1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * (C) Copyright 2013 4 * Sergey Kostanbaev < sergey.kostanbaev <at> fairwaves.ru > 5 */ 6 7 #include <config.h> 8 #include <common.h> 9 10 #if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) 11 #include <asm/io.h> 12 #include <asm/arch/ep93xx.h> 13 14 int usb_cpu_init(void) 15 { 16 struct syscon_regs *syscon = (struct syscon_regs *)SYSCON_BASE; 17 unsigned long pwr = readl(&syscon->pwrcnt); 18 writel(pwr | SYSCON_PWRCNT_USH_EN, &syscon->pwrcnt); 19 20 return 0; 21 } 22 23 int usb_cpu_stop(void) 24 { 25 struct syscon_regs *syscon = (struct syscon_regs *)SYSCON_BASE; 26 unsigned long pwr = readl(&syscon->pwrcnt); 27 writel(pwr & ~SYSCON_PWRCNT_USH_EN, &syscon->pwrcnt); 28 29 return 0; 30 } 31 32 int usb_cpu_init_fail(void) 33 { 34 return usb_cpu_stop(); 35 } 36 37 #endif /* defined(CONFIG_USB_OHCI) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) */ 38
