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Diffstat (limited to 'drivers/clk/mediatek/clk-mt2712-apmixedsys.c')
-rw-r--r--drivers/clk/mediatek/clk-mt2712-apmixedsys.c166
1 files changed, 166 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt2712-apmixedsys.c b/drivers/clk/mediatek/clk-mt2712-apmixedsys.c
new file mode 100644
index 0000000000..43272dc744
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt2712-apmixedsys.c
@@ -0,0 +1,166 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2017 MediaTek Inc.
+ * Weiyi Lu <weiyi.lu@mediatek.com>
+ * Copyright (c) 2023 Collabora Ltd.
+ * AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
+ */
+#include <linux/clk.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+
+#include "clk-pll.h"
+#include "clk-mtk.h"
+
+#include <dt-bindings/clock/mt2712-clk.h>
+
+#define MT2712_PLL_FMAX (3000UL * MHZ)
+
+#define CON0_MT2712_RST_BAR BIT(24)
+
+#define PLL_B(_id, _name, _reg, _pwr_reg, _en_mask, _flags, _pcwbits, \
+ _pd_reg, _pd_shift, _tuner_reg, _tuner_en_reg, \
+ _tuner_en_bit, _pcw_reg, _pcw_shift, \
+ _div_table) { \
+ .id = _id, \
+ .name = _name, \
+ .reg = _reg, \
+ .pwr_reg = _pwr_reg, \
+ .en_mask = _en_mask, \
+ .flags = _flags, \
+ .rst_bar_mask = CON0_MT2712_RST_BAR, \
+ .fmax = MT2712_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, \
+ .div_table = _div_table, \
+ }
+
+#define PLL(_id, _name, _reg, _pwr_reg, _en_mask, _flags, _pcwbits, \
+ _pd_reg, _pd_shift, _tuner_reg, _tuner_en_reg, \
+ _tuner_en_bit, _pcw_reg, _pcw_shift) \
+ PLL_B(_id, _name, _reg, _pwr_reg, _en_mask, _flags, \
+ _pcwbits, _pd_reg, _pd_shift, _tuner_reg, \
+ _tuner_en_reg, _tuner_en_bit, _pcw_reg, \
+ _pcw_shift, NULL)
+
+static const struct mtk_pll_div_table armca35pll_div_table[] = {
+ { .div = 0, .freq = MT2712_PLL_FMAX },
+ { .div = 1, .freq = 1202500000 },
+ { .div = 2, .freq = 500500000 },
+ { .div = 3, .freq = 315250000 },
+ { .div = 4, .freq = 157625000 },
+ { /* sentinel */ }
+};
+
+static const struct mtk_pll_div_table armca72pll_div_table[] = {
+ { .div = 0, .freq = MT2712_PLL_FMAX },
+ { .div = 1, .freq = 994500000 },
+ { .div = 2, .freq = 520000000 },
+ { .div = 3, .freq = 315250000 },
+ { .div = 4, .freq = 157625000 },
+ { /* sentinel */ }
+};
+
+static const struct mtk_pll_div_table mmpll_div_table[] = {
+ { .div = 0, .freq = MT2712_PLL_FMAX },
+ { .div = 1, .freq = 1001000000 },
+ { .div = 2, .freq = 601250000 },
+ { .div = 3, .freq = 250250000 },
+ { .div = 4, .freq = 125125000 },
+ { /* sentinel */ }
+};
+
+static const struct mtk_pll_data plls[] = {
+ PLL(CLK_APMIXED_MAINPLL, "mainpll", 0x0230, 0x023C, 0xf0000100,
+ HAVE_RST_BAR, 31, 0x0230, 4, 0, 0, 0, 0x0234, 0),
+ PLL(CLK_APMIXED_UNIVPLL, "univpll", 0x0240, 0x024C, 0xfe000100,
+ HAVE_RST_BAR, 31, 0x0240, 4, 0, 0, 0, 0x0244, 0),
+ PLL(CLK_APMIXED_VCODECPLL, "vcodecpll", 0x0320, 0x032C, 0xc0000100,
+ 0, 31, 0x0320, 4, 0, 0, 0, 0x0324, 0),
+ PLL(CLK_APMIXED_VENCPLL, "vencpll", 0x0280, 0x028C, 0x00000100,
+ 0, 31, 0x0280, 4, 0, 0, 0, 0x0284, 0),
+ PLL(CLK_APMIXED_APLL1, "apll1", 0x0330, 0x0340, 0x00000100,
+ 0, 31, 0x0330, 4, 0x0338, 0x0014, 0, 0x0334, 0),
+ PLL(CLK_APMIXED_APLL2, "apll2", 0x0350, 0x0360, 0x00000100,
+ 0, 31, 0x0350, 4, 0x0358, 0x0014, 1, 0x0354, 0),
+ PLL(CLK_APMIXED_LVDSPLL, "lvdspll", 0x0370, 0x037c, 0x00000100,
+ 0, 31, 0x0370, 4, 0, 0, 0, 0x0374, 0),
+ PLL(CLK_APMIXED_LVDSPLL2, "lvdspll2", 0x0390, 0x039C, 0x00000100,
+ 0, 31, 0x0390, 4, 0, 0, 0, 0x0394, 0),
+ PLL(CLK_APMIXED_MSDCPLL, "msdcpll", 0x0270, 0x027C, 0x00000100,
+ 0, 31, 0x0270, 4, 0, 0, 0, 0x0274, 0),
+ PLL(CLK_APMIXED_MSDCPLL2, "msdcpll2", 0x0410, 0x041C, 0x00000100,
+ 0, 31, 0x0410, 4, 0, 0, 0, 0x0414, 0),
+ PLL(CLK_APMIXED_TVDPLL, "tvdpll", 0x0290, 0x029C, 0xc0000100,
+ 0, 31, 0x0290, 4, 0, 0, 0, 0x0294, 0),
+ PLL_B(CLK_APMIXED_MMPLL, "mmpll", 0x0250, 0x0260, 0x00000100,
+ 0, 31, 0x0250, 4, 0, 0, 0, 0x0254, 0, mmpll_div_table),
+ PLL_B(CLK_APMIXED_ARMCA35PLL, "armca35pll", 0x0100, 0x0110, 0xf0000100,
+ HAVE_RST_BAR, 31, 0x0100, 4, 0, 0, 0, 0x0104, 0, armca35pll_div_table),
+ PLL_B(CLK_APMIXED_ARMCA72PLL, "armca72pll", 0x0210, 0x0220, 0x00000100,
+ 0, 31, 0x0210, 4, 0, 0, 0, 0x0214, 0, armca72pll_div_table),
+ PLL(CLK_APMIXED_ETHERPLL, "etherpll", 0x0300, 0x030C, 0xc0000100,
+ 0, 31, 0x0300, 4, 0, 0, 0, 0x0304, 0),
+};
+
+static int clk_mt2712_apmixed_probe(struct platform_device *pdev)
+{
+ struct clk_hw_onecell_data *clk_data;
+ int r;
+ struct device_node *node = pdev->dev.of_node;
+
+ clk_data = mtk_alloc_clk_data(CLK_APMIXED_NR_CLK);
+ if (!clk_data)
+ return -ENOMEM;
+
+ r = mtk_clk_register_plls(node, plls, ARRAY_SIZE(plls), clk_data);
+ if (r)
+ goto free_clk_data;
+
+ r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
+ if (r) {
+ dev_err(&pdev->dev, "Cannot register clock provider: %d\n", r);
+ goto unregister_plls;
+ }
+
+ return 0;
+
+unregister_plls:
+ mtk_clk_unregister_plls(plls, ARRAY_SIZE(plls), clk_data);
+free_clk_data:
+ mtk_free_clk_data(clk_data);
+ return r;
+}
+
+static void clk_mt2712_apmixed_remove(struct platform_device *pdev)
+{
+ struct device_node *node = pdev->dev.of_node;
+ struct clk_hw_onecell_data *clk_data = platform_get_drvdata(pdev);
+
+ of_clk_del_provider(node);
+ mtk_clk_unregister_plls(plls, ARRAY_SIZE(plls), clk_data);
+ mtk_free_clk_data(clk_data);
+}
+
+static const struct of_device_id of_match_clk_mt2712_apmixed[] = {
+ { .compatible = "mediatek,mt2712-apmixedsys" },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, of_match_clk_mt2712_apmixed);
+
+static struct platform_driver clk_mt2712_apmixed_drv = {
+ .probe = clk_mt2712_apmixed_probe,
+ .remove_new = clk_mt2712_apmixed_remove,
+ .driver = {
+ .name = "clk-mt2712-apmixed",
+ .of_match_table = of_match_clk_mt2712_apmixed,
+ },
+};
+module_platform_driver(clk_mt2712_apmixed_drv)
+MODULE_LICENSE("GPL");