]> git.karo-electronics.de Git - mv-sheeva.git/commitdiff
sh: prepare MMCIF driver header file
authorMagnus Damm <damm@opensource.se>
Tue, 18 May 2010 14:42:51 +0000 (14:42 +0000)
committerPaul Mundt <lethal@linux-sh.org>
Mon, 31 May 2010 04:11:41 +0000 (13:11 +0900)
Update the MMCIF driver to include register information
and register access functions in the header file.
The MMCIF boot code builds on top of this.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
drivers/mmc/host/sh_mmcif.c
include/linux/mmc/sh_mmcif.h

index eb97830c0344a57a7d458fc3430ab35165f6be76..5d3f824bb5a31078257ecbb0c10941fc874d3ad7 100644 (file)
 #define DRIVER_NAME    "sh_mmcif"
 #define DRIVER_VERSION "2010-04-28"
 
-#define MMCIF_CE_CMD_SET       0x00000000
-#define MMCIF_CE_ARG           0x00000008
-#define MMCIF_CE_ARG_CMD12     0x0000000C
-#define MMCIF_CE_CMD_CTRL      0x00000010
-#define MMCIF_CE_BLOCK_SET     0x00000014
-#define MMCIF_CE_CLK_CTRL      0x00000018
-#define MMCIF_CE_BUF_ACC       0x0000001C
-#define MMCIF_CE_RESP3         0x00000020
-#define MMCIF_CE_RESP2         0x00000024
-#define MMCIF_CE_RESP1         0x00000028
-#define MMCIF_CE_RESP0         0x0000002C
-#define MMCIF_CE_RESP_CMD12    0x00000030
-#define MMCIF_CE_DATA          0x00000034
-#define MMCIF_CE_INT           0x00000040
-#define MMCIF_CE_INT_MASK      0x00000044
-#define MMCIF_CE_HOST_STS1     0x00000048
-#define MMCIF_CE_HOST_STS2     0x0000004C
-#define MMCIF_CE_VERSION       0x0000007C
-
 /* CE_CMD_SET */
 #define CMD_MASK               0x3f000000
 #define CMD_SET_RTYP_NO                ((0 << 23) | (0 << 22))
@@ -207,27 +188,17 @@ struct sh_mmcif_host {
        wait_queue_head_t intr_wait;
 };
 
-static inline u32 sh_mmcif_readl(struct sh_mmcif_host *host, unsigned int reg)
-{
-       return readl(host->addr + reg);
-}
-
-static inline void sh_mmcif_writel(struct sh_mmcif_host *host,
-                                       unsigned int reg, u32 val)
-{
-       writel(val, host->addr + reg);
-}
 
 static inline void sh_mmcif_bitset(struct sh_mmcif_host *host,
                                        unsigned int reg, u32 val)
 {
-       writel(val | sh_mmcif_readl(host, reg), host->addr + reg);
+       writel(val | readl(host->addr + reg), host->addr + reg);
 }
 
 static inline void sh_mmcif_bitclr(struct sh_mmcif_host *host,
                                        unsigned int reg, u32 val)
 {
-       writel(~val & sh_mmcif_readl(host, reg), host->addr + reg);
+       writel(~val & readl(host->addr + reg), host->addr + reg);
 }
 
 
@@ -253,10 +224,10 @@ static void sh_mmcif_sync_reset(struct sh_mmcif_host *host)
 {
        u32 tmp;
 
-       tmp = 0x010f0000 & sh_mmcif_readl(host, MMCIF_CE_CLK_CTRL);
+       tmp = 0x010f0000 & sh_mmcif_readl(host->addr, MMCIF_CE_CLK_CTRL);
 
-       sh_mmcif_writel(host, MMCIF_CE_VERSION, SOFT_RST_ON);
-       sh_mmcif_writel(host, MMCIF_CE_VERSION, SOFT_RST_OFF);
+       sh_mmcif_writel(host->addr, MMCIF_CE_VERSION, SOFT_RST_ON);
+       sh_mmcif_writel(host->addr, MMCIF_CE_VERSION, SOFT_RST_OFF);
        sh_mmcif_bitset(host, MMCIF_CE_CLK_CTRL, tmp |
                SRSPTO_256 | SRBSYTO_29 | SRWDTO_29 | SCCSTO_29);
        /* byte swap on */
@@ -271,12 +242,10 @@ static int sh_mmcif_error_manage(struct sh_mmcif_host *host)
        host->sd_error = 0;
        host->wait_int = 0;
 
-       state1 = sh_mmcif_readl(host, MMCIF_CE_HOST_STS1);
-       state2 = sh_mmcif_readl(host, MMCIF_CE_HOST_STS2);
-       pr_debug("%s: ERR HOST_STS1 = %08x\n", \
-                       DRIVER_NAME, sh_mmcif_readl(host, MMCIF_CE_HOST_STS1));
-       pr_debug("%s: ERR HOST_STS2 = %08x\n", \
-                       DRIVER_NAME, sh_mmcif_readl(host, MMCIF_CE_HOST_STS2));
+       state1 = sh_mmcif_readl(host->addr, MMCIF_CE_HOST_STS1);
+       state2 = sh_mmcif_readl(host->addr, MMCIF_CE_HOST_STS2);
+       pr_debug("%s: ERR HOST_STS1 = %08x\n", DRIVER_NAME, state1);
+       pr_debug("%s: ERR HOST_STS2 = %08x\n", DRIVER_NAME, state2);
 
        if (state1 & STS1_CMDSEQ) {
                sh_mmcif_bitset(host, MMCIF_CE_CMD_CTRL, CMD_CTRL_BREAK);
@@ -288,7 +257,7 @@ static int sh_mmcif_error_manage(struct sh_mmcif_host *host)
                                        "command sequence timeout err\n");
                                return -EIO;
                        }
-                       if (!(sh_mmcif_readl(host, MMCIF_CE_HOST_STS1)
+                       if (!(sh_mmcif_readl(host->addr, MMCIF_CE_HOST_STS1)
                                                                & STS1_CMDSEQ))
                                break;
                        mdelay(1);
@@ -330,9 +299,9 @@ static int sh_mmcif_single_read(struct sh_mmcif_host *host,
 
        host->wait_int = 0;
        blocksize = (BLOCK_SIZE_MASK &
-                       sh_mmcif_readl(host, MMCIF_CE_BLOCK_SET)) + 3;
+                       sh_mmcif_readl(host->addr, MMCIF_CE_BLOCK_SET)) + 3;
        for (i = 0; i < blocksize / 4; i++)
-               *p++ = sh_mmcif_readl(host, MMCIF_CE_DATA);
+               *p++ = sh_mmcif_readl(host->addr, MMCIF_CE_DATA);
 
        /* buffer read end */
        sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MBUFRE);
@@ -353,7 +322,8 @@ static int sh_mmcif_multi_read(struct sh_mmcif_host *host,
        long time;
        u32 blocksize, i, j, sec, *p;
 
-       blocksize = BLOCK_SIZE_MASK & sh_mmcif_readl(host, MMCIF_CE_BLOCK_SET);
+       blocksize = BLOCK_SIZE_MASK & sh_mmcif_readl(host->addr,
+                                                    MMCIF_CE_BLOCK_SET);
        for (j = 0; j < data->sg_len; j++) {
                p = sg_virt(data->sg);
                host->wait_int = 0;
@@ -370,7 +340,8 @@ static int sh_mmcif_multi_read(struct sh_mmcif_host *host,
 
                        host->wait_int = 0;
                        for (i = 0; i < blocksize / 4; i++)
-                               *p++ = sh_mmcif_readl(host, MMCIF_CE_DATA);
+                               *p++ = sh_mmcif_readl(host->addr,
+                                                     MMCIF_CE_DATA);
                }
                if (j < data->sg_len - 1)
                        data->sg++;
@@ -397,9 +368,9 @@ static int sh_mmcif_single_write(struct sh_mmcif_host *host,
 
        host->wait_int = 0;
        blocksize = (BLOCK_SIZE_MASK &
-                       sh_mmcif_readl(host, MMCIF_CE_BLOCK_SET)) + 3;
+                       sh_mmcif_readl(host->addr, MMCIF_CE_BLOCK_SET)) + 3;
        for (i = 0; i < blocksize / 4; i++)
-               sh_mmcif_writel(host, MMCIF_CE_DATA, *p++);
+               sh_mmcif_writel(host->addr, MMCIF_CE_DATA, *p++);
 
        /* buffer write end */
        sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MDTRANE);
@@ -421,7 +392,8 @@ static int sh_mmcif_multi_write(struct sh_mmcif_host *host,
        long time;
        u32 i, sec, j, blocksize, *p;
 
-       blocksize = BLOCK_SIZE_MASK & sh_mmcif_readl(host, MMCIF_CE_BLOCK_SET);
+       blocksize = BLOCK_SIZE_MASK & sh_mmcif_readl(host->addr,
+                                                    MMCIF_CE_BLOCK_SET);
 
        for (j = 0; j < data->sg_len; j++) {
                p = sg_virt(data->sg);
@@ -439,7 +411,8 @@ static int sh_mmcif_multi_write(struct sh_mmcif_host *host,
 
                        host->wait_int = 0;
                        for (i = 0; i < blocksize / 4; i++)
-                               sh_mmcif_writel(host, MMCIF_CE_DATA, *p++);
+                               sh_mmcif_writel(host->addr,
+                                               MMCIF_CE_DATA, *p++);
                }
                if (j < data->sg_len - 1)
                        data->sg++;
@@ -451,18 +424,18 @@ static void sh_mmcif_get_response(struct sh_mmcif_host *host,
                                                struct mmc_command *cmd)
 {
        if (cmd->flags & MMC_RSP_136) {
-               cmd->resp[0] = sh_mmcif_readl(host, MMCIF_CE_RESP3);
-               cmd->resp[1] = sh_mmcif_readl(host, MMCIF_CE_RESP2);
-               cmd->resp[2] = sh_mmcif_readl(host, MMCIF_CE_RESP1);
-               cmd->resp[3] = sh_mmcif_readl(host, MMCIF_CE_RESP0);
+               cmd->resp[0] = sh_mmcif_readl(host->addr, MMCIF_CE_RESP3);
+               cmd->resp[1] = sh_mmcif_readl(host->addr, MMCIF_CE_RESP2);
+               cmd->resp[2] = sh_mmcif_readl(host->addr, MMCIF_CE_RESP1);
+               cmd->resp[3] = sh_mmcif_readl(host->addr, MMCIF_CE_RESP0);
        } else
-               cmd->resp[0] = sh_mmcif_readl(host, MMCIF_CE_RESP0);
+               cmd->resp[0] = sh_mmcif_readl(host->addr, MMCIF_CE_RESP0);
 }
 
 static void sh_mmcif_get_cmd12response(struct sh_mmcif_host *host,
                                                struct mmc_command *cmd)
 {
-       cmd->resp[0] = sh_mmcif_readl(host, MMCIF_CE_RESP_CMD12);
+       cmd->resp[0] = sh_mmcif_readl(host->addr, MMCIF_CE_RESP_CMD12);
 }
 
 static u32 sh_mmcif_set_cmd(struct sh_mmcif_host *host,
@@ -596,18 +569,19 @@ static void sh_mmcif_start_cmd(struct sh_mmcif_host *host,
                MASK_MRDATTO | MASK_MRBSYTO | MASK_MRSPTO;
 
        if (host->data) {
-               sh_mmcif_writel(host, MMCIF_CE_BLOCK_SET, 0);
-               sh_mmcif_writel(host, MMCIF_CE_BLOCK_SET, mrq->data->blksz);
+               sh_mmcif_writel(host->addr, MMCIF_CE_BLOCK_SET, 0);
+               sh_mmcif_writel(host->addr, MMCIF_CE_BLOCK_SET,
+                               mrq->data->blksz);
        }
        opc = sh_mmcif_set_cmd(host, mrq, cmd, opc);
 
-       sh_mmcif_writel(host, MMCIF_CE_INT, 0xD80430C0);
-       sh_mmcif_writel(host, MMCIF_CE_INT_MASK, mask);
+       sh_mmcif_writel(host->addr, MMCIF_CE_INT, 0xD80430C0);
+       sh_mmcif_writel(host->addr, MMCIF_CE_INT_MASK, mask);
        /* set arg */
-       sh_mmcif_writel(host, MMCIF_CE_ARG, cmd->arg);
+       sh_mmcif_writel(host->addr, MMCIF_CE_ARG, cmd->arg);
        host->wait_int = 0;
        /* set cmd */
-       sh_mmcif_writel(host, MMCIF_CE_CMD_SET, opc);
+       sh_mmcif_writel(host->addr, MMCIF_CE_CMD_SET, opc);
 
        time = wait_event_interruptible_timeout(host->intr_wait,
                host->wait_int == 1 || host->sd_error == 1, host->timeout);
@@ -752,43 +726,44 @@ static irqreturn_t sh_mmcif_intr(int irq, void *dev_id)
        u32 state = 0;
        int err = 0;
 
-       state = sh_mmcif_readl(host, MMCIF_CE_INT);
+       state = sh_mmcif_readl(host->addr, MMCIF_CE_INT);
 
        if (state & INT_RBSYE) {
-               sh_mmcif_writel(host, MMCIF_CE_INT, ~(INT_RBSYE | INT_CRSPE));
+               sh_mmcif_writel(host->addr, MMCIF_CE_INT,
+                               ~(INT_RBSYE | INT_CRSPE));
                sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, MASK_MRBSYE);
        } else if (state & INT_CRSPE) {
-               sh_mmcif_writel(host, MMCIF_CE_INT, ~INT_CRSPE);
+               sh_mmcif_writel(host->addr, MMCIF_CE_INT, ~INT_CRSPE);
                sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, MASK_MCRSPE);
        } else if (state & INT_BUFREN) {
-               sh_mmcif_writel(host, MMCIF_CE_INT, ~INT_BUFREN);
+               sh_mmcif_writel(host->addr, MMCIF_CE_INT, ~INT_BUFREN);
                sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, MASK_MBUFREN);
        } else if (state & INT_BUFWEN) {
-               sh_mmcif_writel(host, MMCIF_CE_INT, ~INT_BUFWEN);
+               sh_mmcif_writel(host->addr, MMCIF_CE_INT, ~INT_BUFWEN);
                sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, MASK_MBUFWEN);
        } else if (state & INT_CMD12DRE) {
-               sh_mmcif_writel(host, MMCIF_CE_INT,
+               sh_mmcif_writel(host->addr, MMCIF_CE_INT,
                        ~(INT_CMD12DRE | INT_CMD12RBE |
                          INT_CMD12CRE | INT_BUFRE));
                sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, MASK_MCMD12DRE);
        } else if (state & INT_BUFRE) {
-               sh_mmcif_writel(host, MMCIF_CE_INT, ~INT_BUFRE);
+               sh_mmcif_writel(host->addr, MMCIF_CE_INT, ~INT_BUFRE);
                sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, MASK_MBUFRE);
        } else if (state & INT_DTRANE) {
-               sh_mmcif_writel(host, MMCIF_CE_INT, ~INT_DTRANE);
+               sh_mmcif_writel(host->addr, MMCIF_CE_INT, ~INT_DTRANE);
                sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, MASK_MDTRANE);
        } else if (state & INT_CMD12RBE) {
-               sh_mmcif_writel(host, MMCIF_CE_INT,
+               sh_mmcif_writel(host->addr, MMCIF_CE_INT,
                                ~(INT_CMD12RBE | INT_CMD12CRE));
                sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, MASK_MCMD12RBE);
        } else if (state & INT_ERR_STS) {
                /* err interrupts */
-               sh_mmcif_writel(host, MMCIF_CE_INT, ~state);
+               sh_mmcif_writel(host->addr, MMCIF_CE_INT, ~state);
                sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, state);
                err = 1;
        } else {
                pr_debug("%s: Not support int\n", DRIVER_NAME);
-               sh_mmcif_writel(host, MMCIF_CE_INT, ~state);
+               sh_mmcif_writel(host->addr, MMCIF_CE_INT, ~state);
                sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, state);
                err = 1;
        }
@@ -894,12 +869,12 @@ static int __devinit sh_mmcif_probe(struct platform_device *pdev)
                goto clean_up2;
        }
 
-       sh_mmcif_writel(host, MMCIF_CE_INT_MASK, MASK_ALL);
+       sh_mmcif_writel(host->addr, MMCIF_CE_INT_MASK, MASK_ALL);
        sh_mmcif_detect(host->mmc);
 
        pr_info("%s: driver version %s\n", DRIVER_NAME, DRIVER_VERSION);
        pr_debug("%s: chip ver H'%04x\n", DRIVER_NAME,
-                       sh_mmcif_readl(host, MMCIF_CE_VERSION) & 0x0000ffff);
+               sh_mmcif_readl(host->addr, MMCIF_CE_VERSION) & 0x0000ffff);
        return ret;
 
 clean_up2:
@@ -917,7 +892,7 @@ static int __devexit sh_mmcif_remove(struct platform_device *pdev)
        struct sh_mmcif_host *host = platform_get_drvdata(pdev);
        int irq[2];
 
-       sh_mmcif_writel(host, MMCIF_CE_INT_MASK, MASK_ALL);
+       sh_mmcif_writel(host->addr, MMCIF_CE_INT_MASK, MASK_ALL);
 
        irq[0] = platform_get_irq(pdev, 0);
        irq[1] = platform_get_irq(pdev, 1);
index aafe832f18aa276f6fc45019ed4ec3f7cc22caf8..e079c6beeb983bcab6dd4b4fbf37179a6f7af58f 100644 (file)
@@ -14,6 +14,9 @@
 #ifndef __SH_MMCIF_H__
 #define __SH_MMCIF_H__
 
+#include <linux/platform_device.h>
+#include <linux/io.h>
+
 /*
  * MMCIF : CE_CLK_CTRL [19:16]
  * 1000 : Peripheral clock / 512
@@ -36,4 +39,33 @@ struct sh_mmcif_plat_data {
        u32     ocr;
 };
 
+#define MMCIF_CE_CMD_SET       0x00000000
+#define MMCIF_CE_ARG           0x00000008
+#define MMCIF_CE_ARG_CMD12     0x0000000C
+#define MMCIF_CE_CMD_CTRL      0x00000010
+#define MMCIF_CE_BLOCK_SET     0x00000014
+#define MMCIF_CE_CLK_CTRL      0x00000018
+#define MMCIF_CE_BUF_ACC       0x0000001C
+#define MMCIF_CE_RESP3         0x00000020
+#define MMCIF_CE_RESP2         0x00000024
+#define MMCIF_CE_RESP1         0x00000028
+#define MMCIF_CE_RESP0         0x0000002C
+#define MMCIF_CE_RESP_CMD12    0x00000030
+#define MMCIF_CE_DATA          0x00000034
+#define MMCIF_CE_INT           0x00000040
+#define MMCIF_CE_INT_MASK      0x00000044
+#define MMCIF_CE_HOST_STS1     0x00000048
+#define MMCIF_CE_HOST_STS2     0x0000004C
+#define MMCIF_CE_VERSION       0x0000007C
+
+extern inline u32 sh_mmcif_readl(void __iomem *addr, int reg)
+{
+       return readl(addr + reg);
+}
+
+extern inline void sh_mmcif_writel(void __iomem *addr, int reg, u32 val)
+{
+       writel(val, addr + reg);
+}
+
 #endif /* __SH_MMCIF_H__ */