diff options
| -rw-r--r-- | drivers/bcma/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/bcma/bcma_private.h | 1 | ||||
| -rw-r--r-- | drivers/bcma/driver_chipcommon_nflash.c | 28 | ||||
| -rw-r--r-- | drivers/bcma/main.c | 8 | ||||
| -rw-r--r-- | include/linux/bcma/bcma_driver_chipcommon.h | 13 |
5 files changed, 48 insertions, 4 deletions
diff --git a/drivers/bcma/Kconfig b/drivers/bcma/Kconfig index cf6e4dd22fd2..a533af218368 100644 --- a/drivers/bcma/Kconfig +++ b/drivers/bcma/Kconfig @@ -53,7 +53,7 @@ config BCMA_SFLASH config BCMA_NFLASH bool - depends on BCMA_DRIVER_MIPS && BROKEN + depends on BCMA_DRIVER_MIPS default y config BCMA_DRIVER_GMAC_CMN diff --git a/drivers/bcma/bcma_private.h b/drivers/bcma/bcma_private.h index 94bf07c54a43..169fc58427d3 100644 --- a/drivers/bcma/bcma_private.h +++ b/drivers/bcma/bcma_private.h @@ -66,6 +66,7 @@ static inline int bcma_sflash_init(struct bcma_drv_cc *cc) #ifdef CONFIG_BCMA_NFLASH /* driver_chipcommon_nflash.c */ int bcma_nflash_init(struct bcma_drv_cc *cc); +extern struct platform_device bcma_nflash_dev; #else static inline int bcma_nflash_init(struct bcma_drv_cc *cc) { diff --git a/drivers/bcma/driver_chipcommon_nflash.c b/drivers/bcma/driver_chipcommon_nflash.c index 574d62435bc2..9042781edec3 100644 --- a/drivers/bcma/driver_chipcommon_nflash.c +++ b/drivers/bcma/driver_chipcommon_nflash.c @@ -5,15 +5,37 @@ * Licensed under the GNU/GPL. See COPYING for details. */ +#include <linux/platform_device.h> #include <linux/bcma/bcma.h> -#include <linux/bcma/bcma_driver_chipcommon.h> -#include <linux/delay.h> #include "bcma_private.h" +struct platform_device bcma_nflash_dev = { + .name = "bcma_nflash", + .num_resources = 0, +}; + /* Initialize NAND flash access */ int bcma_nflash_init(struct bcma_drv_cc *cc) { - bcma_err(cc->core->bus, "NAND flash support is broken\n"); + struct bcma_bus *bus = cc->core->bus; + + if (bus->chipinfo.id != BCMA_CHIP_ID_BCM4706 && + cc->core->id.rev != 0x38) { + bcma_err(bus, "NAND flash on unsupported board!\n"); + return -ENOTSUPP; + } + + if (!(cc->capabilities & BCMA_CC_CAP_NFLASH)) { + bcma_err(bus, "NAND flash not present according to ChipCommon\n"); + return -ENODEV; + } + + cc->nflash.present = true; + + /* Prepare platform device, but don't register it yet. It's too early, + * malloc (required by device_private_init) is not available yet. */ + bcma_nflash_dev.dev.platform_data = &cc->nflash; + return 0; } diff --git a/drivers/bcma/main.c b/drivers/bcma/main.c index a501d259287c..a8f570d69075 100644 --- a/drivers/bcma/main.c +++ b/drivers/bcma/main.c @@ -145,6 +145,14 @@ static int bcma_register_cores(struct bcma_bus *bus) } #endif +#ifdef CONFIG_BCMA_NFLASH + if (bus->drv_cc.nflash.present) { + err = platform_device_register(&bcma_nflash_dev); + if (err) + bcma_err(bus, "Error registering NAND flash\n"); + } +#endif + return 0; } diff --git a/include/linux/bcma/bcma_driver_chipcommon.h b/include/linux/bcma/bcma_driver_chipcommon.h index bed89694c5f9..9810d4b29abf 100644 --- a/include/linux/bcma/bcma_driver_chipcommon.h +++ b/include/linux/bcma/bcma_driver_chipcommon.h @@ -519,6 +519,16 @@ struct bcma_sflash { }; #endif +#ifdef CONFIG_BCMA_NFLASH +struct mtd_info; + +struct bcma_nflash { + bool present; + + struct mtd_info *mtd; +}; +#endif + struct bcma_serial_port { void *regs; unsigned long clockspeed; @@ -542,6 +552,9 @@ struct bcma_drv_cc { #ifdef CONFIG_BCMA_SFLASH struct bcma_sflash sflash; #endif +#ifdef CONFIG_BCMA_NFLASH + struct bcma_nflash nflash; +#endif int nr_serial_ports; struct bcma_serial_port serial_ports[4]; |