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authorFelix Fietkau <nbd@openwrt.org>2008-09-01 14:41:26 +0000
committerFelix Fietkau <nbd@openwrt.org>2008-09-01 14:41:26 +0000
commitd962e2ea4ad728c8377a4dc4d0ad4362d9bdd9be (patch)
tree374a7dd807df1a982453a8188e4cabad72a3e494 /target/linux/ar71xx
parent0fa02d0f80ba238d495205fbae1de81a6e568c4f (diff)
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make openwrt boot on ar9130 (currently no ethernet yet)
SVN-Revision: 12463
Diffstat (limited to 'target/linux/ar71xx')
-rw-r--r--target/linux/ar71xx/files/arch/mips/ar71xx/setup.c37
-rw-r--r--target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/ar71xx.h24
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