[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>
diff --git a/arch/arm/mach-at91/at91cap9.c b/arch/arm/mach-at91/at91cap9.c
index 638948c..0fc0ada 100644
--- a/arch/arm/mach-at91/at91cap9.c
+++ b/arch/arm/mach-at91/at91cap9.c
@@ -141,8 +141,8 @@
.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 @@
&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 abb4aac..5ebd427 100644
--- a/arch/arm/mach-at91/at91cap9_devices.c
+++ b/arch/arm/mach-at91/at91cap9_devices.c
@@ -719,6 +719,60 @@
/* --------------------------------------------------------------------
+ * 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 80bfab5..ada4b67 100644
--- a/arch/arm/mach-at91/at91sam9263.c
+++ b/arch/arm/mach-at91/at91sam9263.c
@@ -129,8 +129,8 @@
.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 @@
&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 c93992f..8b88408 100644
--- a/arch/arm/mach-at91/at91sam9263_devices.c
+++ b/arch/arm/mach-at91/at91sam9263_devices.c
@@ -886,6 +886,59 @@
/* --------------------------------------------------------------------
+ * 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 556bddf..252e954 100644
--- a/arch/arm/mach-at91/at91sam9rl.c
+++ b/arch/arm/mach-at91/at91sam9rl.c
@@ -131,8 +131,8 @@
.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 @@
&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 6208863..3f9fed4 100644
--- a/arch/arm/mach-at91/at91sam9rl_devices.c
+++ b/arch/arm/mach-at91/at91sam9rl_devices.c
@@ -592,6 +592,59 @@
/* --------------------------------------------------------------------
+ * 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 acd60f2..9df4608 100644
--- a/arch/arm/mach-at91/include/mach/board.h
+++ b/arch/arm/mach-at91/include/mach/board.h
@@ -133,6 +133,16 @@
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.