drivers/clk/sunxi/clk_a10.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/sun4i-a10-ccu.h>
  13 #include <dt-bindings/reset/sun4i-a10-ccu.h>
  14
  15 static struct ccu_clk_gate a10_gates[] = {
  16         [CLK_AHB_OTG]           = GATE(0x060, BIT(0)),
  17         [CLK_AHB_EHCI0]         = GATE(0x060, BIT(1)),
  18         [CLK_AHB_OHCI0]         = GATE(0x060, BIT(2)),
  19         [CLK_AHB_EHCI1]         = GATE(0x060, BIT(3)),
  20         [CLK_AHB_OHCI1]         = GATE(0x060, BIT(4)),
  21
  22         [CLK_APB1_UART0]        = GATE(0x06c, BIT(16)),
  23         [CLK_APB1_UART1]        = GATE(0x06c, BIT(17)),
  24         [CLK_APB1_UART2]        = GATE(0x06c, BIT(18)),
  25         [CLK_APB1_UART3]        = GATE(0x06c, BIT(19)),
  26         [CLK_APB1_UART4]        = GATE(0x06c, BIT(20)),
  27         [CLK_APB1_UART5]        = GATE(0x06c, BIT(21)),
  28         [CLK_APB1_UART6]        = GATE(0x06c, BIT(22)),
  29         [CLK_APB1_UART7]        = GATE(0x06c, BIT(23)),
  30
  31         [CLK_USB_OHCI0]         = GATE(0x0cc, BIT(6)),
  32         [CLK_USB_OHCI1]         = GATE(0x0cc, BIT(7)),
  33         [CLK_USB_PHY]           = GATE(0x0cc, BIT(8)),
  34 };
  35
  36 static struct ccu_reset a10_resets[] = {
  37         [RST_USB_PHY0]          = RESET(0x0cc, BIT(0)),
  38         [RST_USB_PHY1]          = RESET(0x0cc, BIT(1)),
  39         [RST_USB_PHY2]          = RESET(0x0cc, BIT(2)),
  40 };
  41
  42 static const struct ccu_desc a10_ccu_desc = {
  43         .gates = a10_gates,
  44         .resets = a10_resets,
  45 };
  46
  47 static int a10_clk_bind(struct udevice *dev)
  48 {
  49         return sunxi_reset_bind(dev, ARRAY_SIZE(a10_resets));
  50 }
  51
  52 static const struct udevice_id a10_ccu_ids[] = {
  53         { .compatible = "allwinner,sun4i-a10-ccu",
  54           .data = (ulong)&a10_ccu_desc },
  55         { .compatible = "allwinner,sun7i-a20-ccu",
  56           .data = (ulong)&a10_ccu_desc },
  57         { }
  58 };
  59
  60 U_BOOT_DRIVER(clk_sun4i_a10) = {
  61         .name           = "sun4i_a10_ccu",
  62         .id             = UCLASS_CLK,
  63         .of_match       = a10_ccu_ids,
  64         .priv_auto_alloc_size   = sizeof(struct ccu_priv),
  65         .ops            = &sunxi_clk_ops,
  66         .probe          = sunxi_clk_probe,
  67         .bind           = a10_clk_bind,
  68 };