add all source code from linksys/broadcom which is free, to cvs for better maintainence inside

openwrt. this gives us the ability to better support different hardware models, without changing
any external tar-balls. only et.o and wl.o is missing and is fetched from my webserver.


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@379 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 251 insertions, 0 deletions

diff --git a/openwrt/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/setup.c b/openwrt/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/setup.c
new file mode 100644
index 000000000..e1b0050a4
--- /dev/null
+++ b/openwrt/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/setup.c
@@ -0,0 +1,251 @@
+/*
+ * Generic setup routines for Broadcom MIPS boards
+ *
+ * Copyright 2004, Broadcom Corporation
+ * All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ * $Id$
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/serialP.h>
+#include <linux/ide.h>
+#include <asm/bootinfo.h>
+#include <asm/time.h>
+#include <asm/reboot.h>
+
+#ifdef CONFIG_MTD_PARTITIONS
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#endif
+
+#include <typedefs.h>
+#include <bcmutils.h>
+#include <bcmnvram.h>
+#include <sbmips.h>
+#include <sbutils.h>
+#include <trxhdr.h>
+
+extern void bcm947xx_time_init(void);
+extern void bcm947xx_timer_setup(struct irqaction *irq);
+
+#ifdef CONFIG_REMOTE_DEBUG
+extern void set_debug_traps(void);
+extern void rs_kgdb_hook(struct serial_state *);
+extern void breakpoint(void);
+#endif
+
+#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
+extern struct ide_ops std_ide_ops;
+#endif
+
+/* Global SB handle */
+void *bcm947xx_sbh = NULL;
+spinlock_t bcm947xx_sbh_lock = SPIN_LOCK_UNLOCKED;
+EXPORT_SYMBOL(bcm947xx_sbh);
+EXPORT_SYMBOL(bcm947xx_sbh_lock);
+
+/* Convenience */
+#define sbh bcm947xx_sbh
+#define sbh_lock bcm947xx_sbh_lock
+
+/* Kernel command line */
+char arcs_cmdline[CL_SIZE] __initdata = CONFIG_CMDLINE;
+
+void
+bcm947xx_machine_restart(char *command)
+{
+	printk("Please stand by while rebooting the system...\n");
+
+	/* Set the watchdog timer to reset immediately */
+	__cli();
+	sb_watchdog(sbh, 1);
+	while (1);
+}
+
+void
+bcm947xx_machine_halt(void)
+{
+	printk("System halted\n");
+
+	/* Disable interrupts and watchdog and spin forever */
+	__cli();
+	sb_watchdog(sbh, 0);
+	while (1);
+}
+
+#ifdef CONFIG_SERIAL
+
+static struct serial_struct rs = {
+	line: 0,
+	flags: ASYNC_BOOT_AUTOCONF,
+	io_type: SERIAL_IO_MEM,
+};
+
+static void __init
+serial_add(void *regs, uint irq, uint baud_base, uint reg_shift)
+{
+	rs.iomem_base = regs;
+	rs.irq = irq + 2;
+	rs.baud_base = baud_base / 16;
+	rs.iomem_reg_shift = reg_shift;
+
+	early_serial_setup(&rs);
+
+	rs.line++;
+}
+
+static void __init
+serial_setup(void *sbh)
+{
+	sb_serial_init(sbh, serial_add);
+
+#ifdef CONFIG_REMOTE_DEBUG
+	/* Use the last port for kernel debugging */
+	if (rs.iomem_base)
+		rs_kgdb_hook(&rs);
+#endif
+}
+
+#endif /* CONFIG_SERIAL */
+
+void __init
+brcm_setup(void)
+{
+	char *value;
+
+	/* Get global SB handle */
+	sbh = sb_kattach();
+
+	/* Initialize clocks and interrupts */
+	sb_mips_init(sbh);
+
+#ifdef CONFIG_SERIAL
+	/* Initialize UARTs */
+	serial_setup(sbh);
+#endif
+
+#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
+	ide_ops = &std_ide_ops;
+#endif
+
+	/* Override default command line arguments */
+	value = nvram_get("kernel_args");
+	if (value && strlen(value) && strncmp(value, "empty", 5))
+		strncpy(arcs_cmdline, value, sizeof(arcs_cmdline));
+
+
+	/* Generic setup */
+	_machine_restart = bcm947xx_machine_restart;
+	_machine_halt = bcm947xx_machine_halt;
+	_machine_power_off = bcm947xx_machine_halt;
+
+	board_time_init = bcm947xx_time_init;
+	board_timer_setup = bcm947xx_timer_setup;
+}
+
+const char *
+get_system_type(void)
+{
+	return "Broadcom BCM947XX";
+}
+
+void __init
+bus_error_init(void)
+{
+}
+
+#ifdef CONFIG_MTD_PARTITIONS
+
+static struct mtd_partition bcm947xx_parts[] = {
+	{ name: "pmon",	offset: 0, size: 0, mask_flags: MTD_WRITEABLE, },
+	{ name: "linux", offset: 0, size: 0, },
+	{ name: "rootfs", offset: 0, size: 0, },
+	{ name: "nvram", offset: 0, size: 0, },
+	{ name: "OpenWrt", offset: 0, size: 0, },
+	{ name: NULL, },
+};
+
+static int __init
+find_root(struct mtd_info *mtd, size_t size, struct mtd_partition *part)
+{
+	struct trx_header *trx;
+	unsigned char buf[512];
+	int off;
+	size_t len;
+
+	trx = (struct trx_header *) buf;
+
+	for (off = (256*1024); off < size; off += mtd->erasesize) {
+		memset(buf, 0xe5, sizeof(buf));
+
+		/*
+		 * Read into buffer 
+		 */
+		if (MTD_READ(mtd, off, sizeof(buf), &len, buf) ||
+		    len != sizeof(buf))
+			continue;
+
+		/* found a TRX header */
+		if (le32_to_cpu(trx->magic) == TRX_MAGIC) {
+			part->offset = le32_to_cpu(trx->offsets[1]);
+			part->size = le32_to_cpu(trx->len); 
+
+			part->size -= part->offset;
+			part->offset += off;
+
+			goto done;
+		}
+	}
+
+	printk(KERN_NOTICE
+	       "%s: Couldn't find root filesystem\n",
+	       mtd->name);
+	return -1;
+
+ done:
+		return part->size;
+}
+
+struct mtd_partition * __init
+init_mtd_partitions(struct mtd_info *mtd, size_t size)
+{
+
+	/* boot loader */
+	bcm947xx_parts[0].offset=0;
+	bcm947xx_parts[0].size=256*1024;
+
+	/* nvram */
+	bcm947xx_parts[3].offset = size - ROUNDUP(NVRAM_SPACE, mtd->erasesize);
+	bcm947xx_parts[3].size   = size - bcm947xx_parts[3].offset;
+
+	/* Size linux (kernel and rootfs) */
+	bcm947xx_parts[1].offset = bcm947xx_parts[0].size;
+	bcm947xx_parts[1].size   = bcm947xx_parts[3].offset - bcm947xx_parts[1].offset;
+
+	/* Find and size rootfs */
+	if (find_root(mtd,size,&bcm947xx_parts[2])==0) {
+		/* entirely jffs2 */
+		bcm947xx_parts[2].size = bcm947xx_parts[3].offset - bcm947xx_parts[2].offset; 
+		bcm947xx_parts[4].name = NULL;
+	} else {
+		/* legacy setup */
+		/* calculate leftover flash, and assign it to the jffs2 partition */
+		bcm947xx_parts[4].offset = bcm947xx_parts[2].offset + bcm947xx_parts[2].size;
+		bcm947xx_parts[4].offset = ROUNDUP(bcm947xx_parts[4].offset, mtd->erasesize);
+		bcm947xx_parts[4].size = bcm947xx_parts[3].offset - bcm947xx_parts[4].offset;
+	}
+
+	return bcm947xx_parts;
+}
+
+EXPORT_SYMBOL(init_mtd_partitions);
+
+#endif