diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/mmc/socfpga_dw_mmc.c | 29 |
1 files changed, 21 insertions, 8 deletions
diff --git a/drivers/mmc/socfpga_dw_mmc.c b/drivers/mmc/socfpga_dw_mmc.c index 8076761..2bd0ebd 100644 --- a/drivers/mmc/socfpga_dw_mmc.c +++ b/drivers/mmc/socfpga_dw_mmc.c @@ -19,21 +19,23 @@ static const struct socfpga_clock_manager *clock_manager_base = static const struct socfpga_system_manager *system_manager_base = (void *)SOCFPGA_SYSMGR_ADDRESS; -static void socfpga_dwmci_clksel(struct dwmci_host *host) -{ +/* socfpga implmentation specific drver private data */ +struct dwmci_socfpga_priv_data { unsigned int drvsel; unsigned int smplsel; +}; + +static void socfpga_dwmci_clksel(struct dwmci_host *host) +{ + struct dwmci_socfpga_priv_data *priv = host->priv; /* Disable SDMMC clock. */ clrbits_le32(&clock_manager_base->per_pll.en, CLKMGR_PERPLLGRP_EN_SDMMCCLK_MASK); - /* Configures drv_sel and smpl_sel */ - drvsel = CONFIG_SOCFPGA_DWMMC_DRVSEL; - smplsel = CONFIG_SOCFPGA_DWMMC_SMPSEL; - - debug("%s: drvsel %d smplsel %d\n", __func__, drvsel, smplsel); - writel(SYSMGR_SDMMC_CTRL_SET(smplsel, drvsel), + debug("%s: drvsel %d smplsel %d\n", __func__, + priv->drvsel, priv->smplsel); + writel(SYSMGR_SDMMC_CTRL_SET(priv->smplsel, priv->drvsel), &system_manager_base->sdmmcgrp_ctrl); debug("%s: SYSMGR_SDMMCGRP_CTRL_REG = 0x%x\n", __func__, @@ -50,6 +52,7 @@ static int socfpga_dwmci_of_probe(const void *blob, int node, const int idx) const unsigned long clk = cm_get_mmc_controller_clk_hz(); struct dwmci_host *host; + struct dwmci_socfpga_priv_data *priv; fdt_addr_t reg_base; int bus_width, fifo_depth; @@ -83,6 +86,13 @@ static int socfpga_dwmci_of_probe(const void *blob, int node, const int idx) if (!host) return -ENOMEM; + /* Allocate the priv */ + priv = calloc(1, sizeof(*priv)); + if (!priv) { + free(host); + return -ENOMEM; + } + host->name = "SOCFPGA DWMMC"; host->ioaddr = (void *)reg_base; host->buswidth = bus_width; @@ -92,6 +102,9 @@ static int socfpga_dwmci_of_probe(const void *blob, int node, const int idx) host->bus_hz = clk; host->fifoth_val = MSIZE(0x2) | RX_WMARK(fifo_depth / 2 - 1) | TX_WMARK(fifo_depth / 2); + priv->drvsel = fdtdec_get_uint(blob, node, "drvsel", 3); + priv->smplsel = fdtdec_get_uint(blob, node, "smplsel", 0); + host->priv = priv; return add_dwmci(host, host->bus_hz, 400000); } |