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rockchip: rk3188: ram: add support for 16bit row address

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RK3188 using the same ddr_conf for both 15 bit and 16 bit row address.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
[Fixed compile-error by declaring 'row':]
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
This commit is contained in:
Kever Yang 2017-09-25 16:33:22 +08:00 • committed by Philipp Tomsich
parent ffd1cd67da
commit a27290a6f8
1 changed files with 9 additions and 2 deletions
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11
drivers/ram/rockchip/sdram_rk3188.c
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@ -682,11 +682,18 @@ out:
static int sdram_get_niu_config(struct rk3188_sdram_params *sdram_params) static int sdram_get_niu_config(struct rk3188_sdram_params *sdram_params)
{ {
int i, tmp, size, ret = 0; int i, tmp, size, row, ret = 0;
row = sdram_params->ch[0].cs0_row;
/*
* RK3188 share the rank and row bit15, we use same ddr config for 15bit
* and 16bit row
*/
if (row == 16)
row = 15;
tmp = sdram_params->ch[0].col - 9; tmp = sdram_params->ch[0].col - 9;
tmp -= (sdram_params->ch[0].bw == 2) ? 0 : 1; tmp -= (sdram_params->ch[0].bw == 2) ? 0 : 1;
tmp |= ((sdram_params->ch[0].cs0_row - 13) << 4); tmp |= ((row - 13) << 4);
size = sizeof(ddrconf_table)/sizeof(ddrconf_table[0]); size = sizeof(ddrconf_table)/sizeof(ddrconf_table[0]);
for (i = 0; i < size; i++) for (i = 0; i < size; i++)
if (tmp == ddrconf_table[i]) if (tmp == ddrconf_table[i])