[PATCH v3 07/14] mmc: synquacer: Add SynQuacer F_SDH30 SDHCI driver

Masami Hiramatsu
2021-05-10T06:32:08Z

From: Jassi Brar <jaswinder.singh@linaro.org>

Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
---
Changes in v3:
- Rename config name to MMC_SDHCI_F_SDH30.
- Remove unneeded wait in drivers/mmc/sdhci.c.
- Rename probe function to f_sdh30_sdhci_probe.
---
drivers/mmc/Kconfig | 10 ++++++
drivers/mmc/Makefile | 1 +
drivers/mmc/f_sdh30.c | 81 +++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 92 insertions(+)
create mode 100644 drivers/mmc/f_sdh30.c

diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig
index f4ad1db45d..026b6f7d24 100644
--- a/drivers/mmc/Kconfig
+++ b/drivers/mmc/Kconfig
@@ -559,6 +559,16 @@ 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
diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile
index 89d6af3db3..f5fd59093e 100644
--- a/drivers/mmc/Makefile
+++ b/drivers/mmc/Makefile
@@ -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
diff --git a/drivers/mmc/f_sdh30.c b/drivers/mmc/f_sdh30.c
new file mode 100644
index 0000000000..3a85d9e348
--- /dev/null
+++ b/drivers/mmc/f_sdh30.c
@@ -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),
+};