[RFT] au1xmmc: remove board-specific code | |
| [Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] | |
Hello,
I received a new Au1200 based toy on which the current driver-implemented
SD card-detect scheme doesn't work. However since this toy does have a
dedicated SD carddetect IRQ and card status bits, I took the opportunity
to get rid of the DB1200 specific parts in the driver and added callbacks
for platform/board-specific carddetect and voltage setting methods.
What I need is feedback from testers with access to db1200/pb1200 boards:
The patch below (+ boardstuff) works on my board but I'm not sure if
I got the carddetect poll timer for the db1200 right.
Please test and comment!
Thanks!
Manuel Lauss
---
>From fd0021032494ad61f36558f1760391f715c05e97 Mon Sep 17 00:00:00 2001
From: Manuel Lauss <mano@xxxxxxxxxxxxx>
Date: Tue, 6 May 2008 20:03:24 +0200
Subject: [PATCH] au1xmmc updates
- export get_au1x00_speed() for modules
- move DB/PB1200 specific functions out of the driver to the board code,
wrap them in a structure and pass them to the driver via platform_data.
- code style changes
- hook up the SDIO irq
---
arch/mips/au1000/common/clocks.c | 2 +-
arch/mips/au1000/common/platform.c | 32 --
arch/mips/au1000/pb1200/platform.c | 127 +++++++-
drivers/mmc/host/au1xmmc.c | 573 +++++++++++++++++------------
drivers/mmc/host/au1xmmc.h | 96 -----
include/asm-mips/mach-au1x00/au1100_mmc.h | 43 ++-
6 files changed, 501 insertions(+), 372 deletions(-)
delete mode 100644 drivers/mmc/host/au1xmmc.h
diff --git a/arch/mips/au1000/common/clocks.c b/arch/mips/au1000/common/clocks.c
index 3ce6cac..6dbc87a 100644
--- a/arch/mips/au1000/common/clocks.c
+++ b/arch/mips/au1000/common/clocks.c
@@ -46,7 +46,7 @@ unsigned int get_au1x00_speed(void)
{
return au1x00_clock;
}
-
+EXPORT_SYMBOL(get_au1x00_speed);
/*
diff --git a/arch/mips/au1000/common/platform.c b/arch/mips/au1000/common/platform.c
index 31d2a22..08a5900 100644
--- a/arch/mips/au1000/common/platform.c
+++ b/arch/mips/au1000/common/platform.c
@@ -162,24 +162,6 @@ static struct resource au1xxx_usb_gdt_resources[] = {
},
};
-static struct resource au1xxx_mmc_resources[] = {
- [0] = {
- .start = SD0_PHYS_ADDR,
- .end = SD0_PHYS_ADDR + 0x40,
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .start = SD1_PHYS_ADDR,
- .end = SD1_PHYS_ADDR + 0x40,
- .flags = IORESOURCE_MEM,
- },
- [2] = {
- .start = AU1200_SD_INT,
- .end = AU1200_SD_INT,
- .flags = IORESOURCE_IRQ,
- }
-};
-
static u64 udc_dmamask = ~(u32)0;
static struct platform_device au1xxx_usb_gdt_device = {
@@ -245,19 +227,6 @@ static struct platform_device au1200_lcd_device = {
.num_resources = ARRAY_SIZE(au1200_lcd_resources),
.resource = au1200_lcd_resources,
};
-
-static u64 au1xxx_mmc_dmamask = ~(u32)0;
-
-static struct platform_device au1xxx_mmc_device = {
- .name = "au1xxx-mmc",
- .id = 0,
- .dev = {
- .dma_mask = &au1xxx_mmc_dmamask,
- .coherent_dma_mask = 0xffffffff,
- },
- .num_resources = ARRAY_SIZE(au1xxx_mmc_resources),
- .resource = au1xxx_mmc_resources,
-};
#endif /* #ifdef CONFIG_SOC_AU1200 */
static struct platform_device au1x00_pcmcia_device = {
@@ -295,7 +264,6 @@ static struct platform_device *au1xxx_platform_devices[] __initdata = {
&au1xxx_usb_gdt_device,
&au1xxx_usb_otg_device,
&au1200_lcd_device,
- &au1xxx_mmc_device,
#endif
#ifdef SMBUS_PSC_BASE
&pbdb_smbus_device,
diff --git a/arch/mips/au1000/pb1200/platform.c b/arch/mips/au1000/pb1200/platform.c
index 5930110..bee2bf7 100644
--- a/arch/mips/au1000/pb1200/platform.c
+++ b/arch/mips/au1000/pb1200/platform.c
@@ -20,8 +20,17 @@
#include <linux/init.h>
#include <linux/platform_device.h>
+#include <linux/mmc/host.h>
#include <asm/mach-au1x00/au1xxx.h>
+#include <asm/mach-au1x00/au1xxx_dbdma.h>
+#include <asm/mach-au1x00/au1100_mmc.h>
+
+#if defined(CONFIG_MIPS_PB1200)
+#include <asm/mach-pb1x00/pb1200.h>
+#elif defined(CONFIG_MIPS_DB1200)
+#include <asm/mach-db1x00/db1200.h>
+#endif
static struct resource ide_resources[] = {
[0] = {
@@ -70,9 +79,125 @@ static struct platform_device smc91c111_device = {
.resource = smc91c111_resources
};
+
+static const struct {
+ u16 bcsrpwr;
+ u16 bcsrstatus;
+ u16 wpstatus;
+} au1xmmc_card_table[] = {
+ { BCSR_BOARD_SD0PWR, BCSR_INT_SD0INSERT, BCSR_STATUS_SD0WP },
+#ifndef CONFIG_MIPS_DB1200
+ { BCSR_BOARD_SD1PWR, BCSR_INT_SD1INSERT, BCSR_STATUS_SD1WP }
+#endif
+};
+
+static void pb1200mmc_set_power(void *mmc_host, int state)
+{
+ struct au1xmmc_host *host = mmc_priv((struct mmc_host *)mmc_host);
+ u32 val = au1xmmc_card_table[host->id].bcsrpwr;
+
+ bcsr->board &= ~val;
+ if (state)
+ bcsr->board |= val;
+
+ au_sync_delay(1);
+}
+
+static int pb1200mmc_card_readonly(void *mmc_host)
+{
+ struct au1xmmc_host *host = mmc_priv((struct mmc_host *)mmc_host);
+ return (bcsr->status & au1xmmc_card_table[host->id].wpstatus) ? 1 : 0;
+}
+
+static int pb1200mmc_card_inserted(void *mmc_host)
+{
+ struct au1xmmc_host *host = mmc_priv((struct mmc_host *)mmc_host);
+ return (bcsr->sig_status & au1xmmc_card_table[host->id].bcsrstatus)
+ ? 1 : 0;
+}
+
+static struct au1xmmc_platdata db1xmmcpd = {
+ .set_power = pb1200mmc_set_power,
+ .card_inserted = pb1200mmc_card_inserted,
+ .card_readonly = pb1200mmc_card_readonly,
+ .cd_setup = NULL, /* use poll-timer in driver */
+};
+
+static u64 au1xxx_mmc_dmamask = ~(u32)0;
+
+struct resource au1200sd0_res[] = {
+ [0] = {
+ .start = CPHYSADDR(SD0_BASE),
+ .end = CPHYSADDR(SD0_BASE) + 0x40,
+ .flags = IORESOURCE_MEM,
+ },
+ [2] = {
+ .start = AU1200_SD_INT,
+ .flags = IORESOURCE_IRQ,
+ },
+ [3] = {
+ .start = DSCR_CMD0_SDMS_TX0,
+ .flags = IORESOURCE_DMA,
+ },
+ [4] = {
+ .start = DSCR_CMD0_SDMS_RX0,
+ .flags = IORESOURCE_DMA,
+ },
+};
+
+static struct platform_device au1xxx_sd0_device = {
+ .name = "au1xxx-mmc",
+ .id = 0, /* index into au1xmmc_card_table[] */
+ .dev = {
+ .dma_mask = &au1xxx_mmc_dmamask,
+ .coherent_dma_mask = 0xffffffff,
+ .platform_data = &db1xmmcpd,
+ },
+ .num_resources = ARRAY_SIZE(au1200sd0_res),
+ .resource = au1200sd0_res,
+};
+
+#ifndef CONFIG_MIPS_DB1200
+struct resource au1200sd1_res[] = {
+ [0] = {
+ .start = CPHYSADDR(SD1_BASE),
+ .end = CPHYSADDR(SD1_BASE) + 0xff,
+ .flags = IORESOURCE_MEM,
+ },
+ [2] = {
+ .start = AU1200_SD_INT,
+ .flags = IORESOURCE_IRQ,
+ },
+ [3] = {
+ .start = DSCR_CMD0_SDMS_TX1,
+ .flags = IORESOURCE_DMA,
+ },
+ [4] = {
+ .start = DSCR_CMD0_SDMS_RX1,
+ .flags = IORESOURCE_DMA,
+ },
+};
+
+static struct platform_device au1xxx_sd1_device = {
+ .name = "au1xxx-mmc",
+ .id = 1, /* index into au1xmmc_card_table[] */
+ .dev = {
+ .dma_mask = &au1xxx_mmc_dmamask,
+ .coherent_dma_mask = 0xffffffff,
+ .platform_data = &db1xmmcpd,
+ },
+ .num_resources = ARRAY_SIZE(au1200sd1_res),
+ .resource = au1200sd1_res,
+};
+#endif
+
static struct platform_device *board_platform_devices[] __initdata = {
&ide_device,
- &smc91c111_device
+ &smc91c111_device,
+ &au1xxx_sd0_device,
+#ifndef CONFIG_MIPS_DB1200
+ &au1xxx_sd1_device,
+#endif
};
static int __init board_register_devices(void)
diff --git a/drivers/mmc/host/au1xmmc.c b/drivers/mmc/host/au1xmmc.c
index cc5f7bc..da62bd2 100644
--- a/drivers/mmc/host/au1xmmc.c
+++ b/drivers/mmc/host/au1xmmc.c
@@ -49,7 +49,6 @@
#include <asm/mach-au1x00/au1100_mmc.h>
#include <au1xxx.h>
-#include "au1xmmc.h"
#define DRIVER_NAME "au1xxx-mmc"
@@ -61,31 +60,71 @@
#define DBG(fmt, idx, args...)
#endif
-const struct {
- u32 iobase;
- u32 tx_devid, rx_devid;
- u16 bcsrpwr;
- u16 bcsrstatus;
- u16 wpstatus;
-} au1xmmc_card_table[] = {
- { SD0_BASE, DSCR_CMD0_SDMS_TX0, DSCR_CMD0_SDMS_RX0,
- BCSR_BOARD_SD0PWR, BCSR_INT_SD0INSERT, BCSR_STATUS_SD0WP },
-#ifndef CONFIG_MIPS_DB1200
- { SD1_BASE, DSCR_CMD0_SDMS_TX1, DSCR_CMD0_SDMS_RX1,
- BCSR_BOARD_DS1PWR, BCSR_INT_SD1INSERT, BCSR_STATUS_SD1WP }
+#define AU1XMMC_DESCRIPTOR_COUNT 1
+#define AU1XMMC_DESCRIPTOR_SIZE 2048
+
+#define AU1XMMC_OCR ( MMC_VDD_27_28 | MMC_VDD_28_29 | MMC_VDD_29_30 | \
+ MMC_VDD_30_31 | MMC_VDD_31_32 | MMC_VDD_32_33 | \
+ MMC_VDD_33_34 | MMC_VDD_34_35 | MMC_VDD_35_36)
+
+/* Easy access macros */
+
+#define HOST_STATUS(h) ((h)->iobase + SD_STATUS)
+#define HOST_CONFIG(h) ((h)->iobase + SD_CONFIG)
+#define HOST_ENABLE(h) ((h)->iobase + SD_ENABLE)
+#define HOST_TXPORT(h) ((h)->iobase + SD_TXPORT)
+#define HOST_RXPORT(h) ((h)->iobase + SD_RXPORT)
+#define HOST_CMDARG(h) ((h)->iobase + SD_CMDARG)
+#define HOST_BLKSIZE(h) ((h)->iobase + SD_BLKSIZE)
+#define HOST_CMD(h) ((h)->iobase + SD_CMD)
+#define HOST_CONFIG2(h) ((h)->iobase + SD_CONFIG2)
+#define HOST_TIMEOUT(h) ((h)->iobase + SD_TIMEOUT)
+#define HOST_DEBUG(h) ((h)->iobase + SD_DEBUG)
+
+#define DMA_CHANNEL(h) \
+ ( ((h)->flags & HOST_F_XMIT) ? (h)->dma.tx_chan : (h)->dma.rx_chan)
+
+/* This gives us a hard value for the stop command that we can write directly
+ * to the command register
+ */
+
+#define STOP_CMD (SD_CMD_RT_1B|SD_CMD_CT_7|(0xC << SD_CMD_CI_SHIFT)|SD_CMD_GO)
+
+/* This is the set of interrupts that we configure by default */
+
+#if 0
+#define AU1XMMC_INTERRUPTS (SD_CONFIG_SC | SD_CONFIG_DT | SD_CONFIG_DD | \
+ SD_CONFIG_RAT | SD_CONFIG_CR | SD_CONFIG_I)
#endif
-};
-#define AU1XMMC_CONTROLLER_COUNT (ARRAY_SIZE(au1xmmc_card_table))
+#define AU1XMMC_INTERRUPTS (SD_CONFIG_SC | SD_CONFIG_DT | \
+ SD_CONFIG_RAT | SD_CONFIG_CR | SD_CONFIG_I)
+/* The poll event (looking for insert/remove events runs twice a second */
+#define AU1XMMC_DETECT_TIMEOUT (HZ/2)
+
+/* Status flags used by the host structure */
+#define HOST_F_XMIT 0x0001
+#define HOST_F_RECV 0x0002
+#define HOST_F_DMA 0x0010
+#define HOST_F_ACTIVE 0x0100
+#define HOST_F_STOP 0x1000
+
+#define HOST_S_IDLE 0x0001
+#define HOST_S_CMD 0x0002
+#define HOST_S_DATA 0x0003
+#define HOST_S_STOP 0x0004
-/* This array stores pointers for the hosts (used by the IRQ handler) */
-struct au1xmmc_host *au1xmmc_hosts[AU1XMMC_CONTROLLER_COUNT];
static int dma = 1;
-#ifdef MODULE
module_param(dma, bool, 0);
MODULE_PARM_DESC(dma, "Use DMA engine for data transfers (0 = disabled)");
-#endif
+
+/* 8bit memory device */
+static dbdev_tab_t au1xmmc_mem_dbdev = {
+ DSCR_CMD0_ALWAYS, DEV_FLAGS_ANYUSE, 0, 8, 0x00000000, 0, 0
+};
+static int memid = 0;
+
static inline void IRQ_ON(struct au1xmmc_host *host, u32 mask)
{
@@ -119,14 +158,13 @@ static inline void IRQ_OFF(struct au1xmmc_host *host, u32 mask)
static inline void SEND_STOP(struct au1xmmc_host *host)
{
-
- /* We know the value of CONFIG2, so avoid a read we don't need */
- u32 mask = SD_CONFIG2_EN;
+ u32 config2;
WARN_ON(host->status != HOST_S_DATA);
host->status = HOST_S_STOP;
- au_writel(mask | SD_CONFIG2_DF, HOST_CONFIG2(host));
+ config2 = au_readl(HOST_CONFIG2(host));
+ au_writel(config2 | SD_CONFIG2_DF, HOST_CONFIG2(host));
au_sync();
/* Send the stop commmand */
@@ -135,31 +173,37 @@ static inline void SEND_STOP(struct au1xmmc_host *host)
static void au1xmmc_set_power(struct au1xmmc_host *host, int state)
{
-
- u32 val = au1xmmc_card_table[host->id].bcsrpwr;
-
- bcsr->board &= ~val;
- if (state) bcsr->board |= val;
-
- au_sync_delay(1);
+ if (host->platdata && host->platdata->set_power)
+ host->platdata->set_power(host->mmc, state);
}
-static inline int au1xmmc_card_inserted(struct au1xmmc_host *host)
+static int au1xmmc_card_inserted(struct au1xmmc_host *host)
{
- return (bcsr->sig_status & au1xmmc_card_table[host->id].bcsrstatus)
- ? 1 : 0;
+ int ret;
+
+ if (host->platdata && host->platdata->card_inserted)
+ ret = host->platdata->card_readonly(host->mmc);
+ else
+ ret = 1; /* assume there is a card */
+
+ return ret;
}
static int au1xmmc_card_readonly(struct mmc_host *mmc)
{
struct au1xmmc_host *host = mmc_priv(mmc);
- return (bcsr->status & au1xmmc_card_table[host->id].wpstatus)
- ? 1 : 0;
+ int ret;
+
+ if (host->platdata && host->platdata->card_readonly)
+ ret = host->platdata->card_readonly(mmc);
+ else
+ ret = 1; /* assume card is read-only */
+
+ return ret;
}
static void au1xmmc_finish_request(struct au1xmmc_host *host)
{
-
struct mmc_request *mrq = host->mrq;
host->mrq = NULL;
@@ -174,14 +218,12 @@ static void au1xmmc_finish_request(struct au1xmmc_host *host)
host->status = HOST_S_IDLE;
- bcsr->disk_leds |= (1 << 8);
-
mmc_request_done(host->mmc, mrq);
}
static void au1xmmc_tasklet_finish(unsigned long param)
{
- struct au1xmmc_host *host = (struct au1xmmc_host *) param;
+ struct au1xmmc_host *host = (struct au1xmmc_host *)param;
au1xmmc_finish_request(host);
}
@@ -235,18 +277,16 @@ static int au1xmmc_send_command(struct au1xmmc_host *host, int wait,
au_sync();
/* Wait for the command to go on the line */
-
- while(1) {
+ while (1) {
if (!(au_readl(HOST_CMD(host)) & SD_CMD_GO))
break;
}
/* Wait for the command to come back */
-
if (wait) {
u32 status = au_readl(HOST_STATUS(host));
- while(!(status & SD_STATUS_CR))
+ while (!(status & SD_STATUS_CR))
status = au_readl(HOST_STATUS(host));
/* Clear the CR status */
@@ -260,7 +300,6 @@ static int au1xmmc_send_command(struct au1xmmc_host *host, int wait,
static void au1xmmc_data_complete(struct au1xmmc_host *host, u32 status)
{
-
struct mmc_request *mrq = host->mrq;
struct mmc_data *data;
u32 crc;
@@ -276,15 +315,13 @@ static void au1xmmc_data_complete(struct au1xmmc_host *host, u32 status)
status = au_readl(HOST_STATUS(host));
/* The transaction is really over when the SD_STATUS_DB bit is clear */
-
- while((host->flags & HOST_F_XMIT) && (status & SD_STATUS_DB))
+ while ((host->flags & HOST_F_XMIT) && (status & SD_STATUS_DB))
status = au_readl(HOST_STATUS(host));
data->error = 0;
dma_unmap_sg(mmc_dev(host->mmc), data->sg, data->sg_len, host->dma.dir);
/* Process any errors */
-
crc = (status & (SD_STATUS_WC | SD_STATUS_RC));
if (host->flags & HOST_F_XMIT)
crc |= ((status & 0x07) == 0x02) ? 0 : 1;
@@ -304,8 +341,7 @@ static void au1xmmc_data_complete(struct au1xmmc_host *host, u32 status)
chan_tab_t *c = *((chan_tab_t **) chan);
au1x_dma_chan_t *cp = c->chan_ptr;
data->bytes_xfered = cp->ddma_bytecnt;
- }
- else
+ } else
data->bytes_xfered =
(data->blocks * data->blksz) -
host->pio.len;
@@ -326,10 +362,9 @@ static void au1xmmc_tasklet_data(unsigned long param)
static void au1xmmc_send_pio(struct au1xmmc_host *host)
{
-
struct mmc_data *data = 0;
int sg_len, max, count = 0;
- unsigned char *sg_ptr;
+ unsigned char *sg_ptr, val;
u32 status = 0;
struct scatterlist *sg;
@@ -350,11 +385,8 @@ static void au1xmmc_send_pio(struct au1xmmc_host *host)
max = (sg_len > host->pio.len) ? host->pio.len : sg_len;
if (max > AU1XMMC_MAX_TRANSFER) max = AU1XMMC_MAX_TRANSFER;
- for(count = 0; count < max; count++ ) {
- unsigned char val;
-
+ for (count = 0; count < max; count++ ) {
status = au_readl(HOST_STATUS(host));
-
if (!(status & SD_STATUS_TH))
break;
@@ -384,7 +416,6 @@ static void au1xmmc_send_pio(struct au1xmmc_host *host)
static void au1xmmc_receive_pio(struct au1xmmc_host *host)
{
-
struct mmc_data *data = 0;
int sg_len = 0, max = 0, count = 0;
unsigned char *sg_ptr = 0;
@@ -412,7 +443,7 @@ static void au1xmmc_receive_pio(struct au1xmmc_host *host)
if (max > AU1XMMC_MAX_TRANSFER)
max = AU1XMMC_MAX_TRANSFER;
- for(count = 0; count < max; count++ ) {
+ for (count = 0; count < max; count++ ) {
u32 val;
status = au_readl(HOST_STATUS(host));
@@ -468,7 +499,6 @@ static void au1xmmc_receive_pio(struct au1xmmc_host *host)
static void au1xmmc_cmd_complete(struct au1xmmc_host *host, u32 status)
{
-
struct mmc_request *mrq = host->mrq;
struct mmc_command *cmd;
int trans;
@@ -493,7 +523,6 @@ static void au1xmmc_cmd_complete(struct au1xmmc_host *host, u32 status)
* we only got 120 bytes, but the engine expects
* 128 bits, so we have to shift things up
*/
-
for(i = 0; i < 4; i++) {
cmd->resp[i] = (r[i] & 0x00FFFFFF) << 8;
if (i != 3)
@@ -512,14 +541,12 @@ static void au1xmmc_cmd_complete(struct au1xmmc_host *host, u32 status)
}
/* Figure out errors */
-
if (status & (SD_STATUS_SC | SD_STATUS_WC | SD_STATUS_RC))
cmd->error = -EILSEQ;
trans = host->flags & (HOST_F_XMIT | HOST_F_RECV);
if (!trans || cmd->error) {
-
IRQ_OFF(host, SD_CONFIG_TH | SD_CONFIG_RA|SD_CONFIG_RF);
tasklet_schedule(&host->finish_task);
return;
@@ -531,21 +558,18 @@ static void au1xmmc_cmd_complete(struct au1xmmc_host *host, u32 status)
u32 channel = DMA_CHANNEL(host);
/* Start the DMA as soon as the buffer gets something in it */
-
if (host->flags & HOST_F_RECV) {
u32 mask = SD_STATUS_DB | SD_STATUS_NE;
- while((status & mask) != mask)
+ while ((status & mask) != mask)
status = au_readl(HOST_STATUS(host));
}
-
au1xxx_dbdma_start(channel);
}
}
static void au1xmmc_set_clock(struct au1xmmc_host *host, int rate)
{
-
unsigned int pbus = get_au1x00_speed();
unsigned int divisor;
u32 config;
@@ -571,7 +595,6 @@ static void au1xmmc_set_clock(struct au1xmmc_host *host, int rate)
static int
au1xmmc_prepare_data(struct au1xmmc_host *host, struct mmc_data *data)
{
-
int datalen = data->blocks * data->blksz;
if (dma != 0)
@@ -646,10 +669,6 @@ au1xmmc_prepare_data(struct au1xmmc_host *host, struct mmc_data *data)
return -ETIMEDOUT;
}
-/* static void au1xmmc_request
- This actually starts a command or data transaction
-*/
-
static void au1xmmc_request(struct mmc_host* mmc, struct mmc_request* mrq)
{
@@ -663,8 +682,6 @@ static void au1xmmc_request(struct mmc_host* mmc, struct mmc_request* mrq)
host->mrq = mrq;
host->status = HOST_S_CMD;
- bcsr->disk_leds &= ~(1 << 8);
-
if (mrq->data) {
FLUSH_FIFO(host);
flags = mrq->data->flags;
@@ -682,7 +699,6 @@ static void au1xmmc_request(struct mmc_host* mmc, struct mmc_request* mrq)
static void au1xmmc_reset_controller(struct au1xmmc_host *host)
{
-
/* Apply the clock */
au_writel(SD_ENABLE_CE, HOST_ENABLE(host));
au_sync_delay(1);
@@ -711,10 +727,10 @@ static void au1xmmc_reset_controller(struct au1xmmc_host *host)
au_sync();
}
-
-static void au1xmmc_set_ios(struct mmc_host* mmc, struct mmc_ios* ios)
+static void au1xmmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
{
struct au1xmmc_host *host = mmc_priv(mmc);
+ u32 config;
if (ios->power_mode == MMC_POWER_OFF)
au1xmmc_set_power(host, 0);
@@ -726,14 +742,25 @@ static void au1xmmc_set_ios(struct mmc_host* mmc, struct mmc_ios* ios)
au1xmmc_set_clock(host, ios->clock);
host->clock = ios->clock;
}
+
+ config = au_readl(HOST_CONFIG2(host));
+ switch (ios->bus_width) {
+ case MMC_BUS_WIDTH_4:
+ config |= (1 << 8);
+ break;
+ case MMC_BUS_WIDTH_1:
+ config &= ~(1 << 8);
+ break;
+ }
+ au_writel(config, HOST_CONFIG2(host));
+ au_sync();
}
static void au1xmmc_dma_callback(int irq, void *dev_id)
{
- struct au1xmmc_host *host = (struct au1xmmc_host *) dev_id;
+ struct au1xmmc_host *host = (struct au1xmmc_host *)dev_id;
/* Avoid spurious interrupts */
-
if (!host->mrq)
return;
@@ -749,118 +776,90 @@ static void au1xmmc_dma_callback(int irq, void *dev_id)
static irqreturn_t au1xmmc_irq(int irq, void *dev_id)
{
-
+ struct au1xmmc_host *host = dev_id;
u32 status;
- int i, ret = 0;
- disable_irq(AU1100_SD_IRQ);
+ status = au_readl(HOST_STATUS(host));
- for(i = 0; i < AU1XMMC_CONTROLLER_COUNT; i++) {
- struct au1xmmc_host * host = au1xmmc_hosts[i];
- u32 handled = 1;
+ if (!(status & (1<<15)))
+ return IRQ_NONE; /* not ours */
- status = au_readl(HOST_STATUS(host));
-
- if (host->mrq && (status & STATUS_TIMEOUT)) {
- if (status & SD_STATUS_RAT)
- host->mrq->cmd->error = -ETIMEDOUT;
-
- else if (status & SD_STATUS_DT)
- host->mrq->data->error = -ETIMEDOUT;
+ if (host->mrq && (status & STATUS_TIMEOUT)) {
+ if (status & SD_STATUS_RAT)
+ host->mrq->cmd->error = -ETIMEDOUT;
+ else if (status & SD_STATUS_DT)
+ host->mrq->data->error = -ETIMEDOUT;
- /* In PIO mode, interrupts might still be enabled */
- IRQ_OFF(host, SD_CONFIG_NE | SD_CONFIG_TH);
+ /* In PIO mode, interrupts might still be enabled */
+ IRQ_OFF(host, SD_CONFIG_NE | SD_CONFIG_TH);
- //IRQ_OFF(host, SD_CONFIG_TH|SD_CONFIG_RA|SD_CONFIG_RF);
- tasklet_schedule(&host->finish_task);
- }
+ //IRQ_OFF(host, SD_CONFIG_TH|SD_CONFIG_RA|SD_CONFIG_RF);
+ tasklet_schedule(&host->finish_task);
+ }
#if 0
- else if (status & SD_STATUS_DD) {
-
- /* Sometimes we get a DD before a NE in PIO mode */
-
- if (!(host->flags & HOST_F_DMA) &&
- (status & SD_STATUS_NE))
- au1xmmc_receive_pio(host);
- else {
- au1xmmc_data_complete(host, status);
- //tasklet_schedule(&host->data_task);
- }
+ else if (status & SD_STATUS_DD) {
+ /* Sometimes we get a DD before a NE in PIO mode */
+ if (!(host->flags & HOST_F_DMA) && (status & SD_STATUS_NE))
+ au1xmmc_receive_pio(host);
+ else {
+ au1xmmc_data_complete(host, status);
+ //tasklet_schedule(&host->data_task);
}
+ }
#endif
- else if (status & (SD_STATUS_CR)) {
- if (host->status == HOST_S_CMD)
- au1xmmc_cmd_complete(host,status);
- }
- else if (!(host->flags & HOST_F_DMA)) {
- if ((host->flags & HOST_F_XMIT) &&
- (status & STATUS_DATA_OUT))
- au1xmmc_send_pio(host);
- else if ((host->flags & HOST_F_RECV) &&
- (status & STATUS_DATA_IN))
- au1xmmc_receive_pio(host);
- }
- else if (status & 0x203FBC70) {
- DBG("Unhandled status %8.8x\n", host->id, status);
- handled = 0;
- }
-
- au_writel(status, HOST_STATUS(host));
- au_sync();
+ else if (status & (SD_STATUS_CR)) {
+ if (host->status == HOST_S_CMD)
+ au1xmmc_cmd_complete(host,status);
- ret |= handled;
- }
+ } else if (!(host->flags & HOST_F_DMA)) {
+ if ((host->flags & HOST_F_XMIT) && (status & STATUS_DATA_OUT))
+ au1xmmc_send_pio(host);
+ else if ((host->flags & HOST_F_RECV) && (status & STATUS_DATA_IN))
+ au1xmmc_receive_pio(host);
- enable_irq(AU1100_SD_IRQ);
- return ret;
-}
+ } else if (status & 0x80000000) {
+ mmc_signal_sdio_irq(host->mmc);
-static void au1xmmc_poll_event(unsigned long arg)
-{
- struct au1xmmc_host *host = (struct au1xmmc_host *) arg;
-
- int card = au1xmmc_card_inserted(host);
- int controller = (host->flags & HOST_F_ACTIVE) ? 1 : 0;
-
- if (card != controller) {
- host->flags &= ~HOST_F_ACTIVE;
- if (card) host->flags |= HOST_F_ACTIVE;
- mmc_detect_change(host->mmc, 0);
+ } else if (status & 0x203FBC70) {
+ DBG("Unhandled status %8.8x\n", host->id, status);
}
- if (host->mrq != NULL) {
- u32 status = au_readl(HOST_STATUS(host));
- DBG("PENDING - %8.8x\n", host->id, status);
- }
+ au_writel(status, HOST_STATUS(host));
+ au_sync();
- mod_timer(&host->timer, jiffies + AU1XMMC_DETECT_TIMEOUT);
+ return IRQ_HANDLED;
}
-static dbdev_tab_t au1xmmc_mem_dbdev =
+static int au1xmmc_init_dma(struct au1xmmc_host *host)
{
- DSCR_CMD0_ALWAYS, DEV_FLAGS_ANYUSE, 0, 8, 0x00000000, 0, 0
-};
-
-static void au1xmmc_init_dma(struct au1xmmc_host *host)
-{
-
+ struct resource *res;
u32 rxchan, txchan;
+ int txid, rxid;
- int txid = au1xmmc_card_table[host->id].tx_devid;
- int rxid = au1xmmc_card_table[host->id].rx_devid;
+ res = platform_get_resource(host->pdev, IORESOURCE_DMA, 0);
+ if (!res)
+ return -ENODEV;
+ txid = res->start;
- /* DSCR_CMD0_ALWAYS has a stride of 32 bits, we need a stride
- of 8 bits. And since devices are shared, we need to create
- our own to avoid freaking out other devices
- */
-
- int memid = au1xxx_ddma_add_device(&au1xmmc_mem_dbdev);
+ res = platform_get_resource(host->pdev, IORESOURCE_DMA, 1);
+ if (!res)
+ return -ENODEV;
+ rxid = res->start;
txchan = au1xxx_dbdma_chan_alloc(memid, txid,
- au1xmmc_dma_callback, (void *) host);
+ au1xmmc_dma_callback, (void *)host);
+ if (!txchan) {
+ dev_err(&host->pdev->dev, "cannot allocate TX DMA\n");
+ return -ENODEV;
+ }
rxchan = au1xxx_dbdma_chan_alloc(rxid, memid,
- au1xmmc_dma_callback, (void *) host);
+ au1xmmc_dma_callback, (void *)host);
+ if (!rxchan) {
+ dev_err(&host->pdev->dev, "cannot allocate RX DMA\n");
+ au1xxx_dbdma_chan_free(txchan);
+ return -ENODEV;
+ }
au1xxx_dbdma_set_devwidth(txchan, 8);
au1xxx_dbdma_set_devwidth(rxchan, 8);
@@ -868,126 +867,219 @@ static void au1xmmc_init_dma(struct au1xmmc_host *host)
au1xxx_dbdma_ring_alloc(txchan, AU1XMMC_DESCRIPTOR_COUNT);
au1xxx_dbdma_ring_alloc(rxchan, AU1XMMC_DESCRIPTOR_COUNT);
- host->tx_chan = txchan;
- host->rx_chan = rxchan;
+ host->dma.tx_chan = txchan;
+ host->dma.rx_chan = rxchan;
+
+ return 0;
+}
+
+static void au1xmmc_enable_sdio_irq(struct mmc_host *mmc, int en)
+{
+ struct au1xmmc_host *host = mmc_priv(mmc);
+
+ if (en)
+ IRQ_ON(host, (1<<31));
+ else
+ IRQ_OFF(host, (1<<31));
}
static const struct mmc_host_ops au1xmmc_ops = {
.request = au1xmmc_request,
.set_ios = au1xmmc_set_ios,
.get_ro = au1xmmc_card_readonly,
+ .enable_sdio_irq= au1xmmc_enable_sdio_irq,
};
-static int __devinit au1xmmc_probe(struct platform_device *pdev)
+static void au1xmmc_poll_event(unsigned long arg)
{
+ struct au1xmmc_host *host = (struct au1xmmc_host *)arg;
+ u32 status;
- int i, ret = 0;
+ int card = au1xmmc_card_inserted(host);
+ int controller = (host->flags & HOST_F_ACTIVE) ? 1 : 0;
- /* THe interrupt is shared among all controllers */
- ret = request_irq(AU1100_SD_IRQ, au1xmmc_irq, IRQF_DISABLED, "MMC", 0);
+ if (card != controller) {
+ host->flags &= ~HOST_F_ACTIVE;
+ if (card)
+ host->flags |= HOST_F_ACTIVE;
+ mmc_detect_change(host->mmc, 0);
+ }
- if (ret) {
- printk(DRIVER_NAME "ERROR: Couldn't get int %d: %d\n",
- AU1100_SD_IRQ, ret);
- return -ENXIO;
+ if (host->mrq != NULL) {
+ status = au_readl(HOST_STATUS(host));
+ DBG("PENDING - %8.8x\n", host->id, status);
}
- disable_irq(AU1100_SD_IRQ);
+ mod_timer(&host->timer, jiffies + AU1XMMC_DETECT_TIMEOUT);
+}
- for(i = 0; i < AU1XMMC_CONTROLLER_COUNT; i++) {
- struct mmc_host *mmc = mmc_alloc_host(sizeof(struct au1xmmc_host), &pdev->dev);
- struct au1xmmc_host *host = 0;
+static void au1xmmc_init_cd_poll_timer(struct au1xmmc_host *host)
+{
+ init_timer(&host->timer);
+ host->timer.function = au1xmmc_poll_event;
+ host->timer.data = (unsigned long)host;
+ host->timer.expires = jiffies + AU1XMMC_DETECT_TIMEOUT;
+ add_timer(&host->timer);
+}
- if (!mmc) {
- printk(DRIVER_NAME "ERROR: no mem for host %d\n", i);
- au1xmmc_hosts[i] = 0;
- continue;
- }
+static int __devinit au1xmmc_probe(struct platform_device *pdev)
+{
+ struct mmc_host *mmc;
+ struct au1xmmc_host *host;
+ struct resource *r;
+ int ret;
+
+ mmc = mmc_alloc_host(sizeof(struct au1xmmc_host), &pdev->dev);
+ if (!mmc) {
+ dev_err(&pdev->dev, "no memory for mmc host\n");
+ ret = -ENOMEM;
+ goto out0;
+ }
- mmc->ops = &au1xmmc_ops;
+ host = mmc_priv(mmc);
+ host->mmc = mmc;
+ host->platdata = pdev->dev.platform_data;
+ host->pdev = pdev;
- mmc->f_min = 450000;
- mmc->f_max = 24000000;
+ ret = -ENODEV;
+ r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!r) {
+ dev_err(&pdev->dev, "no mmio defined\n");
+ goto out1;
+ }
+ host->iobase = (unsigned long)ioremap(r->start, 0xff);
+ if (!host->iobase) {
+ dev_err(&pdev->dev, "cannot remap mmio\n");
+ goto out1;
+ }
- mmc->max_seg_size = AU1XMMC_DESCRIPTOR_SIZE;
- mmc->max_phys_segs = AU1XMMC_DESCRIPTOR_COUNT;
+ r = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (!r) {
+ dev_err(&pdev->dev, "no IRQ defined\n");
+ goto out2;
+ }
- mmc->max_blk_size = 2048;
- mmc->max_blk_count = 512;
+ host->irq = r->start;
+ /* IRQ is shared among both SD controllers */
+ ret = request_irq(host->irq, au1xmmc_irq, IRQF_SHARED,
+ DRIVER_NAME, host);
+ if (ret) {
+ dev_err(&pdev->dev, "cannot grab IRQ\n");
+ goto out2;
+ }
- mmc->ocr_avail = AU1XMMC_OCR;
+ mmc->ops = &au1xmmc_ops;
- host = mmc_priv(mmc);
- host->mmc = mmc;
+ mmc->f_min = 450000;
+ mmc->f_max = 24000000;
- host->id = i;
- host->iobase = au1xmmc_card_table[host->id].iobase;
- host->clock = 0;
- host->power_mode = MMC_POWER_OFF;
+ mmc->max_seg_size = AU1XMMC_DESCRIPTOR_SIZE;
+ mmc->max_phys_segs = AU1XMMC_DESCRIPTOR_COUNT;
- host->flags = au1xmmc_card_inserted(host) ? HOST_F_ACTIVE : 0;
- host->status = HOST_S_IDLE;
+ mmc->max_blk_size = 2048;
+ mmc->max_blk_count = 512;
- init_timer(&host->timer);
+ mmc->ocr_avail = AU1XMMC_OCR;
+ mmc->caps = MMC_CAP_SDIO_IRQ /* | MMC_CAP_4_BIT_DATA borked */;
- host->timer.function = au1xmmc_poll_event;
- host->timer.data = (unsigned long) host;
- host->timer.expires = jiffies + AU1XMMC_DETECT_TIMEOUT;
+ host->clock = 0;
+ host->id = pdev->id;
+ host->status = HOST_S_IDLE;
- tasklet_init(&host->data_task, au1xmmc_tasklet_data,
- (unsigned long) host);
+ /* board-specific carddetect setup, if any */
+ if (host->platdata && host->platdata->cd_setup) {
+ ret = host->platdata->cd_setup(mmc, 1);
+ if (ret) {
+ dev_err(&pdev->dev, "board CD setup failed\n");
+ goto out3;
+ }
+ } else {
+ /* poll the board-specific card-is-in-socket method */
+ au1xmmc_init_cd_poll_timer(host);
+ host->flags = au1xmmc_card_inserted(host) ? HOST_F_ACTIVE : 0;
+ }
- tasklet_init(&host->finish_task, au1xmmc_tasklet_finish,
- (unsigned long) host);
+ tasklet_init(&host->data_task, au1xmmc_tasklet_data,
+ (unsigned long)host);
- spin_lock_init(&host->lock);
+ tasklet_init(&host->finish_task, au1xmmc_tasklet_finish,
+ (unsigned long)host);
- if (dma != 0)
- au1xmmc_init_dma(host);
+ if (dma) {
+ ret = au1xmmc_init_dma(host);
+ if (ret)
+ goto out4;
+ }
- au1xmmc_reset_controller(host);
+ au1xmmc_reset_controller(host);
- mmc_add_host(mmc);
- au1xmmc_hosts[i] = host;
+ ret = mmc_add_host(mmc);
+ if (ret) {
+ dev_err(&pdev->dev, "cannot add mmc host\n");
+ goto out5;
+ }
- add_timer(&host->timer);
+ platform_set_drvdata(pdev, mmc);
- printk(KERN_INFO DRIVER_NAME ": MMC Controller %d set up at %8.8X (mode=%s)\n",
- host->id, host->iobase, dma ? "dma" : "pio");
- }
+ printk(KERN_INFO DRIVER_NAME ": MMC Controller %d set up at %8.8X (mode=%s)\n",
+ pdev->id, host->iobase, dma ? "dma" : "pio");
- enable_irq(AU1100_SD_IRQ);
+ return 0; /* all ok */
- return 0;
+out5:
+ if (dma) {
+ au1xxx_dbdma_chan_free(host->dma.tx_chan);
+ au1xxx_dbdma_chan_free(host->dma.rx_chan);
+ }
+out4:
+ tasklet_kill(&host->data_task);
+ tasklet_kill(&host->finish_task);
+
+ if (host->platdata && host->platdata->cd_setup)
+ host->platdata->cd_setup(mmc, 0);
+ else
+ del_timer_sync(&host->timer);
+out3:
+ free_irq(host->irq, host);
+out2:
+ iounmap((void *)host->iobase);
+out1:
+ mmc_free_host(mmc);
+out0:
+ return ret;
}
static int __devexit au1xmmc_remove(struct platform_device *pdev)
{
+ struct mmc_host *mmc = platform_get_drvdata(pdev);
+ struct au1xmmc_host *host;
- int i;
-
- disable_irq(AU1100_SD_IRQ);
+ if (mmc) {
+ host = mmc_priv(mmc);
- for(i = 0; i < AU1XMMC_CONTROLLER_COUNT; i++) {
- struct au1xmmc_host *host = au1xmmc_hosts[i];
- if (!host) continue;
+ au_writel(0, HOST_ENABLE(host));
+ au_writel(0, HOST_CONFIG(host));
+ au_sync();
tasklet_kill(&host->data_task);
tasklet_kill(&host->finish_task);
- del_timer_sync(&host->timer);
+ if (host->platdata && host->platdata->cd_setup)
+ host->platdata->cd_setup(mmc, 0);
+ else
+ del_timer_sync(&host->timer);
+
au1xmmc_set_power(host, 0);
- mmc_remove_host(host->mmc);
+ free_irq(host->irq, host);
- au1xxx_dbdma_chan_free(host->tx_chan);
- au1xxx_dbdma_chan_free(host->rx_chan);
+ mmc_remove_host(host->mmc);
- au_writel(0x0, HOST_ENABLE(host));
- au_sync();
+ if (dma) {
+ au1xxx_dbdma_chan_free(host->dma.tx_chan);
+ au1xxx_dbdma_chan_free(host->dma.rx_chan);
+ }
}
-
- free_irq(AU1100_SD_IRQ, 0);
return 0;
}
@@ -1004,6 +1096,18 @@ static struct platform_driver au1xmmc_driver = {
static int __init au1xmmc_init(void)
{
+ if (dma) {
+ /* DSCR_CMD0_ALWAYS has a stride of 32 bits, we need a stride
+ of 8 bits. And since devices are shared, we need to create
+ our own to avoid freaking out other devices
+ */
+ if (!memid)
+ memid = au1xxx_ddma_add_device(&au1xmmc_mem_dbdev);
+ if (!memid) {
+ printk(KERN_ERR "au1xmmc: cannot add memory dma dev\n");
+ return -ENODEV;
+ }
+ }
return platform_driver_register(&au1xmmc_driver);
}
@@ -1015,10 +1119,7 @@ static void __exit au1xmmc_exit(void)
module_init(au1xmmc_init);
module_exit(au1xmmc_exit);
-#ifdef MODULE
MODULE_AUTHOR("Advanced Micro Devices, Inc");
MODULE_DESCRIPTION("MMC/SD driver for the Alchemy Au1XXX");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:au1xxx-mmc");
-#endif
-
diff --git a/drivers/mmc/host/au1xmmc.h b/drivers/mmc/host/au1xmmc.h
deleted file mode 100644
index 341cbdf..0000000
--- a/drivers/mmc/host/au1xmmc.h
+++ /dev/null
@@ -1,96 +0,0 @@
-#ifndef _AU1XMMC_H_
-#define _AU1XMMC_H_
-
-/* Hardware definitions */
-
-#define AU1XMMC_DESCRIPTOR_COUNT 1
-#define AU1XMMC_DESCRIPTOR_SIZE 2048
-
-#define AU1XMMC_OCR ( MMC_VDD_27_28 | MMC_VDD_28_29 | MMC_VDD_29_30 | \
- MMC_VDD_30_31 | MMC_VDD_31_32 | MMC_VDD_32_33 | \
- MMC_VDD_33_34 | MMC_VDD_34_35 | MMC_VDD_35_36)
-
-/* Easy access macros */
-
-#define HOST_STATUS(h) ((h)->iobase + SD_STATUS)
-#define HOST_CONFIG(h) ((h)->iobase + SD_CONFIG)
-#define HOST_ENABLE(h) ((h)->iobase + SD_ENABLE)
-#define HOST_TXPORT(h) ((h)->iobase + SD_TXPORT)
-#define HOST_RXPORT(h) ((h)->iobase + SD_RXPORT)
-#define HOST_CMDARG(h) ((h)->iobase + SD_CMDARG)
-#define HOST_BLKSIZE(h) ((h)->iobase + SD_BLKSIZE)
-#define HOST_CMD(h) ((h)->iobase + SD_CMD)
-#define HOST_CONFIG2(h) ((h)->iobase + SD_CONFIG2)
-#define HOST_TIMEOUT(h) ((h)->iobase + SD_TIMEOUT)
-#define HOST_DEBUG(h) ((h)->iobase + SD_DEBUG)
-
-#define DMA_CHANNEL(h) \
- ( ((h)->flags & HOST_F_XMIT) ? (h)->tx_chan : (h)->rx_chan)
-
-/* This gives us a hard value for the stop command that we can write directly
- * to the command register
- */
-
-#define STOP_CMD (SD_CMD_RT_1B|SD_CMD_CT_7|(0xC << SD_CMD_CI_SHIFT)|SD_CMD_GO)
-
-/* This is the set of interrupts that we configure by default */
-
-#if 0
-#define AU1XMMC_INTERRUPTS (SD_CONFIG_SC | SD_CONFIG_DT | SD_CONFIG_DD | \
- SD_CONFIG_RAT | SD_CONFIG_CR | SD_CONFIG_I)
-#endif
-
-#define AU1XMMC_INTERRUPTS (SD_CONFIG_SC | SD_CONFIG_DT | \
- SD_CONFIG_RAT | SD_CONFIG_CR | SD_CONFIG_I)
-/* The poll event (looking for insert/remove events runs twice a second */
-#define AU1XMMC_DETECT_TIMEOUT (HZ/2)
-
-struct au1xmmc_host {
- struct mmc_host *mmc;
- struct mmc_request *mrq;
-
- u32 id;
-
- u32 flags;
- u32 iobase;
- u32 clock;
- u32 bus_width;
- u32 power_mode;
-
- int status;
-
- struct {
- int len;
- int dir;
- } dma;
-
- struct {
- int index;
- int offset;
- int len;
- } pio;
-
- u32 tx_chan;
- u32 rx_chan;
-
- struct timer_list timer;
- struct tasklet_struct finish_task;
- struct tasklet_struct data_task;
-
- spinlock_t lock;
-};
-
-/* Status flags used by the host structure */
-
-#define HOST_F_XMIT 0x0001
-#define HOST_F_RECV 0x0002
-#define HOST_F_DMA 0x0010
-#define HOST_F_ACTIVE 0x0100
-#define HOST_F_STOP 0x1000
-
-#define HOST_S_IDLE 0x0001
-#define HOST_S_CMD 0x0002
-#define HOST_S_DATA 0x0003
-#define HOST_S_STOP 0x0004
-
-#endif
diff --git a/include/asm-mips/mach-au1x00/au1100_mmc.h b/include/asm-mips/mach-au1x00/au1100_mmc.h
index 9e0028f..6474fac 100644
--- a/include/asm-mips/mach-au1x00/au1100_mmc.h
+++ b/include/asm-mips/mach-au1x00/au1100_mmc.h
@@ -38,15 +38,46 @@
#ifndef __ASM_AU1100_MMC_H
#define __ASM_AU1100_MMC_H
-
-#define NUM_AU1100_MMC_CONTROLLERS 2
-
-#if defined(CONFIG_SOC_AU1100)
-#define AU1100_SD_IRQ AU1100_SD_INT
-#elif defined(CONFIG_SOC_AU1200)
-#define AU1100_SD_IRQ AU1200_SD_INT
-#endif
-
+struct au1xmmc_platdata {
+ int(*cd_setup)(void *mmc_host, int on);
+ int(*card_inserted)(void *mmc_host);
+ int(*card_readonly)(void *mmc_host);
+ void(*set_power)(void *mmc_host, int state);
+};
+
+struct au1xmmc_host {
+ struct mmc_host *mmc;
+ struct mmc_request *mrq;
+
+ u32 id;
+
+ u32 flags;
+ u32 iobase;
+ u32 clock;
+
+ int status;
+
+ struct {
+ int len;
+ int dir;
+ u32 tx_chan;
+ u32 rx_chan;
+ } dma;
+
+ struct {
+ int index;
+ int offset;
+ int len;
+ } pio;
+
+ struct timer_list timer;
+ struct tasklet_struct finish_task;
+ struct tasklet_struct data_task;
+
+ struct platform_device *pdev;
+ struct au1xmmc_platdata *platdata;
+ int irq;
+};
#define SD0_BASE 0xB0600000
#define SD1_BASE 0xB0680000
--
1.5.5.1
[Linux MIPS Home] [Kernel list] [Linux ARM list] [Linux] [Git] [Photo] [Yosemite News] [MIPS Architecture] [Linux SCSI] [Linux Hams] [Site Home]
|