From 4b4719437d85f0173d344f2c76fa1a5b7f7d184b Mon Sep 17 00:00:00 2001 From: Sam Shih Date: Sun, 17 Dec 2023 21:50:15 +0000 Subject: clk: mediatek: add drivers for MT7988 SoC Add APMIXED, ETH, INFRACFG and TOPCKGEN clock drivers which are typical MediaTek designs. Also add driver for XFIPLL clock generating the 156.25MHz clock for the XFI SerDes. It needs an undocumented software workaround and has an unknown internal design. Signed-off-by: Sam Shih Signed-off-by: Daniel Golle Reviewed-by: AngeloGioacchino Del Regno Link: https://lore.kernel.org/r/c7574d808e2da1a530182f0fd790c1337c336e1b.1702849494.git.daniel@makrotopia.org [sboyd@kernel.org: Add module license to infracfg file] Signed-off-by: Stephen Boyd --- drivers/clk/mediatek/clk-mt7988-apmixed.c | 114 ++++++++++++++++++++++++++++++ 1 file changed, 114 insertions(+) create mode 100644 drivers/clk/mediatek/clk-mt7988-apmixed.c (limited to 'drivers/clk/mediatek/clk-mt7988-apmixed.c') diff --git a/drivers/clk/mediatek/clk-mt7988-apmixed.c b/drivers/clk/mediatek/clk-mt7988-apmixed.c new file mode 100644 index 000000000000..baf9564351a3 --- /dev/null +++ b/drivers/clk/mediatek/clk-mt7988-apmixed.c @@ -0,0 +1,114 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2023 MediaTek Inc. + * Author: Sam Shih + * Author: Xiufeng Li + */ + +#include +#include +#include +#include +#include +#include "clk-mtk.h" +#include "clk-gate.h" +#include "clk-mux.h" +#include "clk-pll.h" +#include + +#define MT7988_PLL_FMAX (2500UL * MHZ) +#define MT7988_PCW_CHG_BIT 2 + +#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) \ + { \ + .id = _id, \ + .name = _name, \ + .reg = _reg, \ + .pwr_reg = _pwr_reg, \ + .en_mask = _en_mask, \ + .flags = _flags, \ + .rst_bar_mask = BIT(_rst_bar_mask), \ + .fmax = MT7988_PLL_FMAX, \ + .pcwbits = _pcwbits, \ + .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, \ + .pcw_chg_bit = MT7988_PCW_CHG_BIT, \ + .parent_name = "clkxtal", \ + } + +static const struct mtk_pll_data plls[] = { + PLL(CLK_APMIXED_NETSYSPLL, "netsyspll", 0x0104, 0x0110, 0x00000001, 0, 0, 32, 0x0104, 4, 0, + 0, 0, 0x0108, 0, 0x0104), + PLL(CLK_APMIXED_MPLL, "mpll", 0x0114, 0x0120, 0xff000001, HAVE_RST_BAR, 23, 32, 0x0114, 4, + 0, 0, 0, 0x0118, 0, 0x0114), + PLL(CLK_APMIXED_MMPLL, "mmpll", 0x0124, 0x0130, 0xff000001, HAVE_RST_BAR, 23, 32, 0x0124, 4, + 0, 0, 0, 0x0128, 0, 0x0124), + PLL(CLK_APMIXED_APLL2, "apll2", 0x0134, 0x0140, 0x00000001, 0, 0, 32, 0x0134, 4, 0x0704, + 0x0700, 1, 0x0138, 0, 0x0134), + PLL(CLK_APMIXED_NET1PLL, "net1pll", 0x0144, 0x0150, 0xff000001, HAVE_RST_BAR, 23, 32, + 0x0144, 4, 0, 0, 0, 0x0148, 0, 0x0144), + PLL(CLK_APMIXED_NET2PLL, "net2pll", 0x0154, 0x0160, 0xff000001, (HAVE_RST_BAR | PLL_AO), 23, + 32, 0x0154, 4, 0, 0, 0, 0x0158, 0, 0x0154), + PLL(CLK_APMIXED_WEDMCUPLL, "wedmcupll", 0x0164, 0x0170, 0x00000001, 0, 0, 32, 0x0164, 4, 0, + 0, 0, 0x0168, 0, 0x0164), + PLL(CLK_APMIXED_SGMPLL, "sgmpll", 0x0174, 0x0180, 0x00000001, 0, 0, 32, 0x0174, 4, 0, 0, 0, + 0x0178, 0, 0x0174), + PLL(CLK_APMIXED_ARM_B, "arm_b", 0x0204, 0x0210, 0xff000001, (HAVE_RST_BAR | PLL_AO), 23, 32, + 0x0204, 4, 0, 0, 0, 0x0208, 0, 0x0204), + PLL(CLK_APMIXED_CCIPLL2_B, "ccipll2_b", 0x0214, 0x0220, 0xff000001, HAVE_RST_BAR, 23, 32, + 0x0214, 4, 0, 0, 0, 0x0218, 0, 0x0214), + PLL(CLK_APMIXED_USXGMIIPLL, "usxgmiipll", 0x0304, 0x0310, 0xff000001, HAVE_RST_BAR, 23, 32, + 0x0304, 4, 0, 0, 0, 0x0308, 0, 0x0304), + PLL(CLK_APMIXED_MSDCPLL, "msdcpll", 0x0314, 0x0320, 0x00000001, 0, 0, 32, 0x0314, 4, 0, 0, + 0, 0x0318, 0, 0x0314), +}; + +static const struct of_device_id of_match_clk_mt7988_apmixed[] = { + { .compatible = "mediatek,mt7988-apmixedsys" }, + { /* sentinel */ } +}; + +static int clk_mt7988_apmixed_probe(struct platform_device *pdev) +{ + struct clk_hw_onecell_data *clk_data; + struct device_node *node = pdev->dev.of_node; + int r; + + clk_data = mtk_alloc_clk_data(ARRAY_SIZE(plls)); + if (!clk_data) + return -ENOMEM; + + r = mtk_clk_register_plls(node, plls, ARRAY_SIZE(plls), clk_data); + if (r) + goto free_apmixed_data; + + r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data); + if (r) + goto unregister_plls; + + return r; + +unregister_plls: + mtk_clk_unregister_plls(plls, ARRAY_SIZE(plls), clk_data); +free_apmixed_data: + mtk_free_clk_data(clk_data); + return r; +} + +static struct platform_driver clk_mt7988_apmixed_drv = { + .probe = clk_mt7988_apmixed_probe, + .driver = { + .name = "clk-mt7988-apmixed", + .of_match_table = of_match_clk_mt7988_apmixed, + }, +}; +builtin_platform_driver(clk_mt7988_apmixed_drv); +MODULE_LICENSE("GPL"); -- cgit v1.2.3