mirror of
git://nv-tegra.nvidia.com/linux-nv-oot.git
synced 2025-12-22 17:25:35 +03:00
5676a53a5b
Various OOT drivers require Tegra chipid to identify the SoC they are running on. Add helper function __tegra_get_chip_id() which use soc_device_match() to identify the SoC chipid on which the kernel is currently running. Loadable drivers/modules can use this to read the chipid. Bug 4416828 Change-Id: I6bdb95ed579b3ade9314468abb0ccc749af7bb89 Signed-off-by: Kartik <kkartik@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3078383 Reviewed-by: Jon Hunter <jonathanh@nvidia.com> Reviewed-by: Viswanath L <viswanathl@nvidia.com> Tested-by: Viswanath L <viswanathl@nvidia.com> GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
91 lines
1.8 KiB
C
91 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Copyright (c) 2022-2024, NVIDIA CORPORATION. All rights reserved.
|
|
*/
|
|
|
|
#include <linux/version.h>
|
|
#include <linux/sys_soc.h>
|
|
#include <soc/tegra/fuse.h>
|
|
|
|
#define FUSE_SKU_INFO 0x10
|
|
|
|
static inline u32 tegra_get_sku_id(void)
|
|
{
|
|
if (!tegra_sku_info.sku_id)
|
|
tegra_fuse_readl(FUSE_SKU_INFO, &tegra_sku_info.sku_id);
|
|
|
|
return tegra_sku_info.sku_id;
|
|
}
|
|
|
|
static inline bool tegra_platform_is_silicon(void)
|
|
{
|
|
const struct soc_device_attribute tegra_soc_attrs[] = {
|
|
{ .revision = "Silicon*" },
|
|
{/* sentinel */}
|
|
};
|
|
|
|
if (soc_device_match(tegra_soc_attrs))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
static inline bool tegra_platform_is_sim(void)
|
|
{
|
|
return !tegra_platform_is_silicon();
|
|
}
|
|
|
|
static inline bool tegra_platform_is_fpga(void)
|
|
{
|
|
const struct soc_device_attribute tegra_soc_attrs[] = {
|
|
{ .revision = "*FPGA" },
|
|
{/* sentinel */}
|
|
};
|
|
|
|
if (soc_device_match(tegra_soc_attrs))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
static inline bool tegra_platform_is_vdk(void)
|
|
{
|
|
const struct soc_device_attribute tegra_soc_attrs[] = {
|
|
{ .revision = "VDK" },
|
|
{/* sentinel */}
|
|
};
|
|
|
|
if (soc_device_match(tegra_soc_attrs))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
/* OOT implementation of upstream API tegra_get_chip_id() */
|
|
static inline u8 __tegra_get_chip_id(void)
|
|
{
|
|
const struct soc_device_attribute tegra194_soc_attrs[] = {
|
|
{ .soc_id = "25" }, /* 0x19 */
|
|
{/* sentinel */}
|
|
};
|
|
const struct soc_device_attribute tegra234_soc_attrs[] = {
|
|
{ .soc_id = "35" }, /* 0x23 */
|
|
{/* sentinel */}
|
|
};
|
|
const struct soc_device_attribute tegra264_soc_attrs[] = {
|
|
{ .soc_id = "38" }, /* 0x26 */
|
|
{/* sentinel */}
|
|
};
|
|
|
|
if (soc_device_match(tegra194_soc_attrs))
|
|
return TEGRA194;
|
|
|
|
if (soc_device_match(tegra234_soc_attrs))
|
|
return TEGRA234;
|
|
|
|
if (soc_device_match(tegra264_soc_attrs))
|
|
return TEGRA264;
|
|
|
|
return 0;
|
|
}
|