[ar71xx] add MyLoader support

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@12627 3c298f89-4303-0410-b956-a3cf2f4a3e73

5 files changed, 134 insertions, 41 deletions

diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/Kconfig b/target/linux/ar71xx/files/arch/mips/ar71xx/Kconfig
index 274c3ede1..8640b2cc5 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/Kconfig
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/Kconfig
@@ -12,6 +12,7 @@ config AR71XX_MACH_GENERIC
 
 config AR71XX_MACH_WP543
 	bool "Compex WP543 board support"
+	select MYLOADER
 	default y
 
 config AR71XX_MACH_RB_4XX
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/platform.c b/target/linux/ar71xx/files/arch/mips/ar71xx/platform.c
index db804fbb9..9e62114b1 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/platform.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/platform.c
@@ -414,7 +414,12 @@ err_free_buttons:
 	kfree(p);
 }
 
-void __init ar71xx_set_mac_base(char *mac_str)
+void __init ar71xx_set_mac_base(unsigned char *mac)
+{
+	memcpy(ar71xx_mac_base, mac, ETH_ALEN);
+}
+
+void __init ar71xx_parse_mac_addr(char *mac_str)
 {
 	u8 tmp[ETH_ALEN];
 	int t;
@@ -423,7 +428,7 @@ void __init ar71xx_set_mac_base(char *mac_str)
 			&tmp[0], &tmp[1], &tmp[2], &tmp[3], &tmp[4], &tmp[5]);
 
 	if (t == ETH_ALEN)
-		memcpy(ar71xx_mac_base, tmp, ETH_ALEN);
+		ar71xx_set_mac_base(tmp);
 	else
 		printk(KERN_DEBUG "AR71XX: failed to parse mac address "
 				"\"%s\"\n", mac_str);
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/prom.c b/target/linux/ar71xx/files/arch/mips/ar71xx/prom.c
index 69425d50c..d22c593e1 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/prom.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/prom.c
@@ -16,6 +16,7 @@
 
 #include <asm/bootinfo.h>
 #include <asm/addrspace.h>
+#include <asm/fw/myloader/myloader.h>
 
 #include <asm/mach-ar71xx/ar71xx.h>
 #include <asm/mach-ar71xx/platform.h>
@@ -42,34 +43,31 @@ static struct board_rec boards[] __initdata = {
 	}
 };
 
-static __init void routerboot_printargs(void)
+static __init char *ar71xx_prom_getargv(const char *name)
 {
+	int len = strlen(name);
 	int i;
 
-	for (i = 0; i < ar71xx_prom_argc; i++)
-		printk(KERN_DEBUG "prom: routerboot envp[%d]: %s\n",
-				i, ar71xx_prom_argv[i]);
-}
-
-static __init char *routerboot_getenv(const char *envname)
-{
-	int len = strlen(envname);
-	int i;
+	if (!ar71xx_prom_argv)
+		return NULL;
 
 	for (i = 0; i < ar71xx_prom_argc; i++) {
-		char *env = ar71xx_prom_argv[i];
-		if (strncmp(envname, env, len) == 0 && (env)[len] == '=')
-			return env + len + 1;
+		char *argv = ar71xx_prom_argv[i];
+		if (strncmp(name, argv, len) == 0 && (argv)[len] == '=')
+			return argv + len + 1;
 	}
 
 	return NULL;
 }
 
-static __init char *redboot_getenv(const char *envname)
+static __init char *ar71xx_prom_getenv(const char *envname)
 {
 	int len = strlen(envname);
 	char **env;
 
+	if (!ar71xx_prom_envp)
+		return NULL;
+
 	for (env = ar71xx_prom_envp; *env != NULL; env++)
 		if (strncmp(envname, *env, len) == 0 && (*env)[len] == '=')
 			return *env + len + 1;
@@ -88,40 +86,61 @@ static __init unsigned long find_board_byname(char *name)
 	return MACH_AR71XX_GENERIC;
 }
 
-void __init prom_init(void)
+static int ar71xx_prom_init_myloader(void)
 {
-	char *board = NULL;
-	char *mac = NULL;
+	struct myloader_info *mylo;
+
+	mylo = myloader_get_info();
+	if (!mylo)
+		return 0;
+
+	switch (mylo->did) {
+	case DEVID_COMPEX_WP543:
+		mips_machtype = MACH_AR71XX_WP543;
+		break;
+	default:
+		printk(KERN_WARNING "prom: unknown device id: %x\n",
+				mylo->did);
+	}
+	ar71xx_set_mac_base(mylo->macs[0]);
 
+	return 1;
+}
+
+static void ar71xx_prom_init_generic(void)
+{
+	char *p;
+
+	ar71xx_prom_argc = fw_arg0;
+	ar71xx_prom_argv = (char **)fw_arg1;
+	ar71xx_prom_envp = (char **)fw_arg2;
+
+	p = ar71xx_prom_getenv("board");
+	if (!p)
+		p = ar71xx_prom_getargv("board");
+	if (p)
+		mips_machtype = find_board_byname(p);
+
+	p = ar71xx_prom_getenv("ethaddr");
+	if (!p)
+		p = ar71xx_prom_getargv("kmac");
+	if (p)
+		ar71xx_parse_mac_addr(p);
+}
+
+void __init prom_init(void)
+{
 	printk(KERN_DEBUG "prom: fw_arg0=%08x, fw_arg1=%08x, "
 			"fw_arg2=%08x, fw_arg3=%08x\n",
 			(unsigned int)fw_arg0, (unsigned int)fw_arg1,
 			(unsigned int)fw_arg2, (unsigned int)fw_arg3);
 
-	if ((fw_arg0 == 7) && (fw_arg2 == 0) && (fw_arg3 == 0)) {
-		 /* assume RouterBOOT */
-		ar71xx_prom_argc = fw_arg0;
-		ar71xx_prom_argv = (char **)fw_arg1;
-		routerboot_printargs();
-		board = routerboot_getenv("board");
-		mac = routerboot_getenv("kmac");
-	} else {
-		/* assume Redboot */
-		ar71xx_prom_argc = fw_arg0;
-		ar71xx_prom_argv = (char **)fw_arg1;
-		ar71xx_prom_envp = (char **)fw_arg2;
-		mac = redboot_getenv("ethaddr");
-	}
-
-	if (board)
-		mips_machtype = find_board_byname(board);
-	else
-		mips_machtype = MACH_AR71XX_GENERIC;
+	mips_machtype = MACH_AR71XX_GENERIC;
 
-	if (mac)
-		ar71xx_set_mac_base(mac);
+	if (ar71xx_prom_init_myloader())
+		return;
 
-	ar71xx_print_cmdline();
+	ar71xx_prom_init_generic();
 }
 
 void __init prom_free_prom_memory(void)
diff --git a/target/linux/ar71xx/files/arch/mips/fw/myloader/Makefile b/target/linux/ar71xx/files/arch/mips/fw/myloader/Makefile
new file mode 100644
index 000000000..34acfd01c
--- /dev/null
+++ b/target/linux/ar71xx/files/arch/mips/fw/myloader/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the Compex's MyLoader support on MIPS architecture
+#
+
+lib-y += myloader.o
diff --git a/target/linux/ar71xx/files/arch/mips/fw/myloader/myloader.c b/target/linux/ar71xx/files/arch/mips/fw/myloader/myloader.c
new file mode 100644
index 000000000..a26f9ad3f
--- /dev/null
+++ b/target/linux/ar71xx/files/arch/mips/fw/myloader/myloader.c
@@ -0,0 +1,63 @@
+/*
+ *  Compex's MyLoader specific prom routines
+ *
+ *  Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/string.h>
+
+#include <asm/addrspace.h>
+#include <asm/fw/myloader/myloader.h>
+
+#define SYS_PARAMS_ADDR		KSEG1ADDR(0x80000800)
+#define BOARD_PARAMS_ADDR	KSEG1ADDR(0x80000A00)
+#define PART_TABLE_ADDR		KSEG1ADDR(0x80000C00)
+#define BOOT_PARAMS_ADDR	KSEG1ADDR(0x80000E00)
+
+static struct myloader_info myloader_info __initdata;
+static int myloader_found __initdata;
+
+struct myloader_info * __init myloader_get_info(void)
+{
+	struct mylo_system_params *sysp;
+	struct mylo_board_params *boardp;
+	struct mylo_partition_table *parts;
+
+	if (myloader_found)
+		return &myloader_info;
+
+	sysp = (struct mylo_system_params *)(SYS_PARAMS_ADDR);
+	boardp = (struct mylo_board_params *)(BOARD_PARAMS_ADDR);
+	parts = (struct mylo_partition_table *)(PART_TABLE_ADDR);
+
+	printk(KERN_DEBUG "MyLoader: sysp=%08x, boardp=%08x, parts=%08x\n",
+		sysp->magic, boardp->magic, parts->magic);
+
+	/* Check for some magic numbers */
+	if (sysp->magic != MYLO_MAGIC_SYS_PARAMS ||
+	    boardp->magic != MYLO_MAGIC_BOARD_PARAMS ||
+	    le32_to_cpu(parts->magic) != MYLO_MAGIC_PARTITIONS)
+		return NULL;
+
+	printk(KERN_DEBUG "MyLoader: id=%04x:%04x, sub_id=%04x:%04x\n",
+		sysp->vid, sysp->did, sysp->svid, sysp->sdid);
+
+	myloader_info.vid = sysp->vid;
+	myloader_info.did = sysp->did;
+	myloader_info.svid = sysp->svid;
+	myloader_info.sdid = sysp->sdid;
+
+	memcpy(myloader_info.macs, boardp->addr, sizeof(myloader_info.macs));
+
+	myloader_found = 1;
+
+	return &myloader_info;
+}