diff options
Diffstat (limited to 'target/linux/ar71xx/files/arch/mips')
| -rw-r--r-- | target/linux/ar71xx/files/arch/mips/ar71xx/setup.c | 71 | ||||
| -rw-r--r-- | target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h | 181 |
2 files changed, 249 insertions, 3 deletions
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/setup.c b/target/linux/ar71xx/files/arch/mips/ar71xx/setup.c index 658fdd023..37ce27dec 100644 --- a/target/linux/ar71xx/files/arch/mips/ar71xx/setup.c +++ b/target/linux/ar71xx/files/arch/mips/ar71xx/setup.c @@ -1,10 +1,12 @@ /* * Atheros AR71xx SoC specific setup * + * Copyright (C) 2010-2011 Jaiganesh Narayanan <jnarayanan@atheros.com> * Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org> * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> * - * Parts of this file are based on Atheros' 2.6.15 BSP + * Parts of this file are based on Atheros 2.6.15 BSP + * Parts of this file are based on Atheros 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 @@ -39,6 +41,9 @@ EXPORT_SYMBOL_GPL(ar71xx_ahb_freq); u32 ar71xx_ddr_freq; EXPORT_SYMBOL_GPL(ar71xx_ddr_freq); +u32 ar934x_ref_freq; +EXPORT_SYMBOL_GPL(ar934x_ref_freq); + enum ar71xx_soc_type ar71xx_soc; EXPORT_SYMBOL_GPL(ar71xx_soc); @@ -141,6 +146,27 @@ static void __init ar71xx_detect_sys_type(void) } break; + case REV_ID_MAJOR_AR9341: + ar71xx_soc = AR71XX_SOC_AR9341; + chip = "9341"; + rev = ar71xx_reset_rr(AR71XX_RESET_REG_REV_ID) & + AR934X_REV_ID_REVISION_MASK; + break; + + case REV_ID_MAJOR_AR9342: + ar71xx_soc = AR71XX_SOC_AR9342; + chip = "9342"; + rev = ar71xx_reset_rr(AR71XX_RESET_REG_REV_ID) & + AR934X_REV_ID_REVISION_MASK; + break; + + case REV_ID_MAJOR_AR9344: + ar71xx_soc = AR71XX_SOC_AR9344; + chip = "9344"; + rev = ar71xx_reset_rr(AR71XX_RESET_REG_REV_ID) & + AR934X_REV_ID_REVISION_MASK; + break; + default: panic("ar71xx: unknown chip id:0x%08x\n", id); } @@ -148,6 +174,44 @@ static void __init ar71xx_detect_sys_type(void) sprintf(ar71xx_sys_type, "Atheros AR%s rev %u", chip, rev); } +static void __init ar934x_detect_sys_frequency(void) +{ + u32 pll, out_div, ref_div, nint, frac, clk_ctrl, ref, postdiv; + + if (ar71xx_reset_rr(AR934X_RESET_REG_BOOTSTRAP) & AR934X_REF_CLK_40) + ref = (40 * 1000000); + else + ref = (25 * 1000000); + + ar934x_ref_freq = ref; + + clk_ctrl = ar71xx_pll_rr(AR934X_PLL_REG_DDR_CTRL_CLOCK); + + pll = ar71xx_pll_rr(AR934X_PLL_REG_CPU_CONFIG); + out_div = AR934X_CPU_PLL_CFG_OUTDIV_GET(pll); + ref_div = AR934X_CPU_PLL_CFG_REFDIV_GET(pll); + nint = AR934X_CPU_PLL_CFG_NINT_GET(pll); + frac = AR934X_CPU_PLL_CFG_NFRAC_GET(pll); + postdiv = AR934X_CPU_DDR_CLK_CTRL_CPU_POST_DIV_GET(clk_ctrl); + ar71xx_cpu_freq = ((nint * ref / ref_div) >> out_div) / (postdiv + 1); + + out_div = AR934X_DDR_PLL_CFG_OUTDIV_GET(pll); + ref_div = AR934X_DDR_PLL_CFG_REFDIV_GET(pll); + nint = AR934X_DDR_PLL_CFG_NINT_GET(pll); + frac = AR934X_DDR_PLL_CFG_NFRAC_GET(pll); + postdiv = AR934X_CPU_DDR_CLK_CTRL_DDR_POST_DIV_GET(clk_ctrl); + ar71xx_ddr_freq = ((nint * ref / ref_div) >> out_div) / (postdiv + 1); + + postdiv = AR934X_CPU_DDR_CLK_CTRL_AHB_POST_DIV_GET(clk_ctrl); + + if (AR934X_CPU_DDR_CLK_CTRL_AHBCLK_FROM_DDRPLL_GET(clk_ctrl)) { + ar71xx_ahb_freq = ar71xx_ddr_freq / (postdiv + 1); + } else { + ar71xx_ahb_freq = ar71xx_cpu_freq / (postdiv + 1); + } + +} + static void __init ar91xx_detect_sys_frequency(void) { u32 pll; @@ -232,6 +296,11 @@ static void __init detect_sys_frequency(void) ar91xx_detect_sys_frequency(); break; + case AR71XX_SOC_AR9341: + case AR71XX_SOC_AR9342: + case AR71XX_SOC_AR9344: + ar934x_detect_sys_frequency(); + break; default: BUG(); } diff --git a/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h b/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h index ce9523d3f..0a3167862 100644 --- a/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h +++ b/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h @@ -1,10 +1,12 @@ /* * Atheros AR71xx SoC specific definitions * + * Copyright (C) 2010-2011 Jaiganesh Narayanan <jnarayanan@atheros.com> * Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org> * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> * - * Parts of this file are based on Atheros' 2.6.15 BSP + * Parts of this file are based on Atheros 2.6.15 BSP + * Parts of this file are based on Atheros 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 @@ -105,6 +107,7 @@ extern u32 ar71xx_ahb_freq; extern u32 ar71xx_cpu_freq; extern u32 ar71xx_ddr_freq; +extern u32 ar934x_ref_freq; enum ar71xx_soc_type { AR71XX_SOC_UNKNOWN, @@ -115,7 +118,10 @@ enum ar71xx_soc_type { AR71XX_SOC_AR7241, AR71XX_SOC_AR7242, AR71XX_SOC_AR9130, - AR71XX_SOC_AR9132 + AR71XX_SOC_AR9132, + AR71XX_SOC_AR9341, + AR71XX_SOC_AR9342, + AR71XX_SOC_AR9344, }; extern enum ar71xx_soc_type ar71xx_soc; @@ -167,6 +173,167 @@ extern enum ar71xx_soc_type ar71xx_soc; #define AR91XX_ETH0_PLL_SHIFT 20 #define AR91XX_ETH1_PLL_SHIFT 22 +#define AR934X_PLL_REG_CPU_CONFIG 0x00 +#define AR934X_PLL_REG_DDR_CTRL_CLOCK 0x8 + +#define AR934X_CPU_PLL_CFG_OUTDIV_MSB 21 +#define AR934X_CPU_PLL_CFG_OUTDIV_LSB 19 +#define AR934X_CPU_PLL_CFG_OUTDIV_MASK 0x00380000 + +#define AR934X_CPU_PLL_CFG_OUTDIV_GET(x) \ + (((x) & AR934X_CPU_PLL_CFG_OUTDIV_MASK) >> \ + AR934X_CPU_PLL_CFG_OUTDIV_LSB) + +#define AR934X_DDR_PLL_CFG_OUTDIV_MSB 25 +#define AR934X_DDR_PLL_CFG_OUTDIV_LSB 23 +#define AR934X_DDR_PLL_CFG_OUTDIV_MASK 0x03800000 + +#define AR934X_DDR_PLL_CFG_OUTDIV_GET(x) \ + (((x) & AR934X_DDR_PLL_CFG_OUTDIV_MASK) >> \ + AR934X_DDR_PLL_CFG_OUTDIV_LSB) + +#define AR934X_DDR_PLL_CFG_OUTDIV_SET(x) \ + (((x) << AR934X_DDR_PLL_CFG_OUTDIV_LSB) & \ + AR934X_DDR_PLL_CFG_OUTDIV_MASK) + +#define AR934X_CPU_PLL_CFG_REFDIV_MSB 16 +#define AR934X_CPU_PLL_CFG_REFDIV_LSB 12 +#define AR934X_CPU_PLL_CFG_REFDIV_MASK 0x0001f000 + +#define AR934X_CPU_PLL_CFG_REFDIV_GET(x) \ + (((x) & AR934X_CPU_PLL_CFG_REFDIV_MASK) >> \ + AR934X_CPU_PLL_CFG_REFDIV_LSB) + +#define AR934X_CPU_PLL_CFG_REFDIV_SET(x) \ + (((x) << AR934X_CPU_PLL_CFG_REFDIV_LSB) & \ + AR934X_CPU_PLL_CFG_REFDIV_MASK) + +#define AR934X_CPU_PLL_CFG_REFDIV_RESET 2 + +#define AR934X_CPU_PLL_CFG_NINT_MSB 11 +#define AR934X_CPU_PLL_CFG_NINT_LSB 6 +#define AR934X_CPU_PLL_CFG_NINT_MASK 0x00000fc0 + +#define AR934X_CPU_PLL_CFG_NINT_GET(x) \ + (((x) & AR934X_CPU_PLL_CFG_NINT_MASK) >> \ + AR934X_CPU_PLL_CFG_NINT_LSB) + +#define AR934X_CPU_PLL_CFG_NINT_SET(x) \ + (((x) << AR934X_CPU_PLL_CFG_NINT_LSB) & \ + AR934X_CPU_PLL_CFG_NINT_MASK) + +#define AR934X_CPU_PLL_CFG_NINT_RESET 20 + +#define AR934X_CPU_PLL_CFG_NFRAC_MSB 5 +#define AR934X_CPU_PLL_CFG_NFRAC_LSB 0 +#define AR934X_CPU_PLL_CFG_NFRAC_MASK 0x0000003f + +#define AR934X_CPU_PLL_CFG_NFRAC_GET(x) \ + (((x) & AR934X_CPU_PLL_CFG_NFRAC_MASK) >> \ + AR934X_CPU_PLL_CFG_NFRAC_LSB) + +#define AR934X_CPU_PLL_CFG_NFRAC_SET(x) \ + (((x) << AR934X_CPU_PLL_CFG_NFRAC_LSB) & \ + AR934X_CPU_PLL_CFG_NFRAC_MASK) + +#define AR934X_DDR_PLL_CFG_REFDIV_MSB 20 +#define AR934X_DDR_PLL_CFG_REFDIV_LSB 16 +#define AR934X_DDR_PLL_CFG_REFDIV_MASK 0x001f0000 + +#define AR934X_DDR_PLL_CFG_REFDIV_GET(x) \ + (((x) & AR934X_DDR_PLL_CFG_REFDIV_MASK) >> \ + AR934X_DDR_PLL_CFG_REFDIV_LSB) + +#define AR934X_DDR_PLL_CFG_REFDIV_SET(x) \ + (((x) << AR934X_DDR_PLL_CFG_REFDIV_LSB) & \ + AR934X_DDR_PLL_CFG_REFDIV_MASK) + +#define AR934X_DDR_PLL_CFG_REFDIV_RESET 2 + +#define AR934X_DDR_PLL_CFG_NINT_MSB 15 +#define AR934X_DDR_PLL_CFG_NINT_LSB 10 +#define AR934X_DDR_PLL_CFG_NINT_MASK 0x0000fc00 + +#define AR934X_DDR_PLL_CFG_NINT_GET(x) \ + (((x) & AR934X_DDR_PLL_CFG_NINT_MASK) >> \ + AR934X_DDR_PLL_CFG_NINT_LSB) + +#define AR934X_DDR_PLL_CFG_NINT_SET(x) \ + (((x) << AR934X_DDR_PLL_CFG_NINT_LSB) & \ + AR934X_DDR_PLL_CFG_NINT_MASK) + +#define AR934X_DDR_PLL_CFG_NINT_RESET 20 + +#define AR934X_DDR_PLL_CFG_NFRAC_MSB 9 +#define AR934X_DDR_PLL_CFG_NFRAC_LSB 0 +#define AR934X_DDR_PLL_CFG_NFRAC_MASK 0x000003ff + +#define AR934X_DDR_PLL_CFG_NFRAC_GET(x) \ + (((x) & AR934X_DDR_PLL_CFG_NFRAC_MASK) >> \ + AR934X_DDR_PLL_CFG_NFRAC_LSB) + +#define AR934X_DDR_PLL_CFG_NFRAC_SET(x) \ + (((x) << AR934X_DDR_PLL_CFG_NFRAC_LSB) & \ + AR934X_DDR_PLL_CFG_NFRAC_MASK) + +#define AR934X_DDR_PLL_CFG_NFRAC_RESET 512 + +#define AR934X_CPU_DDR_CLK_CTRL_AHB_POST_DIV_MSB 19 +#define AR934X_CPU_DDR_CLK_CTRL_AHB_POST_DIV_LSB 15 +#define AR934X_CPU_DDR_CLK_CTRL_AHB_POST_DIV_MASK 0x000f8000 + +#define AR934X_CPU_DDR_CLK_CTRL_AHB_POST_DIV_GET(x) \ + (((x) & AR934X_CPU_DDR_CLK_CTRL_AHB_POST_DIV_MASK) >> \ + AR934X_CPU_DDR_CLK_CTRL_AHB_POST_DIV_LSB) + +#define AR934X_CPU_DDR_CLK_CTRL_AHB_POST_DIV_SET(x) \ + (((x) << AR934X_CPU_DDR_CLK_CTRL_AHB_POST_DIV_LSB) & \ + AR934X_CPU_DDR_CLK_CTRL_AHB_POST_DIV_MASK) + +#define AR934X_CPU_DDR_CLK_CTRL_AHB_POST_DIV_RESET 0 + +#define AR934X_CPU_DDR_CLK_CTRL_DDR_POST_DIV_MSB 14 +#define AR934X_CPU_DDR_CLK_CTRL_DDR_POST_DIV_LSB 10 +#define AR934X_CPU_DDR_CLK_CTRL_DDR_POST_DIV_MASK 0x00007c00 + +#define AR934X_CPU_DDR_CLK_CTRL_DDR_POST_DIV_GET(x) \ + (((x) & AR934X_CPU_DDR_CLK_CTRL_DDR_POST_DIV_MASK) >> \ + AR934X_CPU_DDR_CLK_CTRL_DDR_POST_DIV_LSB) + +#define AR934X_CPU_DDR_CLK_CTRL_DDR_POST_DIV_SET(x) \ + (((x) << AR934X_CPU_DDR_CLK_CTRL_DDR_POST_DIV_LSB) & \ + AR934X_CPU_DDR_CLK_CTRL_DDR_POST_DIV_MASK) + +#define AR934X_CPU_DDR_CLK_CTRL_DDR_POST_DIV_RESET 0 + +#define AR934X_CPU_DDR_CLK_CTRL_CPU_POST_DIV_MSB 9 +#define AR934X_CPU_DDR_CLK_CTRL_CPU_POST_DIV_LSB 5 +#define AR934X_CPU_DDR_CLK_CTRL_CPU_POST_DIV_MASK 0x000003e0 + +#define AR934X_CPU_DDR_CLK_CTRL_CPU_POST_DIV_GET(x) \ + (((x) & AR934X_CPU_DDR_CLK_CTRL_CPU_POST_DIV_MASK) >> \ + AR934X_CPU_DDR_CLK_CTRL_CPU_POST_DIV_LSB) + +#define AR934X_CPU_DDR_CLK_CTRL_CPU_POST_DIV_SET(x) \ + (((x) << AR934X_CPU_DDR_CLK_CTRL_CPU_POST_DIV_LSB) & \ + AR934X_CPU_DDR_CLK_CTRL_CPU_POST_DIV_MASK) + +#define AR934X_CPU_DDR_CLK_CTRL_CPU_POST_DIV_RESET 0 + +#define AR934X_CPU_DDR_CLK_CTRL_AHBCLK_FROM_DDRPLL_MSB 24 +#define AR934X_CPU_DDR_CLK_CTRL_AHBCLK_FROM_DDRPLL_LSB 24 +#define AR934X_CPU_DDR_CLK_CTRL_AHBCLK_FROM_DDRPLL_MASK 0x01000000 + +#define AR934X_CPU_DDR_CLK_CTRL_AHBCLK_FROM_DDRPLL_GET(x) \ + (((x) & AR934X_CPU_DDR_CLK_CTRL_AHBCLK_FROM_DDRPLL_MASK) >> \ + AR934X_CPU_DDR_CLK_CTRL_AHBCLK_FROM_DDRPLL_LSB) + +#define AR934X_CPU_DDR_CLK_CTRL_AHBCLK_FROM_DDRPLL_SET(x) \ + (((x) << AR934X_CPU_DDR_CLK_CTRL_AHBCLK_FROM_DDRPLL_LSB) & \ + AR934X_CPU_DDR_CLK_CTRL_AHBCLK_FROM_DDRPLL_MASK) + +#define AR934X_CPU_DDR_CLK_CTRL_AHBCLK_FROM_DDRPLL_RESET 1 + extern void __iomem *ar71xx_pll_base; static inline void ar71xx_pll_wr(unsigned reg, u32 val) @@ -385,6 +552,11 @@ void ar71xx_ddr_flush(u32 reg); #define AR724X_RESET_REG_RESET_MODULE 0x1c +#define AR934X_RESET_REG_RESET_MODULE 0x1c +#define AR934X_RESET_REG_BOOTSTRAP 0xb0 +/* 0 - 25MHz 1 - 40 MHz */ +#define AR934X_REF_CLK_40 (1 << 4) + #define WDOG_CTRL_LAST_RESET BIT(31) #define WDOG_CTRL_ACTION_MASK 3 #define WDOG_CTRL_ACTION_NONE 0 /* no action */ @@ -442,6 +614,9 @@ void ar71xx_ddr_flush(u32 reg); #define REV_ID_MAJOR_AR7240 0x00c0 #define REV_ID_MAJOR_AR7241 0x0100 #define REV_ID_MAJOR_AR7242 0x1100 +#define REV_ID_MAJOR_AR9341 0x0120 +#define REV_ID_MAJOR_AR9342 0x1120 +#define REV_ID_MAJOR_AR9344 0x2120 #define AR71XX_REV_ID_MINOR_MASK 0x3 #define AR71XX_REV_ID_MINOR_AR7130 0x0 @@ -458,6 +633,8 @@ void ar71xx_ddr_flush(u32 reg); #define AR724X_REV_ID_REVISION_MASK 0x3 +#define AR934X_REV_ID_REVISION_MASK 0xf + extern void __iomem *ar71xx_reset_base; static inline void ar71xx_reset_wr(unsigned reg, u32 val) |