diff options
| author | Jayachandran C <jayachandranc@netlogicmicro.com> | 2012-07-13 18:23:22 +0200 |
|---|---|---|
| committer | John Crispin <blogic@openwrt.org> | 2012-08-22 23:46:37 +0200 |
| commit | 2f6528e15a4592c762a690c1320518368593ae75 (patch) | |
| tree | 6fd1aafd2586875f2905398a1e0ab8f5c571142a /arch/mips/netlogic/xlp/setup.c | |
| parent | MIPS: Netlogic: Move serial ports to device tree (diff) | |
| download | linux-2f6528e15a4592c762a690c1320518368593ae75.tar.xz linux-2f6528e15a4592c762a690c1320518368593ae75.zip | |
MIPS: Netlogic: Add support for built in DTB
Provide a config option to embed a device tree for XLP evaluation
boards. This DTB will be used if the firmware does not pass in a
device tree pointer.
Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
Patchwork: http://patchwork.linux-mips.org/patch/4103/
Signed-off-by: John Crispin <blogic@openwrt.org>
Diffstat (limited to 'arch/mips/netlogic/xlp/setup.c')
| -rw-r--r-- | arch/mips/netlogic/xlp/setup.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/mips/netlogic/xlp/setup.c b/arch/mips/netlogic/xlp/setup.c index 0d2d679c6c56..d8997098defd 100644 --- a/arch/mips/netlogic/xlp/setup.c +++ b/arch/mips/netlogic/xlp/setup.c @@ -57,6 +57,7 @@ unsigned long nlm_common_ebase = 0x0; /* default to uniprocessor */ uint32_t nlm_coremask = 1, nlm_cpumask = 1; int nlm_threads_per_core = 1; +extern u32 __dtb_start[]; static void nlm_linux_exit(void) { @@ -97,9 +98,18 @@ void __init prom_init(void) { void *fdtp; - fdtp = (void *)(long)fw_arg0; xlp_mmu_init(); nlm_hal_init(); + + /* + * If no FDT pointer is passed in, use the built-in FDT. + * device_tree_init() does not handle CKSEG0 pointers in + * 64-bit, so convert pointer. + */ + fdtp = (void *)(long)fw_arg0; + if (!fdtp) + fdtp = __dtb_start; + fdtp = phys_to_virt(__pa(fdtp)); early_init_devtree(fdtp); nlm_common_ebase = read_c0_ebase() & (~((1 << 12) - 1)); |