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310018d52e
linux/arch/arm/mach-omap2/board-n8x0.c
Tony Lindgren 310018d52e ARM: OMAP2+: Fix MUSB ifdefs for platform init code 
Commit 62285963 (usb: musb: drop a gigantic amount of ifdeferry)
got rid of a bunch of ifdefs in the MUSB code. Looks like the
platform init code is still using these dropped defines though,
which in many cases results the board defaulting always to host
mode.

Currently the situation is that USB_MUSB_HDRC is the main
Kconfig option with additional USB_GADGET_MUSB_HDRC so only
these two should be used to select between host and OTG mode.

Fix the situation for omaps. The following users should fix the
platform init code in a similar way:

Dropped Kconfig option          Current users

USB_MUSB_OTG                    blackfin, davinci, not in Kconfigs
USB_MUSB_PERIPHERAL             davinci, not in Kconfigs
USB_MUSB_HOST                   davinci, not in Kconfigs
USB_MUSB_HDRC_HCD               blackfin, not in Kconfigs
USB_MUSB_OTG                    blackfin, not in Kconfigs

Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: linux-usb@vger.kernel.org
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-06-20 07:18:15 -07:00

725 lines
16 KiB
C
Raw Blame History

/*
* linux/arch/arm/mach-omap2/board-n8x0.c
*
* Copyright (C) 2005-2009 Nokia Corporation
* Author: Juha Yrjola <juha.yrjola@nokia.com>
*
* Modified from mach-omap2/board-generic.c
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/stddef.h>
#include <linux/i2c.h>
#include <linux/spi/spi.h>
#include <linux/usb/musb.h>
#include <sound/tlv320aic3x.h>
#include <asm/mach/arch.h>
#include <asm/mach-types.h>
#include <plat/board.h>
#include "common.h"
#include <plat/menelaus.h>
#include <mach/irqs.h>
#include <plat/mcspi.h>
#include <plat/onenand.h>
#include <plat/mmc.h>
#include <plat/serial.h>
#include "mux.h"
#define TUSB6010_ASYNC_CS 1
#define TUSB6010_SYNC_CS 4
#define TUSB6010_GPIO_INT 58
#define TUSB6010_GPIO_ENABLE 0
#define TUSB6010_DMACHAN 0x3f
#if defined(CONFIG_USB_MUSB_TUSB6010) || defined(CONFIG_USB_MUSB_TUSB6010_MODULE)
/*
* Enable or disable power to TUSB6010. When enabling, turn on 3.3 V and
* 1.5 V voltage regulators of PM companion chip. Companion chip will then
* provide then PGOOD signal to TUSB6010 which will release it from reset.
*/
static int tusb_set_power(int state)
{
int i, retval = 0;
if (state) {
gpio_set_value(TUSB6010_GPIO_ENABLE, 1);
msleep(1);
/* Wait until TUSB6010 pulls INT pin down */
i = 100;
while (i && gpio_get_value(TUSB6010_GPIO_INT)) {
msleep(1);
i--;
}
if (!i) {
printk(KERN_ERR "tusb: powerup failed\n");
retval = -ENODEV;
}
} else {
gpio_set_value(TUSB6010_GPIO_ENABLE, 0);
msleep(10);
}
return retval;
}
static struct musb_hdrc_config musb_config = {
.multipoint = 1,
.dyn_fifo = 1,
.num_eps = 16,
.ram_bits = 12,
};
static struct musb_hdrc_platform_data tusb_data = {
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
.mode = MUSB_OTG,
#else
.mode = MUSB_HOST,
#endif
.set_power = tusb_set_power,
.min_power = 25, /* x2 = 50 mA drawn from VBUS as peripheral */
.power = 100, /* Max 100 mA VBUS for host mode */
.config = &musb_config,
};
static void __init n8x0_usb_init(void)
{
int ret = 0;
static char announce[] __initdata = KERN_INFO "TUSB 6010\n";
/* PM companion chip power control pin */
ret = gpio_request_one(TUSB6010_GPIO_ENABLE, GPIOF_OUT_INIT_LOW,
"TUSB6010 enable");
if (ret != 0) {
printk(KERN_ERR "Could not get TUSB power GPIO%i\n",
TUSB6010_GPIO_ENABLE);
return;
}
tusb_set_power(0);
ret = tusb6010_setup_interface(&tusb_data, TUSB6010_REFCLK_19, 2,
TUSB6010_ASYNC_CS, TUSB6010_SYNC_CS,
TUSB6010_GPIO_INT, TUSB6010_DMACHAN);
if (ret != 0)
goto err;
printk(announce);
return;
err:
gpio_free(TUSB6010_GPIO_ENABLE);
}
#else
static void __init n8x0_usb_init(void) {}
#endif /*CONFIG_USB_MUSB_TUSB6010 */
static struct omap2_mcspi_device_config p54spi_mcspi_config = {
.turbo_mode = 0,
};
static struct spi_board_info n800_spi_board_info[] __initdata = {
{
.modalias = "p54spi",
.bus_num = 2,
.chip_select = 0,
.max_speed_hz = 48000000,
.controller_data = &p54spi_mcspi_config,
},
};
#if defined(CONFIG_MTD_ONENAND_OMAP2) || \
defined(CONFIG_MTD_ONENAND_OMAP2_MODULE)
static struct mtd_partition onenand_partitions[] = {
{
.name = "bootloader",
.offset = 0,
.size = 0x20000,
.mask_flags = MTD_WRITEABLE, /* Force read-only */
},
{
.name = "config",
.offset = MTDPART_OFS_APPEND,
.size = 0x60000,
},
{
.name = "kernel",
.offset = MTDPART_OFS_APPEND,
.size = 0x200000,
},
{
.name = "initfs",
.offset = MTDPART_OFS_APPEND,
.size = 0x400000,
},
{
.name = "rootfs",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
},
};
static struct omap_onenand_platform_data board_onenand_data[] = {
{
.cs = 0,
.gpio_irq = 26,
.parts = onenand_partitions,
.nr_parts = ARRAY_SIZE(onenand_partitions),
.flags = ONENAND_SYNC_READ,
}
};
#endif
#if defined(CONFIG_MENELAUS) && \
(defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE))
/*
* On both N800 and N810, only the first of the two MMC controllers is in use.
* The two MMC slots are multiplexed via Menelaus companion chip over I2C.
* On N800, both slots are powered via Menelaus. On N810, only one of the
* slots is powered via Menelaus. The N810 EMMC is powered via GPIO.
*
* VMMC slot 1 on both N800 and N810
* VDCDC3_APE and VMCS2_APE slot 2 on N800
* GPIO23 and GPIO9 slot 2 EMMC on N810
*
*/
#define N8X0_SLOT_SWITCH_GPIO 96
#define N810_EMMC_VSD_GPIO 23
#define N810_EMMC_VIO_GPIO 9
static int slot1_cover_open;
static int slot2_cover_open;
static struct device *mmc_device;
static int n8x0_mmc_switch_slot(struct device *dev, int slot)
{
#ifdef CONFIG_MMC_DEBUG
dev_dbg(dev, "Choose slot %d\n", slot + 1);
#endif
gpio_set_value(N8X0_SLOT_SWITCH_GPIO, slot);
return 0;
}
static int n8x0_mmc_set_power_menelaus(struct device *dev, int slot,
int power_on, int vdd)
{
int mV;
#ifdef CONFIG_MMC_DEBUG
dev_dbg(dev, "Set slot %d power: %s (vdd %d)\n", slot + 1,
power_on ? "on" : "off", vdd);
#endif
if (slot == 0) {
if (!power_on)
return menelaus_set_vmmc(0);
switch (1 << vdd) {
case MMC_VDD_33_34:
case MMC_VDD_32_33:
case MMC_VDD_31_32:
mV = 3100;
break;
case MMC_VDD_30_31:
mV = 3000;
break;
case MMC_VDD_28_29:
mV = 2800;
break;
case MMC_VDD_165_195:
mV = 1850;
break;
default:
BUG();
}
return menelaus_set_vmmc(mV);
} else {
if (!power_on)
return menelaus_set_vdcdc(3, 0);
switch (1 << vdd) {
case MMC_VDD_33_34:
case MMC_VDD_32_33:
mV = 3300;
break;
case MMC_VDD_30_31:
case MMC_VDD_29_30:
mV = 3000;
break;
case MMC_VDD_28_29:
case MMC_VDD_27_28:
mV = 2800;
break;
case MMC_VDD_24_25:
case MMC_VDD_23_24:
mV = 2400;
break;
case MMC_VDD_22_23:
case MMC_VDD_21_22:
mV = 2200;
break;
case MMC_VDD_20_21:
mV = 2000;
break;
case MMC_VDD_165_195:
mV = 1800;
break;
default:
BUG();
}
return menelaus_set_vdcdc(3, mV);
}
return 0;
}
static void n810_set_power_emmc(struct device *dev,
int power_on)
{
dev_dbg(dev, "Set EMMC power %s\n", power_on ? "on" : "off");
if (power_on) {
gpio_set_value(N810_EMMC_VSD_GPIO, 1);
msleep(1);
gpio_set_value(N810_EMMC_VIO_GPIO, 1);
msleep(1);
} else {
gpio_set_value(N810_EMMC_VIO_GPIO, 0);
msleep(50);
gpio_set_value(N810_EMMC_VSD_GPIO, 0);
msleep(50);
}
}
static int n8x0_mmc_set_power(struct device *dev, int slot, int power_on,
int vdd)
{
if (machine_is_nokia_n800() || slot == 0)
return n8x0_mmc_set_power_menelaus(dev, slot, power_on, vdd);
n810_set_power_emmc(dev, power_on);
return 0;
}
static int n8x0_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode)
{
int r;
dev_dbg(dev, "Set slot %d bus mode %s\n", slot + 1,
bus_mode == MMC_BUSMODE_OPENDRAIN ? "open-drain" : "push-pull");
BUG_ON(slot != 0 && slot != 1);
slot++;
switch (bus_mode) {
case MMC_BUSMODE_OPENDRAIN:
r = menelaus_set_mmc_opendrain(slot, 1);
break;
case MMC_BUSMODE_PUSHPULL:
r = menelaus_set_mmc_opendrain(slot, 0);
break;
default:
BUG();
}
if (r != 0 && printk_ratelimit())
dev_err(dev, "MMC: unable to set bus mode for slot %d\n",
slot);
return r;
}
static int n8x0_mmc_get_cover_state(struct device *dev, int slot)
{
slot++;
BUG_ON(slot != 1 && slot != 2);
if (slot == 1)
return slot1_cover_open;
else
return slot2_cover_open;
}
static void n8x0_mmc_callback(void *data, u8 card_mask)
{
int bit, *openp, index;
if (machine_is_nokia_n800()) {
bit = 1 << 1;
openp = &slot2_cover_open;
index = 1;
} else {
bit = 1;
openp = &slot1_cover_open;
index = 0;
}
if (card_mask & bit)
*openp = 1;
else
*openp = 0;
#ifdef CONFIG_MMC_OMAP
omap_mmc_notify_cover_event(mmc_device, index, *openp);
#else
pr_warn("MMC: notify cover event not available\n");
#endif
}
static int n8x0_mmc_late_init(struct device *dev)
{
int r, bit, *openp;
int vs2sel;
mmc_device = dev;
r = menelaus_set_slot_sel(1);
if (r < 0)
return r;
if (machine_is_nokia_n800())
vs2sel = 0;
else
vs2sel = 2;
r = menelaus_set_mmc_slot(2, 0, vs2sel, 1);
if (r < 0)
return r;
n8x0_mmc_set_power(dev, 0, MMC_POWER_ON, 16); /* MMC_VDD_28_29 */
n8x0_mmc_set_power(dev, 1, MMC_POWER_ON, 16);
r = menelaus_set_mmc_slot(1, 1, 0, 1);
if (r < 0)
return r;
r = menelaus_set_mmc_slot(2, 1, vs2sel, 1);
if (r < 0)
return r;
r = menelaus_get_slot_pin_states();
if (r < 0)
return r;
if (machine_is_nokia_n800()) {
bit = 1 << 1;
openp = &slot2_cover_open;
} else {
bit = 1;
openp = &slot1_cover_open;
slot2_cover_open = 0;
}
/* All slot pin bits seem to be inversed until first switch change */
if (r == 0xf || r == (0xf & ~bit))
r = ~r;
if (r & bit)
*openp = 1;
else
*openp = 0;
r = menelaus_register_mmc_callback(n8x0_mmc_callback, NULL);
return r;
}
static void n8x0_mmc_shutdown(struct device *dev)
{
int vs2sel;
if (machine_is_nokia_n800())
vs2sel = 0;
else
vs2sel = 2;
menelaus_set_mmc_slot(1, 0, 0, 0);
menelaus_set_mmc_slot(2, 0, vs2sel, 0);
}
static void n8x0_mmc_cleanup(struct device *dev)
{
menelaus_unregister_mmc_callback();
gpio_free(N8X0_SLOT_SWITCH_GPIO);
if (machine_is_nokia_n810()) {
gpio_free(N810_EMMC_VSD_GPIO);
gpio_free(N810_EMMC_VIO_GPIO);
}
}
/*
* MMC controller1 has two slots that are multiplexed via I2C.
* MMC controller2 is not in use.
*/
static struct omap_mmc_platform_data mmc1_data = {
.nr_slots = 2,
.switch_slot = n8x0_mmc_switch_slot,
.init = n8x0_mmc_late_init,
.cleanup = n8x0_mmc_cleanup,
.shutdown = n8x0_mmc_shutdown,
.max_freq = 24000000,
.dma_mask = 0xffffffff,
.slots[0] = {
.wires = 4,
.set_power = n8x0_mmc_set_power,
.set_bus_mode = n8x0_mmc_set_bus_mode,
.get_cover_state = n8x0_mmc_get_cover_state,
.ocr_mask = MMC_VDD_165_195 | MMC_VDD_30_31 |
MMC_VDD_32_33 | MMC_VDD_33_34,
.name = "internal",
},
.slots[1] = {
.set_power = n8x0_mmc_set_power,
.set_bus_mode = n8x0_mmc_set_bus_mode,
.get_cover_state = n8x0_mmc_get_cover_state,
.ocr_mask = MMC_VDD_165_195 | MMC_VDD_20_21 |
MMC_VDD_21_22 | MMC_VDD_22_23 |
MMC_VDD_23_24 | MMC_VDD_24_25 |
MMC_VDD_27_28 | MMC_VDD_28_29 |
MMC_VDD_29_30 | MMC_VDD_30_31 |
MMC_VDD_32_33 | MMC_VDD_33_34,
.name = "external",
},
};
static struct omap_mmc_platform_data *mmc_data[OMAP24XX_NR_MMC];
static struct gpio n810_emmc_gpios[] __initdata = {
{ N810_EMMC_VSD_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vddf" },
{ N810_EMMC_VIO_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vdd" },
};
static void __init n8x0_mmc_init(void)
{
int err;
if (machine_is_nokia_n810()) {
mmc1_data.slots[0].name = "external";
/*
* Some Samsung Movinand chips do not like open-ended
* multi-block reads and fall to braind-dead state
* while doing so. Reducing the number of blocks in
* the transfer or delays in clock disable do not help
*/
mmc1_data.slots[1].name = "internal";
mmc1_data.slots[1].ban_openended = 1;
}
err = gpio_request_one(N8X0_SLOT_SWITCH_GPIO, GPIOF_OUT_INIT_LOW,
"MMC slot switch");
if (err)
return;
if (machine_is_nokia_n810()) {
err = gpio_request_array(n810_emmc_gpios,
ARRAY_SIZE(n810_emmc_gpios));
if (err) {
gpio_free(N8X0_SLOT_SWITCH_GPIO);
return;
}
}
mmc_data[0] = &mmc1_data;
omap242x_init_mmc(mmc_data);
}
#else
void __init n8x0_mmc_init(void)
{
}
#endif /* CONFIG_MMC_OMAP */
#ifdef CONFIG_MENELAUS
static int n8x0_auto_sleep_regulators(void)
{
u32 val;
int ret;
val = EN_VPLL_SLEEP | EN_VMMC_SLEEP \
| EN_VAUX_SLEEP | EN_VIO_SLEEP \
| EN_VMEM_SLEEP | EN_DC3_SLEEP \
| EN_VC_SLEEP | EN_DC2_SLEEP;
ret = menelaus_set_regulator_sleep(1, val);
if (ret < 0) {
printk(KERN_ERR "Could not set regulators to sleep on "
"menelaus: %u\n", ret);
return ret;
}
return 0;
}
static int n8x0_auto_voltage_scale(void)
{
int ret;
ret = menelaus_set_vcore_hw(1400, 1050);
if (ret < 0) {
printk(KERN_ERR "Could not set VCORE voltage on "
"menelaus: %u\n", ret);
return ret;
}
return 0;
}
static int n8x0_menelaus_late_init(struct device *dev)
{
int ret;
ret = n8x0_auto_voltage_scale();
if (ret < 0)
return ret;
ret = n8x0_auto_sleep_regulators();
if (ret < 0)
return ret;
return 0;
}
#else
static int n8x0_menelaus_late_init(struct device *dev)
{
return 0;
}
#endif
static struct menelaus_platform_data n8x0_menelaus_platform_data __initdata = {
.late_init = n8x0_menelaus_late_init,
};
static struct i2c_board_info __initdata n8x0_i2c_board_info_1[] __initdata = {
{
I2C_BOARD_INFO("menelaus", 0x72),
.irq = INT_24XX_SYS_NIRQ,
.platform_data = &n8x0_menelaus_platform_data,
},
};
static struct aic3x_pdata n810_aic33_data __initdata = {
.gpio_reset = 118,
};
static struct i2c_board_info n810_i2c_board_info_2[] __initdata = {
{
I2C_BOARD_INFO("tlv320aic3x", 0x18),
.platform_data = &n810_aic33_data,
},
};
#ifdef CONFIG_OMAP_MUX
static struct omap_board_mux board_mux[] __initdata = {
/* I2S codec port pins for McBSP block */
OMAP2420_MUX(EAC_AC_SCLK, OMAP_MUX_MODE1 | OMAP_PIN_INPUT),
OMAP2420_MUX(EAC_AC_FS, OMAP_MUX_MODE1 | OMAP_PIN_INPUT),
OMAP2420_MUX(EAC_AC_DIN, OMAP_MUX_MODE1 | OMAP_PIN_INPUT),
OMAP2420_MUX(EAC_AC_DOUT, OMAP_MUX_MODE1 | OMAP_PIN_OUTPUT),
{ .reg_offset = OMAP_MUX_TERMINATOR },
};
static struct omap_device_pad serial2_pads[] __initdata = {
{
.name = "uart3_rx_irrx.uart3_rx_irrx",
.flags = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP,
.enable = OMAP_MUX_MODE0,
.idle = OMAP_MUX_MODE3 /* Mux as GPIO for idle */
},
};
static inline void board_serial_init(void)
{
struct omap_board_data bdata;
bdata.flags = 0;
bdata.pads = NULL;
bdata.pads_cnt = 0;
bdata.id = 0;
omap_serial_init_port(&bdata, NULL);
bdata.id = 1;
omap_serial_init_port(&bdata, NULL);
bdata.id = 2;
bdata.pads = serial2_pads;
bdata.pads_cnt = ARRAY_SIZE(serial2_pads);
omap_serial_init_port(&bdata, NULL);
}
#else
static inline void board_serial_init(void)
{
omap_serial_init();
}
#endif
static void __init n8x0_init_machine(void)
{
omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAC);
/* FIXME: add n810 spi devices */
spi_register_board_info(n800_spi_board_info,
ARRAY_SIZE(n800_spi_board_info));
omap_register_i2c_bus(1, 400, n8x0_i2c_board_info_1,
ARRAY_SIZE(n8x0_i2c_board_info_1));
omap_register_i2c_bus(2, 400, NULL, 0);
if (machine_is_nokia_n810())
i2c_register_board_info(2, n810_i2c_board_info_2,
ARRAY_SIZE(n810_i2c_board_info_2));
board_serial_init();
omap_sdrc_init(NULL, NULL);
gpmc_onenand_init(board_onenand_data);
n8x0_mmc_init();
n8x0_usb_init();
}
MACHINE_START(NOKIA_N800, "Nokia N800")
.atag_offset = 0x100,
.reserve = omap_reserve,
.map_io = omap242x_map_io,
.init_early = omap2420_init_early,
.init_irq = omap2_init_irq,
.handle_irq = omap2_intc_handle_irq,
.init_machine = n8x0_init_machine,
.init_late = omap2420_init_late,
.timer = &omap2_timer,
.restart = omap_prcm_restart,
MACHINE_END
MACHINE_START(NOKIA_N810, "Nokia N810")
.atag_offset = 0x100,
.reserve = omap_reserve,
.map_io = omap242x_map_io,
.init_early = omap2420_init_early,
.init_irq = omap2_init_irq,
.handle_irq = omap2_intc_handle_irq,
.init_machine = n8x0_init_machine,
.init_late = omap2420_init_late,
.timer = &omap2_timer,
.restart = omap_prcm_restart,
MACHINE_END
MACHINE_START(NOKIA_N810_WIMAX, "Nokia N810 WiMAX")
.atag_offset = 0x100,
.reserve = omap_reserve,
.map_io = omap242x_map_io,
.init_early = omap2420_init_early,
.init_irq = omap2_init_irq,
.handle_irq = omap2_intc_handle_irq,
.init_machine = n8x0_init_machine,
.init_late = omap2420_init_late,
.timer = &omap2_timer,
.restart = omap_prcm_restart,
MACHINE_END
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