+// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2012 SAMSUNG Electronics
* Jaehoon Chung <jh80.chung@samsung.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
+#include <dm.h>
#include <malloc.h>
#include <sdhci.h>
#include <fdtdec.h>
-#include <libfdt.h>
+#include <linux/libfdt.h>
#include <asm/gpio.h>
#include <asm/arch/mmc.h>
#include <asm/arch/clk.h>
#include <errno.h>
#include <asm/arch/pinmux.h>
+#ifdef CONFIG_DM_MMC
+struct s5p_sdhci_plat {
+ struct mmc_config cfg;
+ struct mmc mmc;
+};
+
+DECLARE_GLOBAL_DATA_PTR;
+#endif
+
static char *S5P_NAME = "SAMSUNG SDHCI";
static void s5p_sdhci_set_control_reg(struct sdhci_host *host)
{
sdhci_writel(host, ctrl, SDHCI_CONTROL2);
}
+static void s5p_set_clock(struct sdhci_host *host, u32 div)
+{
+ /* ToDo : Use the Clock Framework */
+ set_mmc_clk(host->index, div);
+}
+
+static const struct sdhci_ops s5p_sdhci_ops = {
+ .set_clock = &s5p_set_clock,
+ .set_control_reg = &s5p_sdhci_set_control_reg,
+};
+
static int s5p_sdhci_core_init(struct sdhci_host *host)
{
host->name = S5P_NAME;
host->quirks = SDHCI_QUIRK_NO_HISPD_BIT | SDHCI_QUIRK_BROKEN_VOLTAGE |
SDHCI_QUIRK_32BIT_DMA_ADDR |
SDHCI_QUIRK_WAIT_SEND_CMD | SDHCI_QUIRK_USE_WIDE8;
+ host->max_clk = 52000000;
host->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195;
- host->version = sdhci_readw(host, SDHCI_HOST_VERSION);
-
- host->set_control_reg = &s5p_sdhci_set_control_reg;
- host->set_clock = set_mmc_clk;
+ host->ops = &s5p_sdhci_ops;
if (host->bus_width == 8)
host->host_caps |= MMC_MODE_8BIT;
- return add_sdhci(host, 52000000, 400000);
+#ifndef CONFIG_BLK
+ return add_sdhci(host, 0, 400000);
+#else
+ return 0;
+#endif
}
int s5p_sdhci_init(u32 regbase, int index, int bus_width)
struct sdhci_host *host = calloc(1, sizeof(struct sdhci_host));
if (!host) {
printf("sdhci__host allocation fail!\n");
- return 1;
+ return -ENOMEM;
}
host->ioaddr = (void *)regbase;
host->index = index;
return s5p_sdhci_core_init(host);
}
-#if CONFIG_IS_ENABLED(OF_CONTROL)
-struct sdhci_host sdhci_host[SDHCI_MAX_HOSTS];
-
static int do_sdhci_init(struct sdhci_host *host)
{
int dev_id, flag, ret;
/* Get device id */
dev_id = pinmux_decode_periph_id(blob, node);
- if (dev_id < PERIPH_ID_SDMMC0 && dev_id > PERIPH_ID_SDMMC3) {
+ if (dev_id < PERIPH_ID_SDMMC0 || dev_id > PERIPH_ID_SDMMC3) {
debug("MMC: Can't get device id\n");
- return -1;
+ return -EINVAL;
}
host->index = dev_id - PERIPH_ID_SDMMC0;
bus_width = fdtdec_get_int(blob, node, "samsung,bus-width", 0);
if (bus_width <= 0) {
debug("MMC: Can't get bus-width\n");
- return -1;
+ return -EINVAL;
}
host->bus_width = bus_width;
base = fdtdec_get_addr(blob, node, "reg");
if (!base) {
debug("MMC: Can't get base address\n");
- return -1;
+ return -EINVAL;
}
host->ioaddr = (void *)base;
- gpio_request_by_name_nodev(blob, node, "pwr-gpios", 0, &host->pwr_gpio,
- GPIOD_IS_OUT);
- gpio_request_by_name_nodev(blob, node, "cd-gpios", 0, &host->cd_gpio,
- GPIOD_IS_IN);
+ gpio_request_by_name_nodev(offset_to_ofnode(node), "pwr-gpios", 0,
+ &host->pwr_gpio, GPIOD_IS_OUT);
+ gpio_request_by_name_nodev(offset_to_ofnode(node), "cd-gpios", 0,
+ &host->cd_gpio, GPIOD_IS_IN);
return 0;
}
-static int process_nodes(const void *blob, int node_list[], int count)
+#ifdef CONFIG_DM_MMC
+static int s5p_sdhci_probe(struct udevice *dev)
{
- struct sdhci_host *host;
- int i, node, ret;
- int failed = 0;
-
- debug("%s: count = %d\n", __func__, count);
+ struct s5p_sdhci_plat *plat = dev_get_platdata(dev);
+ struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
+ struct sdhci_host *host = dev_get_priv(dev);
+ int ret;
- /* build sdhci_host[] for each controller */
- for (i = 0; i < count; i++) {
- node = node_list[i];
- if (node <= 0)
- continue;
+ ret = sdhci_get_config(gd->fdt_blob, dev_of_offset(dev), host);
+ if (ret)
+ return ret;
- host = &sdhci_host[i];
+ ret = do_sdhci_init(host);
+ if (ret)
+ return ret;
- ret = sdhci_get_config(blob, node, host);
- if (ret) {
- printf("%s: failed to decode dev %d (%d)\n", __func__, i, ret);
- failed++;
- continue;
- }
+ ret = sdhci_setup_cfg(&plat->cfg, host, 0, 400000);
+ if (ret)
+ return ret;
- ret = do_sdhci_init(host);
- if (ret && ret != -ENODEV) {
- printf("%s: failed to initialize dev %d (%d)\n", __func__, i, ret);
- failed++;
- }
- }
+ host->mmc = &plat->mmc;
+ host->mmc->priv = host;
+ host->mmc->dev = dev;
+ upriv->mmc = host->mmc;
- /* we only consider it an error when all nodes fail */
- return (failed == count ? -1 : 0);
+ return sdhci_probe(dev);
}
-int exynos_mmc_init(const void *blob)
+static int s5p_sdhci_bind(struct udevice *dev)
{
- int count;
- int node_list[SDHCI_MAX_HOSTS];
+ struct s5p_sdhci_plat *plat = dev_get_platdata(dev);
+ int ret;
- count = fdtdec_find_aliases_for_id(blob, "mmc",
- COMPAT_SAMSUNG_EXYNOS_MMC, node_list,
- SDHCI_MAX_HOSTS);
+ ret = sdhci_bind(dev, &plat->mmc, &plat->cfg);
+ if (ret)
+ return ret;
- return process_nodes(blob, node_list, count);
+ return 0;
}
-#endif
+
+static const struct udevice_id s5p_sdhci_ids[] = {
+ { .compatible = "samsung,exynos4412-sdhci"},
+ { }
+};
+
+U_BOOT_DRIVER(s5p_sdhci_drv) = {
+ .name = "s5p_sdhci",
+ .id = UCLASS_MMC,
+ .of_match = s5p_sdhci_ids,
+ .bind = s5p_sdhci_bind,
+ .ops = &sdhci_ops,
+ .probe = s5p_sdhci_probe,
+ .priv_auto_alloc_size = sizeof(struct sdhci_host),
+ .platdata_auto_alloc_size = sizeof(struct s5p_sdhci_plat),
+};
+#endif /* CONFIG_DM_MMC */
projects / oweals / u-boot.git / blobdiff