diff options
| -rw-r--r-- | arch/arm/mach-at91/at91rm9200_devices.c | 173 | ||||
| -rw-r--r-- | arch/arm/mach-at91/at91sam9260_devices.c | 79 | ||||
| -rw-r--r-- | arch/arm/mach-at91/at91sam9261_devices.c | 173 | ||||
| -rw-r--r-- | arch/arm/mach-at91/at91sam9263_devices.c | 129 | ||||
| -rw-r--r-- | arch/arm/mach-at91/at91sam9rl_devices.c | 129 | ||||
| -rw-r--r-- | include/asm-arm/arch-at91/board.h | 17 |
6 files changed, 700 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c index a601c7c1670e..cebea4168778 100644 --- a/arch/arm/mach-at91/at91rm9200_devices.c +++ b/arch/arm/mach-at91/at91rm9200_devices.c @@ -636,6 +636,179 @@ void __init at91_init_leds(u8 cpu_led, u8 timer_led) {} /* -------------------------------------------------------------------- + * SSC -- Synchronous Serial Controller + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE) +static u64 ssc0_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc0_resources[] = { + [0] = { + .start = AT91RM9200_BASE_SSC0, + .end = AT91RM9200_BASE_SSC0 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91RM9200_ID_SSC0, + .end = AT91RM9200_ID_SSC0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91rm9200_ssc0_device = { + .name = "ssc", + .id = 0, + .dev = { + .dma_mask = &ssc0_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc0_resources, + .num_resources = ARRAY_SIZE(ssc0_resources), +}; + +static inline void configure_ssc0_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_A_periph(AT91_PIN_PB0, 1); + if (pins & ATMEL_SSC_TK) + at91_set_A_periph(AT91_PIN_PB1, 1); + if (pins & ATMEL_SSC_TD) + at91_set_A_periph(AT91_PIN_PB2, 1); + if (pins & ATMEL_SSC_RD) + at91_set_A_periph(AT91_PIN_PB3, 1); + if (pins & ATMEL_SSC_RK) + at91_set_A_periph(AT91_PIN_PB4, 1); + if (pins & ATMEL_SSC_RF) + at91_set_A_periph(AT91_PIN_PB5, 1); +} + +static u64 ssc1_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc1_resources[] = { + [0] = { + .start = AT91RM9200_BASE_SSC1, + .end = AT91RM9200_BASE_SSC1 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91RM9200_ID_SSC1, + .end = AT91RM9200_ID_SSC1, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91rm9200_ssc1_device = { + .name = "ssc", + .id = 1, + .dev = { + .dma_mask = &ssc1_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc1_resources, + .num_resources = ARRAY_SIZE(ssc1_resources), +}; + +static inline void configure_ssc1_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_A_periph(AT91_PIN_PB6, 1); + if (pins & ATMEL_SSC_TK) + at91_set_A_periph(AT91_PIN_PB7, 1); + if (pins & ATMEL_SSC_TD) + at91_set_A_periph(AT91_PIN_PB8, 1); + if (pins & ATMEL_SSC_RD) + at91_set_A_periph(AT91_PIN_PB9, 1); + if (pins & ATMEL_SSC_RK) + at91_set_A_periph(AT91_PIN_PB10, 1); + if (pins & ATMEL_SSC_RF) + at91_set_A_periph(AT91_PIN_PB11, 1); +} + +static u64 ssc2_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc2_resources[] = { + [0] = { + .start = AT91RM9200_BASE_SSC2, + .end = AT91RM9200_BASE_SSC2 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91RM9200_ID_SSC2, + .end = AT91RM9200_ID_SSC2, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91rm9200_ssc2_device = { + .name = "ssc", + .id = 2, + .dev = { + .dma_mask = &ssc2_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc2_resources, + .num_resources = ARRAY_SIZE(ssc2_resources), +}; + +static inline void configure_ssc2_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_A_periph(AT91_PIN_PB12, 1); + if (pins & ATMEL_SSC_TK) + at91_set_A_periph(AT91_PIN_PB13, 1); + if (pins & ATMEL_SSC_TD) + at91_set_A_periph(AT91_PIN_PB14, 1); + if (pins & ATMEL_SSC_RD) + at91_set_A_periph(AT91_PIN_PB15, 1); + if (pins & ATMEL_SSC_RK) + at91_set_A_periph(AT91_PIN_PB16, 1); + if (pins & ATMEL_SSC_RF) + at91_set_A_periph(AT91_PIN_PB17, 1); +} + +/* + * SSC controllers are accessed through library code, instead of any + * kind of all-singing/all-dancing driver. For example one could be + * used by a particular I2S audio codec's driver, while another one + * on the same system might be used by a custom data capture driver. + */ +void __init at91_add_device_ssc(unsigned id, unsigned pins) +{ + struct platform_device *pdev; + + /* + * NOTE: caller is responsible for passing information matching + * "pins" to whatever will be using each particular controller. + */ + switch (id) { + case AT91RM9200_ID_SSC0: + pdev = &at91rm9200_ssc0_device; + configure_ssc0_pins(pins); + at91_clock_associate("ssc0_clk", &pdev->dev, "ssc"); + break; + case AT91RM9200_ID_SSC1: + pdev = &at91rm9200_ssc1_device; + configure_ssc1_pins(pins); + at91_clock_associate("ssc1_clk", &pdev->dev, "ssc"); + break; + case AT91RM9200_ID_SSC2: + pdev = &at91rm9200_ssc2_device; + configure_ssc2_pins(pins); + at91_clock_associate("ssc2_clk", &pdev->dev, "ssc"); + break; + default: + return; + } + + platform_device_register(pdev); +} + +#else +void __init at91_add_device_ssc(unsigned id, unsigned pins) {} +#endif + + +/* -------------------------------------------------------------------- * UART * -------------------------------------------------------------------- */ diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c index c34fde362ad4..2e3db137bc49 100644 --- a/arch/arm/mach-at91/at91sam9260_devices.c +++ b/arch/arm/mach-at91/at91sam9260_devices.c @@ -607,6 +607,85 @@ void __init at91_init_leds(u8 cpu_led, u8 timer_led) {} /* -------------------------------------------------------------------- + * SSC -- Synchronous Serial Controller + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE) +static u64 ssc_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc_resources[] = { + [0] = { + .start = AT91SAM9260_BASE_SSC, + .end = AT91SAM9260_BASE_SSC + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9260_ID_SSC, + .end = AT91SAM9260_ID_SSC, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9260_ssc_device = { + .name = "ssc", + .id = 0, + .dev = { + .dma_mask = &ssc_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc_resources, + .num_resources = ARRAY_SIZE(ssc_resources), +}; + +static inline void configure_ssc_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_A_periph(AT91_PIN_PB17, 1); + if (pins & ATMEL_SSC_TK) + at91_set_A_periph(AT91_PIN_PB16, 1); + if (pins & ATMEL_SSC_TD) + at91_set_A_periph(AT91_PIN_PB18, 1); + if (pins & ATMEL_SSC_RD) + at91_set_A_periph(AT91_PIN_PB19, 1); + if (pins & ATMEL_SSC_RK) + at91_set_A_periph(AT91_PIN_PB20, 1); + if (pins & ATMEL_SSC_RF) + at91_set_A_periph(AT91_PIN_PB21, 1); +} + +/* + * SSC controllers are accessed through library code, instead of any + * kind of all-singing/all-dancing driver. For example one could be + * used by a particular I2S audio codec's driver, while another one + * on the same system might be used by a custom data capture driver. + */ +void __init at91_add_device_ssc(unsigned id, unsigned pins) +{ + struct platform_device *pdev; + + /* + * NOTE: caller is responsible for passing information matching + * "pins" to whatever will be using each particular controller. + */ + switch (id) { + case AT91SAM9260_ID_SSC: + pdev = &at91sam9260_ssc_device; + configure_ssc_pins(pins); + at91_clock_associate("ssc_clk", &pdev->dev, "pclk"); + break; + default: + return; + } + + platform_device_register(pdev); +} + +#else +void __init at91_add_device_ssc(unsigned id, unsigned pins) {} +#endif + + +/* -------------------------------------------------------------------- * UART * -------------------------------------------------------------------- */ #if defined(CONFIG_SERIAL_ATMEL) diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c index f7f02d15045d..266ccf01be53 100644 --- a/arch/arm/mach-at91/at91sam9261_devices.c +++ b/arch/arm/mach-at91/at91sam9261_devices.c @@ -619,6 +619,179 @@ void __init at91_init_leds(u8 cpu_led, u8 timer_led) {} /* -------------------------------------------------------------------- + * SSC -- Synchronous Serial Controller + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE) +static u64 ssc0_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc0_resources[] = { + [0] = { + .start = AT91SAM9261_BASE_SSC0, + .end = AT91SAM9261_BASE_SSC0 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9261_ID_SSC0, + .end = AT91SAM9261_ID_SSC0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9261_ssc0_device = { + .name = "ssc", + .id = 0, + .dev = { + .dma_mask = &ssc0_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc0_resources, + .num_resources = ARRAY_SIZE(ssc0_resources), +}; + +static inline void configure_ssc0_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_A_periph(AT91_PIN_PB21, 1); + if (pins & ATMEL_SSC_TK) + at91_set_A_periph(AT91_PIN_PB22, 1); + if (pins & ATMEL_SSC_TD) + at91_set_A_periph(AT91_PIN_PB23, 1); + if (pins & ATMEL_SSC_RD) + at91_set_A_periph(AT91_PIN_PB24, 1); + if (pins & ATMEL_SSC_RK) + at91_set_A_periph(AT91_PIN_PB25, 1); + if (pins & ATMEL_SSC_RF) + at91_set_A_periph(AT91_PIN_PB26, 1); +} + +static u64 ssc1_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc1_resources[] = { + [0] = { + .start = AT91SAM9261_BASE_SSC1, + .end = AT91SAM9261_BASE_SSC1 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9261_ID_SSC1, + .end = AT91SAM9261_ID_SSC1, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9261_ssc1_device = { + .name = "ssc", + .id = 1, + .dev = { + .dma_mask = &ssc1_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc1_resources, + .num_resources = ARRAY_SIZE(ssc1_resources), +}; + +static inline void configure_ssc1_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_B_periph(AT91_PIN_PA17, 1); + if (pins & ATMEL_SSC_TK) + at91_set_B_periph(AT91_PIN_PA18, 1); + if (pins & ATMEL_SSC_TD) + at91_set_B_periph(AT91_PIN_PA19, 1); + if (pins & ATMEL_SSC_RD) + at91_set_B_periph(AT91_PIN_PA20, 1); + if (pins & ATMEL_SSC_RK) + at91_set_B_periph(AT91_PIN_PA21, 1); + if (pins & ATMEL_SSC_RF) + at91_set_B_periph(AT91_PIN_PA22, 1); +} + +static u64 ssc2_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc2_resources[] = { + [0] = { + .start = AT91SAM9261_BASE_SSC2, + .end = AT91SAM9261_BASE_SSC2 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9261_ID_SSC2, + .end = AT91SAM9261_ID_SSC2, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9261_ssc2_device = { + .name = "ssc", + .id = 2, + .dev = { + .dma_mask = &ssc2_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc2_resources, + .num_resources = ARRAY_SIZE(ssc2_resources), +}; + +static inline void configure_ssc2_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_B_periph(AT91_PIN_PC25, 1); + if (pins & ATMEL_SSC_TK) + at91_set_B_periph(AT91_PIN_PC26, 1); + if (pins & ATMEL_SSC_TD) + at91_set_B_periph(AT91_PIN_PC27, 1); + if (pins & ATMEL_SSC_RD) + at91_set_B_periph(AT91_PIN_PC28, 1); + if (pins & ATMEL_SSC_RK) + at91_set_B_periph(AT91_PIN_PC29, 1); + if (pins & ATMEL_SSC_RF) + at91_set_B_periph(AT91_PIN_PC30, 1); +} + +/* + * SSC controllers are accessed through library code, instead of any + * kind of all-singing/all-dancing driver. For example one could be + * used by a particular I2S audio codec's driver, while another one + * on the same system might be used by a custom data capture driver. + */ +void __init at91_add_device_ssc(unsigned id, unsigned pins) +{ + struct platform_device *pdev; + + /* + * NOTE: caller is responsible for passing information matching + * "pins" to whatever will be using each particular controller. + */ + switch (id) { + case AT91SAM9261_ID_SSC0: + pdev = &at91sam9261_ssc0_device; + configure_ssc0_pins(pins); + at91_clock_associate("ssc0_clk", &pdev->dev, "pclk"); + break; + case AT91SAM9261_ID_SSC1: + pdev = &at91sam9261_ssc1_device; + configure_ssc1_pins(pins); + at91_clock_associate("ssc1_clk", &pdev->dev, "pclk"); + break; + case AT91SAM9261_ID_SSC2: + pdev = &at91sam9261_ssc2_device; + configure_ssc2_pins(pins); + at91_clock_associate("ssc2_clk", &pdev->dev, "pclk"); + break; + default: + return; + } + + platform_device_register(pdev); +} + +#else +void __init at91_add_device_ssc(unsigned id, unsigned pins) {} +#endif + + +/* -------------------------------------------------------------------- * UART * -------------------------------------------------------------------- */ diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c index 9bdcf45defcf..f83ef62f2385 100644 --- a/arch/arm/mach-at91/at91sam9263_devices.c +++ b/arch/arm/mach-at91/at91sam9263_devices.c @@ -866,6 +866,135 @@ void __init at91_init_leds(u8 cpu_led, u8 timer_led) {} /* -------------------------------------------------------------------- + * SSC -- Synchronous Serial Controller + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE) +static u64 ssc0_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc0_resources[] = { + [0] = { + .start = AT91SAM9263_BASE_SSC0, + .end = AT91SAM9263_BASE_SSC0 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9263_ID_SSC0, + .end = AT91SAM9263_ID_SSC0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9263_ssc0_device = { + .name = "ssc", + .id = 0, + .dev = { + .dma_mask = &ssc0_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc0_resources, + .num_resources = ARRAY_SIZE(ssc0_resources), +}; + +static inline void configure_ssc0_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_B_periph(AT91_PIN_PB0, 1); + if (pins & ATMEL_SSC_TK) + at91_set_B_periph(AT91_PIN_PB1, 1); + if (pins & ATMEL_SSC_TD) + at91_set_B_periph(AT91_PIN_PB2, 1); + if (pins & ATMEL_SSC_RD) + at91_set_B_periph(AT91_PIN_PB3, 1); + if (pins & ATMEL_SSC_RK) + at91_set_B_periph(AT91_PIN_PB4, 1); + if (pins & ATMEL_SSC_RF) + at91_set_B_periph(AT91_PIN_PB5, 1); +} + +static u64 ssc1_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc1_resources[] = { + [0] = { + .start = AT91SAM9263_BASE_SSC1, + .end = AT91SAM9263_BASE_SSC1 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9263_ID_SSC1, + .end = AT91SAM9263_ID_SSC1, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9263_ssc1_device = { + .name = "ssc", + .id = 1, + .dev = { + .dma_mask = &ssc1_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc1_resources, + .num_resources = ARRAY_SIZE(ssc1_resources), +}; + +static inline void configure_ssc1_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_A_periph(AT91_PIN_PB6, 1); + if (pins & ATMEL_SSC_TK) + at91_set_A_periph(AT91_PIN_PB7, 1); + if (pins & ATMEL_SSC_TD) + at91_set_A_periph(AT91_PIN_PB8, 1); + if (pins & ATMEL_SSC_RD) + at91_set_A_periph(AT91_PIN_PB9, 1); + if (pins & ATMEL_SSC_RK) + at91_set_A_periph(AT91_PIN_PB10, 1); + if (pins & ATMEL_SSC_RF) + at91_set_A_periph(AT91_PIN_PB11, 1); +} + +/* + * Return the device node so that board init code can use it as the + * parent for the device node reflecting how it's used on this board. + * + * SSC controllers are accessed through library code, instead of any + * kind of all-singing/all-dancing driver. For example one could be + * used by a particular I2S audio codec's driver, while another one + * on the same system might be used by a custom data capture driver. + */ +void __init at91_add_device_ssc(unsigned id, unsigned pins) +{ + struct platform_device *pdev; + + /* + * NOTE: caller is responsible for passing information matching + * "pins" to whatever will be using each particular controller. + */ + switch (id) { + case AT91SAM9263_ID_SSC0: + pdev = &at91sam9263_ssc0_device; + configure_ssc0_pins(pins); + at91_clock_associate("ssc0_clk", &pdev->dev, "pclk"); + break; + case AT91SAM9263_ID_SSC1: + pdev = &at91sam9263_ssc1_device; + configure_ssc1_pins(pins); + at91_clock_associate("ssc1_clk", &pdev->dev, "pclk"); + break; + default: + return; + } + + platform_device_register(pdev); +} + +#else +void __init at91_add_device_ssc(unsigned id, unsigned pins) {} +#endif + + +/* -------------------------------------------------------------------- * UART * -------------------------------------------------------------------- */ diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c index bec8066f9ba1..e886cdfe919d 100644 --- a/arch/arm/mach-at91/at91sam9rl_devices.c +++ b/arch/arm/mach-at91/at91sam9rl_devices.c @@ -472,6 +472,135 @@ void __init at91_init_leds(u8 cpu_led, u8 timer_led) {} /* -------------------------------------------------------------------- + * SSC -- Synchronous Serial Controller + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE) +static u64 ssc0_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc0_resources[] = { + [0] = { + .start = AT91SAM9RL_BASE_SSC0, + .end = AT91SAM9RL_BASE_SSC0 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9RL_ID_SSC0, + .end = AT91SAM9RL_ID_SSC0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9rl_ssc0_device = { + .name = "ssc", + .id = 0, + .dev = { + .dma_mask = &ssc0_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc0_resources, + .num_resources = ARRAY_SIZE(ssc0_resources), +}; + +static inline void configure_ssc0_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_A_periph(AT91_PIN_PC0, 1); + if (pins & ATMEL_SSC_TK) + at91_set_A_periph(AT91_PIN_PC1, 1); + if (pins & ATMEL_SSC_TD) + at91_set_A_periph(AT91_PIN_PA15, 1); + if (pins & ATMEL_SSC_RD) + at91_set_A_periph(AT91_PIN_PA16, 1); + if (pins & ATMEL_SSC_RK) + at91_set_B_periph(AT91_PIN_PA10, 1); + if (pins & ATMEL_SSC_RF) + at91_set_B_periph(AT91_PIN_PA22, 1); +} + +static u64 ssc1_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc1_resources[] = { + [0] = { + .start = AT91SAM9RL_BASE_SSC1, + .end = AT91SAM9RL_BASE_SSC1 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9RL_ID_SSC1, + .end = AT91SAM9RL_ID_SSC1, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9rl_ssc1_device = { + .name = "ssc", + .id = 1, + .dev = { + .dma_mask = &ssc1_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc1_resources, + .num_resources = ARRAY_SIZE(ssc1_resources), +}; + +static inline void configure_ssc1_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_B_periph(AT91_PIN_PA29, 1); + if (pins & ATMEL_SSC_TK) + at91_set_B_periph(AT91_PIN_PA30, 1); + if (pins & ATMEL_SSC_TD) + at91_set_B_periph(AT91_PIN_PA13, 1); + if (pins & ATMEL_SSC_RD) + at91_set_B_periph(AT91_PIN_PA14, 1); + if (pins & ATMEL_SSC_RK) + at91_set_B_periph(AT91_PIN_PA9, 1); + if (pins & ATMEL_SSC_RF) + at91_set_B_periph(AT91_PIN_PA8, 1); +} + +/* + * Return the device node so that board init code can use it as the + * parent for the device node reflecting how it's used on this board. + * + * SSC controllers are accessed through library code, instead of any + * kind of all-singing/all-dancing driver. For example one could be + * used by a particular I2S audio codec's driver, while another one + * on the same system might be used by a custom data capture driver. + */ +void __init at91_add_device_ssc(unsigned id, unsigned pins) +{ + struct platform_device *pdev; + + /* + * NOTE: caller is responsible for passing information matching + * "pins" to whatever will be using each particular controller. + */ + switch (id) { + case AT91SAM9RL_ID_SSC0: + pdev = &at91sam9rl_ssc0_device; + configure_ssc0_pins(pins); + at91_clock_associate("ssc0_clk", &pdev->dev, "pclk"); + break; + case AT91SAM9RL_ID_SSC1: + pdev = &at91sam9rl_ssc1_device; + configure_ssc1_pins(pins); + at91_clock_associate("ssc1_clk", &pdev->dev, "pclk"); + break; + default: + return; + } + + platform_device_register(pdev); +} + +#else +void __init at91_add_device_ssc(unsigned id, unsigned pins) {} +#endif + + +/* -------------------------------------------------------------------- * UART * -------------------------------------------------------------------- */ diff --git a/include/asm-arm/arch-at91/board.h b/include/asm-arm/arch-at91/board.h index 762148cc48c1..7fefe018833c 100644 --- a/include/asm-arm/arch-at91/board.h +++ b/include/asm-arm/arch-at91/board.h @@ -116,6 +116,23 @@ struct atmel_uart_data { }; extern void __init at91_add_device_serial(void); +/* + * SSC -- accessed through ssc_request(id). Drivers don't bind to SSC + * platform devices. Their SSC ID is part of their configuration data, + * along with information about which SSC signals they should use. + */ +#define ATMEL_SSC_TK 0x01 +#define ATMEL_SSC_TF 0x02 +#define ATMEL_SSC_TD 0x04 +#define ATMEL_SSC_TX (ATMEL_SSC_TK | ATMEL_SSC_TF | ATMEL_SSC_TD) + +#define ATMEL_SSC_RK 0x10 +#define ATMEL_SSC_RF 0x20 +#define ATMEL_SSC_RD 0x40 +#define ATMEL_SSC_RX (ATMEL_SSC_RK | ATMEL_SSC_RF | ATMEL_SSC_RD) + +extern void __init at91_add_device_ssc(unsigned id, unsigned pins); + /* LCD Controller */ struct atmel_lcdfb_info; extern void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data); |