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bcma: add place for flash memory support

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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rafał Miłecki 2012-07-17 16:26:41 +02:00 committed by John W. Linville
parent 124b979bae
commit 23cb3b2121
6 changed files with 84 additions and 3 deletions
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10
drivers/bcma/Kconfig
View file

@ -46,6 +46,16 @@ config BCMA_DRIVER_MIPS
If unsure, say N
config BCMA_SFLASH
bool
depends on BCMA_DRIVER_MIPS && BROKEN
default y
config BCMA_NFLASH
bool
depends on BCMA_DRIVER_MIPS && BROKEN
default y
config BCMA_DRIVER_GMAC_CMN
bool "BCMA Broadcom GBIT MAC COMMON core driver"
depends on BCMA

2
drivers/bcma/Makefile
View file

@ -1,5 +1,7 @@
bcma-y += main.o scan.o core.o sprom.o
bcma-y += driver_chipcommon.o driver_chipcommon_pmu.o
bcma-$(CONFIG_BCMA_SFLASH) += driver_chipcommon_sflash.o
bcma-$(CONFIG_BCMA_NFLASH) += driver_chipcommon_nflash.o
bcma-y += driver_pci.o
bcma-$(CONFIG_BCMA_DRIVER_PCI_HOSTMODE) += driver_pci_host.o
bcma-$(CONFIG_BCMA_DRIVER_MIPS) += driver_mips.o

22
drivers/bcma/bcma_private.h
View file

@ -51,6 +51,28 @@ void bcma_chipco_serial_init(struct bcma_drv_cc *cc);
u32 bcma_pmu_alp_clock(struct bcma_drv_cc *cc);
u32 bcma_pmu_get_clockcpu(struct bcma_drv_cc *cc);
#ifdef CONFIG_BCMA_SFLASH
/* driver_chipcommon_sflash.c */
int bcma_sflash_init(struct bcma_drv_cc *cc);
#else
static inline int bcma_sflash_init(struct bcma_drv_cc *cc)
{
bcma_err(cc->core->bus, "Serial flash not supported\n");
return 0;
}
#endif /* CONFIG_BCMA_SFLASH */
#ifdef CONFIG_BCMA_NFLASH
/* driver_chipcommon_nflash.c */
int bcma_nflash_init(struct bcma_drv_cc *cc);
#else
static inline int bcma_nflash_init(struct bcma_drv_cc *cc)
{
bcma_err(cc->core->bus, "NAND flash not supported\n");
return 0;
}
#endif /* CONFIG_BCMA_NFLASH */
#ifdef CONFIG_BCMA_HOST_PCI
/* host_pci.c */
extern int __init bcma_host_pci_init(void);

19
drivers/bcma/driver_chipcommon_nflash.c Normal file
View file

@ -0,0 +1,19 @@
/*
* Broadcom specific AMBA
* ChipCommon NAND flash interface
*
* Licensed under the GNU/GPL. See COPYING for details.
*/
#include <linux/bcma/bcma.h>
#include <linux/bcma/bcma_driver_chipcommon.h>
#include <linux/delay.h>
#include "bcma_private.h"
/* Initialize NAND flash access */
int bcma_nflash_init(struct bcma_drv_cc *cc)
{
bcma_err(cc->core->bus, "NAND flash support is broken\n");
return 0;
}

19
drivers/bcma/driver_chipcommon_sflash.c Normal file
View file

@ -0,0 +1,19 @@
/*
* Broadcom specific AMBA
* ChipCommon serial flash interface
*
* Licensed under the GNU/GPL. See COPYING for details.
*/
#include <linux/bcma/bcma.h>
#include <linux/bcma/bcma_driver_chipcommon.h>
#include <linux/delay.h>
#include "bcma_private.h"
/* Initialize serial flash access */
int bcma_sflash_init(struct bcma_drv_cc *cc)
{
bcma_err(cc->core->bus, "Serial flash support is broken\n");
return 0;
}

15
drivers/bcma/driver_mips.c
View file

@ -185,10 +185,11 @@ static void bcma_core_mips_flash_detect(struct bcma_drv_mips *mcore)
switch (bus->drv_cc.capabilities & BCMA_CC_CAP_FLASHT) {
case BCMA_CC_FLASHT_STSER:
case BCMA_CC_FLASHT_ATSER:
bcma_err(bus, "Serial flash not supported.\n");
bcma_debug(bus, "Found serial flash\n");
bcma_sflash_init(&bus->drv_cc);
break;
case BCMA_CC_FLASHT_PARA:
bcma_info(bus, "found parallel flash.\n");
bcma_debug(bus, "Found parallel flash\n");
bus->drv_cc.pflash.window = 0x1c000000;
bus->drv_cc.pflash.window_size = 0x02000000;
@ -199,7 +200,15 @@ static void bcma_core_mips_flash_detect(struct bcma_drv_mips *mcore)
bus->drv_cc.pflash.buswidth = 2;
break;
default:
bcma_err(bus, "flash not supported.\n");
bcma_err(bus, "Flash type not supported\n");
}
if (bus->drv_cc.core->id.rev == 38 ||
bus->chipinfo.id == BCMA_CHIP_ID_BCM4706) {
if (bus->drv_cc.capabilities & BCMA_CC_CAP_NFLASH) {
bcma_debug(bus, "Found NAND flash\n");
bcma_nflash_init(&bus->drv_cc);
}
}
}