clk: mediatek: add drivers for MT7988 SoC

Add APMIXED, ETH, INFRACFG and TOPCKGEN clock drivers which are
typical MediaTek designs.

Also add driver for XFIPLL clock generating the 156.25MHz clock for
the XFI SerDes. It needs an undocumented software workaround and has
an unknown internal design.

Signed-off-by: Sam Shih <sam.shih@mediatek.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/c7574d808e2da1a530182f0fd790c1337c336e1b.1702849494.git.daniel@makrotopia.org
[sboyd@kernel.org: Add module license to infracfg file]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

1 files changed, 114 insertions, 0 deletions

diff --git a/drivers/clk/mediatek/clk-mt7988-apmixed.c b/drivers/clk/mediatek/clk-mt7988-apmixed.c
new file mode 100644
index 000000000000..baf9564351a3
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt7988-apmixed.c
@@ -0,0 +1,114 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2023 MediaTek Inc.
+ * Author: Sam Shih <sam.shih@mediatek.com>
+ * Author: Xiufeng Li <Xiufeng.Li@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 "clk-mux.h"
+#include "clk-pll.h"
+#include <dt-bindings/clock/mediatek,mt7988-clk.h>
+
+#define MT7988_PLL_FMAX (2500UL * MHZ)
+#define MT7988_PCW_CHG_BIT 2
+
+#define PLL(_id, _name, _reg, _pwr_reg, _en_mask, _flags, _rst_bar_mask, _pcwbits, _pd_reg,	\
+	    _pd_shift, _tuner_reg, _tuner_en_reg, _tuner_en_bit, _pcw_reg, _pcw_shift,		\
+	    _pcw_chg_reg)									\
+	{											\
+		.id = _id,									\
+		.name = _name,									\
+		.reg = _reg,									\
+		.pwr_reg = _pwr_reg,								\
+		.en_mask = _en_mask,								\
+		.flags = _flags,								\
+		.rst_bar_mask = BIT(_rst_bar_mask),						\
+		.fmax = MT7988_PLL_FMAX,							\
+		.pcwbits = _pcwbits,								\
+		.pd_reg = _pd_reg,								\
+		.pd_shift = _pd_shift,								\
+		.tuner_reg = _tuner_reg,							\
+		.tuner_en_reg = _tuner_en_reg,							\
+		.tuner_en_bit = _tuner_en_bit,							\
+		.pcw_reg = _pcw_reg,								\
+		.pcw_shift = _pcw_shift,							\
+		.pcw_chg_reg = _pcw_chg_reg,							\
+		.pcw_chg_bit = MT7988_PCW_CHG_BIT,						\
+		.parent_name = "clkxtal",							\
+	}
+
+static const struct mtk_pll_data plls[] = {
+	PLL(CLK_APMIXED_NETSYSPLL, "netsyspll", 0x0104, 0x0110, 0x00000001, 0, 0, 32, 0x0104, 4, 0,
+	    0, 0, 0x0108, 0, 0x0104),
+	PLL(CLK_APMIXED_MPLL, "mpll", 0x0114, 0x0120, 0xff000001, HAVE_RST_BAR, 23, 32, 0x0114, 4,
+	    0, 0, 0, 0x0118, 0, 0x0114),
+	PLL(CLK_APMIXED_MMPLL, "mmpll", 0x0124, 0x0130, 0xff000001, HAVE_RST_BAR, 23, 32, 0x0124, 4,
+	    0, 0, 0, 0x0128, 0, 0x0124),
+	PLL(CLK_APMIXED_APLL2, "apll2", 0x0134, 0x0140, 0x00000001, 0, 0, 32, 0x0134, 4, 0x0704,
+	    0x0700, 1, 0x0138, 0, 0x0134),
+	PLL(CLK_APMIXED_NET1PLL, "net1pll", 0x0144, 0x0150, 0xff000001, HAVE_RST_BAR, 23, 32,
+	    0x0144, 4, 0, 0, 0, 0x0148, 0, 0x0144),
+	PLL(CLK_APMIXED_NET2PLL, "net2pll", 0x0154, 0x0160, 0xff000001, (HAVE_RST_BAR | PLL_AO), 23,
+	    32, 0x0154, 4, 0, 0, 0, 0x0158, 0, 0x0154),
+	PLL(CLK_APMIXED_WEDMCUPLL, "wedmcupll", 0x0164, 0x0170, 0x00000001, 0, 0, 32, 0x0164, 4, 0,
+	    0, 0, 0x0168, 0, 0x0164),
+	PLL(CLK_APMIXED_SGMPLL, "sgmpll", 0x0174, 0x0180, 0x00000001, 0, 0, 32, 0x0174, 4, 0, 0, 0,
+	    0x0178, 0, 0x0174),
+	PLL(CLK_APMIXED_ARM_B, "arm_b", 0x0204, 0x0210, 0xff000001, (HAVE_RST_BAR | PLL_AO), 23, 32,
+	    0x0204, 4, 0, 0, 0, 0x0208, 0, 0x0204),
+	PLL(CLK_APMIXED_CCIPLL2_B, "ccipll2_b", 0x0214, 0x0220, 0xff000001, HAVE_RST_BAR, 23, 32,
+	    0x0214, 4, 0, 0, 0, 0x0218, 0, 0x0214),
+	PLL(CLK_APMIXED_USXGMIIPLL, "usxgmiipll", 0x0304, 0x0310, 0xff000001, HAVE_RST_BAR, 23, 32,
+	    0x0304, 4, 0, 0, 0, 0x0308, 0, 0x0304),
+	PLL(CLK_APMIXED_MSDCPLL, "msdcpll", 0x0314, 0x0320, 0x00000001, 0, 0, 32, 0x0314, 4, 0, 0,
+	    0, 0x0318, 0, 0x0314),
+};
+
+static const struct of_device_id of_match_clk_mt7988_apmixed[] = {
+	{ .compatible = "mediatek,mt7988-apmixedsys" },
+	{ /* sentinel */ }
+};
+
+static int clk_mt7988_apmixed_probe(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(ARRAY_SIZE(plls));
+	if (!clk_data)
+		return -ENOMEM;
+
+	r = mtk_clk_register_plls(node, plls, ARRAY_SIZE(plls), clk_data);
+	if (r)
+		goto free_apmixed_data;
+
+	r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
+	if (r)
+		goto unregister_plls;
+
+	return r;
+
+unregister_plls:
+	mtk_clk_unregister_plls(plls, ARRAY_SIZE(plls), clk_data);
+free_apmixed_data:
+	mtk_free_clk_data(clk_data);
+	return r;
+}
+
+static struct platform_driver clk_mt7988_apmixed_drv = {
+	.probe = clk_mt7988_apmixed_probe,
+	.driver = {
+		.name = "clk-mt7988-apmixed",
+		.of_match_table = of_match_clk_mt7988_apmixed,
+	},
+};
+builtin_platform_driver(clk_mt7988_apmixed_drv);
+MODULE_LICENSE("GPL");