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path: root/drivers/clk/mediatek/clk-mt7988-eth.c
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-rw-r--r--drivers/clk/mediatek/clk-mt7988-eth.c150
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 0000000000..adf4a9d39b
--- /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 = &ethdma_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 = &ethwarp_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 = &ethwarp_rst_desc,
+};
+
+static const struct of_device_id of_match_clk_mt7988_eth[] = {
+ { .compatible = "mediatek,mt7988-ethsys", .data = &ethdma_desc },
+ { .compatible = "mediatek,mt7988-sgmiisys0", .data = &sgmii0_desc },
+ { .compatible = "mediatek,mt7988-sgmiisys1", .data = &sgmii1_desc },
+ { .compatible = "mediatek,mt7988-ethwarp", .data = &ethwarp_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");