| Message ID | 1361148335-19197-3-git-send-email-otavio@ossystems.com.br |
|---|---|
| State | Superseded |
| Delegated to: | Stefano Babic |
| Headers | show |
diff --git a/arch/arm/cpu/arm926ejs/mxs/spl_mem_init.c b/arch/arm/cpu/arm926ejs/mxs/spl_mem_init.c index f8392f6..4db9baa 100644 --- a/arch/arm/cpu/arm926ejs/mxs/spl_mem_init.c +++ b/arch/arm/cpu/arm926ejs/mxs/spl_mem_init.c @@ -119,6 +119,10 @@ 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 }
Add a comment about the tRAS lockout setting of HW_DRAM_CTL08 to enable the 'Fast Auto Pre-Charge' found in the memory chip. The setting is applied after memory initialization and it is worth document it. Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> --- Changes in v4: None Changes in v3: - Extend code comment to be more verbose (Marek) Changes in v2: - Extend code comment to explicit say it needs to be there. arch/arm/cpu/arm926ejs/mxs/spl_mem_init.c | 4 ++++ 1 file changed, 4 insertions(+)