linux-kernel - [PATCH v2 6/6] soc/tegra: fuse: Add support for Tegra241

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Message-ID: <20230905125824.2947-7-kkartik@nvidia.com>
Date:   Tue, 5 Sep 2023 18:28:24 +0530
From:   Kartik <kkartik@...dia.com>
To:     <thierry.reding@...il.com>, <jonathanh@...dia.com>,
        <sumitg@...dia.com>, <arnd@...db.de>, <pshete@...dia.com>,
        <andriy.shevchenko@...ux.intel.com>, <kkartik@...dia.com>,
        <digetx@...il.com>, <petlozup@...dia.com>, <windhl@....com>,
        <frank.li@...o.com>, <robh@...nel.org>, <stefank@...dia.com>,
        <pdeschrijver@...dia.com>, <linux-tegra@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH v2 6/6] soc/tegra: fuse: Add support for Tegra241

Add support for Tegra241 which use ACPI boot.

Signed-off-by: Kartik <kkartik@...dia.com>
---
 drivers/soc/tegra/Kconfig              |  5 +++++
 drivers/soc/tegra/fuse/fuse-tegra.c    |  5 +++++
 drivers/soc/tegra/fuse/fuse-tegra30.c  | 21 +++++++++++++++++++++
 drivers/soc/tegra/fuse/fuse.h          |  4 ++++
 drivers/soc/tegra/fuse/tegra-apbmisc.c |  1 +
 include/soc/tegra/fuse.h               |  1 +
 6 files changed, 37 insertions(+)

diff --git a/drivers/soc/tegra/Kconfig b/drivers/soc/tegra/Kconfig
index 6f3098822969..5f5d9d663fef 100644
--- a/drivers/soc/tegra/Kconfig
+++ b/drivers/soc/tegra/Kconfig
@@ -133,6 +133,11 @@ config ARCH_TEGRA_234_SOC
 	help
 	  Enable support for the NVIDIA Tegra234 SoC.
 
+config ARCH_TEGRA_241_SOC
+	bool "NVIDIA Tegra241 SoC"
+	help
+	  Enable support for the NVIDIA Tegra241 SoC.
+
 endif
 endif
 
diff --git a/drivers/soc/tegra/fuse/fuse-tegra.c b/drivers/soc/tegra/fuse/fuse-tegra.c
index f35f9651a653..eb11465e8092 100644
--- a/drivers/soc/tegra/fuse/fuse-tegra.c
+++ b/drivers/soc/tegra/fuse/fuse-tegra.c
@@ -172,6 +172,11 @@ static int tegra_fuse_probe(struct platform_device *pdev)
 		case TEGRA234:
 			fuse->soc = &tegra234_fuse_soc;
 			break;
+#endif
+#if defined(CONFIG_ARCH_TEGRA_241_SOC)
+		case TEGRA241:
+			fuse->soc = &tegra241_fuse_soc;
+			break;
 #endif
 		default:
 			return dev_err_probe(&pdev->dev, -EINVAL, "Unsupported SoC: %02x\n", chip);
diff --git a/drivers/soc/tegra/fuse/fuse-tegra30.c b/drivers/soc/tegra/fuse/fuse-tegra30.c
index e94d46372a63..34fcc23a6449 100644
--- a/drivers/soc/tegra/fuse/fuse-tegra30.c
+++ b/drivers/soc/tegra/fuse/fuse-tegra30.c
@@ -678,3 +678,24 @@ const struct tegra_fuse_soc tegra234_fuse_soc = {
 	.clk_suspend_on = false,
 };
 #endif
+
+#if defined(CONFIG_ARCH_TEGRA_241_SOC)
+static const struct tegra_fuse_info tegra241_fuse_info = {
+	.read = tegra30_fuse_read,
+	.size = 0x16008,
+	.spare = 0xcf0,
+};
+
+static const struct nvmem_keepout tegra241_fuse_keepouts[] = {
+	{ .start = 0xc, .end = 0x1600c }
+};
+
+const struct tegra_fuse_soc tegra241_fuse_soc = {
+	.init = tegra30_fuse_init,
+	.info = &tegra241_fuse_info,
+	.keepouts = tegra241_fuse_keepouts,
+	.num_keepouts = ARRAY_SIZE(tegra241_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 a41e9f85281a..f3b705327c20 100644
--- a/drivers/soc/tegra/fuse/fuse.h
+++ b/drivers/soc/tegra/fuse/fuse.h
@@ -136,4 +136,8 @@ extern const struct tegra_fuse_soc tegra194_fuse_soc;
 extern const struct tegra_fuse_soc tegra234_fuse_soc;
 #endif
 
+#ifdef CONFIG_ARCH_TEGRA_241_SOC
+extern const struct tegra_fuse_soc tegra241_fuse_soc;
+#endif
+
 #endif
diff --git a/drivers/soc/tegra/fuse/tegra-apbmisc.c b/drivers/soc/tegra/fuse/tegra-apbmisc.c
index ce8c3c25b6a6..f5b241a527c2 100644
--- a/drivers/soc/tegra/fuse/tegra-apbmisc.c
+++ b/drivers/soc/tegra/fuse/tegra-apbmisc.c
@@ -64,6 +64,7 @@ bool tegra_is_silicon(void)
 	switch (tegra_get_chip_id()) {
 	case TEGRA194:
 	case TEGRA234:
+	case TEGRA241:
 	case TEGRA264:
 		if (tegra_get_platform() == 0)
 			return true;
diff --git a/include/soc/tegra/fuse.h b/include/soc/tegra/fuse.h
index 3a513be50243..8f421b9f7585 100644
--- a/include/soc/tegra/fuse.h
+++ b/include/soc/tegra/fuse.h
@@ -17,6 +17,7 @@
 #define TEGRA186	0x18
 #define TEGRA194	0x19
 #define TEGRA234	0x23
+#define TEGRA241	0x24
 #define TEGRA264	0x26
 
 #define TEGRA_FUSE_SKU_CALIB_0	0xf0
-- 
2.34.1