From 431e9cab7097b5d5eb3cf2b04d4b12d272df85e0 Mon Sep 17 00:00:00 2001 From: Yong Wu Date: Tue, 14 Sep 2021 19:37:01 +0800 Subject: memory: mtk-smi: mt8195: Add initial setting for smi-common To improve the performance, add initial setting for smi-common. some register use some fix setting(suggested from DE). Signed-off-by: Yong Wu Link: https://lore.kernel.org/r/20210914113703.31466-12-yong.wu@mediatek.com Signed-off-by: Krzysztof Kozlowski --- drivers/memory/mtk-smi.c | 42 ++++++++++++++++++++++++++++++++++++++---- 1 file changed, 38 insertions(+), 4 deletions(-) (limited to 'drivers/memory') diff --git a/drivers/memory/mtk-smi.c b/drivers/memory/mtk-smi.c index 35853ba980c9..689a45b39a65 100644 --- a/drivers/memory/mtk-smi.c +++ b/drivers/memory/mtk-smi.c @@ -18,11 +18,19 @@ #include /* SMI COMMON */ +#define SMI_L1LEN 0x100 + #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_M4U_TH 0x234 +#define SMI_FIFO_TH1 0x238 +#define SMI_FIFO_TH2 0x23c +#define SMI_DCM 0x300 +#define SMI_DUMMY 0x444 + /* SMI LARB */ /* Below are about mmu enable registers, they are different in SoCs */ @@ -59,6 +67,13 @@ (_id << 8 | _id << 10 | _id << 12 | _id << 14); \ }) +#define SMI_COMMON_INIT_REGS_NR 6 + +struct mtk_smi_reg_pair { + unsigned int offset; + u32 value; +}; + enum mtk_smi_type { MTK_SMI_GEN1, MTK_SMI_GEN2, /* gen2 smi common */ @@ -85,6 +100,8 @@ struct mtk_smi_common_plat { enum mtk_smi_type type; bool has_gals; u32 bus_sel; /* Balance some larbs to enter mmu0 or mmu1 */ + + const struct mtk_smi_reg_pair *init; }; struct mtk_smi_larb_gen { @@ -419,6 +436,15 @@ static struct platform_driver mtk_smi_larb_driver = { } }; +static const struct mtk_smi_reg_pair mtk_smi_common_mt8195_init[SMI_COMMON_INIT_REGS_NR] = { + {SMI_L1LEN, 0xb}, + {SMI_M4U_TH, 0xe100e10}, + {SMI_FIFO_TH1, 0x506090a}, + {SMI_FIFO_TH2, 0x506090a}, + {SMI_DCM, 0x4f1}, + {SMI_DUMMY, 0x1}, +}; + static const struct mtk_smi_common_plat mtk_smi_common_gen1 = { .type = MTK_SMI_GEN1, }; @@ -453,12 +479,14 @@ static const struct mtk_smi_common_plat mtk_smi_common_mt8195_vdo = { .has_gals = true, .bus_sel = F_MMU1_LARB(1) | F_MMU1_LARB(3) | F_MMU1_LARB(5) | F_MMU1_LARB(7), + .init = mtk_smi_common_mt8195_init, }; static const struct mtk_smi_common_plat mtk_smi_common_mt8195_vpp = { .type = MTK_SMI_GEN2, .has_gals = true, .bus_sel = F_MMU1_LARB(1) | F_MMU1_LARB(2) | F_MMU1_LARB(7), + .init = mtk_smi_common_mt8195_init, }; static const struct mtk_smi_common_plat mtk_smi_sub_common_mt8195 = { @@ -551,15 +579,21 @@ static int mtk_smi_common_remove(struct platform_device *pdev) static int __maybe_unused mtk_smi_common_resume(struct device *dev) { struct mtk_smi *common = dev_get_drvdata(dev); - u32 bus_sel = common->plat->bus_sel; - int ret; + const struct mtk_smi_reg_pair *init = common->plat->init; + u32 bus_sel = common->plat->bus_sel; /* default is 0 */ + int ret, i; ret = clk_bulk_prepare_enable(common->clk_num, common->clks); if (ret) return ret; - if (common->plat->type == MTK_SMI_GEN2 && bus_sel) - writel(bus_sel, common->base + SMI_BUS_SEL); + if (common->plat->type != MTK_SMI_GEN2) + return 0; + + for (i = 0; i < SMI_COMMON_INIT_REGS_NR && init && init[i].offset; i++) + writel_relaxed(init[i].value, common->base + init[i].offset); + + writel(bus_sel, common->base + SMI_BUS_SEL); return 0; } -- cgit v1.2.3-59-g8ed1b