diff options
| author | Caleb Connolly <caleb.connolly@linaro.org> | 2024-06-21 03:53:09 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2024-09-05 19:08:14 -0600 |
| commit | e24c8cc65841b8885cca7910a43096a976b7244b (patch) | |
| tree | 267007604175d60a62b6a4dfcbbfb91b589e2478 /drivers | |
| parent | efddda8f03f027cf6ed0f1d7e479c87c26247822 (diff) | |
| download | u-boot-e24c8cc65841b8885cca7910a43096a976b7244b.tar.gz | |
mmc: msm_sdhci: program core_vendor_spec
After resetting the host controller, program in the POR val for this
register just like the Linux driver does.
This seems to help with initialization when running U-Boot as the primary
bootloader on some boards.
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/msm_sdhci.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/mmc/msm_sdhci.c b/drivers/mmc/msm_sdhci.c index f5e9930c799..4e5c932c071 100644 --- a/drivers/mmc/msm_sdhci.c +++ b/drivers/mmc/msm_sdhci.c @@ -32,6 +32,8 @@ #define SDCC_MCI_STATUS2_MCI_ACT 0x1 #define SDCC_MCI_HC_MODE 0x78 +#define CORE_VENDOR_SPEC_POR_VAL 0xa9c + struct msm_sdhc_plat { struct mmc_config cfg; struct mmc mmc; @@ -46,6 +48,7 @@ struct msm_sdhc { struct msm_sdhc_variant_info { bool mci_removed; + u32 core_vendor_spec; u32 core_vendor_spec_capabilities0; }; @@ -54,11 +57,14 @@ DECLARE_GLOBAL_DATA_PTR; static int msm_sdc_clk_init(struct udevice *dev) { struct msm_sdhc *prv = dev_get_priv(dev); + const struct msm_sdhc_variant_info *var_info; ofnode node = dev_ofnode(dev); ulong clk_rate; int ret, i = 0, n_clks; const char *clk_name; + var_info = (void *)dev_get_driver_data(dev); + ret = ofnode_read_u32(node, "clock-frequency", (uint *)(&clk_rate)); if (ret) clk_rate = 201500000; @@ -105,6 +111,9 @@ static int msm_sdc_clk_init(struct udevice *dev) return -EINVAL; } + writel_relaxed(CORE_VENDOR_SPEC_POR_VAL, + prv->host.ioaddr + var_info->core_vendor_spec); + return 0; } @@ -254,12 +263,14 @@ static int msm_sdc_bind(struct udevice *dev) static const struct msm_sdhc_variant_info msm_sdhc_mci_var = { .mci_removed = false, + .core_vendor_spec = 0x10c, .core_vendor_spec_capabilities0 = 0x11c, }; static const struct msm_sdhc_variant_info msm_sdhc_v5_var = { .mci_removed = true, + .core_vendor_spec = 0x20c, .core_vendor_spec_capabilities0 = 0x21c, }; |