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
  15 static struct ccu_clk_gate h3_gates[] = {
  16         [CLK_BUS_MMC0]          = GATE(0x060, BIT(8)),
  17         [CLK_BUS_MMC1]          = GATE(0x060, BIT(9)),
  18         [CLK_BUS_MMC2]          = GATE(0x060, BIT(10)),
  19         [CLK_BUS_SPI0]          = GATE(0x060, BIT(20)),
  20         [CLK_BUS_SPI1]          = GATE(0x060, BIT(21)),
  21         [CLK_BUS_OTG]           = GATE(0x060, BIT(23)),
  22         [CLK_BUS_EHCI0]         = GATE(0x060, BIT(24)),
  23         [CLK_BUS_EHCI1]         = GATE(0x060, BIT(25)),
  24         [CLK_BUS_EHCI2]         = GATE(0x060, BIT(26)),
  25         [CLK_BUS_EHCI3]         = GATE(0x060, BIT(27)),
  26         [CLK_BUS_OHCI0]         = GATE(0x060, BIT(28)),
  27         [CLK_BUS_OHCI1]         = GATE(0x060, BIT(29)),
  28         [CLK_BUS_OHCI2]         = GATE(0x060, BIT(30)),
  29         [CLK_BUS_OHCI3]         = GATE(0x060, BIT(31)),
  30
  31         [CLK_BUS_UART0]         = GATE(0x06c, BIT(16)),
  32         [CLK_BUS_UART1]         = GATE(0x06c, BIT(17)),
  33         [CLK_BUS_UART2]         = GATE(0x06c, BIT(18)),
  34         [CLK_BUS_UART3]         = GATE(0x06c, BIT(19)),
  35
  36         [CLK_SPI0]              = GATE(0x0a0, BIT(31)),
  37         [CLK_SPI1]              = GATE(0x0a4, BIT(31)),
  38
  39         [CLK_USB_PHY0]          = GATE(0x0cc, BIT(8)),
  40         [CLK_USB_PHY1]          = GATE(0x0cc, BIT(9)),
  41         [CLK_USB_PHY2]          = GATE(0x0cc, BIT(10)),
  42         [CLK_USB_PHY3]          = GATE(0x0cc, BIT(11)),
  43         [CLK_USB_OHCI0]         = GATE(0x0cc, BIT(16)),
  44         [CLK_USB_OHCI1]         = GATE(0x0cc, BIT(17)),
  45         [CLK_USB_OHCI2]         = GATE(0x0cc, BIT(18)),
  46         [CLK_USB_OHCI3]         = GATE(0x0cc, BIT(19)),
  47 };
  48
  49 static struct ccu_reset h3_resets[] = {
  50         [RST_USB_PHY0]          = RESET(0x0cc, BIT(0)),
  51         [RST_USB_PHY1]          = RESET(0x0cc, BIT(1)),
  52         [RST_USB_PHY2]          = RESET(0x0cc, BIT(2)),
  53         [RST_USB_PHY3]          = RESET(0x0cc, BIT(3)),
  54
  55         [RST_BUS_MMC0]          = RESET(0x2c0, BIT(8)),
  56         [RST_BUS_MMC1]          = RESET(0x2c0, BIT(9)),
  57         [RST_BUS_MMC2]          = RESET(0x2c0, BIT(10)),
  58         [RST_BUS_SPI0]          = RESET(0x2c0, BIT(20)),
  59         [RST_BUS_SPI1]          = RESET(0x2c0, BIT(21)),
  60         [RST_BUS_OTG]           = RESET(0x2c0, BIT(23)),
  61         [RST_BUS_EHCI0]         = RESET(0x2c0, BIT(24)),
  62         [RST_BUS_EHCI1]         = RESET(0x2c0, BIT(25)),
  63         [RST_BUS_EHCI2]         = RESET(0x2c0, BIT(26)),
  64         [RST_BUS_EHCI3]         = RESET(0x2c0, BIT(27)),
  65         [RST_BUS_OHCI0]         = RESET(0x2c0, BIT(28)),
  66         [RST_BUS_OHCI1]         = RESET(0x2c0, BIT(29)),
  67         [RST_BUS_OHCI2]         = RESET(0x2c0, BIT(30)),
  68         [RST_BUS_OHCI3]         = RESET(0x2c0, BIT(31)),
  69
  70         [RST_BUS_UART0]         = RESET(0x2d8, BIT(16)),
  71         [RST_BUS_UART1]         = RESET(0x2d8, BIT(17)),
  72         [RST_BUS_UART2]         = RESET(0x2d8, BIT(18)),
  73         [RST_BUS_UART3]         = RESET(0x2d8, BIT(19)),
  74 };
  75
  76 static const struct ccu_desc h3_ccu_desc = {
  77         .gates = h3_gates,
  78         .resets = h3_resets,
  79 };
  80
  81 static int h3_clk_bind(struct udevice *dev)
  82 {
  83         return sunxi_reset_bind(dev, ARRAY_SIZE(h3_resets));
  84 }
  85
  86 static const struct udevice_id h3_ccu_ids[] = {
  87         { .compatible = "allwinner,sun8i-h3-ccu",
  88           .data = (ulong)&h3_ccu_desc },
  89         { .compatible = "allwinner,sun50i-h5-ccu",
  90           .data = (ulong)&h3_ccu_desc },
  91         { }
  92 };
  93
  94 U_BOOT_DRIVER(clk_sun8i_h3) = {
  95         .name           = "sun8i_h3_ccu",
  96         .id             = UCLASS_CLK,
  97         .of_match       = h3_ccu_ids,
  98         .priv_auto_alloc_size   = sizeof(struct ccu_priv),
  99         .ops            = &sunxi_clk_ops,
 100         .probe          = sunxi_clk_probe,
 101         .bind           = h3_clk_bind,
 102 };