3 * DENX Software Engineering <mk@denx.de>
5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
26 #if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT)
27 # if defined(CONFIG_S3C2400) || defined(CONFIG_S3C2410)
29 #if defined(CONFIG_S3C2400)
31 #elif defined(CONFIG_S3C2410)
37 int usb_cpu_init(void)
39 struct s3c24x0_clock_power *clk_power = s3c24x0_get_base_clock_power();
40 struct s3c24x0_gpio *gpio = s3c24x0_get_base_gpio();
43 * Set the 48 MHz UPLL clocking. Values are taken from
44 * "PLL value selection guide", 6-23, s3c2400_UM.pdf.
46 writel((40 << 12) + (1 << 4) + 2, &clk_power->UPLLCON);
47 /* 1 = use pads related USB for USB host */
48 writel(readl(&gpio->MISCCR) | 0x8, &gpio->MISCCR);
51 * Enable USB host clock.
53 writel(readl(&clk_power->CLKCON) | (1 << 4), &clk_power->CLKCON);
58 int usb_cpu_stop(void)
60 struct s3c24x0_clock_power *clk_power = s3c24x0_get_base_clock_power();
61 /* may not want to do this */
62 writel(readl(&clk_power->CLKCON) & ~(1 << 4), &clk_power->CLKCON);
66 int usb_cpu_init_fail(void)
68 struct s3c24x0_clock_power *clk_power = s3c24x0_get_base_clock_power();
69 writel(readl(&clk_power->CLKCON) & ~(1 << 4), &clk_power->CLKCON);
73 # endif /* defined(CONFIG_S3C2400) || defined(CONFIG_S3C2410) */
74 #endif /* defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) */