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-rw-r--r--arch/arm/cpu/arm926ejs/mxs/clock.c3
-rw-r--r--arch/arm/cpu/arm926ejs/mxs/mxs_init.h2
-rw-r--r--arch/arm/cpu/arm926ejs/mxs/spl_mem_init.c16
-rw-r--r--arch/arm/cpu/arm926ejs/mxs/spl_power_init.c2
-rw-r--r--arch/arm/cpu/arm926ejs/mxs/timer.c39
-rw-r--r--arch/arm/cpu/arm926ejs/mxs/u-boot-spl.lds6
6 files changed, 47 insertions, 21 deletions
diff --git a/arch/arm/cpu/arm926ejs/mxs/clock.c b/arch/arm/cpu/arm926ejs/mxs/clock.c
index 00b9aba457..43e766334c 100644
--- a/arch/arm/cpu/arm926ejs/mxs/clock.c
+++ b/arch/arm/cpu/arm926ejs/mxs/clock.c
@@ -289,7 +289,8 @@ static uint32_t mxs_get_sspclk(enum mxs_sspclock ssp)
void mxs_set_ssp_busclock(unsigned int bus, uint32_t freq)
{
struct mxs_ssp_regs *ssp_regs;
- const uint32_t sspclk = mxs_get_sspclk(bus);
+ const enum mxs_sspclock clk = mxs_ssp_clock_by_bus(bus);
+ const uint32_t sspclk = mxs_get_sspclk(clk);
uint32_t reg;
uint32_t divide, rate, tgtclk;
diff --git a/arch/arm/cpu/arm926ejs/mxs/mxs_init.h b/arch/arm/cpu/arm926ejs/mxs/mxs_init.h
index 2ddc5bc0c6..084def5b12 100644
--- a/arch/arm/cpu/arm926ejs/mxs/mxs_init.h
+++ b/arch/arm/cpu/arm926ejs/mxs/mxs_init.h
@@ -30,7 +30,7 @@ void early_delay(int delay);
void mxs_power_init(void);
-#ifdef CONFIG_SPL_MX28_PSWITCH_WAIT
+#ifdef CONFIG_SPL_MXS_PSWITCH_WAIT
void mxs_power_wait_pswitch(void);
#else
static inline void mxs_power_wait_pswitch(void) { }
diff --git a/arch/arm/cpu/arm926ejs/mxs/spl_mem_init.c b/arch/arm/cpu/arm926ejs/mxs/spl_mem_init.c
index f8392f6398..fdac73cfaa 100644
--- a/arch/arm/cpu/arm926ejs/mxs/spl_mem_init.c
+++ b/arch/arm/cpu/arm926ejs/mxs/spl_mem_init.c
@@ -27,6 +27,7 @@
#include <config.h>
#include <asm/io.h>
#include <asm/arch/imx-regs.h>
+#include <asm/arch/sys_proto.h>
#include <linux/compiler.h>
#include "mxs_init.h"
@@ -119,6 +120,10 @@ static void initialize_dram_values(void)
writel(dram_vals[i], MXS_DRAM_BASE + (4 * i));
#ifdef CONFIG_MX23
+ /*
+ * Enable tRAS lockout in HW_DRAM_CTL08 ; it must be the last
+ * element to be set
+ */
writel((1 << 24), MXS_DRAM_BASE + (4 * 8));
#endif
}
@@ -229,7 +234,7 @@ static void mx23_mem_setup_vddmem(void)
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
- writel((0x12 << POWER_VDDMEMCTRL_TRG_OFFSET) |
+ writel((0x10 << POWER_VDDMEMCTRL_TRG_OFFSET) |
POWER_VDDMEMCTRL_ENABLE_ILIMIT |
POWER_VDDMEMCTRL_ENABLE_LINREG |
POWER_VDDMEMCTRL_PULLDOWN_ACTIVE,
@@ -237,13 +242,20 @@ static void mx23_mem_setup_vddmem(void)
early_delay(10000);
- writel((0x12 << POWER_VDDMEMCTRL_TRG_OFFSET) |
+ writel((0x10 << POWER_VDDMEMCTRL_TRG_OFFSET) |
POWER_VDDMEMCTRL_ENABLE_LINREG,
&power_regs->hw_power_vddmemctrl);
}
static void mx23_mem_init(void)
{
+ /*
+ * Reset/ungate the EMI block. This is essential, otherwise the system
+ * suffers from memory instability. This thing is mx23 specific and is
+ * no longer present on mx28.
+ */
+ mxs_reset_block((struct mxs_register_32 *)MXS_EMI_BASE);
+
mx23_mem_setup_vddmem();
/*
diff --git a/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c b/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c
index e9d6302b7a..287c698ff7 100644
--- a/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c
+++ b/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c
@@ -921,7 +921,7 @@ void mxs_power_init(void)
early_delay(1000);
}
-#ifdef CONFIG_SPL_MX28_PSWITCH_WAIT
+#ifdef CONFIG_SPL_MXS_PSWITCH_WAIT
void mxs_power_wait_pswitch(void)
{
struct mxs_power_regs *power_regs =
diff --git a/arch/arm/cpu/arm926ejs/mxs/timer.c b/arch/arm/cpu/arm926ejs/mxs/timer.c
index 373841180f..2039106e40 100644
--- a/arch/arm/cpu/arm926ejs/mxs/timer.c
+++ b/arch/arm/cpu/arm926ejs/mxs/timer.c
@@ -32,7 +32,11 @@
#include <asm/arch/sys_proto.h>
/* Maximum fixed count */
-#define TIMER_LOAD_VAL 0xffffffff
+#if defined(CONFIG_MX23)
+#define TIMER_LOAD_VAL 0xffff
+#elif defined(CONFIG_MX28)
+#define TIMER_LOAD_VAL 0xffffffff
+#endif
DECLARE_GLOBAL_DATA_PTR;
@@ -42,22 +46,22 @@ DECLARE_GLOBAL_DATA_PTR;
/*
* This driver uses 1kHz clock source.
*/
-#define MX28_INCREMENTER_HZ 1000
+#define MXS_INCREMENTER_HZ 1000
static inline unsigned long tick_to_time(unsigned long tick)
{
- return tick / (MX28_INCREMENTER_HZ / CONFIG_SYS_HZ);
+ return tick / (MXS_INCREMENTER_HZ / CONFIG_SYS_HZ);
}
static inline unsigned long time_to_tick(unsigned long time)
{
- return time * (MX28_INCREMENTER_HZ / CONFIG_SYS_HZ);
+ return time * (MXS_INCREMENTER_HZ / CONFIG_SYS_HZ);
}
/* Calculate how many ticks happen in "us" microseconds */
static inline unsigned long us_to_tick(unsigned long us)
{
- return (us * MX28_INCREMENTER_HZ) / 1000000;
+ return (us * MXS_INCREMENTER_HZ) / 1000000;
}
int timer_init(void)
@@ -69,7 +73,11 @@ int timer_init(void)
mxs_reset_block(&timrot_regs->hw_timrot_rotctrl_reg);
/* Set fixed_count to 0 */
+#if defined(CONFIG_MX23)
+ writel(0, &timrot_regs->hw_timrot_timcount0);
+#elif defined(CONFIG_MX28)
writel(0, &timrot_regs->hw_timrot_fixed_count0);
+#endif
/* Set UPDATE bit and 1Khz frequency */
writel(TIMROT_TIMCTRLn_UPDATE | TIMROT_TIMCTRLn_RELOAD |
@@ -77,7 +85,11 @@ int timer_init(void)
&timrot_regs->hw_timrot_timctrl0);
/* Set fixed_count to maximal value */
+#if defined(CONFIG_MX23)
+ writel(TIMER_LOAD_VAL - 1, &timrot_regs->hw_timrot_timcount0);
+#elif defined(CONFIG_MX28)
writel(TIMER_LOAD_VAL, &timrot_regs->hw_timrot_fixed_count0);
+#endif
return 0;
}
@@ -86,9 +98,16 @@ unsigned long long get_ticks(void)
{
struct mxs_timrot_regs *timrot_regs =
(struct mxs_timrot_regs *)MXS_TIMROT_BASE;
+ uint32_t now;
/* Current tick value */
- uint32_t now = readl(&timrot_regs->hw_timrot_running_count0);
+#if defined(CONFIG_MX23)
+ /* Upper bits are the valid ones. */
+ now = readl(&timrot_regs->hw_timrot_timcount0) >>
+ TIMROT_RUNNING_COUNTn_RUNNING_COUNT_OFFSET;
+#elif defined(CONFIG_MX28)
+ now = readl(&timrot_regs->hw_timrot_running_count0);
+#endif
if (lastdec >= now) {
/*
@@ -117,17 +136,17 @@ ulong get_timer(ulong base)
}
/* We use the HW_DIGCTL_MICROSECONDS register for sub-millisecond timer. */
-#define MX28_HW_DIGCTL_MICROSECONDS 0x8001c0c0
+#define MXS_HW_DIGCTL_MICROSECONDS 0x8001c0c0
void __udelay(unsigned long usec)
{
uint32_t old, new, incr;
uint32_t counter = 0;
- old = readl(MX28_HW_DIGCTL_MICROSECONDS);
+ old = readl(MXS_HW_DIGCTL_MICROSECONDS);
while (counter < usec) {
- new = readl(MX28_HW_DIGCTL_MICROSECONDS);
+ new = readl(MXS_HW_DIGCTL_MICROSECONDS);
/* Check if the timer wrapped. */
if (new < old) {
@@ -152,5 +171,5 @@ void __udelay(unsigned long usec)
ulong get_tbclk(void)
{
- return MX28_INCREMENTER_HZ;
+ return MXS_INCREMENTER_HZ;
}
diff --git a/arch/arm/cpu/arm926ejs/mxs/u-boot-spl.lds b/arch/arm/cpu/arm926ejs/mxs/u-boot-spl.lds
index fc0418afd1..67b204e447 100644
--- a/arch/arm/cpu/arm926ejs/mxs/u-boot-spl.lds
+++ b/arch/arm/cpu/arm926ejs/mxs/u-boot-spl.lds
@@ -51,12 +51,6 @@ SECTIONS
. = ALIGN(4);
- .u_boot_list : {
- #include <u-boot.lst>
- }
-
- . = ALIGN(4);
-
.rel.dyn : {
__rel_dyn_start = .;
*(.rel*)
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