X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=arch%2Farm%2Fmach-stm32%2Fstm32f4%2Fclock.c;h=15fcadbbe6fa162b728c19e7e7ae32415ff9fdcf;hb=97c20932361124782cd28ec2028601d04b43ce1e;hp=3deb17aa833a6a3f18bab2e2cc2c53a12f91b558;hpb=0a61ee880ceecfa8e3ac12774c4424a73c0ba91d;p=u-boot

diff --git a/arch/arm/mach-stm32/stm32f4/clock.c b/arch/arm/mach-stm32/stm32f4/clock.c
index 3deb17aa83..15fcadbbe6 100644
--- a/arch/arm/mach-stm32/stm32f4/clock.c
+++ b/arch/arm/mach-stm32/stm32f4/clock.c
@@ -11,6 +11,7 @@
 #include <common.h>
 #include <asm/io.h>
 #include <asm/arch/stm32.h>
+#include <asm/arch/stm32_periph.h>
 
 #define RCC_CR_HSION		(1 << 0)
 #define RCC_CR_HSEON		(1 << 16)
@@ -50,6 +51,14 @@
 
 #define RCC_APB1ENR_PWREN	(1 << 28)
 
+/*
+ * RCC USART specific definitions
+ */
+#define RCC_ENR_USART1EN		(1 << 4)
+#define RCC_ENR_USART2EN		(1 << 17)
+#define RCC_ENR_USART3EN		(1 << 18)
+#define RCC_ENR_USART6EN		(1 <<  5)
+
 #define PWR_CR_VOS0		(1 << 14)
 #define PWR_CR_VOS1		(1 << 15)
 #define PWR_CR_VOS_MASK		0xC000
@@ -57,10 +66,20 @@
 #define PWR_CR_VOS_SCALE_MODE_2	(PWR_CR_VOS1)
 #define PWR_CR_VOS_SCALE_MODE_3	(PWR_CR_VOS0)
 
-#define FLASH_ACR_WS(n)		n
-#define FLASH_ACR_PRFTEN	(1 << 8)
-#define FLASH_ACR_ICEN		(1 << 9)
-#define FLASH_ACR_DCEN		(1 << 10)
+/*
+ * RCC GPIO specific definitions
+ */
+#define RCC_ENR_GPIO_A_EN	(1 << 0)
+#define RCC_ENR_GPIO_B_EN	(1 << 1)
+#define RCC_ENR_GPIO_C_EN	(1 << 2)
+#define RCC_ENR_GPIO_D_EN	(1 << 3)
+#define RCC_ENR_GPIO_E_EN	(1 << 4)
+#define RCC_ENR_GPIO_F_EN	(1 << 5)
+#define RCC_ENR_GPIO_G_EN	(1 << 6)
+#define RCC_ENR_GPIO_H_EN	(1 << 7)
+#define RCC_ENR_GPIO_I_EN	(1 << 8)
+#define RCC_ENR_GPIO_J_EN	(1 << 9)
+#define RCC_ENR_GPIO_K_EN	(1 << 10)
 
 struct pll_psc {
 	u8	pll_m;
@@ -157,10 +176,7 @@ int configure_clocks(void)
 	while (!(readl(&STM32_RCC->cr) & RCC_CR_PLLRDY))
 		;
 
-	/* 5 wait states, Prefetch enabled, D-Cache enabled, I-Cache enabled */
-	writel(FLASH_ACR_WS(5) | FLASH_ACR_PRFTEN | FLASH_ACR_ICEN
-		| FLASH_ACR_DCEN, &STM32_FLASH->acr);
-
+	stm32_flash_latency_cfg(5);
 	clrbits_le32(&STM32_RCC->cfgr, (RCC_CFGR_SW0 | RCC_CFGR_SW1));
 	setbits_le32(&STM32_RCC->cfgr, RCC_CFGR_SW_PLL);
 
@@ -221,3 +237,47 @@ unsigned long clock_get(enum clock clck)
 		break;
 	}
 }
+
+void clock_setup(int peripheral)
+{
+	switch (peripheral) {
+	case USART1_CLOCK_CFG:
+		setbits_le32(&STM32_RCC->apb2enr, RCC_ENR_USART1EN);
+		break;
+	case GPIO_A_CLOCK_CFG:
+		setbits_le32(&STM32_RCC->ahb1enr, RCC_ENR_GPIO_A_EN);
+		break;
+	case GPIO_B_CLOCK_CFG:
+		setbits_le32(&STM32_RCC->ahb1enr, RCC_ENR_GPIO_B_EN);
+		break;
+	case GPIO_C_CLOCK_CFG:
+		setbits_le32(&STM32_RCC->ahb1enr, RCC_ENR_GPIO_C_EN);
+		break;
+	case GPIO_D_CLOCK_CFG:
+		setbits_le32(&STM32_RCC->ahb1enr, RCC_ENR_GPIO_D_EN);
+		break;
+	case GPIO_E_CLOCK_CFG:
+		setbits_le32(&STM32_RCC->ahb1enr, RCC_ENR_GPIO_E_EN);
+		break;
+	case GPIO_F_CLOCK_CFG:
+		setbits_le32(&STM32_RCC->ahb1enr, RCC_ENR_GPIO_F_EN);
+		break;
+	case GPIO_G_CLOCK_CFG:
+		setbits_le32(&STM32_RCC->ahb1enr, RCC_ENR_GPIO_G_EN);
+		break;
+	case GPIO_H_CLOCK_CFG:
+		setbits_le32(&STM32_RCC->ahb1enr, RCC_ENR_GPIO_H_EN);
+		break;
+	case GPIO_I_CLOCK_CFG:
+		setbits_le32(&STM32_RCC->ahb1enr, RCC_ENR_GPIO_I_EN);
+		break;
+	case GPIO_J_CLOCK_CFG:
+		setbits_le32(&STM32_RCC->ahb1enr, RCC_ENR_GPIO_J_EN);
+		break;
+	case GPIO_K_CLOCK_CFG:
+		setbits_le32(&STM32_RCC->ahb1enr, RCC_ENR_GPIO_K_EN);
+		break;
+	default:
+		break;
+	}
+}