Merge branch 'master' into for-next

Pull linus#master to merge PER_CPU_DEF_ATTRIBUTES and alpha build fix
changes.  As alpha in percpu tree uses 'weak' attribute instead of
inline assembly, there's no need for __used attribute.

Conflicts:
	arch/alpha/include/asm/percpu.h
	arch/mn10300/kernel/vmlinux.lds.S
	include/linux/percpu-defs.h

10 files changed, 211 insertions, 63 deletions

diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c
index da93b86234ed..9a0bf6744a05 100644
--- a/arch/arm/mach-omap2/board-rx51-peripherals.c
+++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
@@ -362,6 +362,7 @@ static struct omap_onenand_platform_data board_onenand_data = {
 	.gpio_irq	= 65,
 	.parts		= onenand_partitions,
 	.nr_parts	= ARRAY_SIZE(onenand_partitions),
+	.flags		= ONENAND_SYNC_READWRITE,
 };
 
 static void __init board_onenand_init(void)
diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index ba528f85749c..b0665f161c03 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -302,7 +302,7 @@ int omap2_wait_clock_ready(void __iomem *reg, u32 mask, const char *name)
 		udelay(1);
 	}
 
-	if (i < MAX_CLOCK_ENABLE_WAIT)
+	if (i <= MAX_CLOCK_ENABLE_WAIT)
 		pr_debug("Clock %s stable after %d loops\n", name, i);
 	else
 		printk(KERN_ERR "Clock %s didn't enable in %d tries\n",
diff --git a/arch/arm/mach-omap2/clock34xx.c b/arch/arm/mach-omap2/clock34xx.c
index 9e43fe5209d3..045da923e75b 100644
--- a/arch/arm/mach-omap2/clock34xx.c
+++ b/arch/arm/mach-omap2/clock34xx.c
@@ -286,6 +286,20 @@ static struct omap_clk omap34xx_clks[] = {
 
 #define MIN_SDRC_DLL_LOCK_FREQ		83000000
 
+#define CYCLES_PER_MHZ			1000000
+
+/* Scale factor for fixed-point arith in omap3_core_dpll_m2_set_rate() */
+#define SDRC_MPURATE_SCALE		8
+
+/* 2^SDRC_MPURATE_BASE_SHIFT: MPU MHz that SDRC_MPURATE_LOOPS is defined for */
+#define SDRC_MPURATE_BASE_SHIFT		9
+
+/*
+ * SDRC_MPURATE_LOOPS: Number of MPU loops to execute at
+ * 2^MPURATE_BASE_SHIFT MHz for SDRC to stabilize
+ */
+#define SDRC_MPURATE_LOOPS		96
+
 /**
  * omap3_dpll_recalc - recalculate DPLL rate
  * @clk: DPLL struct clk
@@ -709,7 +723,8 @@ static int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate)
 {
 	u32 new_div = 0;
 	u32 unlock_dll = 0;
-	unsigned long validrate, sdrcrate;
+	u32 c;
+	unsigned long validrate, sdrcrate, mpurate;
 	struct omap_sdrc_params *sp;
 
 	if (!clk || !rate)
@@ -718,18 +733,15 @@ static int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate)
 	if (clk != &dpll3_m2_ck)
 		return -EINVAL;
 
-	if (rate == clk->rate)
-		return 0;
-
 	validrate = omap2_clksel_round_rate_div(clk, rate, &new_div);
 	if (validrate != rate)
 		return -EINVAL;
 
 	sdrcrate = sdrc_ick.rate;
 	if (rate > clk->rate)
-		sdrcrate <<= ((rate / clk->rate) - 1);
+		sdrcrate <<= ((rate / clk->rate) >> 1);
 	else
-		sdrcrate >>= ((clk->rate / rate) - 1);
+		sdrcrate >>= ((clk->rate / rate) >> 1);
 
 	sp = omap2_sdrc_get_params(sdrcrate);
 	if (!sp)
@@ -740,17 +752,25 @@ static int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate)
 		unlock_dll = 1;
 	}
 
+	/*
+	 * XXX This only needs to be done when the CPU frequency changes
+	 */
+	mpurate = arm_fck.rate / CYCLES_PER_MHZ;
+	c = (mpurate << SDRC_MPURATE_SCALE) >> SDRC_MPURATE_BASE_SHIFT;
+	c += 1;  /* for safety */
+	c *= SDRC_MPURATE_LOOPS;
+	c >>= SDRC_MPURATE_SCALE;
+	if (c == 0)
+		c = 1;
+
 	pr_debug("clock: changing CORE DPLL rate from %lu to %lu\n", clk->rate,
 		 validrate);
 	pr_debug("clock: SDRC timing params used: %08x %08x %08x\n",
 		 sp->rfr_ctrl, sp->actim_ctrla, sp->actim_ctrlb);
 
-	/* REVISIT: SRAM code doesn't support other M2 divisors yet */
-	WARN_ON(new_div != 1 && new_div != 2);
-
-	/* REVISIT: Add SDRC_MR changing to this code also */
 	omap3_configure_core_dpll(sp->rfr_ctrl, sp->actim_ctrla,
-				  sp->actim_ctrlb, new_div, unlock_dll);
+				  sp->actim_ctrlb, new_div, unlock_dll, c,
+				  sp->mr, rate > clk->rate);
 
 	return 0;
 }
diff --git a/arch/arm/mach-omap2/gpmc-onenand.c b/arch/arm/mach-omap2/gpmc-onenand.c
index 2fd22f9c5f0e..54fec53a48e7 100644
--- a/arch/arm/mach-omap2/gpmc-onenand.c
+++ b/arch/arm/mach-omap2/gpmc-onenand.c
@@ -31,6 +31,8 @@ static struct platform_device gpmc_onenand_device = {
 static int omap2_onenand_set_async_mode(int cs, void __iomem *onenand_base)
 {
 	struct gpmc_timings t;
+	u32 reg;
+	int err;
 
 	const int t_cer = 15;
 	const int t_avdp = 12;
@@ -43,6 +45,11 @@ static int omap2_onenand_set_async_mode(int cs, void __iomem *onenand_base)
 	const int t_wpl = 40;
 	const int t_wph = 30;
 
+	/* Ensure sync read and sync write are disabled */
+	reg = readw(onenand_base + ONENAND_REG_SYS_CFG1);
+	reg &= ~ONENAND_SYS_CFG1_SYNC_READ & ~ONENAND_SYS_CFG1_SYNC_WRITE;
+	writew(reg, onenand_base + ONENAND_REG_SYS_CFG1);
+
 	memset(&t, 0, sizeof(t));
 	t.sync_clk = 0;
 	t.cs_on = 0;
@@ -74,7 +81,16 @@ static int omap2_onenand_set_async_mode(int cs, void __iomem *onenand_base)
 			  GPMC_CONFIG1_DEVICESIZE_16 |
 			  GPMC_CONFIG1_MUXADDDATA);
 
-	return gpmc_cs_set_timings(cs, &t);
+	err = gpmc_cs_set_timings(cs, &t);
+	if (err)
+		return err;
+
+	/* Ensure sync read and sync write are disabled */
+	reg = readw(onenand_base + ONENAND_REG_SYS_CFG1);
+	reg &= ~ONENAND_SYS_CFG1_SYNC_READ & ~ONENAND_SYS_CFG1_SYNC_WRITE;
+	writew(reg, onenand_base + ONENAND_REG_SYS_CFG1);
+
+	return 0;
 }
 
 static void set_onenand_cfg(void __iomem *onenand_base, int latency,
@@ -124,7 +140,8 @@ static int omap2_onenand_set_sync_mode(struct omap_onenand_platform_data *cfg,
 	} else if (cfg->flags & ONENAND_SYNC_READWRITE) {
 		sync_read = 1;
 		sync_write = 1;
-	}
+	} else
+		return omap2_onenand_set_async_mode(cs, onenand_base);
 
 	if (!freq) {
 		/* Very first call freq is not known */
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 458990e20c60..a98201cc265c 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -48,6 +48,28 @@ int omap_chip_is(struct omap_chip_id oci)
 }
 EXPORT_SYMBOL(omap_chip_is);
 
+int omap_type(void)
+{
+	u32 val = 0;
+
+	if (cpu_is_omap24xx())
+		val = omap_ctrl_readl(OMAP24XX_CONTROL_STATUS);
+	else if (cpu_is_omap34xx())
+		val = omap_ctrl_readl(OMAP343X_CONTROL_STATUS);
+	else {
+		pr_err("Cannot detect omap type!\n");
+		goto out;
+	}
+
+	val &= OMAP2_DEVICETYPE_MASK;
+	val >>= 8;
+
+out:
+	return val;
+}
+EXPORT_SYMBOL(omap_type);
+
+
 /*----------------------------------------------------------------------------*/
 
 #define OMAP_TAP_IDCODE		0x0204
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 32afd9448216..3a86b0f66031 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -21,6 +21,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/io.h>
+#include <linux/clk.h>
 
 #include <asm/tlb.h>
 
@@ -241,6 +242,40 @@ void __init omap2_map_common_io(void)
 	omapfb_reserve_sdram();
 }
 
+/*
+ * omap2_init_reprogram_sdrc - reprogram SDRC timing parameters
+ *
+ * Sets the CORE DPLL3 M2 divider to the same value that it's at
+ * currently.  This has the effect of setting the SDRC SDRAM AC timing
+ * registers to the values currently defined by the kernel.  Currently
+ * only defined for OMAP3; will return 0 if called on OMAP2.  Returns
+ * -EINVAL if the dpll3_m2_ck cannot be found, 0 if called on OMAP2,
+ * or passes along the return value of clk_set_rate().
+ */
+static int __init _omap2_init_reprogram_sdrc(void)
+{
+	struct clk *dpll3_m2_ck;
+	int v = -EINVAL;
+	long rate;
+
+	if (!cpu_is_omap34xx())
+		return 0;
+
+	dpll3_m2_ck = clk_get(NULL, "dpll3_m2_ck");
+	if (!dpll3_m2_ck)
+		return -EINVAL;
+
+	rate = clk_get_rate(dpll3_m2_ck);
+	pr_info("Reprogramming SDRC clock to %ld Hz\n", rate);
+	v = clk_set_rate(dpll3_m2_ck, rate);
+	if (v)
+		pr_err("dpll3_m2_clk rate change failed: %d\n", v);
+
+	clk_put(dpll3_m2_ck);
+
+	return v;
+}
+
 void __init omap2_init_common_hw(struct omap_sdrc_params *sp)
 {
 	omap2_mux_init();
@@ -249,6 +284,7 @@ void __init omap2_init_common_hw(struct omap_sdrc_params *sp)
 	clkdm_init(clockdomains_omap, clkdm_pwrdm_autodeps);
 	omap2_clk_init();
 	omap2_sdrc_init(sp);
+	_omap2_init_reprogram_sdrc();
 #endif
 	gpmc_init();
 }
diff --git a/arch/arm/mach-omap2/mailbox.c b/arch/arm/mach-omap2/mailbox.c
index fd5b8a5925cc..6f71f3730c97 100644
--- a/arch/arm/mach-omap2/mailbox.c
+++ b/arch/arm/mach-omap2/mailbox.c
@@ -282,12 +282,12 @@ static int __devinit omap2_mbox_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	/* DSP or IVA2 IRQ */
-	mbox_dsp_info.irq = platform_get_irq(pdev, 0);
-	if (mbox_dsp_info.irq < 0) {
+	ret = platform_get_irq(pdev, 0);
+	if (ret < 0) {
 		dev_err(&pdev->dev, "invalid irq resource\n");
-		ret = -ENODEV;
 		goto err_dsp;
 	}
+	mbox_dsp_info.irq = ret;
 
 	ret = omap_mbox_register(&pdev->dev, &mbox_dsp_info);
 	if (ret)
diff --git a/arch/arm/mach-omap2/mmc-twl4030.c b/arch/arm/mach-omap2/mmc-twl4030.c
index 9756a878fd90..1541fd4c8d0f 100644
--- a/arch/arm/mach-omap2/mmc-twl4030.c
+++ b/arch/arm/mach-omap2/mmc-twl4030.c
@@ -263,8 +263,19 @@ static int twl_mmc1_set_power(struct device *dev, int slot, int power_on,
 static int twl_mmc23_set_power(struct device *dev, int slot, int power_on, int vdd)
 {
 	int ret = 0;
-	struct twl_mmc_controller *c = &hsmmc[1];
+	struct twl_mmc_controller *c = NULL;
 	struct omap_mmc_platform_data *mmc = dev->platform_data;
+	int i;
+
+	for (i = 1; i < ARRAY_SIZE(hsmmc); i++) {
+		if (mmc == hsmmc[i].mmc) {
+			c = &hsmmc[i];
+			break;
+		}
+	}
+
+	if (c == NULL)
+		return -ENODEV;
 
 	/* If we don't see a Vcc regulator, assume it's a fixed
 	 * voltage always-on regulator.
diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c
index 73e2971b1757..983f1cb676be 100644
--- a/arch/arm/mach-omap2/powerdomain.c
+++ b/arch/arm/mach-omap2/powerdomain.c
@@ -1099,7 +1099,7 @@ int pwrdm_wait_transition(struct powerdomain *pwrdm)
 	       (c++ < PWRDM_TRANSITION_BAILOUT))
 		udelay(1);
 
-	if (c >= PWRDM_TRANSITION_BAILOUT) {
+	if (c > PWRDM_TRANSITION_BAILOUT) {
 		printk(KERN_ERR "powerdomain: waited too long for "
 		       "powerdomain %s to complete transition\n", pwrdm->name);
 		return -EAGAIN;
diff --git a/arch/arm/mach-omap2/sram34xx.S b/arch/arm/mach-omap2/sram34xx.S
index c080c82521e1..f41f8d96ddba 100644
--- a/arch/arm/mach-omap2/sram34xx.S
+++ b/arch/arm/mach-omap2/sram34xx.S
@@ -3,13 +3,12 @@
  *
  * Omap3 specific functions that need to be run in internal SRAM
  *
- * (C) Copyright 2007
- * Texas Instruments Inc.
- * Rajendra Nayak <rnayak@ti.com>
+ * Copyright (C) 2004, 2007, 2008 Texas Instruments, Inc.
+ * Copyright (C) 2008 Nokia Corporation
  *
- * (C) Copyright 2004
- * Texas Instruments, <www.ti.com>
+ * Rajendra Nayak <rnayak@ti.com>
  * Richard Woodruff <r-woodruff2@ti.com>
+ * Paul Walmsley
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
@@ -37,61 +36,112 @@
 
 	.text
 
+/* r4 parameters */
+#define SDRC_NO_UNLOCK_DLL		0x0
+#define SDRC_UNLOCK_DLL			0x1
+
+/* SDRC_DLLA_CTRL bit settings */
+#define FIXEDDELAY_SHIFT		24
+#define FIXEDDELAY_MASK			(0xff << FIXEDDELAY_SHIFT)
+#define DLLIDLE_MASK			0x4
+
+/*
+ * SDRC_DLLA_CTRL default values: TI hardware team indicates that
+ * FIXEDDELAY should be initialized to 0xf.  This apparently was
+ * empirically determined during process testing, so no derivation
+ * was provided.
+ */
+#define FIXEDDELAY_DEFAULT		(0x0f << FIXEDDELAY_SHIFT)
+
+/* SDRC_DLLA_STATUS bit settings */
+#define LOCKSTATUS_MASK			0x4
+
+/* SDRC_POWER bit settings */
+#define SRFRONIDLEREQ_MASK		0x40
+#define PWDENA_MASK			0x4
+
+/* CM_IDLEST1_CORE bit settings */
+#define ST_SDRC_MASK			0x2
+
+/* CM_ICLKEN1_CORE bit settings */
+#define EN_SDRC_MASK			0x2
+
+/* CM_CLKSEL1_PLL bit settings */
+#define CORE_DPLL_CLKOUT_DIV_SHIFT	0x1b
+
 /*
- * Change frequency of core dpll
- * r0 = sdrc_rfr_ctrl r1 = sdrc_actim_ctrla r2 = sdrc_actim_ctrlb r3 = M2
- * r4 = Unlock SDRC DLL? (1 = yes, 0 = no) -- only unlock DLL for
+ * omap3_sram_configure_core_dpll - change DPLL3 M2 divider
+ * r0 = new SDRC_RFR_CTRL register contents
+ * r1 = new SDRC_ACTIM_CTRLA register contents
+ * r2 = new SDRC_ACTIM_CTRLB register contents
+ * r3 = new M2 divider setting (only 1 and 2 supported right now)
+ * r4 = unlock SDRC DLL? (1 = yes, 0 = no).  Only unlock DLL for
  *      SDRC rates < 83MHz
+ * r5 = number of MPU cycles to wait for SDRC to stabilize after
+ *      reprogramming the SDRC when switching to a slower MPU speed
+ * r6 = new SDRC_MR_0 register value
+ * r7 = increasing SDRC rate? (1 = yes, 0 = no)
+ *
  */
 ENTRY(omap3_sram_configure_core_dpll)
 	stmfd	sp!, {r1-r12, lr}	@ store regs to stack
 	ldr	r4, [sp, #52]		@ pull extra args off the stack
+	ldr	r5, [sp, #56]		@ load extra args from the stack
+	ldr	r6, [sp, #60]		@ load extra args from the stack
+	ldr	r7, [sp, #64]		@ load extra args from the stack
 	dsb				@ flush buffered writes to interconnect
-	cmp	r3, #0x2
-	blne	configure_sdrc
-	cmp	r4, #0x1
+	cmp	r7, #1			@ if increasing SDRC clk rate,
+	bleq	configure_sdrc		@ program the SDRC regs early (for RFR)
+	cmp	r4, #SDRC_UNLOCK_DLL	@ set the intended DLL state
 	bleq	unlock_dll
 	blne	lock_dll
-	bl	sdram_in_selfrefresh	@ put the SDRAM in self refresh
-	bl 	configure_core_dpll
-	bl	enable_sdrc
-	cmp	r4, #0x1
+	bl	sdram_in_selfrefresh	@ put SDRAM in self refresh, idle SDRC
+	bl 	configure_core_dpll	@ change the DPLL3 M2 divider
+	bl	enable_sdrc		@ take SDRC out of idle
+	cmp	r4, #SDRC_UNLOCK_DLL	@ wait for DLL status to change
 	bleq	wait_dll_unlock
 	blne	wait_dll_lock
-	cmp	r3, #0x1
-	blne	configure_sdrc
+	cmp	r7, #1			@ if increasing SDRC clk rate,
+	beq	return_to_sdram		@ return to SDRAM code, otherwise,
+	bl	configure_sdrc		@ reprogram SDRC regs now
+	mov	r12, r5
+	bl	wait_clk_stable		@ wait for SDRC to stabilize
+return_to_sdram:
 	isb				@ prevent speculative exec past here
 	mov 	r0, #0 			@ return value
 	ldmfd	sp!, {r1-r12, pc}	@ restore regs and return
 unlock_dll:
 	ldr	r11, omap3_sdrc_dlla_ctrl
 	ldr	r12, [r11]
-	orr	r12, r12, #0x4
+	and	r12, r12, #FIXEDDELAY_MASK
+	orr	r12, r12, #FIXEDDELAY_DEFAULT
+	orr	r12, r12, #DLLIDLE_MASK
 	str	r12, [r11]		@ (no OCP barrier needed)
 	bx	lr
 lock_dll:
 	ldr	r11, omap3_sdrc_dlla_ctrl
 	ldr	r12, [r11]
-	bic	r12, r12, #0x4
+	bic	r12, r12, #DLLIDLE_MASK
 	str	r12, [r11]		@ (no OCP barrier needed)
 	bx	lr
 sdram_in_selfrefresh:
 	ldr	r11, omap3_sdrc_power	@ read the SDRC_POWER register
 	ldr	r12, [r11]		@ read the contents of SDRC_POWER
 	mov	r9, r12			@ keep a copy of SDRC_POWER bits
-	orr 	r12, r12, #0x40		@ enable self refresh on idle req
-	bic 	r12, r12, #0x4		@ clear PWDENA
+	orr 	r12, r12, #SRFRONIDLEREQ_MASK	@ enable self refresh on idle
+	bic 	r12, r12, #PWDENA_MASK	@ clear PWDENA
 	str 	r12, [r11]		@ write back to SDRC_POWER register
 	ldr	r12, [r11]		@ posted-write barrier for SDRC
+idle_sdrc:
 	ldr	r11, omap3_cm_iclken1_core	@ read the CM_ICLKEN1_CORE reg
 	ldr	r12, [r11]
-	bic	r12, r12, #0x2		@ disable iclk bit for SDRC
+	bic	r12, r12, #EN_SDRC_MASK		@ disable iclk bit for SDRC
 	str 	r12, [r11]
 wait_sdrc_idle:
 	ldr 	r11, omap3_cm_idlest1_core
 	ldr 	r12, [r11]
-	and 	r12, r12, #0x2		@ check for SDRC idle
-	cmp 	r12, #2
+	and 	r12, r12, #ST_SDRC_MASK		@ check for SDRC idle
+	cmp 	r12, #ST_SDRC_MASK
 	bne 	wait_sdrc_idle
 	bx 	lr
 configure_core_dpll:
@@ -99,36 +149,23 @@ configure_core_dpll:
 	ldr	r12, [r11]
 	ldr	r10, core_m2_mask_val	@ modify m2 for core dpll
 	and	r12, r12, r10
-	orr	r12, r12, r3, lsl #0x1B	@ r3 contains the M2 val
+	orr	r12, r12, r3, lsl #CORE_DPLL_CLKOUT_DIV_SHIFT
 	str	r12, [r11]
 	ldr	r12, [r11]		@ posted-write barrier for CM
-	mov 	r12, #0x800		@ wait for the clock to stabilise
-	cmp	r3, #2
-	bne	wait_clk_stable
 	bx	lr
 wait_clk_stable:
 	subs 	r12, r12, #1
 	bne	wait_clk_stable
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
 	bx	lr
 enable_sdrc:
 	ldr 	r11, omap3_cm_iclken1_core
 	ldr	r12, [r11]
-	orr 	r12, r12, #0x2		@ enable iclk bit for SDRC
+	orr 	r12, r12, #EN_SDRC_MASK		@ enable iclk bit for SDRC
 	str 	r12, [r11]
 wait_sdrc_idle1:
 	ldr 	r11, omap3_cm_idlest1_core
 	ldr	r12, [r11]
-	and 	r12, r12, #0x2
+	and 	r12, r12, #ST_SDRC_MASK
 	cmp	r12, #0
 	bne	wait_sdrc_idle1
 restore_sdrc_power_val:
@@ -138,14 +175,14 @@ restore_sdrc_power_val:
 wait_dll_lock:
 	ldr	r11, omap3_sdrc_dlla_status
 	ldr	r12, [r11]
-	and 	r12, r12, #0x4
-	cmp	r12, #0x4
+	and 	r12, r12, #LOCKSTATUS_MASK
+	cmp	r12, #LOCKSTATUS_MASK
 	bne	wait_dll_lock
 	bx	lr
 wait_dll_unlock:
 	ldr	r11, omap3_sdrc_dlla_status
 	ldr	r12, [r11]
-	and	r12, r12, #0x4
+	and	r12, r12, #LOCKSTATUS_MASK
 	cmp	r12, #0x0
 	bne	wait_dll_unlock
 	bx	lr
@@ -156,7 +193,9 @@ configure_sdrc:
 	str	r1, [r11]
 	ldr	r11, omap3_sdrc_actim_ctrlb
 	str	r2, [r11]
-	ldr	r2, [r11]		@ posted-write barrier for SDRC
+	ldr	r11, omap3_sdrc_mr_0
+	str	r6, [r11]
+	ldr	r6, [r11]		@ posted-write barrier for SDRC
 	bx	lr
 
 omap3_sdrc_power:
@@ -173,6 +212,8 @@ omap3_sdrc_actim_ctrla:
 	.word OMAP34XX_SDRC_REGADDR(SDRC_ACTIM_CTRL_A_0)
 omap3_sdrc_actim_ctrlb:
 	.word OMAP34XX_SDRC_REGADDR(SDRC_ACTIM_CTRL_B_0)
+omap3_sdrc_mr_0:
+	.word OMAP34XX_SDRC_REGADDR(SDRC_MR_0)
 omap3_sdrc_dlla_status:
 	.word OMAP34XX_SDRC_REGADDR(SDRC_DLLA_STATUS)
 omap3_sdrc_dlla_ctrl: