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path: root/drivers/mmc/socfpga_dw_mmc.c
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Diffstat (limited to 'drivers/mmc/socfpga_dw_mmc.c')
-rw-r--r--drivers/mmc/socfpga_dw_mmc.c29
1 files changed, 21 insertions, 8 deletions
diff --git a/drivers/mmc/socfpga_dw_mmc.c b/drivers/mmc/socfpga_dw_mmc.c
index 8076761e06..2bd0ebd96c 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);
}
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