drivers/clk/mediatek/clk-mt2701-eth.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (c) 2014 MediaTek Inc.
   4  * Author: Shunli Wang <shunli.wang@mediatek.com>
   5  */
   6
   7 #include <linux/clk-provider.h>
   8 #include <linux/platform_device.h>
   9
  10 #include "clk-mtk.h"
  11 #include "clk-gate.h"
  12
  13 #include <dt-bindings/clock/mt2701-clk.h>
  14
  15 static const struct mtk_gate_regs eth_cg_regs = {
  16         .sta_ofs = 0x0030,
  17 };
  18
  19 #define GATE_ETH(_id, _name, _parent, _shift)                   \
  20         GATE_MTK(_id, _name, _parent, &eth_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv)
  21
  22 static const struct mtk_gate eth_clks[] = {
  23         GATE_DUMMY(CLK_DUMMY, "eth_dummy"),
  24         GATE_ETH(CLK_ETHSYS_HSDMA, "hsdma_clk", "ethif_sel", 5),
  25         GATE_ETH(CLK_ETHSYS_ESW, "esw_clk", "ethpll_500m_ck", 6),
  26         GATE_ETH(CLK_ETHSYS_GP2, "gp2_clk", "trgpll", 7),
  27         GATE_ETH(CLK_ETHSYS_GP1, "gp1_clk", "ethpll_500m_ck", 8),
  28         GATE_ETH(CLK_ETHSYS_PCM, "pcm_clk", "ethif_sel", 11),
  29         GATE_ETH(CLK_ETHSYS_GDMA, "gdma_clk", "ethif_sel", 14),
  30         GATE_ETH(CLK_ETHSYS_I2S, "i2s_clk", "ethif_sel", 17),
  31         GATE_ETH(CLK_ETHSYS_CRYPTO, "crypto_clk", "ethif_sel", 29),
  32 };
  33
  34 static u16 rst_ofs[] = { 0x34, };
  35
  36 static const struct mtk_clk_rst_desc clk_rst_desc = {
  37         .version = MTK_RST_SIMPLE,
  38         .rst_bank_ofs = rst_ofs,
  39         .rst_bank_nr = ARRAY_SIZE(rst_ofs),
  40 };
  41
  42 static const struct mtk_clk_desc eth_desc = {
  43         .clks = eth_clks,
  44         .num_clks = ARRAY_SIZE(eth_clks),
  45         .rst_desc = &clk_rst_desc,
  46 };
  47
  48 static const struct of_device_id of_match_clk_mt2701_eth[] = {
  49         { .compatible = "mediatek,mt2701-ethsys", .data = &eth_desc },
  50         { /* sentinel */ }
  51 };
  52 MODULE_DEVICE_TABLE(of, of_match_clk_mt2701_eth);
  53
  54 static struct platform_driver clk_mt2701_eth_drv = {
  55         .probe = mtk_clk_simple_probe,
  56         .remove_new = mtk_clk_simple_remove,
  57         .driver = {
  58                 .name = "clk-mt2701-eth",
  59                 .of_match_table = of_match_clk_mt2701_eth,
  60         },
  61 };
  62 module_platform_driver(clk_mt2701_eth_drv);
  63 MODULE_LICENSE("GPL");