Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 144 insertions, 0 deletions

diff --git a/drivers/clk/mediatek/clk-mt7622-eth.c b/drivers/clk/mediatek/clk-mt7622-eth.c
new file mode 100644
index 000000000..a60190e83
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt7622-eth.c
@@ -0,0 +1,144 @@
+// 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)			\
+	GATE_MTK(_id, _name, _parent, &eth_cg_regs, _shift, &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)			\
+	GATE_MTK(_id, _name, _parent, &sgmii_cg_regs, _shift, &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 u16 rst_ofs[] = { 0x34, };
+
+static const struct mtk_clk_rst_desc clk_rst_desc = {
+	.version = MTK_RST_SIMPLE,
+	.rst_bank_ofs = rst_ofs,
+	.rst_bank_nr = ARRAY_SIZE(rst_ofs),
+};
+
+static int clk_mt7622_ethsys_init(struct platform_device *pdev)
+{
+	struct clk_hw_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_hw_provider(node, of_clk_hw_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_with_dev(&pdev->dev, &clk_rst_desc);
+
+	return r;
+}
+
+static int clk_mt7622_sgmiisys_init(struct platform_device *pdev)
+{
+	struct clk_hw_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_hw_provider(node, of_clk_hw_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);