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ARC: add support for reserved memory defined by device tree

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Enable reserved memory initialization from device tree.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
This commit is contained in:
Alexey Brodkin 2016-04-26 19:29:34 +03:00 committed by Vineet Gupta
parent 32ed9a0e0d
commit 1b10cb21d8
2 changed files with 5 additions and 0 deletions
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1
arch/arc/Kconfig
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@ -35,6 +35,7 @@ config ARC
select NO_BOOTMEM select NO_BOOTMEM
select OF select OF
select OF_EARLY_FLATTREE select OF_EARLY_FLATTREE
select OF_RESERVED_MEM
select PERF_USE_VMALLOC select PERF_USE_VMALLOC
select HAVE_DEBUG_STACKOVERFLOW select HAVE_DEBUG_STACKOVERFLOW
select HAVE_GENERIC_DMA_COHERENT select HAVE_GENERIC_DMA_COHERENT

4
arch/arc/mm/init.c
View File

@ -13,6 +13,7 @@
#ifdef CONFIG_BLK_DEV_INITRD #ifdef CONFIG_BLK_DEV_INITRD
#include <linux/initrd.h> #include <linux/initrd.h>
#endif #endif
#include <linux/of_fdt.h>
#include <linux/swap.h> #include <linux/swap.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/highmem.h> #include <linux/highmem.h>
@ -136,6 +137,9 @@ void __init setup_arch_memory(void)
memblock_reserve(__pa(initrd_start), initrd_end - initrd_start); memblock_reserve(__pa(initrd_start), initrd_end - initrd_start);
#endif #endif
early_init_fdt_reserve_self();
early_init_fdt_scan_reserved_mem();
memblock_dump_all(); memblock_dump_all();
/*----------------- node/zones setup --------------------------*/ /*----------------- node/zones setup --------------------------*/