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mmc: synquacer: Add SynQuacer F_SDH30 SDHCI driver

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Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
This commit is contained in:
Jassi Brar 2021-06-04 18:44:16 +09:00 • committed by Tom Rini
parent 3296d52bb5
commit dadd43c143
3 changed files with 92 additions and 0 deletions
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10
drivers/mmc/Kconfig
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@ -561,6 +561,16 @@ config MMC_SDHCI_IPROC
If unsure, say N.
config MMC_SDHCI_F_SDH30
bool "SDHCI support for Fujitsu Semiconductor F_SDH30"
depends on BLK && DM_MMC
depends on MMC_SDHCI
help
This selects the Secure Digital Host Controller Interface (SDHCI)
Needed by some Fujitsu SoC for MMC / SD / SDIO support.
If you have a controller with this interface, say Y or M here.
If unsure, say N.
config MMC_SDHCI_KONA
bool "SDHCI support on Broadcom KONA platform"
depends on MMC_SDHCI

1
drivers/mmc/Makefile
View file

@ -76,3 +76,4 @@ obj-$(CONFIG_MMC_UNIPHIER) += tmio-common.o uniphier-sd.o
obj-$(CONFIG_RENESAS_SDHI) += tmio-common.o renesas-sdhi.o
obj-$(CONFIG_MMC_BCM2835) += bcm2835_sdhost.o
obj-$(CONFIG_MMC_MTK) += mtk-sd.o
obj-$(CONFIG_MMC_SDHCI_F_SDH30) += f_sdh30.o

81
drivers/mmc/f_sdh30.c Normal file
View file

@ -0,0 +1,81 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Socionext F_SDH30 eMMC driver
* Copyright 2021 Linaro Ltd.
* Copyright 2021 Socionext, Inc.
*/
#include <common.h>
#include <clk.h>
#include <dm.h>
#include <malloc.h>
#include <sdhci.h>
struct f_sdh30_plat {
struct mmc_config cfg;
struct mmc mmc;
};
DECLARE_GLOBAL_DATA_PTR;
static int f_sdh30_sdhci_probe(struct udevice *dev)
{
struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
struct f_sdh30_plat *plat = dev_get_plat(dev);
struct sdhci_host *host = dev_get_priv(dev);
int ret;
ret = mmc_of_parse(dev, &plat->cfg);
if (ret)
return ret;
host->mmc = &plat->mmc;
host->mmc->dev = dev;
host->mmc->priv = host;
ret = sdhci_setup_cfg(&plat->cfg, host, 200000000, 400000);
if (ret)
return ret;
upriv->mmc = host->mmc;
mmc_set_clock(host->mmc, host->mmc->cfg->f_min, MMC_CLK_ENABLE);
return sdhci_probe(dev);
}
static int f_sdh30_of_to_plat(struct udevice *dev)
{
struct sdhci_host *host = dev_get_priv(dev);
host->name = strdup(dev->name);
host->ioaddr = dev_read_addr_ptr(dev);
host->bus_width = dev_read_u32_default(dev, "bus-width", 4);
host->index = dev_read_u32_default(dev, "index", 0);
return 0;
}
static int f_sdh30_bind(struct udevice *dev)
{
struct f_sdh30_plat *plat = dev_get_plat(dev);
return sdhci_bind(dev, &plat->mmc, &plat->cfg);
}
static const struct udevice_id f_sdh30_mmc_ids[] = {
{ .compatible = "fujitsu,mb86s70-sdhci-3.0" },
{ }
};
U_BOOT_DRIVER(f_sdh30_drv) = {
.name = "f_sdh30_sdhci",
.id = UCLASS_MMC,
.of_match = f_sdh30_mmc_ids,
.of_to_plat = f_sdh30_of_to_plat,
.ops = &sdhci_ops,
.bind = f_sdh30_bind,
.probe = f_sdh30_sdhci_probe,
.priv_auto = sizeof(struct sdhci_host),
.plat_auto = sizeof(struct f_sdh30_plat),
};