drivers/clk/sunxi/clk_v3s.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-v3s-ccu.h>
  13 #include <dt-bindings/reset/sun8i-v3s-ccu.h>
  14
  15 static struct ccu_clk_gate v3s_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_OTG]           = GATE(0x060, BIT(24)),
  21
  22         [CLK_BUS_UART0]         = GATE(0x06c, BIT(16)),
  23         [CLK_BUS_UART1]         = GATE(0x06c, BIT(17)),
  24         [CLK_BUS_UART2]         = GATE(0x06c, BIT(18)),
  25
  26         [CLK_SPI0]              = GATE(0x0a0, BIT(31)),
  27
  28         [CLK_USB_PHY0]          = GATE(0x0cc, BIT(8)),
  29 };
  30
  31 static struct ccu_reset v3s_resets[] = {
  32         [RST_USB_PHY0]          = RESET(0x0cc, BIT(0)),
  33
  34         [RST_BUS_MMC0]          = RESET(0x2c0, BIT(8)),
  35         [RST_BUS_MMC1]          = RESET(0x2c0, BIT(9)),
  36         [RST_BUS_MMC2]          = RESET(0x2c0, BIT(10)),
  37         [RST_BUS_SPI0]          = RESET(0x2c0, BIT(20)),
  38         [RST_BUS_OTG]           = RESET(0x2c0, BIT(24)),
  39
  40         [RST_BUS_UART0]         = RESET(0x2d8, BIT(16)),
  41         [RST_BUS_UART1]         = RESET(0x2d8, BIT(17)),
  42         [RST_BUS_UART2]         = RESET(0x2d8, BIT(18)),
  43 };
  44
  45 static const struct ccu_desc v3s_ccu_desc = {
  46         .gates = v3s_gates,
  47         .resets = v3s_resets,
  48 };
  49
  50 static int v3s_clk_bind(struct udevice *dev)
  51 {
  52         return sunxi_reset_bind(dev, ARRAY_SIZE(v3s_resets));
  53 }
  54
  55 static const struct udevice_id v3s_clk_ids[] = {
  56         { .compatible = "allwinner,sun8i-v3s-ccu",
  57           .data = (ulong)&v3s_ccu_desc },
  58         { }
  59 };
  60
  61 U_BOOT_DRIVER(clk_sun8i_v3s) = {
  62         .name           = "sun8i_v3s_ccu",
  63         .id             = UCLASS_CLK,
  64         .of_match       = v3s_clk_ids,
  65         .priv_auto_alloc_size   = sizeof(struct ccu_priv),
  66         .ops            = &sunxi_clk_ops,
  67         .probe          = sunxi_clk_probe,
  68         .bind           = v3s_clk_bind,
  69 };