Au1[12]00 mmc driver. Only tested on the Au1200 at this point though
it should work on the Au1100 as well. Updated defconfig to include driver. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Pete Popov
Ralf Baechle
parent
bab056aafe
commit
ba264b3403
|
|
@ -7,6 +7,7 @@
|
|||
* License version 2. This program is licensed "as is" without any
|
||||
* warranty of any kind, whether express or implied.
|
||||
*/
|
||||
#include <linux/config.h>
|
||||
#include <linux/device.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/init.h>
|
||||
|
|
@ -114,6 +115,24 @@ 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 = {
|
||||
|
|
@ -207,6 +226,20 @@ static struct platform_device au1200_ide0_device = {
|
|||
.resource = au1200_ide0_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 = {
|
||||
.name = "au1x00-pcmcia",
|
||||
.id = 0,
|
||||
|
|
@ -226,6 +259,7 @@ static struct platform_device *au1xxx_platform_devices[] __initdata = {
|
|||
&au1xxx_usb_otg_device,
|
||||
&au1200_lcd_device,
|
||||
&au1200_ide0_device,
|
||||
&au1xxx_mmc_device,
|
||||
#endif
|
||||
};
|
||||
|
||||
|
|
|
|||
|
|
@ -60,4 +60,13 @@ config MMC_WBSD
|
|||
|
||||
If unsure, say N.
|
||||
|
||||
config MMC_AU1X
|
||||
tristate "Alchemy AU1XX0 MMC Card Interface support"
|
||||
depends on SOC_AU1X00 && MMC
|
||||
help
|
||||
This selects the AMD Alchemy(R) Multimedia card interface.
|
||||
iIf you have a Alchemy platform with a MMC slot, say Y or M here.
|
||||
|
||||
If unsure, say N.
|
||||
|
||||
endmenu
|
||||
|
|
|
|||
|
|
@ -18,5 +18,6 @@ obj-$(CONFIG_MMC_BLOCK) += mmc_block.o
|
|||
obj-$(CONFIG_MMC_ARMMMCI) += mmci.o
|
||||
obj-$(CONFIG_MMC_PXA) += pxamci.o
|
||||
obj-$(CONFIG_MMC_WBSD) += wbsd.o
|
||||
obj-$(CONFIG_MMC_AU1X) += au1xmmc.o
|
||||
|
||||
mmc_core-y := mmc.o mmc_queue.o mmc_sysfs.o
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,96 @@
|
|||
#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
|
||||
Reference in New Issue