From:   David Yang <mmyangfl@gmail.com>
Cc:     David Yang <mmyangfl@gmail.com>,
        Michael Turquette <mturquette@baylibre.com>,
        Stephen Boyd <sboyd@kernel.org>, linux-clk@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH v6 6/6] clk: hisilicon: Add CRG driver for Hi3798MV100 SoC
Date:   Wed, 22 Mar 2023 04:00:27 +0800
Message-Id: <20230321200031.1812026-7-mmyangfl@gmail.com>
In-Reply-To: <20230321200031.1812026-1-mmyangfl@gmail.com>
References: <20230321200031.1812026-1-mmyangfl@gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
To:     unlisted-recipients:; (no To-header on input)
Precedence: bulk

Add CRG driver for Hi3798MV100 SoC. CRG (Clock and Reset Generator) module
generates clock and reset signals used by other module blocks on SoC.

Signed-off-by: David Yang <mmyangfl@gmail.com>
---
 drivers/clk/hisilicon/crg-hi3798.c | 191 ++++++++++++++++++++++++++---
 1 file changed, 175 insertions(+), 16 deletions(-)

diff --git a/drivers/clk/hisilicon/crg-hi3798.c b/drivers/clk/hisilicon/crg-hi3798.c
index 78915bd26..34f92f492 100644
--- a/drivers/clk/hisilicon/crg-hi3798.c
+++ b/drivers/clk/hisilicon/crg-hi3798.c
@@ -42,6 +42,9 @@
 #define HI3798_FIXED_166P5M		84
 #define HI3798_SDIO0_MUX			85
 #define HI3798_COMBPHY0_MUX		86
+#define HI3798_FIXED_3M				87
+#define HI3798_FIXED_15M			88
+#define HI3798_FIXED_83P3M			89
 
 #define HI3798_CRG_NR_CLKS			128
 
@@ -49,13 +52,16 @@ static const struct hisi_fixed_rate_clock hi3798_fixed_rate_clks[] = {
 	{ HISTB_OSC_CLK, "clk_osc", NULL, 0, 24000000, },
 	{ HISTB_APB_CLK, "clk_apb", NULL, 0, 100000000, },
 	{ HISTB_AHB_CLK, "clk_ahb", NULL, 0, 200000000, },
+	{ HI3798_FIXED_3M, "3m", NULL, 0, 3000000, },
 	{ HI3798_FIXED_12M, "12m", NULL, 0, 12000000, },
+	{ HI3798_FIXED_15M, "15m", NULL, 0, 15000000, },
 	{ HI3798_FIXED_24M, "24m", NULL, 0, 24000000, },
 	{ HI3798_FIXED_25M, "25m", NULL, 0, 25000000, },
 	{ HI3798_FIXED_48M, "48m", NULL, 0, 48000000, },
 	{ HI3798_FIXED_50M, "50m", NULL, 0, 50000000, },
 	{ HI3798_FIXED_60M, "60m", NULL, 0, 60000000, },
 	{ HI3798_FIXED_75M, "75m", NULL, 0, 75000000, },
+	{ HI3798_FIXED_83P3M, "83p3m", NULL, 0, 83333333, },
 	{ HI3798_FIXED_100M, "100m", NULL, 0, 100000000, },
 	{ HI3798_FIXED_150M, "150m", NULL, 0, 150000000, },
 	{ HI3798_FIXED_166P5M, "166p5m", NULL, 0, 165000000, },
@@ -71,7 +77,6 @@ struct hi3798_complex_clock {
 	unsigned long	offset;
 	u32		mask;
 	u32		value;
-	const char	*alias;
 };
 
 struct hi3798_clk_complex {
@@ -157,27 +162,12 @@ static int hi3798_clk_register_complex(struct device *dev,
 			return ret;
 		}
 
-		if (clks[i].alias)
-			clk_register_clkdev(clk, clks[i].alias, NULL);
-
 		data->clk_data->hws[clks[i].id] = &p_clk->hw;
 	}
 
 	return 0;
 }
 
-static void hi3798_clk_unregister_complex(const struct hi3798_complex_clock *clks, int nums,
-					  struct hisi_clock_data *data)
-{
-	struct clk **clocks = data->clk_data.clks;
-	int i;
-
-	for (i = 0; i < nums; i++) {
-		if (clocks[clks[i].id])
-			clk_unregister(clocks[clks[i].id]);
-	}
-}
-
 struct hi3798_clks {
 	const struct hisi_gate_clock *gate_clks;
 	int gate_clks_nums;
@@ -464,11 +454,180 @@ static const struct hisi_crg_funcs hi3798cv200_sysctrl_funcs = {
 	.unregister_clks = hi3798cv200_sysctrl_clk_unregister,
 };
 
+/* hi3798MV100 */
+
+static const char *const hi3798mv100_mmc_mux_p[] = {
+		"75m", "100m", "50m", "15m" };
+static u32 hi3798mv100_mmc_mux_table[] = {0, 1, 2, 3};
+
+static struct hisi_mux_clock hi3798mv100_mux_clks[] = {
+	{ HI3798_MMC_MUX, "mmc_mux", hi3798mv100_mmc_mux_p,
+		ARRAY_SIZE(hi3798mv100_mmc_mux_p), CLK_SET_RATE_PARENT,
+		0xa0, 8, 2, 0, hi3798mv100_mmc_mux_table, },
+	{ HI3798_SDIO0_MUX, "sdio0_mux", hi3798mv100_mmc_mux_p,
+		ARRAY_SIZE(hi3798mv100_mmc_mux_p), CLK_SET_RATE_PARENT,
+		0x9c, 8, 2, 0, hi3798mv100_mmc_mux_table, },
+};
+
+static const struct hisi_gate_clock hi3798mv100_gate_clks[] = {
+	/* NAND */
+	/* hi3798MV100 NAND driver does not get into mainline yet,
+	 * expose these clocks when it gets ready */
+	/* { HISTB_NAND_CLK, "clk_nand", "clk_apb",
+		CLK_SET_RATE_PARENT, 0x60, 0, 0, }, */
+	/* UART */
+	{ HISTB_UART1_CLK, "clk_uart1", "3m",
+		CLK_SET_RATE_PARENT | CLK_IS_CRITICAL, 0x68, 0, 0, },
+	{ HISTB_UART2_CLK, "clk_uart2", "83p3m",
+		CLK_SET_RATE_PARENT, 0x68, 4, 0, },
+	/* I2C */
+	{ HISTB_I2C0_CLK, "clk_i2c0", "clk_apb",
+		CLK_SET_RATE_PARENT, 0x6C, 4, 0, },
+	{ HISTB_I2C1_CLK, "clk_i2c1", "clk_apb",
+		CLK_SET_RATE_PARENT, 0x6C, 8, 0, },
+	{ HISTB_I2C2_CLK, "clk_i2c2", "clk_apb",
+		CLK_SET_RATE_PARENT, 0x6C, 12, 0, },
+	/* SPI */
+	{ HISTB_SPI0_CLK, "clk_spi0", "clk_apb",
+		CLK_SET_RATE_PARENT, 0x70, 0, 0, },
+	/* SDIO */
+	{ HISTB_SDIO0_BIU_CLK, "clk_sdio0_biu", "200m",
+		CLK_SET_RATE_PARENT, 0x9c, 0, 0, },
+	{ HISTB_SDIO0_CIU_CLK, "clk_sdio0_ciu", "sdio0_mux",
+		CLK_SET_RATE_PARENT, 0x9c, 1, 0, },
+	/* EMMC */
+	{ HISTB_MMC_BIU_CLK, "clk_mmc_biu", "200m",
+		CLK_SET_RATE_PARENT, 0xa0, 0, 0, },
+	{ HISTB_MMC_CIU_CLK, "clk_mmc_ciu", "mmc_mux",
+		CLK_SET_RATE_PARENT, 0xa0, 1, 0, },
+	/* USB2 */
+	{ HISTB_USB2_BUS_CLK, "clk_u2_bus", "clk_ahb",
+		CLK_SET_RATE_PARENT, 0xb8, 0, 0, },
+	{ HISTB_USB2_PHY_CLK, "clk_u2_phy", "60m",
+		CLK_SET_RATE_PARENT, 0xb8, 4, 0, },
+	{ HISTB_USB2_12M_CLK, "clk_u2_12m", "12m",
+		CLK_SET_RATE_PARENT, 0xb8, 2, 0 },
+	{ HISTB_USB2_48M_CLK, "clk_u2_48m", "48m",
+		CLK_SET_RATE_PARENT, 0xb8, 1, 0 },
+	{ HISTB_USB2_UTMI_CLK, "clk_u2_utmi", "60m",
+		CLK_SET_RATE_PARENT, 0xb8, 5, 0 },
+	{ HISTB_USB2_UTMI_CLK1, "clk_u2_utmi1", "60m",
+		CLK_SET_RATE_PARENT, 0xb8, 6, 0 },
+	{ HISTB_USB2_OTG_UTMI_CLK, "clk_u2_otg_utmi", "60m",
+		CLK_SET_RATE_PARENT, 0xb8, 3, 0 },
+	{ HISTB_USB2_PHY1_REF_CLK, "clk_u2_phy1_ref", "24m",
+		CLK_SET_RATE_PARENT, 0xbc, 0, 0 },
+	{ HISTB_USB2_PHY2_REF_CLK, "clk_u2_phy2_ref", "24m",
+		CLK_SET_RATE_PARENT, 0xbc, 2, 0 },
+	/* USB2 2 */
+	{ HISTB_USB2_2_BUS_CLK, "clk_u2_2_bus", "clk_ahb",
+		CLK_SET_RATE_PARENT, 0x198, 0, 0, },
+	{ HISTB_USB2_2_PHY_CLK, "clk_u2_2_phy", "60m",
+		CLK_SET_RATE_PARENT, 0x198, 4, 0, },
+	{ HISTB_USB2_2_12M_CLK, "clk_u2_2_12m", "12m",
+		CLK_SET_RATE_PARENT, 0x198, 2, 0 },
+	{ HISTB_USB2_2_48M_CLK, "clk_u2_2_48m", "48m",
+		CLK_SET_RATE_PARENT, 0x198, 1, 0 },
+	{ HISTB_USB2_2_UTMI_CLK, "clk_u2_2_utmi", "60m",
+		CLK_SET_RATE_PARENT, 0x198, 5, 0 },
+	{ HISTB_USB2_2_UTMI_CLK1, "clk_u2_2_utmi1", "60m",
+		CLK_SET_RATE_PARENT, 0x198, 6, 0 },
+	{ HISTB_USB2_2_OTG_UTMI_CLK, "clk_u2_2_otg_utmi", "60m",
+		CLK_SET_RATE_PARENT, 0x198, 3, 0 },
+	{ HISTB_USB2_2_PHY1_REF_CLK, "clk_u2_2_phy1_ref", "24m",
+		CLK_SET_RATE_PARENT, 0x190, 0, 0 },
+	{ HISTB_USB2_2_PHY2_REF_CLK, "clk_u2_2_phy2_ref", "24m",
+		CLK_SET_RATE_PARENT, 0x190, 2, 0 },
+	/* USB3 */
+	{ HISTB_USB3_BUS_CLK, "clk_u3_bus", NULL,
+		CLK_SET_RATE_PARENT, 0xb0, 0, 0 },
+	{ HISTB_USB3_UTMI_CLK, "clk_u3_utmi", NULL,
+		CLK_SET_RATE_PARENT, 0xb0, 4, 0 },
+	{ HISTB_USB3_PIPE_CLK, "clk_u3_pipe", NULL,
+		CLK_SET_RATE_PARENT, 0xb0, 3, 0 },
+	{ HISTB_USB3_SUSPEND_CLK, "clk_u3_suspend", NULL,
+		CLK_SET_RATE_PARENT, 0xb0, 2, 0 },
+	/* GPU */
+	{ HISTB_GPU_BUS_CLK, "clk_gpu", "200m",
+		CLK_SET_RATE_PARENT, 0xd4, 0, 0 },
+	/* FEPHY */
+	{ HISTB_FEPHY_CLK, "clk_fephy", "25m",
+		CLK_SET_RATE_PARENT, 0x120, 0, 0, },
+};
+
+static const struct hi3798_complex_clock hi3798mv100_complex_clks[] = {
+	{ HISTB_ETH0_MAC_CLK, "clk_mac0", NULL,
+		CLK_SET_RATE_PARENT, 0xcc, 0xf, 0xb, },
+	{ HISTB_GPU_CORE_CLK, "clk_gpu_gp", "200m",
+		CLK_SET_RATE_PARENT, 0xd4, 0x700, 0x700, },
+};
+
+static const struct hi3798_clks hi3798mv100_crg_clks = {
+	.gate_clks = hi3798mv100_gate_clks,
+	.gate_clks_nums = ARRAY_SIZE(hi3798mv100_gate_clks),
+	.mux_clks = hi3798mv100_mux_clks,
+	.mux_clks_nums = ARRAY_SIZE(hi3798mv100_mux_clks),
+	.phase_clks = hi3798cv200_phase_clks,
+	.phase_clks_nums = ARRAY_SIZE(hi3798cv200_phase_clks),
+	.complex_clks = hi3798mv100_complex_clks,
+	.complex_clks_nums = ARRAY_SIZE(hi3798mv100_complex_clks),
+};
+
+static struct hisi_clock_data *hi3798mv100_clk_register(
+				struct platform_device *pdev)
+{
+	return hi3798_clk_register(pdev, &hi3798mv100_crg_clks);
+}
+
+static void hi3798mv100_clk_unregister(struct platform_device *pdev)
+{
+	hi3798_clk_unregister(pdev, &hi3798mv100_crg_clks);
+}
+
+static const struct hisi_crg_funcs hi3798mv100_crg_funcs = {
+	.register_clks = hi3798mv100_clk_register,
+	.unregister_clks = hi3798mv100_clk_unregister,
+};
+
+static const struct hisi_gate_clock hi3798mv100_sysctrl_gate_clks[] = {
+	{ HISTB_IR_CLK, "clk_ir", "24m",
+		CLK_SET_RATE_PARENT, 0x48, 4, 0, },
+	{ HISTB_TIMER01_CLK, "clk_timer01", "24m",
+		CLK_SET_RATE_PARENT, 0x48, 6, 0, },
+	{ HISTB_UART0_CLK, "clk_uart0", "83p3m",
+		CLK_SET_RATE_PARENT, 0x48, 12, 0, },
+};
+
+static const struct hi3798_clks hi3798mv100_sysctrl_clks = {
+	.gate_clks = hi3798mv100_sysctrl_gate_clks,
+	.gate_clks_nums = ARRAY_SIZE(hi3798mv100_sysctrl_gate_clks),
+};
+
+static struct hisi_clock_data *hi3798mv100_sysctrl_clk_register(
+					struct platform_device *pdev)
+{
+	return hi3798_sysctrl_clk_register(pdev, &hi3798mv100_sysctrl_clks);
+}
+
+static void hi3798mv100_sysctrl_clk_unregister(struct platform_device *pdev)
+{
+	hi3798_sysctrl_clk_unregister(pdev, &hi3798mv100_sysctrl_clks);
+}
+
+static const struct hisi_crg_funcs hi3798mv100_sysctrl_funcs = {
+	.register_clks = hi3798mv100_sysctrl_clk_register,
+	.unregister_clks = hi3798mv100_sysctrl_clk_unregister,
+};
+
 static const struct of_device_id hi3798_crg_match_table[] = {
 	{ .compatible = "hisilicon,hi3798cv200-crg",
 		.data = &hi3798cv200_crg_funcs },
 	{ .compatible = "hisilicon,hi3798cv200-sysctrl",
 		.data = &hi3798cv200_sysctrl_funcs },
+	{ .compatible = "hisilicon,hi3798mv100-crg",
+		.data = &hi3798mv100_crg_funcs },
+	{ .compatible = "hisilicon,hi3798mv100-sysctrl",
+		.data = &hi3798mv100_sysctrl_funcs },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, hi3798_crg_match_table);
-- 
2.39.2