/* * Copyright (c) 2014 MediaTek Inc. * Author: Shunli Wang <shunli.wang@mediatek.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #include <linux/clk-provider.h> #include <linux/platform_device.h> #include "clk-mtk.h" #include "clk-gate.h" #include <dt-bindings/clock/mt2701-clk.h> static const struct mtk_gate_regs eth_cg_regs = { .sta_ofs = 0x0030, }; #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[] = { GATE_ETH(CLK_ETHSYS_HSDMA, "hsdma_clk", "ethif_sel", 5), GATE_ETH(CLK_ETHSYS_ESW, "esw_clk", "ethpll_500m_ck", 6), GATE_ETH(CLK_ETHSYS_GP2, "gp2_clk", "trgpll", 7), GATE_ETH(CLK_ETHSYS_GP1, "gp1_clk", "ethpll_500m_ck", 8), GATE_ETH(CLK_ETHSYS_PCM, "pcm_clk", "ethif_sel", 11), GATE_ETH(CLK_ETHSYS_GDMA, "gdma_clk", "ethif_sel", 14), GATE_ETH(CLK_ETHSYS_I2S, "i2s_clk", "ethif_sel", 17), GATE_ETH(CLK_ETHSYS_CRYPTO, "crypto_clk", "ethif_sel", 29), }; static const struct of_device_id of_match_clk_mt2701_eth[] = { { .compatible = "mediatek,mt2701-ethsys", }, {} }; static int clk_mt2701_eth_probe(struct platform_device *pdev) { struct clk_onecell_data *clk_data; int r; struct device_node *node = pdev->dev.of_node; clk_data = mtk_alloc_clk_data(CLK_ETHSYS_NR); 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) dev_err(&pdev->dev, "could not register clock provider: %s: %d\n", pdev->name, r); mtk_register_reset_controller(node, 1, 0x34); return r; } static struct platform_driver clk_mt2701_eth_drv = { .probe = clk_mt2701_eth_probe, .driver = { .name = "clk-mt2701-eth", .of_match_table = of_match_clk_mt2701_eth, }, }; builtin_platform_driver(clk_mt2701_eth_drv);