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ARM: mxs: let boards override entire dram parameter table

Browse source 
If many values differ from the defaults, overriding the full table
is simpler and more space efficient than tweaking it through
mxs_adjust_memory_params().

Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2018-04-27 10:45:15 +01:00 • committed by Stefano Babic
parent c5437e5b8a
commit 29b921b86c
1 changed files with 7 additions and 7 deletions
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14
arch/arm/cpu/arm926ejs/mxs/spl_mem_init.c
View file

@ -15,7 +15,7 @@
#include "mxs_init.h"
static uint32_t dram_vals[] = {
__weak uint32_t mxs_dram_vals[] = {
/*
* i.MX28 DDR2 at 200MHz
*/
@ -100,11 +100,11 @@ static void initialize_dram_values(void)
int i;
debug("SPL: Setting mx28 board specific SDRAM parameters\n");
mxs_adjust_memory_params(dram_vals);
mxs_adjust_memory_params(mxs_dram_vals);
debug("SPL: Applying SDRAM parameters\n");
for (i = 0; i < ARRAY_SIZE(dram_vals); i++)
writel(dram_vals[i], MXS_DRAM_BASE + (4 * i));
for (i = 0; i < ARRAY_SIZE(mxs_dram_vals); i++)
writel(mxs_dram_vals[i], MXS_DRAM_BASE + (4 * i));
}
#else
static void initialize_dram_values(void)
@ -112,7 +112,7 @@ static void initialize_dram_values(void)
int i;
debug("SPL: Setting mx23 board specific SDRAM parameters\n");
mxs_adjust_memory_params(dram_vals);
mxs_adjust_memory_params(mxs_dram_vals);
/*
* HW_DRAM_CTL27, HW_DRAM_CTL28 and HW_DRAM_CTL35 are not initialized as
@ -124,10 +124,10 @@ static void initialize_dram_values(void)
* So skip the initialization of these HW_DRAM_CTL registers.
*/
debug("SPL: Applying SDRAM parameters\n");
for (i = 0; i < ARRAY_SIZE(dram_vals); i++) {
for (i = 0; i < ARRAY_SIZE(mxs_dram_vals); i++) {
if (i == 8 || i == 27 || i == 28 || i == 35)
continue;
writel(dram_vals[i], MXS_DRAM_BASE + (4 * i));
writel(mxs_dram_vals[i], MXS_DRAM_BASE + (4 * i));
}
/*