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Diffstat (limited to 'arch/arm/plat-omap/dma.c')
-rw-r--r--arch/arm/plat-omap/dma.c517
1 files changed, 316 insertions, 201 deletions
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index a863f5546a6..49a7cd4763f 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -40,6 +40,96 @@
#undef DEBUG
+static u16 reg_map_omap1[] = {
+ [GCR] = 0x400,
+ [GSCR] = 0x404,
+ [GRST1] = 0x408,
+ [HW_ID] = 0x442,
+ [PCH2_ID] = 0x444,
+ [PCH0_ID] = 0x446,
+ [PCH1_ID] = 0x448,
+ [PCHG_ID] = 0x44a,
+ [PCHD_ID] = 0x44c,
+ [CAPS_0] = 0x44e,
+ [CAPS_1] = 0x452,
+ [CAPS_2] = 0x456,
+ [CAPS_3] = 0x458,
+ [CAPS_4] = 0x45a,
+ [PCH2_SR] = 0x460,
+ [PCH0_SR] = 0x480,
+ [PCH1_SR] = 0x482,
+ [PCHD_SR] = 0x4c0,
+
+ /* Common Registers */
+ [CSDP] = 0x00,
+ [CCR] = 0x02,
+ [CICR] = 0x04,
+ [CSR] = 0x06,
+ [CEN] = 0x10,
+ [CFN] = 0x12,
+ [CSFI] = 0x14,
+ [CSEI] = 0x16,
+ [CPC] = 0x18, /* 15xx only */
+ [CSAC] = 0x18,
+ [CDAC] = 0x1a,
+ [CDEI] = 0x1c,
+ [CDFI] = 0x1e,
+ [CLNK_CTRL] = 0x28,
+
+ /* Channel specific register offsets */
+ [CSSA] = 0x08,
+ [CDSA] = 0x0c,
+ [COLOR] = 0x20,
+ [CCR2] = 0x24,
+ [LCH_CTRL] = 0x2a,
+};
+
+static u16 reg_map_omap2[] = {
+ [REVISION] = 0x00,
+ [GCR] = 0x78,
+ [IRQSTATUS_L0] = 0x08,
+ [IRQSTATUS_L1] = 0x0c,
+ [IRQSTATUS_L2] = 0x10,
+ [IRQSTATUS_L3] = 0x14,
+ [IRQENABLE_L0] = 0x18,
+ [IRQENABLE_L1] = 0x1c,
+ [IRQENABLE_L2] = 0x20,
+ [IRQENABLE_L3] = 0x24,
+ [SYSSTATUS] = 0x28,
+ [OCP_SYSCONFIG] = 0x2c,
+ [CAPS_0] = 0x64,
+ [CAPS_2] = 0x6c,
+ [CAPS_3] = 0x70,
+ [CAPS_4] = 0x74,
+
+ /* Common register offsets */
+ [CCR] = 0x80,
+ [CLNK_CTRL] = 0x84,
+ [CICR] = 0x88,
+ [CSR] = 0x8c,
+ [CSDP] = 0x90,
+ [CEN] = 0x94,
+ [CFN] = 0x98,
+ [CSEI] = 0xa4,
+ [CSFI] = 0xa8,
+ [CDEI] = 0xac,
+ [CDFI] = 0xb0,
+ [CSAC] = 0xb4,
+ [CDAC] = 0xb8,
+
+ /* Channel specific register offsets */
+ [CSSA] = 0x9c,
+ [CDSA] = 0xa0,
+ [CCEN] = 0xbc,
+ [CCFN] = 0xc0,
+ [COLOR] = 0xc4,
+
+ /* OMAP4 specific registers */
+ [CDP] = 0xd0,
+ [CNDP] = 0xd4,
+ [CCDN] = 0xd8,
+};
+
#ifndef CONFIG_ARCH_OMAP1
enum { DMA_CH_ALLOC_DONE, DMA_CH_PARAMS_SET_DONE, DMA_CH_STARTED,
DMA_CH_QUEUED, DMA_CH_NOTSTARTED, DMA_CH_PAUSED, DMA_CH_LINK_ENABLED
@@ -138,6 +228,9 @@ static int omap_dma_reserve_channels;
static spinlock_t dma_chan_lock;
static struct omap_dma_lch *dma_chan;
static void __iomem *omap_dma_base;
+static u16 *reg_map;
+static u8 dma_stride;
+static enum omap_reg_offsets dma_common_ch_start, dma_common_ch_end;
static const u8 omap1_dma_irq[OMAP1_LOGICAL_DMA_CH_COUNT] = {
INT_DMA_CH0_6, INT_DMA_CH1_7, INT_DMA_CH2_8, INT_DMA_CH3,
@@ -154,23 +247,48 @@ static inline void omap_enable_channel_irq(int lch);
#define REVISIT_24XX() printk(KERN_ERR "FIXME: no %s on 24xx\n", \
__func__);
-#define dma_read(reg) \
-({ \
- u32 __val; \
- if (cpu_class_is_omap1()) \
- __val = __raw_readw(omap_dma_base + OMAP1_DMA_##reg); \
- else \
- __val = __raw_readl(omap_dma_base + OMAP_DMA4_##reg); \
- __val; \
-})
-
-#define dma_write(val, reg) \
-({ \
- if (cpu_class_is_omap1()) \
- __raw_writew((u16)(val), omap_dma_base + OMAP1_DMA_##reg); \
- else \
- __raw_writel((val), omap_dma_base + OMAP_DMA4_##reg); \
-})
+static inline void dma_write(u32 val, int reg, int lch)
+{
+ u8 stride;
+ u32 offset;
+
+ stride = (reg >= dma_common_ch_start) ? dma_stride : 0;
+ offset = reg_map[reg] + (stride * lch);
+
+ if (dma_stride == 0x40) {
+ __raw_writew(val, omap_dma_base + offset);
+ if ((reg > CLNK_CTRL && reg < CCEN) ||
+ (reg > PCHD_ID && reg < CAPS_2)) {
+ u32 offset2 = reg_map[reg] + 2 + (stride * lch);
+ __raw_writew(val >> 16, omap_dma_base + offset2);
+ }
+ } else {
+ __raw_writel(val, omap_dma_base + offset);
+ }
+}
+
+static inline u32 dma_read(int reg, int lch)
+{
+ u8 stride;
+ u32 offset, val;
+
+ stride = (reg >= dma_common_ch_start) ? dma_stride : 0;
+ offset = reg_map[reg] + (stride * lch);
+
+ if (dma_stride == 0x40) {
+ val = __raw_readw(omap_dma_base + offset);
+ if ((reg > CLNK_CTRL && reg < CCEN) ||
+ (reg > PCHD_ID && reg < CAPS_2)) {
+ u16 upper;
+ u32 offset2 = reg_map[reg] + 2 + (stride * lch);
+ upper = __raw_readw(omap_dma_base + offset2);
+ val |= (upper << 16);
+ }
+ } else {
+ val = __raw_readl(omap_dma_base + offset);
+ }
+ return val;
+}
#ifdef CONFIG_ARCH_OMAP15XX
/* Returns 1 if the DMA module is in OMAP1510-compatible mode, 0 otherwise */
@@ -209,11 +327,10 @@ static inline void set_gdma_dev(int req, int dev)
/* Omap1 only */
static void clear_lch_regs(int lch)
{
- int i;
- void __iomem *lch_base = omap_dma_base + OMAP1_DMA_CH_BASE(lch);
+ int i = dma_common_ch_start;
- for (i = 0; i < 0x2c; i += 2)
- __raw_writew(0, lch_base + i);
+ for (; i <= dma_common_ch_end; i += 1)
+ dma_write(0, i, lch);
}
void omap_set_dma_priority(int lch, int dst_port, int priority)
@@ -248,12 +365,12 @@ void omap_set_dma_priority(int lch, int dst_port, int priority)
if (cpu_class_is_omap2()) {
u32 ccr;
- ccr = dma_read(CCR(lch));
+ ccr = dma_read(CCR, lch);
if (priority)
ccr |= (1 << 6);
else
ccr &= ~(1 << 6);
- dma_write(ccr, CCR(lch));
+ dma_write(ccr, CCR, lch);
}
}
EXPORT_SYMBOL(omap_set_dma_priority);
@@ -264,31 +381,31 @@ void omap_set_dma_transfer_params(int lch, int data_type, int elem_count,
{
u32 l;
- l = dma_read(CSDP(lch));
+ l = dma_read(CSDP, lch);
l &= ~0x03;
l |= data_type;
- dma_write(l, CSDP(lch));
+ dma_write(l, CSDP, lch);
if (cpu_class_is_omap1()) {
u16 ccr;
- ccr = dma_read(CCR(lch));
+ ccr = dma_read(CCR, lch);
ccr &= ~(1 << 5);
if (sync_mode == OMAP_DMA_SYNC_FRAME)
ccr |= 1 << 5;
- dma_write(ccr, CCR(lch));
+ dma_write(ccr, CCR, lch);
- ccr = dma_read(CCR2(lch));
+ ccr = dma_read(CCR2, lch);
ccr &= ~(1 << 2);
if (sync_mode == OMAP_DMA_SYNC_BLOCK)
ccr |= 1 << 2;
- dma_write(ccr, CCR2(lch));
+ dma_write(ccr, CCR2, lch);
}
if (cpu_class_is_omap2() && dma_trigger) {
u32 val;
- val = dma_read(CCR(lch));
+ val = dma_read(CCR, lch);
/* DMA_SYNCHRO_CONTROL_UPPER depends on the channel number */
val &= ~((1 << 23) | (3 << 19) | 0x1f);
@@ -313,11 +430,11 @@ void omap_set_dma_transfer_params(int lch, int data_type, int elem_count,
} else {
val &= ~(1 << 24); /* dest synch */
}
- dma_write(val, CCR(lch));
+ dma_write(val, CCR, lch);
}
- dma_write(elem_count, CEN(lch));
- dma_write(frame_count, CFN(lch));
+ dma_write(elem_count, CEN, lch);
+ dma_write(frame_count, CFN, lch);
}
EXPORT_SYMBOL(omap_set_dma_transfer_params);
@@ -328,7 +445,7 @@ void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode, u32 color)
if (cpu_class_is_omap1()) {
u16 w;
- w = dma_read(CCR2(lch));
+ w = dma_read(CCR2, lch);
w &= ~0x03;
switch (mode) {
@@ -343,23 +460,22 @@ void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode, u32 color)
default:
BUG();
}
- dma_write(w, CCR2(lch));
+ dma_write(w, CCR2, lch);
- w = dma_read(LCH_CTRL(lch));
+ w = dma_read(LCH_CTRL, lch);
w &= ~0x0f;
/* Default is channel type 2D */
if (mode) {
- dma_write((u16)color, COLOR_L(lch));
- dma_write((u16)(color >> 16), COLOR_U(lch));
+ dma_write(color, COLOR, lch);
w |= 1; /* Channel type G */
}
- dma_write(w, LCH_CTRL(lch));
+ dma_write(w, LCH_CTRL, lch);
}
if (cpu_class_is_omap2()) {
u32 val;
- val = dma_read(CCR(lch));
+ val = dma_read(CCR, lch);
val &= ~((1 << 17) | (1 << 16));
switch (mode) {
@@ -374,10 +490,10 @@ void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode, u32 color)
default:
BUG();
}
- dma_write(val, CCR(lch));
+ dma_write(val, CCR, lch);
color &= 0xffffff;
- dma_write(color, COLOR(lch));
+ dma_write(color, COLOR, lch);
}
}
EXPORT_SYMBOL(omap_set_dma_color_mode);
@@ -387,10 +503,10 @@ void omap_set_dma_write_mode(int lch, enum omap_dma_write_mode mode)
if (cpu_class_is_omap2()) {
u32 csdp;
- csdp = dma_read(CSDP(lch));
+ csdp = dma_read(CSDP, lch);
csdp &= ~(0x3 << 16);
csdp |= (mode << 16);
- dma_write(csdp, CSDP(lch));
+ dma_write(csdp, CSDP, lch);
}
}
EXPORT_SYMBOL(omap_set_dma_write_mode);
@@ -400,10 +516,10 @@ void omap_set_dma_channel_mode(int lch, enum omap_dma_channel_mode mode)
if (cpu_class_is_omap1() && !cpu_is_omap15xx()) {
u32 l;
- l = dma_read(LCH_CTRL(lch));
+ l = dma_read(LCH_CTRL, lch);
l &= ~0x7;
l |= mode;
- dma_write(l, LCH_CTRL(lch));
+ dma_write(l, LCH_CTRL, lch);
}
}
EXPORT_SYMBOL(omap_set_dma_channel_mode);
@@ -418,27 +534,21 @@ void omap_set_dma_src_params(int lch, int src_port, int src_amode,
if (cpu_class_is_omap1()) {
u16 w;
- w = dma_read(CSDP(lch));
+ w = dma_read(CSDP, lch);
w &= ~(0x1f << 2);
w |= src_port << 2;
- dma_write(w, CSDP(lch));
+ dma_write(w, CSDP, lch);
}
- l = dma_read(CCR(lch));
+ l = dma_read(CCR, lch);
l &= ~(0x03 << 12);
l |= src_amode << 12;
- dma_write(l, CCR(lch));
+ dma_write(l, CCR, lch);
- if (cpu_class_is_omap1()) {
- dma_write(src_start >> 16, CSSA_U(lch));
- dma_write((u16)src_start, CSSA_L(lch));
- }
+ dma_write(src_start, CSSA, lch);
- if (cpu_class_is_omap2())
- dma_write(src_start, CSSA(lch));
-
- dma_write(src_ei, CSEI(lch));
- dma_write(src_fi, CSFI(lch));
+ dma_write(src_ei, CSEI, lch);
+ dma_write(src_fi, CSFI, lch);
}
EXPORT_SYMBOL(omap_set_dma_src_params);
@@ -466,8 +576,8 @@ void omap_set_dma_src_index(int lch, int eidx, int fidx)
if (cpu_class_is_omap2())
return;
- dma_write(eidx, CSEI(lch));
- dma_write(fidx, CSFI(lch));
+ dma_write(eidx, CSEI, lch);
+ dma_write(fidx, CSFI, lch);
}
EXPORT_SYMBOL(omap_set_dma_src_index);
@@ -475,11 +585,11 @@ void omap_set_dma_src_data_pack(int lch, int enable)
{
u32 l;
- l = dma_read(CSDP(lch));
+ l = dma_read(CSDP, lch);
l &= ~(1 << 6);
if (enable)
l |= (1 << 6);
- dma_write(l, CSDP(lch));
+ dma_write(l, CSDP, lch);
}
EXPORT_SYMBOL(omap_set_dma_src_data_pack);
@@ -488,7 +598,7 @@ void omap_set_dma_src_burst_mode(int lch, enum omap_dma_burst_mode burst_mode)
unsigned int burst = 0;
u32 l;
- l = dma_read(CSDP(lch));
+ l = dma_read(CSDP, lch);
l &= ~(0x03 << 7);
switch (burst_mode) {
@@ -524,7 +634,7 @@ void omap_set_dma_src_burst_mode(int lch, enum omap_dma_burst_mode burst_mode)
}
l |= (burst << 7);
- dma_write(l, CSDP(lch));
+ dma_write(l, CSDP, lch);
}
EXPORT_SYMBOL(omap_set_dma_src_burst_mode);
@@ -536,27 +646,21 @@ void omap_set_dma_dest_params(int lch, int dest_port, int dest_amode,
u32 l;
if (cpu_class_is_omap1()) {
- l = dma_read(CSDP(lch));
+ l = dma_read(CSDP, lch);
l &= ~(0x1f << 9);
l |= dest_port << 9;
- dma_write(l, CSDP(lch));
+ dma_write(l, CSDP, lch);
}
- l = dma_read(CCR(lch));
+ l = dma_read(CCR, lch);
l &= ~(0x03 << 14);
l |= dest_amode << 14;
- dma_write(l, CCR(lch));
-
- if (cpu_class_is_omap1()) {
- dma_write(dest_start >> 16, CDSA_U(lch));
- dma_write(dest_start, CDSA_L(lch));
- }
+ dma_write(l, CCR, lch);
- if (cpu_class_is_omap2())
- dma_write(dest_start, CDSA(lch));
+ dma_write(dest_start, CDSA, lch);
- dma_write(dst_ei, CDEI(lch));
- dma_write(dst_fi, CDFI(lch));
+ dma_write(dst_ei, CDEI, lch);
+ dma_write(dst_fi, CDFI, lch);
}
EXPORT_SYMBOL(omap_set_dma_dest_params);
@@ -565,8 +669,8 @@ void omap_set_dma_dest_index(int lch, int eidx, int fidx)
if (cpu_class_is_omap2())
return;
- dma_write(eidx, CDEI(lch));
- dma_write(fidx, CDFI(lch));
+ dma_write(eidx, CDEI, lch);
+ dma_write(fidx, CDFI, lch);
}
EXPORT_SYMBOL(omap_set_dma_dest_index);
@@ -574,11 +678,11 @@ void omap_set_dma_dest_data_pack(int lch, int enable)
{
u32 l;
- l = dma_read(CSDP(lch));
+ l = dma_read(CSDP, lch);
l &= ~(1 << 13);
if (enable)
l |= 1 << 13;
- dma_write(l, CSDP(lch));
+ dma_write(l, CSDP, lch);
}
EXPORT_SYMBOL(omap_set_dma_dest_data_pack);
@@ -587,7 +691,7 @@ void omap_set_dma_dest_burst_mode(int lch, enum omap_dma_burst_mode burst_mode)
unsigned int burst = 0;
u32 l;
- l = dma_read(CSDP(lch));
+ l = dma_read(CSDP, lch);
l &= ~(0x03 << 14);
switch (burst_mode) {
@@ -620,7 +724,7 @@ void omap_set_dma_dest_burst_mode(int lch, enum omap_dma_burst_mode burst_mode)
return;
}
l |= (burst << 14);
- dma_write(l, CSDP(lch));
+ dma_write(l, CSDP, lch);
}
EXPORT_SYMBOL(omap_set_dma_dest_burst_mode);
@@ -630,18 +734,18 @@ static inline void omap_enable_channel_irq(int lch)
/* Clear CSR */
if (cpu_class_is_omap1())
- status = dma_read(CSR(lch));
+ status = dma_read(CSR, lch);
else if (cpu_class_is_omap2())
- dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR(lch));
+ dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR, lch);
/* Enable some nice interrupts. */
- dma_write(dma_chan[lch].enabled_irqs, CICR(lch));
+ dma_write(dma_chan[lch].enabled_irqs, CICR, lch);
}
static void omap_disable_channel_irq(int lch)
{
if (cpu_class_is_omap2())
- dma_write(0, CICR(lch));
+ dma_write(0, CICR, lch);
}
void omap_enable_dma_irq(int lch, u16 bits)
@@ -660,7 +764,7 @@ static inline void enable_lnk(int lch)
{
u32 l;
- l = dma_read(CLNK_CTRL(lch));
+ l = dma_read(CLNK_CTRL, lch);
if (cpu_class_is_omap1())
l &= ~(1 << 14);
@@ -675,18 +779,18 @@ static inline void enable_lnk(int lch)
l = dma_chan[lch].next_linked_ch | (1 << 15);
#endif
- dma_write(l, CLNK_CTRL(lch));
+ dma_write(l, CLNK_CTRL, lch);
}
static inline void disable_lnk(int lch)
{
u32 l;
- l = dma_read(CLNK_CTRL(lch));
+ l = dma_read(CLNK_CTRL, lch);
/* Disable interrupts */
if (cpu_class_is_omap1()) {
- dma_write(0, CICR(lch));
+ dma_write(0, CICR, lch);
/* Set the STOP_LNK bit */
l |= 1 << 14;
}
@@ -697,7 +801,7 @@ static inline void disable_lnk(int lch)
l &= ~(1 << 15);
}
- dma_write(l, CLNK_CTRL(lch));
+ dma_write(l, CLNK_CTRL, lch);
dma_chan[lch].flags &= ~OMAP_DMA_ACTIVE;
}
@@ -710,9 +814,9 @@ static inline void omap2_enable_irq_lch(int lch)
return;
spin_lock_irqsave(&dma_chan_lock, flags);
- val = dma_read(IRQENABLE_L0);
+ val = dma_read(IRQENABLE_L0, lch);
val |= 1 << lch;
- dma_write(val, IRQENABLE_L0);
+ dma_write(val, IRQENABLE_L0, lch);
spin_unlock_irqrestore(&dma_chan_lock, flags);
}
@@ -725,9 +829,9 @@ static inline void omap2_disable_irq_lch(int lch)
return;
spin_lock_irqsave(&dma_chan_lock, flags);
- val = dma_read(IRQENABLE_L0);
+ val = dma_read(IRQENABLE_L0, lch);
val &= ~(1 << lch);
- dma_write(val, IRQENABLE_L0);
+ dma_write(val, IRQENABLE_L0, lch);
spin_unlock_irqrestore(&dma_chan_lock, flags);
}
@@ -792,17 +896,17 @@ int omap_request_dma(int dev_id, const char *dev_name,
* Disable the 1510 compatibility mode and set the sync device
* id.
*/
- dma_write(dev_id | (1 << 10), CCR(free_ch));
+ dma_write(dev_id | (1 << 10), CCR, free_ch);
} else if (cpu_is_omap7xx() || cpu_is_omap15xx()) {
- dma_write(dev_id, CCR(free_ch));
+ dma_write(dev_id, CCR, free_ch);
}
if (cpu_class_is_omap2()) {
omap2_enable_irq_lch(free_ch);
omap_enable_channel_irq(free_ch);
/* Clear the CSR register and IRQ status register */
- dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR(free_ch));
- dma_write(1 << free_ch, IRQSTATUS_L0);
+ dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR, free_ch);
+ dma_write(1 << free_ch, IRQSTATUS_L0, 0);
}
*dma_ch_out = free_ch;
@@ -823,23 +927,23 @@ void omap_free_dma(int lch)
if (cpu_class_is_omap1()) {
/* Disable all DMA interrupts for the channel. */
- dma_write(0, CICR(lch));
+ dma_write(0, CICR, lch);
/* Make sure the DMA transfer is stopped. */
- dma_write(0, CCR(lch));
+ dma_write(0, CCR, lch);
}
if (cpu_class_is_omap2()) {
omap2_disable_irq_lch(lch);
/* Clear the CSR register and IRQ status register */
- dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR(lch));
- dma_write(1 << lch, IRQSTATUS_L0);
+ dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR, lch);
+ dma_write(1 << lch, IRQSTATUS_L0, lch);
/* Disable all DMA interrupts for the channel. */
- dma_write(0, CICR(lch));
+ dma_write(0, CICR, lch);
/* Make sure the DMA transfer is stopped. */
- dma_write(0, CCR(lch));
+ dma_write(0, CCR, lch);
omap_clear_dma(lch);
}
@@ -880,7 +984,7 @@ omap_dma_set_global_params(int arb_rate, int max_fifo_depth, int tparams)
reg |= (0x3 & tparams) << 12;
reg |= (arb_rate & 0xff) << 16;
- dma_write(reg, GCR);
+ dma_write(reg, GCR, 0);
}
EXPORT_SYMBOL(omap_dma_set_global_params);
@@ -903,14 +1007,14 @@ omap_dma_set_prio_lch(int lch, unsigned char read_prio,
printk(KERN_ERR "Invalid channel id\n");
return -EINVAL;
}
- l = dma_read(CCR(lch));
+ l = dma_read(CCR, lch);
l &= ~((1 << 6) | (1 << 26));
if (cpu_is_omap2430() || cpu_is_omap34xx() || cpu_is_omap44xx())
l |= ((read_prio & 0x1) << 6) | ((write_prio & 0x1) << 26);
else
l |= ((read_prio & 0x1) << 6);
- dma_write(l, CCR(lch));
+ dma_write(l, CCR, lch);
return 0;
}
@@ -929,19 +1033,18 @@ void omap_clear_dma(int lch)
if (cpu_class_is_omap1()) {
u32 l;
- l = dma_read(CCR(lch));
+ l = dma_read(CCR, lch);
l &= ~OMAP_DMA_CCR_EN;
- dma_write(l, CCR(lch));
+ dma_write(l, CCR, lch);
/* Clear pending interrupts */
- l = dma_read(CSR(lch));
+ l = dma_read(CSR, lch);
}
if (cpu_class_is_omap2()) {
- int i;
- void __iomem *lch_base = omap_dma_base + OMAP_DMA4_CH_BASE(lch);
- for (i = 0; i < 0x44; i += 4)
- __raw_writel(0, lch_base + i);
+ int i = dma_common_ch_start;
+ for (; i <= dma_common_ch_end; i += 1)
+ dma_write(0, i, lch);
}
local_irq_restore(flags);
@@ -957,9 +1060,9 @@ void omap_start_dma(int lch)
* before starting dma transfer.
*/
if (cpu_is_omap15xx())
- dma_write(0, CPC(lch));
+ dma_write(0, CPC, lch);
else
- dma_write(0, CDAC(lch));
+ dma_write(0, CDAC, lch);
if (!omap_dma_in_1510_mode() && dma_chan[lch].next_lch != -1) {
int next_lch, cur_lch;
@@ -989,12 +1092,12 @@ void omap_start_dma(int lch)
(cpu_is_omap243x() && omap_type() <= OMAP2430_REV_ES1_0)) {
/* Errata: Need to write lch even if not using chaining */
- dma_write(lch, CLNK_CTRL(lch));
+ dma_write(lch, CLNK_CTRL, lch);
}
omap_enable_channel_irq(lch);
- l = dma_read(CCR(lch));
+ l = dma_read(CCR, lch);
/*
* Errata: Inter Frame DMA buffering issue (All OMAP2420 and
@@ -1010,7 +1113,7 @@ void omap_start_dma(int lch)
l |= OMAP_DMA_CCR_BUFFERING_DISABLE;
l |= OMAP_DMA_CCR_EN;
- dma_write(l, CCR(lch));
+ dma_write(l, CCR, lch);
dma_chan[lch].flags |= OMAP_DMA_ACTIVE;
}
@@ -1022,41 +1125,41 @@ void omap_stop_dma(int lch)
/* Disable all interrupts on the channel */
if (cpu_class_is_omap1())
- dma_write(0, CICR(lch));
+ dma_write(0, CICR, lch);
- l = dma_read(CCR(lch));
+ l = dma_read(CCR, lch);
/* OMAP3 Errata i541: sDMA FIFO draining does not finish */
if (cpu_is_omap34xx() && (l & OMAP_DMA_CCR_SEL_SRC_DST_SYNC)) {
int i = 0;
u32 sys_cf;
/* Configure No-Standby */
- l = dma_read(OCP_SYSCONFIG);
+ l = dma_read(OCP_SYSCONFIG, lch);
sys_cf = l;
l &= ~DMA_SYSCONFIG_MIDLEMODE_MASK;
l |= DMA_SYSCONFIG_MIDLEMODE(DMA_IDLEMODE_NO_IDLE);
- dma_write(l , OCP_SYSCONFIG);
+ dma_write(l , OCP_SYSCONFIG, 0);
- l = dma_read(CCR(lch));
+ l = dma_read(CCR, lch);
l &= ~OMAP_DMA_CCR_EN;
- dma_write(l, CCR(lch));
+ dma_write(l, CCR, lch);
/* Wait for sDMA FIFO drain */
- l = dma_read(CCR(lch));
+ l = dma_read(CCR, lch);
while (i < 100 && (l & (OMAP_DMA_CCR_RD_ACTIVE |
OMAP_DMA_CCR_WR_ACTIVE))) {
udelay(5);
i++;
- l = dma_read(CCR(lch));
+ l = dma_read(CCR, lch);
}
if (i >= 100)
printk(KERN_ERR "DMA drain did not complete on "
"lch %d\n", lch);
/* Restore OCP_SYSCONFIG */
- dma_write(sys_cf, OCP_SYSCONFIG);
+ dma_write(sys_cf, OCP_SYSCONFIG, lch);
} else {
l &= ~OMAP_DMA_CCR_EN;
- dma_write(l, CCR(lch));
+ dma_write(l, CCR, lch);
}
if (!omap_dma_in_1510_mode() && dma_chan[lch].next_lch != -1) {
@@ -1122,19 +1225,19 @@ dma_addr_t omap_get_dma_src_pos(int lch)
dma_addr_t offset = 0;
if (cpu_is_omap15xx())
- offset = dma_read(CPC(lch));
+ offset = dma_read(CPC, lch);
else
- offset = dma_read(CSAC(lch));
+ offset = dma_read(CSAC, lch);
/*
* omap 3.2/3.3 erratum: sometimes 0 is returned if CSAC/CDAC is
* read before the DMA controller finished disabling the channel.
*/
if (!cpu_is_omap15xx() && offset == 0)
- offset = dma_read(CSAC(lch));
+ offset = dma_read(CSAC, lch);
if (cpu_class_is_omap1())
- offset |= (dma_read(CSSA_U(lch)) << 16);
+ offset |= (dma_read(CSSA, lch) & 0xFFFF0000);
return offset;
}
@@ -1153,19 +1256,19 @@ dma_addr_t omap_get_dma_dst_pos(int lch)
dma_addr_t offset = 0;
if (cpu_is_omap15xx())
- offset = dma_read(CPC(lch));
+ offset = dma_read(CPC, lch);
else
- offset = dma_read(CDAC(lch));
+ offset = dma_read(CDAC, lch);
/*
* omap 3.2/3.3 erratum: sometimes 0 is returned if CSAC/CDAC is
* read before the DMA controller finished disabling the channel.
*/
if (!cpu_is_omap15xx() && offset == 0)
- offset = dma_read(CDAC(lch));
+ offset = dma_read(CDAC, lch);
if (cpu_class_is_omap1())
- offset |= (dma_read(CDSA_U(lch)) << 16);
+ offset |= (dma_read(CDSA, lch) & 0xFFFF0000);
return offset;
}
@@ -1173,7 +1276,7 @@ EXPORT_SYMBOL(omap_get_dma_dst_pos);
int omap_get_dma_active_status(int lch)
{
- return (dma_read(CCR(lch)) & OMAP_DMA_CCR_EN) != 0;
+ return (dma_read(CCR, lch) & OMAP_DMA_CCR_EN) != 0;
}
EXPORT_SYMBOL(omap_get_dma_active_status);
@@ -1186,7 +1289,7 @@ int omap_dma_running(void)
return 1;
for (lch = 0; lch < dma_chan_count; lch++)
- if (dma_read(CCR(lch)) & OMAP_DMA_CCR_EN)
+ if (dma_read(CCR, lch) & OMAP_DMA_CCR_EN)
return 1;
return 0;
@@ -1201,8 +1304,8 @@ void omap_dma_link_lch(int lch_head, int lch_queue)
{
if (omap_dma_in_1510_mode()) {
if (lch_head == lch_queue) {
- dma_write(dma_read(CCR(lch_head)) | (3 << 8),
- CCR(lch_head));
+ dma_write(dma_read(CCR, lch_head) | (3 << 8),
+ CCR, lch_head);
return;
}
printk(KERN_ERR "DMA linking is not supported in 1510 mode\n");
@@ -1228,8 +1331,8 @@ void omap_dma_unlink_lch(int lch_head, int lch_queue)
{
if (omap_dma_in_1510_mode()) {
if (lch_head == lch_queue) {
- dma_write(dma_read(CCR(lch_head)) & ~(3 << 8),
- CCR(lch_head));
+ dma_write(dma_read(CCR, lch_head) & ~(3 << 8),
+ CCR, lch_head);
return;
}
printk(KERN_ERR "DMA linking is not supported in 1510 mode\n");
@@ -1281,15 +1384,15 @@ static void create_dma_lch_chain(int lch_head, int lch_queue)
lch_queue;
}
- l = dma_read(CLNK_CTRL(lch_head));
+ l = dma_read(CLNK_CTRL, lch_head);
l &= ~(0x1f);
l |= lch_queue;
- dma_write(l, CLNK_CTRL(lch_head));
+ dma_write(l, CLNK_CTRL, lch_head);
- l = dma_read(CLNK_CTRL(lch_queue));
+ l = dma_read(CLNK_CTRL, lch_queue);
l &= ~(0x1f);
l |= (dma_chan[lch_queue].next_linked_ch);
- dma_write(l, CLNK_CTRL(lch_queue));
+ dma_write(l, CLNK_CTRL, lch_queue);
}
/**
@@ -1565,13 +1668,13 @@ int omap_dma_chain_a_transfer(int chain_id, int src_start, int dest_start,
/* Set the params to the free channel */
if (src_start != 0)
- dma_write(src_start, CSSA(lch));
+ dma_write(src_start, CSSA, lch);
if (dest_start != 0)
- dma_write(dest_start, CDSA(lch));
+ dma_write(dest_start, CDSA, lch);
/* Write the buffer size */
- dma_write(elem_count, CEN(lch));
- dma_write(frame_count, CFN(lch));
+ dma_write(elem_count, CEN, lch);
+ dma_write(frame_count, CFN, lch);
/*
* If the chain is dynamically linked,
@@ -1605,7 +1708,7 @@ int omap_dma_chain_a_transfer(int chain_id, int src_start, int dest_start,
dma_chan[lch].state = DMA_CH_QUEUED;
start_dma = 0;
if (0 == ((1 << 7) & dma_read(
- CCR(dma_chan[lch].prev_linked_ch)))) {
+ CCR, dma_chan[lch].prev_linked_ch))) {
disable_lnk(dma_chan[lch].
prev_linked_ch);
pr_debug("\n prev ch is stopped\n");
@@ -1621,7 +1724,7 @@ int omap_dma_chain_a_transfer(int chain_id, int src_start, int dest_start,
}
omap_enable_channel_irq(lch);
- l = dma_read(CCR(lch));
+ l = dma_read(CCR, lch);
if ((0 == (l & (1 << 24))))
l &= ~(1 << 25);
@@ -1632,12 +1735,12 @@ int omap_dma_chain_a_transfer(int chain_id, int src_start, int dest_start,
l |= (1 << 7);
dma_chan[lch].state = DMA_CH_STARTED;
pr_debug("starting %d\n", lch);
- dma_write(l, CCR(lch));
+ dma_write(l, CCR, lch);
} else
start_dma = 0;
} else {
if (0 == (l & (1 << 7)))
- dma_write(l, CCR(lch));
+ dma_write(l, CCR, lch);
}
dma_chan[lch].flags |= OMAP_DMA_ACTIVE;
}
@@ -1682,7 +1785,7 @@ int omap_start_dma_chain_transfers(int chain_id)
omap_enable_channel_irq(channels[0]);
}
- l = dma_read(CCR(channels[0]));
+ l = dma_read(CCR, channels[0]);
l |= (1 << 7);
dma_linked_lch[chain_id].chain_state = DMA_CHAIN_STARTED;
dma_chan[channels[0]].state = DMA_CH_STARTED;
@@ -1691,7 +1794,7 @@ int omap_start_dma_chain_transfers(int chain_id)
l &= ~(1 << 25);
else
l |= (1 << 25);
- dma_write(l, CCR(channels[0]));
+ dma_write(l, CCR, channels[0]);
dma_chan[channels[0]].flags |= OMAP_DMA_ACTIVE;
@@ -1730,18 +1833,18 @@ int omap_stop_dma_chain_transfers(int chain_id)
* DMA Errata:
* Special programming model needed to disable DMA before end of block
*/
- sys_cf = dma_read(OCP_SYSCONFIG);
+ sys_cf = dma_read(OCP_SYSCONFIG, 0);
l = sys_cf;
/* Middle mode reg set no Standby */
l &= ~((1 << 12)|(1 << 13));
- dma_write(l, OCP_SYSCONFIG);
+ dma_write(l, OCP_SYSCONFIG, 0);
for (i = 0; i < dma_linked_lch[chain_id].no_of_lchs_linked; i++) {
/* Stop the Channel transmission */
- l = dma_read(CCR(channels[i]));
+ l = dma_read(CCR, channels[i]);
l &= ~(1 << 7);
- dma_write(l, CCR(channels[i]));
+ dma_write(l, CCR, channels[i]);
/* Disable the link in all the channels */
disable_lnk(channels[i]);
@@ -1754,7 +1857,7 @@ int omap_stop_dma_chain_transfers(int chain_id)
OMAP_DMA_CHAIN_QINIT(chain_id);
/* Errata - put in the old value */
- dma_write(sys_cf, OCP_SYSCONFIG);
+ dma_write(sys_cf, OCP_SYSCONFIG, 0);
return 0;
}
@@ -1796,8 +1899,8 @@ int omap_get_dma_chain_index(int chain_id, int *ei, int *fi)
/* Get the current channel */
lch = channels[dma_linked_lch[chain_id].q_head];
- *ei = dma_read(CCEN(lch));
- *fi = dma_read(CCFN(lch));
+ *ei = dma_read(CCEN, lch);
+ *fi = dma_read(CCFN, lch);
return 0;
}
@@ -1834,7 +1937,7 @@ int omap_get_dma_chain_dst_pos(int chain_id)
/* Get the current channel */
lch = channels[dma_linked_lch[chain_id].q_head];
- return dma_read(CDAC(lch));
+ return dma_read(CDAC, lch);
}
EXPORT_SYMBOL(omap_get_dma_chain_dst_pos);
@@ -1868,7 +1971,7 @@ int omap_get_dma_chain_src_pos(int chain_id)
/* Get the current channel */
lch = channels[dma_linked_lch[chain_id].q_head];
- return dma_read(CSAC(lch));
+ return dma_read(CSAC, lch);
}
EXPORT_SYMBOL(omap_get_dma_chain_src_pos);
#endif /* ifndef CONFIG_ARCH_OMAP1 */
@@ -1885,7 +1988,7 @@ static int omap1_dma_handle_ch(int ch)
csr = dma_chan[ch].saved_csr;
dma_chan[ch].saved_csr = 0;
} else
- csr = dma_read(CSR(ch));
+ csr = dma_read(CSR, ch);
if (enable_1510_mode && ch <= 2 && (csr >> 7) != 0) {
dma_chan[ch + 6].saved_csr = csr >> 7;
csr &= 0x7f;
@@ -1938,13 +2041,13 @@ static irqreturn_t omap1_dma_irq_handler(int irq, void *dev_id)
static int omap2_dma_handle_ch(int ch)
{
- u32 status = dma_read(CSR(ch));
+ u32 status = dma_read(CSR, ch);
if (!status) {
if (printk_ratelimit())
printk(KERN_WARNING "Spurious DMA IRQ for lch %d\n",
ch);
- dma_write(1 << ch, IRQSTATUS_L0);
+ dma_write(1 << ch, IRQSTATUS_L0, ch);
return 0;
}
if (unlikely(dma_chan[ch].dev_id == -1)) {
@@ -1968,9 +2071,9 @@ static int omap2_dma_handle_ch(int ch)
*/
u32 ccr;
- ccr = dma_read(CCR(ch));
+ ccr = dma_read(CCR, ch);
ccr &= ~OMAP_DMA_CCR_EN;
- dma_write(ccr, CCR(ch));
+ dma_write(ccr, CCR, ch);
dma_chan[ch].flags &= ~OMAP_DMA_ACTIVE;
}
}
@@ -1981,16 +2084,16 @@ static int omap2_dma_handle_ch(int ch)
printk(KERN_INFO "DMA misaligned error with device %d\n",
dma_chan[ch].dev_id);
- dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR(ch));
- dma_write(1 << ch, IRQSTATUS_L0);
+ dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR, ch);
+ dma_write(1 << ch, IRQSTATUS_L0, ch);
/* read back the register to flush the write */
- dma_read(IRQSTATUS_L0);
+ dma_read(IRQSTATUS_L0, ch);
/* If the ch is not chained then chain_id will be -1 */
if (dma_chan[ch].chain_id != -1) {
int chain_id = dma_chan[ch].chain_id;
dma_chan[ch].state = DMA_CH_NOTSTARTED;
- if (dma_read(CLNK_CTRL(ch)) & (1 << 15))
+ if (dma_read(CLNK_CTRL, ch) & (1 << 15))
dma_chan[dma_chan[ch].next_linked_ch].state =
DMA_CH_STARTED;
if (dma_linked_lch[chain_id].chain_mode ==
@@ -2000,10 +2103,10 @@ static int omap2_dma_handle_ch(int ch)
if (!OMAP_DMA_CHAIN_QEMPTY(chain_id))
OMAP_DMA_CHAIN_INCQHEAD(chain_id);
- status = dma_read(CSR(ch));
+ status = dma_read(CSR, ch);
}
- dma_write(status, CSR(ch));
+ dma_write(status, CSR, ch);
if (likely(dma_chan[ch].callback != NULL))
dma_chan[ch].callback(ch, status, dma_chan[ch].data);
@@ -2017,13 +2120,13 @@ static irqreturn_t omap2_dma_irq_handler(int irq, void *dev_id)
u32 val, enable_reg;
int i;
- val = dma_read(IRQSTATUS_L0);
+ val = dma_read(IRQSTATUS_L0, 0);
if (val == 0) {
if (printk_ratelimit())
printk(KERN_WARNING "Spurious DMA IRQ\n");
return IRQ_HANDLED;
}
- enable_reg = dma_read(IRQENABLE_L0);
+ enable_reg = dma_read(IRQENABLE_L0, 0);
val &= enable_reg; /* Dispatch only relevant interrupts */
for (i = 0; i < dma_lch_count && val != 0; i++) {
if (val & 1)
@@ -2049,21 +2152,21 @@ static struct irqaction omap24xx_dma_irq;
void omap_dma_global_context_save(void)
{
omap_dma_global_context.dma_irqenable_l0 =
- dma_read(IRQENABLE_L0);
+ dma_read(IRQENABLE_L0, 0);
omap_dma_global_context.dma_ocp_sysconfig =
- dma_read(OCP_SYSCONFIG);
- omap_dma_global_context.dma_gcr = dma_read(GCR);
+ dma_read(OCP_SYSCONFIG, 0);
+ omap_dma_global_context.dma_gcr = dma_read(GCR, 0);
}
void omap_dma_global_context_restore(void)
{
int ch;
- dma_write(omap_dma_global_context.dma_gcr, GCR);
+ dma_write(omap_dma_global_context.dma_gcr, GCR, 0);
dma_write(omap_dma_global_context.dma_ocp_sysconfig,
- OCP_SYSCONFIG);
+ OCP_SYSCONFIG, 0);
dma_write(omap_dma_global_context.dma_irqenable_l0,
- IRQENABLE_L0);
+ IRQENABLE_L0, 0);
/*
* A bug in ROM code leaves IRQ status for channels 0 and 1 uncleared
@@ -2072,7 +2175,7 @@ void omap_dma_global_context_restore(void)
* affects only secure devices.
*/
if (cpu_is_omap34xx() && (omap_type() != OMAP2_DEVICE_TYPE_GP))
- dma_write(0x3 , IRQSTATUS_L0);
+ dma_write(0x3 , IRQSTATUS_L0, 0);
for (ch = 0; ch < dma_chan_count; ch++)
if (dma_chan[ch].dev_id != -1)
@@ -2106,6 +2209,21 @@ static int __init omap_init_dma(void)
omap_dma_base = ioremap(base, SZ_4K);
BUG_ON(!omap_dma_base);
+ if (cpu_class_is_omap1()) {
+ dma_stride = 0x40;
+ reg_map = reg_map_omap1;
+ dma_common_ch_start = CPC;
+ dma_common_ch_end = COLOR;
+ } else {
+ dma_stride = 0x60;
+ reg_map = reg_map_omap2;
+ dma_common_ch_start = CSDP;
+ if (cpu_is_omap3630() || cpu_is_omap4430())
+ dma_common_ch_end = CCDN;
+ else
+ dma_common_ch_end = CCFN;
+ }
+
if (cpu_class_is_omap2() && omap_dma_reserve_channels
&& (omap_dma_reserve_channels <= dma_lch_count))
dma_lch_count = omap_dma_reserve_channels;
@@ -2132,26 +2250,23 @@ static int __init omap_init_dma(void)
enable_1510_mode = 1;
} else if (cpu_is_omap16xx() || cpu_is_omap7xx()) {
printk(KERN_INFO "OMAP DMA hardware version %d\n",
- dma_read(HW_ID));
+ dma_read(HW_ID, 0));
printk(KERN_INFO "DMA capabilities: %08x:%08x:%04x:%04x:%04x\n",
- (dma_read(CAPS_0_U) << 16) |
- dma_read(CAPS_0_L),
- (dma_read(CAPS_1_U) << 16) |
- dma_read(CAPS_1_L),
- dma_read(CAPS_2), dma_read(CAPS_3),
- dma_read(CAPS_4));
+ dma_read(CAPS_0, 0), dma_read(CAPS_1, 0),
+ dma_read(CAPS_2, 0), dma_read(CAPS_3, 0),
+ dma_read(CAPS_4, 0));
if (!enable_1510_mode) {
u16 w;
/* Disable OMAP 3.0/3.1 compatibility mode. */
- w = dma_read(GSCR);
+ w = dma_read(GSCR, 0);
w |= 1 << 3;
- dma_write(w, GSCR);
+ dma_write(w, GSCR, 0);
dma_chan_count = 16;
} else
dma_chan_count = 9;
} else if (cpu_class_is_omap2()) {
- u8 revision = dma_read(REVISION) & 0xff;
+ u8 revision = dma_read(REVISION, 0) & 0xff;
printk(KERN_INFO "OMAP DMA hardware revision %d.%d\n",
revision >> 4, revision & 0xf);
dma_chan_count = dma_lch_count;
@@ -2210,14 +2325,14 @@ static int __init omap_init_dma(void)
if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
/* Enable smartidle idlemodes and autoidle */
- u32 v = dma_read(OCP_SYSCONFIG);
+ u32 v = dma_read(OCP_SYSCONFIG, 0);
v &= ~(DMA_SYSCONFIG_MIDLEMODE_MASK |
DMA_SYSCONFIG_SIDLEMODE_MASK |
DMA_SYSCONFIG_AUTOIDLE);
v |= (DMA_SYSCONFIG_MIDLEMODE(DMA_IDLEMODE_SMARTIDLE) |
DMA_SYSCONFIG_SIDLEMODE(DMA_IDLEMODE_SMARTIDLE) |
DMA_SYSCONFIG_AUTOIDLE);
- dma_write(v , OCP_SYSCONFIG);
+ dma_write(v , OCP_SYSCONFIG, 0);
/* reserve dma channels 0 and 1 in high security devices */
if (cpu_is_omap34xx() &&
(omap_type() != OMAP2_DEVICE_TYPE_GP)) {
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-21 10:28:46 +0000