arm: tegra: fuse: support to burn fuses on the field

- follow the new sequence shared by the hardware team
- merge Tegra2 and Tegra3.0 odm fuse burning into a single file

Bug 796825

Original-Change-Id: Ia06d589eba95254a410016dce244375f27e22be0
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Reviewed-on: http://git-master/r/38404
Reviewed-by: Varun Colbert <vcolbert@nvidia.com>
Tested-by: Varun Colbert <vcolbert@nvidia.com>

Rebase-Id: R740d7bd47eaa6231954ae98686272a755a4bce14

1 files changed, 106 insertions, 0 deletions

diff --git a/arch/arm/mach-tegra/include/mach/tegra_odm_fuses.h b/arch/arm/mach-tegra/include/mach/tegra_odm_fuses.h
new file mode 100644
index 000000000000..364e66caea00
--- /dev/null
+++ b/arch/arm/mach-tegra/include/mach/tegra_odm_fuses.h
@@ -0,0 +1,106 @@
+/*
+ * arch/arm/mach-tegra/include/mach/tegra_odm_fuses.h
+ *
+ * Copyright (c) 2011, NVIDIA Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#ifndef __MACH_TEGRA_ODM_FUSES_H
+#define __MACH_TEGRA_ODM_FUSES_H
+
+#define SBK_DEVKEY_STATUS_SZ	sizeof(u32)
+
+/*
+ * fuse io parameters: params with sizes less than a byte are
+ * explicitly mentioned
+ */
+enum fuse_io_param {
+	DEVKEY,
+	JTAG_DIS, /* 1 bit long */
+	/*
+	 * Programming the odm production fuse at the same
+	 * time as the sbk or dev_key is not allowed as it is not possible to
+	 * verify that the sbk or dev_key were programmed correctly.
+	 */
+	ODM_PROD_MODE, /* 1 bit long */
+	SEC_BOOT_DEV_CFG,
+	SEC_BOOT_DEV_SEL, /* 3 bits long */
+	SBK,
+	SW_RSVD, /* 4 bits long */
+	IGNORE_DEV_SEL_STRAPS, /* 1 bit long */
+	ODM_RSVD,
+	SBK_DEVKEY_STATUS,
+	_PARAMS_U32 = 0x7FFFFFFF
+};
+
+#define MAX_PARAMS SBK_DEVKEY_STATUS
+
+/* the order of the members is pre-decided. please do not change */
+struct fuse_data {
+	u32 devkey;
+	u32 jtag_dis;
+	u32 odm_prod_mode;
+	u32 bootdev_cfg;
+	u32 bootdev_sel;
+	u32 sbk[4];
+	u32 sw_rsvd;
+	u32 ignore_devsel_straps;
+	u32 odm_rsvd[8];
+};
+
+/* secondary boot device options */
+enum {
+	SECBOOTDEV_SDMMC,
+	SECBOOTDEV_NOR,
+	SECBOOTDEV_SPI,
+	SECBOOTDEV_NAND,
+	SECBOOTDEV_LBANAND,
+	SECBOOTDEV_MUXONENAND,
+	_SECBOOTDEV_MAX,
+	_SECBOOTDEV_U32 = 0x7FFFFFFF
+};
+
+/*
+ * read the fuse settings
+ * @param: io_param_type - param type enum
+ * @param: size - read size in bytes
+ */
+int tegra_fuse_read(enum fuse_io_param io_param_type, u32 *data, int size);
+
+#define FLAGS_DEVKEY			BIT(DEVKEY)
+#define FLAGS_JTAG_DIS			BIT(JTAG_DIS)
+#define FLAGS_SBK_DEVKEY_STATUS		BIT(SBK_DEVKEY_STATUS)
+#define FLAGS_ODM_PROD_MODE		BIT(ODM_PROD_MODE)
+#define FLAGS_SEC_BOOT_DEV_CFG		BIT(SEC_BOOT_DEV_CFG)
+#define FLAGS_SEC_BOOT_DEV_SEL		BIT(SEC_BOOT_DEV_SEL)
+#define FLAGS_SBK			BIT(SBK)
+#define FLAGS_SW_RSVD			BIT(SW_RSVD)
+#define FLAGS_IGNORE_DEV_SEL_STRAPS	BIT(IGNORE_DEV_SEL_STRAPS)
+#define FLAGS_ODMRSVD			BIT(ODM_RSVD)
+
+/*
+ * Prior to invoking this routine, the caller is responsible for supplying
+ * valid fuse programming voltage.
+ *
+ * @param: pgm_data - entire data to be programmed
+ * @flags: program flags (e.g. FLAGS_DEVKEY)
+ */
+int tegra_fuse_program(struct fuse_data *pgm_data, u32 flags);
+
+/* Disables the fuse programming until the next system reset */
+void tegra_fuse_program_disable(void);
+
+#endif