mmc: exynos_dw_mmc: Don't call pinmux functions on ARM64 chips

Pinmux configuration on ARM64 platforms must be performed during startup
in pinctrl driver using info from device tree. exynos_pinmux_config()
and pinmux_decode_periph_id() are only available on ARM32 platforms, so
don't call those functions on ARM64 platforms. Instead of the latter
function, use "non-removable" property from device tree to derive the
dev_index value.

This fixes next linking errors on ARM64 platforms:

    ld: drivers/mmc/exynos_dw_mmc.o:
      in function `exynos_dwmci_get_config':
      undefined reference to `pinmux_decode_periph_id'
    ld: drivers/mmc/exynos_dw_mmc.o:
      in function `do_dwmci_init':
      undefined reference to `exynos_pinmux_config'

Fixes: a082a2dde061 ("EXYNOS5: DWMMC: Added FDT support for DWMMC")
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

diff --git a/drivers/mmc/exynos_dw_mmc.c b/drivers/mmc/exynos_dw_mmc.c
index aa542c1..ed27523 100644 (file)
--- a/drivers/mmc/exynos_dw_mmc.c
+++ b/drivers/mmc/exynos_dw_mmc.c
@@ -144,6 +144,7 @@ static int exynos_dwmci_core_init(struct dwmci_host *host)
 
 static int do_dwmci_init(struct dwmci_host *host)
 {
+#ifdef CONFIG_CPU_V7A
        int flag, err;
 
        flag = host->buswidth == 8 ? PINMUX_FLAG_8BIT_MODE : PINMUX_FLAG_NONE;
@@ -152,6 +153,7 @@ static int do_dwmci_init(struct dwmci_host *host)
                printf("DWMMC%d not configure\n", host->dev_index);
                return err;
        }
+#endif
 
        return exynos_dwmci_core_init(host);
 }
@@ -163,6 +165,7 @@ static int exynos_dwmci_get_config(struct udevice *dev, const void *blob,
        int err = 0;
        u32 timing[3];
 
+#ifdef CONFIG_CPU_V7A
        /* Extract device id for each mmc channel */
        host->dev_id = pinmux_decode_periph_id(blob, node);
 
@@ -174,6 +177,12 @@ static int exynos_dwmci_get_config(struct udevice *dev, const void *blob,
                printf("DWMMC%d: Can't get the dev index\n", host->dev_index);
                return -EINVAL;
        }
+#else
+       if (dev_read_bool(dev, "non-removable"))
+               host->dev_index = 0; /* eMMC */
+       else
+               host->dev_index = 2; /* SD card */
+#endif
 
        /* Get the bus width from the device node (Default is 4bit buswidth) */
        host->buswidth = fdtdec_get_int(blob, node, "samsung,bus-width", 4);