patch-2.4.20 linux-2.4.20/arch/mips/au1000/pb1100/setup.c
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- Lines: 249
- Date:
Thu Nov 28 15:53:09 2002
- Orig file:
linux-2.4.19/arch/mips/au1000/pb1100/setup.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -urN linux-2.4.19/arch/mips/au1000/pb1100/setup.c linux-2.4.20/arch/mips/au1000/pb1100/setup.c
@@ -0,0 +1,248 @@
+/*
+ *
+ * BRIEF MODULE DESCRIPTION
+ * Alchemy Pb1100 board setup.
+ *
+ * Copyright 2002 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ * ppopov@mvista.com or source@mvista.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/ioport.h>
+#include <linux/mm.h>
+#include <linux/console.h>
+#include <linux/mc146818rtc.h>
+#include <linux/delay.h>
+
+#include <asm/cpu.h>
+#include <asm/bootinfo.h>
+#include <asm/irq.h>
+#include <asm/keyboard.h>
+#include <asm/mipsregs.h>
+#include <asm/reboot.h>
+#include <asm/pgtable.h>
+#include <asm/au1000.h>
+#include <asm/pb1100.h>
+
+#ifdef CONFIG_USB_OHCI
+// Enable the workaround for the OHCI DoneHead
+// register corruption problem.
+#define CONFIG_AU1000_OHCI_FIX
+#endif
+
+#if defined(CONFIG_AU1000_SERIAL_CONSOLE)
+extern void console_setup(char *, int *);
+char serial_console[20];
+#endif
+
+#ifdef CONFIG_BLK_DEV_INITRD
+extern unsigned long initrd_start, initrd_end;
+extern void * __rd_start, * __rd_end;
+#endif
+
+#ifdef CONFIG_BLK_DEV_IDE
+extern struct ide_ops std_ide_ops;
+extern struct ide_ops *ide_ops;
+#endif
+
+#ifdef CONFIG_RTC
+extern struct rtc_ops pb1500_rtc_ops;
+#endif
+
+extern char * __init prom_getcmdline(void);
+extern void au1000_restart(char *);
+extern void au1000_halt(void);
+extern void au1000_power_off(void);
+extern struct resource ioport_resource;
+extern struct resource iomem_resource;
+
+
+void __init bus_error_init(void) { /* nothing */ }
+
+void __init au1100_setup(void)
+{
+ char *argptr;
+ u32 pin_func, static_cfg0;
+ u32 sys_freqctrl, sys_clksrc;
+
+ argptr = prom_getcmdline();
+
+ /* NOTE: The memory map is established by YAMON 2.08+ */
+
+ /* Various early Au1000 Errata corrected by this */
+ set_cp0_config(1<<19); /* Config[OD] */
+
+#ifdef CONFIG_AU1000_SERIAL_CONSOLE
+ if ((argptr = strstr(argptr, "console=")) == NULL) {
+ argptr = prom_getcmdline();
+ strcat(argptr, " console=ttyS0,115200");
+ }
+#endif
+
+#ifdef CONFIG_SOUND_AU1000
+ strcat(argptr, " au1000_audio=vra");
+ argptr = prom_getcmdline();
+#endif
+
+ _machine_restart = au1000_restart;
+ _machine_halt = au1000_halt;
+ _machine_power_off = au1000_power_off;
+
+ // IO/MEM resources.
+ set_io_port_base(0);
+ ioport_resource.start = 0x10000000;
+ ioport_resource.end = 0xffffffff;
+ iomem_resource.start = 0x10000000;
+ iomem_resource.end = 0xffffffff;
+
+#ifdef CONFIG_BLK_DEV_INITRD
+ ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0);
+ initrd_start = (unsigned long)&__rd_start;
+ initrd_end = (unsigned long)&__rd_end;
+#endif
+
+ // set AUX clock to 12MHz * 8 = 96 MHz
+ au_writel(8, SYS_AUXPLL);
+ au_writel(0, SYS_PININPUTEN);
+ udelay(100);
+
+#if defined (CONFIG_USB_OHCI) || defined (CONFIG_AU1000_USB_DEVICE)
+#ifdef CONFIG_USB_OHCI
+ if ((argptr = strstr(argptr, "usb_ohci=")) == NULL) {
+ char usb_args[80];
+ argptr = prom_getcmdline();
+ memset(usb_args, 0, sizeof(usb_args));
+ sprintf(usb_args, " usb_ohci=base:0x%x,len:0x%x,irq:%d",
+ USB_OHCI_BASE, USB_OHCI_LEN, AU1000_USB_HOST_INT);
+ strcat(argptr, usb_args);
+ }
+#endif
+ // configure pins GPIO[14:9] as GPIO
+ pin_func = au_readl(SYS_PINFUNC) & (u32)(~0x80);
+
+ /* zero and disable FREQ2 */
+ sys_freqctrl = au_readl(SYS_FREQCTRL0);
+ sys_freqctrl &= ~0xFFF00000;
+ au_writel(sys_freqctrl, SYS_FREQCTRL0);
+
+ /* zero and disable USBH/USBD/IrDA clock */
+ sys_clksrc = au_readl(SYS_CLKSRC);
+ sys_clksrc &= ~0x0000001F;
+ au_writel(sys_clksrc, SYS_CLKSRC);
+
+ sys_freqctrl = au_readl(SYS_FREQCTRL0);
+ sys_freqctrl &= ~0xFFF00000;
+
+ sys_clksrc = au_readl(SYS_CLKSRC);
+ sys_clksrc &= ~0x0000001F;
+
+ // FREQ2 = aux/2 = 48 MHz
+ sys_freqctrl |= ((0<<22) | (1<<21) | (1<<20));
+ au_writel(sys_freqctrl, SYS_FREQCTRL0);
+
+ /*
+ * Route 48MHz FREQ2 into USBH/USBD/IrDA
+ */
+ sys_clksrc |= ((4<<2) | (0<<1) | 0 );
+ au_writel(sys_clksrc, SYS_CLKSRC);
+
+ /* setup the static bus controller */
+ au_writel(0x00000002, MEM_STCFG3); /* type = PCMCIA */
+ au_writel(0x280E3D07, MEM_STTIME3); /* 250ns cycle time */
+ au_writel(0x10000000, MEM_STADDR3); /* any PCMCIA select */
+
+ // get USB Functionality pin state (device vs host drive pins)
+ pin_func = au_readl(SYS_PINFUNC) & (u32)(~0x8000);
+#ifndef CONFIG_AU1000_USB_DEVICE
+ // 2nd USB port is USB host
+ pin_func |= 0x8000;
+#endif
+ au_writel(pin_func, SYS_PINFUNC);
+#endif // defined (CONFIG_USB_OHCI) || defined (CONFIG_AU1000_USB_DEVICE)
+
+#ifdef CONFIG_USB_OHCI
+ // enable host controller and wait for reset done
+ au_writel(0x08, USB_HOST_CONFIG);
+ udelay(1000);
+ au_writel(0x0c, USB_HOST_CONFIG);
+ udelay(1000);
+ au_readl(USB_HOST_CONFIG);
+ while (!(au_readl(USB_HOST_CONFIG) & 0x10))
+ ;
+ au_readl(USB_HOST_CONFIG);
+#endif
+
+#ifdef CONFIG_FB
+ conswitchp = &dummy_con;
+#endif
+
+#ifdef CONFIG_FB_AU1100
+ if ((argptr = strstr(argptr, "video=")) == NULL) {
+ argptr = prom_getcmdline();
+ /* default panel */
+ strcat(argptr, " video=au1100fb:panel:Sharp_320x240_16");
+ }
+#endif
+
+#ifdef CONFIG_FB_E1356
+ if ((argptr = strstr(argptr, "video=")) == NULL) {
+ argptr = prom_getcmdline();
+ strcat(argptr, " video=e1356fb:system:pb1500");
+ }
+#endif
+
+#ifndef CONFIG_SERIAL_NONSTANDARD
+ /* don't touch the default serial console */
+ au_writel(0, UART0_ADDR + UART_CLK);
+#endif
+ au_writel(0, UART1_ADDR + UART_CLK);
+ au_writel(0, UART3_ADDR + UART_CLK);
+
+#ifdef CONFIG_BLK_DEV_IDE
+ ide_ops = &std_ide_ops;
+#endif
+
+ while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_E0S);
+ au_writel(SYS_CNTRL_E0 | SYS_CNTRL_EN0, SYS_COUNTER_CNTRL);
+ au_sync();
+ while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_T0S);
+ au_writel(0, SYS_TOYTRIM);
+
+ au_writel(0x00000060, 0xb190003c);
+
+#ifdef CONFIG_RTC
+ rtc_ops = &pb1500_rtc_ops;
+ // Enable the RTC if not already enabled
+ if (!(readb(0xac000028) & 0x20)) {
+ writeb(readb(0xac000028) | 0x20, 0xac000028);
+ au_sync();
+ }
+ // Put the clock in BCD mode
+ if (readb(0xac00002C) & 0x4) { /* reg B */
+ writeb(readb(0xac00002c) & ~0x4, 0xac00002c);
+ au_sync();
+ }
+#endif
+}
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