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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (C) 2016 Socionext Inc.
- * Author: Masahiro Yamada <yamada.masahiro@socionext.com>
- */
- #include <common.h>
- #include <clk.h>
- #include <fdtdec.h>
- #include <malloc.h>
- #include <mmc.h>
- #include <dm.h>
- #include <dm/device_compat.h>
- #include <linux/compat.h>
- #include <linux/dma-direction.h>
- #include <linux/io.h>
- #include <linux/sizes.h>
- #include <power/regulator.h>
- #include <asm/unaligned.h>
- #include "tmio-common.h"
- static const struct dm_mmc_ops uniphier_sd_ops = {
- .send_cmd = tmio_sd_send_cmd,
- .set_ios = tmio_sd_set_ios,
- .get_cd = tmio_sd_get_cd,
- };
- static const struct udevice_id uniphier_sd_match[] = {
- { .compatible = "socionext,uniphier-sd-v2.91" },
- { .compatible = "socionext,uniphier-sd-v3.1" },
- { .compatible = "socionext,uniphier-sd-v3.1.1" },
- { /* sentinel */ }
- };
- static ulong uniphier_sd_clk_get_rate(struct tmio_sd_priv *priv)
- {
- #if CONFIG_IS_ENABLED(CLK)
- return clk_get_rate(&priv->clk);
- #elif CONFIG_SPL_BUILD
- return 100000000;
- #else
- return 0;
- #endif
- }
- static int uniphier_sd_probe(struct udevice *dev)
- {
- struct tmio_sd_priv *priv = dev_get_priv(dev);
- priv->clk_get_rate = uniphier_sd_clk_get_rate;
- priv->read_poll_flag = TMIO_SD_DMA_INFO1_END_RD2;
- #ifndef CONFIG_SPL_BUILD
- int ret;
- ret = clk_get_by_index(dev, 0, &priv->clk);
- if (ret < 0) {
- dev_err(dev, "failed to get host clock\n");
- return ret;
- }
- /* set to max rate */
- ret = clk_set_rate(&priv->clk, ULONG_MAX);
- if (ret < 0) {
- dev_err(dev, "failed to set rate for host clock\n");
- clk_free(&priv->clk);
- return ret;
- }
- ret = clk_enable(&priv->clk);
- if (ret) {
- dev_err(dev, "failed to enable host clock\n");
- return ret;
- }
- #endif
- return tmio_sd_probe(dev, 0);
- }
- U_BOOT_DRIVER(uniphier_mmc) = {
- .name = "uniphier-mmc",
- .id = UCLASS_MMC,
- .of_match = uniphier_sd_match,
- .bind = tmio_sd_bind,
- .probe = uniphier_sd_probe,
- .priv_auto_alloc_size = sizeof(struct tmio_sd_priv),
- .platdata_auto_alloc_size = sizeof(struct tmio_sd_plat),
- .ops = &uniphier_sd_ops,
- };
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