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ralink: Introduce fw_passed_dtb to arch/mips/ralink 

This patch adds fw_passed_dtb to arch/mips/ralink to support
CONFIG_MIPS_RAW_APPENDED_DTB. Furthermore it adds a check that __dtb_start is
not the same address as __dtb_end.

Signed-off-by: Tobias Wolf <dev-NTEO@vplace.de>
Acked-by: John Crispin <john@phrozen.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/14662/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Tobias Wolf 2016-12-13 11:46:41 +01:00 committed by Ralf Baechle
parent 5e73ad3ffc
commit 02564fc89d
1 changed files with 10 additions and 2 deletions
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12
arch/mips/ralink/of.c
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@ -66,13 +66,21 @@ static int __init early_init_dt_find_memory(unsigned long node,
void __init plat_mem_setup(void)
{
void *dtb = NULL;
set_io_port_base(KSEG1);
/*
* Load the builtin devicetree. This causes the chosen node to be
* parsed resulting in our memory appearing
* parsed resulting in our memory appearing. fw_passed_dtb is used
* by CONFIG_MIPS_APPENDED_RAW_DTB as well.
*/
__dt_setup_arch(__dtb_start);
if (fw_passed_dtb)
dtb = (void *)fw_passed_dtb;
else if (__dtb_start != __dtb_end)
dtb = (void *)__dtb_start;
__dt_setup_arch(dtb);
of_scan_flat_dt(early_init_dt_find_memory, NULL);
if (memory_dtb)