1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * (C) Copyright 2006 4 * Markus Klotzbuecher, DENX Software Engineering <mk@denx.de> 5 */ 6 7 #include <common.h> 8 9 #if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) 10 # if defined(CONFIG_CPU_MONAHANS) || defined(CONFIG_CPU_PXA27X) 11 12 #include <asm/arch/pxa-regs.h> 13 #include <asm/io.h> 14 #include <usb.h> 15 16 int usb_cpu_init(void) 17 { 18 #if defined(CONFIG_CPU_MONAHANS) 19 /* Enable USB host clock. */ 20 writel(readl(CKENA) | CKENA_2_USBHOST | CKENA_20_UDC, CKENA); 21 udelay(100); 22 #endif 23 #if defined(CONFIG_CPU_PXA27X) 24 /* Enable USB host clock. */ 25 writel(readl(CKEN) | CKEN10_USBHOST, CKEN); 26 #endif 27 28 #if defined(CONFIG_CPU_MONAHANS) 29 /* Configure Port 2 for Host (USB Client Registers) */ 30 writel(0x3000c, UP2OCR); 31 #endif 32 33 writel(readl(UHCHR) | UHCHR_FHR, UHCHR); 34 mdelay(11); 35 writel(readl(UHCHR) & ~UHCHR_FHR, UHCHR); 36 37 writel(readl(UHCHR) | UHCHR_FSBIR, UHCHR); 38 while (readl(UHCHR) & UHCHR_FSBIR) 39 udelay(1); 40 41 #if defined(CONFIG_CPU_MONAHANS) || defined(CONFIG_PXA27X) 42 writel(readl(UHCHR) & ~UHCHR_SSEP0, UHCHR); 43 #endif 44 #if defined(CONFIG_CPU_PXA27X) 45 writel(readl(UHCHR) & ~UHCHR_SSEP2, UHCHR); 46 #endif 47 writel(readl(UHCHR) & ~(UHCHR_SSEP1 | UHCHR_SSE), UHCHR); 48 49 return 0; 50 } 51 52 int usb_cpu_stop(void) 53 { 54 writel(readl(UHCHR) | UHCHR_FHR, UHCHR); 55 udelay(11); 56 writel(readl(UHCHR) & ~UHCHR_FHR, UHCHR); 57 58 writel(readl(UHCCOMS) | UHCCOMS_HCR, UHCCOMS); 59 udelay(10); 60 61 #if defined(CONFIG_CPU_MONAHANS) || defined(CONFIG_PXA27X) 62 writel(readl(UHCHR) | UHCHR_SSEP0, UHCHR); 63 #endif 64 #if defined(CONFIG_CPU_PXA27X) 65 writel(readl(UHCHR) | UHCHR_SSEP2, UHCHR); 66 #endif 67 writel(readl(UHCHR) | UHCHR_SSEP1 | UHCHR_SSE, UHCHR); 68 69 #if defined(CONFIG_CPU_MONAHANS) 70 /* Disable USB host clock. */ 71 writel(readl(CKENA) & ~(CKENA_2_USBHOST | CKENA_20_UDC), CKENA); 72 udelay(100); 73 #endif 74 #if defined(CONFIG_CPU_PXA27X) 75 /* Disable USB host clock. */ 76 writel(readl(CKEN) & ~CKEN10_USBHOST, CKEN); 77 #endif 78 79 return 0; 80 } 81 82 int usb_cpu_init_fail(void) 83 { 84 return usb_cpu_stop(); 85 } 86 87 # endif /* defined(CONFIG_CPU_MONAHANS) || defined(CONFIG_CPU_PXA27X) */ 88 #endif /* defined(CONFIG_USB_OHCI) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) */ 89