drivers/clk/sunxi/clk_a10s.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/sun5i-ccu.h>
  13 #include <dt-bindings/reset/sun5i-ccu.h>
  14 #include <linux/bitops.h>
  15
  16 static struct ccu_clk_gate a10s_gates[] = {
  17         [CLK_AHB_OTG]           = GATE(0x060, BIT(0)),
  18         [CLK_AHB_EHCI]          = GATE(0x060, BIT(1)),
  19         [CLK_AHB_OHCI]          = GATE(0x060, BIT(2)),
  20         [CLK_AHB_MMC0]          = GATE(0x060, BIT(8)),
  21         [CLK_AHB_MMC1]          = GATE(0x060, BIT(9)),
  22         [CLK_AHB_MMC2]          = GATE(0x060, BIT(10)),
  23         [CLK_AHB_EMAC]          = GATE(0x060, BIT(17)),
  24         [CLK_AHB_SPI0]          = GATE(0x060, BIT(20)),
  25         [CLK_AHB_SPI1]          = GATE(0x060, BIT(21)),
  26         [CLK_AHB_SPI2]          = GATE(0x060, BIT(22)),
  27
  28         [CLK_APB1_UART0]        = GATE(0x06c, BIT(16)),
  29         [CLK_APB1_UART1]        = GATE(0x06c, BIT(17)),
  30         [CLK_APB1_UART2]        = GATE(0x06c, BIT(18)),
  31         [CLK_APB1_UART3]        = GATE(0x06c, BIT(19)),
  32
  33         [CLK_SPI0]              = GATE(0x0a0, BIT(31)),
  34         [CLK_SPI1]              = GATE(0x0a4, BIT(31)),
  35         [CLK_SPI2]              = GATE(0x0a8, BIT(31)),
  36
  37         [CLK_USB_OHCI]          = GATE(0x0cc, BIT(6)),
  38         [CLK_USB_PHY0]          = GATE(0x0cc, BIT(8)),
  39         [CLK_USB_PHY1]          = GATE(0x0cc, BIT(9)),
  40 };
  41
  42 static struct ccu_reset a10s_resets[] = {
  43         [RST_USB_PHY0]          = RESET(0x0cc, BIT(0)),
  44         [RST_USB_PHY1]          = RESET(0x0cc, BIT(1)),
  45 };
  46
  47 static const struct ccu_desc a10s_ccu_desc = {
  48         .gates = a10s_gates,
  49         .resets = a10s_resets,
  50 };
  51
  52 static int a10s_clk_bind(struct udevice *dev)
  53 {
  54         return sunxi_reset_bind(dev, ARRAY_SIZE(a10s_resets));
  55 }
  56
  57 static const struct udevice_id a10s_ccu_ids[] = {
  58         { .compatible = "allwinner,sun5i-a10s-ccu",
  59           .data = (ulong)&a10s_ccu_desc },
  60         { .compatible = "allwinner,sun5i-a13-ccu",
  61           .data = (ulong)&a10s_ccu_desc },
  62         { }
  63 };
  64
  65 U_BOOT_DRIVER(clk_sun5i_a10s) = {
  66         .name           = "sun5i_a10s_ccu",
  67         .id             = UCLASS_CLK,
  68         .of_match       = a10s_ccu_ids,
  69         .priv_auto      = sizeof(struct ccu_priv),
  70         .ops            = &sunxi_clk_ops,
  71         .probe          = sunxi_clk_probe,
  72         .bind           = a10s_clk_bind,
  73 };