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From 453850d315070678245f61202ae343153589e5a6 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Sun, 27 Jul 2014 09:16:50 +0100
Subject: [PATCH 01/57] MIPS: ralink: add verbose pmu info
Print the PMU and LDO settings on boot.
Signed-off-by: John Crispin <blogic@openwrt.org>
---
arch/mips/ralink/mt7620.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/arch/mips/ralink/mt7620.c b/arch/mips/ralink/mt7620.c
index a3ad56c..5846817 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"));
}
--
1.7.10.4
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