ar7: clocks setup (prerequisite for dsl/usb) and misc cleanups.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@6693 3c298f89-4303-0410-b956-a3cf2f4a3e73

2 files changed, 56 insertions, 42 deletions

diff --git a/target/linux/ar7-2.6/files/include/asm-mips/ar7/ar7.h b/target/linux/ar7-2.6/files/include/asm-mips/ar7/ar7.h
index fe51a8d67..a5fa474af 100644
--- a/target/linux/ar7-2.6/files/include/asm-mips/ar7/ar7.h
+++ b/target/linux/ar7-2.6/files/include/asm-mips/ar7/ar7.h
@@ -31,12 +31,20 @@
 #define AR7_REGS_GPIO   (AR7_REGS_BASE + 0x0900)
 #define AR7_REGS_POWER  (AR7_REGS_BASE + 0x0a00)
 #define AR7_REGS_WDT    (AR7_REGS_BASE + 0x0b00)
+#define AR7_REGS_TIMER0 (AR7_REGS_BASE + 0x0c00)
+#define AR7_REGS_TIMER1 (AR7_REGS_BASE + 0x0d00)
 #define AR7_REGS_UART0  (AR7_REGS_BASE + 0x0e00)
 #define AR7_REGS_UART1  (AR7_REGS_BASE + 0x0f00)
+#define AR7_REGS_I2C    (AR7_REGS_BASE + 0x1000)
+#define AR7_REGS_USB    (AR7_REGS_BASE + 0x1200)
+#define AR7_REGS_DMA    (AR7_REGS_BASE + 0x1400)
 #define AR7_REGS_RESET  (AR7_REGS_BASE + 0x1600)
+#define AR7_REGS_BIST   (AR7_REGS_BASE + 0x1700)
 #define AR7_REGS_VLYNQ0 (AR7_REGS_BASE + 0x1800)
+#define AR7_REGS_DCL    (AR7_REGS_BASE + 0x1A00)
 #define AR7_REGS_VLYNQ1 (AR7_REGS_BASE + 0x1C00)
 #define AR7_REGS_MDIO   (AR7_REGS_BASE + 0x1E00)
+#define AR7_REGS_FSER   (AR7_REGS_BASE + 0x2000)
 #define AR7_REGS_IRQ    (AR7_REGS_BASE + 0x2400)
 #define AR7_REGS_MAC1   (AR7_REGS_BASE + 0x2800)
 
@@ -54,6 +62,9 @@
 
 #define AR7_GPIO_BIT_STATUS_LED   8
 
+#define AR7_CHIP_7100 0x18
+#define AR7_CHIP_7200 0x2b
+#define AR7_CHIP_7300 0x05
 
 /* Interrupts */
 #define AR7_IRQ_UART0  15
@@ -66,49 +77,52 @@ struct plat_cpmac_data {
 	char dev_addr[6];
 };
 
+struct plat_dsl_data {
+	int reset_bit_dsl;
+	int reset_bit_sar;
+};
+
 extern char *prom_getenv(char *envname);
 
-/* A bunch of small bit-toggling functions */
-static inline u32 get_chip_id(void)
+extern int ar7_cpu_clock, ar7_bus_clock, ar7_dsp_clock;
+
+static inline u16 ar7_chip_id(void)
 {
-	return *((u16 *)KSEG1ADDR(AR7_REGS_GPIO + 0x14));
+	return readl((void *)KSEG1ADDR(AR7_REGS_GPIO + 0x14)) & 0xffff;
+}
+
+static inline u8 ar7_chip_rev(void)
+{
+	return (readl((void *)KSEG1ADDR(AR7_REGS_GPIO + 0x14)) >> 16) & 0xff;
 }
 
 static inline int ar7_cpu_freq(void)
 {
-	u16 chip_id = get_chip_id();
-	switch (chip_id) {
-	case 0x5:
-		return 150000000;
-	case 0x18:
-	case 0x2b:
-		return 211968000;
-	default:
-		return 150000000;
-	}
+	return ar7_cpu_clock;
 }
 
 static inline int ar7_bus_freq(void)
 {
-	u16 chip_id = get_chip_id();
-	switch (chip_id) {
-	case 0x5:
-		return 125000000;
-	case 0x18:
-	case 0x2b:
-		return 105984000;
-	default:
-		return 125000000;
-	}
+	return ar7_bus_clock;
+}
+
+static inline int ar7_vbus_freq(void)
+{
+	return ar7_bus_clock / 2;
+}
+#define ar7_cpmac_freq ar7_vbus_freq
+
+static inline int ar7_dsp_freq(void)
+{
+	return ar7_dsp_clock;
 }
-#define ar7_cpmac_freq ar7_bus_freq
 
 static inline int ar7_has_high_cpmac(void)
 {
-	u16 chip_id = get_chip_id();
+	u16 chip_id = ar7_chip_id();
 	switch (chip_id) {
-	case 0x18:
-	case 0x2b:
+	case AR7_CHIP_7100:
+	case AR7_CHIP_7200:
 		return 0;
 	default:
 		return 1;
@@ -118,15 +132,15 @@ static inline int ar7_has_high_cpmac(void)
 
 static inline void ar7_device_enable(u32 bit)
 {
-	volatile u32 *reset_reg = (u32 *)KSEG1ADDR(AR7_REGS_RESET + AR7_RESET_PEREPHERIAL);
-	*reset_reg |= (1 << bit);	
+	void *reset_reg = (void *)KSEG1ADDR(AR7_REGS_RESET + AR7_RESET_PEREPHERIAL);
+	writel(readl(reset_reg) | (1 << bit), reset_reg);
 	mdelay(20);
 }
 
 static inline void ar7_device_disable(u32 bit)
 {
-	volatile u32 *reset_reg = (u32 *)KSEG1ADDR(AR7_REGS_RESET + AR7_RESET_PEREPHERIAL);
-	*reset_reg &= ~(1 << bit);
+	void *reset_reg = (void *)KSEG1ADDR(AR7_REGS_RESET + AR7_RESET_PEREPHERIAL);
+	writel(readl(reset_reg) & ~(1 << bit), reset_reg);
 	mdelay(20);
 }
 
@@ -138,15 +152,15 @@ static inline void ar7_device_reset(u32 bit)
 
 static inline void ar7_device_on(u32 bit)
 {
-	volatile u32 *power_reg = (u32 *)KSEG1ADDR(AR7_REGS_POWER);
-	*power_reg |= (1 << bit);
+	void *power_reg = (void *)KSEG1ADDR(AR7_REGS_POWER);
+	writel(readl(power_reg) | (1 << bit), power_reg);
 	mdelay(20);
 }
 
 static inline void ar7_device_off(u32 bit)
 {
-	volatile u32 *power_reg = (u32 *)KSEG1ADDR(AR7_REGS_POWER);
-	*power_reg &= ~(1 << bit);
+	void *power_reg = (void *)KSEG1ADDR(AR7_REGS_POWER);
+	writel(readl(power_reg) & ~(1 << bit), power_reg);
 	mdelay(20);
 }
 
diff --git a/target/linux/ar7-2.6/files/include/asm-mips/ar7/gpio.h b/target/linux/ar7-2.6/files/include/asm-mips/ar7/gpio.h
index 73673feff..97638077f 100644
--- a/target/linux/ar7-2.6/files/include/asm-mips/ar7/gpio.h
+++ b/target/linux/ar7-2.6/files/include/asm-mips/ar7/gpio.h
@@ -35,7 +35,7 @@ static inline int gpio_direction_input(unsigned gpio)
 	if (gpio >= AR7_GPIO_MAX)
 		return -EINVAL;
 
-	__raw_writel(__raw_readl(gpio_dir) | (1 << gpio), gpio_dir);
+	writel(readl(gpio_dir) | (1 << gpio), gpio_dir);
 
 	return 0;
 }
@@ -47,7 +47,7 @@ static inline int gpio_direction_output(unsigned gpio)
 	if (gpio >= AR7_GPIO_MAX)
 		return -EINVAL;
 
-	__raw_writel(__raw_readl(gpio_dir) & ~(1 << gpio), gpio_dir);
+	writel(readl(gpio_dir) & ~(1 << gpio), gpio_dir);
 
 	return 0;
 }
@@ -59,7 +59,7 @@ static inline int gpio_get_value(unsigned gpio)
 	if (gpio >= AR7_GPIO_MAX)
 		return -EINVAL;
 
-	return ((__raw_readl(gpio_in) & (1 << gpio)) != 0);
+	return ((readl(gpio_in) & (1 << gpio)) != 0);
 }
 
 static inline void gpio_set_value(unsigned gpio, int value)
@@ -70,10 +70,10 @@ static inline void gpio_set_value(unsigned gpio, int value)
 	if (gpio >= AR7_GPIO_MAX)
 		return;
 
-	tmp = __raw_readl(gpio_out) & ~(1 << gpio);
+	tmp = readl(gpio_out) & ~(1 << gpio);
 	if (value) 
 		tmp |= 1 << gpio;
-	__raw_writel(tmp, gpio_out);
+	writel(tmp, gpio_out);
 }
 
 static inline int gpio_to_irq(unsigned gpio)
@@ -94,7 +94,7 @@ static inline int ar7_gpio_enable(unsigned gpio)
 	if (gpio >= AR7_GPIO_MAX)
 		return -EINVAL;
 
-	__raw_writel(__raw_readl(gpio_en) | (1 << gpio), gpio_en);
+	writel(readl(gpio_en) | (1 << gpio), gpio_en);
 
 	return 0;
 }
@@ -106,7 +106,7 @@ static inline int ar7_gpio_disable(unsigned gpio)
 	if (gpio >= AR7_GPIO_MAX)
 		return -EINVAL;
 
-	__raw_writel(__raw_readl(gpio_en) & ~(1 << gpio), gpio_en);
+	writel(readl(gpio_en) & ~(1 << gpio), gpio_en);
 
 	return 0;
 }