diff options
| author | Quinn Jensen <quinn.jensen@freescale.com> | 2007-10-24 21:24:48 -0600 |
|---|---|---|
| committer | Quinn Jensen <quinn.jensen@freescale.com> | 2007-10-24 21:24:48 -0600 |
| commit | b4d071c2e403c2279e9e1b7216e22cdbe12d43c7 (patch) | |
| tree | 108527ad66e42338e481edbdd3876dbc227cc4aa /init | |
| parent | cfaf263c60e94bf4fe4005bb7281df144636ba42 (diff) | |
Bugzilla 776 - FS-001 XIP from cramfs - Community patch
Patch for Bugzilla 776 - FS-001 XIP from cramfs
Origin: http://lwn.net/Articles/235532/
Description: Venerable cramfs fs Linear XIP patch originally from
MontaVista, used in the embedded Linux community for years, updated for
2.6.21. Tested on several systems with NOR Flash. PXA270, TI OMAP2430,
ARM Versatile and Freescale iMX31ADS.
Portions Copyright Shane Nay and Robert Leslie <rob@mars.org>
http://www.bitshrine.org/gpp/linux-2.6.22-mx-Bugzilla-776-FS-001-XIP-from-cramfs-Commun.patch
Diffstat (limited to 'init')
| -rw-r--r-- | init/do_mounts.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/init/do_mounts.c b/init/do_mounts.c index 4efa1e5385e3..cf317e04bbcf 100644 --- a/init/do_mounts.c +++ b/init/do_mounts.c @@ -360,6 +360,16 @@ static int __init mount_nfs_root(void) } #endif +#ifdef CONFIG_ROOT_CRAMFS_LINEAR +static int __init mount_cramfs_linear_root(void) +{ + create_dev("/dev/root", ROOT_DEV); + if (do_mount_root("/dev/root","cramfs",root_mountflags,root_mount_data) == 0) + return 1; + return 0; +} +#endif + #if defined(CONFIG_BLK_DEV_RAM) || defined(CONFIG_BLK_DEV_FD) void __init change_floppy(char *fmt, ...) { @@ -392,6 +402,13 @@ void __init change_floppy(char *fmt, ...) void __init mount_root(void) { +#ifdef CONFIG_ROOT_CRAMFS_LINEAR + if (ROOT_DEV == MKDEV(0, 0)) { + if (mount_cramfs_linear_root()) + return; + printk (KERN_ERR "VFS: Unable to mount linear cramfs root.\n"); + } +#endif #ifdef CONFIG_ROOT_NFS if (MAJOR(ROOT_DEV) == UNNAMED_MAJOR) { if (mount_nfs_root()) |