LXR uboot/arch/arm/mach-uniphier/clk/clk-ld11.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright (C) 2016 Socionext Inc.
   4 */
   5
   6#include <common.h>
   7#include <spl.h>
   8#include <linux/bitops.h>
   9#include <linux/io.h>
  10
  11#include "../init.h"
  12#include "../sc64-regs.h"
  13#include "../sg-regs.h"
  14
  15#define SDCTRL_EMMC_HW_RESET    0x59810280
  16
  17void uniphier_ld11_clk_init(void)
  18{
  19        /* if booted from a device other than USB, without stand-by MPU */
  20        if ((readl(sg_base + SG_PINMON0) & BIT(27)) &&
  21            uniphier_boot_device_raw() != BOOT_DEVICE_USB) {
  22                writel(1, sg_base + SG_ETPHYPSHUT);
  23                writel(1, sg_base + SG_ETPHYCNT);
  24
  25                udelay(1); /* wait for regulator level 1.1V -> 2.5V */
  26
  27                writel(3, sg_base + SG_ETPHYCNT);
  28                writel(3, sg_base + SG_ETPHYPSHUT);
  29                writel(7, sg_base + SG_ETPHYCNT);
  30        }
  31
  32        /* TODO: use "mmc-pwrseq-emmc" */
  33        writel(1, SDCTRL_EMMC_HW_RESET);
  34
  35#ifdef CONFIG_USB_EHCI_HCD
  36        {
  37                int ch;
  38
  39                for (ch = 0; ch < 3; ch++) {
  40                        void __iomem *phyctrl = sg_base + SG_USBPHYCTRL;
  41
  42                        writel(0x82280600, phyctrl + 8 * ch);
  43                        writel(0x00000106, phyctrl + 8 * ch + 4);
  44                }
  45        }
  46#endif
  47}
  48