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mmc: fix drv_e for sd in ultraHS sw

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This commit is contained in:
lintao 2014-07-14 11:43:27 +08:00
parent d8737bae4d
commit 541c41ff1d
1 changed files with 6 additions and 1 deletions
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7
drivers/mmc/host/dw_mmc-rockchip.c
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@ -327,7 +327,7 @@ static int dw_mci_rockchip_execute_tuning(struct dw_mci_slot *slot, u32 opcode,
u8 step;
u8 candidates_delayline[MAX_DELAY_LINE] = {0};
u8 candidates_degree[SDMMC_SHIFT_DEGREE_INVALID] = {4,4,4,4};
u8 default_drv = IO_DRV_8MA;
u8 default_drv;
u8 index = 0;
u8 start_degree = 0;
u32 start_delayline = 0;
@ -387,6 +387,11 @@ static int dw_mci_rockchip_execute_tuning(struct dw_mci_slot *slot, u32 opcode,
re_phase:
/* calcute slew rate & drv strength in timing tuning */
if(host->mmc->restrict_caps & RESTRICT_CARD_TYPE_SD)
default_drv = IO_DRV_4MA;
else
default_drv = IO_DRV_8MA;
dw_mci_rockchip_load_signal_integrity(host, SLEW_RATE_SLOW, default_drv);
/* Loop degree from 0 ~ 270 */
for(start_degree = SDMMC_SHIFT_DEGREE_0; start_degree < SDMMC_SHIFT_DEGREE_270; start_degree++){