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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>
This commit is contained in:
Aaron Kling committed 2026-08-22 16:55:14 -05:00
1 parent 0a63d792ed
commit cdae45b395
3 files changed
+33 -20
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drivers/soc/tegra/fuse/fuse-tegra.c
+1
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@@ -35,6 +35,7 @@ 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] = {
drivers/soc/tegra/fuse/tegra-apbmisc.c
+31 -20
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@@ -134,30 +134,41 @@ 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);
include/soc/tegra/fuse.h
+1
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@@ -33,6 +33,7 @@ enum tegra_revision {
TEGRA_REVISION_A03,
TEGRA_REVISION_A03p,
TEGRA_REVISION_A04,
TEGRA_REVISION_B01,
TEGRA_REVISION_MAX,
};