72 lines
2.2 KiB
Diff
72 lines
2.2 KiB
Diff
From 871f38fefb7142038faa50292215d8e19e8366ca Mon Sep 17 00:00:00 2001
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From: Sascha Hauer <s.hauer@pengutronix.de>
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Date: Wed, 24 May 2023 10:31:38 +0200
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Subject: [PATCH 398/414] PM / devfreq: rockchip-dfi: Add RK3568 support
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This adds RK3568 support to the DFI driver. Only iniitialization
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differs from the currently supported RK3399.
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Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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---
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drivers/devfreq/event/rockchip-dfi.c | 21 +++++++++++++++++++++
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include/soc/rockchip/rk3568_grf.h | 12 ++++++++++++
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2 files changed, 33 insertions(+)
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create mode 100644 include/soc/rockchip/rk3568_grf.h
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--- a/drivers/devfreq/event/rockchip-dfi.c
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+++ b/drivers/devfreq/event/rockchip-dfi.c
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@@ -23,6 +23,7 @@
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#include <soc/rockchip/rockchip_grf.h>
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#include <soc/rockchip/rk3399_grf.h>
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+#include <soc/rockchip/rk3568_grf.h>
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#define DMC_MAX_CHANNELS 2
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@@ -209,10 +210,30 @@ static int rk3399_dfi_init(struct rockch
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return 0;
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};
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+static int rk3568_dfi_init(struct rockchip_dfi *dfi)
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+{
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+ struct regmap *regmap_pmu = dfi->regmap_pmu;
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+ u32 reg2, reg3;
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+
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+ regmap_read(regmap_pmu, RK3568_PMUGRF_OS_REG2, ®2);
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+ regmap_read(regmap_pmu, RK3568_PMUGRF_OS_REG3, ®3);
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+
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+ dfi->ddr_type = FIELD_GET(RK3568_PMUGRF_OS_REG2_DRAMTYPE_INFO, reg2);
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+
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+ if (FIELD_GET(RK3568_PMUGRF_OS_REG3_SYSREG_VERSION, reg3) >= 0x3)
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+ dfi->ddr_type |= FIELD_GET(RK3568_PMUGRF_OS_REG3_DRAMTYPE_INFO_V3, reg3) << 3;
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+
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+ dfi->channel_mask = 1;
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+
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+ return 0;
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+};
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+
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static const struct of_device_id rockchip_dfi_id_match[] = {
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{ .compatible = "rockchip,rk3399-dfi", .data = rk3399_dfi_init },
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+ { .compatible = "rockchip,rk3568-dfi", .data = rk3568_dfi_init },
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{ },
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};
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+
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MODULE_DEVICE_TABLE(of, rockchip_dfi_id_match);
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static int rockchip_dfi_probe(struct platform_device *pdev)
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--- /dev/null
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+++ b/include/soc/rockchip/rk3568_grf.h
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@@ -0,0 +1,12 @@
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+/* SPDX-License-Identifier: GPL-2.0+ */
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+#ifndef __SOC_RK3568_GRF_H
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+#define __SOC_RK3568_GRF_H
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+
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+#define RK3568_PMUGRF_OS_REG2 0x208
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+#define RK3568_PMUGRF_OS_REG2_DRAMTYPE_INFO GENMASK(15, 13)
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+
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+#define RK3568_PMUGRF_OS_REG3 0x20c
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+#define RK3568_PMUGRF_OS_REG3_DRAMTYPE_INFO_V3 GENMASK(13, 12)
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+#define RK3568_PMUGRF_OS_REG3_SYSREG_VERSION GENMASK(31, 28)
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+
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+#endif /* __SOC_RK3568_GRF_H */
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