ARM: mach-shmobile: sh7372: Add USB-DMAC support
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/arm/mach-shmobile/setup-sh7372.c b/arch/arm/mach-shmobile/setup-sh7372.c
index cd807ee..f2a58d4 100644
--- a/arch/arm/mach-shmobile/setup-sh7372.c
+++ b/arch/arm/mach-shmobile/setup-sh7372.c
@@ -602,6 +602,150 @@
},
};
+/*
+ * USB-DMAC
+ */
+
+unsigned int usbts_shift[] = {3, 4, 5};
+
+enum {
+ XMIT_SZ_8BYTE = 0,
+ XMIT_SZ_16BYTE = 1,
+ XMIT_SZ_32BYTE = 2,
+};
+
+#define USBTS_INDEX2VAL(i) (((i) & 3) << 6)
+
+static const struct sh_dmae_channel sh7372_usb_dmae_channels[] = {
+ {
+ .offset = 0,
+ }, {
+ .offset = 0x20,
+ },
+};
+
+/* USB DMAC0 */
+static const struct sh_dmae_slave_config sh7372_usb_dmae0_slaves[] = {
+ {
+ .slave_id = SHDMA_SLAVE_USB0_TX,
+ .chcr = USBTS_INDEX2VAL(XMIT_SZ_8BYTE),
+ }, {
+ .slave_id = SHDMA_SLAVE_USB0_RX,
+ .chcr = USBTS_INDEX2VAL(XMIT_SZ_8BYTE),
+ },
+};
+
+static struct sh_dmae_pdata usb_dma0_platform_data = {
+ .slave = sh7372_usb_dmae0_slaves,
+ .slave_num = ARRAY_SIZE(sh7372_usb_dmae0_slaves),
+ .channel = sh7372_usb_dmae_channels,
+ .channel_num = ARRAY_SIZE(sh7372_usb_dmae_channels),
+ .ts_low_shift = 6,
+ .ts_low_mask = 0xc0,
+ .ts_high_shift = 0,
+ .ts_high_mask = 0,
+ .ts_shift = usbts_shift,
+ .ts_shift_num = ARRAY_SIZE(usbts_shift),
+ .dmaor_init = DMAOR_DME,
+ .chcr_offset = 0x14,
+ .chcr_ie_bit = 1 << 5,
+ .dmaor_is_32bit = 1,
+ .needs_tend_set = 1,
+ .no_dmars = 1,
+};
+
+static struct resource sh7372_usb_dmae0_resources[] = {
+ {
+ /* Channel registers and DMAOR */
+ .start = 0xe68a0020,
+ .end = 0xe68a0064 - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ /* VCR/SWR/DMICR */
+ .start = 0xe68a0000,
+ .end = 0xe68a0014 - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ /* IRQ for channels */
+ .start = evt2irq(0x0a00),
+ .end = evt2irq(0x0a00),
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device usb_dma0_device = {
+ .name = "sh-dma-engine",
+ .id = 3,
+ .resource = sh7372_usb_dmae0_resources,
+ .num_resources = ARRAY_SIZE(sh7372_usb_dmae0_resources),
+ .dev = {
+ .platform_data = &usb_dma0_platform_data,
+ },
+};
+
+/* USB DMAC1 */
+static const struct sh_dmae_slave_config sh7372_usb_dmae1_slaves[] = {
+ {
+ .slave_id = SHDMA_SLAVE_USB1_TX,
+ .chcr = USBTS_INDEX2VAL(XMIT_SZ_8BYTE),
+ }, {
+ .slave_id = SHDMA_SLAVE_USB1_RX,
+ .chcr = USBTS_INDEX2VAL(XMIT_SZ_8BYTE),
+ },
+};
+
+static struct sh_dmae_pdata usb_dma1_platform_data = {
+ .slave = sh7372_usb_dmae1_slaves,
+ .slave_num = ARRAY_SIZE(sh7372_usb_dmae1_slaves),
+ .channel = sh7372_usb_dmae_channels,
+ .channel_num = ARRAY_SIZE(sh7372_usb_dmae_channels),
+ .ts_low_shift = 6,
+ .ts_low_mask = 0xc0,
+ .ts_high_shift = 0,
+ .ts_high_mask = 0,
+ .ts_shift = usbts_shift,
+ .ts_shift_num = ARRAY_SIZE(usbts_shift),
+ .dmaor_init = DMAOR_DME,
+ .chcr_offset = 0x14,
+ .chcr_ie_bit = 1 << 5,
+ .dmaor_is_32bit = 1,
+ .needs_tend_set = 1,
+ .no_dmars = 1,
+};
+
+static struct resource sh7372_usb_dmae1_resources[] = {
+ {
+ /* Channel registers and DMAOR */
+ .start = 0xe68c0020,
+ .end = 0xe68c0064 - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ /* VCR/SWR/DMICR */
+ .start = 0xe68c0000,
+ .end = 0xe68c0014 - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ /* IRQ for channels */
+ .start = evt2irq(0x1d00),
+ .end = evt2irq(0x1d00),
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device usb_dma1_device = {
+ .name = "sh-dma-engine",
+ .id = 4,
+ .resource = sh7372_usb_dmae1_resources,
+ .num_resources = ARRAY_SIZE(sh7372_usb_dmae1_resources),
+ .dev = {
+ .platform_data = &usb_dma1_platform_data,
+ },
+};
+
/* VPU */
static struct uio_info vpu_platform_data = {
.name = "VPU5HG",
@@ -829,6 +973,8 @@
&dma0_device,
&dma1_device,
&dma2_device,
+ &usb_dma0_device,
+ &usb_dma1_device,
&vpu_device,
&veu0_device,
&veu1_device,