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soc: samsung: exynos-chipid: Add Exynos850 support

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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actual SoC name is Exynos850 (Exynos3830 name is internal and outdated).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@linaro.org>
Link: https://lore.kernel.org/r/20211014133508.1210-3-semen.protsenko@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
This commit is contained in:
Sam Protsenko 2021-10-14 16:35:08 +03:00 committed by Krzysztof Kozlowski
parent 0a0124065f
commit 81a51eb6be
1 changed files with 10 additions and 0 deletions
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10
drivers/soc/samsung/exynos-chipid.c
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@ -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,
},
{ }
};