From afe48049ab1d0ca83afe45f9d5116bf4507741eb Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 17 Jun 2011 08:21:10 +0000 Subject: [PATCH] ARM: mach-shmobile: sh7372: Add USB-DMAC support Signed-off-by: Kuninori Morimoto Signed-off-by: Paul Mundt --- arch/arm/mach-shmobile/clock-sh7372.c | 5 +- arch/arm/mach-shmobile/include/mach/sh7372.h | 4 + arch/arm/mach-shmobile/setup-sh7372.c | 146 +++++++++++++++++++ 3 files changed, 154 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-shmobile/clock-sh7372.c b/arch/arm/mach-shmobile/clock-sh7372.c index c0800d83971e..c239ab10c95b 100644 --- a/arch/arm/mach-shmobile/clock-sh7372.c +++ b/arch/arm/mach-shmobile/clock-sh7372.c @@ -509,7 +509,7 @@ enum { MSTP001, MSTP118, MSTP117, MSTP116, MSTP113, MSTP106, MSTP101, MSTP100, MSTP223, - MSTP218, MSTP217, MSTP216, + MSTP214, MSTP218, MSTP217, MSTP216, MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200, MSTP329, MSTP328, MSTP323, MSTP322, MSTP314, MSTP313, MSTP312, MSTP423, MSTP415, MSTP413, MSTP411, MSTP410, MSTP406, MSTP403, @@ -538,6 +538,7 @@ static struct clk mstp_clks[MSTP_NR] = { [MSTP218] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 18, 0), /* DMAC1 */ [MSTP217] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 17, 0), /* DMAC2 */ [MSTP216] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 16, 0), /* DMAC3 */ + [MSTP214] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 14, 0), /* USBDMAC */ [MSTP207] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 7, 0), /* SCIFA5 */ [MSTP206] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 6, 0), /* SCIFB */ [MSTP204] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 4, 0), /* SCIFA0 */ @@ -633,6 +634,8 @@ static struct clk_lookup lookups[] = { CLKDEV_DEV_ID("sh-dma-engine.0", &mstp_clks[MSTP218]), /* DMAC1 */ CLKDEV_DEV_ID("sh-dma-engine.1", &mstp_clks[MSTP217]), /* DMAC2 */ CLKDEV_DEV_ID("sh-dma-engine.2", &mstp_clks[MSTP216]), /* DMAC3 */ + CLKDEV_DEV_ID("sh-dma-engine.3", &mstp_clks[MSTP214]), /* USB-DMAC0 */ + CLKDEV_DEV_ID("sh-dma-engine.4", &mstp_clks[MSTP214]), /* USB-DMAC1 */ CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP207]), /* SCIFA5 */ CLKDEV_DEV_ID("sh-sci.6", &mstp_clks[MSTP206]), /* SCIFB */ CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]), /* SCIFA0 */ diff --git a/arch/arm/mach-shmobile/include/mach/sh7372.h b/arch/arm/mach-shmobile/include/mach/sh7372.h index df20d7670172..51db9d3a2cac 100644 --- a/arch/arm/mach-shmobile/include/mach/sh7372.h +++ b/arch/arm/mach-shmobile/include/mach/sh7372.h @@ -458,6 +458,10 @@ enum { SHDMA_SLAVE_SDHI2_TX, SHDMA_SLAVE_MMCIF_RX, SHDMA_SLAVE_MMCIF_TX, + SHDMA_SLAVE_USB0_TX, + SHDMA_SLAVE_USB0_RX, + SHDMA_SLAVE_USB1_TX, + SHDMA_SLAVE_USB1_RX, }; extern struct clk sh7372_extal1_clk; diff --git a/arch/arm/mach-shmobile/setup-sh7372.c b/arch/arm/mach-shmobile/setup-sh7372.c index cd807eea69e2..f2a58d48bfb4 100644 --- a/arch/arm/mach-shmobile/setup-sh7372.c +++ b/arch/arm/mach-shmobile/setup-sh7372.c @@ -602,6 +602,150 @@ static struct platform_device dma2_device = { }, }; +/* + * 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 @@ static struct platform_device *sh7372_late_devices[] __initdata = { &dma0_device, &dma1_device, &dma2_device, + &usb_dma0_device, + &usb_dma1_device, &vpu_device, &veu0_device, &veu1_device,