diff options
Diffstat (limited to 'drivers/clk/mediatek/clk-mt8365-apmixedsys.c')
| -rw-r--r-- | drivers/clk/mediatek/clk-mt8365-apmixedsys.c | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt8365-apmixedsys.c b/drivers/clk/mediatek/clk-mt8365-apmixedsys.c new file mode 100644 index 0000000000..9b0bc5daea --- /dev/null +++ b/drivers/clk/mediatek/clk-mt8365-apmixedsys.c @@ -0,0 +1,166 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2022 MediaTek Inc. + * Copyright (c) 2023 Collabora Ltd. + */ + +#include <dt-bindings/clock/mediatek,mt8365-clk.h> +#include <linux/clk.h> +#include <linux/of.h> +#include <linux/platform_device.h> + +#include "clk-pll.h" +#include "clk-mtk.h" + +#define MT8365_PLL_FMAX (3800UL * MHZ) +#define MT8365_PLL_FMIN (1500UL * MHZ) +#define CON0_MT8365_RST_BAR BIT(23) + +#define PLL_B(_id, _name, _reg, _pwr_reg, _en_mask, _flags, _pcwbits, \ + _pd_reg, _pd_shift, _tuner_reg, _tuner_en_reg, \ + _tuner_en_bit, _pcw_reg, _pcw_shift, _div_table, \ + _rst_bar_mask, _pcw_chg_reg) { \ + .id = _id, \ + .name = _name, \ + .reg = _reg, \ + .pwr_reg = _pwr_reg, \ + .en_mask = _en_mask, \ + .flags = _flags, \ + .rst_bar_mask = _rst_bar_mask, \ + .fmax = MT8365_PLL_FMAX, \ + .fmin = MT8365_PLL_FMIN, \ + .pcwbits = _pcwbits, \ + .pcwibits = 8, \ + .pd_reg = _pd_reg, \ + .pd_shift = _pd_shift, \ + .tuner_reg = _tuner_reg, \ + .tuner_en_reg = _tuner_en_reg, \ + .tuner_en_bit = _tuner_en_bit, \ + .pcw_reg = _pcw_reg, \ + .pcw_shift = _pcw_shift, \ + .pcw_chg_reg = _pcw_chg_reg, \ + .div_table = _div_table, \ + } + +#define PLL(_id, _name, _reg, _pwr_reg, _en_mask, _flags, _pcwbits, \ + _pd_reg, _pd_shift, _tuner_reg, \ + _tuner_en_reg, _tuner_en_bit, _pcw_reg, \ + _pcw_shift, _rst_bar_mask, _pcw_chg_reg) \ + PLL_B(_id, _name, _reg, _pwr_reg, _en_mask, _flags, \ + _pcwbits, _pd_reg, _pd_shift, \ + _tuner_reg, _tuner_en_reg, _tuner_en_bit, \ + _pcw_reg, _pcw_shift, NULL, _rst_bar_mask, \ + _pcw_chg_reg) \ + +static const struct mtk_pll_div_table armpll_div_table[] = { + { .div = 0, .freq = MT8365_PLL_FMAX }, + { .div = 1, .freq = 1500 * MHZ }, + { .div = 2, .freq = 750 * MHZ }, + { .div = 3, .freq = 375 * MHZ }, + { .div = 4, .freq = 182500000 }, + { } /* sentinel */ +}; + +static const struct mtk_pll_div_table mfgpll_div_table[] = { + { .div = 0, .freq = MT8365_PLL_FMAX }, + { .div = 1, .freq = 1600 * MHZ }, + { .div = 2, .freq = 800 * MHZ }, + { .div = 3, .freq = 400 * MHZ }, + { .div = 4, .freq = 200 * MHZ }, + { } /* sentinel */ +}; + +static const struct mtk_pll_div_table dsppll_div_table[] = { + { .div = 0, .freq = MT8365_PLL_FMAX }, + { .div = 1, .freq = 1600 * MHZ }, + { .div = 2, .freq = 600 * MHZ }, + { .div = 3, .freq = 400 * MHZ }, + { .div = 4, .freq = 200 * MHZ }, + { } /* sentinel */ +}; + +static const struct mtk_pll_data plls[] = { + PLL_B(CLK_APMIXED_ARMPLL, "armpll", 0x030C, 0x0318, 0x00000001, PLL_AO, + 22, 0x0310, 24, 0, 0, 0, 0x0310, 0, armpll_div_table, 0, 0), + PLL(CLK_APMIXED_MAINPLL, "mainpll", 0x0228, 0x0234, 0xFF000001, + HAVE_RST_BAR, 22, 0x022C, 24, 0, 0, 0, 0x022C, 0, CON0_MT8365_RST_BAR, 0), + PLL(CLK_APMIXED_UNIVPLL, "univpll2", 0x0208, 0x0214, 0xFF000001, + HAVE_RST_BAR, 22, 0x020C, 24, 0, 0, 0, 0x020C, 0, CON0_MT8365_RST_BAR, 0), + PLL_B(CLK_APMIXED_MFGPLL, "mfgpll", 0x0218, 0x0224, 0x00000001, 0, 22, + 0x021C, 24, 0, 0, 0, 0x021C, 0, mfgpll_div_table, 0, 0), + PLL(CLK_APMIXED_MSDCPLL, "msdcpll", 0x0350, 0x035C, 0x00000001, 0, 22, + 0x0354, 24, 0, 0, 0, 0x0354, 0, 0, 0), + PLL(CLK_APMIXED_MMPLL, "mmpll", 0x0330, 0x033C, 0x00000001, 0, 22, + 0x0334, 24, 0, 0, 0, 0x0334, 0, 0, 0), + PLL(CLK_APMIXED_APLL1, "apll1", 0x031C, 0x032C, 0x00000001, 0, 32, + 0x0320, 24, 0x0040, 0x000C, 0, 0x0324, 0, 0, 0x0320), + PLL(CLK_APMIXED_APLL2, "apll2", 0x0360, 0x0370, 0x00000001, 0, 32, + 0x0364, 24, 0x004C, 0x000C, 5, 0x0368, 0, 0, 0x0364), + PLL(CLK_APMIXED_LVDSPLL, "lvdspll", 0x0374, 0x0380, 0x00000001, 0, 22, + 0x0378, 24, 0, 0, 0, 0x0378, 0, 0, 0), + PLL_B(CLK_APMIXED_DSPPLL, "dsppll", 0x0390, 0x039C, 0x00000001, 0, 22, + 0x0394, 24, 0, 0, 0, 0x0394, 0, dsppll_div_table, 0, 0), + PLL(CLK_APMIXED_APUPLL, "apupll", 0x03A0, 0x03AC, 0x00000001, 0, 22, + 0x03A4, 24, 0, 0, 0, 0x03A4, 0, 0, 0), +}; + +static int clk_mt8365_apmixed_probe(struct platform_device *pdev) +{ + void __iomem *base; + struct clk_hw_onecell_data *clk_data; + struct device_node *node = pdev->dev.of_node; + struct device *dev = &pdev->dev; + struct clk_hw *hw; + int ret; + + base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(base)) + return PTR_ERR(base); + + clk_data = mtk_devm_alloc_clk_data(dev, CLK_APMIXED_NR_CLK); + if (!clk_data) + return -ENOMEM; + + hw = devm_clk_hw_register_gate(dev, "univ_en", "univpll2", 0, + base + 0x204, 0, 0, NULL); + if (IS_ERR(hw)) + return PTR_ERR(hw); + clk_data->hws[CLK_APMIXED_UNIV_EN] = hw; + + hw = devm_clk_hw_register_gate(dev, "usb20_en", "univ_en", 0, + base + 0x204, 1, 0, NULL); + if (IS_ERR(hw)) + return PTR_ERR(hw); + clk_data->hws[CLK_APMIXED_USB20_EN] = hw; + + ret = mtk_clk_register_plls(node, plls, ARRAY_SIZE(plls), clk_data); + if (ret) + return ret; + + ret = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data); + if (ret) + goto unregister_plls; + + return 0; + +unregister_plls: + mtk_clk_unregister_plls(plls, ARRAY_SIZE(plls), clk_data); + + return ret; +} + +static const struct of_device_id of_match_clk_mt8365_apmixed[] = { + { .compatible = "mediatek,mt8365-apmixedsys" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, of_match_clk_mt8365_apmixed); + +static struct platform_driver clk_mt8365_apmixed_drv = { + .probe = clk_mt8365_apmixed_probe, + .driver = { + .name = "clk-mt8365-apmixed", + .of_match_table = of_match_clk_mt8365_apmixed, + }, +}; +builtin_platform_driver(clk_mt8365_apmixed_drv) +MODULE_LICENSE("GPL"); |