static int do_sdhci_init(struct sdhci_host *host)
{
- int dev_id, flag;
- int err = 0;
+ int dev_id, flag, ret;
flag = host->bus_width == 8 ? PINMUX_FLAG_8BIT_MODE : PINMUX_FLAG_NONE;
dev_id = host->index + PERIPH_ID_SDMMC0;
+ ret = exynos_pinmux_config(dev_id, flag);
+ if (ret) {
+ printf("external SD not configured\n");
+ return ret;
+ }
+
if (dm_gpio_is_valid(&host->pwr_gpio)) {
dm_gpio_set_value(&host->pwr_gpio, 1);
- err = exynos_pinmux_config(dev_id, flag);
- if (err) {
+ ret = exynos_pinmux_config(dev_id, flag);
+ if (ret) {
debug("MMC not configured\n");
- return err;
+ return ret;
}
}
if (dm_gpio_is_valid(&host->cd_gpio)) {
- if (dm_gpio_get_value(&host->cd_gpio))
+ ret = dm_gpio_get_value(&host->cd_gpio);
+ if (ret) {
+ debug("no SD card detected (%d)\n", ret);
return -ENODEV;
-
- err = exynos_pinmux_config(dev_id, flag);
- if (err) {
- printf("external SD not configured\n");
- return err;
}
}
static int process_nodes(const void *blob, int node_list[], int count)
{
struct sdhci_host *host;
- int i, node;
+ int i, node, ret;
+ int failed = 0;
debug("%s: count = %d\n", __func__, count);
host = &sdhci_host[i];
- if (sdhci_get_config(blob, node, host)) {
- printf("%s: failed to decode dev %d\n", __func__, i);
- return -1;
+ ret = sdhci_get_config(blob, node, host);
+ if (ret) {
+ printf("%s: failed to decode dev %d (%d)\n", __func__, i, ret);
+ failed++;
+ continue;
+ }
+
+ ret = do_sdhci_init(host);
+ if (ret && ret != -ENODEV) {
+ printf("%s: failed to initialize dev %d (%d)\n", __func__, i, ret);
+ failed++;
}
- do_sdhci_init(host);
}
- return 0;
+
+ /* we only consider it an error when all nodes fail */
+ return (failed == count ? -1 : 0);
}
int exynos_mmc_init(const void *blob)
COMPAT_SAMSUNG_EXYNOS_MMC, node_list,
SDHCI_MAX_HOSTS);
- process_nodes(blob, node_list, count);
-
- return 0;
+ return process_nodes(blob, node_list, count);
}
#endif