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path: root/drivers/mmc/sh_sdhi.c
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Diffstat (limited to 'drivers/mmc/sh_sdhi.c')
-rw-r--r--drivers/mmc/sh_sdhi.c95
1 files changed, 78 insertions, 17 deletions
diff --git a/drivers/mmc/sh_sdhi.c b/drivers/mmc/sh_sdhi.c
index 25224e2e1d..d181b63905 100644
--- a/drivers/mmc/sh_sdhi.c
+++ b/drivers/mmc/sh_sdhi.c
@@ -3,7 +3,7 @@
*
* SD/MMC driver for Renesas rmobile ARM SoCs.
*
- * Copyright (C) 2011,2013-2014 Renesas Electronics Corporation
+ * Copyright (C) 2011,2013-2017 Renesas Electronics Corporation
* Copyright (C) 2014 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
* Copyright (C) 2008-2009 Renesas Solutions Corp.
*
@@ -29,6 +29,17 @@ struct sh_sdhi_host {
unsigned char sd_error;
unsigned char detect_waiting;
};
+
+static inline void sh_sdhi_writeq(struct sh_sdhi_host *host, int reg, u64 val)
+{
+ writeq(val, host->addr + (reg << host->bus_shift));
+}
+
+static inline u64 sh_sdhi_readq(struct sh_sdhi_host *host, int reg)
+{
+ return readq(host->addr + (reg << host->bus_shift));
+}
+
static inline void sh_sdhi_writew(struct sh_sdhi_host *host, int reg, u16 val)
{
writew(val, host->addr + (reg << host->bus_shift));
@@ -261,6 +272,7 @@ static int sh_sdhi_single_read(struct sh_sdhi_host *host, struct mmc_data *data)
long time;
unsigned short blocksize, i;
unsigned short *p = (unsigned short *)data->dest;
+ u64 *q = (u64 *)data->dest;
if ((unsigned long)p & 0x00000001) {
debug(DRIVER_NAME": %s: The data pointer is unaligned.",
@@ -281,8 +293,12 @@ static int sh_sdhi_single_read(struct sh_sdhi_host *host, struct mmc_data *data)
host->wait_int = 0;
blocksize = sh_sdhi_readw(host, SDHI_SIZE);
- for (i = 0; i < blocksize / 2; i++)
- *p++ = sh_sdhi_readw(host, SDHI_BUF0);
+ if (host->quirks & SH_SDHI_QUIRK_64BIT_BUF)
+ for (i = 0; i < blocksize / 8; i++)
+ *q++ = sh_sdhi_readq(host, SDHI_BUF0);
+ else
+ for (i = 0; i < blocksize / 2; i++)
+ *p++ = sh_sdhi_readw(host, SDHI_BUF0);
time = sh_sdhi_wait_interrupt_flag(host);
if (time == 0 || host->sd_error != 0)
@@ -297,6 +313,7 @@ static int sh_sdhi_multi_read(struct sh_sdhi_host *host, struct mmc_data *data)
long time;
unsigned short blocksize, i, sec;
unsigned short *p = (unsigned short *)data->dest;
+ u64 *q = (u64 *)data->dest;
if ((unsigned long)p & 0x00000001) {
debug(DRIVER_NAME": %s: The data pointer is unaligned.",
@@ -319,8 +336,12 @@ static int sh_sdhi_multi_read(struct sh_sdhi_host *host, struct mmc_data *data)
host->wait_int = 0;
blocksize = sh_sdhi_readw(host, SDHI_SIZE);
- for (i = 0; i < blocksize / 2; i++)
- *p++ = sh_sdhi_readw(host, SDHI_BUF0);
+ if (host->quirks & SH_SDHI_QUIRK_64BIT_BUF)
+ for (i = 0; i < blocksize / 8; i++)
+ *q++ = sh_sdhi_readq(host, SDHI_BUF0);
+ else
+ for (i = 0; i < blocksize / 2; i++)
+ *p++ = sh_sdhi_readw(host, SDHI_BUF0);
}
return 0;
@@ -332,6 +353,7 @@ static int sh_sdhi_single_write(struct sh_sdhi_host *host,
long time;
unsigned short blocksize, i;
const unsigned short *p = (const unsigned short *)data->src;
+ const u64 *q = (const u64 *)data->src;
if ((unsigned long)p & 0x00000001) {
debug(DRIVER_NAME": %s: The data pointer is unaligned.",
@@ -356,8 +378,12 @@ static int sh_sdhi_single_write(struct sh_sdhi_host *host,
host->wait_int = 0;
blocksize = sh_sdhi_readw(host, SDHI_SIZE);
- for (i = 0; i < blocksize / 2; i++)
- sh_sdhi_writew(host, SDHI_BUF0, *p++);
+ if (host->quirks & SH_SDHI_QUIRK_64BIT_BUF)
+ for (i = 0; i < blocksize / 8; i++)
+ sh_sdhi_writeq(host, SDHI_BUF0, *q++);
+ else
+ for (i = 0; i < blocksize / 2; i++)
+ sh_sdhi_writew(host, SDHI_BUF0, *p++);
time = sh_sdhi_wait_interrupt_flag(host);
if (time == 0 || host->sd_error != 0)
@@ -372,6 +398,7 @@ static int sh_sdhi_multi_write(struct sh_sdhi_host *host, struct mmc_data *data)
long time;
unsigned short i, sec, blocksize;
const unsigned short *p = (const unsigned short *)data->src;
+ const u64 *q = (const u64 *)data->src;
debug("%s: blocks = %d, blocksize = %d\n",
__func__, data->blocks, data->blocksize);
@@ -388,8 +415,12 @@ static int sh_sdhi_multi_write(struct sh_sdhi_host *host, struct mmc_data *data)
host->wait_int = 0;
blocksize = sh_sdhi_readw(host, SDHI_SIZE);
- for (i = 0; i < blocksize / 2; i++)
- sh_sdhi_writew(host, SDHI_BUF0, *p++);
+ if (host->quirks & SH_SDHI_QUIRK_64BIT_BUF)
+ for (i = 0; i < blocksize / 8; i++)
+ sh_sdhi_writeq(host, SDHI_BUF0, *q++);
+ else
+ for (i = 0; i < blocksize / 2; i++)
+ sh_sdhi_writew(host, SDHI_BUF0, *p++);
}
return 0;
@@ -458,6 +489,13 @@ static unsigned short sh_sdhi_set_cmd(struct sh_sdhi_host *host,
else /* SD_SWITCH */
opc = SDHI_SD_SWITCH;
break;
+ case MMC_CMD_SEND_OP_COND:
+ opc = SDHI_MMC_SEND_OP_COND;
+ break;
+ case MMC_CMD_SEND_EXT_CSD:
+ if (data)
+ opc = SDHI_MMC_SEND_EXT_CSD;
+ break;
default:
break;
}
@@ -482,6 +520,7 @@ static unsigned short sh_sdhi_data_trans(struct sh_sdhi_host *host,
case MMC_CMD_READ_SINGLE_BLOCK:
case SDHI_SD_APP_SEND_SCR:
case SDHI_SD_SWITCH: /* SD_SWITCH */
+ case SDHI_MMC_SEND_EXT_CSD:
ret = sh_sdhi_single_read(host, data);
break;
default:
@@ -546,8 +585,6 @@ static int sh_sdhi_start_cmd(struct sh_sdhi_host *host,
break;
}
- sh_sdhi_writew(host, SDHI_CMD, (unsigned short)(opc & CMD_MASK));
-
host->wait_int = 0;
sh_sdhi_writew(host, SDHI_INFO1_MASK,
~INFO1M_RESP_END & sh_sdhi_readw(host, SDHI_INFO1_MASK));
@@ -557,6 +594,8 @@ static int sh_sdhi_start_cmd(struct sh_sdhi_host *host,
INFO2M_RESP_TIMEOUT | INFO2M_ILA) &
sh_sdhi_readw(host, SDHI_INFO2_MASK));
+ sh_sdhi_writew(host, SDHI_CMD, (unsigned short)(opc & CMD_MASK));
+
time = sh_sdhi_wait_interrupt_flag(host);
if (!time)
return sh_sdhi_error_manage(host);
@@ -617,12 +656,18 @@ static int sh_sdhi_set_ios(struct mmc *mmc)
if (ret)
return -EINVAL;
- if (mmc->bus_width == 4)
- sh_sdhi_writew(host, SDHI_OPTION, ~OPT_BUS_WIDTH_1 &
- sh_sdhi_readw(host, SDHI_OPTION));
+ if (mmc->bus_width == 8)
+ sh_sdhi_writew(host, SDHI_OPTION,
+ OPT_BUS_WIDTH_8 | (~OPT_BUS_WIDTH_M &
+ sh_sdhi_readw(host, SDHI_OPTION)));
+ else if (mmc->bus_width == 4)
+ sh_sdhi_writew(host, SDHI_OPTION,
+ OPT_BUS_WIDTH_4 | (~OPT_BUS_WIDTH_M &
+ sh_sdhi_readw(host, SDHI_OPTION)));
else
- sh_sdhi_writew(host, SDHI_OPTION, OPT_BUS_WIDTH_1 |
- sh_sdhi_readw(host, SDHI_OPTION));
+ sh_sdhi_writew(host, SDHI_OPTION,
+ OPT_BUS_WIDTH_1 | (~OPT_BUS_WIDTH_M &
+ sh_sdhi_readw(host, SDHI_OPTION)));
debug("clock = %d, buswidth = %d\n", mmc->clock, mmc->bus_width);
@@ -653,6 +698,19 @@ static const struct mmc_ops sh_sdhi_ops = {
.init = sh_sdhi_initialize,
};
+#ifdef CONFIG_RCAR_GEN3
+static struct mmc_config sh_sdhi_cfg = {
+ .name = DRIVER_NAME,
+ .ops = &sh_sdhi_ops,
+ .f_min = CLKDEV_INIT,
+ .f_max = CLKDEV_HS_DATA,
+ .voltages = MMC_VDD_165_195 | MMC_VDD_32_33 | MMC_VDD_33_34,
+ .host_caps = MMC_MODE_4BIT | MMC_MODE_8BIT | MMC_MODE_HS |
+ MMC_MODE_HS_52MHz,
+ .part_type = PART_TYPE_DOS,
+ .b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT,
+};
+#else
static struct mmc_config sh_sdhi_cfg = {
.name = DRIVER_NAME,
.ops = &sh_sdhi_ops,
@@ -663,6 +721,7 @@ static struct mmc_config sh_sdhi_cfg = {
.part_type = PART_TYPE_DOS,
.b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT,
};
+#endif
int sh_sdhi_init(unsigned long addr, int ch, unsigned long quirks)
{
@@ -687,7 +746,9 @@ int sh_sdhi_init(unsigned long addr, int ch, unsigned long quirks)
host->addr = addr;
host->quirks = quirks;
- if (host->quirks & SH_SDHI_QUIRK_16BIT_BUF)
+ if (host->quirks & SH_SDHI_QUIRK_64BIT_BUF)
+ host->bus_shift = 2;
+ else if (host->quirks & SH_SDHI_QUIRK_16BIT_BUF)
host->bus_shift = 1;
return ret;
generated by cgit (git 2.34.1) at 2024-12-28 21:11:26 +0000