1 /*
2  * Copyright (C) 2016 Socionext Inc.
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 #include <common.h>
8 #include <spl.h>
9 #include <linux/bitops.h>
10 #include <linux/io.h>
11 
12 #include "../init.h"
13 #include "../sc64-regs.h"
14 #include "../sg-regs.h"
15 
16 #define SDCTRL_EMMC_HW_RESET	0x59810280
17 
18 void uniphier_ld11_clk_init(void)
19 {
20 	/* if booted from a device other than USB, without stand-by MPU */
21 	if ((readl(SG_PINMON0) & BIT(27)) &&
22 	    uniphier_boot_device_raw() != BOOT_DEVICE_USB) {
23 		writel(1, SG_ETPHYPSHUT);
24 		writel(1, SG_ETPHYCNT);
25 
26 		udelay(1); /* wait for regulator level 1.1V -> 2.5V */
27 
28 		writel(3, SG_ETPHYCNT);
29 		writel(3, SG_ETPHYPSHUT);
30 		writel(7, SG_ETPHYCNT);
31 	}
32 
33 	/* TODO: use "mmc-pwrseq-emmc" */
34 	writel(1, SDCTRL_EMMC_HW_RESET);
35 
36 #ifdef CONFIG_USB_EHCI_HCD
37 	{
38 		/* FIXME: the current clk driver can not handle parents */
39 		u32 tmp;
40 		int ch;
41 
42 		tmp = readl(SC_CLKCTRL4);
43 		tmp |= SC_CLKCTRL4_MIO | SC_CLKCTRL4_STDMAC;
44 		writel(tmp, SC_CLKCTRL4);
45 
46 		for (ch = 0; ch < 3; ch++) {
47 			void __iomem *phyctrl = (void __iomem *)SG_USBPHYCTRL;
48 
49 			writel(0x82280600, phyctrl + 8 * ch);
50 			writel(0x00000106, phyctrl + 8 * ch + 4);
51 		}
52 	}
53 #endif
54 }
55