ARM: shmobile: r8a7778: add USB Func DMAEngine support

HPB-DMAC has 2 channel for USB Func (= D0/D1)
D0 is used as Tx, D1 is used as Rx on this patch

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/mach-shmobile/include/mach/r8a7778.h b/arch/arm/mach-shmobile/include/mach/r8a7778.h
index 72c9d37..f4076a5 100644 (file)
--- a/arch/arm/mach-shmobile/include/mach/r8a7778.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7778.h
@@ -62,6 +62,8 @@ enum {
        HPBDMA_SLAVE_HPBIF7_RX,
        HPBDMA_SLAVE_HPBIF8_TX,
        HPBDMA_SLAVE_HPBIF8_RX,
+       HPBDMA_SLAVE_USBFUNC_TX,
+       HPBDMA_SLAVE_USBFUNC_RX,
 };
 
 extern void r8a7778_add_standard_devices(void);

diff --git a/arch/arm/mach-shmobile/setup-r8a7778.c b/arch/arm/mach-shmobile/setup-r8a7778.c
index e786338..7ea6308 100644 (file)
--- a/arch/arm/mach-shmobile/setup-r8a7778.c
+++ b/arch/arm/mach-shmobile/setup-r8a7778.c
@@ -394,6 +394,22 @@ static const struct hpb_dmae_slave_config hpb_dmae_slaves[] = {
                .port   = 0x0D0C,
                .flags  = HPB_DMAE_SET_ASYNC_RESET | HPB_DMAE_SET_ASYNC_MODE,
                .dma_ch = 22,
+       }, {
+               .id     = HPBDMA_SLAVE_USBFUNC_TX, /* for D0 */
+               .addr   = 0xffe60018,
+               .dcr    = HPB_DMAE_DCR_SPDS_32BIT |
+                         HPB_DMAE_DCR_DMDL |
+                         HPB_DMAE_DCR_DPDS_32BIT,
+               .port   = 0x0000,
+               .dma_ch = 14,
+       }, {
+               .id     = HPBDMA_SLAVE_USBFUNC_RX, /* for D1 */
+               .addr   = 0xffe6001c,
+               .dcr    = HPB_DMAE_DCR_SMDL |
+                         HPB_DMAE_DCR_SPDS_32BIT |
+                         HPB_DMAE_DCR_DPDS_32BIT,
+               .port   = 0x0101,
+               .dma_ch = 15,
        },
 
        HPBDMA_SSI(0),
@@ -418,6 +434,8 @@ static const struct hpb_dmae_slave_config hpb_dmae_slaves[] = {
 };
 
 static const struct hpb_dmae_channel hpb_dmae_channels[] = {
+       HPB_DMAE_CHANNEL(0x7c, HPBDMA_SLAVE_USBFUNC_TX), /* ch. 14 */
+       HPB_DMAE_CHANNEL(0x7c, HPBDMA_SLAVE_USBFUNC_RX), /* ch. 15 */
        HPB_DMAE_CHANNEL(0x7e, HPBDMA_SLAVE_SDHI0_TX), /* ch. 21 */
        HPB_DMAE_CHANNEL(0x7e, HPBDMA_SLAVE_SDHI0_RX), /* ch. 22 */
        HPB_DMAE_CHANNEL(0x7f, HPBDMA_SLAVE_SSI0_TX),   /* ch. 28 */