1802d0beec
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 655 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
149 lines
3.5 KiB
C
149 lines
3.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Copyright (c) 2017 MediaTek Inc.
|
|
* Author: Chen Zhong <chen.zhong@mediatek.com>
|
|
* Sean Wang <sean.wang@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/mt7622-clk.h>
|
|
|
|
#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_regs eth_cg_regs = {
|
|
.set_ofs = 0x30,
|
|
.clr_ofs = 0x30,
|
|
.sta_ofs = 0x30,
|
|
};
|
|
|
|
static const struct mtk_gate eth_clks[] = {
|
|
GATE_ETH(CLK_ETH_HSDMA_EN, "eth_hsdma_en", "eth_sel", 5),
|
|
GATE_ETH(CLK_ETH_ESW_EN, "eth_esw_en", "eth_500m", 6),
|
|
GATE_ETH(CLK_ETH_GP2_EN, "eth_gp2_en", "txclk_src_pre", 7),
|
|
GATE_ETH(CLK_ETH_GP1_EN, "eth_gp1_en", "txclk_src_pre", 8),
|
|
GATE_ETH(CLK_ETH_GP0_EN, "eth_gp0_en", "txclk_src_pre", 9),
|
|
};
|
|
|
|
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 sgmii_clks[] = {
|
|
GATE_SGMII(CLK_SGMII_TX250M_EN, "sgmii_tx250m_en",
|
|
"ssusb_tx250m", 2),
|
|
GATE_SGMII(CLK_SGMII_RX250M_EN, "sgmii_rx250m_en",
|
|
"ssusb_eq_rx250m", 3),
|
|
GATE_SGMII(CLK_SGMII_CDR_REF, "sgmii_cdr_ref",
|
|
"ssusb_cdr_ref", 4),
|
|
GATE_SGMII(CLK_SGMII_CDR_FB, "sgmii_cdr_fb",
|
|
"ssusb_cdr_fb", 5),
|
|
};
|
|
|
|
static int clk_mt7622_ethsys_init(struct platform_device *pdev)
|
|
{
|
|
struct clk_onecell_data *clk_data;
|
|
struct device_node *node = pdev->dev.of_node;
|
|
int r;
|
|
|
|
clk_data = mtk_alloc_clk_data(CLK_ETH_NR_CLK);
|
|
|
|
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 int clk_mt7622_sgmiisys_init(struct platform_device *pdev)
|
|
{
|
|
struct clk_onecell_data *clk_data;
|
|
struct device_node *node = pdev->dev.of_node;
|
|
int r;
|
|
|
|
clk_data = mtk_alloc_clk_data(CLK_SGMII_NR_CLK);
|
|
|
|
mtk_clk_register_gates(node, sgmii_clks, ARRAY_SIZE(sgmii_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);
|
|
|
|
return r;
|
|
}
|
|
|
|
static const struct of_device_id of_match_clk_mt7622_eth[] = {
|
|
{
|
|
.compatible = "mediatek,mt7622-ethsys",
|
|
.data = clk_mt7622_ethsys_init,
|
|
}, {
|
|
.compatible = "mediatek,mt7622-sgmiisys",
|
|
.data = clk_mt7622_sgmiisys_init,
|
|
}, {
|
|
/* sentinel */
|
|
}
|
|
};
|
|
|
|
static int clk_mt7622_eth_probe(struct platform_device *pdev)
|
|
{
|
|
int (*clk_init)(struct platform_device *);
|
|
int r;
|
|
|
|
clk_init = of_device_get_match_data(&pdev->dev);
|
|
if (!clk_init)
|
|
return -EINVAL;
|
|
|
|
r = clk_init(pdev);
|
|
if (r)
|
|
dev_err(&pdev->dev,
|
|
"could not register clock provider: %s: %d\n",
|
|
pdev->name, r);
|
|
|
|
return r;
|
|
}
|
|
|
|
static struct platform_driver clk_mt7622_eth_drv = {
|
|
.probe = clk_mt7622_eth_probe,
|
|
.driver = {
|
|
.name = "clk-mt7622-eth",
|
|
.of_match_table = of_match_clk_mt7622_eth,
|
|
},
|
|
};
|
|
|
|
builtin_platform_driver(clk_mt7622_eth_drv);
|