From 871f38fefb7142038faa50292215d8e19e8366ca Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Wed, 24 May 2023 10:31:38 +0200 Subject: [PATCH 398/414] PM / devfreq: rockchip-dfi: Add RK3568 support This adds RK3568 support to the DFI driver. Only iniitialization differs from the currently supported RK3399. Signed-off-by: Sascha Hauer --- drivers/devfreq/event/rockchip-dfi.c | 21 +++++++++++++++++++++ include/soc/rockchip/rk3568_grf.h | 12 ++++++++++++ 2 files changed, 33 insertions(+) create mode 100644 include/soc/rockchip/rk3568_grf.h --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -23,6 +23,7 @@ #include #include +#include #define DMC_MAX_CHANNELS 2 @@ -209,10 +210,30 @@ static int rk3399_dfi_init(struct rockch return 0; }; +static int rk3568_dfi_init(struct rockchip_dfi *dfi) +{ + struct regmap *regmap_pmu = dfi->regmap_pmu; + u32 reg2, reg3; + + regmap_read(regmap_pmu, RK3568_PMUGRF_OS_REG2, ®2); + regmap_read(regmap_pmu, RK3568_PMUGRF_OS_REG3, ®3); + + dfi->ddr_type = FIELD_GET(RK3568_PMUGRF_OS_REG2_DRAMTYPE_INFO, reg2); + + if (FIELD_GET(RK3568_PMUGRF_OS_REG3_SYSREG_VERSION, reg3) >= 0x3) + dfi->ddr_type |= FIELD_GET(RK3568_PMUGRF_OS_REG3_DRAMTYPE_INFO_V3, reg3) << 3; + + dfi->channel_mask = 1; + + return 0; +}; + static const struct of_device_id rockchip_dfi_id_match[] = { { .compatible = "rockchip,rk3399-dfi", .data = rk3399_dfi_init }, + { .compatible = "rockchip,rk3568-dfi", .data = rk3568_dfi_init }, { }, }; + MODULE_DEVICE_TABLE(of, rockchip_dfi_id_match); static int rockchip_dfi_probe(struct platform_device *pdev) --- /dev/null +++ b/include/soc/rockchip/rk3568_grf.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +#ifndef __SOC_RK3568_GRF_H +#define __SOC_RK3568_GRF_H + +#define RK3568_PMUGRF_OS_REG2 0x208 +#define RK3568_PMUGRF_OS_REG2_DRAMTYPE_INFO GENMASK(15, 13) + +#define RK3568_PMUGRF_OS_REG3 0x20c +#define RK3568_PMUGRF_OS_REG3_DRAMTYPE_INFO_V3 GENMASK(13, 12) +#define RK3568_PMUGRF_OS_REG3_SYSREG_VERSION GENMASK(31, 28) + +#endif /* __SOC_RK3568_GRF_H */