From bb1ad68b96a68e577a87ad62fe1aa26d052a52b5 Mon Sep 17 00:00:00 2001 From: Andrew Victor Date: Thu, 18 Sep 2008 19:42:37 +0100 Subject: [PATCH] [ARM] 5258/1: [AT91] PWM controller initialization Add platform_devices and configuration of the PWM controller found on Atmel AT91CAP9, SAM9263 and SAM9RL processors. SAM9263 support by Sedji Gaouaou. Signed-off-by: Andrew Victor Signed-off-by: Russell King --- arch/arm/mach-at91/at91cap9.c | 6 +-- arch/arm/mach-at91/at91cap9_devices.c | 54 ++++++++++++++++++++++++ arch/arm/mach-at91/at91sam9263.c | 6 +-- arch/arm/mach-at91/at91sam9263_devices.c | 53 +++++++++++++++++++++++ arch/arm/mach-at91/at91sam9rl.c | 6 +-- arch/arm/mach-at91/at91sam9rl_devices.c | 53 +++++++++++++++++++++++ arch/arm/mach-at91/include/mach/board.h | 10 +++++ 7 files changed, 179 insertions(+), 9 deletions(-) diff --git a/arch/arm/mach-at91/at91cap9.c b/arch/arm/mach-at91/at91cap9.c index 638948c1677..0fc0adaebd5 100644 --- a/arch/arm/mach-at91/at91cap9.c +++ b/arch/arm/mach-at91/at91cap9.c @@ -141,8 +141,8 @@ static struct clk tcb_clk = { .pmc_mask = 1 << AT91CAP9_ID_TCB, .type = CLK_TYPE_PERIPHERAL, }; -static struct clk pwmc_clk = { - .name = "pwmc_clk", +static struct clk pwm_clk = { + .name = "pwm_clk", .pmc_mask = 1 << AT91CAP9_ID_PWMC, .type = CLK_TYPE_PERIPHERAL, }; @@ -207,7 +207,7 @@ static struct clk *periph_clocks[] __initdata = { &ssc1_clk, &ac97_clk, &tcb_clk, - &pwmc_clk, + &pwm_clk, &macb_clk, &aestdes_clk, &adc_clk, diff --git a/arch/arm/mach-at91/at91cap9_devices.c b/arch/arm/mach-at91/at91cap9_devices.c index abb4aac8fa9..5ebd4273d35 100644 --- a/arch/arm/mach-at91/at91cap9_devices.c +++ b/arch/arm/mach-at91/at91cap9_devices.c @@ -718,6 +718,60 @@ static void __init at91_add_device_watchdog(void) {} #endif +/* -------------------------------------------------------------------- + * PWM + * --------------------------------------------------------------------*/ + +#if defined(CONFIG_ATMEL_PWM) +static u32 pwm_mask; + +static struct resource pwm_resources[] = { + [0] = { + .start = AT91CAP9_BASE_PWMC, + .end = AT91CAP9_BASE_PWMC + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91CAP9_ID_PWMC, + .end = AT91CAP9_ID_PWMC, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91cap9_pwm0_device = { + .name = "atmel_pwm", + .id = -1, + .dev = { + .platform_data = &pwm_mask, + }, + .resource = pwm_resources, + .num_resources = ARRAY_SIZE(pwm_resources), +}; + +void __init at91_add_device_pwm(u32 mask) +{ + if (mask & (1 << AT91_PWM0)) + at91_set_A_periph(AT91_PIN_PB19, 1); /* enable PWM0 */ + + if (mask & (1 << AT91_PWM1)) + at91_set_B_periph(AT91_PIN_PB8, 1); /* enable PWM1 */ + + if (mask & (1 << AT91_PWM2)) + at91_set_B_periph(AT91_PIN_PC29, 1); /* enable PWM2 */ + + if (mask & (1 << AT91_PWM3)) + at91_set_B_periph(AT91_PIN_PA11, 1); /* enable PWM3 */ + + pwm_mask = mask; + + platform_device_register(&at91cap9_pwm0_device); +} +#else +void __init at91_add_device_pwm(u32 mask) {} +#endif + + + /* -------------------------------------------------------------------- * AC97 * -------------------------------------------------------------------- */ diff --git a/arch/arm/mach-at91/at91sam9263.c b/arch/arm/mach-at91/at91sam9263.c index 80bfab5680e..ada4b676910 100644 --- a/arch/arm/mach-at91/at91sam9263.c +++ b/arch/arm/mach-at91/at91sam9263.c @@ -129,8 +129,8 @@ static struct clk tcb_clk = { .pmc_mask = 1 << AT91SAM9263_ID_TCB, .type = CLK_TYPE_PERIPHERAL, }; -static struct clk pwmc_clk = { - .name = "pwmc_clk", +static struct clk pwm_clk = { + .name = "pwm_clk", .pmc_mask = 1 << AT91SAM9263_ID_PWMC, .type = CLK_TYPE_PERIPHERAL, }; @@ -187,7 +187,7 @@ static struct clk *periph_clocks[] __initdata = { &ssc1_clk, &ac97_clk, &tcb_clk, - &pwmc_clk, + &pwm_clk, &macb_clk, &twodge_clk, &udc_clk, diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c index c93992f55dc..8b884083f76 100644 --- a/arch/arm/mach-at91/at91sam9263_devices.c +++ b/arch/arm/mach-at91/at91sam9263_devices.c @@ -885,6 +885,59 @@ static void __init at91_add_device_watchdog(void) {} #endif +/* -------------------------------------------------------------------- + * PWM + * --------------------------------------------------------------------*/ + +#if defined(CONFIG_ATMEL_PWM) +static u32 pwm_mask; + +static struct resource pwm_resources[] = { + [0] = { + .start = AT91SAM9263_BASE_PWMC, + .end = AT91SAM9263_BASE_PWMC + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9263_ID_PWMC, + .end = AT91SAM9263_ID_PWMC, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9263_pwm0_device = { + .name = "atmel_pwm", + .id = -1, + .dev = { + .platform_data = &pwm_mask, + }, + .resource = pwm_resources, + .num_resources = ARRAY_SIZE(pwm_resources), +}; + +void __init at91_add_device_pwm(u32 mask) +{ + if (mask & (1 << AT91_PWM0)) + at91_set_B_periph(AT91_PIN_PB7, 1); /* enable PWM0 */ + + if (mask & (1 << AT91_PWM1)) + at91_set_B_periph(AT91_PIN_PB8, 1); /* enable PWM1 */ + + if (mask & (1 << AT91_PWM2)) + at91_set_B_periph(AT91_PIN_PC29, 1); /* enable PWM2 */ + + if (mask & (1 << AT91_PWM3)) + at91_set_B_periph(AT91_PIN_PB29, 1); /* enable PWM3 */ + + pwm_mask = mask; + + platform_device_register(&at91sam9263_pwm0_device); +} +#else +void __init at91_add_device_pwm(u32 mask) {} +#endif + + /* -------------------------------------------------------------------- * SSC -- Synchronous Serial Controller * -------------------------------------------------------------------- */ diff --git a/arch/arm/mach-at91/at91sam9rl.c b/arch/arm/mach-at91/at91sam9rl.c index 556bddf35b4..252e954b49f 100644 --- a/arch/arm/mach-at91/at91sam9rl.c +++ b/arch/arm/mach-at91/at91sam9rl.c @@ -131,8 +131,8 @@ static struct clk tc2_clk = { .pmc_mask = 1 << AT91SAM9RL_ID_TC2, .type = CLK_TYPE_PERIPHERAL, }; -static struct clk pwmc_clk = { - .name = "pwmc_clk", +static struct clk pwm_clk = { + .name = "pwm_clk", .pmc_mask = 1 << AT91SAM9RL_ID_PWMC, .type = CLK_TYPE_PERIPHERAL, }; @@ -180,7 +180,7 @@ static struct clk *periph_clocks[] __initdata = { &tc0_clk, &tc1_clk, &tc2_clk, - &pwmc_clk, + &pwm_clk, &tsc_clk, &dma_clk, &udphs_clk, diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c index 620886341fb..3f9fed4902b 100644 --- a/arch/arm/mach-at91/at91sam9rl_devices.c +++ b/arch/arm/mach-at91/at91sam9rl_devices.c @@ -591,6 +591,59 @@ static void __init at91_add_device_watchdog(void) {} #endif +/* -------------------------------------------------------------------- + * PWM + * --------------------------------------------------------------------*/ + +#if defined(CONFIG_ATMEL_PWM) +static u32 pwm_mask; + +static struct resource pwm_resources[] = { + [0] = { + .start = AT91SAM9RL_BASE_PWMC, + .end = AT91SAM9RL_BASE_PWMC + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9RL_ID_PWMC, + .end = AT91SAM9RL_ID_PWMC, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9rl_pwm0_device = { + .name = "atmel_pwm", + .id = -1, + .dev = { + .platform_data = &pwm_mask, + }, + .resource = pwm_resources, + .num_resources = ARRAY_SIZE(pwm_resources), +}; + +void __init at91_add_device_pwm(u32 mask) +{ + if (mask & (1 << AT91_PWM0)) + at91_set_B_periph(AT91_PIN_PB8, 1); /* enable PWM0 */ + + if (mask & (1 << AT91_PWM1)) + at91_set_B_periph(AT91_PIN_PB9, 1); /* enable PWM1 */ + + if (mask & (1 << AT91_PWM2)) + at91_set_B_periph(AT91_PIN_PD5, 1); /* enable PWM2 */ + + if (mask & (1 << AT91_PWM3)) + at91_set_B_periph(AT91_PIN_PD8, 1); /* enable PWM3 */ + + pwm_mask = mask; + + platform_device_register(&at91sam9rl_pwm0_device); +} +#else +void __init at91_add_device_pwm(u32 mask) {} +#endif + + /* -------------------------------------------------------------------- * SSC -- Synchronous Serial Controller * -------------------------------------------------------------------- */ diff --git a/arch/arm/mach-at91/include/mach/board.h b/arch/arm/mach-at91/include/mach/board.h index acd60f2a072..9df4608b5f6 100644 --- a/arch/arm/mach-at91/include/mach/board.h +++ b/arch/arm/mach-at91/include/mach/board.h @@ -132,6 +132,16 @@ struct atmel_uart_data { }; extern void __init at91_add_device_serial(void); +/* + * PWM + */ +#define AT91_PWM0 0 +#define AT91_PWM1 1 +#define AT91_PWM2 2 +#define AT91_PWM3 3 + +extern void __init at91_add_device_pwm(u32 mask); + /* * SSC -- accessed through ssc_request(id). Drivers don't bind to SSC * platform devices. Their SSC ID is part of their configuration data, -- 2.41.0