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author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-23 05:11:30 (GMT) |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-23 05:11:30 (GMT) |
commit | 45c091bb2d453ce4a8b06cf19872ec7a77fc4799 (patch) | |
tree | 06fb2e05518ebfba163f8424e028e7faf5672d66 /arch/powerpc/boot | |
parent | d588fcbe5a7ba8bba2cebf7799ab2d573717a806 (diff) | |
parent | 2191fe3e39159e3375f4b7ec1420df149f154101 (diff) | |
download | linux-fsl-qoriq-45c091bb2d453ce4a8b06cf19872ec7a77fc4799.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (139 commits)
[POWERPC] re-enable OProfile for iSeries, using timer interrupt
[POWERPC] support ibm,extended-*-frequency properties
[POWERPC] Extra sanity check in EEH code
[POWERPC] Dont look for class-code in pci children
[POWERPC] Fix mdelay badness on shared processor partitions
[POWERPC] disable floating point exceptions for init
[POWERPC] Unify ppc syscall tables
[POWERPC] mpic: add support for serial mode interrupts
[POWERPC] pseries: Print PCI slot location code on failure
[POWERPC] spufs: one more fix for 64k pages
[POWERPC] spufs: fail spu_create with invalid flags
[POWERPC] spufs: clear class2 interrupt status before wakeup
[POWERPC] spufs: fix Makefile for "make clean"
[POWERPC] spufs: remove stop_code from struct spu
[POWERPC] spufs: fix spu irq affinity setting
[POWERPC] spufs: further abstract priv1 register access
[POWERPC] spufs: split the Cell BE support into generic and platform dependant parts
[POWERPC] spufs: dont try to access SPE channel 1 count
[POWERPC] spufs: use kzalloc in create_spu
[POWERPC] spufs: fix initial state of wbox file
...
Manually resolved conflicts in:
drivers/net/phy/Makefile
include/asm-powerpc/spu.h
Diffstat (limited to 'arch/powerpc/boot')
-rw-r--r-- | arch/powerpc/boot/main.c | 27 | ||||
-rw-r--r-- | arch/powerpc/boot/prom.h | 7 |
2 files changed, 34 insertions, 0 deletions
diff --git a/arch/powerpc/boot/main.c b/arch/powerpc/boot/main.c index 816446f..b66634c 100644 --- a/arch/powerpc/boot/main.c +++ b/arch/powerpc/boot/main.c @@ -33,6 +33,14 @@ extern char _vmlinux_end[]; extern char _initrd_start[]; extern char _initrd_end[]; +/* A buffer that may be edited by tools operating on a zImage binary so as to + * edit the command line passed to vmlinux (by setting /chosen/bootargs). + * The buffer is put in it's own section so that tools may locate it easier. + */ +static char builtin_cmdline[512] + __attribute__((section("__builtin_cmdline"))); + + struct addr_range { unsigned long addr; unsigned long size; @@ -204,6 +212,23 @@ static int is_elf32(void *hdr) return 1; } +void export_cmdline(void* chosen_handle) +{ + int len; + char cmdline[2] = { 0, 0 }; + + if (builtin_cmdline[0] == 0) + return; + + len = getprop(chosen_handle, "bootargs", cmdline, sizeof(cmdline)); + if (len > 0 && cmdline[0] != 0) + return; + + setprop(chosen_handle, "bootargs", builtin_cmdline, + strlen(builtin_cmdline) + 1); +} + + void start(unsigned long a1, unsigned long a2, void *promptr, void *sp) { int len; @@ -289,6 +314,8 @@ void start(unsigned long a1, unsigned long a2, void *promptr, void *sp) memmove((void *)vmlinux.addr,(void *)vmlinuz.addr,vmlinuz.size); } + export_cmdline(chosen_handle); + /* Skip over the ELF header */ #ifdef DEBUG printf("... skipping 0x%lx bytes of ELF header\n\r", diff --git a/arch/powerpc/boot/prom.h b/arch/powerpc/boot/prom.h index 3e2ddd4..a57b184 100644 --- a/arch/powerpc/boot/prom.h +++ b/arch/powerpc/boot/prom.h @@ -31,4 +31,11 @@ static inline int getprop(void *phandle, const char *name, return call_prom("getprop", 4, 1, phandle, name, buf, buflen); } + +static inline int setprop(void *phandle, const char *name, + void *buf, int buflen) +{ + return call_prom("setprop", 4, 1, phandle, name, buf, buflen); +} + #endif /* _PPC_BOOT_PROM_H_ */ |