diff options
Diffstat (limited to 'target/linux/ar71xx/patches-3.2/124-MIPS-ath79-add-clock-initialization-code-for-AR934X.patch')
| -rw-r--r-- | target/linux/ar71xx/patches-3.2/124-MIPS-ath79-add-clock-initialization-code-for-AR934X.patch | 194 |
1 files changed, 0 insertions, 194 deletions
diff --git a/target/linux/ar71xx/patches-3.2/124-MIPS-ath79-add-clock-initialization-code-for-AR934X.patch b/target/linux/ar71xx/patches-3.2/124-MIPS-ath79-add-clock-initialization-code-for-AR934X.patch deleted file mode 100644 index fd7976faf..000000000 --- a/target/linux/ar71xx/patches-3.2/124-MIPS-ath79-add-clock-initialization-code-for-AR934X.patch +++ /dev/null @@ -1,194 +0,0 @@ -From 783addfa256e79892f889e95ec5cda34f4e91eb7 Mon Sep 17 00:00:00 2001 -From: Gabor Juhos <juhosg@openwrt.org> -Date: Fri, 9 Dec 2011 20:36:32 +0100 -Subject: [PATCH 24/35] MIPS: ath79: add clock initialization code for AR934X - -Signed-off-by: Gabor Juhos <juhosg@openwrt.org> -Acked-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com> ---- - arch/mips/ath79/clock.c | 81 ++++++++++++++++++++++++ - arch/mips/include/asm/mach-ath79/ar71xx_regs.h | 53 +++++++++++++++ - 2 files changed, 134 insertions(+), 0 deletions(-) - ---- a/arch/mips/ath79/clock.c -+++ b/arch/mips/ath79/clock.c -@@ -1,8 +1,11 @@ - /* - * Atheros AR71XX/AR724X/AR913X common routines - * -+ * Copyright (C) 2010-2011 Jaiganesh Narayanan <jnarayanan@atheros.com> - * Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org> - * -+ * Parts of this file are based on Atheros' 2.6.15/2.6.31 BSP -+ * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. -@@ -163,6 +166,82 @@ static void __init ar933x_clocks_init(vo - ath79_uart_clk.rate = ath79_ref_clk.rate; - } - -+static void __init ar934x_clocks_init(void) -+{ -+ u32 pll, out_div, ref_div, nint, frac, clk_ctrl, postdiv; -+ u32 cpu_pll, ddr_pll; -+ u32 bootstrap; -+ -+ bootstrap = ath79_reset_rr(AR934X_RESET_REG_BOOTSTRAP); -+ if (bootstrap & AR934X_BOOTSTRAP_REF_CLK_40) -+ ath79_ref_clk.rate = 40 * 1000 * 1000; -+ else -+ ath79_ref_clk.rate = 25 * 1000 * 1000; -+ -+ pll = ath79_pll_rr(AR934X_PLL_CPU_CONFIG_REG); -+ out_div = (pll >> AR934X_PLL_CPU_CONFIG_OUTDIV_SHIFT) & -+ AR934X_PLL_CPU_CONFIG_OUTDIV_MASK; -+ ref_div = (pll >> AR934X_PLL_CPU_CONFIG_REFDIV_SHIFT) & -+ AR934X_PLL_CPU_CONFIG_REFDIV_MASK; -+ nint = (pll >> AR934X_PLL_CPU_CONFIG_NINT_SHIFT) & -+ AR934X_PLL_CPU_CONFIG_NINT_MASK; -+ frac = (pll >> AR934X_PLL_CPU_CONFIG_NFRAC_SHIFT) & -+ AR934X_PLL_CPU_CONFIG_NFRAC_MASK; -+ -+ cpu_pll = nint * ath79_ref_clk.rate / ref_div; -+ cpu_pll += frac * ath79_ref_clk.rate / (ref_div * (2 << 6)); -+ cpu_pll /= (1 << out_div); -+ -+ pll = ath79_pll_rr(AR934X_PLL_DDR_CONFIG_REG); -+ out_div = (pll >> AR934X_PLL_DDR_CONFIG_OUTDIV_SHIFT) & -+ AR934X_PLL_DDR_CONFIG_OUTDIV_MASK; -+ ref_div = (pll >> AR934X_PLL_DDR_CONFIG_REFDIV_SHIFT) & -+ AR934X_PLL_DDR_CONFIG_REFDIV_MASK; -+ nint = (pll >> AR934X_PLL_DDR_CONFIG_NINT_SHIFT) & -+ AR934X_PLL_DDR_CONFIG_NINT_MASK; -+ frac = (pll >> AR934X_PLL_DDR_CONFIG_NFRAC_SHIFT) & -+ AR934X_PLL_DDR_CONFIG_NFRAC_MASK; -+ -+ ddr_pll = nint * ath79_ref_clk.rate / ref_div; -+ ddr_pll += frac * ath79_ref_clk.rate / (ref_div * (2 << 10)); -+ ddr_pll /= (1 << out_div); -+ -+ clk_ctrl = ath79_pll_rr(AR934X_PLL_CPU_DDR_CLK_CTRL_REG); -+ -+ postdiv = (clk_ctrl >> AR934X_PLL_CPU_DDR_CLK_CTRL_CPU_POST_DIV_SHIFT) & -+ AR934X_PLL_CPU_DDR_CLK_CTRL_CPU_POST_DIV_MASK; -+ -+ if (clk_ctrl & AR934X_PLL_CPU_DDR_CLK_CTRL_CPU_PLL_BYPASS) -+ ath79_cpu_clk.rate = ath79_ref_clk.rate; -+ else if (clk_ctrl & AR934X_PLL_CPU_DDR_CLK_CTRL_CPUCLK_FROM_CPUPLL) -+ ath79_cpu_clk.rate = cpu_pll / (postdiv + 1); -+ else -+ ath79_cpu_clk.rate = ddr_pll / (postdiv + 1); -+ -+ postdiv = (clk_ctrl >> AR934X_PLL_CPU_DDR_CLK_CTRL_DDR_POST_DIV_SHIFT) & -+ AR934X_PLL_CPU_DDR_CLK_CTRL_DDR_POST_DIV_MASK; -+ -+ if (clk_ctrl & AR934X_PLL_CPU_DDR_CLK_CTRL_DDR_PLL_BYPASS) -+ ath79_ddr_clk.rate = ath79_ref_clk.rate; -+ else if (clk_ctrl & AR934X_PLL_CPU_DDR_CLK_CTRL_DDRCLK_FROM_DDRPLL) -+ ath79_ddr_clk.rate = ddr_pll / (postdiv + 1); -+ else -+ ath79_ddr_clk.rate = cpu_pll / (postdiv + 1); -+ -+ postdiv = (clk_ctrl >> AR934X_PLL_CPU_DDR_CLK_CTRL_AHB_POST_DIV_SHIFT) & -+ AR934X_PLL_CPU_DDR_CLK_CTRL_AHB_POST_DIV_MASK; -+ -+ if (clk_ctrl & AR934X_PLL_CPU_DDR_CLK_CTRL_AHB_PLL_BYPASS) -+ ath79_ahb_clk.rate = ath79_ref_clk.rate; -+ else if (clk_ctrl & AR934X_PLL_CPU_DDR_CLK_CTRL_AHBCLK_FROM_DDRPLL) -+ ath79_ahb_clk.rate = ddr_pll / (postdiv + 1); -+ else -+ ath79_ahb_clk.rate = cpu_pll / (postdiv + 1); -+ -+ 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()) -@@ -173,6 +252,8 @@ void __init ath79_clocks_init(void) - ar913x_clocks_init(); - else if (soc_is_ar933x()) - ar933x_clocks_init(); -+ else if (soc_is_ar934x()) -+ ar934x_clocks_init(); - else - BUG(); - ---- a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h -+++ b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h -@@ -151,6 +151,41 @@ - #define AR933X_PLL_CLOCK_CTRL_AHB_DIV_SHIFT 15 - #define AR933X_PLL_CLOCK_CTRL_AHB_DIV_MASK 0x7 - -+#define AR934X_PLL_CPU_CONFIG_REG 0x00 -+#define AR934X_PLL_DDR_CONFIG_REG 0x04 -+#define AR934X_PLL_CPU_DDR_CLK_CTRL_REG 0x08 -+ -+#define AR934X_PLL_CPU_CONFIG_NFRAC_SHIFT 0 -+#define AR934X_PLL_CPU_CONFIG_NFRAC_MASK 0x3f -+#define AR934X_PLL_CPU_CONFIG_NINT_SHIFT 6 -+#define AR934X_PLL_CPU_CONFIG_NINT_MASK 0x3f -+#define AR934X_PLL_CPU_CONFIG_REFDIV_SHIFT 12 -+#define AR934X_PLL_CPU_CONFIG_REFDIV_MASK 0x1f -+#define AR934X_PLL_CPU_CONFIG_OUTDIV_SHIFT 19 -+#define AR934X_PLL_CPU_CONFIG_OUTDIV_MASK 0x3 -+ -+#define AR934X_PLL_DDR_CONFIG_NFRAC_SHIFT 0 -+#define AR934X_PLL_DDR_CONFIG_NFRAC_MASK 0x3ff -+#define AR934X_PLL_DDR_CONFIG_NINT_SHIFT 10 -+#define AR934X_PLL_DDR_CONFIG_NINT_MASK 0x3f -+#define AR934X_PLL_DDR_CONFIG_REFDIV_SHIFT 16 -+#define AR934X_PLL_DDR_CONFIG_REFDIV_MASK 0x1f -+#define AR934X_PLL_DDR_CONFIG_OUTDIV_SHIFT 23 -+#define AR934X_PLL_DDR_CONFIG_OUTDIV_MASK 0x7 -+ -+#define AR934X_PLL_CPU_DDR_CLK_CTRL_CPU_PLL_BYPASS BIT(2) -+#define AR934X_PLL_CPU_DDR_CLK_CTRL_DDR_PLL_BYPASS BIT(3) -+#define AR934X_PLL_CPU_DDR_CLK_CTRL_AHB_PLL_BYPASS BIT(4) -+#define AR934X_PLL_CPU_DDR_CLK_CTRL_CPU_POST_DIV_SHIFT 5 -+#define AR934X_PLL_CPU_DDR_CLK_CTRL_CPU_POST_DIV_MASK 0x1f -+#define AR934X_PLL_CPU_DDR_CLK_CTRL_DDR_POST_DIV_SHIFT 10 -+#define AR934X_PLL_CPU_DDR_CLK_CTRL_DDR_POST_DIV_MASK 0x1f -+#define AR934X_PLL_CPU_DDR_CLK_CTRL_AHB_POST_DIV_SHIFT 15 -+#define AR934X_PLL_CPU_DDR_CLK_CTRL_AHB_POST_DIV_MASK 0x1f -+#define AR934X_PLL_CPU_DDR_CLK_CTRL_CPUCLK_FROM_CPUPLL BIT(20) -+#define AR934X_PLL_CPU_DDR_CLK_CTRL_DDRCLK_FROM_DDRPLL BIT(21) -+#define AR934X_PLL_CPU_DDR_CLK_CTRL_AHBCLK_FROM_DDRPLL BIT(24) -+ - /* - * USB_CONFIG block - */ -@@ -186,6 +221,8 @@ - #define AR933X_RESET_REG_RESET_MODULE 0x1c - #define AR933X_RESET_REG_BOOTSTRAP 0xac - -+#define AR934X_RESET_REG_BOOTSTRAP 0xb0 -+ - #define MISC_INT_ETHSW BIT(12) - #define MISC_INT_TIMER4 BIT(10) - #define MISC_INT_TIMER3 BIT(9) -@@ -242,6 +279,22 @@ - - #define AR933X_BOOTSTRAP_REF_CLK_40 BIT(0) - -+#define AR934X_BOOTSTRAP_SW_OPTION8 BIT(23) -+#define AR934X_BOOTSTRAP_SW_OPTION7 BIT(22) -+#define AR934X_BOOTSTRAP_SW_OPTION6 BIT(21) -+#define AR934X_BOOTSTRAP_SW_OPTION5 BIT(20) -+#define AR934X_BOOTSTRAP_SW_OPTION4 BIT(19) -+#define AR934X_BOOTSTRAP_SW_OPTION3 BIT(18) -+#define AR934X_BOOTSTRAP_SW_OPTION2 BIT(17) -+#define AR934X_BOOTSTRAP_SW_OPTION1 BIT(16) -+#define AR934X_BOOTSTRAP_USB_MODE_DEVICE BIT(7) -+#define AR934X_BOOTSTRAP_PCIE_RC BIT(6) -+#define AR934X_BOOTSTRAP_EJTAG_MODE BIT(5) -+#define AR934X_BOOTSTRAP_REF_CLK_40 BIT(4) -+#define AR934X_BOOTSTRAP_BOOT_FROM_SPI BIT(2) -+#define AR934X_BOOTSTRAP_SDRAM_DISABLED BIT(1) -+#define AR934X_BOOTSTRAP_DDR1 BIT(0) -+ - #define REV_ID_MAJOR_MASK 0xfff0 - #define REV_ID_MAJOR_AR71XX 0x00a0 - #define REV_ID_MAJOR_AR913X 0x00b0 |