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) && \
27 defined(CONFIG_SYS_USB_OHCI_CPU_INIT) && \
28 defined(CONFIG_S3C24X0)
30 #include <asm/arch/s3c24x0_cpu.h>
33 int usb_cpu_init(void)
35 struct s3c24x0_clock_power *clk_power = s3c24x0_get_base_clock_power();
36 struct s3c24x0_gpio *gpio = s3c24x0_get_base_gpio();
39 * Set the 48 MHz UPLL clocking. Values are taken from
40 * "PLL value selection guide", 6-23, s3c2400_UM.pdf.
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);
47 * Enable USB host clock.
49 writel(readl(&clk_power->clkcon) | (1 << 4), &clk_power->clkcon);
54 int usb_cpu_stop(void)
56 struct s3c24x0_clock_power *clk_power = s3c24x0_get_base_clock_power();
57 /* may not want to do this */
58 writel(readl(&clk_power->clkcon) & ~(1 << 4), &clk_power->clkcon);
62 int usb_cpu_init_fail(void)
64 struct s3c24x0_clock_power *clk_power = s3c24x0_get_base_clock_power();
65 writel(readl(&clk_power->clkcon) & ~(1 << 4), &clk_power->clkcon);
69 #endif /* defined(CONFIG_USB_OHCI_NEW) && \
70 defined(CONFIG_SYS_USB_OHCI_CPU_INIT) && \
71 defined(CONFIG_S3C24X0) */