drivers/clk/sunxi/clk_h3.c

   1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
   2 /*
   3  * Copyright (C) 2018 Amarula Solutions.
   4  * Author: Jagan Teki <jagan@amarulasolutions.com>
   5  */
   6
   7 #include <common.h>
   8 #include <clk-uclass.h>
   9 #include <dm.h>
  10 #include <errno.h>
  11 #include <asm/arch/ccu.h>
  12 #include <dt-bindings/clock/sun8i-h3-ccu.h>
  13 #include <dt-bindings/reset/sun8i-h3-ccu.h>
  14 #include <linux/bitops.h>
  15
  16 static struct ccu_clk_gate h3_gates[] = {
  17         [CLK_BUS_MMC0]          = GATE(0x060, BIT(8)),
  18         [CLK_BUS_MMC1]          = GATE(0x060, BIT(9)),
  19         [CLK_BUS_MMC2]          = GATE(0x060, BIT(10)),
  20         [CLK_BUS_EMAC]          = GATE(0x060, BIT(17)),
  21         [CLK_BUS_SPI0]          = GATE(0x060, BIT(20)),
  22         [CLK_BUS_SPI1]          = GATE(0x060, BIT(21)),
  23         [CLK_BUS_OTG]           = GATE(0x060, BIT(23)),
  24         [CLK_BUS_EHCI0]         = GATE(0x060, BIT(24)),
  25         [CLK_BUS_EHCI1]         = GATE(0x060, BIT(25)),
  26         [CLK_BUS_EHCI2]         = GATE(0x060, BIT(26)),
  27         [CLK_BUS_EHCI3]         = GATE(0x060, BIT(27)),
  28         [CLK_BUS_OHCI0]         = GATE(0x060, BIT(28)),
  29         [CLK_BUS_OHCI1]         = GATE(0x060, BIT(29)),
  30         [CLK_BUS_OHCI2]         = GATE(0x060, BIT(30)),
  31         [CLK_BUS_OHCI3]         = GATE(0x060, BIT(31)),
  32
  33         [CLK_BUS_UART0]         = GATE(0x06c, BIT(16)),
  34         [CLK_BUS_UART1]         = GATE(0x06c, BIT(17)),
  35         [CLK_BUS_UART2]         = GATE(0x06c, BIT(18)),
  36         [CLK_BUS_UART3]         = GATE(0x06c, BIT(19)),
  37
  38         [CLK_BUS_EPHY]          = GATE(0x070, BIT(0)),
  39
  40         [CLK_SPI0]              = GATE(0x0a0, BIT(31)),
  41         [CLK_SPI1]              = GATE(0x0a4, BIT(31)),
  42
  43         [CLK_USB_PHY0]          = GATE(0x0cc, BIT(8)),
  44         [CLK_USB_PHY1]          = GATE(0x0cc, BIT(9)),
  45         [CLK_USB_PHY2]          = GATE(0x0cc, BIT(10)),
  46         [CLK_USB_PHY3]          = GATE(0x0cc, BIT(11)),
  47         [CLK_USB_OHCI0]         = GATE(0x0cc, BIT(16)),
  48         [CLK_USB_OHCI1]         = GATE(0x0cc, BIT(17)),
  49         [CLK_USB_OHCI2]         = GATE(0x0cc, BIT(18)),
  50         [CLK_USB_OHCI3]         = GATE(0x0cc, BIT(19)),
  51 };
  52
  53 static struct ccu_reset h3_resets[] = {
  54         [RST_USB_PHY0]          = RESET(0x0cc, BIT(0)),
  55         [RST_USB_PHY1]          = RESET(0x0cc, BIT(1)),
  56         [RST_USB_PHY2]          = RESET(0x0cc, BIT(2)),
  57         [RST_USB_PHY3]          = RESET(0x0cc, BIT(3)),
  58
  59         [RST_BUS_MMC0]          = RESET(0x2c0, BIT(8)),
  60         [RST_BUS_MMC1]          = RESET(0x2c0, BIT(9)),
  61         [RST_BUS_MMC2]          = RESET(0x2c0, BIT(10)),
  62         [RST_BUS_EMAC]          = RESET(0x2c0, BIT(17)),
  63         [RST_BUS_SPI0]          = RESET(0x2c0, BIT(20)),
  64         [RST_BUS_SPI1]          = RESET(0x2c0, BIT(21)),
  65         [RST_BUS_OTG]           = RESET(0x2c0, BIT(23)),
  66         [RST_BUS_EHCI0]         = RESET(0x2c0, BIT(24)),
  67         [RST_BUS_EHCI1]         = RESET(0x2c0, BIT(25)),
  68         [RST_BUS_EHCI2]         = RESET(0x2c0, BIT(26)),
  69         [RST_BUS_EHCI3]         = RESET(0x2c0, BIT(27)),
  70         [RST_BUS_OHCI0]         = RESET(0x2c0, BIT(28)),
  71         [RST_BUS_OHCI1]         = RESET(0x2c0, BIT(29)),
  72         [RST_BUS_OHCI2]         = RESET(0x2c0, BIT(30)),
  73         [RST_BUS_OHCI3]         = RESET(0x2c0, BIT(31)),
  74
  75         [RST_BUS_EPHY]          = RESET(0x2c8, BIT(2)),
  76
  77         [RST_BUS_UART0]         = RESET(0x2d8, BIT(16)),
  78         [RST_BUS_UART1]         = RESET(0x2d8, BIT(17)),
  79         [RST_BUS_UART2]         = RESET(0x2d8, BIT(18)),
  80         [RST_BUS_UART3]         = RESET(0x2d8, BIT(19)),
  81 };
  82
  83 static const struct ccu_desc h3_ccu_desc = {
  84         .gates = h3_gates,
  85         .resets = h3_resets,
  86 };
  87
  88 static int h3_clk_bind(struct udevice *dev)
  89 {
  90         return sunxi_reset_bind(dev, ARRAY_SIZE(h3_resets));
  91 }
  92
  93 static const struct udevice_id h3_ccu_ids[] = {
  94         { .compatible = "allwinner,sun8i-h3-ccu",
  95           .data = (ulong)&h3_ccu_desc },
  96         { .compatible = "allwinner,sun50i-h5-ccu",
  97           .data = (ulong)&h3_ccu_desc },
  98         { }
  99 };
 100
 101 U_BOOT_DRIVER(clk_sun8i_h3) = {
 102         .name           = "sun8i_h3_ccu",
 103         .id             = UCLASS_CLK,
 104         .of_match       = h3_ccu_ids,
 105         .priv_auto      = sizeof(struct ccu_priv),
 106         .ops            = &sunxi_clk_ops,
 107         .probe          = sunxi_clk_probe,
 108         .bind           = h3_clk_bind,
 109 };