diff options
| author | Guennadi Liakhovetski <lg@denx.de> | 2008-02-29 21:12:57 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-03-06 12:18:17 +0000 |
| commit | be73a347ec7799aec0aa1008bd991f93dbfa80e8 (patch) | |
| tree | f1eb1420be7e9c593c303392b955d7ebd0582f14 /arch | |
| parent | 29e8c3c304b62f31b799565c9ee85d42bd163f80 (diff) | |
[ARM] 4845/1: Orion: Ignore memory tags with invalid data
The DNS-323, Kurobox-Pro / Linkstation-Pro, QNAP TS-109/TS-209 and some
other orion-based systems have several bogus memory entries in the tag
table, which causes the system to crash at startup. Ignore them by
resetting the tag ID to 0 in a machine fixup function.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-orion/common.c | 20 | ||||
| -rw-r--r-- | arch/arm/mach-orion/common.h | 6 | ||||
| -rw-r--r-- | arch/arm/mach-orion/dns323-setup.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-orion/kurobox_pro-setup.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-orion/ts209-setup.c | 1 |
5 files changed, 29 insertions, 0 deletions
diff --git a/arch/arm/mach-orion/common.c b/arch/arm/mach-orion/common.c index 5f0ee4b8a9b..2d6d413f023 100644 --- a/arch/arm/mach-orion/common.c +++ b/arch/arm/mach-orion/common.c @@ -17,7 +17,9 @@ #include <linux/mv643xx_eth.h> #include <linux/mv643xx_i2c.h> #include <asm/page.h> +#include <asm/setup.h> #include <asm/timex.h> +#include <asm/mach/arch.h> #include <asm/mach/map.h> #include <asm/arch/hardware.h> #include "common.h" @@ -347,3 +349,21 @@ void __init orion_init(void) platform_device_register(&orion_ehci1); platform_device_register(&orion_i2c); } + +/* + * Many orion-based systems have buggy bootloader implementations. + * This is a common fixup for bogus memory tags. + */ +void __init tag_fixup_mem32(struct machine_desc *mdesc, struct tag *t, + char **from, struct meminfo *meminfo) +{ + for (; t->hdr.size; t = tag_next(t)) + if (t->hdr.tag == ATAG_MEM && + (!t->u.mem.size || t->u.mem.size & ~PAGE_MASK || + t->u.mem.start & ~PAGE_MASK)) { + printk(KERN_WARNING + "Clearing invalid memory bank %dKB@0x%08x\n", + t->u.mem.size / 1024, t->u.mem.start); + t->hdr.tag = 0; + } +} diff --git a/arch/arm/mach-orion/common.h b/arch/arm/mach-orion/common.h index 10154ec885d..501497cc2c4 100644 --- a/arch/arm/mach-orion/common.h +++ b/arch/arm/mach-orion/common.h @@ -83,4 +83,10 @@ struct mv_sata_platform_data; void __init orion_sata_init(struct mv_sata_platform_data *sata_data); +struct machine_desc; +struct meminfo; +struct tag; +extern void __init tag_fixup_mem32(struct machine_desc *, struct tag *, + char **, struct meminfo *); + #endif /* __ARCH_ORION_COMMON_H__ */ diff --git a/arch/arm/mach-orion/dns323-setup.c b/arch/arm/mach-orion/dns323-setup.c index 02b280c2482..076e155ad51 100644 --- a/arch/arm/mach-orion/dns323-setup.c +++ b/arch/arm/mach-orion/dns323-setup.c @@ -319,4 +319,5 @@ MACHINE_START(DNS323, "D-Link DNS-323") .map_io = orion_map_io, .init_irq = orion_init_irq, .timer = &orion_timer, + .fixup = tag_fixup_mem32, MACHINE_END diff --git a/arch/arm/mach-orion/kurobox_pro-setup.c b/arch/arm/mach-orion/kurobox_pro-setup.c index 6817aca4aa2..785a07bdf1e 100644 --- a/arch/arm/mach-orion/kurobox_pro-setup.c +++ b/arch/arm/mach-orion/kurobox_pro-setup.c @@ -240,4 +240,5 @@ MACHINE_START(KUROBOX_PRO, "Buffalo/Revogear Kurobox Pro") .map_io = orion_map_io, .init_irq = orion_init_irq, .timer = &orion_timer, + .fixup = tag_fixup_mem32, MACHINE_END diff --git a/arch/arm/mach-orion/ts209-setup.c b/arch/arm/mach-orion/ts209-setup.c index b8cfe6813e9..45764dad16d 100644 --- a/arch/arm/mach-orion/ts209-setup.c +++ b/arch/arm/mach-orion/ts209-setup.c @@ -357,4 +357,5 @@ MACHINE_START(TS209, "QNAP TS-109/TS-209") .map_io = orion_map_io, .init_irq = orion_init_irq, .timer = &orion_timer, + .fixup = tag_fixup_mem32, MACHINE_END |