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lib: fdt: Split fdtdec_setup_memory_banksize()

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Split fdtdec_setup_memory_banksize() into fdtdec_setup_memory_banksize_fdt(),
which allows the caller to pass custom blob into the function and the
original fdtdec_setup_memory_banksize(), which uses the gd->fdt_blob. This
is useful when configuring the DRAM properties from a FDT blob fragment
passed in by the firmware.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Marek Vasut
2019-03-05 04:25:55 +01:00
committed by Marek Vasut
parent 3ebe09d09a
commit 118f4d4559
2 changed files with 31 additions and 6 deletions
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19
include/fdtdec.h
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@@ -955,6 +955,25 @@ int fdtdec_setup_mem_size_base_fdt(const void *blob);
*/
int fdtdec_setup_mem_size_base(void);
/**
* fdtdec_setup_memory_banksize_fdt() - decode and populate gd->bd->bi_dram
*
* Decode the /memory 'reg' property to determine the address and size of the
* memory banks. Use this data to populate the global data board info with the
* phys address and size of memory banks.
*
* This function should be called from a boards dram_init_banksize(). This
* helper function allows for boards to query the device tree for memory bank
* information instead of hard coding the information in cases where it cannot
* be detected automatically.
*
* @param blob FDT blob
*
* @return 0 if OK, -EINVAL if the /memory node or reg property is missing or
* invalid
*/
int fdtdec_setup_memory_banksize_fdt(const void *blob);
/**
* fdtdec_setup_memory_banksize() - decode and populate gd->bd->bi_dram
*