1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374 |
- // SPDX-License-Identifier: GPL-2.0-only
- /*
- * Copyright (c) 2014 MediaTek Inc.
- * Author: Shunli Wang <shunli.wang@mediatek.com>
- */
- #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);
|