xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

MIPS: Netlogic: Support for multiple built-in device trees

Browse Source 
This enables us to have a default device tree per SoC family to be built
into the kernel. The default device tree for XLP3xx has been added as part
of this change. Later this can be used to provide support default boards
for XLP2xx and XLP9xx SoCs.

Kconfig options are provided for each default device tree so that just the
needed ones can be selected to be built into the kernel.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/5023/
Acked-by: John Crispin <blogic@openwrt.org>
This commit is contained in:
Jayachandran C
2013-03-23 17:27:59 +00:00
committed by Ralf Baechle
parent 033e6f2887
commit 035114fbdb
5 changed files with 158 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
arch/mips/netlogic/xlp/setup.c
View File

@@ -56,7 +56,7 @@ uint64_t nlm_io_base;
struct nlm_soc_info nlm_nodes[NLM_NR_NODES];
cpumask_t nlm_cpumask = CPU_MASK_CPU0;
unsigned int nlm_threads_per_core;
extern u32 __dtb_start[];
extern u32 __dtb_xlp_evp_begin[], __dtb_xlp_svp_begin[], __dtb_start[];
static void nlm_linux_exit(void)
{
@@ -82,8 +82,24 @@ void __init plat_mem_setup(void)
* 64-bit, so convert pointer.
*/
fdtp = (void *)(long)fw_arg0;
if (!fdtp)
fdtp = __dtb_start;
if (!fdtp) {
switch (current_cpu_data.processor_id & 0xff00) {
#ifdef CONFIG_DT_XLP_SVP
case PRID_IMP_NETLOGIC_XLP3XX:
fdtp = __dtb_xlp_svp_begin;
break;
#endif
#ifdef CONFIG_DT_XLP_EVP
case PRID_IMP_NETLOGIC_XLP8XX:
fdtp = __dtb_xlp_evp_begin;
break;
#endif
default:
/* Pick a built-in if any, and hope for the best */
fdtp = __dtb_start;
break;
}
}
fdtp = phys_to_virt(__pa(fdtp));
early_init_devtree(fdtp);
}