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binman: Add binman support to spl_ram.c

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SPL supports reading U-Boot from a RAM location. At present this is
hard-coded to the U-Boot text base address. Use binman to allow this to
come from the image file, if binman is used.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2017-11-13 18:55:04 -07:00
parent 8bee2d251a
commit dfce1799e7
1 changed files with 15 additions and 4 deletions
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19
common/spl/spl_ram.c
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@ -11,6 +11,8 @@
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <binman_sym.h>
#include <mapmem.h>
#include <spl.h>
#include <libfdt.h>
@ -48,15 +50,24 @@ static int spl_ram_load_image(struct spl_image_info *spl_image,
load.read = spl_ram_load_read;
spl_load_simple_fit(spl_image, &load, 0, header);
} else {
ulong u_boot_pos = binman_sym(ulong, u_boot_any, pos);
debug("Legacy image\n");
/*
* Get the header. It will point to an address defined by
* handoff which will tell where the image located inside
* the flash. For now, it will temporary fixed to address
* pointed by U-Boot.
* the flash.
*/
header = (struct image_header *)
(CONFIG_SYS_TEXT_BASE - sizeof(struct image_header));
debug("u_boot_pos = %lx\n", u_boot_pos);
if (u_boot_pos == BINMAN_SYM_MISSING) {
/*
* No binman support or no information. For now, fix it
* to the address pointed to by U-Boot.
*/
u_boot_pos = CONFIG_SYS_TEXT_BASE -
sizeof(struct image_header);
}
header = (struct image_header *)map_sysmem(u_boot_pos, 0);
spl_parse_image_header(spl_image, header);
}