From: Lokesh Vutla <lokeshvutla@ti.com>
Date: Fri, 23 Aug 2013 12:04:17 +0000 (+0530)
Subject: ARM: OMAP5: Avoid writing into LDO SRAM bits
X-Git-Tag: v2013.10-rc4~1^2~1^2~2
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=e22cc0cf137149bea3a06bb29ffe06e82d8edb84;p=u-boot

ARM: OMAP5: Avoid writing into LDO SRAM bits

Writing magic bits into LDO SRAM was suggested only for OMAP5432
ES1.0. Now these are no longer applicable. Moreover these bits should
not be overwritten as they are loaded from EFUSE. So avoid
writing into these registers.

Boot tested on OMAP5432 ES2.0

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
---

diff --git a/arch/arm/cpu/armv7/omap-common/clocks-common.c b/arch/arm/cpu/armv7/omap-common/clocks-common.c
index 7580594074..ab0c5680f5 100644
--- a/arch/arm/cpu/armv7/omap-common/clocks-common.c
+++ b/arch/arm/cpu/armv7/omap-common/clocks-common.c
@@ -589,13 +589,6 @@ void scale_vcores(struct vcores_data const *vcores)
 
 	val = optimize_vcore_voltage(&vcores->iva);
 	do_scale_vcore(vcores->iva.addr, val, vcores->iva.pmic);
-
-	 if (emif_sdram_type() == EMIF_SDRAM_TYPE_DDR3) {
-		/* Configure LDO SRAM "magic" bits */
-		writel(2, (*prcm)->prm_sldo_core_setup);
-		writel(2, (*prcm)->prm_sldo_mpu_setup);
-		writel(2, (*prcm)->prm_sldo_mm_setup);
-	}
 }
 
 static inline void enable_clock_domain(u32 const clkctrl_reg, u32 enable_mode)
diff --git a/arch/arm/cpu/armv7/omap5/prcm-regs.c b/arch/arm/cpu/armv7/omap5/prcm-regs.c
index 579818d559..5a3d52c11a 100644
--- a/arch/arm/cpu/armv7/omap5/prcm-regs.c
+++ b/arch/arm/cpu/armv7/omap5/prcm-regs.c
@@ -286,12 +286,6 @@ struct prcm_regs const omap5_es1_prcm = {
 	.prm_vc_val_bypass = 0x4ae07ba0,
 	.prm_vc_cfg_i2c_mode = 0x4ae07bb4,
 	.prm_vc_cfg_i2c_clk = 0x4ae07bb8,
-	.prm_sldo_core_setup = 0x4ae07bc4,
-	.prm_sldo_core_ctrl = 0x4ae07bc8,
-	.prm_sldo_mpu_setup = 0x4ae07bcc,
-	.prm_sldo_mpu_ctrl = 0x4ae07bd0,
-	.prm_sldo_mm_setup = 0x4ae07bd4,
-	.prm_sldo_mm_ctrl = 0x4ae07bd8,
 
 	/* SCRM stuff, used by some boards */
 	.scrm_auxclk0 = 0x4ae0a310,
@@ -735,12 +729,6 @@ struct prcm_regs const omap5_es2_prcm = {
 	.prm_vc_cfg_i2c_mode = 0x4ae07cb4,
 	.prm_vc_cfg_i2c_clk = 0x4ae07cb8,
 
-	.prm_sldo_core_setup = 0x4ae07cc4,
-	.prm_sldo_core_ctrl = 0x4ae07cc8,
-	.prm_sldo_mpu_setup = 0x4ae07ccc,
-	.prm_sldo_mpu_ctrl = 0x4ae07cd0,
-	.prm_sldo_mm_setup = 0x4ae07cd4,
-	.prm_sldo_mm_ctrl = 0x4ae07cd8,
 	.prm_abbldo_mpu_setup = 0x4ae07cdc,
 	.prm_abbldo_mpu_ctrl = 0x4ae07ce0,
 
diff --git a/arch/arm/include/asm/omap_common.h b/arch/arm/include/asm/omap_common.h
index 5e2f027ba4..61fee9f06d 100644
--- a/arch/arm/include/asm/omap_common.h
+++ b/arch/arm/include/asm/omap_common.h
@@ -310,12 +310,6 @@ struct prcm_regs {
 	u32 prm_vc_val_bypass;
 	u32 prm_vc_cfg_i2c_mode;
 	u32 prm_vc_cfg_i2c_clk;
-	u32 prm_sldo_core_setup;
-	u32 prm_sldo_core_ctrl;
-	u32 prm_sldo_mpu_setup;
-	u32 prm_sldo_mpu_ctrl;
-	u32 prm_sldo_mm_setup;
-	u32 prm_sldo_mm_ctrl;
 	u32 prm_abbldo_mpu_setup;
 	u32 prm_abbldo_mpu_ctrl;