diff options
Diffstat (limited to 'drivers/clk/mediatek/clk-mt8192-apmixedsys.c')
| -rw-r--r-- | drivers/clk/mediatek/clk-mt8192-apmixedsys.c | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt8192-apmixedsys.c b/drivers/clk/mediatek/clk-mt8192-apmixedsys.c new file mode 100644 index 000000000000..eafd34297b9a --- /dev/null +++ b/drivers/clk/mediatek/clk-mt8192-apmixedsys.c @@ -0,0 +1,215 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2021 MediaTek Inc. + * Chun-Jie Chen <chun-jie.chen@mediatek.com> + * Copyright (c) 2023 Collabora Ltd. + * AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> + */ + +#include <dt-bindings/clock/mt8192-clk.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include "clk-fhctl.h" +#include "clk-gate.h" +#include "clk-mtk.h" +#include "clk-pll.h" +#include "clk-pllfh.h" + +static const struct mtk_gate_regs apmixed_cg_regs = { + .set_ofs = 0x14, + .clr_ofs = 0x14, + .sta_ofs = 0x14, +}; + +#define GATE_APMIXED(_id, _name, _parent, _shift) \ + GATE_MTK(_id, _name, _parent, &apmixed_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv) + +static const struct mtk_gate apmixed_clks[] = { + GATE_APMIXED(CLK_APMIXED_MIPID26M, "mipid26m", "clk26m", 16), +}; + +#define MT8192_PLL_FMAX (3800UL * MHZ) +#define MT8192_PLL_FMIN (1500UL * MHZ) +#define MT8192_INTEGER_BITS 8 + +#define PLL(_id, _name, _reg, _pwr_reg, _en_mask, _flags, \ + _rst_bar_mask, _pcwbits, _pd_reg, _pd_shift, \ + _tuner_reg, _tuner_en_reg, _tuner_en_bit, \ + _pcw_reg, _pcw_shift, _pcw_chg_reg, \ + _en_reg, _pll_en_bit) { \ + .id = _id, \ + .name = _name, \ + .reg = _reg, \ + .pwr_reg = _pwr_reg, \ + .en_mask = _en_mask, \ + .flags = _flags, \ + .rst_bar_mask = _rst_bar_mask, \ + .fmax = MT8192_PLL_FMAX, \ + .fmin = MT8192_PLL_FMIN, \ + .pcwbits = _pcwbits, \ + .pcwibits = MT8192_INTEGER_BITS, \ + .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, \ + .en_reg = _en_reg, \ + .pll_en_bit = _pll_en_bit, \ + } + +#define PLL_B(_id, _name, _reg, _pwr_reg, _en_mask, _flags, \ + _rst_bar_mask, _pcwbits, _pd_reg, _pd_shift, \ + _tuner_reg, _tuner_en_reg, _tuner_en_bit, \ + _pcw_reg, _pcw_shift) \ + PLL(_id, _name, _reg, _pwr_reg, _en_mask, _flags, \ + _rst_bar_mask, _pcwbits, _pd_reg, _pd_shift, \ + _tuner_reg, _tuner_en_reg, _tuner_en_bit, \ + _pcw_reg, _pcw_shift, 0, 0, 0) + +static const struct mtk_pll_data plls[] = { + PLL_B(CLK_APMIXED_MAINPLL, "mainpll", 0x0340, 0x034c, 0xff000000, + HAVE_RST_BAR, BIT(23), 22, 0x0344, 24, 0, 0, 0, 0x0344, 0), + PLL_B(CLK_APMIXED_UNIVPLL, "univpll", 0x0308, 0x0314, 0xff000000, + HAVE_RST_BAR, BIT(23), 22, 0x030c, 24, 0, 0, 0, 0x030c, 0), + PLL(CLK_APMIXED_USBPLL, "usbpll", 0x03c4, 0x03cc, 0x00000000, + 0, 0, 22, 0x03c4, 24, 0, 0, 0, 0x03c4, 0, 0x03c4, 0x03cc, 2), + PLL_B(CLK_APMIXED_MSDCPLL, "msdcpll", 0x0350, 0x035c, 0x00000000, + 0, 0, 22, 0x0354, 24, 0, 0, 0, 0x0354, 0), + PLL_B(CLK_APMIXED_MMPLL, "mmpll", 0x0360, 0x036c, 0xff000000, + HAVE_RST_BAR, BIT(23), 22, 0x0364, 24, 0, 0, 0, 0x0364, 0), + PLL_B(CLK_APMIXED_ADSPPLL, "adsppll", 0x0370, 0x037c, 0xff000000, + HAVE_RST_BAR, BIT(23), 22, 0x0374, 24, 0, 0, 0, 0x0374, 0), + PLL_B(CLK_APMIXED_MFGPLL, "mfgpll", 0x0268, 0x0274, 0x00000000, + 0, 0, 22, 0x026c, 24, 0, 0, 0, 0x026c, 0), + PLL_B(CLK_APMIXED_TVDPLL, "tvdpll", 0x0380, 0x038c, 0x00000000, + 0, 0, 22, 0x0384, 24, 0, 0, 0, 0x0384, 0), + PLL_B(CLK_APMIXED_APLL1, "apll1", 0x0318, 0x0328, 0x00000000, + 0, 0, 32, 0x031c, 24, 0x0040, 0x000c, 0, 0x0320, 0), + PLL_B(CLK_APMIXED_APLL2, "apll2", 0x032c, 0x033c, 0x00000000, + 0, 0, 32, 0x0330, 24, 0, 0, 0, 0x0334, 0), +}; + +enum fh_pll_id { + FH_ARMPLL_LL, + FH_ARMPLL_BL0, + FH_ARMPLL_BL1, + FH_ARMPLL_BL2, + FH_ARMPLL_BL3, + FH_CCIPLL, + FH_MFGPLL, + FH_MEMPLL, + FH_MPLL, + FH_MMPLL, + FH_MAINPLL, + FH_MSDCPLL, + FH_ADSPPLL, + FH_APUPLL, + FH_TVDPLL, + FH_NR_FH, +}; + +#define FH(_pllid, _fhid, _offset) { \ + .data = { \ + .pll_id = _pllid, \ + .fh_id = _fhid, \ + .fh_ver = FHCTL_PLLFH_V2, \ + .fhx_offset = _offset, \ + .dds_mask = GENMASK(21, 0), \ + .slope0_value = 0x6003c97, \ + .slope1_value = 0x6003c97, \ + .sfstrx_en = BIT(2), \ + .frddsx_en = BIT(1), \ + .fhctlx_en = BIT(0), \ + .tgl_org = BIT(31), \ + .dvfs_tri = BIT(31), \ + .pcwchg = BIT(31), \ + .dt_val = 0x0, \ + .df_val = 0x9, \ + .updnlmt_shft = 16, \ + .msk_frddsx_dys = GENMASK(23, 20), \ + .msk_frddsx_dts = GENMASK(19, 16), \ + }, \ + } + +static struct mtk_pllfh_data pllfhs[] = { + FH(CLK_APMIXED_MFGPLL, FH_MFGPLL, 0xb4), + FH(CLK_APMIXED_MMPLL, FH_MMPLL, 0xf0), + FH(CLK_APMIXED_MAINPLL, FH_MAINPLL, 0x104), + FH(CLK_APMIXED_MSDCPLL, FH_MSDCPLL, 0x118), + FH(CLK_APMIXED_ADSPPLL, FH_ADSPPLL, 0x12c), + FH(CLK_APMIXED_TVDPLL, FH_TVDPLL, 0x154), +}; + +static const struct of_device_id of_match_clk_mt8192_apmixed[] = { + { .compatible = "mediatek,mt8192-apmixedsys" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, of_match_clk_mt8192_apmixed); + +static int clk_mt8192_apmixed_probe(struct platform_device *pdev) +{ + struct clk_hw_onecell_data *clk_data; + struct device_node *node = pdev->dev.of_node; + const u8 *fhctl_node = "mediatek,mt8192-fhctl"; + int r; + + clk_data = mtk_alloc_clk_data(CLK_APMIXED_NR_CLK); + if (!clk_data) + return -ENOMEM; + + fhctl_parse_dt(fhctl_node, pllfhs, ARRAY_SIZE(pllfhs)); + + r = mtk_clk_register_pllfhs(node, plls, ARRAY_SIZE(plls), + pllfhs, ARRAY_SIZE(pllfhs), clk_data); + if (r) + goto free_clk_data; + + r = mtk_clk_register_gates(&pdev->dev, node, apmixed_clks, + ARRAY_SIZE(apmixed_clks), clk_data); + if (r) + goto unregister_plls; + + r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data); + if (r) + goto unregister_gates; + + return r; + +unregister_gates: + mtk_clk_unregister_gates(apmixed_clks, ARRAY_SIZE(apmixed_clks), clk_data); +unregister_plls: + mtk_clk_unregister_pllfhs(plls, ARRAY_SIZE(plls), pllfhs, + ARRAY_SIZE(pllfhs), clk_data); +free_clk_data: + mtk_free_clk_data(clk_data); + return r; +} + +static int clk_mt8192_apmixed_remove(struct platform_device *pdev) +{ + struct device_node *node = pdev->dev.of_node; + struct clk_hw_onecell_data *clk_data = platform_get_drvdata(pdev); + + of_clk_del_provider(node); + mtk_clk_unregister_gates(apmixed_clks, ARRAY_SIZE(apmixed_clks), clk_data); + mtk_clk_unregister_pllfhs(plls, ARRAY_SIZE(plls), pllfhs, + ARRAY_SIZE(pllfhs), clk_data); + mtk_free_clk_data(clk_data); + + return 0; +} + +static struct platform_driver clk_mt8192_apmixed_drv = { + .driver = { + .name = "clk-mt8192-apmixed", + .of_match_table = of_match_clk_mt8192_apmixed, + }, + .probe = clk_mt8192_apmixed_probe, + .remove = clk_mt8192_apmixed_remove, +}; +module_platform_driver(clk_mt8192_apmixed_drv); +MODULE_DESCRIPTION("MediaTek MT8192 apmixed clocks driver"); +MODULE_LICENSE("GPL"); |