146 lines
4.0 KiB
C
146 lines
4.0 KiB
C
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/*
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*
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* BRIEF MODULE DESCRIPTION
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* Alchemy Db1x00 board setup.
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*
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* Copyright 2000, 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 <asm/mach-au1x00/au1000.h>
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#include <asm/mach-db1x00/db1x00.h>
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#include <prom.h>
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static BCSR * const bcsr = (BCSR *)BCSR_KSEG1_ADDR;
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const char *get_system_type(void)
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{
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#ifdef CONFIG_MIPS_BOSPORUS
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return "Alchemy Bosporus Gateway Reference";
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#else
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return "Alchemy Db1x00";
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#endif
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}
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void board_reset(void)
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{
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/* Hit BCSR.SW_RESET[RESET] */
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bcsr->swreset = 0x0000;
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}
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void __init board_setup(void)
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{
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u32 pin_func = 0;
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char *argptr;
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argptr = prom_getcmdline();
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#ifdef CONFIG_SERIAL_8250_CONSOLE
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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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#ifdef CONFIG_FB_AU1100
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argptr = strstr(argptr, "video=");
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if (argptr == NULL) {
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argptr = prom_getcmdline();
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/* default panel */
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/*strcat(argptr, " video=au1100fb:panel:Sharp_320x240_16");*/
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}
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#endif
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#if defined(CONFIG_SOUND_AU1X00) && !defined(CONFIG_SOC_AU1000)
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/* au1000 does not support vra, au1500 and au1100 do */
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strcat(argptr, " au1000_audio=vra");
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argptr = prom_getcmdline();
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#endif
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/* Not valid for Au1550 */
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#if defined(CONFIG_IRDA) && \
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(defined(CONFIG_SOC_AU1000) || defined(CONFIG_SOC_AU1100))
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/* Set IRFIRSEL instead of GPIO15 */
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pin_func = au_readl(SYS_PINFUNC) | SYS_PF_IRF;
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au_writel(pin_func, SYS_PINFUNC);
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/* Power off until the driver is in use */
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bcsr->resets &= ~BCSR_RESETS_IRDA_MODE_MASK;
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bcsr->resets |= BCSR_RESETS_IRDA_MODE_OFF;
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au_sync();
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#endif
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bcsr->pcmcia = 0x0000; /* turn off PCMCIA power */
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/* Enable GPIO[31:0] inputs */
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alchemy_gpio1_input_enable();
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#ifdef CONFIG_MIPS_MIRAGE
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/* GPIO[20] is output */
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alchemy_gpio_direction_output(20, 0);
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/* Set GPIO[210:208] instead of SSI_0 */
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pin_func = au_readl(SYS_PINFUNC) | SYS_PF_S0;
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/* Set GPIO[215:211] for LEDs */
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pin_func |= 5 << 2;
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/* Set GPIO[214:213] for more LEDs */
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pin_func |= 5 << 12;
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/* Set GPIO[207:200] instead of PCMCIA/LCD */
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pin_func |= SYS_PF_LCD | SYS_PF_PC;
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au_writel(pin_func, SYS_PINFUNC);
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/*
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* Enable speaker amplifier. This should
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* be part of the audio driver.
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*/
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alchemy_gpio_direction_output(209, 1);
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#endif
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au_sync();
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#ifdef CONFIG_MIPS_DB1000
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printk(KERN_INFO "AMD Alchemy Au1000/Db1000 Board\n");
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#endif
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#ifdef CONFIG_MIPS_DB1500
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printk(KERN_INFO "AMD Alchemy Au1500/Db1500 Board\n");
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#endif
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#ifdef CONFIG_MIPS_DB1100
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printk(KERN_INFO "AMD Alchemy Au1100/Db1100 Board\n");
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#endif
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#ifdef CONFIG_MIPS_BOSPORUS
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printk(KERN_INFO "AMD Alchemy Bosporus Board\n");
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#endif
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#ifdef CONFIG_MIPS_MIRAGE
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printk(KERN_INFO "AMD Alchemy Mirage Board\n");
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#endif
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#ifdef CONFIG_MIPS_DB1550
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printk(KERN_INFO "AMD Alchemy Au1550/Db1550 Board\n");
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#endif
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}
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