diff options
Diffstat (limited to 'drivers/clk/mediatek/clk-mt7986-eth.c')
| -rw-r--r-- | drivers/clk/mediatek/clk-mt7986-eth.c | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt7986-eth.c b/drivers/clk/mediatek/clk-mt7986-eth.c new file mode 100644 index 000000000000..495d023ccad7 --- /dev/null +++ b/drivers/clk/mediatek/clk-mt7986-eth.c @@ -0,0 +1,132 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2021 MediaTek Inc. + * Author: Sam Shih <sam.shih@mediatek.com> + * Author: Wenzhen Yu <wenzhen.yu@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 <dt-bindings/clock/mt7986-clk.h> + +static const struct mtk_gate_regs sgmii0_cg_regs = { + .set_ofs = 0xe4, + .clr_ofs = 0xe4, + .sta_ofs = 0xe4, +}; + +#define GATE_SGMII0(_id, _name, _parent, _shift) \ + { \ + .id = _id, .name = _name, .parent_name = _parent, \ + .regs = &sgmii0_cg_regs, .shift = _shift, \ + .ops = &mtk_clk_gate_ops_no_setclr_inv, \ + } + +static const struct mtk_gate sgmii0_clks[] __initconst = { + GATE_SGMII0(CLK_SGMII0_TX250M_EN, "sgmii0_tx250m_en", "top_xtal", 2), + GATE_SGMII0(CLK_SGMII0_RX250M_EN, "sgmii0_rx250m_en", "top_xtal", 3), + GATE_SGMII0(CLK_SGMII0_CDR_REF, "sgmii0_cdr_ref", "top_xtal", 4), + GATE_SGMII0(CLK_SGMII0_CDR_FB, "sgmii0_cdr_fb", "top_xtal", 5), +}; + +static const struct mtk_gate_regs sgmii1_cg_regs = { + .set_ofs = 0xe4, + .clr_ofs = 0xe4, + .sta_ofs = 0xe4, +}; + +#define GATE_SGMII1(_id, _name, _parent, _shift) \ + { \ + .id = _id, .name = _name, .parent_name = _parent, \ + .regs = &sgmii1_cg_regs, .shift = _shift, \ + .ops = &mtk_clk_gate_ops_no_setclr_inv, \ + } + +static const struct mtk_gate sgmii1_clks[] __initconst = { + GATE_SGMII1(CLK_SGMII1_TX250M_EN, "sgmii1_tx250m_en", "top_xtal", 2), + GATE_SGMII1(CLK_SGMII1_RX250M_EN, "sgmii1_rx250m_en", "top_xtal", 3), + GATE_SGMII1(CLK_SGMII1_CDR_REF, "sgmii1_cdr_ref", "top_xtal", 4), + GATE_SGMII1(CLK_SGMII1_CDR_FB, "sgmii1_cdr_fb", "top_xtal", 5), +}; + +static const struct mtk_gate_regs eth_cg_regs = { + .set_ofs = 0x30, + .clr_ofs = 0x30, + .sta_ofs = 0x30, +}; + +#define GATE_ETH(_id, _name, _parent, _shift) \ + { \ + .id = _id, .name = _name, .parent_name = _parent, \ + .regs = ð_cg_regs, .shift = _shift, \ + .ops = &mtk_clk_gate_ops_no_setclr_inv, \ + } + +static const struct mtk_gate eth_clks[] __initconst = { + GATE_ETH(CLK_ETH_FE_EN, "eth_fe_en", "netsys_2x_sel", 6), + GATE_ETH(CLK_ETH_GP2_EN, "eth_gp2_en", "sgm_325m_sel", 7), + GATE_ETH(CLK_ETH_GP1_EN, "eth_gp1_en", "sgm_325m_sel", 8), + GATE_ETH(CLK_ETH_WOCPU1_EN, "eth_wocpu1_en", "netsys_mcu_sel", 14), + GATE_ETH(CLK_ETH_WOCPU0_EN, "eth_wocpu0_en", "netsys_mcu_sel", 15), +}; + +static void __init mtk_sgmiisys_0_init(struct device_node *node) +{ + struct clk_onecell_data *clk_data; + int r; + + clk_data = mtk_alloc_clk_data(ARRAY_SIZE(sgmii0_clks)); + + mtk_clk_register_gates(node, sgmii0_clks, ARRAY_SIZE(sgmii0_clks), + clk_data); + + r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); + if (r) + pr_err("%s(): could not register clock provider: %d\n", + __func__, r); +} +CLK_OF_DECLARE(mtk_sgmiisys_0, "mediatek,mt7986-sgmiisys_0", + mtk_sgmiisys_0_init); + +static void __init mtk_sgmiisys_1_init(struct device_node *node) +{ + struct clk_onecell_data *clk_data; + int r; + + clk_data = mtk_alloc_clk_data(ARRAY_SIZE(sgmii1_clks)); + + mtk_clk_register_gates(node, sgmii1_clks, ARRAY_SIZE(sgmii1_clks), + clk_data); + + r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); + + if (r) + pr_err("%s(): could not register clock provider: %d\n", + __func__, r); +} +CLK_OF_DECLARE(mtk_sgmiisys_1, "mediatek,mt7986-sgmiisys_1", + mtk_sgmiisys_1_init); + +static void __init mtk_ethsys_init(struct device_node *node) +{ + struct clk_onecell_data *clk_data; + int r; + + clk_data = mtk_alloc_clk_data(ARRAY_SIZE(eth_clks)); + + mtk_clk_register_gates(node, eth_clks, ARRAY_SIZE(eth_clks), clk_data); + + r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); + + if (r) + pr_err("%s(): could not register clock provider: %d\n", + __func__, r); +} +CLK_OF_DECLARE(mtk_ethsys, "mediatek,mt7986-ethsys_ck", mtk_ethsys_init); |