* [PATCH v2 3/3] soc/tegra: fuse: Add Tegra264 support
2026-09-17 9:16 [PATCH v2 0/3] soc/tegra: fuse: Add Tegra264 support Jon Hunter
2026-09-17 9:16 ` [PATCH v2 1/3] dt-bindings: fuse: Document compatible string for Tegra264 FUSE Jon Hunter
2026-09-17 9:16 ` [PATCH v2 2/3] arm64: tegra: Add FUSE block on Tegra264 Jon Hunter
@ 2026-09-17 9:16 ` Jon Hunter
2026-09-21 10:24 ` [PATCH v2 0/3] " Thierry Reding
3 siblings, 0 replies; 6+ messages in thread
From: Jon Hunter @ 2026-09-17 9:16 UTC (permalink / raw)
To: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Thierry Reding
Cc: Thierry Reding, devicetree, linux-tegra, linux-kernel, Jon Hunter
Add the fuse SoC data for the Tegra264 device which defines the address
range and keepouts for the fuse registers.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
---
drivers/soc/tegra/fuse/fuse-tegra.c | 11 ++-
drivers/soc/tegra/fuse/fuse-tegra30.c | 168 +++++++++++++++++++++++++++++++++-
drivers/soc/tegra/fuse/fuse.h | 7 +-
3 files changed, 183 insertions(+), 3 deletions(-)
diff --git a/drivers/soc/tegra/fuse/fuse-tegra.c b/drivers/soc/tegra/fuse/fuse-tegra.c
index 39654964c35c3e59e142f74b09fc60cb3515c78a..b8c8ccf80056cbf13318f7ad06de6c658f52ad41 100644
--- a/drivers/soc/tegra/fuse/fuse-tegra.c
+++ b/drivers/soc/tegra/fuse/fuse-tegra.c
@@ -65,6 +65,9 @@ static struct tegra_fuse *fuse = &(struct tegra_fuse) {
};
static const struct of_device_id tegra_fuse_match[] = {
+#ifdef CONFIG_ARCH_TEGRA_264_SOC
+ { .compatible = "nvidia,tegra264-efuse", .data = &tegra264_fuse_soc },
+#endif
#ifdef CONFIG_ARCH_TEGRA_234_SOC
{ .compatible = "nvidia,tegra234-efuse", .data = &tegra234_fuse_soc },
#endif
@@ -175,6 +178,11 @@ static int tegra_fuse_probe(struct platform_device *pdev)
case TEGRA241:
fuse->soc = &tegra241_fuse_soc;
break;
+#endif
+#if defined(CONFIG_ARCH_TEGRA_264_SOC)
+ case TEGRA264:
+ fuse->soc = &tegra264_fuse_soc;
+ break;
#endif
default:
return dev_err_probe(&pdev->dev, -EINVAL, "Unsupported SoC: %02x\n", chip);
@@ -413,7 +421,8 @@ const struct attribute_group tegra_soc_attr_group = {
#if IS_ENABLED(CONFIG_ARCH_TEGRA_194_SOC) || \
IS_ENABLED(CONFIG_ARCH_TEGRA_234_SOC) || \
- IS_ENABLED(CONFIG_ARCH_TEGRA_241_SOC)
+ IS_ENABLED(CONFIG_ARCH_TEGRA_241_SOC) || \
+ IS_ENABLED(CONFIG_ARCH_TEGRA_264_SOC)
static ssize_t platform_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
diff --git a/drivers/soc/tegra/fuse/fuse-tegra30.c b/drivers/soc/tegra/fuse/fuse-tegra30.c
index 2fad8b13a3b9615b46187ecfc6f975dd8e0f6e80..623848116b693b2a4c6669538f096b99943f420a 100644
--- a/drivers/soc/tegra/fuse/fuse-tegra30.c
+++ b/drivers/soc/tegra/fuse/fuse-tegra30.c
@@ -39,7 +39,8 @@
defined(CONFIG_ARCH_TEGRA_186_SOC) || \
defined(CONFIG_ARCH_TEGRA_194_SOC) || \
defined(CONFIG_ARCH_TEGRA_234_SOC) || \
- defined(CONFIG_ARCH_TEGRA_241_SOC)
+ defined(CONFIG_ARCH_TEGRA_241_SOC) || \
+ defined(CONFIG_ARCH_TEGRA_264_SOC)
static u32 tegra30_fuse_read_early(struct tegra_fuse *fuse, unsigned int offset)
{
if (WARN_ON(!fuse->base))
@@ -802,3 +803,168 @@ const struct tegra_fuse_soc tegra241_fuse_soc = {
.soc_attr_group = &tegra194_soc_attr_group,
};
#endif
+
+#ifdef CONFIG_ARCH_TEGRA_264_SOC
+static const struct nvmem_keepout tegra264_fuse_keepouts[] = {
+ { .start = 0x0019c, .end = 0x001a0 },
+ { .start = 0x00308, .end = 0x00310 },
+ { .start = 0x0032c, .end = 0x00334 },
+ { .start = 0x00350, .end = 0x00354 },
+ { .start = 0x00494, .end = 0x0049c },
+ { .start = 0x0078c, .end = 0x00790 },
+ { .start = 0x007a0, .end = 0x007a8 },
+ { .start = 0x007dc, .end = 0x007e4 },
+ { .start = 0x008d8, .end = 0x008dc },
+ { .start = 0x0096c, .end = 0x00970 },
+ { .start = 0x00974, .end = 0x0097c },
+ { .start = 0x009f4, .end = 0x009f8 },
+ { .start = 0x00a14, .end = 0x00a20 },
+ { .start = 0x00a44, .end = 0x00a4c },
+ { .start = 0x00a50, .end = 0x00a58 },
+ { .start = 0x00a5c, .end = 0x00a64 },
+ { .start = 0x00a68, .end = 0x00a70 },
+ { .start = 0x00acc, .end = 0x00ad0 },
+ { .start = 0x00b0c, .end = 0x00b18 },
+ { .start = 0x00c80, .end = 0x00c8c },
+ { .start = 0x00dac, .end = 0x00db4 },
+ { .start = 0x00db8, .end = 0x00dbc },
+ { .start = 0x00e0c, .end = 0x00e10 },
+ { .start = 0x00fd0, .end = 0x01f00 },
+ { .start = 0x01f1c, .end = 0x10064 },
+ { .start = 0x10084, .end = 0x100a0 },
+ { .start = 0x100a4, .end = 0x1019c },
+ { .start = 0x101a0, .end = 0x101cc },
+ { .start = 0x101d0, .end = 0x10308 },
+ { .start = 0x10310, .end = 0x1055c },
+ { .start = 0x1057c, .end = 0x106b0 },
+ { .start = 0x106b4, .end = 0x11008 },
+ { .start = 0x1100c, .end = 0x11018 },
+ { .start = 0x11020, .end = 0x110b8 },
+ { .start = 0x110c4, .end = 0x110c8 },
+ { .start = 0x110e8, .end = 0x110ec },
+ { .start = 0x110f0, .end = 0x11124 },
+ { .start = 0x11128, .end = 0x11168 },
+ { .start = 0x1116c, .end = 0x111b8 },
+ { .start = 0x111bc, .end = 0x111e4 },
+ { .start = 0x111e8, .end = 0x111ec },
+ { .start = 0x111f0, .end = 0x1121c },
+ { .start = 0x11250, .end = 0x1133c },
+ { .start = 0x11340, .end = 0x113c8 },
+ { .start = 0x113d0, .end = 0x11420 },
+ { .start = 0x11430, .end = 0x11440 },
+ { .start = 0x11444, .end = 0x11468 },
+ { .start = 0x1146c, .end = 0x114a8 },
+ { .start = 0x114ac, .end = 0x115cc },
+ { .start = 0x115d0, .end = 0x115dc },
+ { .start = 0x115e0, .end = 0x116b4 },
+ { .start = 0x116bc, .end = 0x11740 },
+ { .start = 0x11744, .end = 0x117b8 },
+ { .start = 0x117bc, .end = 0x11810 },
+ { .start = 0x11814, .end = 0x11850 },
+ { .start = 0x11858, .end = 0x118a0 },
+ { .start = 0x118ac, .end = 0x11b48 },
+ { .start = 0x11b50, .end = 0x11b5c },
+ { .start = 0x11b60, .end = 0x11bf8 },
+ { .start = 0x11bfc, .end = 0x11c18 },
+ { .start = 0x11c40, .end = 0x12000 },
+ { .start = 0x12004, .end = 0x12010 },
+ { .start = 0x12014, .end = 0x120fc },
+ { .start = 0x1211c, .end = 0x12120 },
+ { .start = 0x12124, .end = 0x12144 },
+ { .start = 0x1214c, .end = 0x12300 },
+ { .start = 0x12308, .end = 0x1236c },
+ { .start = 0x12370, .end = 0x126ac },
+ { .start = 0x126b0, .end = 0x12c60 },
+ { .start = 0x12c64, .end = 0x12d94 },
+ { .start = 0x12da4, .end = 0x13004 },
+ { .start = 0x13008, .end = 0x1300c },
+ { .start = 0x13010, .end = 0x13014 },
+ { .start = 0x13018, .end = 0x13020 },
+ { .start = 0x13064, .end = 0x13084 },
+ { .start = 0x130a0, .end = 0x130a4 },
+ { .start = 0x130b8, .end = 0x130c4 },
+ { .start = 0x130c8, .end = 0x130e8 },
+ { .start = 0x130ec, .end = 0x130f0 },
+ { .start = 0x130fc, .end = 0x1311c },
+ { .start = 0x13120, .end = 0x13128 },
+ { .start = 0x13144, .end = 0x1314c },
+ { .start = 0x13168, .end = 0x1316c },
+ { .start = 0x1319c, .end = 0x131a0 },
+ { .start = 0x131ac, .end = 0x131c0 },
+ { .start = 0x131cc, .end = 0x131d0 },
+ { .start = 0x131e4, .end = 0x131e8 },
+ { .start = 0x131ec, .end = 0x131f0 },
+ { .start = 0x1321c, .end = 0x13250 },
+ { .start = 0x132f0, .end = 0x13310 },
+ { .start = 0x1332c, .end = 0x13334 },
+ { .start = 0x1333c, .end = 0x13344 },
+ { .start = 0x13350, .end = 0x13354 },
+ { .start = 0x1336c, .end = 0x13370 },
+ { .start = 0x133ac, .end = 0x133b0 },
+ { .start = 0x133c8, .end = 0x133d0 },
+ { .start = 0x13420, .end = 0x13430 },
+ { .start = 0x13440, .end = 0x13444 },
+ { .start = 0x13468, .end = 0x13470 },
+ { .start = 0x13494, .end = 0x1349c },
+ { .start = 0x134a8, .end = 0x134ac },
+ { .start = 0x13544, .end = 0x1354c },
+ { .start = 0x1355c, .end = 0x1357c },
+ { .start = 0x135cc, .end = 0x135e0 },
+ { .start = 0x135e4, .end = 0x13608 },
+ { .start = 0x1360c, .end = 0x13620 },
+ { .start = 0x136ac, .end = 0x136bc },
+ { .start = 0x136c0, .end = 0x136c8 },
+ { .start = 0x13714, .end = 0x13718 },
+ { .start = 0x13724, .end = 0x13728 },
+ { .start = 0x1372c, .end = 0x13730 },
+ { .start = 0x13734, .end = 0x1373c },
+ { .start = 0x13740, .end = 0x13744 },
+ { .start = 0x13754, .end = 0x13758 },
+ { .start = 0x13760, .end = 0x13784 },
+ { .start = 0x1378c, .end = 0x13790 },
+ { .start = 0x137a0, .end = 0x137a8 },
+ { .start = 0x137b8, .end = 0x137bc },
+ { .start = 0x137dc, .end = 0x137e4 },
+ { .start = 0x137ec, .end = 0x137f0 },
+ { .start = 0x13800, .end = 0x13818 },
+ { .start = 0x13820, .end = 0x13828 },
+ { .start = 0x13830, .end = 0x13858 },
+ { .start = 0x138a0, .end = 0x138b0 },
+ { .start = 0x138d0, .end = 0x138dc },
+ { .start = 0x1396c, .end = 0x13970 },
+ { .start = 0x13974, .end = 0x1397c },
+ { .start = 0x139f4, .end = 0x139f8 },
+ { .start = 0x13a14, .end = 0x13a20 },
+ { .start = 0x13a44, .end = 0x13a4c },
+ { .start = 0x13a50, .end = 0x13a58 },
+ { .start = 0x13a5c, .end = 0x13a64 },
+ { .start = 0x13a68, .end = 0x13a70 },
+ { .start = 0x13acc, .end = 0x13ad8 },
+ { .start = 0x13b0c, .end = 0x13b18 },
+ { .start = 0x13b48, .end = 0x13b50 },
+ { .start = 0x13b5c, .end = 0x13b60 },
+ { .start = 0x13bf8, .end = 0x13bfc },
+ { .start = 0x13c18, .end = 0x13c40 },
+ { .start = 0x13c60, .end = 0x13c64 },
+ { .start = 0x13c74, .end = 0x13c8c },
+ { .start = 0x13d94, .end = 0x13da4 },
+ { .start = 0x13dac, .end = 0x13db4 },
+ { .start = 0x13db8, .end = 0x13dbc },
+ { .start = 0x13df4, .end = 0x13e04 },
+ { .start = 0x13e0c, .end = 0x13e10 },
+};
+
+static const struct tegra_fuse_info tegra264_fuse_info = {
+ .read = tegra30_fuse_read,
+ .size = 0x13eb8,
+};
+
+const struct tegra_fuse_soc tegra264_fuse_soc = {
+ .init = tegra30_fuse_init,
+ .info = &tegra264_fuse_info,
+ .keepouts = tegra264_fuse_keepouts,
+ .num_keepouts = ARRAY_SIZE(tegra264_fuse_keepouts),
+ .soc_attr_group = &tegra194_soc_attr_group,
+ .clk_suspend_on = false,
+};
+#endif
diff --git a/drivers/soc/tegra/fuse/fuse.h b/drivers/soc/tegra/fuse/fuse.h
index 9fee6ad6ad9e98852c9d47079cdf49433e55fdb7..0fb97508db0a56c742cca6f7d1175b714aa7099c 100644
--- a/drivers/soc/tegra/fuse/fuse.h
+++ b/drivers/soc/tegra/fuse/fuse.h
@@ -125,7 +125,8 @@ extern const struct tegra_fuse_soc tegra186_fuse_soc;
#if IS_ENABLED(CONFIG_ARCH_TEGRA_194_SOC) || \
IS_ENABLED(CONFIG_ARCH_TEGRA_234_SOC) || \
- IS_ENABLED(CONFIG_ARCH_TEGRA_241_SOC)
+ IS_ENABLED(CONFIG_ARCH_TEGRA_241_SOC) || \
+ IS_ENABLED(CONFIG_ARCH_TEGRA_264_SOC)
extern const struct attribute_group tegra194_soc_attr_group;
#endif
@@ -141,4 +142,8 @@ extern const struct tegra_fuse_soc tegra234_fuse_soc;
extern const struct tegra_fuse_soc tegra241_fuse_soc;
#endif
+#ifdef CONFIG_ARCH_TEGRA_264_SOC
+extern const struct tegra_fuse_soc tegra264_fuse_soc;
+#endif
+
#endif
--
2.43.0
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