diff options
Diffstat (limited to 'drivers/clk/mediatek/clk-mt7988-eth.c')
| -rw-r--r-- | drivers/clk/mediatek/clk-mt7988-eth.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt7988-eth.c b/drivers/clk/mediatek/clk-mt7988-eth.c new file mode 100644 index 000000000000..adf4a9d39b38 --- /dev/null +++ b/drivers/clk/mediatek/clk-mt7988-eth.c @@ -0,0 +1,150 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2023 MediaTek Inc. + * Author: Sam Shih <sam.shih@mediatek.com> + * Author: Xiufeng Li <Xiufeng.Li@mediatek.com> + */ + +#include <linux/clk-provider.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_device.h> +#include <linux/platform_device.h> +#include "clk-mtk.h" +#include "clk-gate.h" +#include "reset.h" +#include <dt-bindings/clock/mediatek,mt7988-clk.h> +#include <dt-bindings/reset/mediatek,mt7988-resets.h> + +static const struct mtk_gate_regs ethdma_cg_regs = { + .set_ofs = 0x30, + .clr_ofs = 0x30, + .sta_ofs = 0x30, +}; + +#define GATE_ETHDMA(_id, _name, _parent, _shift) \ + { \ + .id = _id, \ + .name = _name, \ + .parent_name = _parent, \ + .regs = ðdma_cg_regs, \ + .shift = _shift, \ + .ops = &mtk_clk_gate_ops_no_setclr_inv, \ + } + +static const struct mtk_gate ethdma_clks[] = { + GATE_ETHDMA(CLK_ETHDMA_XGP1_EN, "ethdma_xgp1_en", "top_xtal", 0), + GATE_ETHDMA(CLK_ETHDMA_XGP2_EN, "ethdma_xgp2_en", "top_xtal", 1), + GATE_ETHDMA(CLK_ETHDMA_XGP3_EN, "ethdma_xgp3_en", "top_xtal", 2), + GATE_ETHDMA(CLK_ETHDMA_FE_EN, "ethdma_fe_en", "netsys_2x_sel", 6), + GATE_ETHDMA(CLK_ETHDMA_GP2_EN, "ethdma_gp2_en", "top_xtal", 7), + GATE_ETHDMA(CLK_ETHDMA_GP1_EN, "ethdma_gp1_en", "top_xtal", 8), + GATE_ETHDMA(CLK_ETHDMA_GP3_EN, "ethdma_gp3_en", "top_xtal", 10), + GATE_ETHDMA(CLK_ETHDMA_ESW_EN, "ethdma_esw_en", "netsys_gsw_sel", 16), + GATE_ETHDMA(CLK_ETHDMA_CRYPT0_EN, "ethdma_crypt0_en", "eip197_sel", 29), +}; + +static const struct mtk_clk_desc ethdma_desc = { + .clks = ethdma_clks, + .num_clks = ARRAY_SIZE(ethdma_clks), +}; + +static const struct mtk_gate_regs sgmii_cg_regs = { + .set_ofs = 0xe4, + .clr_ofs = 0xe4, + .sta_ofs = 0xe4, +}; + +#define GATE_SGMII(_id, _name, _parent, _shift) \ + { \ + .id = _id, \ + .name = _name, \ + .parent_name = _parent, \ + .regs = &sgmii_cg_regs, \ + .shift = _shift, \ + .ops = &mtk_clk_gate_ops_no_setclr_inv, \ + } + +static const struct mtk_gate sgmii0_clks[] = { + GATE_SGMII(CLK_SGM0_TX_EN, "sgm0_tx_en", "top_xtal", 2), + GATE_SGMII(CLK_SGM0_RX_EN, "sgm0_rx_en", "top_xtal", 3), +}; + +static const struct mtk_clk_desc sgmii0_desc = { + .clks = sgmii0_clks, + .num_clks = ARRAY_SIZE(sgmii0_clks), +}; + +static const struct mtk_gate sgmii1_clks[] = { + GATE_SGMII(CLK_SGM1_TX_EN, "sgm1_tx_en", "top_xtal", 2), + GATE_SGMII(CLK_SGM1_RX_EN, "sgm1_rx_en", "top_xtal", 3), +}; + +static const struct mtk_clk_desc sgmii1_desc = { + .clks = sgmii1_clks, + .num_clks = ARRAY_SIZE(sgmii1_clks), +}; + +static const struct mtk_gate_regs ethwarp_cg_regs = { + .set_ofs = 0x14, + .clr_ofs = 0x14, + .sta_ofs = 0x14, +}; + +#define GATE_ETHWARP(_id, _name, _parent, _shift) \ + { \ + .id = _id, \ + .name = _name, \ + .parent_name = _parent, \ + .regs = ðwarp_cg_regs, \ + .shift = _shift, \ + .ops = &mtk_clk_gate_ops_no_setclr_inv, \ + } + +static const struct mtk_gate ethwarp_clks[] = { + GATE_ETHWARP(CLK_ETHWARP_WOCPU2_EN, "ethwarp_wocpu2_en", "netsys_mcu_sel", 13), + GATE_ETHWARP(CLK_ETHWARP_WOCPU1_EN, "ethwarp_wocpu1_en", "netsys_mcu_sel", 14), + GATE_ETHWARP(CLK_ETHWARP_WOCPU0_EN, "ethwarp_wocpu0_en", "netsys_mcu_sel", 15), +}; + +static u16 ethwarp_rst_ofs[] = { 0x8 }; + +static u16 ethwarp_idx_map[] = { + [MT7988_ETHWARP_RST_SWITCH] = 9, +}; + +static const struct mtk_clk_rst_desc ethwarp_rst_desc = { + .version = MTK_RST_SIMPLE, + .rst_bank_ofs = ethwarp_rst_ofs, + .rst_bank_nr = ARRAY_SIZE(ethwarp_rst_ofs), + .rst_idx_map = ethwarp_idx_map, + .rst_idx_map_nr = ARRAY_SIZE(ethwarp_idx_map), +}; + +static const struct mtk_clk_desc ethwarp_desc = { + .clks = ethwarp_clks, + .num_clks = ARRAY_SIZE(ethwarp_clks), + .rst_desc = ðwarp_rst_desc, +}; + +static const struct of_device_id of_match_clk_mt7988_eth[] = { + { .compatible = "mediatek,mt7988-ethsys", .data = ðdma_desc }, + { .compatible = "mediatek,mt7988-sgmiisys0", .data = &sgmii0_desc }, + { .compatible = "mediatek,mt7988-sgmiisys1", .data = &sgmii1_desc }, + { .compatible = "mediatek,mt7988-ethwarp", .data = ðwarp_desc }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, of_match_clk_mt7988_eth); + +static struct platform_driver clk_mt7988_eth_drv = { + .driver = { + .name = "clk-mt7988-eth", + .of_match_table = of_match_clk_mt7988_eth, + }, + .probe = mtk_clk_simple_probe, + .remove_new = mtk_clk_simple_remove, +}; +module_platform_driver(clk_mt7988_eth_drv); + +MODULE_DESCRIPTION("MediaTek MT7988 Ethernet clocks driver"); +MODULE_LICENSE("GPL"); |