drivers/clk/sunxi/clk_a83t.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-a83t-ccu.h>
  13 #include <dt-bindings/reset/sun8i-a83t-ccu.h>
  14
  15 static struct ccu_clk_gate a83t_gates[] = {
  16         [CLK_BUS_OTG]           = GATE(0x060, BIT(24)),
  17         [CLK_BUS_EHCI0]         = GATE(0x060, BIT(26)),
  18         [CLK_BUS_EHCI1]         = GATE(0x060, BIT(27)),
  19         [CLK_BUS_OHCI0]         = GATE(0x060, BIT(29)),
  20
  21         [CLK_USB_PHY0]          = GATE(0x0cc, BIT(8)),
  22         [CLK_USB_PHY1]          = GATE(0x0cc, BIT(9)),
  23         [CLK_USB_HSIC]          = GATE(0x0cc, BIT(10)),
  24         [CLK_USB_HSIC_12M]      = GATE(0x0cc, BIT(11)),
  25         [CLK_USB_OHCI0]         = GATE(0x0cc, BIT(16)),
  26 };
  27
  28 static struct ccu_reset a83t_resets[] = {
  29         [RST_USB_PHY0]          = RESET(0x0cc, BIT(0)),
  30         [RST_USB_PHY1]          = RESET(0x0cc, BIT(1)),
  31         [RST_USB_HSIC]          = RESET(0x0cc, BIT(2)),
  32
  33         [RST_BUS_OTG]           = RESET(0x2c0, BIT(24)),
  34         [RST_BUS_EHCI0]         = RESET(0x2c0, BIT(26)),
  35         [RST_BUS_EHCI1]         = RESET(0x2c0, BIT(27)),
  36         [RST_BUS_OHCI0]         = RESET(0x2c0, BIT(29)),
  37 };
  38
  39 static const struct ccu_desc a83t_ccu_desc = {
  40         .gates = a83t_gates,
  41         .resets = a83t_resets,
  42 };
  43
  44 static int a83t_clk_bind(struct udevice *dev)
  45 {
  46         return sunxi_reset_bind(dev, ARRAY_SIZE(a83t_resets));
  47 }
  48
  49 static const struct udevice_id a83t_clk_ids[] = {
  50         { .compatible = "allwinner,sun8i-a83t-ccu",
  51           .data = (ulong)&a83t_ccu_desc },
  52         { }
  53 };
  54
  55 U_BOOT_DRIVER(clk_sun8i_a83t) = {
  56         .name           = "sun8i_a83t_ccu",
  57         .id             = UCLASS_CLK,
  58         .of_match       = a83t_clk_ids,
  59         .priv_auto_alloc_size   = sizeof(struct ccu_priv),
  60         .ops            = &sunxi_clk_ops,
  61         .probe          = sunxi_clk_probe,
  62         .bind           = a83t_clk_bind,
  63 };