[U-Boot] [PATCH 2/4] nds32: ftsdc010: Support ftsdc010 DM.
Andes
uboot at andestech.com
Thu Jun 1 07:46:13 UTC 2017
From: rick <rick at andestech.com>
ftsdc010 support device tree flow.
Signed-off-by: rick <rick at andestech.com>
---
drivers/mmc/ftsdc010_mci.c | 139 ++++++++++++++++++++++++++++++++++----------
drivers/mmc/ftsdc010_mci.h | 53 +++++++++++++++++
2 files changed, 161 insertions(+), 31 deletions(-)
create mode 100644 drivers/mmc/ftsdc010_mci.h
diff --git a/drivers/mmc/ftsdc010_mci.c b/drivers/mmc/ftsdc010_mci.c
index 652a718..87855b6 100644
--- a/drivers/mmc/ftsdc010_mci.c
+++ b/drivers/mmc/ftsdc010_mci.c
@@ -12,24 +12,15 @@
#include <part.h>
#include <mmc.h>
-#include <asm/io.h>
+#include <linux/io.h>
#include <linux/errno.h>
#include <asm/byteorder.h>
#include <faraday/ftsdc010.h>
+#include "ftsdc010_mci.h"
#define CFG_CMD_TIMEOUT (CONFIG_SYS_HZ >> 4) /* 250 ms */
#define CFG_RST_TIMEOUT CONFIG_SYS_HZ /* 1 sec reset timeout */
-struct ftsdc010_chip {
- void __iomem *regs;
- uint32_t wprot; /* write protected (locked) */
- uint32_t rate; /* actual SD clock in Hz */
- uint32_t sclk; /* FTSDC010 source clock in Hz */
- uint32_t fifo; /* fifo depth in bytes */
- uint32_t acmd;
- struct mmc_config cfg; /* mmc configuration */
-};
-
static inline int ftsdc010_send_cmd(struct mmc *mmc, struct mmc_cmd *mmc_cmd)
{
struct ftsdc010_chip *chip = mmc->priv;
@@ -127,9 +118,8 @@ static void ftsdc010_clkset(struct mmc *mmc, uint32_t rate)
static int ftsdc010_wait(struct ftsdc010_mmc __iomem *regs, uint32_t mask)
{
int ret = -ETIMEDOUT;
- uint32_t st, ts;
-
- for (ts = get_timer(0); get_timer(ts) < CFG_CMD_TIMEOUT; ) {
+ uint32_t st, timeout = 10000000;
+ while (timeout--) {
st = readl(®s->status);
if (!(st & mask))
continue;
@@ -147,10 +137,16 @@ static int ftsdc010_wait(struct ftsdc010_mmc __iomem *regs, uint32_t mask)
/*
* u-boot mmc api
*/
-
+#ifdef CONFIG_DM_MMC_OPS
+static int ftsdc010_request(struct udevice *dev, struct mmc_cmd *cmd,
+ struct mmc_data *data)
+{
+ struct mmc *mmc = mmc_get_mmc_dev(dev);
+#else
static int ftsdc010_request(struct mmc *mmc, struct mmc_cmd *cmd,
struct mmc_data *data)
{
+#endif
int ret = -EOPNOTSUPP;
uint32_t len = 0;
struct ftsdc010_chip *chip = mmc->priv;
@@ -251,8 +247,14 @@ static int ftsdc010_request(struct mmc *mmc, struct mmc_cmd *cmd,
return ret;
}
+#ifdef CONFIG_DM_MMC_OPS
+static int ftsdc010_set_ios(struct udevice *dev)
+{
+ struct mmc *mmc = mmc_get_mmc_dev(dev);
+#else
static int ftsdc010_set_ios(struct mmc *mmc)
{
+#endif
struct ftsdc010_chip *chip = mmc->priv;
struct ftsdc010_mmc __iomem *regs = chip->regs;
@@ -274,20 +276,43 @@ static int ftsdc010_set_ios(struct mmc *mmc)
return 0;
}
-static int ftsdc010_init(struct mmc *mmc)
+#ifdef CONFIG_DM_MMC_OPS
+static int ftsdc010_get_cd(struct udevice *dev)
{
+ struct mmc *mmc = mmc_get_mmc_dev(dev);
+#else
+static int ftsdc010_get_cd(struct mmc *mmc)
+{
+#endif
struct ftsdc010_chip *chip = mmc->priv;
struct ftsdc010_mmc __iomem *regs = chip->regs;
- uint32_t ts;
-
- if (readl(®s->status) & FTSDC010_STATUS_CARD_DETECT)
- return -ENOMEDIUM;
+ return !(readl(®s->status) & FTSDC010_STATUS_CARD_DETECT);
+}
+#ifdef CONFIG_DM_MMC_OPS
+static int ftsdc010_get_wp(struct udevice *dev)
+{
+ struct mmc *mmc = mmc_get_mmc_dev(dev);
+#else
+static int ftsdc010_get_wp(struct mmc *mmc)
+{
+#endif
+ struct ftsdc010_chip *chip = mmc->priv;
+ struct ftsdc010_mmc __iomem *regs = chip->regs;
if (readl(®s->status) & FTSDC010_STATUS_WRITE_PROT) {
printf("ftsdc010: write protected\n");
chip->wprot = 1;
}
+ return 0;
+}
+
+static int ftsdc010_init(struct mmc *mmc)
+{
+ struct ftsdc010_chip *chip = mmc->priv;
+ struct ftsdc010_mmc __iomem *regs = chip->regs;
+ uint32_t ts;
+
chip->fifo = (readl(®s->feature) & 0xff) << 2;
/* 1. chip reset */
@@ -311,11 +336,70 @@ static int ftsdc010_init(struct mmc *mmc)
return 0;
}
+#ifdef CONFIG_DM_MMC_OPS
+int ftsdc010_probe(struct udevice *dev)
+{
+ struct mmc *mmc = mmc_get_mmc_dev(dev);
+ return ftsdc010_init(mmc);
+}
+
+const struct dm_mmc_ops dm_ftsdc010_ops = {
+ .send_cmd = ftsdc010_request,
+ .set_ios = ftsdc010_set_ios,
+ .get_cd = ftsdc010_get_cd,
+ .get_wp = ftsdc010_get_wp,
+};
+
+#else
static const struct mmc_ops ftsdc010_ops = {
.send_cmd = ftsdc010_request,
.set_ios = ftsdc010_set_ios,
+ .getcd = ftsdc010_get_cd,
+ .getwp = ftsdc010_get_wp,
.init = ftsdc010_init,
};
+#endif
+
+void ftsdc_setup_cfg(struct mmc_config *cfg, const char *name, int buswidth,
+ uint caps, u32 max_clk, u32 min_clk)
+{
+ cfg->name = name;
+ cfg->f_min = min_clk;
+ cfg->f_max = max_clk;
+ cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195;
+ cfg->host_caps = caps;
+ if (buswidth == 8) {
+ cfg->host_caps |= MMC_MODE_8BIT;
+ cfg->host_caps &= ~MMC_MODE_4BIT;
+ } else {
+ cfg->host_caps |= MMC_MODE_4BIT;
+ cfg->host_caps &= ~MMC_MODE_8BIT;
+ }
+ cfg->host_caps |= MMC_MODE_HS | MMC_MODE_HS_52MHz;
+ cfg->part_type = PART_TYPE_DOS;
+ cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
+}
+
+void set_bus_width(struct ftsdc010_mmc __iomem *regs, struct mmc_config *cfg)
+{
+ switch (readl(®s->bwr) & FTSDC010_BWR_CAPS_MASK) {
+ case FTSDC010_BWR_CAPS_4BIT:
+ cfg->host_caps |= MMC_MODE_4BIT;
+ break;
+ case FTSDC010_BWR_CAPS_8BIT:
+ cfg->host_caps |= MMC_MODE_4BIT | MMC_MODE_8BIT;
+ break;
+ default:
+ break;
+ }
+}
+
+#ifdef CONFIG_BLK
+int ftsdc010_bind(struct udevice *dev, struct mmc *mmc, struct mmc_config *cfg)
+{
+ return mmc_bind(dev, mmc, cfg);
+}
+#else
int ftsdc010_mmc_init(int devid)
{
@@ -345,19 +429,11 @@ int ftsdc010_mmc_init(int devid)
#endif
chip->cfg.name = "ftsdc010";
+#ifndef CONFIG_DM_MMC_OPS
chip->cfg.ops = &ftsdc010_ops;
+#endif
chip->cfg.host_caps = MMC_MODE_HS | MMC_MODE_HS_52MHz;
- switch (readl(®s->bwr) & FTSDC010_BWR_CAPS_MASK) {
- case FTSDC010_BWR_CAPS_4BIT:
- chip->cfg.host_caps |= MMC_MODE_4BIT;
- break;
- case FTSDC010_BWR_CAPS_8BIT:
- chip->cfg.host_caps |= MMC_MODE_4BIT | MMC_MODE_8BIT;
- break;
- default:
- break;
- }
-
+ set_bus_width(regs , &chip->cfg);
chip->cfg.voltages = MMC_VDD_32_33 | MMC_VDD_33_34;
chip->cfg.f_max = chip->sclk / 2;
chip->cfg.f_min = chip->sclk / 0x100;
@@ -373,3 +449,4 @@ int ftsdc010_mmc_init(int devid)
return 0;
}
+#endif
diff --git a/drivers/mmc/ftsdc010_mci.h b/drivers/mmc/ftsdc010_mci.h
new file mode 100644
index 0000000..63e85ee
--- /dev/null
+++ b/drivers/mmc/ftsdc010_mci.h
@@ -0,0 +1,53 @@
+/*
+ * Faraday FTSDC010 Secure Digital Memory Card Host Controller
+ *
+ * Copyright (C) 2011 Andes Technology Corporation
+ * Macpaul Lin, Andes Technology Corporation <macpaul at andestech.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+#include <mmc.h>
+
+#ifndef __FTSDC010_MCI_H
+#define __FTSDC010_MCI_H
+
+struct ftsdc010_chip {
+ void __iomem *regs;
+ uint32_t wprot; /* write protected (locked) */
+ uint32_t rate; /* actual SD clock in Hz */
+ uint32_t sclk; /* FTSDC010 source clock in Hz */
+ uint32_t fifo; /* fifo depth in bytes */
+ uint32_t acmd;
+ struct mmc_config cfg; /* mmc configuration */
+ const char *name;
+ void *ioaddr;
+ unsigned int caps;
+ unsigned int version;
+ unsigned int clock;
+ unsigned int bus_hz;
+ unsigned int div;
+ int dev_index;
+ int dev_id;
+ int buswidth;
+ u32 fifoth_val;
+ struct mmc *mmc;
+ void *priv;
+ bool fifo_mode;
+};
+
+
+#ifdef CONFIG_DM_MMC_OPS
+/* Export the operations to drivers */
+int ftsdc010_probe(struct udevice *dev);
+extern const struct dm_mmc_ops dm_ftsdc010_ops;
+#endif
+void ftsdc_setup_cfg(struct mmc_config *cfg, const char *name, int buswidth,
+ uint caps, u32 max_clk, u32 min_clk);
+void set_bus_width(struct ftsdc010_mmc __iomem *regs, struct mmc_config *cfg);
+
+#ifdef CONFIG_BLK
+int ftsdc010_bind(struct udevice *dev, struct mmc *mmc, struct mmc_config *cfg);
+#endif
+
+
+#endif /* __FTSDC010_MCI_H */
--
1.7.9.5
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