Commit 1f44febf authored by Thierry Reding's avatar Thierry Reding
Browse files

soc/tegra: fuse: Add Tegra234 support 



Add support for FUSE block found on the Tegra234 SoC, which is largely
similar to the IP found on previous generations.

Reviewed-by: default avatarJon Hunter <jonathanh@nvidia.com>
Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
parent 52e6d399

drivers/soc/tegra/fuse/fuse-tegra.c

+5 −1
Original line number Diff line number Diff line
@@ -49,6 +49,9 @@ static struct tegra_fuse *fuse = &(struct tegra_fuse) { 
};



static const struct of_device_id tegra_fuse_match[] = {

#ifdef CONFIG_ARCH_TEGRA_234_SOC

	{ .compatible = "nvidia,tegra234-efuse", .data = &tegra234_fuse_soc },

#endif

#ifdef CONFIG_ARCH_TEGRA_194_SOC

	{ .compatible = "nvidia,tegra194-efuse", .data = &tegra194_fuse_soc },

#endif
@@ -326,7 +329,8 @@ const struct attribute_group tegra_soc_attr_group = { 
	.attrs = tegra_soc_attr,

};



#ifdef CONFIG_ARCH_TEGRA_194_SOC

#if IS_ENABLED(CONFIG_ARCH_TEGRA_194_SOC) || \

    IS_ENABLED(CONFIG_ARCH_TEGRA_234_SOC)

static ssize_t platform_show(struct device *dev, struct device_attribute *attr,

			     char *buf)

{

drivers/soc/tegra/fuse/fuse-tegra30.c

+30 −0
Original line number Diff line number Diff line
@@ -356,3 +356,33 @@ const struct tegra_fuse_soc tegra194_fuse_soc = { 
	.soc_attr_group = &tegra194_soc_attr_group,

};

#endif



#if defined(CONFIG_ARCH_TEGRA_234_SOC)

static const struct nvmem_cell_lookup tegra234_fuse_lookups[] = {

	{

		.nvmem_name = "fuse",

		.cell_name = "xusb-pad-calibration",

		.dev_id = "3520000.padctl",

		.con_id = "calibration",

	}, {

		.nvmem_name = "fuse",

		.cell_name = "xusb-pad-calibration-ext",

		.dev_id = "3520000.padctl",

		.con_id = "calibration-ext",

	},

};



static const struct tegra_fuse_info tegra234_fuse_info = {

	.read = tegra30_fuse_read,

	.size = 0x300,

	.spare = 0x280,

};



const struct tegra_fuse_soc tegra234_fuse_soc = {

	.init = tegra30_fuse_init,

	.info = &tegra234_fuse_info,

	.lookups = tegra234_fuse_lookups,

	.num_lookups = ARRAY_SIZE(tegra234_fuse_lookups),

	.soc_attr_group = &tegra194_soc_attr_group,

};

#endif

drivers/soc/tegra/fuse/fuse.h

+9 −1
Original line number Diff line number Diff line
@@ -115,9 +115,17 @@ extern const struct tegra_fuse_soc tegra210_fuse_soc; 
extern const struct tegra_fuse_soc tegra186_fuse_soc;

#endif



#if IS_ENABLED(CONFIG_ARCH_TEGRA_194_SOC) || \

    IS_ENABLED(CONFIG_ARCH_TEGRA_234_SOC)

extern const struct attribute_group tegra194_soc_attr_group;

#endif



#ifdef CONFIG_ARCH_TEGRA_194_SOC

extern const struct tegra_fuse_soc tegra194_fuse_soc;

extern const struct attribute_group tegra194_soc_attr_group;

#endif



#ifdef CONFIG_ARCH_TEGRA_234_SOC

extern const struct tegra_fuse_soc tegra234_fuse_soc;

#endif



#endif

drivers/soc/tegra/fuse/tegra-apbmisc.c

+1 −0
Original line number Diff line number Diff line
@@ -56,6 +56,7 @@ bool tegra_is_silicon(void) 
{

	switch (tegra_get_chip_id()) {

	case TEGRA194:

	case TEGRA234:

		if (tegra_get_platform() == 0)

			return true;

include/soc/tegra/fuse.h

+1 −0
Original line number Diff line number Diff line
@@ -14,6 +14,7 @@ 
#define TEGRA210	0x21

#define TEGRA186	0x18

#define TEGRA194	0x19

#define TEGRA234	0x23



#define TEGRA_FUSE_SKU_CALIB_0	0xf0

#define TEGRA30_FUSE_SATA_CALIB	0x124