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x86: apl: Use memory-mapped access for VBT

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Use the new binman memory-mapping function to access the VBT, to simplify
the code.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2020-07-07 21:32:25 -06:00 • committed by Bin Meng
parent 31b410a68c
commit eb2ebbcf56
2 changed files with 6 additions and 14 deletions
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19
arch/x86/cpu/apollolake/fsp_s.c
View file

@ -36,29 +36,20 @@ int fsps_update_config(struct udevice *dev, ulong rom_offset,
ofnode node;
if (IS_ENABLED(CONFIG_HAVE_VBT)) {
struct binman_entry vbt;
void *vbt_buf;
void *buf;
int ret;
ret = binman_entry_find("intel-vbt", &vbt);
ret = binman_entry_map(ofnode_null(), "intel-vbt", &buf, NULL);
if (ret)
return log_msg_ret("Cannot find VBT", ret);
vbt.image_pos += rom_offset;
vbt_buf = malloc(vbt.size);
if (!vbt_buf)
return log_msg_ret("Alloc VBT", -ENOMEM);
if (*(u32 *)buf != VBT_SIGNATURE)
return log_msg_ret("VBT signature", -EINVAL);
/*
* Load VBT before devicetree-specific config. This only
* supports memory-mapped SPI at present.
*/
bootstage_start(BOOTSTAGE_ID_ACCUM_MMAP_SPI, "mmap_spi");
memcpy(vbt_buf, (void *)vbt.image_pos, vbt.size);
bootstage_accum(BOOTSTAGE_ID_ACCUM_MMAP_SPI);
if (*(u32 *)vbt_buf != VBT_SIGNATURE)
return log_msg_ret("VBT signature", -EINVAL);
cfg->graphics_config_ptr = (ulong)vbt_buf;
cfg->graphics_config_ptr = (ulong)buf;
}
node = dev_read_subnode(dev, "fsp-s");

1
arch/x86/lib/fsp2/fsp_silicon_init.c
View file

@ -32,6 +32,7 @@ int fsp_silicon_init(bool s3wake, bool use_spi_flash)
&rom_offset);
if (ret)
return log_msg_ret("locate FSP", ret);
binman_set_rom_offset(rom_offset);
gd->arch.fsp_s_hdr = hdr;
/* Copy over the default config */