Markus Klotzbuecher | ddf83a2 | 2006-05-30 16:56:14 +0200 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2006 |
| 3 | * DENX Software Engineering <mk@denx.de> |
| 4 | * |
| 5 | * See file CREDITS for list of people who contributed to this |
| 6 | * project. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License as |
| 10 | * published by the Free Software Foundation; either version 2 of |
| 11 | * the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 21 | * MA 02111-1307 USA |
| 22 | */ |
| 23 | |
| 24 | #include <common.h> |
| 25 | |
kevin.morfitt@fearnside-systems.co.uk | ac67804 | 2009-11-17 18:30:34 +0900 | [diff] [blame] | 26 | #if defined(CONFIG_USB_OHCI_NEW) && \ |
| 27 | defined(CONFIG_SYS_USB_OHCI_CPU_INIT) && \ |
| 28 | defined(CONFIG_S3C24X0) |
Markus Klotzbuecher | ddf83a2 | 2006-05-30 16:56:14 +0200 | [diff] [blame] | 29 | |
kevin.morfitt@fearnside-systems.co.uk | ac67804 | 2009-11-17 18:30:34 +0900 | [diff] [blame] | 30 | #include <asm/arch/s3c24x0_cpu.h> |
kevin.morfitt@fearnside-systems.co.uk | d67cce2 | 2009-10-10 13:30:22 +0900 | [diff] [blame] | 31 | #include <asm/io.h> |
Markus Klotzbuecher | ddf83a2 | 2006-05-30 16:56:14 +0200 | [diff] [blame] | 32 | |
kevin.morfitt@fearnside-systems.co.uk | d67cce2 | 2009-10-10 13:30:22 +0900 | [diff] [blame] | 33 | int usb_cpu_init(void) |
| 34 | { |
| 35 | struct s3c24x0_clock_power *clk_power = s3c24x0_get_base_clock_power(); |
| 36 | struct s3c24x0_gpio *gpio = s3c24x0_get_base_gpio(); |
Markus Klotzbuecher | ddf83a2 | 2006-05-30 16:56:14 +0200 | [diff] [blame] | 37 | |
| 38 | /* |
| 39 | * Set the 48 MHz UPLL clocking. Values are taken from |
| 40 | * "PLL value selection guide", 6-23, s3c2400_UM.pdf. |
| 41 | */ |
kevin.morfitt@fearnside-systems.co.uk | d67cce2 | 2009-10-10 13:30:22 +0900 | [diff] [blame] | 42 | writel((40 << 12) + (1 << 4) + 2, &clk_power->UPLLCON); |
| 43 | /* 1 = use pads related USB for USB host */ |
| 44 | writel(readl(&gpio->MISCCR) | 0x8, &gpio->MISCCR); |
Markus Klotzbuecher | ddf83a2 | 2006-05-30 16:56:14 +0200 | [diff] [blame] | 45 | |
| 46 | /* |
| 47 | * Enable USB host clock. |
| 48 | */ |
kevin.morfitt@fearnside-systems.co.uk | d67cce2 | 2009-10-10 13:30:22 +0900 | [diff] [blame] | 49 | writel(readl(&clk_power->CLKCON) | (1 << 4), &clk_power->CLKCON); |
Markus Klotzbuecher | ddf83a2 | 2006-05-30 16:56:14 +0200 | [diff] [blame] | 50 | |
| 51 | return 0; |
| 52 | } |
| 53 | |
kevin.morfitt@fearnside-systems.co.uk | d67cce2 | 2009-10-10 13:30:22 +0900 | [diff] [blame] | 54 | int usb_cpu_stop(void) |
Markus Klotzbuecher | ddf83a2 | 2006-05-30 16:56:14 +0200 | [diff] [blame] | 55 | { |
kevin.morfitt@fearnside-systems.co.uk | d67cce2 | 2009-10-10 13:30:22 +0900 | [diff] [blame] | 56 | struct s3c24x0_clock_power *clk_power = s3c24x0_get_base_clock_power(); |
Markus Klotzbuecher | ddf83a2 | 2006-05-30 16:56:14 +0200 | [diff] [blame] | 57 | /* may not want to do this */ |
kevin.morfitt@fearnside-systems.co.uk | d67cce2 | 2009-10-10 13:30:22 +0900 | [diff] [blame] | 58 | writel(readl(&clk_power->CLKCON) & ~(1 << 4), &clk_power->CLKCON); |
Markus Klotzbuecher | ddf83a2 | 2006-05-30 16:56:14 +0200 | [diff] [blame] | 59 | return 0; |
| 60 | } |
| 61 | |
kevin.morfitt@fearnside-systems.co.uk | d67cce2 | 2009-10-10 13:30:22 +0900 | [diff] [blame] | 62 | int usb_cpu_init_fail(void) |
Markus Klotzbuecher | ddf83a2 | 2006-05-30 16:56:14 +0200 | [diff] [blame] | 63 | { |
kevin.morfitt@fearnside-systems.co.uk | d67cce2 | 2009-10-10 13:30:22 +0900 | [diff] [blame] | 64 | struct s3c24x0_clock_power *clk_power = s3c24x0_get_base_clock_power(); |
| 65 | writel(readl(&clk_power->CLKCON) & ~(1 << 4), &clk_power->CLKCON); |
Markus Klotzbuecher | ddf83a2 | 2006-05-30 16:56:14 +0200 | [diff] [blame] | 66 | return 0; |
| 67 | } |
| 68 | |
kevin.morfitt@fearnside-systems.co.uk | ac67804 | 2009-11-17 18:30:34 +0900 | [diff] [blame] | 69 | #endif /* defined(CONFIG_USB_OHCI_NEW) && \ |
| 70 | defined(CONFIG_SYS_USB_OHCI_CPU_INIT) && \ |
| 71 | defined(CONFIG_S3C24X0) */ |