edb93xx: Fix SDRAM initialization
PATCH 1/1 edb93xx: Fix SDRAM initialization
Before programming the SDRAM mode registers, mode register update mode must be selected by setting the MRS bit and clearing INIT in GlConfig
Signed-off-by Matthias Kaehlcke <[email protected]>
--- board/edb93xx/sdram_cfg.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-)
board/edb93xx/sdram_cfg.c +5 -0
@@ -111,6 +111,11 @@ static void setup_refresh_timer(void)static void program_mode_registers (void ) { +struct sdram_regs *sdram = (struct sdram_regs *)SDRAM_BASE ; + +/* Select mode register update mode */ +writel (GLCONFIG_MRS |GLCONFIG_CKE , &sdram->glconfig); +PROGRAM_MODE_REG (0 );#if (CONFIG_EP93XX_SDRAM_NUM_BANKS >=2 )
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Quoted 4 lines · Matthias Kaehlcke
Before programming the SDRAM mode registers, mode register update mode must be selected by setting the MRS bit and clearing INIT in GlConfig
Signed-off-by Matthias Kaehlcke <[email protected]>
Ok, applied
Sascha
Quoted 29 lines
--- board/edb93xx/sdram_cfg.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-)board/edb93xx/sdram_cfg.c +5
-0@@ -111,6 +111,11 @@ static void setup_refresh_timer(void)static void program_mode_registers (void ) { +struct sdram_regs *sdram = (struct sdram_regs *)SDRAM_BASE ; + +/* Select mode register update mode */ +writel (GLCONFIG_MRS |GLCONFIG_CKE , &sdram->glconfig); +PROGRAM_MODE_REG (0 );#if (CONFIG_EP93XX_SDRAM_NUM_BANKS >=2 )Signature · 7 lines
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