leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

mmc: arm_pl180_mmci: Add configuration for ST-Ericsson Ux500v2

Browse Source 
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>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Tested-by: Patrice Chotard <patrice.chotard@foss.st.com> on stm32f769-disco
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
This commit is contained in:
Stephan Gerhold 2021-07-06 16:54:36 +02:00 committed by Peng Fan
parent 4daf2ec357
commit d890f23406
2 changed files with 18 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
drivers/mmc/arm_pl180_mmci.c
View File

@ -443,15 +443,6 @@ static int arm_pl180_mmc_probe(struct udevice *dev)
SDI_CLKCR_HWFC_EN;
host->clock_in = clk_get_rate(&clk);
periphid = dev_read_u32_default(dev, "arm,primecell-periphid", 0);
switch (periphid) {
case STM32_MMCI_ID: /* stm32 variant */
host->version2 = false;
break;
default:
host->version2 = true;
}
cfg->name = dev->name;
cfg->voltages = VOLTAGE_WINDOW_SD;
cfg->host_caps = 0;
@ -459,6 +450,23 @@ static int arm_pl180_mmc_probe(struct udevice *dev)
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;
default:
host->version2 = true;
}
gpio_request_by_name(dev, "cd-gpios", 0, &host->cd_gpio, GPIOD_IS_IN);
ret = mmc_of_parse(dev, cfg);

1
drivers/mmc/arm_pl180_mmci.h
View File

@ -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*/