diff options
| author | John Crispin <blogic@openwrt.org> | 2014-07-27 12:16:50 +0400 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2014-11-24 09:45:19 +0300 |
| commit | 2adf550f2669645eaca7559c9ce7fc2e1dbfc636 (patch) | |
| tree | 137f4db5bc44be1d887b53417ee0c9a8a1002410 /arch/mips/ralink | |
| parent | 9bc7ebcbf1b963bd8bcbe5c1b8e34f0886656cea (diff) | |
| download | linux-2adf550f2669645eaca7559c9ce7fc2e1dbfc636.tar.xz | |
MIPS: ralink: add verbose pmu info
Print the PMU and LDO settings on boot.
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/7999/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/ralink')
| -rw-r--r-- | arch/mips/ralink/mt7620.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/mips/ralink/mt7620.c b/arch/mips/ralink/mt7620.c index a3ad56c2372d..584681709db2 100644 --- a/arch/mips/ralink/mt7620.c +++ b/arch/mips/ralink/mt7620.c @@ -20,6 +20,22 @@ #include "common.h" +/* analog */ +#define PMU0_CFG 0x88 +#define PMU_SW_SET BIT(28) +#define A_DCDC_EN BIT(24) +#define A_SSC_PERI BIT(19) +#define A_SSC_GEN BIT(18) +#define A_SSC_M 0x3 +#define A_SSC_S 16 +#define A_DLY_M 0x7 +#define A_DLY_S 8 +#define A_VTUNE_M 0xff + +/* digital */ +#define PMU1_CFG 0x8C +#define DIG_SW_SEL BIT(25) + /* does the board have sdram or ddram */ static int dram_type; @@ -339,6 +355,8 @@ void prom_soc_init(struct ralink_soc_info *soc_info) u32 n1; u32 rev; u32 cfg0; + u32 pmu0; + u32 pmu1; n0 = __raw_readl(sysc + SYSC_REG_CHIP_NAME0); n1 = __raw_readl(sysc + SYSC_REG_CHIP_NAME1); @@ -386,4 +404,12 @@ void prom_soc_init(struct ralink_soc_info *soc_info) BUG(); } soc_info->mem_base = MT7620_DRAM_BASE; + + pmu0 = __raw_readl(sysc + PMU0_CFG); + pmu1 = __raw_readl(sysc + PMU1_CFG); + + pr_info("Analog PMU set to %s control\n", + (pmu0 & PMU_SW_SET) ? ("sw") : ("hw")); + pr_info("Digital PMU set to %s control\n", + (pmu1 & DIG_SW_SEL) ? ("sw") : ("hw")); } |