diff options
Diffstat (limited to 'target/linux/ar71xx/patches-3.2/007-MIPS-ath79-add-AR933X-specific-clock-init.patch')
| -rw-r--r-- | target/linux/ar71xx/patches-3.2/007-MIPS-ath79-add-AR933X-specific-clock-init.patch | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/target/linux/ar71xx/patches-3.2/007-MIPS-ath79-add-AR933X-specific-clock-init.patch b/target/linux/ar71xx/patches-3.2/007-MIPS-ath79-add-AR933X-specific-clock-init.patch deleted file mode 100644 index 0572fcd..0000000 --- a/target/linux/ar71xx/patches-3.2/007-MIPS-ath79-add-AR933X-specific-clock-init.patch +++ /dev/null @@ -1,148 +0,0 @@ -From 29c8b2eef2011bf9392479487a51f6927892bfd6 Mon Sep 17 00:00:00 2001 -From: Gabor Juhos <juhosg@openwrt.org> -Date: Mon, 20 Jun 2011 21:26:04 +0200 -Subject: [PATCH 07/27] MIPS: ath79: add AR933X specific clock init - -Signed-off-by: Gabor Juhos <juhosg@openwrt.org> -Cc: linux-mips@linux-mips.org -Cc: Kathy Giori <kgiori@qca.qualcomm.com> -Cc: "Luis R. Rodriguez" <rodrigue@qca.qualcomm.com> -Patchwork: https://patchwork.linux-mips.org/patch/2522/ -Signed-off-by: Ralf Baechle <ralf@linux-mips.org> ---- - arch/mips/ath79/clock.c | 55 ++++++++++++++++++++++++ - arch/mips/include/asm/mach-ath79/ar71xx_regs.h | 22 +++++++++ - arch/mips/include/asm/mach-ath79/ath79.h | 6 +++ - 3 files changed, 83 insertions(+), 0 deletions(-) - ---- a/arch/mips/ath79/clock.c -+++ b/arch/mips/ath79/clock.c -@@ -110,6 +110,59 @@ static void __init ar913x_clocks_init(vo - ath79_uart_clk.rate = ath79_ahb_clk.rate; - } - -+static void __init ar933x_clocks_init(void) -+{ -+ u32 clock_ctrl; -+ u32 cpu_config; -+ u32 freq; -+ u32 t; -+ -+ t = ath79_reset_rr(AR933X_RESET_REG_BOOTSTRAP); -+ if (t & AR933X_BOOTSTRAP_REF_CLK_40) -+ ath79_ref_clk.rate = (40 * 1000 * 1000); -+ else -+ ath79_ref_clk.rate = (25 * 1000 * 1000); -+ -+ clock_ctrl = ath79_pll_rr(AR933X_PLL_CLOCK_CTRL_REG); -+ if (clock_ctrl & AR933X_PLL_CLOCK_CTRL_BYPASS) { -+ ath79_cpu_clk.rate = ath79_ref_clk.rate; -+ ath79_ahb_clk.rate = ath79_ref_clk.rate; -+ ath79_ddr_clk.rate = ath79_ref_clk.rate; -+ } else { -+ cpu_config = ath79_pll_rr(AR933X_PLL_CPU_CONFIG_REG); -+ -+ t = (cpu_config >> AR933X_PLL_CPU_CONFIG_REFDIV_SHIFT) & -+ AR933X_PLL_CPU_CONFIG_REFDIV_MASK; -+ freq = ath79_ref_clk.rate / t; -+ -+ t = (cpu_config >> AR933X_PLL_CPU_CONFIG_NINT_SHIFT) & -+ AR933X_PLL_CPU_CONFIG_NINT_MASK; -+ freq *= t; -+ -+ t = (cpu_config >> AR933X_PLL_CPU_CONFIG_OUTDIV_SHIFT) & -+ AR933X_PLL_CPU_CONFIG_OUTDIV_MASK; -+ if (t == 0) -+ t = 1; -+ -+ freq >>= t; -+ -+ t = ((clock_ctrl >> AR933X_PLL_CLOCK_CTRL_CPU_DIV_SHIFT) & -+ AR933X_PLL_CLOCK_CTRL_CPU_DIV_MASK) + 1; -+ ath79_cpu_clk.rate = freq / t; -+ -+ t = ((clock_ctrl >> AR933X_PLL_CLOCK_CTRL_DDR_DIV_SHIFT) & -+ AR933X_PLL_CLOCK_CTRL_DDR_DIV_MASK) + 1; -+ ath79_ddr_clk.rate = freq / t; -+ -+ t = ((clock_ctrl >> AR933X_PLL_CLOCK_CTRL_AHB_DIV_SHIFT) & -+ AR933X_PLL_CLOCK_CTRL_AHB_DIV_MASK) + 1; -+ ath79_ahb_clk.rate = freq / t; -+ } -+ -+ ath79_wdt_clk.rate = ath79_ref_clk.rate; -+ ath79_uart_clk.rate = ath79_ref_clk.rate; -+} -+ - void __init ath79_clocks_init(void) - { - if (soc_is_ar71xx()) -@@ -118,6 +171,8 @@ void __init ath79_clocks_init(void) - ar724x_clocks_init(); - else if (soc_is_ar913x()) - ar913x_clocks_init(); -+ else if (soc_is_ar933x()) -+ ar933x_clocks_init(); - else - BUG(); - ---- a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h -+++ b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h -@@ -123,6 +123,24 @@ - #define AR913X_AHB_DIV_SHIFT 19 - #define AR913X_AHB_DIV_MASK 0x1 - -+#define AR933X_PLL_CPU_CONFIG_REG 0x00 -+#define AR933X_PLL_CLOCK_CTRL_REG 0x08 -+ -+#define AR933X_PLL_CPU_CONFIG_NINT_SHIFT 10 -+#define AR933X_PLL_CPU_CONFIG_NINT_MASK 0x3f -+#define AR933X_PLL_CPU_CONFIG_REFDIV_SHIFT 16 -+#define AR933X_PLL_CPU_CONFIG_REFDIV_MASK 0x1f -+#define AR933X_PLL_CPU_CONFIG_OUTDIV_SHIFT 23 -+#define AR933X_PLL_CPU_CONFIG_OUTDIV_MASK 0x7 -+ -+#define AR933X_PLL_CLOCK_CTRL_BYPASS BIT(2) -+#define AR933X_PLL_CLOCK_CTRL_CPU_DIV_SHIFT 5 -+#define AR933X_PLL_CLOCK_CTRL_CPU_DIV_MASK 0x3 -+#define AR933X_PLL_CLOCK_CTRL_DDR_DIV_SHIFT 10 -+#define AR933X_PLL_CLOCK_CTRL_DDR_DIV_MASK 0x3 -+#define AR933X_PLL_CLOCK_CTRL_AHB_DIV_SHIFT 15 -+#define AR933X_PLL_CLOCK_CTRL_AHB_DIV_MASK 0x7 -+ - /* - * USB_CONFIG block - */ -@@ -155,6 +173,8 @@ - - #define AR724X_RESET_REG_RESET_MODULE 0x1c - -+#define AR933X_RESET_REG_BOOTSTRAP 0xac -+ - #define MISC_INT_ETHSW BIT(12) - #define MISC_INT_TIMER4 BIT(10) - #define MISC_INT_TIMER3 BIT(9) -@@ -204,6 +224,8 @@ - #define AR913X_RESET_USB_HOST BIT(5) - #define AR913X_RESET_USB_PHY BIT(4) - -+#define AR933X_BOOTSTRAP_REF_CLK_40 BIT(0) -+ - #define REV_ID_MAJOR_MASK 0xfff0 - #define REV_ID_MAJOR_AR71XX 0x00a0 - #define REV_ID_MAJOR_AR913X 0x00b0 ---- a/arch/mips/include/asm/mach-ath79/ath79.h -+++ b/arch/mips/include/asm/mach-ath79/ath79.h -@@ -68,6 +68,12 @@ static inline int soc_is_ar913x(void) - ath79_soc == ATH79_SOC_AR9132); - } - -+static inline int soc_is_ar933x(void) -+{ -+ return (ath79_soc == ATH79_SOC_AR9330 || -+ ath79_soc == ATH79_SOC_AR9331); -+} -+ - extern void __iomem *ath79_ddr_base; - extern void __iomem *ath79_pll_base; - extern void __iomem *ath79_reset_base; |