[PATCH v2 11/15] clk: sunxi-ng: a523: remaining mod clocks

Andre Przywara
2025-02-14T12:56:27Z

Add the remaining mod clocks, driving various parts of the SoC: the "LEDC"
LED controller, the "CSI" camera interface, the "ISP" image processor,
the DSP clock, and the "fanout" clocks, which allow to put clock signals
on external pins.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
---
drivers/clk/sunxi-ng/ccu-sun55i-a523.c | 190 +++++++++++++++++++++++++
1 file changed, 190 insertions(+)

diff --git a/drivers/clk/sunxi-ng/ccu-sun55i-a523.c b/drivers/clk/sunxi-ng/ccu-sun55i-a523.c
index 59cc31f89ae77..6a4340f1fd041 100644
--- a/drivers/clk/sunxi-ng/ccu-sun55i-a523.c
+++ b/drivers/clk/sunxi-ng/ccu-sun55i-a523.c
@@ -354,6 +354,7 @@ static SUNXI_CCU_M_DATA_WITH_MUX(apb0_clk, "apb0", ahb_apb0_parents, 0x520,
0, 5, /* M */
24, 2, /* mux */
0);
+static const struct clk_hw *apb0_hws[] = { &apb0_clk.common.hw };

static const struct clk_parent_data apb1_parents[] = {
{ .fw_name = "hosc" },
@@ -832,6 +833,153 @@ static SUNXI_CCU_M_HW_WITH_MUX_GATE(edp_clk, "edp", edp_parents, 0xbb0,
BIT(31), /* gate */
0);

+static SUNXI_CCU_M_DATA_WITH_MUX_GATE(ledc_clk, "ledc", ir_tx_ledc_parents,
+ 0xbf0,
+ 0, 4, /* M */
+ 24, 1, /* mux */
+ BIT(31), /* gate */
+ 0);
+
+static const struct clk_hw *csi_top_parents[] = {
+ &pll_periph0_300M_clk.hw,
+ &pll_periph0_400M_clk.hw,
+ &pll_periph0_480M_clk.common.hw,
+ &pll_video3_4x_clk.common.hw,
+ &pll_video3_3x_clk.hw,
+};
+static SUNXI_CCU_M_HW_WITH_MUX_GATE(csi_top_clk, "csi-top", csi_top_parents,
+ 0xc04,
+ 0, 5, /* M */
+ 24, 3, /* mux */
+ BIT(31), /* gate */
+ 0);
+
+static const struct clk_parent_data csi_mclk_parents[] = {
+ { .fw_name = "hosc" },
+ { .hw = &pll_video3_4x_clk.common.hw },
+ { .hw = &pll_video0_4x_clk.common.hw },
+ { .hw = &pll_video1_4x_clk.common.hw },
+ { .hw = &pll_video2_4x_clk.common.hw },
+};
+static SUNXI_CCU_MP_DATA_WITH_MUX_GATE(csi_mclk0_clk, "csi-mclk0",
+ csi_mclk_parents, 0xc08,
+ 0, 5, /* M */
+ 8, 5, /* P */
+ 24, 3, /* mux */
+ BIT(31), /* gate */
+ 0);
+
+static SUNXI_CCU_MP_DATA_WITH_MUX_GATE(csi_mclk1_clk, "csi-mclk1",
+ csi_mclk_parents, 0xc0c,
+ 0, 5, /* M */
+ 8, 5, /* P */
+ 24, 3, /* mux */
+ BIT(31), /* gate */
+ 0);
+
+static SUNXI_CCU_MP_DATA_WITH_MUX_GATE(csi_mclk2_clk, "csi-mclk2",
+ csi_mclk_parents, 0xc10,
+ 0, 5, /* M */
+ 8, 5, /* P */
+ 24, 3, /* mux */
+ BIT(31), /* gate */
+ 0);
+
+static SUNXI_CCU_MP_DATA_WITH_MUX_GATE(csi_mclk3_clk, "csi-mclk3",
+ csi_mclk_parents, 0xc14,
+ 0, 5, /* M */
+ 8, 5, /* P */
+ 24, 3, /* mux */
+ BIT(31), /* gate */
+ 0);
+
+static const struct clk_hw *isp_parents[] = {
+ &pll_periph0_300M_clk.hw,
+ &pll_periph0_400M_clk.hw,
+ &pll_video2_4x_clk.common.hw,
+ &pll_video3_4x_clk.common.hw,
+};
+static SUNXI_CCU_M_HW_WITH_MUX_GATE(isp_clk, "isp", isp_parents, 0xc20,
+ 0, 5, /* M */
+ 24, 3, /* mux */
+ BIT(31), /* gate */
+ 0);
+
+static const struct clk_parent_data dsp_parents[] = {
+ { .fw_name = "hosc" },
+ { .fw_name = "losc" },
+ { .fw_name = "iosc" },
+ { .hw = &pll_periph0_2x_clk.common.hw },
+ { .hw = &pll_periph0_400M_clk.hw, },
+};
+static SUNXI_CCU_M_DATA_WITH_MUX_GATE(dsp_clk, "dsp", dsp_parents, 0xc70,
+ 0, 5, /* M */
+ 24, 3, /* mux */
+ BIT(31), /* gate */
+ 0);
+
+static SUNXI_CCU_GATE_DATA(fanout_24M_clk, "fanout-24M", osc24M,
+ 0xf30, BIT(0), 0);
+static SUNXI_CCU_GATE_DATA_WITH_PREDIV(fanout_12M_clk, "fanout-12M", osc24M,
+ 0xf30, BIT(1), 2, 0);
+static SUNXI_CCU_GATE_HWS_WITH_PREDIV(fanout_16M_clk, "fanout-16M",
+ pll_periph0_480M_hws,
+ 0xf30, BIT(2), 30, 0);
+static SUNXI_CCU_GATE_HWS_WITH_PREDIV(fanout_25M_clk, "fanout-25M",
+ pll_periph0_2x_hws,
+ 0xf30, BIT(3), 48, 0);
+static SUNXI_CCU_GATE_HWS_WITH_PREDIV(fanout_50M_clk, "fanout-50M",
+ pll_periph0_2x_hws,
+ 0xf30, BIT(4), 24, 0);
+
+/* These clocks have a second divider that is not modelled and forced to 0. */
+#define SUN55I_A523_FANOUT_27M_REG 0xf34
+static const struct clk_hw *fanout_27M_parents[] = {
+ &pll_video0_4x_clk.common.hw,
+ &pll_video1_4x_clk.common.hw,
+ &pll_video2_4x_clk.common.hw,
+ &pll_video3_4x_clk.common.hw,
+};
+static SUNXI_CCU_M_HW_WITH_MUX_GATE(fanout_27M_clk, "fanout-27M",
+ fanout_27M_parents, 0xf34,
+ 0, 5, /* M */
+ 24, 2, /* mux */
+ BIT(31), /* gate */
+ 0);
+
+#define SUN55I_A523_FANOUT_PCLK_REG 0xf38
+static SUNXI_CCU_M_HWS_WITH_GATE(fanout_pclk_clk, "fanout-pclk", apb0_hws,
+ 0xf38,
+ 0, 5, /* M */
+ BIT(31), /* gate */
+ 0);
+
+static const struct clk_parent_data fanout_parents[] = {
+ { .fw_name = "osc32k-out" },
+ { .hw = &fanout_12M_clk.common.hw, },
+ { .hw = &fanout_16M_clk.common.hw, },
+ { .hw = &fanout_24M_clk.common.hw, },
+ { .hw = &fanout_25M_clk.common.hw, },
+ { .hw = &fanout_27M_clk.common.hw, },
+ { .hw = &fanout_pclk_clk.common.hw, },
+ { .hw = &fanout_50M_clk.common.hw, },
+};
+static SUNXI_CCU_MUX_DATA_WITH_GATE(fanout0_clk, "fanout0", fanout_parents,
+ 0xf3c,
+ 0, 3, /* mux */
+ BIT(21), /* gate */
+ 0);
+static SUNXI_CCU_MUX_DATA_WITH_GATE(fanout1_clk, "fanout1", fanout_parents,
+ 0xf3c,
+ 3, 3, /* mux */
+ BIT(22), /* gate */
+ 0);
+static SUNXI_CCU_MUX_DATA_WITH_GATE(fanout2_clk, "fanout2", fanout_parents,
+ 0xf3c,
+ 6, 3, /* mux */
+ BIT(23), /* gate */
+ 0);
+
/*
* Contains all clocks that are controlled by a hardware register. They
* have a (sunxi) .common member, which needs to be initialised by the common
@@ -904,6 +1052,23 @@ static struct ccu_common *sun55i_a523_ccu_clks[] = {
&tcon_tv0_clk.common,
&tcon_tv1_clk.common,
&edp_clk.common,
+ &ledc_clk.common,
+ &csi_top_clk.common,
+ &csi_mclk0_clk.common,
+ &csi_mclk1_clk.common,
+ &csi_mclk2_clk.common,
+ &csi_mclk3_clk.common,
+ &isp_clk.common,
+ &dsp_clk.common,
+ &fanout_24M_clk.common,
+ &fanout_12M_clk.common,
+ &fanout_16M_clk.common,
+ &fanout_25M_clk.common,
+ &fanout_27M_clk.common,
+ &fanout_pclk_clk.common,
+ &fanout0_clk.common,
+ &fanout1_clk.common,
+ &fanout2_clk.common,
};

static struct clk_hw_onecell_data sun55i_a523_hw_clks = {
@@ -997,6 +1162,23 @@ static struct clk_hw_onecell_data sun55i_a523_hw_clks = {
[CLK_TCON_TV0] = &tcon_tv0_clk.common.hw,
[CLK_TCON_TV1] = &tcon_tv1_clk.common.hw,
[CLK_EDP] = &edp_clk.common.hw,
+ [CLK_LEDC] = &ledc_clk.common.hw,
+ [CLK_CSI_TOP] = &csi_top_clk.common.hw,
+ [CLK_CSI_MCLK0] = &csi_mclk0_clk.common.hw,
+ [CLK_CSI_MCLK1] = &csi_mclk1_clk.common.hw,
+ [CLK_CSI_MCLK2] = &csi_mclk2_clk.common.hw,
+ [CLK_CSI_MCLK3] = &csi_mclk3_clk.common.hw,
+ [CLK_ISP] = &isp_clk.common.hw,
+ [CLK_DSP] = &dsp_clk.common.hw,
+ [CLK_FANOUT_24M] = &fanout_24M_clk.common.hw,
+ [CLK_FANOUT_12M] = &fanout_12M_clk.common.hw,
+ [CLK_FANOUT_16M] = &fanout_16M_clk.common.hw,
+ [CLK_FANOUT_25M] = &fanout_25M_clk.common.hw,
+ [CLK_FANOUT_27M] = &fanout_27M_clk.common.hw,
+ [CLK_FANOUT_PCLK] = &fanout_pclk_clk.common.hw,
+ [CLK_FANOUT0] = &fanout0_clk.common.hw,
+ [CLK_FANOUT1] = &fanout1_clk.common.hw,
+ [CLK_FANOUT2] = &fanout2_clk.common.hw,
},
};

@@ -1048,6 +1230,14 @@ static int sun55i_a523_ccu_probe(struct platform_device *pdev)
val &= ~(BIT(1) | BIT(0));
writel(val, reg + SUN55I_A523_PLL_AUDIO0_REG);

+ /* Force fanout factors N to 0. */
+ val = readl(reg + SUN55I_A523_FANOUT_27M_REG);
+ val &= ~GENMASK(12, 8);
+ writel(val, reg + SUN55I_A523_FANOUT_27M_REG);
+ val = readl(reg + SUN55I_A523_FANOUT_PCLK_REG);
+ val &= ~GENMASK(9, 5);
+ writel(val, reg + SUN55I_A523_FANOUT_PCLK_REG);
+
ret = devm_sunxi_ccu_probe(&pdev->dev, reg, &sun55i_a523_ccu_desc);
if (ret)
return ret;
--
2.46.3