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PM / devfreq: rockchip-dfi: Add support for rv1126b dfi

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Change-Id: I1f7dca44795afbe787e9bcd661f506dd772f8ee2
Signed-off-by: Zhihuan He <huan.he@rock-chips.com>
This commit is contained in:
Zhihuan He
2025-03-10 16:22:40 +08:00
committed by Tao Huang
parent d7466155ba
commit 7b2e984d67
1 changed files with 42 additions and 0 deletions
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42
drivers/devfreq/event/rockchip-dfi.c
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@@ -56,6 +56,9 @@
#define RK3528_PMUGRF_OS_REG18 0x248
#define RK3528_PMUGRF_OS_REG19 0x24c
#define RV1126B_PMUGRF_OS_REG2 (0x208 + 0x30000)
#define RV1126B_PMUGRF_OS_REG3 (0x20c + 0x30000)
#define MAX_DMC_NUM_CH 4
#define READ_DRAMTYPE_INFO(n) (((n) >> 13) & 0x7)
#define READ_CH_INFO(n) (((n) >> 28) & 0x3)
@@ -78,8 +81,10 @@
#define TIME_CNT_EN (0x10001 << 0)
/* DDRMON_CTRL1 */
#define DDRMON_CTRL1 0x08
#define LPDDR5_BANK_MODE_CTRL1(m) ((0x30000 | ((m) & 0x3)) << 1)
#define LPDDR5_EN_CTRL1 (0x10001 << 0)
#define PART_CLK_GATE_EN ((0x7 << (16 + 4)) | (0x7 << 4))
#define DDRMON_CH0_COUNT_NUM 0x28
#define DDRMON_CH0_DFI_ACCESS_NUM 0x2c
@@ -706,6 +711,40 @@ static __maybe_unused __init int px30_dfi_init(struct platform_device *pdev,
return 0;
}
static __maybe_unused __init int rv1126b_dfi_init(struct platform_device *pdev,
struct rockchip_dfi *data,
struct devfreq_event_desc *desc)
{
struct device_node *np = pdev->dev.of_node, *node;
u32 val_2, val_3;
data->regs = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(data->regs))
return PTR_ERR(data->regs);
/* enable part pclk gate for power save in software mode */
regmap_write(data->regs, DDRMON_CTRL1, PART_CLK_GATE_EN);
node = of_parse_phandle(np, "rockchip,pmugrf", 0);
if (node) {
data->regmap_pmugrf = syscon_node_to_regmap(node);
if (IS_ERR(data->regmap_pmugrf))
return PTR_ERR(data->regmap_pmugrf);
}
regmap_read(data->regmap_pmugrf, RV1126B_PMUGRF_OS_REG2, &val_2);
regmap_read(data->regmap_pmugrf, RV1126B_PMUGRF_OS_REG3, &val_3);
if (READ_SYSREG_VERSION(val_3) >= 0x3)
data->dram_type = READ_DRAMTYPE_INFO_V3(val_2, val_3);
else
data->dram_type = READ_DRAMTYPE_INFO(val_2);
data->ch_msk = 1;
desc->ops = &rockchip_dfi_ops;
return 0;
}
static __maybe_unused __init int rk3128_dfi_init(struct platform_device *pdev,
struct rockchip_dfi *data,
struct devfreq_event_desc *desc)
@@ -916,6 +955,9 @@ static const struct of_device_id rockchip_dfi_id_match[] = {
#endif
#ifdef CONFIG_CPU_RV1126
{ .compatible = "rockchip,rv1126-dfi", .data = px30_dfi_init },
#endif
#ifdef CONFIG_CPU_RV1126B
{ .compatible = "rockchip,rv1126b-dfi", .data = rv1126b_dfi_init },
#endif
{ },
};