diff options
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/mmci.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index 187dae143cc1..2fb893313044 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -52,6 +52,7 @@ static unsigned int fmax = 515633; * struct variant_data - MMCI variant-specific quirks * @clkreg: default value for MCICLOCK register * @clkreg_enable: enable value for MMCICLOCK register + * @clkreg_8bit_bus_enable: enable value for 8 bit bus * @datalength_bits: number of bits in the MMCIDATALENGTH register * @fifosize: number of bytes that can be written when MMCI_TXFIFOEMPTY * is asserted (likewise for RX) @@ -72,6 +73,7 @@ static unsigned int fmax = 515633; struct variant_data { unsigned int clkreg; unsigned int clkreg_enable; + unsigned int clkreg_8bit_bus_enable; unsigned int datalength_bits; unsigned int fifosize; unsigned int fifohalfsize; @@ -113,6 +115,7 @@ static struct variant_data variant_u300 = { .fifosize = 16 * 4, .fifohalfsize = 8 * 4, .clkreg_enable = MCI_ST_U300_HWFCEN, + .clkreg_8bit_bus_enable = MCI_ST_8BIT_BUS, .datalength_bits = 16, .sdio = true, .pwrreg_powerup = MCI_PWR_ON, @@ -139,6 +142,7 @@ static struct variant_data variant_ux500 = { .fifohalfsize = 8 * 4, .clkreg = MCI_CLK_ENABLE, .clkreg_enable = MCI_ST_UX500_HWFCEN, + .clkreg_8bit_bus_enable = MCI_ST_8BIT_BUS, .datalength_bits = 24, .sdio = true, .st_clkdiv = true, @@ -154,6 +158,7 @@ static struct variant_data variant_ux500v2 = { .fifohalfsize = 8 * 4, .clkreg = MCI_CLK_ENABLE, .clkreg_enable = MCI_ST_UX500_HWFCEN, + .clkreg_8bit_bus_enable = MCI_ST_8BIT_BUS, .datactrl_mask_ddrmode = MCI_ST_DPSM_DDRMODE, .datalength_bits = 24, .sdio = true, @@ -305,7 +310,7 @@ static void mmci_set_clkreg(struct mmci_host *host, unsigned int desired) if (host->mmc->ios.bus_width == MMC_BUS_WIDTH_4) clk |= MCI_4BIT_BUS; if (host->mmc->ios.bus_width == MMC_BUS_WIDTH_8) - clk |= MCI_ST_8BIT_BUS; + clk |= variant->clkreg_8bit_bus_enable; if (host->mmc->ios.timing == MMC_TIMING_UHS_DDR50 || host->mmc->ios.timing == MMC_TIMING_MMC_DDR52) |