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dmaengine: ste_dma40: support more than 128 event lines

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U8540 DMA controller is different from u9540 we need define new
registers and use them to support handling more than 128 event lines.

Signed-off-by: Tong Liu <tong.liu@stericsson.com>
Reviewed-by: Per Forlin <per.forlin@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
This commit is contained in:
Tong Liu 2012-09-26 10:07:30 +00:00 committed by Fabio Baltieri
parent 47db92f4a6
commit 3cb645dc85
2 changed files with 355 additions and 81 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

306
drivers/dma/ste_dma40.c
View File

@ -53,6 +53,8 @@
#define D40_ALLOC_PHY (1 << 30)
#define D40_ALLOC_LOG_FREE 0
#define MAX(a, b) (((a) < (b)) ? (b) : (a))
/**
* enum 40_command - The different commands and/or statuses.
*
@ -100,8 +102,19 @@ static u32 d40_backup_regs[] = {
#define BACKUP_REGS_SZ ARRAY_SIZE(d40_backup_regs)
/* TODO: Check if all these registers have to be saved/restored on dma40 v3 */
static u32 d40_backup_regs_v3[] = {
/*
* since 9540 and 8540 has the same HW revision
* use v4a for 9540 or ealier
* use v4b for 8540 or later
* HW revision:
* DB8500ed has revision 0
* DB8500v1 has revision 2
* DB8500v2 has revision 3
* AP9540v1 has revision 4
* DB8540v1 has revision 4
* TODO: Check if all these registers have to be saved/restored on dma40 v4a
*/
static u32 d40_backup_regs_v4a[] = {
D40_DREG_PSEG1,
D40_DREG_PSEG2,
D40_DREG_PSEG3,
@ -120,7 +133,32 @@ static u32 d40_backup_regs_v3[] = {
D40_DREG_RCEG4,
};
#define BACKUP_REGS_SZ_V3 ARRAY_SIZE(d40_backup_regs_v3)
#define BACKUP_REGS_SZ_V4A ARRAY_SIZE(d40_backup_regs_v4a)
static u32 d40_backup_regs_v4b[] = {
D40_DREG_CPSEG1,
D40_DREG_CPSEG2,
D40_DREG_CPSEG3,
D40_DREG_CPSEG4,
D40_DREG_CPSEG5,
D40_DREG_CPCEG1,
D40_DREG_CPCEG2,
D40_DREG_CPCEG3,
D40_DREG_CPCEG4,
D40_DREG_CPCEG5,
D40_DREG_CRSEG1,
D40_DREG_CRSEG2,
D40_DREG_CRSEG3,
D40_DREG_CRSEG4,
D40_DREG_CRSEG5,
D40_DREG_CRCEG1,
D40_DREG_CRCEG2,
D40_DREG_CRCEG3,
D40_DREG_CRCEG4,
D40_DREG_CRCEG5,
};
#define BACKUP_REGS_SZ_V4B ARRAY_SIZE(d40_backup_regs_v4b)
static u32 d40_backup_regs_chan[] = {
D40_CHAN_REG_SSCFG,
@ -133,6 +171,102 @@ static u32 d40_backup_regs_chan[] = {
D40_CHAN_REG_SDLNK,
};
/**
* struct d40_interrupt_lookup - lookup table for interrupt handler
*
* @src: Interrupt mask register.
* @clr: Interrupt clear register.
* @is_error: true if this is an error interrupt.
* @offset: start delta in the lookup_log_chans in d40_base. If equals to
* D40_PHY_CHAN, the lookup_phy_chans shall be used instead.
*/
struct d40_interrupt_lookup {
u32 src;
u32 clr;
bool is_error;
int offset;
};
static struct d40_interrupt_lookup il_v4a[] = {
{D40_DREG_LCTIS0, D40_DREG_LCICR0, false, 0},
{D40_DREG_LCTIS1, D40_DREG_LCICR1, false, 32},
{D40_DREG_LCTIS2, D40_DREG_LCICR2, false, 64},
{D40_DREG_LCTIS3, D40_DREG_LCICR3, false, 96},
{D40_DREG_LCEIS0, D40_DREG_LCICR0, true, 0},
{D40_DREG_LCEIS1, D40_DREG_LCICR1, true, 32},
{D40_DREG_LCEIS2, D40_DREG_LCICR2, true, 64},
{D40_DREG_LCEIS3, D40_DREG_LCICR3, true, 96},
{D40_DREG_PCTIS, D40_DREG_PCICR, false, D40_PHY_CHAN},
{D40_DREG_PCEIS, D40_DREG_PCICR, true, D40_PHY_CHAN},
};
static struct d40_interrupt_lookup il_v4b[] = {
{D40_DREG_CLCTIS1, D40_DREG_CLCICR1, false, 0},
{D40_DREG_CLCTIS2, D40_DREG_CLCICR2, false, 32},
{D40_DREG_CLCTIS3, D40_DREG_CLCICR3, false, 64},
{D40_DREG_CLCTIS4, D40_DREG_CLCICR4, false, 96},
{D40_DREG_CLCTIS5, D40_DREG_CLCICR5, false, 128},
{D40_DREG_CLCEIS1, D40_DREG_CLCICR1, true, 0},
{D40_DREG_CLCEIS2, D40_DREG_CLCICR2, true, 32},
{D40_DREG_CLCEIS3, D40_DREG_CLCICR3, true, 64},
{D40_DREG_CLCEIS4, D40_DREG_CLCICR4, true, 96},
{D40_DREG_CLCEIS5, D40_DREG_CLCICR5, true, 128},
{D40_DREG_CPCTIS, D40_DREG_CPCICR, false, D40_PHY_CHAN},
{D40_DREG_CPCEIS, D40_DREG_CPCICR, true, D40_PHY_CHAN},
};
/**
* struct d40_reg_val - simple lookup struct
*
* @reg: The register.
* @val: The value that belongs to the register in reg.
*/
struct d40_reg_val {
unsigned int reg;
unsigned int val;
};
static __initdata struct d40_reg_val dma_init_reg_v4a[] = {
/* Clock every part of the DMA block from start */
{ .reg = D40_DREG_GCC, .val = D40_DREG_GCC_ENABLE_ALL},
/* Interrupts on all logical channels */
{ .reg = D40_DREG_LCMIS0, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_LCMIS1, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_LCMIS2, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_LCMIS3, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_LCICR0, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_LCICR1, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_LCICR2, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_LCICR3, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_LCTIS0, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_LCTIS1, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_LCTIS2, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_LCTIS3, .val = 0xFFFFFFFF}
};
static __initdata struct d40_reg_val dma_init_reg_v4b[] = {
/* Clock every part of the DMA block from start */
{ .reg = D40_DREG_GCC, .val = D40_DREG_GCC_ENABLE_ALL},
/* Interrupts on all logical channels */
{ .reg = D40_DREG_CLCMIS1, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_CLCMIS2, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_CLCMIS3, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_CLCMIS4, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_CLCMIS5, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_CLCICR1, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_CLCICR2, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_CLCICR3, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_CLCICR4, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_CLCICR5, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_CLCTIS1, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_CLCTIS2, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_CLCTIS3, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_CLCTIS4, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_CLCTIS5, .val = 0xFFFFFFFF}
};
/**
* struct d40_lli_pool - Structure for keeping LLIs in memory
*
@ -288,6 +422,38 @@ struct d40_chan {
enum dma_transfer_direction runtime_direction;
};
/**
* struct d40_gen_dmac - generic values to represent u8500/u8540 DMA
* controller
*
* @backup: the pointer to the registers address array for backup
* @backup_size: the size of the registers address array for backup
* @realtime_en: the realtime enable register
* @realtime_clear: the realtime clear register
* @high_prio_en: the high priority enable register
* @high_prio_clear: the high priority clear register
* @interrupt_en: the interrupt enable register
* @interrupt_clear: the interrupt clear register
* @il: the pointer to struct d40_interrupt_lookup
* @il_size: the size of d40_interrupt_lookup array
* @init_reg: the pointer to the struct d40_reg_val
* @init_reg_size: the size of d40_reg_val array
*/
struct d40_gen_dmac {
u32 *backup;
u32 backup_size;
u32 realtime_en;
u32 realtime_clear;
u32 high_prio_en;
u32 high_prio_clear;
u32 interrupt_en;
u32 interrupt_clear;
struct d40_interrupt_lookup *il;
u32 il_size;
struct d40_reg_val *init_reg;
u32 init_reg_size;
};
/**
* struct d40_base - The big global struct, one for each probe'd instance.
*
@ -326,11 +492,13 @@ struct d40_chan {
* @desc_slab: cache for descriptors.
* @reg_val_backup: Here the values of some hardware registers are stored
* before the DMA is powered off. They are restored when the power is back on.
* @reg_val_backup_v3: Backup of registers that only exits on dma40 v3 and
* later.
* @reg_val_backup_v4: Backup of registers that only exits on dma40 v3 and
* later
* @reg_val_backup_chan: Backup data for standard channel parameter registers.
* @gcc_pwr_off_mask: Mask to maintain the channels that can be turned off.
* @initialized: true if the dma has been initialized
* @gen_dmac: the struct for generic registers values to represent u8500/8540
* DMA controller
*/
struct d40_base {
spinlock_t interrupt_lock;
@ -362,37 +530,11 @@ struct d40_base {
resource_size_t lcpa_size;
struct kmem_cache *desc_slab;
u32 reg_val_backup[BACKUP_REGS_SZ];
u32 reg_val_backup_v3[BACKUP_REGS_SZ_V3];
u32 reg_val_backup_v4[MAX(BACKUP_REGS_SZ_V4A, BACKUP_REGS_SZ_V4B)];
u32 *reg_val_backup_chan;
u16 gcc_pwr_off_mask;
bool initialized;
};
/**
* struct d40_interrupt_lookup - lookup table for interrupt handler
*
* @src: Interrupt mask register.
* @clr: Interrupt clear register.
* @is_error: true if this is an error interrupt.
* @offset: start delta in the lookup_log_chans in d40_base. If equals to
* D40_PHY_CHAN, the lookup_phy_chans shall be used instead.
*/
struct d40_interrupt_lookup {
u32 src;
u32 clr;
bool is_error;
int offset;
};
/**
* struct d40_reg_val - simple lookup struct
*
* @reg: The register.
* @val: The value that belongs to the register in reg.
*/
struct d40_reg_val {
unsigned int reg;
unsigned int val;
struct d40_gen_dmac gen_dmac;
};
static struct device *chan2dev(struct d40_chan *d40c)
@ -875,11 +1017,11 @@ static void d40_save_restore_registers(struct d40_base *base, bool save)
save);
/* Save/Restore registers only existing on dma40 v3 and later */
if (base->rev >= 3)
dma40_backup(base->virtbase, base->reg_val_backup_v3,
d40_backup_regs_v3,
ARRAY_SIZE(d40_backup_regs_v3),
save);
if (base->gen_dmac.backup)
dma40_backup(base->virtbase, base->reg_val_backup_v4,
base->gen_dmac.backup,
base->gen_dmac.backup_size,
save);
}
#else
static void d40_save_restore_registers(struct d40_base *base, bool save)
@ -1470,41 +1612,30 @@ err:
static irqreturn_t d40_handle_interrupt(int irq, void *data)
{
static const struct d40_interrupt_lookup il[] = {
{D40_DREG_LCTIS0, D40_DREG_LCICR0, false, 0},
{D40_DREG_LCTIS1, D40_DREG_LCICR1, false, 32},
{D40_DREG_LCTIS2, D40_DREG_LCICR2, false, 64},
{D40_DREG_LCTIS3, D40_DREG_LCICR3, false, 96},
{D40_DREG_LCEIS0, D40_DREG_LCICR0, true, 0},
{D40_DREG_LCEIS1, D40_DREG_LCICR1, true, 32},
{D40_DREG_LCEIS2, D40_DREG_LCICR2, true, 64},
{D40_DREG_LCEIS3, D40_DREG_LCICR3, true, 96},
{D40_DREG_PCTIS, D40_DREG_PCICR, false, D40_PHY_CHAN},
{D40_DREG_PCEIS, D40_DREG_PCICR, true, D40_PHY_CHAN},
};
int i;
u32 regs[ARRAY_SIZE(il)];
u32 idx;
u32 row;
long chan = -1;
struct d40_chan *d40c;
unsigned long flags;
struct d40_base *base = data;
u32 regs[base->gen_dmac.il_size];
struct d40_interrupt_lookup *il = base->gen_dmac.il;
u32 il_size = base->gen_dmac.il_size;
spin_lock_irqsave(&base->interrupt_lock, flags);
/* Read interrupt status of both logical and physical channels */
for (i = 0; i < ARRAY_SIZE(il); i++)
for (i = 0; i < il_size; i++)
regs[i] = readl(base->virtbase + il[i].src);
for (;;) {
chan = find_next_bit((unsigned long *)regs,
BITS_PER_LONG * ARRAY_SIZE(il), chan + 1);
BITS_PER_LONG * il_size, chan + 1);
/* No more set bits found? */
if (chan == BITS_PER_LONG * ARRAY_SIZE(il))
if (chan == BITS_PER_LONG * il_size)
break;
row = chan / BITS_PER_LONG;
@ -2189,12 +2320,14 @@ static void __d40_set_prio_rt(struct d40_chan *d40c, int dev_type, bool src)
{
bool realtime = d40c->dma_cfg.realtime;
bool highprio = d40c->dma_cfg.high_priority;
u32 rtreg = realtime ? D40_DREG_RSEG1 : D40_DREG_RCEG1;
u32 rtreg;
u32 event = D40_TYPE_TO_EVENT(dev_type);
u32 group = D40_TYPE_TO_GROUP(dev_type);
u32 bit = 1 << event;
u32 prioreg;
struct d40_gen_dmac *dmac = &d40c->base->gen_dmac;
rtreg = realtime ? dmac->realtime_en : dmac->realtime_clear;
/*
* Due to a hardware bug, in some cases a logical channel triggered by
* a high priority destination event line can generate extra packet
@ -2206,7 +2339,7 @@ static void __d40_set_prio_rt(struct d40_chan *d40c, int dev_type, bool src)
if (!src && chan_is_logical(d40c))
highprio = false;
prioreg = highprio ? D40_DREG_PSEG1 : D40_DREG_PCEG1;
prioreg = highprio ? dmac->high_prio_en : dmac->high_prio_clear;
/* Destination event lines are stored in the upper halfword */
if (!src)
@ -3056,6 +3189,36 @@ static struct d40_base * __init d40_hw_detect_init(struct platform_device *pdev)
base->phy_chans = ((void *)base) + ALIGN(sizeof(struct d40_base), 4);
base->log_chans = &base->phy_chans[num_phy_chans];
if (base->plat_data->num_of_phy_chans == 14) {
base->gen_dmac.backup = d40_backup_regs_v4b;
base->gen_dmac.backup_size = BACKUP_REGS_SZ_V4B;
base->gen_dmac.interrupt_en = D40_DREG_CPCMIS;
base->gen_dmac.interrupt_clear = D40_DREG_CPCICR;
base->gen_dmac.realtime_en = D40_DREG_CRSEG1;
base->gen_dmac.realtime_clear = D40_DREG_CRCEG1;
base->gen_dmac.high_prio_en = D40_DREG_CPSEG1;
base->gen_dmac.high_prio_clear = D40_DREG_CPCEG1;
base->gen_dmac.il = il_v4b;
base->gen_dmac.il_size = ARRAY_SIZE(il_v4b);
base->gen_dmac.init_reg = dma_init_reg_v4b;
base->gen_dmac.init_reg_size = ARRAY_SIZE(dma_init_reg_v4b);
} else {
if (base->rev >= 3) {
base->gen_dmac.backup = d40_backup_regs_v4a;
base->gen_dmac.backup_size = BACKUP_REGS_SZ_V4A;
}
base->gen_dmac.interrupt_en = D40_DREG_PCMIS;
base->gen_dmac.interrupt_clear = D40_DREG_PCICR;
base->gen_dmac.realtime_en = D40_DREG_RSEG1;
base->gen_dmac.realtime_clear = D40_DREG_RCEG1;
base->gen_dmac.high_prio_en = D40_DREG_PSEG1;
base->gen_dmac.high_prio_clear = D40_DREG_PCEG1;
base->gen_dmac.il = il_v4a;
base->gen_dmac.il_size = ARRAY_SIZE(il_v4a);
base->gen_dmac.init_reg = dma_init_reg_v4a;
base->gen_dmac.init_reg_size = ARRAY_SIZE(dma_init_reg_v4a);
}
base->phy_res = kzalloc(num_phy_chans * sizeof(struct d40_phy_res),
GFP_KERNEL);
if (!base->phy_res)
@ -3127,31 +3290,15 @@ failure:
static void __init d40_hw_init(struct d40_base *base)
{
static struct d40_reg_val dma_init_reg[] = {
/* Clock every part of the DMA block from start */
{ .reg = D40_DREG_GCC, .val = D40_DREG_GCC_ENABLE_ALL},
/* Interrupts on all logical channels */
{ .reg = D40_DREG_LCMIS0, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_LCMIS1, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_LCMIS2, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_LCMIS3, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_LCICR0, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_LCICR1, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_LCICR2, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_LCICR3, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_LCTIS0, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_LCTIS1, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_LCTIS2, .val = 0xFFFFFFFF},
{ .reg = D40_DREG_LCTIS3, .val = 0xFFFFFFFF}
};
int i;
u32 prmseo[2] = {0, 0};
u32 activeo[2] = {0xFFFFFFFF, 0xFFFFFFFF};
u32 pcmis = 0;
u32 pcicr = 0;
struct d40_reg_val *dma_init_reg = base->gen_dmac.init_reg;
u32 reg_size = base->gen_dmac.init_reg_size;
for (i = 0; i < ARRAY_SIZE(dma_init_reg); i++)
for (i = 0; i < reg_size; i++)
writel(dma_init_reg[i].val,
base->virtbase + dma_init_reg[i].reg);
@ -3184,11 +3331,14 @@ static void __init d40_hw_init(struct d40_base *base)
writel(activeo[0], base->virtbase + D40_DREG_ACTIVO);
/* Write which interrupt to enable */
writel(pcmis, base->virtbase + D40_DREG_PCMIS);
writel(pcmis, base->virtbase + base->gen_dmac.interrupt_en);
/* Write which interrupt to clear */
writel(pcicr, base->virtbase + D40_DREG_PCICR);
writel(pcicr, base->virtbase + base->gen_dmac.interrupt_clear);
/* These are __initdata and cannot be accessed after init */
base->gen_dmac.init_reg = NULL;
base->gen_dmac.init_reg_size = 0;
}
static int __init d40_lcla_allocate(struct d40_base *base)

130
drivers/dma/ste_dma40_ll.h
View File

@ -125,7 +125,7 @@
#define D40_DREG_GCC 0x000
#define D40_DREG_GCC_ENA 0x1
/* This assumes that there are only 4 event groups */
#define D40_DREG_GCC_ENABLE_ALL 0xff01
#define D40_DREG_GCC_ENABLE_ALL 0x3ff01
#define D40_DREG_GCC_EVTGRP_POS 8
#define D40_DREG_GCC_SRC 0
#define D40_DREG_GCC_DST 1
@ -148,14 +148,31 @@
#define D40_DREG_LCPA 0x020
#define D40_DREG_LCLA 0x024
#define D40_DREG_SSEG1 0x030
#define D40_DREG_SSEG2 0x034
#define D40_DREG_SSEG3 0x038
#define D40_DREG_SSEG4 0x03C
#define D40_DREG_SCEG1 0x040
#define D40_DREG_SCEG2 0x044
#define D40_DREG_SCEG3 0x048
#define D40_DREG_SCEG4 0x04C
#define D40_DREG_ACTIVE 0x050
#define D40_DREG_ACTIVO 0x054
#define D40_DREG_FSEB1 0x058
#define D40_DREG_FSEB2 0x05C
#define D40_DREG_CIDMOD 0x058
#define D40_DREG_TCIDV 0x05C
#define D40_DREG_PCMIS 0x060
#define D40_DREG_PCICR 0x064
#define D40_DREG_PCTIS 0x068
#define D40_DREG_PCEIS 0x06C
#define D40_DREG_SPCMIS 0x070
#define D40_DREG_SPCICR 0x074
#define D40_DREG_SPCTIS 0x078
#define D40_DREG_SPCEIS 0x07C
#define D40_DREG_LCMIS0 0x080
#define D40_DREG_LCMIS1 0x084
#define D40_DREG_LCMIS2 0x088
@ -172,6 +189,33 @@
#define D40_DREG_LCEIS1 0x0B4
#define D40_DREG_LCEIS2 0x0B8
#define D40_DREG_LCEIS3 0x0BC
#define D40_DREG_SLCMIS1 0x0C0
#define D40_DREG_SLCMIS2 0x0C4
#define D40_DREG_SLCMIS3 0x0C8
#define D40_DREG_SLCMIS4 0x0CC
#define D40_DREG_SLCICR1 0x0D0
#define D40_DREG_SLCICR2 0x0D4
#define D40_DREG_SLCICR3 0x0D8
#define D40_DREG_SLCICR4 0x0DC
#define D40_DREG_SLCTIS1 0x0E0
#define D40_DREG_SLCTIS2 0x0E4
#define D40_DREG_SLCTIS3 0x0E8
#define D40_DREG_SLCTIS4 0x0EC
#define D40_DREG_SLCEIS1 0x0F0
#define D40_DREG_SLCEIS2 0x0F4
#define D40_DREG_SLCEIS3 0x0F8
#define D40_DREG_SLCEIS4 0x0FC
#define D40_DREG_FSESS1 0x100
#define D40_DREG_FSESS2 0x104
#define D40_DREG_FSEBS1 0x108
#define D40_DREG_FSEBS2 0x10C
#define D40_DREG_PSEG1 0x110
#define D40_DREG_PSEG2 0x114
#define D40_DREG_PSEG3 0x118
@ -188,6 +232,86 @@
#define D40_DREG_RCEG2 0x144
#define D40_DREG_RCEG3 0x148
#define D40_DREG_RCEG4 0x14C
#define D40_DREG_PREFOT 0x15C
#define D40_DREG_EXTCFG 0x160
#define D40_DREG_CPSEG1 0x200
#define D40_DREG_CPSEG2 0x204
#define D40_DREG_CPSEG3 0x208
#define D40_DREG_CPSEG4 0x20C
#define D40_DREG_CPSEG5 0x210
#define D40_DREG_CPCEG1 0x220
#define D40_DREG_CPCEG2 0x224
#define D40_DREG_CPCEG3 0x228
#define D40_DREG_CPCEG4 0x22C
#define D40_DREG_CPCEG5 0x230
#define D40_DREG_CRSEG1 0x240
#define D40_DREG_CRSEG2 0x244
#define D40_DREG_CRSEG3 0x248
#define D40_DREG_CRSEG4 0x24C
#define D40_DREG_CRSEG5 0x250
#define D40_DREG_CRCEG1 0x260
#define D40_DREG_CRCEG2 0x264
#define D40_DREG_CRCEG3 0x268
#define D40_DREG_CRCEG4 0x26C
#define D40_DREG_CRCEG5 0x270
#define D40_DREG_CFSESS1 0x280
#define D40_DREG_CFSESS2 0x284
#define D40_DREG_CFSESS3 0x288
#define D40_DREG_CFSEBS1 0x290
#define D40_DREG_CFSEBS2 0x294
#define D40_DREG_CFSEBS3 0x298
#define D40_DREG_CLCMIS1 0x300
#define D40_DREG_CLCMIS2 0x304
#define D40_DREG_CLCMIS3 0x308
#define D40_DREG_CLCMIS4 0x30C
#define D40_DREG_CLCMIS5 0x310
#define D40_DREG_CLCICR1 0x320
#define D40_DREG_CLCICR2 0x324
#define D40_DREG_CLCICR3 0x328
#define D40_DREG_CLCICR4 0x32C
#define D40_DREG_CLCICR5 0x330
#define D40_DREG_CLCTIS1 0x340
#define D40_DREG_CLCTIS2 0x344
#define D40_DREG_CLCTIS3 0x348
#define D40_DREG_CLCTIS4 0x34C
#define D40_DREG_CLCTIS5 0x350
#define D40_DREG_CLCEIS1 0x360
#define D40_DREG_CLCEIS2 0x364
#define D40_DREG_CLCEIS3 0x368
#define D40_DREG_CLCEIS4 0x36C
#define D40_DREG_CLCEIS5 0x370
#define D40_DREG_CPCMIS 0x380
#define D40_DREG_CPCICR 0x384
#define D40_DREG_CPCTIS 0x388
#define D40_DREG_CPCEIS 0x38C
#define D40_DREG_SCCIDA1 0xE80
#define D40_DREG_SCCIDA2 0xE90
#define D40_DREG_SCCIDA3 0xEA0
#define D40_DREG_SCCIDA4 0xEB0
#define D40_DREG_SCCIDA5 0xEC0
#define D40_DREG_SCCIDB1 0xE84
#define D40_DREG_SCCIDB2 0xE94
#define D40_DREG_SCCIDB3 0xEA4
#define D40_DREG_SCCIDB4 0xEB4
#define D40_DREG_SCCIDB5 0xEC4
#define D40_DREG_PRSCCIDA 0xF80
#define D40_DREG_PRSCCIDB 0xF84
#define D40_DREG_STFU 0xFC8
#define D40_DREG_ICFG 0xFCC
#define D40_DREG_PERIPHID0 0xFE0