95 lines
2.9 KiB
C
95 lines
2.9 KiB
C
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/*
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* Copyright 2000-2003, 2008 MontaVista Software Inc.
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* Author: MontaVista Software, Inc. <source@mvista.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/gpio.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <asm/mach-au1x00/au1000.h>
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#include <prom.h>
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void board_reset(void)
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{
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/* Hit BCSR.SYSTEM_CONTROL[SW_RST] */
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au_writel(0x00000000, 0xAE00001C);
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}
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void __init board_setup(void)
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{
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u32 pin_func;
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#ifdef CONFIG_SERIAL_8250_CONSOLE
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char *argptr;
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argptr = prom_getcmdline();
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argptr = strstr(argptr, "console=");
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if (argptr == NULL) {
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argptr = prom_getcmdline();
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strcat(argptr, " console=ttyS0,115200");
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}
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#endif
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alchemy_gpio1_input_enable();
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alchemy_gpio2_enable();
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/* Set multiple use pins (UART3/GPIO) to UART (it's used as UART too) */
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pin_func = au_readl(SYS_PINFUNC) & ~SYS_PF_UR3;
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pin_func |= SYS_PF_UR3;
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au_writel(pin_func, SYS_PINFUNC);
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/* Enable UART */
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au_writel(0x01, UART3_ADDR + UART_MOD_CNTRL); /* clock enable (CE) */
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mdelay(10);
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au_writel(0x03, UART3_ADDR + UART_MOD_CNTRL); /* CE and "enable" */
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mdelay(10);
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/* Enable DTR = USB power up */
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au_writel(0x01, UART3_ADDR + UART_MCR); /* UART_MCR_DTR is 0x01??? */
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#ifdef CONFIG_PCMCIA_XXS1500
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/* GPIO 0, 1, and 4 are inputs */
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alchemy_gpio_direction_input(0);
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alchemy_gpio_direction_input(1);
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alchemy_gpio_direction_input(4);
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/* GPIO2 208/9/10/11 are inputs */
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alchemy_gpio_direction_input(208);
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alchemy_gpio_direction_input(209);
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alchemy_gpio_direction_input(210);
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alchemy_gpio_direction_input(211);
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/* Turn off power */
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alchemy_gpio_direction_output(214, 0);
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#endif
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#ifdef CONFIG_PCI
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#if defined(__MIPSEB__)
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au_writel(0xf | (2 << 6) | (1 << 4), Au1500_PCI_CFG);
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#else
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au_writel(0xf, Au1500_PCI_CFG);
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#endif
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#endif
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}
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