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Diffstat (limited to 'drivers/clk/mediatek/clk-mt8173-apmixedsys.c')
-rw-r--r--drivers/clk/mediatek/clk-mt8173-apmixedsys.c218
1 files changed, 218 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt8173-apmixedsys.c b/drivers/clk/mediatek/clk-mt8173-apmixedsys.c
new file mode 100644
index 0000000000..1bbb21ab17
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8173-apmixedsys.c
@@ -0,0 +1,218 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2014 MediaTek Inc.
+ * Copyright (c) 2022 Collabora Ltd.
+ * Author: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
+ */
+
+#include <dt-bindings/clock/mt8173-clk.h>
+#include <linux/of_address.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include "clk-fhctl.h"
+#include "clk-mtk.h"
+#include "clk-pll.h"
+#include "clk-pllfh.h"
+
+#define REGOFF_REF2USB 0x8
+#define REGOFF_HDMI_REF 0x40
+
+#define MT8173_PLL_FMAX (3000UL * MHZ)
+
+#define CON0_MT8173_RST_BAR BIT(24)
+
+#define PLL_B(_id, _name, _reg, _pwr_reg, _en_mask, _flags, _pcwbits, \
+ _pd_reg, _pd_shift, _tuner_reg, _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_MT8173_RST_BAR, \
+ .fmax = MT8173_PLL_FMAX, \
+ .pcwbits = _pcwbits, \
+ .pd_reg = _pd_reg, \
+ .pd_shift = _pd_shift, \
+ .tuner_reg = _tuner_reg, \
+ .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, _pcw_reg, \
+ _pcw_shift) \
+ PLL_B(_id, _name, _reg, _pwr_reg, _en_mask, _flags, _pcwbits, \
+ _pd_reg, _pd_shift, _tuner_reg, _pcw_reg, _pcw_shift, \
+ NULL)
+
+static const struct mtk_pll_div_table mmpll_div_table[] = {
+ { .div = 0, .freq = MT8173_PLL_FMAX },
+ { .div = 1, .freq = 1000000000 },
+ { .div = 2, .freq = 702000000 },
+ { .div = 3, .freq = 253500000 },
+ { .div = 4, .freq = 126750000 },
+ { } /* sentinel */
+};
+
+static const struct mtk_pll_data plls[] = {
+ PLL(CLK_APMIXED_ARMCA15PLL, "armca15pll", 0x200, 0x20c, 0, PLL_AO,
+ 21, 0x204, 24, 0x0, 0x204, 0),
+ PLL(CLK_APMIXED_ARMCA7PLL, "armca7pll", 0x210, 0x21c, 0, PLL_AO,
+ 21, 0x214, 24, 0x0, 0x214, 0),
+ PLL(CLK_APMIXED_MAINPLL, "mainpll", 0x220, 0x22c, 0xf0000100, HAVE_RST_BAR, 21,
+ 0x220, 4, 0x0, 0x224, 0),
+ PLL(CLK_APMIXED_UNIVPLL, "univpll", 0x230, 0x23c, 0xfe000000, HAVE_RST_BAR, 7,
+ 0x230, 4, 0x0, 0x234, 14),
+ PLL_B(CLK_APMIXED_MMPLL, "mmpll", 0x240, 0x24c, 0, 0, 21, 0x244, 24, 0x0,
+ 0x244, 0, mmpll_div_table),
+ PLL(CLK_APMIXED_MSDCPLL, "msdcpll", 0x250, 0x25c, 0, 0, 21, 0x250, 4, 0x0, 0x254, 0),
+ PLL(CLK_APMIXED_VENCPLL, "vencpll", 0x260, 0x26c, 0, 0, 21, 0x260, 4, 0x0, 0x264, 0),
+ PLL(CLK_APMIXED_TVDPLL, "tvdpll", 0x270, 0x27c, 0, 0, 21, 0x270, 4, 0x0, 0x274, 0),
+ PLL(CLK_APMIXED_MPLL, "mpll", 0x280, 0x28c, 0, 0, 21, 0x280, 4, 0x0, 0x284, 0),
+ PLL(CLK_APMIXED_VCODECPLL, "vcodecpll", 0x290, 0x29c, 0, 0, 21, 0x290, 4, 0x0, 0x294, 0),
+ PLL(CLK_APMIXED_APLL1, "apll1", 0x2a0, 0x2b0, 0, 0, 31, 0x2a0, 4, 0x2a4, 0x2a4, 0),
+ PLL(CLK_APMIXED_APLL2, "apll2", 0x2b4, 0x2c4, 0, 0, 31, 0x2b4, 4, 0x2b8, 0x2b8, 0),
+ PLL(CLK_APMIXED_LVDSPLL, "lvdspll", 0x2d0, 0x2dc, 0, 0, 21, 0x2d0, 4, 0x0, 0x2d4, 0),
+ PLL(CLK_APMIXED_MSDCPLL2, "msdcpll2", 0x2f0, 0x2fc, 0, 0, 21, 0x2f0, 4, 0x0, 0x2f4, 0),
+};
+
+enum fh_pll_id {
+ FH_ARMCA7PLL,
+ FH_ARMCA15PLL,
+ FH_MAINPLL,
+ FH_MPLL,
+ FH_MSDCPLL,
+ FH_MMPLL,
+ FH_VENCPLL,
+ FH_TVDPLL,
+ FH_VCODECPLL,
+ FH_LVDSPLL,
+ FH_MSDC2PLL,
+ FH_NR_FH,
+};
+
+#define FH(_pllid, _fhid, _offset) { \
+ .data = { \
+ .pll_id = _pllid, \
+ .fh_id = _fhid, \
+ .fh_ver = FHCTL_PLLFH_V1, \
+ .fhx_offset = _offset, \
+ .dds_mask = GENMASK(21, 0), \
+ .slope0_value = 0x6003c97, \
+ .slope1_value = 0x6003c97, \
+ .sfstrx_en = BIT(2), \
+ .frddsx_en = BIT(1), \
+ .fhctlx_en = BIT(0), \
+ .tgl_org = BIT(31), \
+ .dvfs_tri = BIT(31), \
+ .pcwchg = BIT(31), \
+ .dt_val = 0x0, \
+ .df_val = 0x9, \
+ .updnlmt_shft = 16, \
+ .msk_frddsx_dys = GENMASK(23, 20), \
+ .msk_frddsx_dts = GENMASK(19, 16), \
+ }, \
+ }
+
+static struct mtk_pllfh_data pllfhs[] = {
+ FH(CLK_APMIXED_ARMCA7PLL, FH_ARMCA7PLL, 0x38),
+ FH(CLK_APMIXED_ARMCA15PLL, FH_ARMCA15PLL, 0x4c),
+ FH(CLK_APMIXED_MAINPLL, FH_MAINPLL, 0x60),
+ FH(CLK_APMIXED_MPLL, FH_MPLL, 0x74),
+ FH(CLK_APMIXED_MSDCPLL, FH_MSDCPLL, 0x88),
+ FH(CLK_APMIXED_MMPLL, FH_MMPLL, 0x9c),
+ FH(CLK_APMIXED_VENCPLL, FH_VENCPLL, 0xb0),
+ FH(CLK_APMIXED_TVDPLL, FH_TVDPLL, 0xc4),
+ FH(CLK_APMIXED_VCODECPLL, FH_VCODECPLL, 0xd8),
+ FH(CLK_APMIXED_LVDSPLL, FH_LVDSPLL, 0xec),
+ FH(CLK_APMIXED_MSDCPLL2, FH_MSDC2PLL, 0x100),
+};
+
+static const struct of_device_id of_match_clk_mt8173_apmixed[] = {
+ { .compatible = "mediatek,mt8173-apmixedsys" },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, of_match_clk_mt8173_apmixed);
+
+static int clk_mt8173_apmixed_probe(struct platform_device *pdev)
+{
+ const u8 *fhctl_node = "mediatek,mt8173-fhctl";
+ struct device_node *node = pdev->dev.of_node;
+ struct clk_hw_onecell_data *clk_data;
+ void __iomem *base;
+ struct clk_hw *hw;
+ int r;
+
+ base = of_iomap(node, 0);
+ if (!base)
+ return -ENOMEM;
+
+ clk_data = mtk_alloc_clk_data(CLK_APMIXED_NR_CLK);
+ if (IS_ERR_OR_NULL(clk_data)) {
+ iounmap(base);
+ return -ENOMEM;
+ }
+
+ fhctl_parse_dt(fhctl_node, pllfhs, ARRAY_SIZE(pllfhs));
+ r = mtk_clk_register_pllfhs(node, plls, ARRAY_SIZE(plls),
+ pllfhs, ARRAY_SIZE(pllfhs), clk_data);
+ if (r)
+ goto free_clk_data;
+
+ hw = mtk_clk_register_ref2usb_tx("ref2usb_tx", "clk26m", base + REGOFF_REF2USB);
+ if (IS_ERR(hw)) {
+ r = PTR_ERR(hw);
+ dev_err(&pdev->dev, "Failed to register ref2usb_tx: %d\n", r);
+ goto unregister_plls;
+ }
+ clk_data->hws[CLK_APMIXED_REF2USB_TX] = hw;
+
+ hw = devm_clk_hw_register_divider(&pdev->dev, "hdmi_ref", "tvdpll_594m", 0,
+ base + REGOFF_HDMI_REF, 16, 3,
+ CLK_DIVIDER_POWER_OF_TWO, NULL);
+ clk_data->hws[CLK_APMIXED_HDMI_REF] = hw;
+
+ r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
+ if (r)
+ goto unregister_ref2usb;
+
+ return 0;
+
+unregister_ref2usb:
+ mtk_clk_unregister_ref2usb_tx(clk_data->hws[CLK_APMIXED_REF2USB_TX]);
+unregister_plls:
+ mtk_clk_unregister_pllfhs(plls, ARRAY_SIZE(plls), pllfhs,
+ ARRAY_SIZE(pllfhs), clk_data);
+free_clk_data:
+ mtk_free_clk_data(clk_data);
+ iounmap(base);
+ return r;
+}
+
+static void clk_mt8173_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_ref2usb_tx(clk_data->hws[CLK_APMIXED_REF2USB_TX]);
+ mtk_clk_unregister_pllfhs(plls, ARRAY_SIZE(plls), pllfhs,
+ ARRAY_SIZE(pllfhs), clk_data);
+ mtk_free_clk_data(clk_data);
+}
+
+static struct platform_driver clk_mt8173_apmixed_drv = {
+ .probe = clk_mt8173_apmixed_probe,
+ .remove_new = clk_mt8173_apmixed_remove,
+ .driver = {
+ .name = "clk-mt8173-apmixed",
+ .of_match_table = of_match_clk_mt8173_apmixed,
+ },
+};
+module_platform_driver(clk_mt8173_apmixed_drv);
+
+MODULE_DESCRIPTION("MediaTek MT8173 apmixed clocks driver");
+MODULE_LICENSE("GPL");