diff options
author | Andrew Victor <linux@maxim.org.za> | 2008-09-18 19:42:37 +0100 |
---|---|---|
committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-09-21 22:58:37 +0100 |
commit | bb1ad68b96a68e577a87ad62fe1aa26d052a52b5 (patch) | |
tree | a98d65d54a4f441329f83988ffb9bea16e7d396e /arch | |
parent | e505240b6a6fd47b84cfeb1272ffeacd3e0874b3 (diff) | |
download | linux-bb1ad68b96a68e577a87ad62fe1aa26d052a52b5.tar.gz linux-bb1ad68b96a68e577a87ad62fe1aa26d052a52b5.tar.bz2 linux-bb1ad68b96a68e577a87ad62fe1aa26d052a52b5.zip |
[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 <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/arm/mach-at91/at91cap9.c | 6 | ||||
-rw-r--r-- | arch/arm/mach-at91/at91cap9_devices.c | 54 | ||||
-rw-r--r-- | arch/arm/mach-at91/at91sam9263.c | 6 | ||||
-rw-r--r-- | arch/arm/mach-at91/at91sam9263_devices.c | 53 | ||||
-rw-r--r-- | arch/arm/mach-at91/at91sam9rl.c | 6 | ||||
-rw-r--r-- | arch/arm/mach-at91/at91sam9rl_devices.c | 53 | ||||
-rw-r--r-- | 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 638948c16770..0fc0adaebd58 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 abb4aac8fa98..5ebd4273d353 100644 --- a/arch/arm/mach-at91/at91cap9_devices.c +++ b/arch/arm/mach-at91/at91cap9_devices.c @@ -719,6 +719,60 @@ static void __init at91_add_device_watchdog(void) {} /* -------------------------------------------------------------------- + * 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 80bfab5680e2..ada4b6769107 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 c93992f55dc9..8b884083f76d 100644 --- a/arch/arm/mach-at91/at91sam9263_devices.c +++ b/arch/arm/mach-at91/at91sam9263_devices.c @@ -886,6 +886,59 @@ static void __init at91_add_device_watchdog(void) {} /* -------------------------------------------------------------------- + * 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 556bddf35b45..252e954b49fd 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 620886341fb5..3f9fed4902b8 100644 --- a/arch/arm/mach-at91/at91sam9rl_devices.c +++ b/arch/arm/mach-at91/at91sam9rl_devices.c @@ -592,6 +592,59 @@ static void __init at91_add_device_watchdog(void) {} /* -------------------------------------------------------------------- + * 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 acd60f2a0724..9df4608b5f6a 100644 --- a/arch/arm/mach-at91/include/mach/board.h +++ b/arch/arm/mach-at91/include/mach/board.h @@ -133,6 +133,16 @@ 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, * along with information about which SSC signals they should use. |