[7/9] soc/tegra: fuse: Add Tegra234 support

From: Thierry Reding <treding@nvidia.com>

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

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 drivers/soc/tegra/fuse/fuse-tegra.c    |  6 +++++-
 drivers/soc/tegra/fuse/fuse-tegra30.c  | 30 ++++++++++++++++++++++++++
 drivers/soc/tegra/fuse/fuse.h          | 10 ++++++++-
 drivers/soc/tegra/fuse/tegra-apbmisc.c |  1 +
 include/soc/tegra/fuse.h               |  1 +
 5 files changed, 46 insertions(+), 2 deletions(-)

On 16/07/2020 15:18, Thierry Reding wrote:
> From: Thierry Reding <treding@nvidia.com>
> 
> Add support for FUSE block found on the Tegra234 SoC, which is largely
> similar to the IP found on previous generations.
> 
> Signed-off-by: Thierry Reding <treding@nvidia.com>
> ---
>  drivers/soc/tegra/fuse/fuse-tegra.c    |  6 +++++-
>  drivers/soc/tegra/fuse/fuse-tegra30.c  | 30 ++++++++++++++++++++++++++
>  drivers/soc/tegra/fuse/fuse.h          | 10 ++++++++-
>  drivers/soc/tegra/fuse/tegra-apbmisc.c |  1 +
>  include/soc/tegra/fuse.h               |  1 +
>  5 files changed, 46 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/soc/tegra/fuse/fuse-tegra.c b/drivers/soc/tegra/fuse/fuse-tegra.c
> index 7e6b6ee59120..94b60a692b51 100644
> --- a/drivers/soc/tegra/fuse/fuse-tegra.c
> +++ b/drivers/soc/tegra/fuse/fuse-tegra.c
> @@ -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)
>  {
> diff --git a/drivers/soc/tegra/fuse/fuse-tegra30.c b/drivers/soc/tegra/fuse/fuse-tegra30.c
> index 85accef41fa1..9ea7f0168457 100644
> --- a/drivers/soc/tegra/fuse/fuse-tegra30.c
> +++ b/drivers/soc/tegra/fuse/fuse-tegra30.c
> @@ -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
> diff --git a/drivers/soc/tegra/fuse/fuse.h b/drivers/soc/tegra/fuse/fuse.h
> index 9d4fc315a007..e057a58e2060 100644
> --- a/drivers/soc/tegra/fuse/fuse.h
> +++ b/drivers/soc/tegra/fuse/fuse.h
> @@ -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
> diff --git a/drivers/soc/tegra/fuse/tegra-apbmisc.c b/drivers/soc/tegra/fuse/tegra-apbmisc.c
> index be6b7fc169ca..6aeac5ea2d70 100644
> --- a/drivers/soc/tegra/fuse/tegra-apbmisc.c
> +++ b/drivers/soc/tegra/fuse/tegra-apbmisc.c
> @@ -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;
>  
> diff --git a/include/soc/tegra/fuse.h b/include/soc/tegra/fuse.h
> index a9db917a1d06..c702bd2911bc 100644
> --- a/include/soc/tegra/fuse.h
> +++ b/include/soc/tegra/fuse.h
> @@ -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
> 


Reviewed-by: Jon Hunter <jonathanh@nvidia.com>

Cheers
Jon