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@@ -30,6 +30,7 @@
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#include <linux/sh_dma.h>
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#include <linux/sh_intc.h>
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#include <linux/sh_timer.h>
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+#include <mach/dma-register.h>
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#include <mach/hardware.h>
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#include <mach/irqs.h>
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#include <mach/sh73a0.h>
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@@ -415,32 +416,6 @@ static struct platform_device i2c4_device = {
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.num_resources = ARRAY_SIZE(i2c4_resources),
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};
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-/* Transmit sizes and respective CHCR register values */
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-enum {
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- XMIT_SZ_8BIT = 0,
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- XMIT_SZ_16BIT = 1,
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- XMIT_SZ_32BIT = 2,
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- XMIT_SZ_64BIT = 7,
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- XMIT_SZ_128BIT = 3,
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- XMIT_SZ_256BIT = 4,
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- XMIT_SZ_512BIT = 5,
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-};
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-
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-/* log2(size / 8) - used to calculate number of transfers */
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-#define TS_SHIFT { \
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- [XMIT_SZ_8BIT] = 0, \
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- [XMIT_SZ_16BIT] = 1, \
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- [XMIT_SZ_32BIT] = 2, \
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- [XMIT_SZ_64BIT] = 3, \
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- [XMIT_SZ_128BIT] = 4, \
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- [XMIT_SZ_256BIT] = 5, \
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- [XMIT_SZ_512BIT] = 6, \
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-}
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-
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-#define TS_INDEX2VAL(i) ((((i) & 3) << 3) | (((i) & 0xc) << (20 - 2)))
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-#define CHCR_TX(xmit_sz) (DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL((xmit_sz)))
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-#define CHCR_RX(xmit_sz) (DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL((xmit_sz)))
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-
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static const struct sh_dmae_slave_config sh73a0_dmae_slaves[] = {
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{
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.slave_id = SHDMA_SLAVE_SCIF0_TX,
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@@ -604,19 +579,17 @@ static const struct sh_dmae_channel sh73a0_dmae_channels[] = {
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DMAE_CHANNEL(0x8980),
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};
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-static const unsigned int ts_shift[] = TS_SHIFT;
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-
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static struct sh_dmae_pdata sh73a0_dmae_platform_data = {
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.slave = sh73a0_dmae_slaves,
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.slave_num = ARRAY_SIZE(sh73a0_dmae_slaves),
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.channel = sh73a0_dmae_channels,
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.channel_num = ARRAY_SIZE(sh73a0_dmae_channels),
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- .ts_low_shift = 3,
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- .ts_low_mask = 0x18,
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- .ts_high_shift = (20 - 2), /* 2 bits for shifted low TS */
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- .ts_high_mask = 0x00300000,
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- .ts_shift = ts_shift,
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- .ts_shift_num = ARRAY_SIZE(ts_shift),
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+ .ts_low_shift = TS_LOW_SHIFT,
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+ .ts_low_mask = TS_LOW_BIT << TS_LOW_SHIFT,
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+ .ts_high_shift = TS_HI_SHIFT,
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+ .ts_high_mask = TS_HI_BIT << TS_HI_SHIFT,
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+ .ts_shift = dma_ts_shift,
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+ .ts_shift_num = ARRAY_SIZE(dma_ts_shift),
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.dmaor_init = DMAOR_DME,
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};
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@@ -651,6 +624,116 @@ static struct platform_device dma0_device = {
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},
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};
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+/* MPDMAC */
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+static const struct sh_dmae_slave_config sh73a0_mpdma_slaves[] = {
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+ {
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+ .slave_id = SHDMA_SLAVE_FSI2A_RX,
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+ .addr = 0xec230020,
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+ .chcr = CHCR_RX(XMIT_SZ_32BIT),
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+ .mid_rid = 0xd6, /* CHECK ME */
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+ }, {
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+ .slave_id = SHDMA_SLAVE_FSI2A_TX,
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+ .addr = 0xec230024,
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+ .chcr = CHCR_TX(XMIT_SZ_32BIT),
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+ .mid_rid = 0xd5, /* CHECK ME */
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+ }, {
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+ .slave_id = SHDMA_SLAVE_FSI2C_RX,
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+ .addr = 0xec230060,
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+ .chcr = CHCR_RX(XMIT_SZ_32BIT),
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+ .mid_rid = 0xda, /* CHECK ME */
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+ }, {
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+ .slave_id = SHDMA_SLAVE_FSI2C_TX,
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+ .addr = 0xec230064,
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+ .chcr = CHCR_TX(XMIT_SZ_32BIT),
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+ .mid_rid = 0xd9, /* CHECK ME */
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+ }, {
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+ .slave_id = SHDMA_SLAVE_FSI2B_RX,
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+ .addr = 0xec240020,
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+ .chcr = CHCR_RX(XMIT_SZ_32BIT),
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+ .mid_rid = 0x8e, /* CHECK ME */
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+ }, {
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+ .slave_id = SHDMA_SLAVE_FSI2B_TX,
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+ .addr = 0xec240024,
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+ .chcr = CHCR_RX(XMIT_SZ_32BIT),
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+ .mid_rid = 0x8d, /* CHECK ME */
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+ }, {
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+ .slave_id = SHDMA_SLAVE_FSI2D_RX,
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+ .addr = 0xec240060,
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+ .chcr = CHCR_RX(XMIT_SZ_32BIT),
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+ .mid_rid = 0x9a, /* CHECK ME */
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+ },
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+};
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+
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+#define MPDMA_CHANNEL(a, b, c) \
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+{ \
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+ .offset = a, \
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+ .dmars = b, \
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+ .dmars_bit = c, \
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+ .chclr_offset = (0x220 - 0x20) + a \
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+}
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+
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+static const struct sh_dmae_channel sh73a0_mpdma_channels[] = {
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+ MPDMA_CHANNEL(0x00, 0, 0),
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+ MPDMA_CHANNEL(0x10, 0, 8),
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+ MPDMA_CHANNEL(0x20, 4, 0),
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+ MPDMA_CHANNEL(0x30, 4, 8),
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+ MPDMA_CHANNEL(0x50, 8, 0),
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+ MPDMA_CHANNEL(0x70, 8, 8),
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+};
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+
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+static struct sh_dmae_pdata sh73a0_mpdma_platform_data = {
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+ .slave = sh73a0_mpdma_slaves,
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+ .slave_num = ARRAY_SIZE(sh73a0_mpdma_slaves),
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+ .channel = sh73a0_mpdma_channels,
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+ .channel_num = ARRAY_SIZE(sh73a0_mpdma_channels),
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+ .ts_low_shift = TS_LOW_SHIFT,
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+ .ts_low_mask = TS_LOW_BIT << TS_LOW_SHIFT,
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+ .ts_high_shift = TS_HI_SHIFT,
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+ .ts_high_mask = TS_HI_BIT << TS_HI_SHIFT,
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+ .ts_shift = dma_ts_shift,
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+ .ts_shift_num = ARRAY_SIZE(dma_ts_shift),
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+ .dmaor_init = DMAOR_DME,
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+ .chclr_present = 1,
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+};
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+
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+/* Resource order important! */
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+static struct resource sh73a0_mpdma_resources[] = {
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+ {
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+ /* Channel registers and DMAOR */
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+ .start = 0xec618020,
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+ .end = 0xec61828f,
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+ .flags = IORESOURCE_MEM,
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+ },
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+ {
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+ /* DMARSx */
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+ .start = 0xec619000,
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+ .end = 0xec61900b,
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+ .flags = IORESOURCE_MEM,
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+ },
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+ {
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+ .name = "error_irq",
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+ .start = gic_spi(181),
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+ .end = gic_spi(181),
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+ .flags = IORESOURCE_IRQ,
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+ },
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+ {
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+ /* IRQ for channels 0-5 */
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+ .start = gic_spi(175),
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+ .end = gic_spi(180),
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+ .flags = IORESOURCE_IRQ,
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+ },
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+};
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+
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+static struct platform_device mpdma0_device = {
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+ .name = "sh-dma-engine",
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+ .id = 1,
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+ .resource = sh73a0_mpdma_resources,
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+ .num_resources = ARRAY_SIZE(sh73a0_mpdma_resources),
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+ .dev = {
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+ .platform_data = &sh73a0_mpdma_platform_data,
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+ },
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+};
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+
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static struct platform_device *sh73a0_early_devices[] __initdata = {
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&scif0_device,
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&scif1_device,
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@@ -673,6 +756,7 @@ static struct platform_device *sh73a0_late_devices[] __initdata = {
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&i2c3_device,
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&i2c4_device,
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&dma0_device,
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+ &mpdma0_device,
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};
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#define SRCR2 0xe61580b0
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