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mmc: f_sdh30: Add support for F_SDH30_E51

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Add Socionext F_SDH30_E51 IP support. The features of this IP includes
CMD/DAT line delay and force card insertion mode for non-removable cards.
And the IP needs to add some quirks.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
This commit is contained in:
Kunihiko Hayashi 2022-09-09 16:23:33 +09:00 committed by Jaehoon Chung
parent 2b0dd4174f
commit 12fc8efe5a
2 changed files with 66 additions and 4 deletions
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4
drivers/mmc/Kconfig
View file

@ -576,12 +576,12 @@ config MMC_SDHCI_IPROC
If unsure, say N.
config MMC_SDHCI_F_SDH30
bool "SDHCI support for Fujitsu Semiconductor F_SDH30"
bool "SDHCI support for Fujitsu Semiconductor/Socionext 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.
Needed by some Fujitsu/Socionext SoC for MMC / SD / SDIO support.
If you have a controller with this interface, say Y or M here.
If unsure, say N.

66
drivers/mmc/f_sdh30.c
View file

@ -11,13 +11,48 @@
#include <malloc.h>
#include <sdhci.h>
#define F_SDH30_ESD_CONTROL 0x124
#define F_SDH30_CMD_DAT_DELAY BIT(9)
#define F_SDH30_TEST 0x158
#define F_SDH30_FORCE_CARD_INSERT BIT(6)
struct f_sdh30_data {
void (*init)(struct udevice *dev);
u32 quirks;
};
struct f_sdh30_plat {
struct mmc_config cfg;
struct mmc mmc;
bool enable_cmd_dat_delay;
const struct f_sdh30_data *data;
};
DECLARE_GLOBAL_DATA_PTR;
static void f_sdh30_e51_init(struct udevice *dev)
{
struct f_sdh30_plat *plat = dev_get_plat(dev);
struct sdhci_host *host = dev_get_priv(dev);
u32 val;
val = sdhci_readl(host, F_SDH30_ESD_CONTROL);
if (plat->enable_cmd_dat_delay)
val |= F_SDH30_CMD_DAT_DELAY;
else
val &= ~F_SDH30_CMD_DAT_DELAY;
sdhci_writel(host, val, F_SDH30_ESD_CONTROL);
val = sdhci_readl(host, F_SDH30_TEST);
if (plat->cfg.host_caps & MMC_CAP_NONREMOVABLE)
val |= F_SDH30_FORCE_CARD_INSERT;
else
val &= ~F_SDH30_FORCE_CARD_INSERT;
sdhci_writel(host, val, F_SDH30_TEST);
}
static int f_sdh30_sdhci_probe(struct udevice *dev)
{
struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
@ -25,6 +60,8 @@ static int f_sdh30_sdhci_probe(struct udevice *dev)
struct sdhci_host *host = dev_get_priv(dev);
int ret;
plat->data = (const struct f_sdh30_data *)dev_get_driver_data(dev);
ret = mmc_of_parse(dev, &plat->cfg);
if (ret)
return ret;
@ -33,6 +70,9 @@ static int f_sdh30_sdhci_probe(struct udevice *dev)
host->mmc->dev = dev;
host->mmc->priv = host;
if (plat->data && plat->data->quirks)
host->quirks = plat->data->quirks;
ret = sdhci_setup_cfg(&plat->cfg, host, 200000000, 400000);
if (ret)
return ret;
@ -41,18 +81,29 @@ static int f_sdh30_sdhci_probe(struct udevice *dev)
mmc_set_clock(host->mmc, host->mmc->cfg->f_min, MMC_CLK_ENABLE);
return sdhci_probe(dev);
ret = sdhci_probe(dev);
if (ret)
return ret;
if (plat->data && plat->data->init)
plat->data->init(dev);
return 0;
}
static int f_sdh30_of_to_plat(struct udevice *dev)
{
struct sdhci_host *host = dev_get_priv(dev);
struct f_sdh30_plat *plat = dev_get_plat(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);
plat->enable_cmd_dat_delay =
dev_read_bool(dev, "socionext,enable-cmd-dat-delay");
return 0;
}
@ -63,8 +114,19 @@ static int f_sdh30_bind(struct udevice *dev)
return sdhci_bind(dev, &plat->mmc, &plat->cfg);
}
static const struct f_sdh30_data f_sdh30_e51_data = {
.init = f_sdh30_e51_init,
.quirks = SDHCI_QUIRK_WAIT_SEND_CMD | SDHCI_QUIRK_SUPPORT_SINGLE,
};
static const struct udevice_id f_sdh30_mmc_ids[] = {
{ .compatible = "fujitsu,mb86s70-sdhci-3.0" },
{
.compatible = "fujitsu,mb86s70-sdhci-3.0",
},
{
.compatible = "socionext,f-sdh30-e51-mmc",
.data = (ulong)&f_sdh30_e51_data,
},
{ }
};