clk: AST2600: Add mux for EMMC clock (c2407ab3) · Commits · 戴 / test

drivers/clk/clk-ast2600.c

+41 −8

Original line number	Diff line number	Diff line
		@@ -131,6 +131,18 @@ static const struct clk_div_table ast2600_eclk_div_table[] = {
		{ 0 }
		};

		static const struct clk_div_table ast2600_emmc_extclk_div_table[] = {
		{ 0x0, 2 },
		{ 0x1, 4 },
		{ 0x2, 6 },
		{ 0x3, 8 },
		{ 0x4, 10 },
		{ 0x5, 12 },
		{ 0x6, 14 },
		{ 0x7, 16 },
		{ 0 }
		};

		static const struct clk_div_table ast2600_mac_div_table[] = {
		{ 0x0, 4 },
		{ 0x1, 4 },
		@@ -390,6 +402,11 @@ static struct clk_hw aspeed_g6_clk_hw_register_gate(struct device dev,
		return hw;
		}

		static const char *const emmc_extclk_parent_names[] = {
		"emmc_extclk_hpll_in",
		"mpll",
		};

		static const char * const vclk_parent_names[] = {
		"dpll",
		"d1pll",
		@@ -459,15 +476,31 @@ static int aspeed_g6_clk_probe(struct platform_device *pdev)
		return PTR_ERR(hw);
		aspeed_g6_clk_data->hws[ASPEED_CLK_UARTX] = hw;

		/* EMMC ext clock divider */
		hw = clk_hw_register_gate(dev, "emmc_extclk_gate", "hpll", 0,
		scu_g6_base + ASPEED_G6_CLK_SELECTION1, 15, 0,
		&aspeed_g6_clk_lock);
		/* EMMC ext clock */
		hw = clk_hw_register_fixed_factor(dev, "emmc_extclk_hpll_in", "hpll",
		0, 1, 2);
		if (IS_ERR(hw))
		return PTR_ERR(hw);
		hw = clk_hw_register_divider_table(dev, "emmc_extclk", "emmc_extclk_gate", 0,
		scu_g6_base + ASPEED_G6_CLK_SELECTION1, 12, 3, 0,
		ast2600_div_table,

		hw = clk_hw_register_mux(dev, "emmc_extclk_mux",
		emmc_extclk_parent_names,
		ARRAY_SIZE(emmc_extclk_parent_names), 0,
		scu_g6_base + ASPEED_G6_CLK_SELECTION1, 11, 1,
		0, &aspeed_g6_clk_lock);
		if (IS_ERR(hw))
		return PTR_ERR(hw);

		hw = clk_hw_register_gate(dev, "emmc_extclk_gate", "emmc_extclk_mux",
		0, scu_g6_base + ASPEED_G6_CLK_SELECTION1,
		15, 0, &aspeed_g6_clk_lock);
		if (IS_ERR(hw))
		return PTR_ERR(hw);

		hw = clk_hw_register_divider_table(dev, "emmc_extclk",
		"emmc_extclk_gate", 0,
		scu_g6_base +
		ASPEED_G6_CLK_SELECTION1, 12,
		3, 0, ast2600_emmc_extclk_div_table,
		&aspeed_g6_clk_lock);
		if (IS_ERR(hw))
		return PTR_ERR(hw);

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