb_bus_index];
printf(" IOAREA: 0x%08x\n", ioarea);
/* Get parent bus */
parent = (ioarea & 0x7);
if (parent == 0) {
panic("%s: parent=0 indicates no parent! Stopping.\n",
__func__);
return -1;
}
/* Get next Plug&Play entry */
ahb++;
}
return cnt;
}
parent = parent - 1;
bridge_pnp_ofs = ioarea & 0x7e0;
unsigned int ambapp_ahb_get_info(ahbctrl_pp_dev * ahb, int info)
{
register unsigned int ret;
debug(" PARENT: %d\n", parent);
debug(" BRIDGE_OFS: 0x%08x\n", bridge_pnp_ofs);
if (!ahb)
return 0;
/* Get AHB/AHB bridge PnP address */
ioarea_parent = (abus->ioareas[parent] & 0xfff00000) |
AMBA_CONF_AREA | AMBA_AHB_SLAVE_CONF_AREA;
ahbinfo.pnp = (struct ambapp_pnp_ahb *)
(ioarea_parent | bridge_pnp_ofs);
switch (info) {
default:
info = 0;
case 0:
case 1:
case 2:
case 3:
/* Get Address from PnP Info */
ret = amba_membar_start(ahb->bars[info]);
if (amba_membar_type(ahb->bars[info]) == AMBA_TYPE_AHBIO)
ret = AMBA_TYPE_AHBIO_ADDR(ret);
return ret;
}
return 0;
debug(" IOAREA PARENT: 0x%08x\n", ioarea_parent);
debug(" BRIDGE PNP: 0x%p\n", ahbinfo.pnp);
}
/* Parse the AHB information */
ahbinfo.ahb_bus_index = parent;
ambapp_ahb_parse(&ahbinfo, &ahb);
ahbctrl_pp_dev *ambapp_ahb_next_nomem(register unsigned int vendor, /* Plug&Play Vendor ID */
register unsigned int driver, /* Plug&Play Device ID */
register unsigned int opts, /* 1=slave, 0=master */
register int index)
{
register ahbctrl_pp_dev *ahb;
register ahbctrl_info *info =
(ahbctrl_info *) (LEON3_IO_AREA | LEON3_CONF_AREA);
register int i;
register int max_pp_devs;
debug(" BRIDGE ID: VENDOR=%d(0x%x), DEVICE=%d(0x%x)\n",
ahb.vendor, ahb.vendor, ahb.device, ahb.device);
if (opts == 0) {
max_pp_devs = LEON3_AHB_MASTERS;
ahb = info->masters;
} else {
max_pp_devs = LEON3_AHB_SLAVES;
ahb = info->slaves;
}
/* Different bridges may convert frequency differently */
if ((ahb.vendor == VENDOR_GAISLER) &&
((ahb.device == GAISLER_AHB2AHB) ||
(ahb.device == GAISLER_L2CACHE))) {
/* Get new frequency */
if (ahb.ver > 1)
freq = gaisler_ahb2ahb_v2_freq(&ahb, freq);
else
freq = gaisler_ahb2ahb_v1_freq(&ahb, freq);
for (i = 0; i < max_pp_devs; i++) {
if ((amba_vendor(ahb->conf) == vendor) &&
(amba_device(ahb->conf) == driver) &&
((index < 0) || (index-- == 0))) {
/* Convert Plug&Play info info a more readable format */
return ahb;
debug(" NEW FREQ: %dHz\n", freq);
} else {
panic("%s: unsupported AMBA bridge\n", __func__);
return -1;
}
/* Get next Plug&Play entry */
ahb++;
/* Step upwards towards system top bus */
ahb_bus_index = parent;
}
return 0;
}
#endif
/****************************** AHB MASTERS ******************************/
int ambapp_ahbmst_count(unsigned int vendor, unsigned int driver)
{
/* Get number of devices of this vendor&device ID */
return ambapp_ahb_scan(vendor, driver, NULL, 0, LEON3_AHB_MASTERS,
AHB_SCAN_MASTER);
}
debug("ambapp_bus_freq: %dHz\n", freq);
int ambapp_ahbmst_first(unsigned int vendor, unsigned int driver,
ambapp_ahbdev * dev)
{
/* find first device of this */
return ambapp_ahb_scan(vendor, driver, dev, 0, 1, AHB_SCAN_MASTER);
}
int ambapp_ahbmst_next(unsigned int vendor,
unsigned int driver, ambapp_ahbdev * dev, int index)
{
/* find first device of this */
return ambapp_ahb_scan(vendor, driver, dev, index, 1, AHB_SCAN_MASTER);
}
int ambapp_ahbmsts_first(unsigned int vendor,
unsigned int driver, ambapp_ahbdev * dev, int max_cnt)
{
/* find first device of this */
return ambapp_ahb_scan(vendor, driver, dev, 0, max_cnt,
AHB_SCAN_MASTER);
}
/****************************** AHB SLAVES ******************************/
int ambapp_ahbslv_count(unsigned int vendor, unsigned int driver)
{
/* Get number of devices of this vendor&device ID */
return ambapp_ahb_scan(vendor, driver, NULL, 0, LEON3_AHB_SLAVES,
AHB_SCAN_SLAVE);
}
int ambapp_ahbslv_first(unsigned int vendor, unsigned int driver,
ambapp_ahbdev * dev)
{
/* find first device of this */
return ambapp_ahb_scan(vendor, driver, dev, 0, 1, AHB_SCAN_SLAVE);
}
int ambapp_ahbslv_next(unsigned int vendor,
unsigned int driver, ambapp_ahbdev * dev, int index)
{
/* find first device of this */
return ambapp_ahb_scan(vendor, driver, dev, index, 1, AHB_SCAN_SLAVE);
}
int ambapp_ahbslvs_first(unsigned int vendor,
unsigned int driver, ambapp_ahbdev * dev, int max_cnt)
{
/* find first device of this */
return ambapp_ahb_scan(vendor, driver, dev, 0, max_cnt, AHB_SCAN_SLAVE);
return freq;
}

784
arch/sparc/cpu/leon3/ambapp_low.S Normal file
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@ -0,0 +1,784 @@
/* GRLIB AMBA Plug&Play information scanning implemented without
* using memory (stack) and one register window. The code scan
* the PnP info and inserts the AHB bridges/buses into register
* i0-i5.
* The code support
* - up to 6 AHB buses
* - multiple APB buses
* - support for AHB2AHB & L2CACHE bridges
*
* (C) Copyright 2010, 2015
* Daniel Hellstrom, Cobham Gaisler, daniel@gaisler.com.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <ambapp.h>
.seg "text"
.globl _nomem_amba_init
.globl _nomem_ambapp_find_buses
.globl _nomem_find_apb
.globl _nomem_find_ahb
/* Overview
* ========
*
* _nomem_amba_init - Init AMBA bus and calls _nomem_ambapp_find_buses
* _nomem_ambapp_find_buses - Scan AMBA PnP info for AHB buses/bridges and
* place them in i0-i5, see below
* _nomem_find_apb - Find one APB device identified by VENDOR:DEVICE
* ID and an index.
* _nomem_find_ahb - Find one AHB Master or Slave device identified
* by VENDOR:DEVICE ID and an index.
* init_ahb_bridges - Local function. Clears i0-i5
* insert_ahb_bridge - Local function. Insert a new AHB bus into first
* free register in i0-i5. It also checks that the
* bus has not already been added.
* get_ahb_bridge - Local function. Get AHB bus from registers,
* return register iN, where N is defined by o0.
*
* The _nomem_find_apb and _nomem_find_ahb function requires that i0-i5
* are populated with the AHB buses of the system. The registers are
* initialized by _nomem_ambapp_find_buses.
*
* AHB Bus result and requirements of i0-i5
* ========================================
*
* i0: AHB BUS0 IOAREA, no parent bus
* i1: AHB BUS1 IOAREA, parent bus is always i0 (AHB BUS0) and bridge address
* i2: AHB BUS2 IOAREA, 3-bit parent bus number and bridge address
* i3: AHB BUS3 IOAREA, 3-bit parent bus number and bridge address
* i4: AHB BUS4 IOAREA, 3-bit parent bus number and bridge address
* i5: AHB BUS5 IOAREA, 3-bit parent bus number and bridge address
*
* AHB BUS
* -------
* Bits 31-20 (0xfff00000) contain the found bus I/O Area (AHB PnP area).
*
* 3-bit Parent bus
* ----------------
* Bits 2-0 (0x00000007) contain parent bus number. Zero if no parent
* bus, 1 = parent is AHB BUS 0 (i0), 2 = parent is AHB BUS 1 (i1)..
*
* Bridge Address
* --------------
* Bits 10-5 (0x000007e0) contain the index of the Bridge's PnP
* information on the parent. Since all bridges are found in the
* PnP information they all have a PnP entry. Together with the
* parent bus number the PnP entry can be found:
* PnPEntry = (BRIDGE_ADDRESS + (iN & 0xfff00000)) | 0x000ff800
* where N is the parent bus minus one.
*
*/
/* Function initializes the AHB Bridge I/O AREA storage. (Clears i0-i5)
*
* Arguments
* none
*
* Results
* none
*
* Clobbered
* none
*/
init_ahb_bridges:
mov %g0, %i0
mov %g0, %i1
mov %g0, %i2
mov %g0, %i3
mov %g0, %i4
retl
mov %g0, %i5
/* Function returns AHB Bridge I/O AREA for specified bus.
*
* Arguments
* - o0 = bus number
*
* Results
* - o0 = I/O AREA
*
* Clobbered
* none
*/
get_ahb_bridge:
cmp %o0, 1
be,a L1
mov %i0, %o0
cmp %o0, 2
be,a L1
mov %i1, %o0
cmp %o0, 3
be,a L1
mov %i2, %o0
cmp %o0, 4
be,a L1
mov %i3, %o0
cmp %o0, 5
be,a L1
mov %i4, %o0
cmp %o0, 6
be,a L1
mov %i5, %o0
/* o0 > 6: only 6 buses supported */
mov %g0, %o0
L1:
retl
nop
/* Function adds a AHB Bridge I/O AREA to the i0-i5 registers if
* not already added. It stores the bus PnP start information.
*
* Arguments
* - o0 = AHB Bridge I/O area
*
* Results
* none
*
* Clobbered
* o2, o3
*/
insert_ahb_bridge:
/* Check that bridge hasn't already been added */
andn %o0, 0x7ff, %o2
andn %i0, 0x7ff, %o3
cmp %o3, %o2
be L2
andn %i1, 0x7ff, %o3
cmp %o3, %o2
be L2
andn %i2, 0x7ff, %o3
cmp %o3, %o2
be L2
andn %i3, 0x7ff, %o3
cmp %o3, %o2
be L2
andn %i4, 0x7ff, %o3
cmp %o3, %o2
be L2
andn %i5, 0x7ff, %o3
cmp %o3, %o2
be L2
/* Insert into first free posistion */
cmp %i0, %g0
be,a L2
mov %o0, %i0
cmp %i1, %g0
be,a L2
mov %o0, %i1
cmp %i2, %g0
be,a L2
mov %o0, %i2
cmp %i3, %g0
be,a L2
mov %o0, %i3
cmp %i4, %g0
be,a L2
mov %o0, %i4
cmp %i5, %g0
be,a L2
mov %o0, %i5
L2:
retl
nop
/* FUNCTION int _nomem_find_ahb_bus(
* unsigned int bridge,
* int vendor_device,
* int index,
* void **pconf,
* int not_used,
* int option
* )
*
* Scans the AHB Master or Slave area for a matching VENDOR:DEVICE, the
* index is decremented when a matching device is found but index is
* greater than zero. When index is zero and a matching DEVICE:VENDOR
* is found the AHB configuration address and AHB I/O area is returned.
*
* i0-i7,l0,l1,l2,l3,l4,g2,o6 is not available for use.
* o1,o5 Must be left untouched
*
* Results
* - o0 Number of found devices (1 or 0)
* - o2 is decremented for each matching VENDOR:DEVICE found, zero if found
* - o3 Address of the AHB PnP configuration entry (Only valid if o0=1)
*
* Clobbered
* - o3 (Clobbered when no device was found)
* - o4 (Number of Devices left to search)
* - o0 (Bus ID, PnP ID, Device)
*/
_nomem_find_ahb_bus:
/* Get the number of Slaves/Masters.
* Only AHB Bus 0 has 64 AHB Masters/Slaves the
* other AHB buses has 16 slaves and 16 masters.
*/
add %g0, 16, %o4 /* Defaulting to 16 */
andcc %o0, 0x7, %g0 /* 3-bit bus id */
be,a .L_maxloops_detected
add %g0, 64, %o4 /* AHB Bus 0 has 64 AHB Masters/Slaves */
.L_maxloops_detected:
/* Get start address of AHB Slave or AHB Master area depending on what
* we are searching for.
*/
andn %o0, 0x7ff, %o0 /* Remove Bus ID and 5-bit AHB/AHB
* Bridge PnP Address to get I/O Area */
set AMBA_CONF_AREA, %o3
or %o3, %o0, %o3 /* Master area address */
cmp %o5, DEV_AHB_SLV
be,a .L_conf_area_calculated
or %o3, AMBA_AHB_SLAVE_CONF_AREA, %o3 /* Add 0x800 to get to slave area */
.L_conf_area_calculated:
/* Iterate over all AHB device and try to find matching DEVICE:VENDOR
* o1 - VENDOR|DEVICE
* o2 - Index
* o3 - Current AHB Device Configuration address
* o5 - Type (leave untouched)
*
* o4 - Number of AHB device left to process
* o0 - tmp
*/
.L_process_one_conf:
ld [%o3], %o0
andn %o0, 0xfff, %o0
cmp %o0, 0 /* No device if zero */
beq .L_next_conf
cmp %o1, 0 /* If VENDOR:DEVICE==0, consider all matching */
beq .L_process_ahb_dev_found
cmp %o0, %o1 /* Does VENDOR and DEVICE Match? */
bne .L_next_conf
nop
.L_process_ahb_dev_found:
/* Found a Matching VENDOR:DEVICE, index must also match */
cmp %o2, %g0
bne .L_next_conf
dec %o2
/* Index matches also, return happy with o3 set to AHB Conf Address */
mov %g0, %o2
retl
add %g0, 1, %o0
.L_next_conf:
subcc %o4, 1, %o4 /* One device has been processed,
* Are there more devices to process? */
bne .L_process_one_conf
add %o3, AMBA_AHB_CONF_LENGH, %o3 /* Next Configuration entry */
/* No Matching device found */
retl
mov %g0, %o0
/* FUNCTION int _nomem_find_ahb(
* int unused,
* int vendor_device,
* int index,
* void **pconf,
* int *ahb_bus_index,
* int option,
* )
*
* Find a AHB Master or AHB Slave device, it puts the address of the AHB PnP
* configuration in o3 (pconf), the I/O Area base address in o4 (pioarea).
*
* Calls _nomem_find_ahb_bus for every AHB bus.
*
* i0-i7, l0, l1, o6, g1, g4-g7 is not available for use.
*
* Arguments
* - o0 Unused
*
* Results
* - o0 Number of found devices (1 or 0)
* - o2 Decremented Index (Zero if found)
* - o3 Address of the AHB PnP configuration entry
* - o4 AHB Bus index the device was found on (if o0=1)
* - o5 Left untouched
*
* Clobbered
* - o0 (AHB Bridge and used by _nomem_find_ahb_bus)
* - o2 (index is decremented)
* - l2 (Current AHB Bus index)
* - g2 (return address)
*/
_nomem_find_ahb:
mov %o7, %g2 /* Save return address */
/* Scan all AHB Buses found for the AHB Master/Slave matching VENDOR:DEVICE */
clr %l2
.L_search_next_ahb_bus:
add %l2, 1, %l2
call get_ahb_bridge /* Get bus %l0 I/O Area */
mov %l2, %o0
cmp %o0, %g0
be .L_no_device_found /* If no more AHB bus is left to be scanned, proceed */
nop
call _nomem_find_ahb_bus /* Scan AHB bus %o0 for VENDOR:DEVICE. Index in o3 is decremented */
nop
cmp %o0, %g0 /* If VENDOR:DEVICE was not found scan next AHB Bus */
be .L_search_next_ahb_bus /* Do next bus is o0=0 (not found) */
nop
/* The device was found, o0 is 1 */
mov %g2, %o7 /* Restore return address */
retl
mov %l2, %o4 /* The AHB bus index the device was found on */
/* No device found matching */
.L_no_device_found:
mov %g2, %o7 /* Restore return address */
retl
mov %g0, %o0
/* FUNCTION int _nomem_find_apb_bus(
* int apbmst,
* int vendor_device,
* int index,
* void **pconf
* )
*
* Find a APB Slave device, it puts the address of the APB PnP configuration
* in o3 (pconf).
*
* Calls _nomem_find_ahb_bus for every AHB bus searching for AHB/APB Bridges.
* The AHB/APB bridges are AHB Slaves with ID GAISLER_APBMST.
*
* Results
* - o0 Number of found devices (1 or 0)
* - o2 Decremented Index
* - o3 Address of the found APB device PnP configuration entry
*
* Clobbered
* - o5 PnP VENDOR:DEVICE ID
*/
_nomem_find_apb_bus:
set AMBA_CONF_AREA, %o3
or %o0, %o3, %o3 /* Calc start of APB device PnP info */
add %g0, 16, %o0 /* o0, number of APB Slaves left to scan */
.L_process_one_apb_conf:
ld [%o3], %o5
andn %o5, 0xfff, %o5
cmp %o5, 0 /* No device if zero */
beq .L_process_apb_dev_not_found
cmp %o1, 0 /* If VENDOR:DEVICE == -1, consider all matching */
beq .L_process_apb_dev_found
cmp %o1, %o5 /* Found VENDOR:DEVICE */
bne .L_process_apb_dev_not_found
nop
.L_process_apb_dev_found:
/* Found matching device, compare index */
cmp %o2, %g0
bne .L_process_apb_dev_not_found
dec %o2
/* Matching index and VENDOR:DEVICE */
retl
add %g0, 1, %o0
.L_process_apb_dev_not_found:
subcc %o0, 1, %o0
bne .L_process_one_apb_conf
add %o3, 8, %o3
retl
mov %g0, %o0
/* FUNCTION int _nomem_find_apb(
* int unused,
* int vendor_device,
* int index,
* void **pconf,
* int *ahb_bus_index
* )
*
* Find a APB Slave device, it puts the address of the APB PnP configuration
* in o3 (pconf), the APB Master I/O Area base address in o4 (papbarea).
*
* Calls _nomem_find_ahb_bus for every AHB bus searching for AHB/APB Bridges.
* The AHB/APB bridges are AHB Slaves with ID GAISLER_APBMST.
*
* i0-i7, l0, l1, o6 is not available for use.
*
* Arguments
* - o0 Unused
*
* Results
* - o0 Number of found devices (1 or 0)
* - o2 Decremented Index if not found
* - o3 Address of the APB PnP configuration entry
* - o4 AHB Bus index of APB Bridge/APB Device
*
* Clobbered
* - o0 (AHB Bridge)
* - o2 (index is decremented)
* - l2 (APB DEV Index [7..4] : APBMST AHB Index [3..0])
* - l3 (Current AHB Bus index)
* - l4 (temporary storage for APB VENDOR:DEVICE)
* - o5 (AHB Slave ID)
* - o0 (clobbered by _nomem_find_ahb_bus)
* - g2 (Return address)
*/
_nomem_find_apb:
/* Scan all AHB Buses found for AHB/APB Bridges */
mov %o7, %g2 /* Save return address */
mov %o1, %l4 /* Save APB VENDOR:DEVICE */
sll %o2, 4, %l2 /* APB MST index = 0 */
add %g0, 1, %l3 /* AHB Bus index = 0 */
.L2_search_next_ahb_bus:
call get_ahb_bridge /* Get bus %l3 I/O Area */
mov %l3, %o0
cmp %o0, %g0
be .L2_no_device_found /* If no more AHB bus is left to be scanned, proceed */
add %g0, DEV_AHB_SLV, %o5 /* Search for AHB Slave */
sethi %hi(AMBA_PNP_ID(VENDOR_GAISLER, GAISLER_APBMST)), %o1
call _nomem_find_ahb_bus /* Scan AHB bus %o0 for VENDOR:DEVICE. Index in o3 is decremented */
and %l2, 0xf, %o2 /* Set APBMST index */
cmp %o0, %g0 /* If no AHB/APB Bridge was not found, scan next AHB Bus */
be .L_no_apb_bridge_found /* Do next bus */
nop
/* The AHB/APB Bridge was found.
* Search for the requested APB Device on the APB bus using
* find_apb_bus, it will decrement the index.
*/
ld [%o3 + AMBA_AHB_MBAR0_OFS], %o3
sll %o3, 16, %o0
and %o0, %o3, %o0 /* Address AND Address Mask */
sethi %hi(0xfff00000), %o3
and %o0, %o3, %o0 /* AHB/APB Bridge address */
srl %l2, 4, %o2 /* APB DEV Index */
call _nomem_find_apb_bus
mov %l4, %o1 /* APB VENDOR:DEVICE */
cmp %o0, %g0
be .L_apb_dev_not_found
mov %g2, %o7 /* Restore return address */
/* APB Device found
* o0 1
* o2 Index is decremented to zero
* o3 APB configuration address,
* o4 APB Bridge Configuration address.
*/
mov %g0, %o2
retl
mov %l3, %o4
.L_apb_dev_not_found:
/* Update APB DEV Index by saving output from find_apb_bus
* (index parameter) into bits [31..4] in L2.
*/
sll %o2, 4, %o2
and %l2, 0xf, %l2
or %o2, %l2, %l2
/* Try finding the next AHB/APB Bridge on the same AHB bus
* to find more APB devices
*/
ba .L2_search_next_ahb_bus /* Find next AHB/APB bridge */
inc %l2
.L_no_apb_bridge_found:
inc %l3 /* Next AHB Bus */
ba .L2_search_next_ahb_bus /* Process next AHB bus */
andn %l2, 0xf, %l2 /* Start at APB Bridge index 0 at every AHB Bus */
/* No device found matching */
.L2_no_device_found:
mov %g2, %o7 /* Restore return address */
srl %l2, 4, %o2 /* APB DEV Index */
retl
mov %g0, %o0
/* FUNCTION _nomem_amba_scan_gaisler_ahb2ahb_bridge(unsigned int bridge, int bus)
*
* Constraints:
* - o1 may not be used
* - o0, o2, o3 may be used.
*
* Arguments
* - o0 PnP Address of Bridge AHB device
* - o2 PnP ID of AHB device
*
* Results
* - o0 Address of new bus PnP area or a 1 if AHB device is no bridge
*
* Clobbered
* - o0, o2
*
*/
_nomem_amba_scan_gaisler_ahb2ahb_bridge:
andn %o2, 0xfff, %o2
sethi %hi(AMBA_PNP_ID(VENDOR_GAISLER,GAISLER_AHB2AHB)), %o3
cmp %o2, %o3
beq .L_is_ahb2ahb_bridge
nop
retl
add %g0, 1, %o0
.L_is_ahb2ahb_bridge:
/* Found a GAISLER AHB2AHB bridge */
retl
ld [%o0 + AMBA_AHB_CUSTOM1_OFS], %o0 /* Get address of bridge PnP area */
/* FUNCTION _nomem_amba_scan_gaisler_l2cache_bridge(unsigned int bridge, int bus)
*
* Constraints:
* - o1 may not be used
* - o0, o2, o3 may be used.
*
* Arguments
* - o0 PnP Address of Bridge AHB device
* - o2 PnP ID of AHB device
*
* Results
* - o0 Address of new bus PnP area or a 1 if AHB device is no bridge
*
* Clobbered
* - o0, o2
*
*/
_nomem_amba_scan_gaisler_l2cache_bridge:
andn %o2, 0xfff, %o2
sethi %hi(AMBA_PNP_ID(VENDOR_GAISLER,GAISLER_L2CACHE)), %o3
cmp %o2, %o3
beq .L_is_l2cache_bridge
nop
retl
add %g0, 1, %o0
.L_is_l2cache_bridge:
/* Found a GAISLER l2cache bridge */
retl
ld [%o0 + AMBA_AHB_CUSTOM1_OFS], %o0 /* Get address of bridge PnP area */
/* FUNCTION _nomem_amba_scan(unsigned int bridge, int bus)
*
* Constraints:
* i0-i7, l0 is used by caller
* o5-o7 may not be used.
*
* Arguments
* - o0 Bridge Information: I/O AREA and parent bus
* - o1 Bus
*
* Results
* - o0 Number of AHB bridges found
*
* Clobbered
* - o0 (Current AHB slave conf address)
* - o2 (Used by insert_bridge)
* - o3 (Used by insert_bridge)
* - l1 (Number of AHB Slaves left to process)
* - l2 (Current AHB slave conf address)
* - g2 (Return address)
*/
_nomem_amba_scan:
mov %o7, %g2 /* Save return address */
set 16, %l1
cmp %o1, 1
be,a .L2_maxloops_detected
add %g0, 64, %l1
.L2_maxloops_detected:
/* Clear 3-bit parent bus from bridge to get I/O AREA, then or
* (AMBA_CONF_AREA | AMBA_AHB_SLAVE_CONF_AREA) to get first AHB slave
* conf address.
*/
andn %o0, 0x7ff, %o0
set (AMBA_CONF_AREA | AMBA_AHB_SLAVE_CONF_AREA), %l2
or %o0, %l2, %l2
/* Scan AHB Slave area for AHB<->AHB bridges. For each AHB device
* all "bridge drivers" are called, the driver function interface:
*
* Input:
* - o0 PnP Address of Bridge AHB device
* - o2 PnP ID of AHB device
* Return values:
* - o0 Address of new bus PnP area, returning a 1 in o2 means not found
*
* Constraints:
* - o1 may not be used
* - o0, o2, o3 may be used.
*
*/
.L_scan_one_ahb_slave:
ld [%l2], %o2
cmp %o2, %g0
beq .L_scan_next_ahb_slave
nop
/* Call the GAISLER AHB2AHB bridge driver */
call _nomem_amba_scan_gaisler_ahb2ahb_bridge
mov %l2, %o0
cmp %o0, 1
bne .L_found_bridge
ld [%l2], %o2
/* Call the GAISLER L2CACHE bridge driver */
call _nomem_amba_scan_gaisler_l2cache_bridge
mov %l2, %o0
cmp %o0, 1
bne .L_found_bridge
ld [%l2], %o2
/* Insert next bridge "driver" function here */
/* The PnP ID did not match a bridge - a new bus was not found ==>
* step to next AHB device */
ba .L_scan_next_ahb_slave
nop
/* Add Found bus */
.L_found_bridge:
and %l2, 0x7e0, %o2
or %o2, %o0, %o0 /* Add AHB/AHB Bridge PnP address */
call insert_ahb_bridge /* Insert Bridge into found buses storage */
or %o1, %o0, %o0 /* Add parent bus LSB 3-bits */
.L_scan_next_ahb_slave:
/* More Slaves to process? */
subcc %l1, 1, %l1
bne .L_scan_one_ahb_slave
add %l2, AMBA_AHB_CONF_LENGH, %l2
/* No more AHB devices to process */
mov %g2, %o7 /* Restore return address */
retl
nop
/* FUNCTION _nomem_ambapp_find_buses(unsigned int ioarea)
*
* Find AMBA AHB buses.
*
* Constraints:
* i6-i7, l7 is used by caller
*
* Arguments
* - o0 Bridge Information: I/O AREA and parent bus
*
* Results
* - o0 Number of AHB bridges found
* - i0-i5 initialized
*
* Clobbered
* - o0 (Current AHB slave conf address)
* - o2 (Used by insert_bridge)
* - o3 (Used by insert_bridge)
* - l0 (Current AHB Bus)
* - l1 (Used by nomem_amba_scan)
* - l2 (Used by nomem_amba_scan)
* - l3 (Used by nomem_amba_scan)
* - l4 (Used by nomem_amba_scan)
*
* - g1 (level 1 return address)
* - g2 (Used by nomem_amba_scan)
*/
_nomem_ambapp_find_buses:
mov %o7, %g1 /* Save return address */
/* Initialize AHB Bus storage */
call init_ahb_bridges
nop
/* Insert AHB Bus 0 */
call insert_ahb_bridge
nop /* Argument already prepared by caller */
/* Scan AHB Bus 0 for AHB Bridges */
call _nomem_amba_scan
add %g0, 1, %o1
/* Scan all AHB Buses found for more AHB Bridges */
add %g0, 2, %l0
.L100_search_next_ahb_bus:
call get_ahb_bridge /* Get bus %l0 I/O Area */
mov %l0, %o0
cmp %o0, %g0
be .L100_return /* If no more AHB bus is left to be scanned, proceed */
nop
call _nomem_amba_scan /* Scan bus %l0 for AHB Bridges. i0-i7,l0 is used */
mov %l0, %o1 /* I/O AREA untouched in o0 */
ba .L100_search_next_ahb_bus /* Do next bus */
add %l0, 1, %l0
.L100_return:
mov %g1, %o7
retl
nop
/* FUNCTION _nomem_amba_init(unsigned int ioarea)
*
* Find all AHB buses
*
* Constraints:
* i6, i7, o6, o7, l7, l6, g3, g4, g5, g6, g7 is used by caller
*
* Arguments
* - o0 Bridge Information: I/O AREA and parent bus
*
* Results
* - o0 Number of AHB bridges found
*
* Clobbered
* - l0, l1, l2, l3, l4, g1, g2 (used by _nomem_ambapp_find_buses)
* - o0, o1, o2, o3 (Used as arguments)
* - o5 (return address)
* - g1 (level 1 return address)
* - g2 (level 2 return address)
*/
_nomem_amba_init:
mov %o7, %o5 /* Save return address, o5 not used */
/* Scan for buses, it will init i0-i5 */
call _nomem_ambapp_find_buses
nop
mov %o5, %o7
retl
nop
/* Call tree and their return address register
*
*_nomem_amba_scan (g1)
* -> init_ahb_bridges (o7)
* -> insert_ahb_bridge (o7)
* -> _nomem_amba_scan (g2)
* -> insert_ahb_bridge (o7)
* -> get_ahb_bridge (o7)
*
*
* -> _nomem_find_apb (g2)
* -> get_ahb_bridge (o7)
* -> _nomem_find_ahb_bus (o7)
* -> _nomem_find_apb_bus (o7)
* -> _nomem_find_ahb (g2)
* -> get_ahb_bridge (o7)
* -> _nomem_find_ahb_bus (o7)
* -> mem_handler.func() (o7)
*
*/

113
arch/sparc/cpu/leon3/ambapp_low_c.S Normal file
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@ -0,0 +1,113 @@
/* C-interface for AMBA PnP scanning functions implemented in
* ambapp_low.S. At the point the memory and stack can be
* used.
*
* (C) Copyright 2010, 2015
* Daniel Hellstrom, Cobham Gaisler, daniel@gaisler.com.
*
* SPDX-License-Identifier: GPL-2.0+
*/
.seg "text"
.extern _nomem_ambapp_find_buses
.extern _nomem_find_apb
.extern _nomem_find_ahb
.globl ambapp_find_buses
.globl ambapp_find_apb
.globl ambapp_find_ahb
/* C-interface for _nomem_ambapp_find_buses used when memory is available.
*/
ambapp_find_buses:
save %sp, -104, %sp
mov %i1, %l7 /* Save second argument */
call _nomem_ambapp_find_buses
mov %i0, %o0
/* Store result */
st %g0, [%l7+0x00]
st %i0, [%l7+0x04]
st %i1, [%l7+0x08]
st %i2, [%l7+0x0c]
st %i3, [%l7+0x10]
st %i4, [%l7+0x14]
st %i5, [%l7+0x18]
ret
restore
/* C-interface for _nomem_find_apb used when memory is available.
*
* void ambapp_find_apb(
* struct ambapp_bus *abus,
* unsigned int dev_vend,
* int index,
* struct ambapp_find_apb_info *result
* );
*
*/
ambapp_find_apb:
save %sp, -104, %sp
mov %i3, %l7 /* Save second argument */
mov %i1, %o1
mov %i2, %o2
/* Initialize buses available in system */
ld [%i0+0x08], %i1
ld [%i0+0x0c], %i2
ld [%i0+0x10], %i3
ld [%i0+0x14], %i4
ld [%i0+0x18], %i5
call _nomem_find_apb
ld [%i0+0x04], %i0
st %o2, [%l7+0x08] /* Decremented Index */
st %o3, [%l7] /* PnP configuration address of APB Device */
st %o4, [%l7+0x04] /* AHB Bus Index of AHB/APB bridge and APB Device */
mov %o0, %i0
ret
restore
/* C-interface for _nomem_find_ahb used when memory is available.
*
* void ambapp_find_ahb(
* struct ambapp_bus *abus,
* unsigned int dev_vend,
* int index,
* int type,
* struct ambapp_find_ahb_info *result
* );
*
*/
ambapp_find_ahb:
save %sp, -104, %sp
mov %i4, %l7 /* Save second argument */
clr %o0
mov %i1, %o1
mov %i2, %o2
clr %o3
clr %o4
mov %i3, %o5
/* Initialize buses available in system */
ld [%i0+0x08], %i1
ld [%i0+0x0c], %i2
ld [%i0+0x10], %i3
ld [%i0+0x14], %i4
ld [%i0+0x18], %i5
call _nomem_find_ahb
ld [%i0+0x04], %i0
st %o2, [%l7+0x08] /* Decremented Index */
st %o3, [%l7] /* PnP configuration address of AHB Device */
st %o4, [%l7+0x04] /* AHB Bus Index of AHB Device */
mov %o0, %i0
ret
restore

192
arch/sparc/cpu/leon3/cpu_init.c
View File

@ -1,8 +1,8 @@
/* Initializes CPU and basic hardware such as memory
* controllers, IRQ controller and system timer 0.
*
* (C) Copyright 2007
* Daniel Hellstrom, Gaisler Research, daniel@gaisler.com
* (C) Copyright 2007, 2015
* Daniel Hellstrom, Cobham Gaisler, daniel@gaisler.com
*
* SPDX-License-Identifier: GPL-2.0+
*/
@ -14,6 +14,11 @@
#include <config.h>
/* Default Plug&Play I/O area */
#ifndef CONFIG_AMBAPP_IOAREA
#define CONFIG_AMBAPP_IOAREA AMBA_DEFAULT_IOAREA
#endif
#define TIMER_BASE_CLK 1000000
#define US_PER_TICK (1000000 / CONFIG_SYS_HZ)
@ -39,64 +44,30 @@ struct {
/*
* Breath some life into the CPU...
*
* Set up the memory map,
* initialize a bunch of registers.
*
* Run from FLASH/PROM:
* - until memory controller is set up, only registers available
* - memory controller has already been setup up, stack can be used
* - no global variables available for writing
* - constants available
*/
void cpu_init_f(void)
{
/* these varaiable must not be initialized */
ambapp_dev_irqmp *irqmp;
ambapp_apbdev apbdev;
register unsigned int apbmst;
/* find AMBA APB Master */
apbmst = (unsigned int)
ambapp_ahb_next_nomem(VENDOR_GAISLER, GAISLER_APBMST, 1, 0);
if (!apbmst) {
/*
* no AHB/APB bridge, something is wrong
* ==> jump to start (or hang)
*/
while (1) ;
}
/* Init memory controller */
if (init_memory_ctrl()) {
while (1) ;
}
/****************************************************
* From here we can use the main memory and the stack.
*/
/* Find AMBA APB IRQMP Controller */
if (ambapp_apb_first(VENDOR_GAISLER, GAISLER_IRQMP, &apbdev) != 1) {
/* no IRQ controller, something is wrong
* ==> jump to start (or hang)
*/
while (1) ;
}
irqmp = (ambapp_dev_irqmp *) apbdev.address;
/* initialize the IRQMP */
irqmp->ilevel = 0xf; /* all IRQ off */
irqmp->iforce = 0;
irqmp->ipend = 0;
irqmp->iclear = 0xfffe; /* clear all old pending interrupts */
irqmp->cpu_mask[0] = 0; /* mask all IRQs on CPU 0 */
irqmp->cpu_force[0] = 0; /* no force IRQ on CPU 0 */
/* cache */
}
/* Routine called from start.S,
*
* Run from FLASH/PROM:
* - memory controller has already been setup up, stack can be used
* - global variables available for read/writing
* - constants avaiable
*/
void cpu_init_f2(void)
{
/* Initialize the AMBA Plug & Play bus structure, the bus
* structure represents the AMBA bus that the CPU is located at.
*/
ambapp_bus_init(CONFIG_AMBAPP_IOAREA, CONFIG_SYS_CLK_FREQ, &ambapp_plb);
}
/*
@ -105,95 +76,58 @@ void cpu_init_f2(void)
int cpu_init_r(void)
{
ambapp_apbdev apbdev;
int index, cpu;
ambapp_dev_gptimer *timer = NULL;
unsigned int bus_freq;
/*
* Find AMBA APB IRQMP Controller,
* When we come so far we know there is a IRQMP available
*/
ambapp_apb_first(VENDOR_GAISLER, GAISLER_IRQMP, &apbdev);
irqmp = (ambapp_dev_irqmp *) apbdev.address;
if (ambapp_apb_find(&ambapp_plb, VENDOR_GAISLER,
GAISLER_IRQMP, 0, &apbdev) != 1) {
panic("%s: IRQ controller not found\n", __func__);
return -1;
}
irqmp = (ambapp_dev_irqmp *)apbdev.address;
/* initialize the IRQMP */
irqmp->ilevel = 0xf; /* all IRQ off */
irqmp->iforce = 0;
irqmp->ipend = 0;
irqmp->iclear = 0xfffe; /* clear all old pending interrupts */
for (cpu = 0; cpu < 16; cpu++) {
/* mask and clear force for all IRQs on CPU[N] */
irqmp->cpu_mask[cpu] = 0;
irqmp->cpu_force[cpu] = 0;
}
/* timer */
if (ambapp_apb_first(VENDOR_GAISLER, GAISLER_GPTIMER, &apbdev) != 1) {
printf("cpu_init_r: gptimer not found!\n");
index = 0;
while (ambapp_apb_find(&ambapp_plb, VENDOR_GAISLER, GAISLER_GPTIMER,
index, &apbdev) == 1) {
timer = (ambapp_dev_gptimer *)apbdev.address;
if (gptimer == NULL) {
gptimer = timer;
gptimer_irq = apbdev.irq;
}
/* Different buses may have different frequency, the
* frequency of the bus tell in which frequency the timer
* prescaler operates.
*/
bus_freq = ambapp_bus_freq(&ambapp_plb, apbdev.ahb_bus_index);
/* initialize prescaler common to all timers to 1MHz */
timer->scalar = timer->scalar_reload =
(((bus_freq / 1000) + 500) / 1000) - 1;
index++;
}
if (!gptimer) {
printf("%s: gptimer not found!\n", __func__);
return 1;
}
gptimer = (ambapp_dev_gptimer *) apbdev.address;
gptimer_irq = apbdev.irq;
/* initialize prescaler common to all timers to 1MHz */
gptimer->scalar = gptimer->scalar_reload =
(((CONFIG_SYS_CLK_FREQ / 1000) + 500) / 1000) - 1;
return (0);
}
/* find & setup memory controller */
int init_memory_ctrl()
{
register ambapp_dev_mctrl *mctrl;
register ambapp_dev_sdctrl *sdctrl;
register ambapp_dev_ddrspa *ddrspa;
register ambapp_dev_ddr2spa *ddr2spa;
register ahbctrl_pp_dev *ahb;
register unsigned int base;
register int not_found_mctrl = -1;
/* find ESA Memory controller */
base = ambapp_apb_next_nomem(VENDOR_ESA, ESA_MCTRL, 0);
if (base) {
mctrl = (ambapp_dev_mctrl *) base;
/* config MCTRL memory controller */
mctrl->mcfg1 = CONFIG_SYS_GRLIB_MEMCFG1 | (mctrl->mcfg1 & 0x300);
mctrl->mcfg2 = CONFIG_SYS_GRLIB_MEMCFG2;
mctrl->mcfg3 = CONFIG_SYS_GRLIB_MEMCFG3;
not_found_mctrl = 0;
}
/* find Gaisler Fault Tolerant Memory controller */
base = ambapp_apb_next_nomem(VENDOR_GAISLER, GAISLER_FTMCTRL, 0);
if (base) {
mctrl = (ambapp_dev_mctrl *) base;
/* config MCTRL memory controller */
mctrl->mcfg1 = CONFIG_SYS_GRLIB_FT_MEMCFG1 | (mctrl->mcfg1 & 0x300);
mctrl->mcfg2 = CONFIG_SYS_GRLIB_FT_MEMCFG2;
mctrl->mcfg3 = CONFIG_SYS_GRLIB_FT_MEMCFG3;
not_found_mctrl = 0;
}
/* find SDRAM controller */
base = ambapp_apb_next_nomem(VENDOR_GAISLER, GAISLER_SDCTRL, 0);
if (base) {
sdctrl = (ambapp_dev_sdctrl *) base;
/* config memory controller */
sdctrl->sdcfg = CONFIG_SYS_GRLIB_SDRAM;
not_found_mctrl = 0;
}
ahb = ambapp_ahb_next_nomem(VENDOR_GAISLER, GAISLER_DDR2SPA, 1, 0);
if (ahb) {
ddr2spa = (ambapp_dev_ddr2spa *) ambapp_ahb_get_info(ahb, 1);
/* Config DDR2 memory controller */
ddr2spa->cfg1 = CONFIG_SYS_GRLIB_DDR2_CFG1;
ddr2spa->cfg3 = CONFIG_SYS_GRLIB_DDR2_CFG3;
not_found_mctrl = 0;
}
ahb = ambapp_ahb_next_nomem(VENDOR_GAISLER, GAISLER_DDRSPA, 1, 0);
if (ahb) {
ddrspa = (ambapp_dev_ddrspa *) ambapp_ahb_get_info(ahb, 1);
/* Config DDR memory controller */
ddrspa->ctrl = CONFIG_SYS_GRLIB_DDR_CFG;
not_found_mctrl = 0;
}
/* failed to find any memory controller */
return not_found_mctrl;
return 0;
}
/* Uses Timer 0 to get accurate

8
arch/sparc/cpu/leon3/serial.c
View File

@ -14,6 +14,11 @@
DECLARE_GLOBAL_DATA_PTR;
/* Select which UART that will become u-boot console */
#ifndef CONFIG_SYS_GRLIB_APBUART_INDEX
#define CONFIG_SYS_GRLIB_APBUART_INDEX 0
#endif
static int leon3_serial_init(void)
{
ambapp_dev_apbuart *uart;
@ -21,7 +26,8 @@ static int leon3_serial_init(void)
unsigned int tmp;
/* find UART */
if (ambapp_apb_first(VENDOR_GAISLER, GAISLER_APBUART, &apbdev) != 1)
if (ambapp_apb_find(&ambapp_plb, VENDOR_GAISLER, GAISLER_APBUART,
CONFIG_SYS_GRLIB_APBUART_INDEX, &apbdev) != 1)
return -1; /* didn't find hardware */
/* found apbuart, let's init .. */

4
arch/sparc/cpu/leon3/usb_uhci.c
View File

@ -690,11 +690,11 @@ void handle_usb_interrupt(void)
*/
int usb_lowlevel_init(int index, enum usb_init_type init, void **controller)
{
unsigned char temp;
ambapp_ahbdev ahbdev;
/* Find GRUSB core using AMBA Plug&Play information */
if (ambapp_ahbslv_first(VENDOR_GAISLER, GAISLER_UHCI, &ahbdev) != 1) {
if (ambapp_ahbslv_find(&ambapp_plb, VENDOR_GAISLER, GAISLER_UHCI,
CONFIG_SYS_GRLIB_GRUSB_INDEX, &ahbdev) != 1) {
printf("USB UHCI: Failed to find GRUSB controller\n");
return -1;
}

546
common/cmd_ambapp.c
View File

@ -15,92 +15,358 @@
DECLARE_GLOBAL_DATA_PTR;
/* We put these variables into .data section so that they are zero
* when entering the AMBA Plug & Play routines (in cpu/cpu/ambapp.c)
* the first time. BSS is not garantueed to be zero since BSS
* hasn't been cleared the first times entering the CPU AMBA functions.
*
* The AMBA PnP routines call these functions if ambapp_???_print is set.
*
*/
int ambapp_apb_print __attribute__ ((section(".data"))) = 0;
int ambapp_ahb_print __attribute__ ((section(".data"))) = 0;
typedef struct {
int device_id;
char *name;
char *desc;
} ambapp_device_name;
static ambapp_device_name gaisler_devices[] = {
{GAISLER_LEON3, "GAISLER_LEON3"},
{GAISLER_LEON3DSU, "GAISLER_LEON3DSU"},
{GAISLER_ETHAHB, "GAISLER_ETHAHB"},
{GAISLER_ETHMAC, "GAISLER_ETHMAC"},
{GAISLER_APBMST, "GAISLER_APBMST"},
{GAISLER_AHBUART, "GAISLER_AHBUART"},
{GAISLER_SRCTRL, "GAISLER_SRCTRL"},
{GAISLER_SDCTRL, "GAISLER_SDCTRL"},
{GAISLER_APBUART, "GAISLER_APBUART"},
{GAISLER_IRQMP, "GAISLER_IRQMP"},
{GAISLER_AHBRAM, "GAISLER_AHBRAM"},
{GAISLER_GPTIMER, "GAISLER_GPTIMER"},
{GAISLER_PCITRG, "GAISLER_PCITRG"},
{GAISLER_PCISBRG, "GAISLER_PCISBRG"},
{GAISLER_PCIFBRG, "GAISLER_PCIFBRG"},
{GAISLER_PCITRACE, "GAISLER_PCITRACE"},
{GAISLER_AHBTRACE, "GAISLER_AHBTRACE"},
{GAISLER_ETHDSU, "GAISLER_ETHDSU"},
{GAISLER_PIOPORT, "GAISLER_PIOPORT"},
{GAISLER_AHBJTAG, "GAISLER_AHBJTAG"},
{GAISLER_ATACTRL, "GAISLER_ATACTRL"},
{GAISLER_VGA, "GAISLER_VGA"},
{GAISLER_KBD, "GAISLER_KBD"},
{GAISLER_L2TIME, "GAISLER_L2TIME"},
{GAISLER_L2C, "GAISLER_L2C"},
{GAISLER_PLUGPLAY, "GAISLER_PLUGPLAY"},
{GAISLER_SPW, "GAISLER_SPW"},
{GAISLER_SPW2, "GAISLER_SPW2"},
{GAISLER_EHCI, "GAISLER_EHCI"},
{GAISLER_UHCI, "GAISLER_UHCI"},
{GAISLER_AHBSTAT, "GAISLER_AHBSTAT"},
{GAISLER_DDR2SPA, "GAISLER_DDR2SPA"},
{GAISLER_DDRSPA, "GAISLER_DDRSPA"},
{0, NULL}
};
static ambapp_device_name esa_devices[] = {
{ESA_LEON2, "ESA_LEON2"},
{ESA_MCTRL, "ESA_MCTRL"},
{0, NULL}
};
static ambapp_device_name opencores_devices[] = {
{OPENCORES_PCIBR, "OPENCORES_PCIBR"},
{OPENCORES_ETHMAC, "OPENCORES_ETHMAC"},
{0, NULL}
};
typedef struct {
unsigned int vendor_id;
char *name;
char *desc;
ambapp_device_name *devices;
} ambapp_vendor_devnames;
static ambapp_vendor_devnames vendors[] = {
{VENDOR_GAISLER, "VENDOR_GAISLER", gaisler_devices},
{VENDOR_ESA, "VENDOR_ESA", esa_devices},
{VENDOR_OPENCORES, "VENDOR_OPENCORES", opencores_devices},
{0, NULL, 0}
/** Vendor GAISLER devices */
static ambapp_device_name GAISLER_devices[] = {
{GAISLER_LEON2DSU, "LEON2DSU", "Leon2 Debug Support Unit"},
{GAISLER_LEON3, "LEON3", "Leon3 SPARC V8 Processor"},
{GAISLER_LEON3DSU, "LEON3DSU", "Leon3 Debug Support Unit"},
{GAISLER_ETHAHB, "ETHAHB", "OC ethernet AHB interface"},
{GAISLER_APBMST, "APBMST", "AHB/APB Bridge"},
{GAISLER_AHBUART, "AHBUART", "AHB Debug UART"},
{GAISLER_SRCTRL, "SRCTRL", "Simple SRAM Controller"},
{GAISLER_SDCTRL, "SDCTRL", "PC133 SDRAM Controller"},
{GAISLER_SSRCTRL, "SSRCTRL", "Synchronous SRAM Controller"},
{GAISLER_APBUART, "APBUART", "Generic UART"},
{GAISLER_IRQMP, "IRQMP", "Multi-processor Interrupt Ctrl."},
{GAISLER_AHBRAM, "AHBRAM", "Single-port AHB SRAM module"},
{GAISLER_AHBDPRAM, "AHBDPRAM", "Dual-port AHB SRAM module"},
{GAISLER_GPTIMER, "GPTIMER", "Modular Timer Unit"},
{GAISLER_PCITRG, "PCITRG", "Simple 32-bit PCI Target"},
{GAISLER_PCISBRG, "PCISBRG", "Simple 32-bit PCI Bridge"},
{GAISLER_PCIFBRG, "PCIFBRG", "Fast 32-bit PCI Bridge"},
{GAISLER_PCITRACE, "PCITRACE", "32-bit PCI Trace Buffer"},
{GAISLER_DMACTRL, "DMACTRL", "AMBA DMA controller"},
{GAISLER_AHBTRACE, "AHBTRACE", "AMBA Trace Buffer"},
{GAISLER_DSUCTRL, "DSUCTRL", "DSU/ETH controller"},
{GAISLER_CANAHB, "CANAHB", "OC CAN AHB interface"},
{GAISLER_GPIO, "GPIO", "General Purpose I/O port"},
{GAISLER_AHBROM, "AHBROM", "Generic AHB ROM"},
{GAISLER_AHBJTAG, "AHBJTAG", "JTAG Debug Link"},
{GAISLER_ETHMAC, "ETHMAC", "GR Ethernet MAC"},
{GAISLER_SWNODE, "SWNODE", "SpaceWire Node Interface"},
{GAISLER_SPW, "SPW", "SpaceWire Serial Link"},
{GAISLER_AHB2AHB, "AHB2AHB", "AHB-to-AHB Bridge"},
{GAISLER_USBDC, "USBDC", "GR USB 2.0 Device Controller"},
{GAISLER_USB_DCL, "USB_DCL", "USB Debug Communication Link"},
{GAISLER_DDRMP, "DDRMP", "Multi-port DDR controller"},
{GAISLER_ATACTRL, "ATACTRL", "ATA controller"},
{GAISLER_DDRSP, "DDRSP", "Single-port DDR266 controller"},
{GAISLER_EHCI, "EHCI", "USB Enhanced Host Controller"},
{GAISLER_UHCI, "UHCI", "USB Universal Host Controller"},
{GAISLER_I2CMST, "I2CMST", "AMBA Wrapper for OC I2C-master"},
{GAISLER_SPW2, "SPW2", "GRSPW2 SpaceWire Serial Link"},
{GAISLER_AHBDMA, "AHBDMA", ""},
{GAISLER_NUHOSP3, "NUHOSP3", "Nuhorizons Spartan3 IO I/F"},
{GAISLER_CLKGATE, "CLKGATE", "Clock gating unit"},
{GAISLER_SPICTRL, "SPICTRL", "SPI Controller"},
{GAISLER_DDR2SP, "DDR2SP", "Single-port DDR2 controller"},
{GAISLER_SLINK, "SLINK", "SLINK Master"},
{GAISLER_GRTM, "GRTM", "CCSDS Telemetry Encoder"},
{GAISLER_GRTC, "GRTC", "CCSDS Telecommand Decoder"},
{GAISLER_GRPW, "GRPW", "PacketWire to AMBA AHB I/F"},
{GAISLER_GRCTM, "GRCTM", "CCSDS Time Manager"},
{GAISLER_GRHCAN, "GRHCAN", "ESA HurriCANe CAN with DMA"},
{GAISLER_GRFIFO, "GRFIFO", "FIFO Controller"},
{GAISLER_GRADCDAC, "GRADCDAC", "ADC / DAC Interface"},
{GAISLER_GRPULSE, "GRPULSE", "General Purpose I/O with Pulses"},
{GAISLER_GRTIMER, "GRTIMER", "Timer Unit with Latches"},
{GAISLER_AHB2PP, "AHB2PP", "AMBA AHB to Packet Parallel I/F"},
{GAISLER_GRVERSION, "GRVERSION", "Version and Revision Register"},
{GAISLER_APB2PW, "APB2PW", "PacketWire Transmit Interface"},
{GAISLER_PW2APB, "PW2APB", "PacketWire Receive Interface"},
{GAISLER_GRCAN, "GRCAN", "CAN Controller with DMA"},
{GAISLER_I2CSLV, "I2CSLV", "I2C Slave"},
{GAISLER_U16550, "U16550", "Simple 16550 UART"},
{GAISLER_AHBMST_EM, "AHBMST_EM", "AMBA Master Emulator"},
{GAISLER_AHBSLV_EM, "AHBSLV_EM", "AMBA Slave Emulator"},
{GAISLER_GRTESTMOD, "GRTESTMOD", "Test report module"},
{GAISLER_ASCS, "ASCS", "ASCS Master"},
{GAISLER_IPMVBCTRL, "IPMVBCTRL", "IPM-bus/MVBC memory controller"},
{GAISLER_SPIMCTRL, "SPIMCTRL", "SPI Memory Controller"},
{GAISLER_LEON4, "LEON4", "Leon4 SPARC V8 Processor"},
{GAISLER_LEON4DSU, "LEON4DSU", "Leon4 Debug Support Unit"},
{GAISLER_PWM, "PWM", "PWM generator"},
{GAISLER_L2CACHE, "L2CACHE", "L2-Cache Controller"},
{GAISLER_SDCTRL64, "SDCTRL64", ""},
{GAISLER_FTAHBRAM, "FTAHBRAM", "Generic FT AHB SRAM module"},
{GAISLER_FTSRCTRL, "FTSRCTRL", "Simple FT SRAM Controller"},
{GAISLER_AHBSTAT, "AHBSTAT", "AHB Status Register"},
{GAISLER_LEON3FT, "LEON3FT", "Leon3-FT SPARC V8 Processor"},
{GAISLER_FTMCTRL, "FTMCTRL", "Memory controller with EDAC"},
{GAISLER_FTSDCTRL, "FTSDCTRL", "FT PC133 SDRAM Controller"},
{GAISLER_FTSRCTRL8, "FTSRCTRL8", "FT 8-bit SRAM/16-bit IO Ctrl"},
{GAISLER_APBPS2, "APBPS2", "PS2 interface"},
{GAISLER_VGACTRL, "VGACTRL", "VGA controller"},
{GAISLER_LOGAN, "LOGAN", "On chip Logic Analyzer"},
{GAISLER_SVGACTRL, "SVGACTRL", "SVGA frame buffer"},
{GAISLER_T1AHB, "T1AHB", "Niagara T1 PCX/AHB bridge"},
{GAISLER_MP7WRAP, "MP7WRAP", "CoreMP7 wrapper"},
{GAISLER_GRSYSMON, "GRSYSMON", "AMBA wrapper for System Monitor"},
{GAISLER_GRACECTRL, "GRACECTRL", "System ACE I/F Controller"},
{GAISLER_ATAHBSLV, "ATAHBSLV", "AMBA Test Framework AHB Slave"},
{GAISLER_ATAHBMST, "ATAHBMST", "AMBA Test Framework AHB Master"},
{GAISLER_ATAPBSLV, "ATAPBSLV", "AMBA Test Framework APB Slave"},
{GAISLER_B1553BC, "B1553BC", "AMBA Wrapper for Core1553BBC"},
{GAISLER_B1553RT, "B1553RT", "AMBA Wrapper for Core1553BRT"},
{GAISLER_B1553BRM, "B1553BRM", "AMBA Wrapper for Core1553BRM"},
{GAISLER_AES, "AES", "Advanced Encryption Standard"},
{GAISLER_ECC, "ECC", "Elliptic Curve Cryptography"},
{GAISLER_PCIF, "PCIF", "AMBA Wrapper for CorePCIF"},
{GAISLER_CLKMOD, "CLKMOD", "CPU Clock Switching Ctrl module"},
{GAISLER_HAPSTRAK, "HAPSTRAK", "HAPS HapsTrak I/O Port"},
{GAISLER_TEST_1X2, "TEST_1X2", "HAPS TEST_1x2 interface"},
{GAISLER_WILD2AHB, "WILD2AHB", "WildCard CardBus interface"},
{GAISLER_BIO1, "BIO1", "Basic I/O board BIO1"},
{GAISLER_SATCAN, "SATCAN", "SatCAN controller"},
{GAISLER_CANMUX, "CANMUX", "CAN Bus multiplexer"},
{GAISLER_GRTMRX, "GRTMRX", "CCSDS Telemetry Receiver"},
{GAISLER_GRTCTX, "GRTCTX", "CCSDS Telecommand Transmitter"},
{GAISLER_GRTMDESC, "GRTMDESC", "CCSDS Telemetry Descriptor"},
{GAISLER_GRTMVC, "GRTMVC", "CCSDS Telemetry VC Generator"},
{GAISLER_GEFFE, "GEFFE", "Geffe Generator"},
{GAISLER_GPREG, "GPREG", ""},
{GAISLER_GRTMPAHB, "GRTMPAHB", "CCSDS Telemetry VC AHB Input"},
{0, NULL, NULL}
};
static char *ambapp_get_devname(ambapp_device_name * devs, int id)
/** Vendor PENDER devices */
static ambapp_device_name PENDER_devices[] = {
{0, NULL, NULL}
};
/** Vendor ESA devices */
static ambapp_device_name ESA_devices[] = {
{ESA_LEON2, "LEON2", "Leon2 SPARC V8 Processor"},
{ESA_LEON2APB, "LEON2APB", "Leon2 Peripheral Bus"},
{ESA_IRQ, "IRQ", "Leon2 Interrupt Controller"},
{ESA_TIMER, "TIMER", "Leon2 Timer"},
{ESA_UART, "UART", "Leon2 UART"},
{ESA_CFG, "CFG", "Leon2 Configuration Register"},
{ESA_IO, "IO", "Leon2 Input/Output"},
{ESA_MCTRL, "MCTRL", "Leon2 Memory Controller"},
{ESA_PCIARB, "PCIARB", "PCI Arbiter"},
{ESA_HURRICANE, "HURRICANE", "HurriCANe/HurryAMBA CAN Ctrl"},
{ESA_SPW_RMAP, "SPW_RMAP", "UoD/Saab SpaceWire/RMAP link"},
{ESA_AHBUART, "AHBUART", "Leon2 AHB Debug UART"},
{ESA_SPWA, "SPWA", "ESA/ASTRIUM SpaceWire link"},
{ESA_BOSCHCAN, "BOSCHCAN", "SSC/BOSCH CAN Ctrl"},
{ESA_IRQ2, "IRQ2", "Leon2 Secondary Irq Controller"},
{ESA_AHBSTAT, "AHBSTAT", "Leon2 AHB Status Register"},
{ESA_WPROT, "WPROT", "Leon2 Write Protection"},
{ESA_WPROT2, "WPROT2", "Leon2 Extended Write Protection"},
{ESA_PDEC3AMBA, "PDEC3AMBA", "ESA CCSDS PDEC3AMBA TC Decoder"},
{ESA_PTME3AMBA, "PTME3AMBA", "ESA CCSDS PTME3AMBA TM Encoder"},
{0, NULL, NULL}
};
/** Vendor ASTRIUM devices */
static ambapp_device_name ASTRIUM_devices[] = {
{0, NULL, NULL}
};
/** Vendor OPENCHIP devices */
static ambapp_device_name OPENCHIP_devices[] = {
{OPENCHIP_APBGPIO, "APBGPIO", "APB General Purpose IO"},
{OPENCHIP_APBI2C, "APBI2C", "APB I2C Interface"},
{OPENCHIP_APBSPI, "APBSPI", "APB SPI Interface"},
{OPENCHIP_APBCHARLCD, "APBCHARLCD", "APB Character LCD"},
{OPENCHIP_APBPWM, "APBPWM", "APB PWM"},
{OPENCHIP_APBPS2, "APBPS2", "APB PS/2 Interface"},
{OPENCHIP_APBMMCSD, "APBMMCSD", "APB MMC/SD Card Interface"},
{OPENCHIP_APBNAND, "APBNAND", "APB NAND(SmartMedia) Interface"},
{OPENCHIP_APBLPC, "APBLPC", "APB LPC Interface"},
{OPENCHIP_APBCF, "APBCF", "APB CompactFlash (IDE)"},
{OPENCHIP_APBSYSACE, "APBSYSACE", "APB SystemACE Interface"},
{OPENCHIP_APB1WIRE, "APB1WIRE", "APB 1-Wire Interface"},
{OPENCHIP_APBJTAG, "APBJTAG", "APB JTAG TAP Master"},
{OPENCHIP_APBSUI, "APBSUI", "APB Simple User Interface"},
{0, NULL, NULL}
};
/** Vendor OPENCORES devices */
static ambapp_device_name OPENCORES_devices[] = {
{OPENCORES_PCIBR, "PCIBR", "PCI Bridge"},
{OPENCORES_ETHMAC, "ETHMAC", "Ethernet MAC"},
{0, NULL}
};
/** Vendor CONTRIB devices */
static ambapp_device_name CONTRIB_devices[] = {
{CONTRIB_CORE1, "CORE1", "Contributed core 1"},
{CONTRIB_CORE2, "CORE2", "Contributed core 2"},
{0, NULL, NULL}
};
/** Vendor EONIC devices */
static ambapp_device_name EONIC_devices[] = {
{0, NULL, NULL}
};
/** Vendor RADIONOR devices */
static ambapp_device_name RADIONOR_devices[] = {
{0, NULL, NULL}
};
/** Vendor GLEICHMANN devices */
static ambapp_device_name GLEICHMANN_devices[] = {
{GLEICHMANN_CUSTOM, "CUSTOM", "Custom device"},
{GLEICHMANN_GEOLCD01, "GEOLCD01", "GEOLCD01 graphics system"},
{GLEICHMANN_DAC, "DAC", "Sigma delta DAC"},
{GLEICHMANN_HPI, "HPI", "AHB-to-HPI bridge"},
{GLEICHMANN_SPI, "SPI", "SPI master"},
{GLEICHMANN_HIFC, "HIFC", "Human interface controller"},
{GLEICHMANN_ADCDAC, "ADCDAC", "Sigma delta ADC/DAC"},
{GLEICHMANN_SPIOC, "SPIOC", ""},
{GLEICHMANN_AC97, "AC97", ""},
{0, NULL, NULL}
};
/** Vendor MENTA devices */
static ambapp_device_name MENTA_devices[] = {
{0, NULL, NULL}
};
/** Vendor SUN devices */
static ambapp_device_name SUN_devices[] = {
{SUN_T1, "T1", "Niagara T1 SPARC V9 Processor"},
{SUN_S1, "S1", "Niagara S1 SPARC V9 Processor"},
{0, NULL, NULL}
};
/** Vendor MOVIDIA devices */
static ambapp_device_name MOVIDIA_devices[] = {
{0, NULL, NULL}
};
/** Vendor ORBITA devices */
static ambapp_device_name ORBITA_devices[] = {
{ORBITA_1553B, "1553B", "MIL-STD-1553B Controller"},
{ORBITA_429, "429", "429 Interface"},
{ORBITA_SPI, "SPI", "SPI Interface"},
{ORBITA_I2C, "I2C", "I2C Interface"},
{ORBITA_SMARTCARD, "SMARTCARD", "Smart Card Reader"},
{ORBITA_SDCARD, "SDCARD", "SD Card Reader"},
{ORBITA_UART16550, "UART16550", "16550 UART"},
{ORBITA_CRYPTO, "CRYPTO", "Crypto Engine"},
{ORBITA_SYSIF, "SYSIF", "System Interface"},
{ORBITA_PIO, "PIO", "Programmable IO module"},
{ORBITA_RTC, "RTC", "Real-Time Clock"},
{ORBITA_COLORLCD, "COLORLCD", "Color LCD Controller"},
{ORBITA_PCI, "PCI", "PCI Module"},
{ORBITA_DSP, "DSP", "DPS Co-Processor"},
{ORBITA_USBHOST, "USBHOST", "USB Host"},
{ORBITA_USBDEV, "USBDEV", "USB Device"},
{0, NULL, NULL}
};
/** Vendor SYNOPSYS devices */
static ambapp_device_name SYNOPSYS_devices[] = {
{0, NULL, NULL}
};
/** Vendor NASA devices */
static ambapp_device_name NASA_devices[] = {
{NASA_EP32, "EP32", "EP32 Forth processor"},
{0, NULL, NULL}
};
/** Vendor CAL devices */
static ambapp_device_name CAL_devices[] = {
{CAL_DDRCTRL, "DDRCTRL", ""},
{0, NULL, NULL}
};
/** Vendor EMBEDDIT devices */
static ambapp_device_name EMBEDDIT_devices[] = {
{0, NULL, NULL}
};
/** Vendor CETON devices */
static ambapp_device_name CETON_devices[] = {
{0, NULL, NULL}
};
/** Vendor ACTEL devices */
static ambapp_device_name ACTEL_devices[] = {
{ACTEL_COREMP7, "COREMP7", "CoreMP7 Processor"},
{0, NULL, NULL}
};
/** Vendor APPLECORE devices */
static ambapp_device_name APPLECORE_devices[] = {
{APPLECORE_UTLEON3, "UTLEON3", "AppleCore uT-LEON3 Processor"},
{APPLECORE_UTLEON3DSU, "UTLEON3DSU", "AppleCore uT-LEON3 DSU"},
{0, NULL, NULL}
};
/** Vendors and their devices */
static ambapp_vendor_devnames vendors[] = {
{VENDOR_GAISLER, "GAISLER", "Gaisler Research", GAISLER_devices},
{VENDOR_PENDER, "PENDER", "", PENDER_devices},
{VENDOR_ESA, "ESA", "European Space Agency", ESA_devices},
{VENDOR_ASTRIUM, "ASTRIUM", "", ASTRIUM_devices},
{VENDOR_OPENCHIP, "OPENCHIP", "OpenChip", OPENCHIP_devices},
{VENDOR_OPENCORES, "OPENCORES", "OpenCores", OPENCORES_devices},
{VENDOR_CONTRIB, "CONTRIB", "Various contributions", CONTRIB_devices},
{VENDOR_EONIC, "EONIC", "Eonic BV", EONIC_devices},
{VENDOR_RADIONOR, "RADIONOR", "Radionor Communications", RADIONOR_devices},
{VENDOR_GLEICHMANN, "GLEICHMANN", "Gleichmann Electronics", GLEICHMANN_devices},
{VENDOR_MENTA, "MENTA", "Menta", MENTA_devices},
{VENDOR_SUN, "SUN", "Sun Microsystems", SUN_devices},
{VENDOR_MOVIDIA, "MOVIDIA", "", MOVIDIA_devices},
{VENDOR_ORBITA, "ORBITA", "Orbita", ORBITA_devices},
{VENDOR_SYNOPSYS, "SYNOPSYS", "Synopsys Inc.", SYNOPSYS_devices},
{VENDOR_NASA, "NASA", "NASA", NASA_devices},
{VENDOR_CAL, "CAL", "", CAL_devices},
{VENDOR_EMBEDDIT, "EMBEDDIT", "Embedd.it", EMBEDDIT_devices},
{VENDOR_CETON, "CETON", "Ceton Corporation", CETON_devices},
{VENDOR_ACTEL, "ACTEL", "Actel Corporation", ACTEL_devices},
{VENDOR_APPLECORE, "APPLECORE", "AppleCore", APPLECORE_devices},
{0, NULL, NULL, NULL}
};
static ambapp_device_name *ambapp_get_dev(ambapp_device_name *devs, int id)
{
if (!devs)
return NULL;
while (devs->device_id > 0) {
if (devs->device_id == id)
return devs->name;
return devs;
devs++;
}
return NULL;
@ -109,10 +375,31 @@ static char *ambapp_get_devname(ambapp_device_name * devs, int id)
char *ambapp_device_id2str(int vendor, int id)
{
ambapp_vendor_devnames *ven = &vendors[0];
ambapp_device_name *dev;
while (ven->vendor_id > 0) {
if (ven->vendor_id == vendor) {
return ambapp_get_devname(ven->devices, id);
dev = ambapp_get_dev(ven->devices, id);
if (!dev)
return NULL;
return dev->name;
}
ven++;
}
return NULL;
}
char *ambapp_device_id2desc(int vendor, int id)
{
ambapp_vendor_devnames *ven = &vendors[0];
ambapp_device_name *dev;
while (ven->vendor_id > 0) {
if (ven->vendor_id == vendor) {
dev = ambapp_get_dev(ven->devices, id);
if (!dev)
return NULL;
return dev->desc;
}
ven++;
}
@ -134,101 +421,106 @@ char *ambapp_vendor_id2str(int vendor)
static char *unknown = "unknown";
char *ambapp_type_names[4] = {
/* 0 */ "UNUSED",
/* 1 */ "apb",
/* 2 */ "ahbmem",
/* 3 */ "ahbio"
};
/* Print one APB device */
void ambapp_print_apb(apbctrl_pp_dev * apb, ambapp_ahbdev * apbmst, int index)
void ambapp_print_apb(ambapp_apbdev *dev, int index)
{
char *dev_str, *ven_str;
int irq, ver, vendor, deviceid;
unsigned int address, apbmst_base, mask;
unsigned int freq;
vendor = amba_vendor(apb->conf);
deviceid = amba_device(apb->conf);
irq = amba_irq(apb->conf);
ver = amba_ver(apb->conf);
apbmst_base = apbmst->address[0] & LEON3_IO_AREA;
address = (apbmst_base | (((apb->bar & 0xfff00000) >> 12))) &
(((apb->bar & 0x0000fff0) << 4) | 0xfff00000);
mask = amba_membar_mask(apb->bar) << 8;
mask = ((~mask) & 0x000fffff) + 1;
ven_str = ambapp_vendor_id2str(vendor);
ven_str = ambapp_vendor_id2str(dev->vendor);
if (!ven_str) {
ven_str = unknown;
dev_str = unknown;
} else {
dev_str = ambapp_device_id2str(vendor, deviceid);
dev_str = ambapp_device_id2str(dev->vendor, dev->device);
if (!dev_str)
dev_str = unknown;
}
printf("0x%02x:0x%02x:0x%02x: %s %s\n"
/* Get Frequency of Core */
freq = ambapp_bus_freq(&ambapp_plb, dev->ahb_bus_index);
printf("0x%02x:0x%02x:0x%02x: %s %s (%dkHz)\n"
" apb: 0x%08x - 0x%08x\n"
" irq: %-2d (ver: %-2d)\n",
index, vendor, deviceid, ven_str, dev_str, address,
address + mask, irq, ver);
index, dev->vendor, dev->device, ven_str, dev_str, freq / 1000,
dev->address, dev->address + (dev->mask-1),
dev->irq, dev->ver);
}
void ambapp_print_ahb(ahbctrl_pp_dev * ahb, int index)
void ambapp_print_ahb(ambapp_ahbdev *dev, int index)
{
char *dev_str, *ven_str;
int irq, ver, vendor, deviceid;
unsigned int addr, mask;
int j;
char *dev_str, *ven_str, *type_str;
int i;
unsigned int freq;
vendor = amba_vendor(ahb->conf);
deviceid = amba_device(ahb->conf);
irq = amba_irq(ahb->conf);
ver = amba_ver(ahb->conf);
ven_str = ambapp_vendor_id2str(vendor);
ven_str = ambapp_vendor_id2str(dev->vendor);
if (!ven_str) {
ven_str = unknown;
dev_str = unknown;
} else {
dev_str = ambapp_device_id2str(vendor, deviceid);
dev_str = ambapp_device_id2str(dev->vendor, dev->device);
if (!dev_str)
dev_str = unknown;
}
printf("0x%02x:0x%02x:0x%02x: %s %s\n",
index, vendor, deviceid, ven_str, dev_str);
/* Get Frequency of Core */
freq = ambapp_bus_freq(&ambapp_plb, dev->ahb_bus_index);
for (j = 0; j < 4; j++) {
addr = amba_membar_start(ahb->bars[j]);
if (amba_membar_type(ahb->bars[j]) == 0)
printf("0x%02x:0x%02x:0x%02x: %s %s (%dkHz)\n",
index, dev->vendor, dev->device, ven_str, dev_str, freq / 1000);
for (i = 0; i < 4; i++) {
if (dev->type[i] == 0)
continue;
if (amba_membar_type(ahb->bars[j]) == AMBA_TYPE_AHBIO)
addr = AMBA_TYPE_AHBIO_ADDR(addr);
mask = amba_membar_mask(ahb->bars[j]) << 20;
printf(" mem: 0x%08x - 0x%08x\n", addr, addr + ((~mask) + 1));
type_str = ambapp_type_names[dev->type[i]];
printf(" %-7s: 0x%08x - 0x%08x\n", type_str, dev->address[i],
dev->address[i] + (dev->mask[i]-1));
}
printf(" irq: %-2d (ver: %d)\n", irq, ver);
printf(" irq: %-2d (ver: %d)\n", dev->irq, dev->ver);
}
int do_ambapp_print(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
{
int index;
ambapp_apbdev apbdev;
ambapp_ahbdev ahbdev;
/* Print AHB Masters */
puts("--------- AHB Masters ---------\n");
ambapp_apb_print = 0;
ambapp_ahb_print = 1;
ambapp_ahbmst_count(99, 99); /* Get vendor&device 99 = nonexistent... */
puts("\n--------- AHB Masters ---------\n");
index = 0;
while (ambapp_ahbmst_find(&ambapp_plb, 0, 0, index, &ahbdev) == 1) {
/* Found a AHB Master Device */
ambapp_print_ahb(&ahbdev, index);
index++;
}
/* Print AHB Slaves */
puts("--------- AHB Slaves ---------\n");
ambapp_ahbslv_count(99, 99); /* Get vendor&device 99 = nonexistent... */
puts("\n--------- AHB Slaves ---------\n");
index = 0;
while (ambapp_ahbslv_find(&ambapp_plb, 0, 0, index, &ahbdev) == 1) {
/* Found a AHB Slave Device */
ambapp_print_ahb(&ahbdev, index);
index++;
}
/* Print APB Slaves */
puts("--------- APB Slaves ---------\n");
ambapp_apb_print = 1;
ambapp_ahb_print = 0;
ambapp_apb_count(99, 99); /* Get vendor&device 99 = nonexistent... */
puts("\n--------- APB Slaves ---------\n");
index = 0;
while (ambapp_apb_find(&ambapp_plb, 0, 0, index, &apbdev) == 1) {
/* Found a APB Slave Device */
ambapp_print_apb(&apbdev, index);
index++;
}
/* Reset, no futher printing */
ambapp_apb_print = 0;
ambapp_ahb_print = 0;
puts("\n");
return 0;
}
@ -240,16 +532,18 @@ int ambapp_init_reloc(void)
while (vend->vendor_id && vend->name) {
vend->name = (char *)((unsigned int)vend->name + gd->reloc_off);
vend->devices =
(ambapp_device_name *) ((unsigned int)vend->devices +
gd->reloc_off);;
vend->desc = (char *)((unsigned int)vend->desc + gd->reloc_off);
vend->devices = (ambapp_device_name *)
((unsigned int)vend->devices + gd->reloc_off);
dev = vend->devices;
vend++;
if (!dev)
continue;
while (dev->device_id && dev->name) {
dev->name =
(char *)((unsigned int)dev->name + gd->reloc_off);;
(char *)((unsigned int)dev->name + gd->reloc_off);
dev->desc =
(char *)((unsigned int)dev->desc + gd->reloc_off);
dev++;
}
}

15
drivers/net/greth.c
View File

@ -34,6 +34,13 @@
#define GRETH_PHY_ADR_DEFAULT 0
#endif
/* Let board select which GRETH to use as network interface, set
* this to zero if only one GRETH is available.
*/
#ifndef CONFIG_SYS_GRLIB_GRETH_INDEX
#define CONFIG_SYS_GRLIB_GRETH_INDEX 0
#endif
/* ByPass Cache when reading regs */
#define GRETH_REGLOAD(addr) SPARC_NOCACHE_READ(addr)
/* Write-through cache ==> no bypassing needed on writes */
@ -593,8 +600,12 @@ int greth_initialize(bd_t * bis)
debug("Scanning for GRETH\n");
/* Find Device & IRQ via AMBA Plug&Play information */
if (ambapp_apb_first(VENDOR_GAISLER, GAISLER_ETHMAC, &apbdev) != 1) {
/* Find Device & IRQ via AMBA Plug&Play information,
* CONFIG_SYS_GRLIB_GRETH_INDEX select which GRETH if multiple
* GRETHs in system.
*/
if (ambapp_apb_find(&ambapp_plb, VENDOR_GAISLER, GAISLER_ETHMAC,
CONFIG_SYS_GRLIB_GRETH_INDEX, &apbdev) != 1) {
return -1; /* GRETH not found */
}

385
include/ambapp.h
View File

@ -3,8 +3,8 @@
* the APB bus, also freely available in GRLIB at
* www.gaisler.com.
*
* (C) Copyright 2007
* Daniel Hellstrom, Gaisler Research, daniel@gaisler.com.
* (C) Copyright 2009, 2015
* Daniel Hellstrom, Cobham Gaisler, daniel@gaisler.com.
*
* SPDX-License-Identifier: GPL-2.0+
*/
@ -12,116 +12,136 @@
#ifndef __AMBAPP_H__
#define __AMBAPP_H__
/* Default location of Plug&Play info
* normally 0xfffff000 for AHB masters
* and 0xfffff800 for AHB slaves.
* Normally no need to change this.
*/
#define LEON3_IO_AREA 0xfff00000
#define LEON3_CONF_AREA 0xff000
#define LEON3_AHB_SLAVE_CONF_AREA (1 << 11)
/* Max devices this software will support */
#define LEON3_AHB_MASTERS 16
#define LEON3_AHB_SLAVES 16
/*#define LEON3_APB_MASTERS 1*/ /* Number of APB buses that has Plug&Play */
#define LEON3_APB_SLAVES 16 /* Total number of APB slaves per APB bus */
/* Vendor codes */
#define VENDOR_GAISLER 1
#define VENDOR_PENDER 2
#define VENDOR_ESA 4
#define VENDOR_ASTRIUM 6
#define VENDOR_OPENCHIP 7
#define VENDOR_OPENCORES 8
#define VENDOR_CONTRIB 9
#define VENDOR_EONIC 11
#define VENDOR_RADIONOR 15
#define VENDOR_GLEICHMANN 16
#define VENDOR_MENTA 17
#define VENDOR_SUN 19
#define VENDOR_EMBEDDIT 234
#define VENDOR_CAL 202
/* Gaisler Research device id's */
#define GAISLER_LEON3 0x003
#define GAISLER_LEON3DSU 0x004
#define GAISLER_ETHAHB 0x005
#define GAISLER_APBMST 0x006
#define GAISLER_AHBUART 0x007
#define GAISLER_SRCTRL 0x008
#define GAISLER_SDCTRL 0x009
#define GAISLER_APBUART 0x00C
#define GAISLER_IRQMP 0x00D
#define GAISLER_AHBRAM 0x00E
#define GAISLER_GPTIMER 0x011
#define GAISLER_PCITRG 0x012
#define GAISLER_PCISBRG 0x013
#define GAISLER_PCIFBRG 0x014
#define GAISLER_PCITRACE 0x015
#define GAISLER_PCIDMA 0x016
#define GAISLER_AHBTRACE 0x017
#define GAISLER_ETHDSU 0x018
#define GAISLER_PIOPORT 0x01A
#define GAISLER_AHBJTAG 0x01c
#define GAISLER_SPW 0x01f
#define GAISLER_ATACTRL 0x024
#define GAISLER_VGA 0x061
#define GAISLER_KBD 0X060
#define GAISLER_ETHMAC 0x01D
#define GAISLER_DDRSPA 0x025
#define GAISLER_EHCI 0x026
#define GAISLER_UHCI 0x027
#define GAISLER_SPW2 0x029
#define GAISLER_DDR2SPA 0x02E
#define GAISLER_AHBSTAT 0x052
#define GAISLER_FTMCTRL 0x054
#define GAISLER_L2TIME 0xffd /* internal device: leon2 timer */
#define GAISLER_L2C 0xffe /* internal device: leon2compat */
#define GAISLER_PLUGPLAY 0xfff /* internal device: plug & play configarea */
/* European Space Agency device id's */
#define ESA_LEON2 0x2
#define ESA_MCTRL 0xF
/* Opencores device id's */
#define OPENCORES_PCIBR 0x4
#define OPENCORES_ETHMAC 0x5
/* Vendor codes */
/*
*
* Macros for manipulating Configuration registers
*
*/
#define amba_vendor(x) (((x) >> 24) & 0xff)
#define amba_device(x) (((x) >> 12) & 0xfff)
#define amba_membar_start(mbar) \
(((mbar) & 0xfff00000) & (((mbar) & 0xfff0) << 16))
#define amba_iobar_start(base, iobar) \
((base) | ((((iobar) & 0xfff00000)>>12) & (((iobar) & 0xfff0)<<4)) )
#define amba_irq(conf) ((conf) & 0xf)
#define amba_ver(conf) (((conf)>>5) & 0x1f)
#define amba_membar_type(mbar) ((mbar) & 0xf)
#define amba_membar_mask(mbar) (((mbar)>>4) & 0xfff)
#define AMBA_TYPE_APBIO 0x1
#define AMBA_TYPE_MEM 0x2
#define AMBA_TYPE_AHBIO 0x3
#define AMBA_TYPE_AHBIO_ADDR(addr) (LEON3_IO_AREA | ((addr) >> 12))
#include <ambapp_ids.h>
#ifndef __ASSEMBLER__
/* Structures used to access Plug&Play information directly */
struct ambapp_pnp_ahb {
const unsigned int id; /* VENDOR, DEVICE, VER, IRQ, */
const unsigned int custom[3];
const unsigned int mbar[4]; /* MASK, ADDRESS, TYPE,
* CACHABLE/PREFETCHABLE */
};
struct ambapp_pnp_apb {
const unsigned int id; /* VENDOR, DEVICE, VER, IRQ, */
const unsigned int iobar; /* MASK, ADDRESS, TYPE,
* CACHABLE/PREFETCHABLE */
};
/* AMBA Plug&Play AHB Masters & Slaves information locations
* Max devices is 64 supported by HW, however often only 16
* are used.
*/
struct ambapp_pnp_info {
struct ambapp_pnp_ahb masters[64];
struct ambapp_pnp_ahb slaves[63];
const unsigned int unused[4];
const unsigned int systemid[4];
};
/* Describes a AMBA PnP bus */
struct ambapp_bus {
int buses; /* Number of buses */
unsigned int ioareas[6]; /* PnP I/O AREAs of AHB buses */
unsigned int freq; /* Frequency of bus0 [Hz] */
};
/* Processor Local AMBA bus */
extern struct ambapp_bus ambapp_plb;
/* Get Bus frequency of a certain AMBA bus */
extern unsigned int ambapp_bus_freq(
struct ambapp_bus *abus,
int ahb_bus_index
);
/* AMBA PnP information of a APB Device */
typedef struct {
unsigned int vendor;
unsigned int device;
unsigned char irq;
unsigned char ver;
unsigned int address;
unsigned int mask;
int ahb_bus_index;
} ambapp_apbdev;
/* AMBA PnP information of a AHB Device */
typedef struct {
unsigned int vendor;
unsigned int device;
unsigned char irq;
unsigned char ver;
unsigned int userdef[3];
unsigned int address[4];
unsigned int mask[4];
int type[4];
int ahb_bus_index;
} ambapp_ahbdev;
/* Scan AMBA Bus for AHB Bridges */
extern void ambapp_bus_init(
unsigned int ioarea,
unsigned int freq,
struct ambapp_bus *abus);
/* Find APB Slave device by index using breath first search.
*
* When vendor and device are both set to zero, any device
* with a non-zero device ID will match the search. It may be
* useful when processing all devices on a AMBA bus.
*/
extern int ambapp_apb_find(
struct ambapp_bus *abus,
int vendor,
int device,
int index,
ambapp_apbdev *dev
);
/* Find AHB Master device by index using breath first search.
*
* When vendor and device are both set to zero, any device
* with a non-zero device ID will match the search. It may be
* useful when processing all devices on a AMBA bus.
*/
extern int ambapp_ahbmst_find(
struct ambapp_bus *abus,
int vendor,
int device,
int index,
ambapp_ahbdev *dev
);
/* Find AHB Slave device by index using breath first search.
*
* When vendor and device are both set to zero, any device
* with a non-zero device ID will match the search. It may be
* useful when processing all devices on a AMBA bus.
*/
extern int ambapp_ahbslv_find(
struct ambapp_bus *abus,
int vendor,
int device,
int index,
ambapp_ahbdev *dev
);
/* Return number of APB Slave devices of a certain ID (VENDOR:DEVICE)
* zero is returned if no devices was found.
*/
extern int ambapp_apb_count(struct ambapp_bus *abus, int vendor, int device);
/* Return number of AHB Master devices of a certain ID (VENDOR:DEVICE)
* zero is returned if no devices was found.
*/
extern int ambapp_ahbmst_count(struct ambapp_bus *abus, int vendor, int device);
/* Return number of AHB Slave devices of a certain ID (VENDOR:DEVICE)
* zero is returned if no devices was found.
*/
extern int ambapp_ahbslv_count(struct ambapp_bus *abus, int vendor, int device);
#ifdef CONFIG_CMD_AMBAPP
@ -135,109 +155,72 @@ char *ambapp_device_id2str(int vendor, int id);
/* Return name of vendor */
char *ambapp_vendor_id2str(int vendor);
/* Return description of a device */
char *ambapp_device_id2desc(int vendor, int id);
#endif
/*
* Types and structure used for AMBA Plug & Play bus scanning
#endif /* defined(__ASSEMBLER__) */
#define AMBA_DEFAULT_IOAREA 0xfff00000
#define AMBA_CONF_AREA 0xff000
#define AMBA_AHB_SLAVE_CONF_AREA 0x800
#define DEV_NONE 0
#define DEV_AHB_MST 1
#define DEV_AHB_SLV 2
#define DEV_APB_SLV 3
#define AMBA_TYPE_APBIO 0x1
#define AMBA_TYPE_MEM 0x2
#define AMBA_TYPE_AHBIO 0x3
/* ID layout for APB and AHB devices */
#define AMBA_PNP_ID(vendor, device) (((vendor)<<24) | ((device)<<12))
/* APB Slave PnP layout definitions */
#define AMBA_APB_ID_OFS (0*4)
#define AMBA_APB_IOBAR_OFS (1*4)
#define AMBA_APB_CONF_LENGH (2*4)
/* AHB Master/Slave layout PnP definitions */
#define AMBA_AHB_ID_OFS (0*4)
#define AMBA_AHB_CUSTOM0_OFS (1*4)
#define AMBA_AHB_CUSTOM1_OFS (2*4)
#define AMBA_AHB_CUSTOM2_OFS (3*4)
#define AMBA_AHB_MBAR0_OFS (4*4)
#define AMBA_AHB_MBAR1_OFS (5*4)
#define AMBA_AHB_MBAR2_OFS (6*4)
#define AMBA_AHB_MBAR3_OFS (7*4)
#define AMBA_AHB_CONF_LENGH (8*4)
/* Macros for extracting information from AMBA PnP information
* registers.
*/
/* AMBA Plug&Play AHB information layout */
typedef struct {
unsigned int conf;
unsigned int userdef[3];
unsigned int bars[4];
} ahbctrl_pp_dev;
#define amba_vendor(x) (((x) >> 24) & 0xff)
/* Prototypes for scanning AMBA Plug&Play bus for AMBA
* i) AHB Masters
* ii) AHB Slaves
* iii) APB Slaves (APB MST is a AHB Slave)
*/
#define amba_device(x) (((x) >> 12) & 0xfff)
typedef struct {
unsigned char irq;
unsigned char ver;
unsigned int address;
} ambapp_apbdev;
#define amba_irq(conf) ((conf) & 0x1f)
typedef struct {
unsigned char irq;
unsigned char ver;
unsigned int userdef[3];
unsigned int address[4];
} ambapp_ahbdev;
#define amba_ver(conf) (((conf)>>5) & 0x1f)
/* AMBA Plug&Play AHB Masters & Slaves information locations
* Max devices is 64 supported by HW, however often only 8
* are used.
*/
typedef struct {
ahbctrl_pp_dev masters[64];
ahbctrl_pp_dev slaves[64];
} ahbctrl_info;
#define amba_iobar_start(base, iobar) \
((base) | ((((iobar) & 0xfff00000)>>12) & (((iobar) & 0xfff0)<<4)))
/* AMBA Plug&Play AHB information layout */
typedef struct {
unsigned int conf;
unsigned int bar;
} apbctrl_pp_dev;
#define amba_membar_start(mbar) \
(((mbar) & 0xfff00000) & (((mbar) & 0xfff0) << 16))
/* All functions return the number of found devices
* 0 = no devices found
*/
#define amba_membar_type(mbar) ((mbar) & 0xf)
/****************************** APB SLAVES ******************************/
int ambapp_apb_count(unsigned int vendor, unsigned int driver);
#define amba_membar_mask(mbar) (((mbar) >> 4) & 0xfff)
int ambapp_apb_first(unsigned int vendor,
unsigned int driver, ambapp_apbdev * dev);
#define amba_ahbio_adr(addr, base_ioarea) \
((unsigned int)(base_ioarea) | ((addr) >> 12))
int ambapp_apb_next(unsigned int vendor,
unsigned int driver, ambapp_apbdev * dev, int index);
int ambapp_apbs_first(unsigned int vendor,
unsigned int driver, ambapp_apbdev * dev, int max_cnt);
/****************************** AHB MASTERS ******************************/
int ambapp_ahbmst_count(unsigned int vendor, unsigned int driver);
int ambapp_ahbmst_first(unsigned int vendor,
unsigned int driver, ambapp_ahbdev * dev);
int ambapp_ahbmst_next(unsigned int vendor,
unsigned int driver, ambapp_ahbdev * dev, int index);
int ambapp_ahbmsts_first(unsigned int vendor,
unsigned int driver, ambapp_ahbdev * dev, int max_cnt);
/****************************** AHB SLAVES ******************************/
int ambapp_ahbslv_count(unsigned int vendor, unsigned int driver);
int ambapp_ahbslv_first(unsigned int vendor,
unsigned int driver, ambapp_ahbdev * dev);
int ambapp_ahbslv_next(unsigned int vendor,
unsigned int driver, ambapp_ahbdev * dev, int index);
int ambapp_ahbslvs_first(unsigned int vendor,
unsigned int driver, ambapp_ahbdev * dev, int max_cnt);
/*************************** AHB/APB only regs functions *************************
* During start up, no memory is available we can use the simplified functions
* to get to the memory controller.
*
* Functions uses no stack/memory, only registers.
*/
unsigned int ambapp_apb_next_nomem(register unsigned int vendor, /* Plug&Play Vendor ID */
register unsigned int driver, /* Plug&Play Device ID */
register int index);
ahbctrl_pp_dev *ambapp_ahb_next_nomem(register unsigned int vendor, /* Plug&Play Vendor ID */
register unsigned int driver, /* Plug&Play Device ID */
register unsigned int opts, /* scan for AHB 1=slave, 0=masters */
register int index);
unsigned int ambapp_ahb_get_info(ahbctrl_pp_dev * ahb, int info);
#define amba_apb_mask(iobar) ((~(amba_membar_mask(iobar)<<8) & 0x000fffff) + 1)
/*************************** AMBA Plug&Play device register MAPS *****************/
@ -291,6 +274,8 @@ unsigned int ambapp_ahb_get_info(ahbctrl_pp_dev * ahb, int info);
#define LEON_REG_PS2_CTRL_RI 0x00000004 /* Keyboard receive interrupt */
#define LEON_REG_PS2_CTRL_TI 0x00000008 /* Keyboard transmit interrupt */
#ifndef __ASSEMBLER__
typedef struct {
volatile unsigned int ilevel;
volatile unsigned int ipend;

239
include/ambapp_ids.h Normal file
View File

@ -0,0 +1,239 @@
/* AMBA Plug & Play Bus Vendor and Device IDs.
*
* (C) Copyright 2010, 2015
* Daniel Hellstrom, Cobham Gaisler, daniel@gaisler.com.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __AMBAPP_IDS_H__
#define __AMBAPP_IDS_H__
/* Vendor ID defines */
#define VENDOR_GAISLER 0x01
#define VENDOR_PENDER 0x02
#define VENDOR_ESA 0x04
#define VENDOR_ASTRIUM 0x06
#define VENDOR_OPENCHIP 0x07
#define VENDOR_OPENCORES 0x08
#define VENDOR_CONTRIB 0x09
#define VENDOR_EONIC 0x0b
#define VENDOR_RADIONOR 0x0f
#define VENDOR_GLEICHMANN 0x10
#define VENDOR_MENTA 0x11
#define VENDOR_SUN 0x13
#define VENDOR_MOVIDIA 0x14
#define VENDOR_ORBITA 0x17
#define VENDOR_SYNOPSYS 0x21
#define VENDOR_NASA 0x22
#define VENDOR_CAL 0xca
#define VENDOR_EMBEDDIT 0xea
#define VENDOR_CETON 0xcb
#define VENDOR_ACTEL 0xac
#define VENDOR_APPLECORE 0xae
/* Aeroflex Gaisler device ID defines */
#define GAISLER_LEON2DSU 0x002
#define GAISLER_LEON3 0x003
#define GAISLER_LEON3DSU 0x004
#define GAISLER_ETHAHB 0x005
#define GAISLER_APBMST 0x006
#define GAISLER_AHBUART 0x007
#define GAISLER_SRCTRL 0x008
#define GAISLER_SDCTRL 0x009
#define GAISLER_SSRCTRL 0x00a
#define GAISLER_APBUART 0x00c
#define GAISLER_IRQMP 0x00d
#define GAISLER_AHBRAM 0x00e
#define GAISLER_AHBDPRAM 0x00f
#define GAISLER_GPTIMER 0x011
#define GAISLER_PCITRG 0x012
#define GAISLER_PCISBRG 0x013
#define GAISLER_PCIFBRG 0x014
#define GAISLER_PCITRACE 0x015
#define GAISLER_DMACTRL 0x016
#define GAISLER_AHBTRACE 0x017
#define GAISLER_DSUCTRL 0x018
#define GAISLER_CANAHB 0x019
#define GAISLER_GPIO 0x01a
#define GAISLER_AHBROM 0x01b
#define GAISLER_AHBJTAG 0x01c
#define GAISLER_ETHMAC 0x01d
#define GAISLER_SWNODE 0x01e
#define GAISLER_SPW 0x01f
#define GAISLER_AHB2AHB 0x020
#define GAISLER_USBDC 0x021
#define GAISLER_USB_DCL 0x022
#define GAISLER_DDRMP 0x023
#define GAISLER_ATACTRL 0x024
#define GAISLER_DDRSP 0x025
#define GAISLER_EHCI 0x026
#define GAISLER_UHCI 0x027
#define GAISLER_I2CMST 0x028
#define GAISLER_SPW2 0x029
#define GAISLER_AHBDMA 0x02a
#define GAISLER_NUHOSP3 0x02b
#define GAISLER_CLKGATE 0x02c
#define GAISLER_SPICTRL 0x02d
#define GAISLER_DDR2SP 0x02e
#define GAISLER_SLINK 0x02f
#define GAISLER_GRTM 0x030
#define GAISLER_GRTC 0x031
#define GAISLER_GRPW 0x032
#define GAISLER_GRCTM 0x033
#define GAISLER_GRHCAN 0x034
#define GAISLER_GRFIFO 0x035
#define GAISLER_GRADCDAC 0x036
#define GAISLER_GRPULSE 0x037
#define GAISLER_GRTIMER 0x038
#define GAISLER_AHB2PP 0x039
#define GAISLER_GRVERSION 0x03a
#define GAISLER_APB2PW 0x03b
#define GAISLER_PW2APB 0x03c
#define GAISLER_GRCAN 0x03d
#define GAISLER_I2CSLV 0x03e
#define GAISLER_U16550 0x03f
#define GAISLER_AHBMST_EM 0x040
#define GAISLER_AHBSLV_EM 0x041
#define GAISLER_GRTESTMOD 0x042
#define GAISLER_ASCS 0x043
#define GAISLER_IPMVBCTRL 0x044
#define GAISLER_SPIMCTRL 0x045
#define GAISLER_LEON4 0x048
#define GAISLER_LEON4DSU 0x049
#define GAISLER_PWM 0x04a
#define GAISLER_L2CACHE 0x04b
#define GAISLER_SDCTRL64 0x04c
#define GAISLER_FTAHBRAM 0x050
#define GAISLER_FTSRCTRL 0x051
#define GAISLER_AHBSTAT 0x052
#define GAISLER_LEON3FT 0x053
#define GAISLER_FTMCTRL 0x054
#define GAISLER_FTSDCTRL 0x055
#define GAISLER_FTSRCTRL8 0x056
#define GAISLER_APBPS2 0x060
#define GAISLER_VGACTRL 0x061
#define GAISLER_LOGAN 0x062
#define GAISLER_SVGACTRL 0x063
#define GAISLER_T1AHB 0x064
#define GAISLER_MP7WRAP 0x065
#define GAISLER_GRSYSMON 0x066
#define GAISLER_GRACECTRL 0x067
#define GAISLER_ATAHBSLV 0x068
#define GAISLER_ATAHBMST 0x069
#define GAISLER_ATAPBSLV 0x06a
#define GAISLER_B1553BC 0x070
#define GAISLER_B1553RT 0x071
#define GAISLER_B1553BRM 0x072
#define GAISLER_AES 0x073
#define GAISLER_ECC 0x074
#define GAISLER_PCIF 0x075
#define GAISLER_CLKMOD 0x076
#define GAISLER_HAPSTRAK 0x077
#define GAISLER_TEST_1X2 0x078
#define GAISLER_WILD2AHB 0x079
#define GAISLER_BIO1 0x07a
#define GAISLER_SATCAN 0x080
#define GAISLER_CANMUX 0x081
#define GAISLER_GRTMRX 0x082
#define GAISLER_GRTCTX 0x083
#define GAISLER_GRTMDESC 0x084
#define GAISLER_GRTMVC 0x085
#define GAISLER_GEFFE 0x086
#define GAISLER_GPREG 0x087
#define GAISLER_GRTMPAHB 0x088
/* European Space Agency device ID defines */
#define ESA_LEON2 0x002
#define ESA_LEON2APB 0x003
#define ESA_IRQ 0x005
#define ESA_TIMER 0x006
#define ESA_UART 0x007
#define ESA_CFG 0x008
#define ESA_IO 0x009
#define ESA_MCTRL 0x00f
#define ESA_PCIARB 0x010
#define ESA_HURRICANE 0x011
#define ESA_SPW_RMAP 0x012
#define ESA_AHBUART 0x013
#define ESA_SPWA 0x014
#define ESA_BOSCHCAN 0x015
#define ESA_IRQ2 0x016
#define ESA_AHBSTAT 0x017
#define ESA_WPROT 0x018
#define ESA_WPROT2 0x019
#define ESA_PDEC3AMBA 0x020
#define ESA_PTME3AMBA 0x021
/* OpenChip device ID defines */
#define OPENCHIP_APBGPIO 0x001
#define OPENCHIP_APBI2C 0x002
#define OPENCHIP_APBSPI 0x003
#define OPENCHIP_APBCHARLCD 0x004
#define OPENCHIP_APBPWM 0x005
#define OPENCHIP_APBPS2 0x006
#define OPENCHIP_APBMMCSD 0x007
#define OPENCHIP_APBNAND 0x008
#define OPENCHIP_APBLPC 0x009
#define OPENCHIP_APBCF 0x00a
#define OPENCHIP_APBSYSACE 0x00b
#define OPENCHIP_APB1WIRE 0x00c
#define OPENCHIP_APBJTAG 0x00d
#define OPENCHIP_APBSUI 0x00e
/* Various contributions device ID defines */
#define CONTRIB_CORE1 0x001
#define CONTRIB_CORE2 0x002
/* Gleichmann Electronics device ID defines */
#define GLEICHMANN_CUSTOM 0x001
#define GLEICHMANN_GEOLCD01 0x002
#define GLEICHMANN_DAC 0x003
#define GLEICHMANN_HPI 0x004
#define GLEICHMANN_SPI 0x005
#define GLEICHMANN_HIFC 0x006
#define GLEICHMANN_ADCDAC 0x007
#define GLEICHMANN_SPIOC 0x008
#define GLEICHMANN_AC97 0x009
/* Sun Microsystems device ID defines */
#define SUN_T1 0x001
#define SUN_S1 0x011
/* Orbita device ID defines */
#define ORBITA_1553B 0x001
#define ORBITA_429 0x002
#define ORBITA_SPI 0x003
#define ORBITA_I2C 0x004
#define ORBITA_SMARTCARD 0x064
#define ORBITA_SDCARD 0x065
#define ORBITA_UART16550 0x066
#define ORBITA_CRYPTO 0x067
#define ORBITA_SYSIF 0x068
#define ORBITA_PIO 0x069
#define ORBITA_RTC 0x0c8
#define ORBITA_COLORLCD 0x12c
#define ORBITA_PCI 0x190
#define ORBITA_DSP 0x1f4
#define ORBITA_USBHOST 0x258
#define ORBITA_USBDEV 0x2bc
/* NASA device ID defines */
#define NASA_EP32 0x001
/* CAL device ID defines */
#define CAL_DDRCTRL 0x188
/* Actel Corporation device ID defines */
#define ACTEL_COREMP7 0x001
/* AppleCore device ID defines */
#define APPLECORE_UTLEON3 0x001
#define APPLECORE_UTLEON3DSU 0x002
/* Opencores device id's */
#define OPENCORES_PCIBR 0x4
#define OPENCORES_ETHMAC 0x5
#endif