/* * (C) Copyright 2006 * DENX Software Engineering <mk@denx.de> * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #include <common.h> #if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) #ifndef CONFIG_AT91_LEGACY #define CONFIG_AT91_LEGACY #warning Please update to use C structur SoC access ! #endif #include <asm/arch/hardware.h> #include <asm/arch/io.h> #include <asm/arch/at91_pmc.h> #include <asm/arch/clk.h> int usb_cpu_init(void) { #if defined(CONFIG_AT91CAP9) || defined(CONFIG_AT91SAM9260) || \ defined(CONFIG_AT91SAM9263) || defined(CONFIG_AT91SAM9G20) || \ defined(CONFIG_AT91SAM9261) /* Enable PLLB */ at91_sys_write(AT91_CKGR_PLLBR, get_pllb_init()); while ((at91_sys_read(AT91_PMC_SR) & AT91_PMC_LOCKB) != AT91_PMC_LOCKB) ; #endif /* Enable USB host clock. */ at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_UHP); #ifdef CONFIG_AT91SAM9261 at91_sys_write(AT91_PMC_SCER, AT91_PMC_UHP | AT91_PMC_HCK0); #else at91_sys_write(AT91_PMC_SCER, AT91_PMC_UHP); #endif return 0; } int usb_cpu_stop(void) { /* Disable USB host clock. */ at91_sys_write(AT91_PMC_PCDR, 1 << AT91_ID_UHP); #ifdef CONFIG_AT91SAM9261 at91_sys_write(AT91_PMC_SCDR, AT91_PMC_UHP | AT91_PMC_HCK0); #else at91_sys_write(AT91_PMC_SCDR, AT91_PMC_UHP); #endif #if defined(CONFIG_AT91CAP9) || defined(CONFIG_AT91SAM9260) || \ defined(CONFIG_AT91SAM9263) || defined(CONFIG_AT91SAM9G20) /* Disable PLLB */ at91_sys_write(AT91_CKGR_PLLBR, 0); while ((at91_sys_read(AT91_PMC_SR) & AT91_PMC_LOCKB) != 0) ; #endif return 0; } int usb_cpu_init_fail(void) { return usb_cpu_stop(); } #endif /* defined(CONFIG_USB_OHCI) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) */