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Merge branches 'sh/memchunk' and 'common/mmcif' into sh-latest

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This commit is contained in:
Paul Mundt
2011-01-11 13:05:15 +09:00
parent 239f6dcbab 2f5998610a 54b384634f
commit 89e9fd32c6
2654 changed files with 160543 additions and 97312 deletions
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91
include/linux/mmc/sh_mmcif.h
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@@ -14,8 +14,9 @@
#ifndef __SH_MMCIF_H__
#define __SH_MMCIF_H__
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/sh_dma.h>
/*
* MMCIF : CE_CLK_CTRL [19:16]
@@ -31,13 +32,19 @@
* 1111 : Peripheral clock (sup_pclk set '1')
*/
struct sh_mmcif_dma {
struct sh_dmae_slave chan_priv_tx;
struct sh_dmae_slave chan_priv_rx;
};
struct sh_mmcif_plat_data {
void (*set_pwr)(struct platform_device *pdev, int state);
void (*down_pwr)(struct platform_device *pdev);
int (*get_cd)(struct platform_device *pdef);
u8 sup_pclk; /* 1 :SH7757, 0: SH7724/SH7372 */
unsigned long caps;
u32 ocr;
struct sh_mmcif_dma *dma;
u8 sup_pclk; /* 1 :SH7757, 0: SH7724/SH7372 */
unsigned long caps;
u32 ocr;
};
#define MMCIF_CE_CMD_SET 0x00000000
@@ -59,6 +66,32 @@ struct sh_mmcif_plat_data {
#define MMCIF_CE_HOST_STS2 0x0000004C
#define MMCIF_CE_VERSION 0x0000007C
/* CE_BUF_ACC */
#define BUF_ACC_DMAWEN (1 << 25)
#define BUF_ACC_DMAREN (1 << 24)
#define BUF_ACC_BUSW_32 (0 << 17)
#define BUF_ACC_BUSW_16 (1 << 17)
#define BUF_ACC_ATYP (1 << 16)
/* CE_CLK_CTRL */
#define CLK_ENABLE (1 << 24) /* 1: output mmc clock */
#define CLK_CLEAR ((1 << 19) | (1 << 18) | (1 << 17) | (1 << 16))
#define CLK_SUP_PCLK ((1 << 19) | (1 << 18) | (1 << 17) | (1 << 16))
#define CLKDIV_4 (1<<16) /* mmc clock frequency.
* n: bus clock/(2^(n+1)) */
#define CLKDIV_256 (7<<16) /* mmc clock frequency. (see above) */
#define SRSPTO_256 ((1 << 13) | (0 << 12)) /* resp timeout */
#define SRBSYTO_29 ((1 << 11) | (1 << 10) | \
(1 << 9) | (1 << 8)) /* resp busy timeout */
#define SRWDTO_29 ((1 << 7) | (1 << 6) | \
(1 << 5) | (1 << 4)) /* read/write timeout */
#define SCCSTO_29 ((1 << 3) | (1 << 2) | \
(1 << 1) | (1 << 0)) /* ccs timeout */
/* CE_VERSION */
#define SOFT_RST_ON (1 << 31)
#define SOFT_RST_OFF 0
static inline u32 sh_mmcif_readl(void __iomem *addr, int reg)
{
return readl(addr + reg);
@@ -71,6 +104,9 @@ static inline void sh_mmcif_writel(void __iomem *addr, int reg, u32 val)
#define SH_MMCIF_BBS 512 /* boot block size */
enum { MMCIF_PROGRESS_ENTER, MMCIF_PROGRESS_INIT,
MMCIF_PROGRESS_LOAD, MMCIF_PROGRESS_DONE };
static inline void sh_mmcif_boot_cmd_send(void __iomem *base,
unsigned long cmd, unsigned long arg)
{
@@ -133,6 +169,17 @@ static inline int sh_mmcif_boot_do_read(void __iomem *base,
unsigned long k;
int ret = 0;
/* In data transfer mode: Set clock to Bus clock/4 (about 20Mhz) */
sh_mmcif_writel(base, MMCIF_CE_CLK_CTRL,
CLK_ENABLE | CLKDIV_4 | SRSPTO_256 |
SRBSYTO_29 | SRWDTO_29 | SCCSTO_29);
/* CMD9 - Get CSD */
sh_mmcif_boot_cmd(base, 0x09806000, 0x00010000);
/* CMD7 - Select the card */
sh_mmcif_boot_cmd(base, 0x07400000, 0x00010000);
/* CMD16 - Set the block size */
sh_mmcif_boot_cmd(base, 0x10400000, SH_MMCIF_BBS);
@@ -145,21 +192,20 @@ static inline int sh_mmcif_boot_do_read(void __iomem *base,
static inline void sh_mmcif_boot_init(void __iomem *base)
{
unsigned long tmp;
/* reset */
tmp = sh_mmcif_readl(base, MMCIF_CE_VERSION);
sh_mmcif_writel(base, MMCIF_CE_VERSION, tmp | 0x80000000);
sh_mmcif_writel(base, MMCIF_CE_VERSION, tmp & ~0x80000000);
sh_mmcif_writel(base, MMCIF_CE_VERSION, SOFT_RST_ON);
sh_mmcif_writel(base, MMCIF_CE_VERSION, SOFT_RST_OFF);
/* byte swap */
sh_mmcif_writel(base, MMCIF_CE_BUF_ACC, 0x00010000);
sh_mmcif_writel(base, MMCIF_CE_BUF_ACC, BUF_ACC_ATYP);
/* Set block size in MMCIF hardware */
sh_mmcif_writel(base, MMCIF_CE_BLOCK_SET, SH_MMCIF_BBS);
/* Enable the clock, set it to Bus clock/256 (about 325Khz)*/
sh_mmcif_writel(base, MMCIF_CE_CLK_CTRL, 0x01072fff);
/* Enable the clock, set it to Bus clock/256 (about 325Khz). */
sh_mmcif_writel(base, MMCIF_CE_CLK_CTRL,
CLK_ENABLE | CLKDIV_256 | SRSPTO_256 |
SRBSYTO_29 | SRWDTO_29 | SCCSTO_29);
/* CMD0 */
sh_mmcif_boot_cmd(base, 0x00000040, 0);
@@ -177,25 +223,4 @@ static inline void sh_mmcif_boot_init(void __iomem *base)
sh_mmcif_boot_cmd(base, 0x03400040, 0x00010000);
}
static inline void sh_mmcif_boot_slurp(void __iomem *base,
unsigned char *buf,
unsigned long no_bytes)
{
unsigned long tmp;
/* In data transfer mode: Set clock to Bus clock/4 (about 20Mhz) */
sh_mmcif_writel(base, MMCIF_CE_CLK_CTRL, 0x01012fff);
/* CMD9 - Get CSD */
sh_mmcif_boot_cmd(base, 0x09806000, 0x00010000);
/* CMD7 - Select the card */
sh_mmcif_boot_cmd(base, 0x07400000, 0x00010000);
tmp = no_bytes / SH_MMCIF_BBS;
tmp += (no_bytes % SH_MMCIF_BBS) ? 1 : 0;
sh_mmcif_boot_do_read(base, 512, tmp, buf);
}
#endif /* __SH_MMCIF_H__ */