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Memory controller drivers for v5.20 

Add MediaTek MT6795 Helio X10 SMI support.
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Merge tag 'memory-controller-drv-5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into arm/drivers

Memory controller drivers for v5.20

Add MediaTek MT6795 Helio X10 SMI support.

* tag 'memory-controller-drv-5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl:
  memory: mtk-smi: Add support for MT6795 Helio X10
  dt-bindings: memory: mtk-smi: Add MT6795 Helio X10 bindings

Link: https://lore.kernel.org/r/20220624081828.33649-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2022-07-01 22:56:38 +02:00
parent aa61fa3e36 0d97f2176d
commit 3ed9222ce7
3 changed files with 19 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.yaml
View File

@ -32,6 +32,7 @@ properties:
- mediatek,mt2701-smi-common
- mediatek,mt2712-smi-common
- mediatek,mt6779-smi-common
- mediatek,mt6795-smi-common
- mediatek,mt8167-smi-common
- mediatek,mt8173-smi-common
- mediatek,mt8183-smi-common

1
Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.yaml
View File

@ -20,6 +20,7 @@ properties:
- mediatek,mt2701-smi-larb
- mediatek,mt2712-smi-larb
- mediatek,mt6779-smi-larb
- mediatek,mt6795-smi-larb
- mediatek,mt8167-smi-larb
- mediatek,mt8173-smi-larb
- mediatek,mt8183-smi-larb

17
drivers/memory/mtk-smi.c
View File

@ -21,11 +21,13 @@
/* SMI COMMON */
#define SMI_L1LEN 0x100
#define SMI_L1_ARB 0x200
#define SMI_BUS_SEL 0x220
#define SMI_BUS_LARB_SHIFT(larbid) ((larbid) << 1)
/* All are MMU0 defaultly. Only specialize mmu1 here. */
#define F_MMU1_LARB(larbid) (0x1 << SMI_BUS_LARB_SHIFT(larbid))
#define SMI_READ_FIFO_TH 0x230
#define SMI_M4U_TH 0x234
#define SMI_FIFO_TH1 0x238
#define SMI_FIFO_TH2 0x23c
@ -360,6 +362,7 @@ static const struct of_device_id mtk_smi_larb_of_ids[] = {
{.compatible = "mediatek,mt2701-smi-larb", .data = &mtk_smi_larb_mt2701},
{.compatible = "mediatek,mt2712-smi-larb", .data = &mtk_smi_larb_mt2712},
{.compatible = "mediatek,mt6779-smi-larb", .data = &mtk_smi_larb_mt6779},
{.compatible = "mediatek,mt6795-smi-larb", .data = &mtk_smi_larb_mt8173},
{.compatible = "mediatek,mt8167-smi-larb", .data = &mtk_smi_larb_mt8167},
{.compatible = "mediatek,mt8173-smi-larb", .data = &mtk_smi_larb_mt8173},
{.compatible = "mediatek,mt8183-smi-larb", .data = &mtk_smi_larb_mt8183},
@ -544,6 +547,13 @@ static struct platform_driver mtk_smi_larb_driver = {
}
};
static const struct mtk_smi_reg_pair mtk_smi_common_mt6795_init[SMI_COMMON_INIT_REGS_NR] = {
{SMI_L1_ARB, 0x1b},
{SMI_M4U_TH, 0xce810c85},
{SMI_FIFO_TH1, 0x43214c8},
{SMI_READ_FIFO_TH, 0x191f},
};
static const struct mtk_smi_reg_pair mtk_smi_common_mt8195_init[SMI_COMMON_INIT_REGS_NR] = {
{SMI_L1LEN, 0xb},
{SMI_M4U_TH, 0xe100e10},
@ -568,6 +578,12 @@ static const struct mtk_smi_common_plat mtk_smi_common_mt6779 = {
F_MMU1_LARB(5) | F_MMU1_LARB(6) | F_MMU1_LARB(7),
};
static const struct mtk_smi_common_plat mtk_smi_common_mt6795 = {
.type = MTK_SMI_GEN2,
.bus_sel = F_MMU1_LARB(0),
.init = mtk_smi_common_mt6795_init,
};
static const struct mtk_smi_common_plat mtk_smi_common_mt8183 = {
.type = MTK_SMI_GEN2,
.has_gals = true,
@ -612,6 +628,7 @@ static const struct of_device_id mtk_smi_common_of_ids[] = {
{.compatible = "mediatek,mt2701-smi-common", .data = &mtk_smi_common_gen1},
{.compatible = "mediatek,mt2712-smi-common", .data = &mtk_smi_common_gen2},
{.compatible = "mediatek,mt6779-smi-common", .data = &mtk_smi_common_mt6779},
{.compatible = "mediatek,mt6795-smi-common", .data = &mtk_smi_common_mt6795},
{.compatible = "mediatek,mt8167-smi-common", .data = &mtk_smi_common_gen2},
{.compatible = "mediatek,mt8173-smi-common", .data = &mtk_smi_common_gen2},
{.compatible = "mediatek,mt8183-smi-common", .data = &mtk_smi_common_mt8183},