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| author | Marek Vasut <marex@denx.de> | 2013-01-21 14:57:03 +0000 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2013-01-28 06:40:38 +0100 |
| commit | 8303ed128a55519f19c5f11087032d4bc4e0537a (patch) | |
| tree | 912071001d65dba16e44616e20a8a8818bfdac26 | |
| parent | 71a988aa630f013b8425789351971dc4e202593d (diff) | |
| download | u-boot-imx-8303ed128a55519f19c5f11087032d4bc4e0537a.zip u-boot-imx-8303ed128a55519f19c5f11087032d4bc4e0537a.tar.gz u-boot-imx-8303ed128a55519f19c5f11087032d4bc4e0537a.tar.bz2 | |
mxs: Boost the memory power supply
The memory power supply on MX23 didn't pump out enough juice into
the DRAM chip, thus caused occasional memory corruption. Fix this.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>
| -rw-r--r-- | arch/arm/cpu/arm926ejs/mxs/spl_mem_init.c | 4 | ||||
| -rw-r--r-- | board/olimex/mx23_olinuxino/spl_boot.c | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm/cpu/arm926ejs/mxs/spl_mem_init.c b/arch/arm/cpu/arm926ejs/mxs/spl_mem_init.c index 5944dd2..836e636 100644 --- a/arch/arm/cpu/arm926ejs/mxs/spl_mem_init.c +++ b/arch/arm/cpu/arm926ejs/mxs/spl_mem_init.c @@ -230,7 +230,7 @@ static void mx23_mem_setup_vddmem(void) struct mxs_power_regs *power_regs = (struct mxs_power_regs *)MXS_POWER_BASE; - writel((0x10 << POWER_VDDMEMCTRL_TRG_OFFSET) | + writel((0x12 << POWER_VDDMEMCTRL_TRG_OFFSET) | POWER_VDDMEMCTRL_ENABLE_ILIMIT | POWER_VDDMEMCTRL_ENABLE_LINREG | POWER_VDDMEMCTRL_PULLDOWN_ACTIVE, @@ -238,7 +238,7 @@ static void mx23_mem_setup_vddmem(void) early_delay(10000); - writel((0x10 << POWER_VDDMEMCTRL_TRG_OFFSET) | + writel((0x12 << POWER_VDDMEMCTRL_TRG_OFFSET) | POWER_VDDMEMCTRL_ENABLE_LINREG, &power_regs->hw_power_vddmemctrl); } diff --git a/board/olimex/mx23_olinuxino/spl_boot.c b/board/olimex/mx23_olinuxino/spl_boot.c index aaebe6c..6cf669f 100644 --- a/board/olimex/mx23_olinuxino/spl_boot.c +++ b/board/olimex/mx23_olinuxino/spl_boot.c @@ -29,7 +29,7 @@ #include <asm/arch/imx-regs.h> #include <asm/arch/sys_proto.h> -#define MUX_CONFIG_EMI (MXS_PAD_3V3 | MXS_PAD_12MA | MXS_PAD_NOPULL) +#define MUX_CONFIG_EMI (MXS_PAD_3V3 | MXS_PAD_16MA | MXS_PAD_PULLUP) const iomux_cfg_t iomux_setup[] = { /* DUART */ |