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spl: Add support for passing handoff info to U-Boot proper

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There is some basic informaton that SPL normally wants to pass through to
U-Boot, such as the SDRAM size and bank information.

Mkae use of the new bloblist structure for this. Add a new 'handoff' blob
which is set up in SPL and passed to U-Boot proper. Also adda  test for
sandbox_spl that checks that this works correctly and a new 'sb' command
to show the information passed from SPL.

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2018-11-15 18:44:09 -07:00
committed by Tom Rini
parent 27028f186d
commit b0edea3c27
14 changed files with 253 additions and 17 deletions
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21
cmd/sb.c
View File

@@ -9,6 +9,23 @@
#include <spl.h>
#include <asm/state.h>
static int do_sb_handoff(cmd_tbl_t *cmdtp, int flag, int argc,
char *const argv[])
{
#if CONFIG_IS_ENABLED(HANDOFF)
if (gd->spl_handoff)
printf("SPL handoff magic %lx\n", gd->spl_handoff->arch.magic);
else
printf("SPL handoff info not received\n");
return 0;
#else
printf("Command not supported\n");
return CMD_RET_USAGE;
#endif
}
static int do_sb_state(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
@@ -21,6 +38,7 @@ static int do_sb_state(cmd_tbl_t *cmdtp, int flag, int argc,
}
static cmd_tbl_t cmd_sb_sub[] = {
U_BOOT_CMD_MKENT(handoff, 1, 0, do_sb_handoff, "", ""),
U_BOOT_CMD_MKENT(state, 1, 0, do_sb_state, "", ""),
};
@@ -42,5 +60,6 @@ static int do_sb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
U_BOOT_CMD(
sb, 8, 1, do_sb,
"Sandbox status commands",
"state - Show sandbox state"
"handoff - Show handoff data received from SPL\n"
"sb state - Show sandbox state"
);