diff options
| author | Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi@altera.com> | 2025-06-19 23:28:40 -0700 |
|---|---|---|
| committer | Peng Fan <peng.fan@nxp.com> | 2025-07-02 12:47:18 +0800 |
| commit | be7fc8f331d5da68f54a241f08206e49236649d9 (patch) | |
| tree | eea5c8418fe6b89c92aabd7c7153f27cdcc9198f | |
| parent | 49666c41e9f956682490c409f540bbc21f35cb70 (diff) | |
mmc: socfpga_dw_mmc: Retrieve clock manager address via DT
Update the MMC driver to retrieve the clock manager base address via
probing the clock manager node in the device tree.
Signed-off-by: Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi@altera.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
| -rw-r--r-- | drivers/mmc/socfpga_dw_mmc.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/drivers/mmc/socfpga_dw_mmc.c b/drivers/mmc/socfpga_dw_mmc.c index 9dc1ceaa09b..3b86bc9b18c 100644 --- a/drivers/mmc/socfpga_dw_mmc.c +++ b/drivers/mmc/socfpga_dw_mmc.c @@ -54,16 +54,30 @@ static int socfpga_dwmci_clksel(struct dwmci_host *host) u32 sdmmc_mask = ((priv->smplsel & 0x7) << SYSMGR_SDMMC_SMPLSEL_SHIFT) | ((priv->drvsel & 0x7) << SYSMGR_SDMMC_DRVSEL_SHIFT); + /* Get clock manager base address */ + struct udevice *clkmgr_dev; + int ret = uclass_get_device_by_name(UCLASS_CLK, "clock-controller@ffd10000", &clkmgr_dev); + + if (ret) { + printf("Failed to get clkmgr device: %d\n", ret); + return ret; + } + + fdt_addr_t clkmgr_base = dev_read_addr(clkmgr_dev); + + if (clkmgr_base == FDT_ADDR_T_NONE) { + printf("Failed to read base address from clkmgr DT node\n"); + return -EINVAL; + } + /* Disable SDMMC clock. */ - clrbits_le32(socfpga_get_clkmgr_addr() + CLKMGR_PERPLL_EN, + clrbits_le32(clkmgr_base + CLKMGR_PERPLL_EN, CLKMGR_PERPLLGRP_EN_SDMMCCLK_MASK); debug("%s: drvsel %d smplsel %d\n", __func__, priv->drvsel, priv->smplsel); #if !defined(CONFIG_XPL_BUILD) && defined(CONFIG_SPL_ATF) - int ret; - ret = socfpga_secure_reg_write32(SOCFPGA_SECURE_REG_SYSMGR_SOC64_SDMMC, sdmmc_mask); if (ret) { @@ -78,7 +92,7 @@ static int socfpga_dwmci_clksel(struct dwmci_host *host) #endif /* Enable SDMMC clock */ - setbits_le32(socfpga_get_clkmgr_addr() + CLKMGR_PERPLL_EN, + setbits_le32(clkmgr_base + CLKMGR_PERPLL_EN, CLKMGR_PERPLLGRP_EN_SDMMCCLK_MASK); return 0; |