Hi Stephan
On 7/6/21 4:54 PM, Stephan Gerhold wrote:
For the eMMC on ST-Ericsson Ux500v2 we need slightly different configuration values. Use the existing switch statement to match the peripheral ID of Ux500v2 (0x10480180) and override the necessary values to make the eMMC work on devices with ST-Ericsson Ux500.
Cc: Linus Walleij linus.walleij@linaro.org Signed-off-by: Stephan Gerhold stephan@gerhold.net
drivers/mmc/arm_pl180_mmci.c | 22 +++++++++++++++------- drivers/mmc/arm_pl180_mmci.h | 1 + 2 files changed, 16 insertions(+), 7 deletions(-)
diff --git a/drivers/mmc/arm_pl180_mmci.c b/drivers/mmc/arm_pl180_mmci.c index 809b86570a..f99b5f997e 100644 --- a/drivers/mmc/arm_pl180_mmci.c +++ b/drivers/mmc/arm_pl180_mmci.c @@ -443,22 +443,30 @@ static int arm_pl180_mmc_probe(struct udevice *dev) SDI_CLKCR_HWFC_EN; host->clock_in = clk_get_rate(&clk);
- cfg->name = dev->name;
- cfg->voltages = VOLTAGE_WINDOW_SD;
- cfg->host_caps = 0;
- cfg->f_min = host->clock_in / (2 * (SDI_CLKCR_CLKDIV_INIT_V1 + 1));
- cfg->f_max = MMC_CLOCK_MAX;
- cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
- periphid = dev_read_u32_default(dev, "arm,primecell-periphid", 0); switch (periphid) { case STM32_MMCI_ID: /* stm32 variant */ host->version2 = false; break;
- case UX500V2_MMCI_ID:
host->pwr_init = SDI_PWR_OPD | SDI_PWR_PWRCTRL_ON;host->clkdiv_init = SDI_CLKCR_CLKDIV_INIT_V2 | SDI_CLKCR_CLKEN |SDI_CLKCR_HWFC_EN;cfg->voltages = VOLTAGE_WINDOW_MMC;cfg->f_min = host->clock_in / (2 + SDI_CLKCR_CLKDIV_INIT_V2);host->version2 = true;break;
cfg->name = dev->name;
cfg->voltages = VOLTAGE_WINDOW_SD;
cfg->host_caps = 0;
cfg->f_min = host->clock_in / (2 * (SDI_CLKCR_CLKDIV_INIT_V1 + 1));
cfg->f_max = MMC_CLOCK_MAX;
cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
gpio_request_by_name(dev, "cd-gpios", 0, &host->cd_gpio, GPIOD_IS_IN);
ret = mmc_of_parse(dev, cfg);
diff --git a/drivers/mmc/arm_pl180_mmci.h b/drivers/mmc/arm_pl180_mmci.h index 61ee96a112..15c29beadb 100644 --- a/drivers/mmc/arm_pl180_mmci.h +++ b/drivers/mmc/arm_pl180_mmci.h @@ -142,6 +142,7 @@ #define SDI_FIFO_BURST_SIZE 8
#define STM32_MMCI_ID 0x00880180 +#define UX500V2_MMCI_ID 0x10480180
struct sdi_registers { u32 power; /* 0x00*/
Reviewed-by: Patrice Chotard patrice.chotard@foss.st.com Tested-by: Patrice Chotard patrice.chotard@foss.st.com on stm32f769-disco
Thanks Patrice