Add chip-id support for Exynos850 SoC. Despite its "E3830" ID, the
actual SoC name is Exynos850 (Exynos3830 name is internal and outdated).
Format of Product_ID register in Exynos850 (offset 0x0):
[31:0] Product ID (identification)
Format of CHIPID_REV register in Exynos850 (offset 0x10):
[23:20] Main revision
[19:16] Sub revision
Signed-off-by: Sam Protsenko <semen.protsenko@xxxxxxxxxx>
---
Changes in v2:
- Renamed *_rev_bit fields in 'struct exynos_chipid_variant' to
*_rev_shift
Changes in v3:
- Rebased on top of krzk/for-next
- Added Exynos850 chip-id registers format in commit message
drivers/soc/samsung/exynos-chipid.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/soc/samsung/exynos-chipid.c b/drivers/soc/samsung/exynos-chipid.c
index 986978e83661..0aeb24bcc11a 100644
--- a/drivers/soc/samsung/exynos-chipid.c
+++ b/drivers/soc/samsung/exynos-chipid.c
@@ -55,6 +55,7 @@ static const struct exynos_soc_id {
{ "EXYNOS5440", 0xE5440000 },
{ "EXYNOS5800", 0xE5422000 },
{ "EXYNOS7420", 0xE7420000 },
+ { "EXYNOS850", 0xE3830000 },
};
static const char *product_id_to_soc_id(unsigned int product_id)
@@ -169,10 +170,19 @@ static const struct exynos_chipid_variant exynos4210_chipid_drv_data = {
.sub_rev_shift = 0,
};
+static const struct exynos_chipid_variant exynos850_chipid_drv_data = {
+ .rev_reg = 0x10,
+ .main_rev_shift = 20,
+ .sub_rev_shift = 16,
+};
+
static const struct of_device_id exynos_chipid_of_device_ids[] = {
{
.compatible = "samsung,exynos4210-chipid",
.data = &exynos4210_chipid_drv_data,
+ }, {
+ .compatible = "samsung,exynos850-chipid",
+ .data = &exynos850_chipid_drv_data,
},
{ }
};
--
2.30.2
