* Copyright 2011, Marvell Semiconductor Inc.
* Lei Wen <leiwen@marvell.com>
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier: GPL-2.0+
*
* Back ported to the 8xx platform (from the 8260 platform) by
* Murray.Jensen@cmst.csiro.au, 27-Jan-01.
#include <asm/io.h>
#include <mmc.h>
+#include <asm/gpio.h>
/*
* Controller registers
#define SDHCI_DIV_MASK 0xFF
#define SDHCI_DIV_MASK_LEN 8
#define SDHCI_DIV_HI_MASK 0x300
+#define SDHCI_PROG_CLOCK_MODE 0x0020
#define SDHCI_CLOCK_CARD_EN 0x0004
#define SDHCI_CLOCK_INT_STABLE 0x0002
#define SDHCI_CLOCK_INT_EN 0x0001
#define SDHCI_CAN_64BIT 0x10000000
#define SDHCI_CAPABILITIES_1 0x44
+#define SDHCI_CLOCK_MUL_MASK 0x00FF0000
+#define SDHCI_CLOCK_MUL_SHIFT 16
#define SDHCI_MAX_CURRENT 0x48
#define SDHCI_SPEC_200 1
#define SDHCI_SPEC_300 2
+#define SDHCI_GET_VERSION(x) (x->version & SDHCI_SPEC_VER_MASK)
+
/*
* End of controller registers.
*/
#define SDHCI_QUIRK_BROKEN_R1B (1 << 2)
#define SDHCI_QUIRK_NO_HISPD_BIT (1 << 3)
#define SDHCI_QUIRK_BROKEN_VOLTAGE (1 << 4)
-#define SDHCI_QUIRK_NO_CD (1 << 5)
+#define SDHCI_QUIRK_WAIT_SEND_CMD (1 << 6)
+#define SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER (1 << 7)
+#define SDHCI_QUIRK_USE_WIDE8 (1 << 8)
/* to make gcc happy */
struct sdhci_host;
void (*write_w)(struct sdhci_host *host, u16 val, int reg);
void (*write_b)(struct sdhci_host *host, u8 val, int reg);
#endif
+ int (*get_cd)(struct sdhci_host *host);
};
struct sdhci_host {
- char *name;
+ const char *name;
void *ioaddr;
unsigned int quirks;
unsigned int host_caps;
unsigned int version;
+ unsigned int clk_mul; /* Clock Multiplier value */
unsigned int clock;
struct mmc *mmc;
const struct sdhci_ops *ops;
int index;
+ int bus_width;
+ struct gpio_desc pwr_gpio; /* Power GPIO */
+ struct gpio_desc cd_gpio; /* Card Detect GPIO */
+
void (*set_control_reg)(struct sdhci_host *host);
void (*set_clock)(int dev_index, unsigned int div);
uint voltages;
+
+ struct mmc_config cfg;
};
#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
}
#endif
+#ifdef CONFIG_BLK
+/**
+ * sdhci_setup_cfg() - Set up the configuration for DWMMC
+ *
+ * This is used to set up an SDHCI device when you are using CONFIG_BLK.
+ *
+ * This should be called from your MMC driver's probe() method once you have
+ * the information required.
+ *
+ * Generally your driver will have a platform data structure which holds both
+ * the configuration (struct mmc_config) and the MMC device info (struct mmc).
+ * For example:
+ *
+ * struct msm_sdhc_plat {
+ * struct mmc_config cfg;
+ * struct mmc mmc;
+ * };
+ *
+ * ...
+ *
+ * Inside U_BOOT_DRIVER():
+ * .platdata_auto_alloc_size = sizeof(struct msm_sdhc_plat),
+ *
+ * To access platform data:
+ * struct msm_sdhc_plat *plat = dev_get_platdata(dev);
+ *
+ * See msm_sdhci.c for an example.
+ *
+ * @cfg: Configuration structure to fill in (generally &plat->mmc)
+ * @host: SDHCI host structure
+ * @max_clk: Maximum supported clock speed in HZ (0 for default)
+ * @min_clk: Minimum supported clock speed in HZ (0 for default)
+ */
+int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host,
+ u32 max_clk, u32 min_clk);
+
+/**
+ * sdhci_bind() - Set up a new MMC block device
+ *
+ * This is used to set up an SDHCI block device when you are using CONFIG_BLK.
+ * It should be called from your driver's bind() method.
+ *
+ * See msm_sdhci.c for an example.
+ *
+ * @dev: Device to set up
+ * @mmc: Pointer to mmc structure (normally &plat->mmc)
+ * @cfg: Empty configuration structure (generally &plat->cfg). This is
+ * normally all zeroes at this point. The only purpose of passing
+ * this in is to set mmc->cfg to it.
+ * @return 0 if OK, -ve if the block device could not be created
+ */
+int sdhci_bind(struct udevice *dev, struct mmc *mmc, struct mmc_config *cfg);
+#else
+
+/**
+ * add_sdhci() - Add a new SDHCI interface
+ *
+ * This is used when you are not using CONFIG_BLK. Convert your driver over!
+ *
+ * @host: SDHCI host structure
+ * @max_clk: Maximum supported clock speed in HZ (0 for default)
+ * @min_clk: Minimum supported clock speed in HZ (0 for default)
+ * @return 0 if OK, -ve on error
+ */
int add_sdhci(struct sdhci_host *host, u32 max_clk, u32 min_clk);
+#endif /* !CONFIG_BLK */
+
+#ifdef CONFIG_DM_MMC_OPS
+/* Export the operations to drivers */
+int sdhci_probe(struct udevice *dev);
+extern const struct dm_mmc_ops sdhci_ops;
+#else
+#endif
+
#endif /* __SDHCI_HW_H */
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