From 4f3d7f65e9d541566c87de2af2d3b066bae78116 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Mon, 25 Jun 2012 03:41:09 -0700 Subject: [PATCH 1/5] ARM: shmobile: add common extra gpio functions Current gpio frame work doesn't have the method to control just pull up/down/free, but some SH-ARM boards need such kind of operation. This patch adds common extra gpio functions for SH-ARM. But these functions should be replaced by correct gpio function in the future. Signed-off-by: Kuninori Morimoto Acked-by: Magnus Damm Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-shmobile/include/mach/gpio.h | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/arch/arm/mach-shmobile/include/mach/gpio.h b/arch/arm/mach-shmobile/include/mach/gpio.h index de795b42232a..844507d937cb 100644 --- a/arch/arm/mach-shmobile/include/mach/gpio.h +++ b/arch/arm/mach-shmobile/include/mach/gpio.h @@ -13,6 +13,7 @@ #include #include #include +#include #ifdef CONFIG_GPIOLIB @@ -27,4 +28,35 @@ static inline int irq_to_gpio(unsigned int irq) #endif /* CONFIG_GPIOLIB */ +/* + * FIXME !! + * + * current gpio frame work doesn't have + * the method to control only pull up/down/free. + * this function should be replaced by correct gpio function + */ +static inline void __init gpio_direction_none(u32 addr) +{ + __raw_writeb(0x00, addr); +} + +static inline void __init gpio_request_pullup(u32 addr) +{ + u8 data = __raw_readb(addr); + + data &= 0x0F; + data |= 0xC0; + __raw_writeb(data, addr); +} + +static inline void __init gpio_request_pulldown(u32 addr) +{ + u8 data = __raw_readb(addr); + + data &= 0x0F; + data |= 0xA0; + + __raw_writeb(data, addr); +} + #endif /* __ASM_ARCH_GPIO_H */ From 5ca1d44f6a99b29ab164a06f4ec71950d6939fb5 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Mon, 25 Jun 2012 03:43:00 -0700 Subject: [PATCH 2/5] ARM: shmobile: add common DMAEngine definitions Current shmobile have DMAEngine specific settings on each CPU code, but SH-ARM DMAC use same value. This patch adds new dma-register.h header to share definitions and reduce a waste of code on SH-ARM architecture. Signed-off-by: Kuninori Morimoto Acked-by: Magnus Damm Signed-off-by: Rafael J. Wysocki --- .../mach-shmobile/include/mach/dma-register.h | 84 +++++++++++++++++++ 1 file changed, 84 insertions(+) create mode 100644 arch/arm/mach-shmobile/include/mach/dma-register.h diff --git a/arch/arm/mach-shmobile/include/mach/dma-register.h b/arch/arm/mach-shmobile/include/mach/dma-register.h new file mode 100644 index 000000000000..97c40bd9b94f --- /dev/null +++ b/arch/arm/mach-shmobile/include/mach/dma-register.h @@ -0,0 +1,84 @@ +/* + * SH-ARM CPU-specific DMA definitions, used by both DMA drivers + * + * Copyright (C) 2012 Renesas Solutions Corp + * + * Kuninori Morimoto + * + * Based on arch/sh/include/cpu-sh4/cpu/dma-register.h + * Copyright (C) 2010 Guennadi Liakhovetski + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef DMA_REGISTER_H +#define DMA_REGISTER_H + +/* + * Direct Memory Access Controller + */ + +/* Transmit sizes and respective CHCR register values */ +enum { + XMIT_SZ_8BIT = 0, + XMIT_SZ_16BIT = 1, + XMIT_SZ_32BIT = 2, + XMIT_SZ_64BIT = 7, + XMIT_SZ_128BIT = 3, + XMIT_SZ_256BIT = 4, + XMIT_SZ_512BIT = 5, +}; + +/* log2(size / 8) - used to calculate number of transfers */ +static const unsigned int dma_ts_shift[] = { + [XMIT_SZ_8BIT] = 0, + [XMIT_SZ_16BIT] = 1, + [XMIT_SZ_32BIT] = 2, + [XMIT_SZ_64BIT] = 3, + [XMIT_SZ_128BIT] = 4, + [XMIT_SZ_256BIT] = 5, + [XMIT_SZ_512BIT] = 6, +}; + +#define TS_LOW_BIT 0x3 /* --xx */ +#define TS_HI_BIT 0xc /* xx-- */ + +#define TS_LOW_SHIFT (3) +#define TS_HI_SHIFT (20 - 2) /* 2 bits for shifted low TS */ + +#define TS_INDEX2VAL(i) \ + ((((i) & TS_LOW_BIT) << TS_LOW_SHIFT) |\ + (((i) & TS_HI_BIT) << TS_HI_SHIFT)) + +#define CHCR_TX(xmit_sz) (DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL((xmit_sz))) +#define CHCR_RX(xmit_sz) (DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL((xmit_sz))) + + +/* + * USB High-Speed DMAC + */ +/* Transmit sizes and respective CHCR register values */ +enum { + USBTS_XMIT_SZ_8BYTE = 0, + USBTS_XMIT_SZ_16BYTE = 1, + USBTS_XMIT_SZ_32BYTE = 2, +}; + +/* log2(size / 8) - used to calculate number of transfers */ +static const unsigned int dma_usbts_shift[] = { + [USBTS_XMIT_SZ_8BYTE] = 3, + [USBTS_XMIT_SZ_16BYTE] = 4, + [USBTS_XMIT_SZ_32BYTE] = 5, +}; + +#define USBTS_LOW_BIT 0x3 /* --xx */ +#define USBTS_HI_BIT 0x0 /* ---- */ + +#define USBTS_LOW_SHIFT 6 +#define USBTS_HI_SHIFT 0 + +#define USBTS_INDEX2VAL(i) (((i) & 3) << 6) + +#endif /* DMA_REGISTER_H */ From 12a7cfef5625ef03c6fdc9bf8a9857dd30d8a11d Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Mon, 25 Jun 2012 03:34:49 -0700 Subject: [PATCH 3/5] ARM: shmobile: sh73a0: add USB clock support It is required from renesas_usbhs driver. This patch is based on v2.0 manual. Signed-off-by: Kuninori Morimoto Acked-by: Magnus Damm Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-shmobile/clock-sh73a0.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-shmobile/clock-sh73a0.c b/arch/arm/mach-shmobile/clock-sh73a0.c index ad6f9ade7402..06ffa4a31c47 100644 --- a/arch/arm/mach-shmobile/clock-sh73a0.c +++ b/arch/arm/mach-shmobile/clock-sh73a0.c @@ -477,7 +477,7 @@ enum { MSTP001, MSTP129, MSTP128, MSTP127, MSTP126, MSTP125, MSTP118, MSTP116, MSTP100, MSTP219, MSTP218, MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200, - MSTP331, MSTP329, MSTP328, MSTP325, MSTP323, + MSTP331, MSTP329, MSTP328, MSTP325, MSTP323, MSTP322, MSTP314, MSTP313, MSTP312, MSTP311, MSTP303, MSTP302, MSTP301, MSTP300, MSTP411, MSTP410, MSTP403, @@ -510,6 +510,7 @@ static struct clk mstp_clks[MSTP_NR] = { [MSTP328] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 28, 0), /*FSI*/ [MSTP325] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 25, 0), /* IrDA */ [MSTP323] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 23, 0), /* IIC1 */ + [MSTP322] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 22, 0), /* USB */ [MSTP314] = MSTP(&div6_clks[DIV6_SDHI0], SMSTPCR3, 14, 0), /* SDHI0 */ [MSTP313] = MSTP(&div6_clks[DIV6_SDHI1], SMSTPCR3, 13, 0), /* SDHI1 */ [MSTP312] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 12, 0), /* MMCIF0 */ @@ -566,6 +567,7 @@ static struct clk_lookup lookups[] = { CLKDEV_DEV_ID("sh_fsi2", &mstp_clks[MSTP328]), /* FSI */ CLKDEV_DEV_ID("sh_irda.0", &mstp_clks[MSTP325]), /* IrDA */ CLKDEV_DEV_ID("i2c-sh_mobile.1", &mstp_clks[MSTP323]), /* I2C1 */ + CLKDEV_DEV_ID("renesas_usbhs", &mstp_clks[MSTP322]), /* USB */ CLKDEV_DEV_ID("sh_mobile_sdhi.0", &mstp_clks[MSTP314]), /* SDHI0 */ CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[MSTP313]), /* SDHI1 */ CLKDEV_DEV_ID("sh_mmcif.0", &mstp_clks[MSTP312]), /* MMCIF0 */ From 832290b25e20e0c3a6da056f7d0999de51311f2c Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Mon, 25 Jun 2012 03:39:20 -0700 Subject: [PATCH 4/5] ARM: shmobile: sh73a0: add DMAEngine support for MPDMAC Current shdmac can support MPDMAC (= sound DMA) on sh73a0. This support reduce CPU load when sound was playback. On v2.0 manual, MPDMAC MID/RID number were wrong. This patch is using the number which seems correct. Signed-off-by: Kuninori Morimoto Acked-by: Magnus Damm Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-shmobile/clock-sh73a0.c | 4 +- arch/arm/mach-shmobile/include/mach/sh73a0.h | 7 ++ arch/arm/mach-shmobile/setup-sh73a0.c | 111 +++++++++++++++++++ 3 files changed, 121 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-shmobile/clock-sh73a0.c b/arch/arm/mach-shmobile/clock-sh73a0.c index 06ffa4a31c47..37ba0140b427 100644 --- a/arch/arm/mach-shmobile/clock-sh73a0.c +++ b/arch/arm/mach-shmobile/clock-sh73a0.c @@ -475,7 +475,7 @@ static struct clk *late_main_clks[] = { enum { MSTP001, MSTP129, MSTP128, MSTP127, MSTP126, MSTP125, MSTP118, MSTP116, MSTP100, - MSTP219, MSTP218, + MSTP219, MSTP218, MSTP217, MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200, MSTP331, MSTP329, MSTP328, MSTP325, MSTP323, MSTP322, MSTP314, MSTP313, MSTP312, MSTP311, @@ -498,6 +498,7 @@ static struct clk mstp_clks[MSTP_NR] = { [MSTP100] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 0, 0), /* LCDC0 */ [MSTP219] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 19, 0), /* SCIFA7 */ [MSTP218] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 18, 0), /* SY-DMAC */ + [MSTP217] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 17, 0), /* MP-DMAC */ [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 */ @@ -555,6 +556,7 @@ static struct clk_lookup lookups[] = { CLKDEV_DEV_ID("sh_mobile_lcdc_fb.0", &mstp_clks[MSTP100]), /* LCDC0 */ CLKDEV_DEV_ID("sh-sci.7", &mstp_clks[MSTP219]), /* SCIFA7 */ CLKDEV_DEV_ID("sh-dma-engine.0", &mstp_clks[MSTP218]), /* SY-DMAC */ + CLKDEV_DEV_ID("sh-dma-engine.1", &mstp_clks[MSTP217]), /* MP-DMAC */ CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP207]), /* SCIFA5 */ CLKDEV_DEV_ID("sh-sci.8", &mstp_clks[MSTP206]), /* SCIFB */ CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]), /* SCIFA0 */ diff --git a/arch/arm/mach-shmobile/include/mach/sh73a0.h b/arch/arm/mach-shmobile/include/mach/sh73a0.h index 398e2c10913b..fe950f25d793 100644 --- a/arch/arm/mach-shmobile/include/mach/sh73a0.h +++ b/arch/arm/mach-shmobile/include/mach/sh73a0.h @@ -516,6 +516,13 @@ enum { SHDMA_SLAVE_SDHI2_RX, SHDMA_SLAVE_MMCIF_TX, SHDMA_SLAVE_MMCIF_RX, + SHDMA_SLAVE_FSI2A_TX, + SHDMA_SLAVE_FSI2A_RX, + SHDMA_SLAVE_FSI2B_TX, + SHDMA_SLAVE_FSI2B_RX, + SHDMA_SLAVE_FSI2C_TX, + SHDMA_SLAVE_FSI2C_RX, + SHDMA_SLAVE_FSI2D_RX, }; /* diff --git a/arch/arm/mach-shmobile/setup-sh73a0.c b/arch/arm/mach-shmobile/setup-sh73a0.c index 04a0dfe75493..2c7bb03a5699 100644 --- a/arch/arm/mach-shmobile/setup-sh73a0.c +++ b/arch/arm/mach-shmobile/setup-sh73a0.c @@ -651,6 +651,116 @@ static struct platform_device dma0_device = { }, }; +/* MPDMAC */ +static const struct sh_dmae_slave_config sh73a0_mpdma_slaves[] = { + { + .slave_id = SHDMA_SLAVE_FSI2A_RX, + .addr = 0xec230020, + .chcr = CHCR_RX(XMIT_SZ_32BIT), + .mid_rid = 0xd6, /* CHECK ME */ + }, { + .slave_id = SHDMA_SLAVE_FSI2A_TX, + .addr = 0xec230024, + .chcr = CHCR_TX(XMIT_SZ_32BIT), + .mid_rid = 0xd5, /* CHECK ME */ + }, { + .slave_id = SHDMA_SLAVE_FSI2C_RX, + .addr = 0xec230060, + .chcr = CHCR_RX(XMIT_SZ_32BIT), + .mid_rid = 0xda, /* CHECK ME */ + }, { + .slave_id = SHDMA_SLAVE_FSI2C_TX, + .addr = 0xec230064, + .chcr = CHCR_TX(XMIT_SZ_32BIT), + .mid_rid = 0xd9, /* CHECK ME */ + }, { + .slave_id = SHDMA_SLAVE_FSI2B_RX, + .addr = 0xec240020, + .chcr = CHCR_RX(XMIT_SZ_32BIT), + .mid_rid = 0x8e, /* CHECK ME */ + }, { + .slave_id = SHDMA_SLAVE_FSI2B_TX, + .addr = 0xec240024, + .chcr = CHCR_RX(XMIT_SZ_32BIT), + .mid_rid = 0x8d, /* CHECK ME */ + }, { + .slave_id = SHDMA_SLAVE_FSI2D_RX, + .addr = 0xec240060, + .chcr = CHCR_RX(XMIT_SZ_32BIT), + .mid_rid = 0x9a, /* CHECK ME */ + }, +}; + +#define MPDMA_CHANNEL(a, b, c) \ +{ \ + .offset = a, \ + .dmars = b, \ + .dmars_bit = c, \ + .chclr_offset = (0x220 - 0x20) + a \ +} + +static const struct sh_dmae_channel sh73a0_mpdma_channels[] = { + MPDMA_CHANNEL(0x00, 0, 0), + MPDMA_CHANNEL(0x10, 0, 8), + MPDMA_CHANNEL(0x20, 4, 0), + MPDMA_CHANNEL(0x30, 4, 8), + MPDMA_CHANNEL(0x50, 8, 0), + MPDMA_CHANNEL(0x70, 8, 8), +}; + +static struct sh_dmae_pdata sh73a0_mpdma_platform_data = { + .slave = sh73a0_mpdma_slaves, + .slave_num = ARRAY_SIZE(sh73a0_mpdma_slaves), + .channel = sh73a0_mpdma_channels, + .channel_num = ARRAY_SIZE(sh73a0_mpdma_channels), + .ts_low_shift = 3, + .ts_low_mask = 0x18, + .ts_high_shift = (20 - 2), /* 2 bits for shifted low TS */ + .ts_high_mask = 0x00300000, + .ts_shift = ts_shift, + .ts_shift_num = ARRAY_SIZE(ts_shift), + .dmaor_init = DMAOR_DME, + .chclr_present = 1, +}; + +/* Resource order important! */ +static struct resource sh73a0_mpdma_resources[] = { + { + /* Channel registers and DMAOR */ + .start = 0xec618020, + .end = 0xec61828f, + .flags = IORESOURCE_MEM, + }, + { + /* DMARSx */ + .start = 0xec619000, + .end = 0xec61900b, + .flags = IORESOURCE_MEM, + }, + { + .name = "error_irq", + .start = gic_spi(181), + .end = gic_spi(181), + .flags = IORESOURCE_IRQ, + }, + { + /* IRQ for channels 0-5 */ + .start = gic_spi(175), + .end = gic_spi(180), + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device mpdma0_device = { + .name = "sh-dma-engine", + .id = 1, + .resource = sh73a0_mpdma_resources, + .num_resources = ARRAY_SIZE(sh73a0_mpdma_resources), + .dev = { + .platform_data = &sh73a0_mpdma_platform_data, + }, +}; + static struct platform_device *sh73a0_early_devices[] __initdata = { &scif0_device, &scif1_device, @@ -673,6 +783,7 @@ static struct platform_device *sh73a0_late_devices[] __initdata = { &i2c3_device, &i2c4_device, &dma0_device, + &mpdma0_device, }; #define SRCR2 0xe61580b0 From 6088b422706af496d72065e8c539929f2d4a7e8b Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Mon, 25 Jun 2012 03:43:28 -0700 Subject: [PATCH 5/5] ARM: shmobile: use common DMAEngine definitions on sh73a0 This patch switch over to use common DMAEngine definitions, and reduced a waste of code. It is easy to understand if sh_dmae_pdata / sh_dmae_slave_config settings are used defined value instead of direct value. Signed-off-by: Kuninori Morimoto Acked-by: Magnus Damm Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-shmobile/setup-sh73a0.c | 53 +++++++-------------------- 1 file changed, 13 insertions(+), 40 deletions(-) diff --git a/arch/arm/mach-shmobile/setup-sh73a0.c b/arch/arm/mach-shmobile/setup-sh73a0.c index 2c7bb03a5699..d230af656fc9 100644 --- a/arch/arm/mach-shmobile/setup-sh73a0.c +++ b/arch/arm/mach-shmobile/setup-sh73a0.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include #include @@ -415,32 +416,6 @@ static struct platform_device i2c4_device = { .num_resources = ARRAY_SIZE(i2c4_resources), }; -/* Transmit sizes and respective CHCR register values */ -enum { - XMIT_SZ_8BIT = 0, - XMIT_SZ_16BIT = 1, - XMIT_SZ_32BIT = 2, - XMIT_SZ_64BIT = 7, - XMIT_SZ_128BIT = 3, - XMIT_SZ_256BIT = 4, - XMIT_SZ_512BIT = 5, -}; - -/* log2(size / 8) - used to calculate number of transfers */ -#define TS_SHIFT { \ - [XMIT_SZ_8BIT] = 0, \ - [XMIT_SZ_16BIT] = 1, \ - [XMIT_SZ_32BIT] = 2, \ - [XMIT_SZ_64BIT] = 3, \ - [XMIT_SZ_128BIT] = 4, \ - [XMIT_SZ_256BIT] = 5, \ - [XMIT_SZ_512BIT] = 6, \ -} - -#define TS_INDEX2VAL(i) ((((i) & 3) << 3) | (((i) & 0xc) << (20 - 2))) -#define CHCR_TX(xmit_sz) (DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL((xmit_sz))) -#define CHCR_RX(xmit_sz) (DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL((xmit_sz))) - static const struct sh_dmae_slave_config sh73a0_dmae_slaves[] = { { .slave_id = SHDMA_SLAVE_SCIF0_TX, @@ -604,19 +579,17 @@ static const struct sh_dmae_channel sh73a0_dmae_channels[] = { DMAE_CHANNEL(0x8980), }; -static const unsigned int ts_shift[] = TS_SHIFT; - static struct sh_dmae_pdata sh73a0_dmae_platform_data = { .slave = sh73a0_dmae_slaves, .slave_num = ARRAY_SIZE(sh73a0_dmae_slaves), .channel = sh73a0_dmae_channels, .channel_num = ARRAY_SIZE(sh73a0_dmae_channels), - .ts_low_shift = 3, - .ts_low_mask = 0x18, - .ts_high_shift = (20 - 2), /* 2 bits for shifted low TS */ - .ts_high_mask = 0x00300000, - .ts_shift = ts_shift, - .ts_shift_num = ARRAY_SIZE(ts_shift), + .ts_low_shift = TS_LOW_SHIFT, + .ts_low_mask = TS_LOW_BIT << TS_LOW_SHIFT, + .ts_high_shift = TS_HI_SHIFT, + .ts_high_mask = TS_HI_BIT << TS_HI_SHIFT, + .ts_shift = dma_ts_shift, + .ts_shift_num = ARRAY_SIZE(dma_ts_shift), .dmaor_init = DMAOR_DME, }; @@ -713,12 +686,12 @@ static struct sh_dmae_pdata sh73a0_mpdma_platform_data = { .slave_num = ARRAY_SIZE(sh73a0_mpdma_slaves), .channel = sh73a0_mpdma_channels, .channel_num = ARRAY_SIZE(sh73a0_mpdma_channels), - .ts_low_shift = 3, - .ts_low_mask = 0x18, - .ts_high_shift = (20 - 2), /* 2 bits for shifted low TS */ - .ts_high_mask = 0x00300000, - .ts_shift = ts_shift, - .ts_shift_num = ARRAY_SIZE(ts_shift), + .ts_low_shift = TS_LOW_SHIFT, + .ts_low_mask = TS_LOW_BIT << TS_LOW_SHIFT, + .ts_high_shift = TS_HI_SHIFT, + .ts_high_mask = TS_HI_BIT << TS_HI_SHIFT, + .ts_shift = dma_ts_shift, + .ts_shift_num = ARRAY_SIZE(dma_ts_shift), .dmaor_init = DMAOR_DME, .chclr_present = 1, };