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bcma: register platform device for parallel flash 

Signed-off-by: John W. Linville <linville@tuxdriver.com>
hifive-unleashed-5.1
Rafał Miłecki 2013-01-25 11:37:26 +01:00 committed by John W. Linville
parent c7a4a9e388
commit 73e4dbe4ca
3 changed files with 42 additions and 5 deletions
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1
drivers/bcma/bcma_private.h
View File

@ -47,6 +47,7 @@ int bcma_sprom_get(struct bcma_bus *bus);
/* driver_chipcommon.c */
#ifdef CONFIG_BCMA_DRIVER_MIPS
void bcma_chipco_serial_init(struct bcma_drv_cc *cc);
extern struct platform_device bcma_pflash_dev;
#endif /* CONFIG_BCMA_DRIVER_MIPS */
/* driver_chipcommon_pmu.c */

38
drivers/bcma/driver_mips.c
View File

@ -14,11 +14,33 @@
#include <linux/bcma/bcma.h>
#include <linux/mtd/physmap.h>
#include <linux/platform_device.h>
#include <linux/serial.h>
#include <linux/serial_core.h>
#include <linux/serial_reg.h>
#include <linux/time.h>
static const char *part_probes[] = { "bcm47xxpart", NULL };
static struct physmap_flash_data bcma_pflash_data = {
.part_probe_types = part_probes,
};
static struct resource bcma_pflash_resource = {
.name = "bcma_pflash",
.flags = IORESOURCE_MEM,
};
struct platform_device bcma_pflash_dev = {
.name = "physmap-flash",
.dev = {
.platform_data = &bcma_pflash_data,
},
.resource = &bcma_pflash_resource,
.num_resources = 1,
};
/* The 47162a0 hangs when reading MIPS DMP registers registers */
static inline bool bcma_core_mips_bcm47162a0_quirk(struct bcma_device *dev)
{
@ -211,6 +233,7 @@ static void bcma_core_mips_flash_detect(struct bcma_drv_mips *mcore)
{
struct bcma_bus *bus = mcore->core->bus;
struct bcma_drv_cc *cc = &bus->drv_cc;
struct bcma_pflash *pflash = &cc->pflash;
switch (cc->capabilities & BCMA_CC_CAP_FLASHT) {
case BCMA_CC_FLASHT_STSER:
@ -220,15 +243,20 @@ static void bcma_core_mips_flash_detect(struct bcma_drv_mips *mcore)
break;
case BCMA_CC_FLASHT_PARA:
bcma_debug(bus, "Found parallel flash\n");
cc->pflash.present = true;
cc->pflash.window = BCMA_SOC_FLASH2;
cc->pflash.window_size = BCMA_SOC_FLASH2_SZ;
pflash->present = true;
pflash->window = BCMA_SOC_FLASH2;
pflash->window_size = BCMA_SOC_FLASH2_SZ;
if ((bcma_read32(cc->core, BCMA_CC_FLASH_CFG) &
BCMA_CC_FLASH_CFG_DS) == 0)
cc->pflash.buswidth = 1;
pflash->buswidth = 1;
else
cc->pflash.buswidth = 2;
pflash->buswidth = 2;
bcma_pflash_data.width = pflash->buswidth;
bcma_pflash_resource.start = pflash->window;
bcma_pflash_resource.end = pflash->window + pflash->window_size;
break;
default:
bcma_err(bus, "Flash type not supported\n");

8
drivers/bcma/main.c
View File

@ -149,6 +149,14 @@ static int bcma_register_cores(struct bcma_bus *bus)
dev_id++;
}
#ifdef CONFIG_BCMA_DRIVER_MIPS
if (bus->drv_cc.pflash.present) {
err = platform_device_register(&bcma_pflash_dev);
if (err)
bcma_err(bus, "Error registering parallel flash\n");
}
#endif
#ifdef CONFIG_BCMA_SFLASH
if (bus->drv_cc.sflash.present) {
err = platform_device_register(&bcma_sflash_dev);