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soc/tegra: fuse: Support revision B01

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Previously, all supported SoCs only used the A major revision. The
Tegra210B01 SoC incremented the major revision. Add support for this.

Signed-off-by: Aaron Kling <webgeek1234@gmail.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Aaron Kling 2026-07-27 20:57:35 -05:00 committed by Thierry Reding
parent 4ccb980125
commit 98442683d8
3 changed files with 33 additions and 20 deletions
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1
drivers/soc/tegra/fuse/fuse-tegra.c
View File

@ -34,6 +34,7 @@ static const char *tegra_revision_name[TEGRA_REVISION_MAX] = {
[TEGRA_REVISION_A03] = "A03",
[TEGRA_REVISION_A03p] = "A03 prime",
[TEGRA_REVISION_A04] = "A04",
[TEGRA_REVISION_B01] = "B01",
};
static const char *tegra_platform_name[TEGRA_PLATFORM_MAX] = {

51
drivers/soc/tegra/fuse/tegra-apbmisc.c
View File

@ -167,30 +167,41 @@ static const struct of_device_id apbmisc_match[] __initconst = {
void __init tegra_init_revision(void)
{
u8 chip_id, minor_rev;
u8 chip_id, major_rev, minor_rev;
chip_id = tegra_get_chip_id();
major_rev = tegra_get_major_rev();
minor_rev = tegra_get_minor_rev();
switch (minor_rev) {
case 1:
tegra_sku_info.revision = TEGRA_REVISION_A01;
break;
case 2:
tegra_sku_info.revision = TEGRA_REVISION_A02;
break;
case 3:
if (chip_id == TEGRA20 && (tegra_fuse_read_spare(18) ||
tegra_fuse_read_spare(19)))
tegra_sku_info.revision = TEGRA_REVISION_A03p;
else
tegra_sku_info.revision = TEGRA_REVISION_A03;
break;
case 4:
tegra_sku_info.revision = TEGRA_REVISION_A04;
break;
default:
tegra_sku_info.revision = TEGRA_REVISION_UNKNOWN;
if (major_rev > 1) {
switch (minor_rev) {
case 1:
tegra_sku_info.revision = TEGRA_REVISION_B01;
break;
default:
tegra_sku_info.revision = TEGRA_REVISION_UNKNOWN;
}
} else {
switch (minor_rev) {
case 1:
tegra_sku_info.revision = TEGRA_REVISION_A01;
break;
case 2:
tegra_sku_info.revision = TEGRA_REVISION_A02;
break;
case 3:
if (chip_id == TEGRA20 && (tegra_fuse_read_spare(18) ||
tegra_fuse_read_spare(19)))
tegra_sku_info.revision = TEGRA_REVISION_A03p;
else
tegra_sku_info.revision = TEGRA_REVISION_A03;
break;
case 4:
tegra_sku_info.revision = TEGRA_REVISION_A04;
break;
default:
tegra_sku_info.revision = TEGRA_REVISION_UNKNOWN;
}
}
tegra_sku_info.sku_id = tegra_fuse_read_early(FUSE_SKU_INFO);

1
include/soc/tegra/fuse.h
View File

@ -33,6 +33,7 @@ enum tegra_revision {
TEGRA_REVISION_A03,
TEGRA_REVISION_A03p,
TEGRA_REVISION_A04,
TEGRA_REVISION_B01,
TEGRA_REVISION_MAX,
};