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 --- drivers/mmc/Kconfig | 4 +-- drivers/mmc/f_sdh30.c | 66 +++++++++++++++++++++++++++++++++++++++++-- 2 files changed, 66 insertions(+), 4 deletions(-)
diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig index 0dcec8adcee8..c30f20cba5f2 100644 --- a/drivers/mmc/Kconfig +++ b/drivers/mmc/Kconfig @@ -577,12 +577,12 @@ 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.
diff --git a/drivers/mmc/f_sdh30.c b/drivers/mmc/f_sdh30.c index 3a85d9e348ab..3d587a464d50 100644 --- a/drivers/mmc/f_sdh30.c +++ b/drivers/mmc/f_sdh30.c @@ -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, + }, { } };