diff options
Diffstat (limited to 'target/linux/ar71xx')
| -rw-r--r-- | target/linux/ar71xx/files/arch/mips/ar71xx/setup.c | 37 | ||||
| -rw-r--r-- | target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/ar71xx.h | 24 |
2 files changed, 49 insertions, 12 deletions
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/setup.c b/target/linux/ar71xx/files/arch/mips/ar71xx/setup.c index 3118552..00c5cf7 100644 --- a/target/linux/ar71xx/files/arch/mips/ar71xx/setup.c +++ b/target/linux/ar71xx/files/arch/mips/ar71xx/setup.c @@ -30,6 +30,7 @@ #define AR71XX_SYS_TYPE_LEN 64 #define AR71XX_BASE_FREQ 40000000 +#define AR91XX_BASE_FREQ 5000000 #define AR71XX_MEM_SIZE_MIN 0x0200000 #define AR71XX_MEM_SIZE_MAX 0x8000000 @@ -128,6 +129,9 @@ static void __init ar71xx_detect_sys_type(void) case REV_ID_CHIP_AR7161: chip = "7161"; break; + case REV_ID_CHIP_AR9130: + chip = "9130"; + break; default: chip = "71xx"; } @@ -136,24 +140,49 @@ static void __init ar71xx_detect_sys_type(void) chip, rev, id); } +static void __init ar91xx_detect_sys_frequency(void) +{ + u32 pll; + u32 freq; + u32 div; + + pll = ar71xx_pll_rr(PLL_REG_CPU_PLL_CFG); + + div = ((pll >> AR91XX_PLL_DIV_SHIFT) & AR91XX_PLL_DIV_MASK); + freq = div * AR91XX_BASE_FREQ; + + ar71xx_cpu_freq = freq; + + div = ((pll >> AR91XX_DDR_DIV_SHIFT) & AR91XX_DDR_DIV_MASK) + 1; + ar71xx_ddr_freq = freq / div; + + div = (((pll >> AR91XX_AHB_DIV_SHIFT) & AR91XX_AHB_DIV_MASK) + 1) * 2; + ar71xx_ahb_freq = ar71xx_cpu_freq / div; +} + static void __init ar71xx_detect_sys_frequency(void) { u32 pll; u32 freq; u32 div; + if ((ar71xx_reset_rr(RESET_REG_REV_ID) & REV_ID_MASK) >= + REV_ID_CHIP_AR9130) { + return ar91xx_detect_sys_frequency(); + } + pll = ar71xx_pll_rr(PLL_REG_CPU_PLL_CFG); - div = ((pll >> PLL_DIV_SHIFT) & PLL_DIV_MASK) + 1; + div = ((pll >> AR71XX_PLL_DIV_SHIFT) & AR71XX_PLL_DIV_MASK) + 1; freq = div * AR71XX_BASE_FREQ; - div = ((pll >> CPU_DIV_SHIFT) & CPU_DIV_MASK) + 1; + div = ((pll >> AR71XX_CPU_DIV_SHIFT) & AR71XX_CPU_DIV_MASK) + 1; ar71xx_cpu_freq = freq / div; - div = ((pll >> DDR_DIV_SHIFT) & DDR_DIV_MASK) + 1; + div = ((pll >> AR71XX_DDR_DIV_SHIFT) & AR71XX_DDR_DIV_MASK) + 1; ar71xx_ddr_freq = freq / div; - div = (((pll >> AHB_DIV_SHIFT) & AHB_DIV_MASK) + 1) * 2; + div = (((pll >> AR71XX_AHB_DIV_SHIFT) & AR71XX_AHB_DIV_MASK) + 1) * 2; ar71xx_ahb_freq = ar71xx_cpu_freq / div; } diff --git a/target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/ar71xx.h b/target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/ar71xx.h index 22fd2e6..af824d9 100644 --- a/target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/ar71xx.h +++ b/target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/ar71xx.h @@ -103,14 +103,21 @@ extern u32 ar71xx_ddr_freq; #define PLL_REG_ETH_EXT_CLK 0x18 #define PLL_REG_PCI_CLK 0x1c -#define PLL_DIV_SHIFT 3 -#define PLL_DIV_MASK 0x1f -#define CPU_DIV_SHIFT 16 -#define CPU_DIV_MASK 0x3 -#define DDR_DIV_SHIFT 18 -#define DDR_DIV_MASK 0x3 -#define AHB_DIV_SHIFT 20 -#define AHB_DIV_MASK 0x7 +#define AR71XX_PLL_DIV_SHIFT 3 +#define AR71XX_PLL_DIV_MASK 0x1f +#define AR71XX_CPU_DIV_SHIFT 16 +#define AR71XX_CPU_DIV_MASK 0x3 +#define AR71XX_DDR_DIV_SHIFT 18 +#define AR71XX_DDR_DIV_MASK 0x3 +#define AR71XX_AHB_DIV_SHIFT 20 +#define AR71XX_AHB_DIV_MASK 0x7 + +#define AR91XX_PLL_DIV_SHIFT 0 +#define AR91XX_PLL_DIV_MASK 0x3ff +#define AR91XX_DDR_DIV_SHIFT 22 +#define AR91XX_DDR_DIV_MASK 0x3 +#define AR91XX_AHB_DIV_SHIFT 19 +#define AR91XX_AHB_DIV_MASK 0x1 extern void __iomem *ar71xx_pll_base; @@ -306,6 +313,7 @@ extern void ar71xx_ddr_flush(u32 reg); #define REV_ID_CHIP_AR7130 0xa0 #define REV_ID_CHIP_AR7141 0xa1 #define REV_ID_CHIP_AR7161 0xa2 +#define REV_ID_CHIP_AR9130 0xb0 #define REV_ID_REVISION_MASK 0x3 #define REV_ID_REVISION_SHIFT 2 |