diff options
Diffstat (limited to 'drivers/clk/sunxi-ng/ccu-sun8i-h3.c')
| -rw-r--r-- | drivers/clk/sunxi-ng/ccu-sun8i-h3.c | 233 |
1 files changed, 78 insertions, 155 deletions
diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-h3.c b/drivers/clk/sunxi-ng/ccu-sun8i-h3.c index e71e2451c2e3..740c4c97331c 100644 --- a/drivers/clk/sunxi-ng/ccu-sun8i-h3.c +++ b/drivers/clk/sunxi-ng/ccu-sun8i-h3.c @@ -1,18 +1,13 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2016 Maxime Ripard. All rights reserved. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/clk-provider.h> -#include <linux/of_address.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_device.h> #include "ccu_common.h" #include "ccu_reset.h" @@ -329,6 +324,7 @@ static struct clk_div_table ths_div_table[] = { { .val = 1, .div = 2 }, { .val = 2, .div = 4 }, { .val = 3, .div = 6 }, + { /* Sentinel */ }, }; static SUNXI_CCU_DIV_TABLE_WITH_GATE(ths_clk, "ths", "osc24M", 0x074, 0, 2, ths_div_table, BIT(31), 0); @@ -438,8 +434,13 @@ static SUNXI_CCU_GATE(usb_ohci2_clk, "usb-ohci2", "osc24M", static SUNXI_CCU_GATE(usb_ohci3_clk, "usb-ohci3", "osc24M", 0x0cc, BIT(19), 0); -static const char * const dram_parents[] = { "pll-ddr", "pll-periph0-2x" }; -static SUNXI_CCU_M_WITH_MUX(dram_clk, "dram", dram_parents, +/* H3 has broken MDFS hardware, so the mux/divider cannot be changed. */ +static CLK_FIXED_FACTOR_HW(h3_dram_clk, "dram", + &pll_ddr_clk.common.hw, + 1, 1, CLK_SET_RATE_PARENT | CLK_IS_CRITICAL); + +static const char * const h5_dram_parents[] = { "pll-ddr", "pll-periph0-2x" }; +static SUNXI_CCU_M_WITH_MUX(h5_dram_clk, "dram", h5_dram_parents, 0x0f4, 0, 4, 20, 2, CLK_IS_CRITICAL); static SUNXI_CCU_GATE(dram_ve_clk, "dram-ve", "dram", @@ -566,6 +567,7 @@ static struct ccu_common *sun8i_h3_ccu_clks[] = { &bus_uart2_clk.common, &bus_uart3_clk.common, &bus_scr0_clk.common, + &bus_scr1_clk.common, &bus_ephy_clk.common, &bus_dbg_clk.common, &ths_clk.common, @@ -595,7 +597,7 @@ static struct ccu_common *sun8i_h3_ccu_clks[] = { &usb_ohci1_clk.common, &usb_ohci2_clk.common, &usb_ohci3_clk.common, - &dram_clk.common, + &h5_dram_clk.common, &dram_ve_clk.common, &dram_csi_clk.common, &dram_deinterlace_clk.common, @@ -616,125 +618,26 @@ static struct ccu_common *sun8i_h3_ccu_clks[] = { &gpu_clk.common, }; -static struct ccu_common *sun50i_h5_ccu_clks[] = { - &pll_cpux_clk.common, - &pll_audio_base_clk.common, - &pll_video_clk.common, - &pll_ve_clk.common, - &pll_ddr_clk.common, - &pll_periph0_clk.common, - &pll_gpu_clk.common, - &pll_periph1_clk.common, - &pll_de_clk.common, - &cpux_clk.common, - &axi_clk.common, - &ahb1_clk.common, - &apb1_clk.common, - &apb2_clk.common, - &ahb2_clk.common, - &bus_ce_clk.common, - &bus_dma_clk.common, - &bus_mmc0_clk.common, - &bus_mmc1_clk.common, - &bus_mmc2_clk.common, - &bus_nand_clk.common, - &bus_dram_clk.common, - &bus_emac_clk.common, - &bus_ts_clk.common, - &bus_hstimer_clk.common, - &bus_spi0_clk.common, - &bus_spi1_clk.common, - &bus_otg_clk.common, - &bus_ehci0_clk.common, - &bus_ehci1_clk.common, - &bus_ehci2_clk.common, - &bus_ehci3_clk.common, - &bus_ohci0_clk.common, - &bus_ohci1_clk.common, - &bus_ohci2_clk.common, - &bus_ohci3_clk.common, - &bus_ve_clk.common, - &bus_tcon0_clk.common, - &bus_tcon1_clk.common, - &bus_deinterlace_clk.common, - &bus_csi_clk.common, - &bus_tve_clk.common, - &bus_hdmi_clk.common, - &bus_de_clk.common, - &bus_gpu_clk.common, - &bus_msgbox_clk.common, - &bus_spinlock_clk.common, - &bus_codec_clk.common, - &bus_spdif_clk.common, - &bus_pio_clk.common, - &bus_ths_clk.common, - &bus_i2s0_clk.common, - &bus_i2s1_clk.common, - &bus_i2s2_clk.common, - &bus_i2c0_clk.common, - &bus_i2c1_clk.common, - &bus_i2c2_clk.common, - &bus_uart0_clk.common, - &bus_uart1_clk.common, - &bus_uart2_clk.common, - &bus_uart3_clk.common, - &bus_scr0_clk.common, - &bus_scr1_clk.common, - &bus_ephy_clk.common, - &bus_dbg_clk.common, - &ths_clk.common, - &nand_clk.common, - &mmc0_clk.common, - &mmc1_clk.common, - &mmc2_clk.common, - &ts_clk.common, - &ce_clk.common, - &spi0_clk.common, - &spi1_clk.common, - &i2s0_clk.common, - &i2s1_clk.common, - &i2s2_clk.common, - &spdif_clk.common, - &usb_phy0_clk.common, - &usb_phy1_clk.common, - &usb_phy2_clk.common, - &usb_phy3_clk.common, - &usb_ohci0_clk.common, - &usb_ohci1_clk.common, - &usb_ohci2_clk.common, - &usb_ohci3_clk.common, - &dram_clk.common, - &dram_ve_clk.common, - &dram_csi_clk.common, - &dram_deinterlace_clk.common, - &dram_ts_clk.common, - &de_clk.common, - &tcon_clk.common, - &tve_clk.common, - &deinterlace_clk.common, - &csi_misc_clk.common, - &csi_sclk_clk.common, - &csi_mclk_clk.common, - &ve_clk.common, - &ac_dig_clk.common, - &avs_clk.common, - &hdmi_clk.common, - &hdmi_ddc_clk.common, - &mbus_clk.common, - &gpu_clk.common, +static const struct clk_hw *clk_parent_pll_audio[] = { + &pll_audio_base_clk.common.hw }; /* We hardcode the divider to 1 for now */ -static CLK_FIXED_FACTOR(pll_audio_clk, "pll-audio", - "pll-audio-base", 1, 1, CLK_SET_RATE_PARENT); -static CLK_FIXED_FACTOR(pll_audio_2x_clk, "pll-audio-2x", - "pll-audio-base", 2, 1, CLK_SET_RATE_PARENT); -static CLK_FIXED_FACTOR(pll_audio_4x_clk, "pll-audio-4x", - "pll-audio-base", 1, 1, CLK_SET_RATE_PARENT); -static CLK_FIXED_FACTOR(pll_audio_8x_clk, "pll-audio-8x", - "pll-audio-base", 1, 2, CLK_SET_RATE_PARENT); -static CLK_FIXED_FACTOR(pll_periph0_2x_clk, "pll-periph0-2x", - "pll-periph0", 1, 2, 0); +static CLK_FIXED_FACTOR_HWS(pll_audio_clk, "pll-audio", + clk_parent_pll_audio, + 1, 1, CLK_SET_RATE_PARENT); +static CLK_FIXED_FACTOR_HWS(pll_audio_2x_clk, "pll-audio-2x", + clk_parent_pll_audio, + 2, 1, CLK_SET_RATE_PARENT); +static CLK_FIXED_FACTOR_HWS(pll_audio_4x_clk, "pll-audio-4x", + clk_parent_pll_audio, + 1, 1, CLK_SET_RATE_PARENT); +static CLK_FIXED_FACTOR_HWS(pll_audio_8x_clk, "pll-audio-8x", + clk_parent_pll_audio, + 1, 2, CLK_SET_RATE_PARENT); +static CLK_FIXED_FACTOR_HW(pll_periph0_2x_clk, "pll-periph0-2x", + &pll_periph0_clk.common.hw, + 1, 2, 0); static struct clk_hw_onecell_data sun8i_h3_hw_clks = { .hws = { @@ -834,7 +737,7 @@ static struct clk_hw_onecell_data sun8i_h3_hw_clks = { [CLK_USB_OHCI1] = &usb_ohci1_clk.common.hw, [CLK_USB_OHCI2] = &usb_ohci2_clk.common.hw, [CLK_USB_OHCI3] = &usb_ohci3_clk.common.hw, - [CLK_DRAM] = &dram_clk.common.hw, + [CLK_DRAM] = &h3_dram_clk.hw, [CLK_DRAM_VE] = &dram_ve_clk.common.hw, [CLK_DRAM_CSI] = &dram_csi_clk.common.hw, [CLK_DRAM_DEINTERLACE] = &dram_deinterlace_clk.common.hw, @@ -950,7 +853,7 @@ static struct clk_hw_onecell_data sun50i_h5_hw_clks = { [CLK_USB_OHCI1] = &usb_ohci1_clk.common.hw, [CLK_USB_OHCI2] = &usb_ohci2_clk.common.hw, [CLK_USB_OHCI3] = &usb_ohci3_clk.common.hw, - [CLK_DRAM] = &dram_clk.common.hw, + [CLK_DRAM] = &h5_dram_clk.common.hw, [CLK_DRAM_VE] = &dram_ve_clk.common.hw, [CLK_DRAM_CSI] = &dram_csi_clk.common.hw, [CLK_DRAM_DEINTERLACE] = &dram_deinterlace_clk.common.hw, @@ -973,7 +876,7 @@ static struct clk_hw_onecell_data sun50i_h5_hw_clks = { .num = CLK_NUMBER_H5, }; -static struct ccu_reset_map sun8i_h3_ccu_resets[] = { +static const struct ccu_reset_map sun8i_h3_ccu_resets[] = { [RST_USB_PHY0] = { 0x0cc, BIT(0) }, [RST_USB_PHY1] = { 0x0cc, BIT(1) }, [RST_USB_PHY2] = { 0x0cc, BIT(2) }, @@ -1036,7 +939,7 @@ static struct ccu_reset_map sun8i_h3_ccu_resets[] = { [RST_BUS_SCR0] = { 0x2d8, BIT(20) }, }; -static struct ccu_reset_map sun50i_h5_ccu_resets[] = { +static const struct ccu_reset_map sun50i_h5_ccu_resets[] = { [RST_USB_PHY0] = { 0x0cc, BIT(0) }, [RST_USB_PHY1] = { 0x0cc, BIT(1) }, [RST_USB_PHY2] = { 0x0cc, BIT(2) }, @@ -1111,8 +1014,8 @@ static const struct sunxi_ccu_desc sun8i_h3_ccu_desc = { }; static const struct sunxi_ccu_desc sun50i_h5_ccu_desc = { - .ccu_clks = sun50i_h5_ccu_clks, - .num_ccu_clks = ARRAY_SIZE(sun50i_h5_ccu_clks), + .ccu_clks = sun8i_h3_ccu_clks, + .num_ccu_clks = ARRAY_SIZE(sun8i_h3_ccu_clks), .hw_clks = &sun50i_h5_hw_clks, @@ -1134,24 +1037,29 @@ static struct ccu_mux_nb sun8i_h3_cpu_nb = { .bypass_index = 1, /* index of 24 MHz oscillator */ }; -static void __init sunxi_h3_h5_ccu_init(struct device_node *node, - const struct sunxi_ccu_desc *desc) +static int sun8i_h3_ccu_probe(struct platform_device *pdev) { + const struct sunxi_ccu_desc *desc; void __iomem *reg; + int ret; u32 val; - reg = of_io_request_and_map(node, 0, of_node_full_name(node)); - if (IS_ERR(reg)) { - pr_err("%pOF: Could not map the clock registers\n", node); - return; - } + desc = of_device_get_match_data(&pdev->dev); + if (!desc) + return -EINVAL; + + reg = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(reg)) + return PTR_ERR(reg); /* Force the PLL-Audio-1x divider to 1 */ val = readl(reg + SUN8I_H3_PLL_AUDIO_REG); val &= ~GENMASK(19, 16); writel(val | (0 << 16), reg + SUN8I_H3_PLL_AUDIO_REG); - sunxi_ccu_probe(node, reg, desc); + ret = devm_sunxi_ccu_probe(&pdev->dev, reg, desc); + if (ret) + return ret; /* Gate then ungate PLL CPU after any rate changes */ ccu_pll_notifier_register(&sun8i_h3_pll_cpu_nb); @@ -1159,18 +1067,33 @@ static void __init sunxi_h3_h5_ccu_init(struct device_node *node, /* Reparent CPU during PLL CPU rate changes */ ccu_mux_notifier_register(pll_cpux_clk.common.hw.clk, &sun8i_h3_cpu_nb); -} -static void __init sun8i_h3_ccu_setup(struct device_node *node) -{ - sunxi_h3_h5_ccu_init(node, &sun8i_h3_ccu_desc); + return 0; } -CLK_OF_DECLARE(sun8i_h3_ccu, "allwinner,sun8i-h3-ccu", - sun8i_h3_ccu_setup); -static void __init sun50i_h5_ccu_setup(struct device_node *node) -{ - sunxi_h3_h5_ccu_init(node, &sun50i_h5_ccu_desc); -} -CLK_OF_DECLARE(sun50i_h5_ccu, "allwinner,sun50i-h5-ccu", - sun50i_h5_ccu_setup); +static const struct of_device_id sun8i_h3_ccu_ids[] = { + { + .compatible = "allwinner,sun8i-h3-ccu", + .data = &sun8i_h3_ccu_desc, + }, + { + .compatible = "allwinner,sun50i-h5-ccu", + .data = &sun50i_h5_ccu_desc, + }, + { } +}; +MODULE_DEVICE_TABLE(of, sun8i_h3_ccu_ids); + +static struct platform_driver sun8i_h3_ccu_driver = { + .probe = sun8i_h3_ccu_probe, + .driver = { + .name = "sun8i-h3-ccu", + .suppress_bind_attrs = true, + .of_match_table = sun8i_h3_ccu_ids, + }, +}; +module_platform_driver(sun8i_h3_ccu_driver); + +MODULE_IMPORT_NS("SUNXI_CCU"); +MODULE_DESCRIPTION("Support for the Allwinner H3 CCU"); +MODULE_LICENSE("GPL"); |