Add flashmap support for AMIT and Zyxel boards, thanks sn9

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13063 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 150 insertions, 3 deletions

diff --git a/target/linux/rdc/files/arch/i386/mach-rdc/platform.c b/target/linux/rdc/files/arch/i386/mach-rdc/platform.c
index 31af6fcc3..a58ee0f42 100644
--- a/target/linux/rdc/files/arch/i386/mach-rdc/platform.c
+++ b/target/linux/rdc/files/arch/i386/mach-rdc/platform.c
@@ -3,8 +3,9 @@
  *
  *  Generic RDC321x platform devices
  *
- *  Copyright (C) 2007 OpenWrt.org
+ *  Copyright (C) 2007-2008 OpenWrt.org
  *  Copyright (C) 2007 Florian Fainelli <florian@openwrt.org>
+ *  Copyright (C) 2008 Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>
  *
  *  This program is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU General Public License
@@ -32,10 +33,14 @@
 #include <linux/leds.h>
 #include <linux/gpio_keys.h>
 #include <linux/input.h>
-
+#include <linux/mtd/map.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/physmap.h>
+#include <linux/root_dev.h>
 #include <asm/gpio.h>
 
 /* Flash */
+#ifdef CONFIG_MTD_RDC3210
 static struct resource rdc_flash_resource[] = {
 	[0] = {
 		.start = (u32)-CONFIG_MTD_RDC3210_SIZE,
@@ -50,6 +55,26 @@ static struct platform_device rdc_flash_device = {
 	.num_resources = ARRAY_SIZE(rdc_flash_resource),
 	.resource = rdc_flash_resource,
 };
+#else
+static struct mtd_partition rdc_flash_parts[15];
+
+static struct resource rdc_flash_resource = {
+	.end = (u32)-1,
+	.flags = IORESOURCE_MEM,
+};
+
+static struct physmap_flash_data rdc_flash_data = {
+	.parts = rdc_flash_parts,
+};
+
+static struct platform_device rdc_flash_device = {
+	.name = "physmap-flash",
+	.id = -1,
+	.resource = &rdc_flash_resource,
+	.num_resources = 1,
+	.dev.platform_data = &rdc_flash_data,
+};
+#endif
 
 /* LEDS */
 static struct gpio_led default_leds[] = {
@@ -106,9 +131,131 @@ static struct platform_device *rdc321x_devs[] = {
 	&rdc321x_button
 };
 
-static int __init rdc_board_setup(void)
+static int probe_flash_start(struct map_info *the_map)
 {
+	struct mtd_info *res;
+
+	the_map->virt = ioremap(the_map->phys, the_map->size);
+	if (the_map->virt == NULL)
+		return 1;
+	for (the_map->bankwidth = 32; the_map->bankwidth; the_map->bankwidth
+			>>= 1) {
+		res = do_map_probe("cfi_probe", the_map);
+		if (res == NULL)
+			res = do_map_probe("jedec_probe", the_map);
+		if (res != NULL)
+			break;
+	}
+	iounmap(the_map->virt);
+	if (res != NULL)
+		the_map->phys = (u32)-(s32)(the_map->size = res->size);
+	return res == NULL;
+}
+
+static __init int rdc_board_setup(void)
+{
+#ifndef CONFIG_MTD_RDC3210
+	struct map_info rdc_map_info;
+	u32 the_header[4];
+
+	ROOT_DEV = 0;
+	rdc_map_info.name = rdc_flash_device.name;
+	rdc_map_info.phys = 0xff000000;
+	rdc_map_info.size = 0x1000000;
+	rdc_map_info.bankwidth = 2;
+	rdc_map_info.set_vpp = NULL;
+	simple_map_init(&rdc_map_info);
+	while (probe_flash_start(&rdc_map_info)) {
+		rdc_map_info.phys++;
+		if (--rdc_map_info.size)
+			panic("Not to be or to be: That"
+				" is not the question.");
+	}
+	rdc_flash_resource.start = rdc_map_info.phys;
+	rdc_flash_data.width = rdc_map_info.bankwidth;
+	rdc_map_info.virt = (u32)ioremap_nocache(rdc_map_info.phys, 0x10);
+	if (rdc_map_info.virt == NULL)
+		panic("Something's rotten in Denmark!");
+	the_header[0] = ((u32 *)rdc_map_info.virt)[0];
+	the_header[1] = ((u32 *)rdc_map_info.virt)[1];
+	the_header[2] = ((u32 *)rdc_map_info.virt)[2];
+	the_header[3] = ((u32 *)rdc_map_info.virt)[3];
+	iounmap(rdc_map_info.virt);
+	if (!memcmp(the_header, "GMTK", 4)) {	/* Gemtek */
+		/* TODO */
+	} else if (!memcmp(the_header, "CSYS", 4)) {	/* Sitecom */
+		/* TODO */
+	} else if (!memcmp(((u8 *)the_header) + 14, "Li", 2)) {	/* AMIT */
+		rdc_flash_parts[0].name = "kernel_parthdr";
+		rdc_flash_parts[0].offset = 0;
+		rdc_flash_parts[0].size = 0x10;
+		rdc_flash_parts[1].name = "kernel";
+		rdc_flash_parts[1].offset = 0x10;
+		rdc_flash_parts[1].size = 0xffff0;
+		rdc_flash_parts[2].name = "rootfs_parthdr";
+		rdc_flash_parts[2].offset = 0x100000;
+		rdc_flash_parts[2].size = 0x10;
+		rdc_flash_parts[3].name = "rootfs";
+		rdc_flash_parts[3].offset = 0x100010;
+		rdc_flash_parts[3].size = rdc_map_info.size - 0x160010;
+		rdc_flash_parts[4].name = "config_parthdr";
+		rdc_flash_parts[4].offset = rdc_map_info.size - 0x60000;
+		rdc_flash_parts[4].size = 0x10;
+		rdc_flash_parts[5].name = "config";
+		rdc_flash_parts[5].offset = rdc_map_info.size - 0x5fff0;
+		rdc_flash_parts[5].size = 0xfff0;
+		rdc_flash_parts[6].name = "recoveryfs_parthdr";
+		rdc_flash_parts[6].offset = rdc_map_info.size - 0x50000;
+		rdc_flash_parts[6].size = 0x10;
+		rdc_flash_parts[7].name = "recoveryfs";
+		rdc_flash_parts[7].offset = rdc_map_info.size - 0x4fff0;
+		rdc_flash_parts[7].size = 0x3fff0;
+		rdc_flash_parts[8].name = "recovery_parthdr";
+		rdc_flash_parts[8].offset = rdc_map_info.size - 0x10000;
+		rdc_flash_parts[8].size = 0x10;
+		rdc_flash_parts[9].name = "recovery";
+		rdc_flash_parts[9].offset = rdc_map_info.size - 0xfff0;
+		rdc_flash_parts[9].size = 0x7ff0;
+		rdc_flash_parts[10].name = "productinfo_parthdr";
+		rdc_flash_parts[10].offset = rdc_map_info.size - 0x8000;
+		rdc_flash_parts[10].size = 0x10;
+		rdc_flash_parts[11].name = "productinfo";
+		rdc_flash_parts[11].offset = rdc_map_info.size - 0x7ff0;
+		rdc_flash_parts[11].size = 0x1ff0;
+		rdc_flash_parts[12].name = "bootloader_parthdr";
+		rdc_flash_parts[12].offset = rdc_map_info.size - 0x6000;
+		rdc_flash_parts[12].size = 0x10;
+		rdc_flash_parts[13].name = "bootloader";
+		rdc_flash_parts[13].offset = rdc_map_info.size - 0x5ff0;
+		rdc_flash_parts[13].size = 0x5ff0;
+		rdc_flash_parts[14].name = "everything";
+		rdc_flash_parts[14].offset = 0;
+		rdc_flash_parts[14].size = rdc_map_info.size;
+		rdc_flash_data.nr_parts = 15;
+	} else {	/* ZyXEL */
+		rdc_flash_parts[0].name = "kernel";
+		rdc_flash_parts[0].offset = 0;
+		rdc_flash_parts[0].size = 0x100000;
+		rdc_flash_parts[1].name = "rootfs";
+		rdc_flash_parts[1].offset = 0x100000;
+		rdc_flash_parts[1].size = rdc_map_info.size - 0x140000;
+		rdc_flash_parts[2].name = "config";
+		rdc_flash_parts[2].offset = rdc_map_info.size - 0x40000;
+		rdc_flash_parts[2].size = 0x10000;
+		rdc_flash_parts[3].name = "productinfo";
+		rdc_flash_parts[3].offset = rdc_map_info.size - 0x30000;
+		rdc_flash_parts[3].size = 0x10000;
+		rdc_flash_parts[4].name = "bootloader";
+		rdc_flash_parts[4].offset = rdc_map_info.size - 0x20000;
+		rdc_flash_parts[4].size = 0x20000;
+		rdc_flash_data.nr_parts = 5;
+	}
+#endif
 	return platform_add_devices(rdc321x_devs, ARRAY_SIZE(rdc321x_devs));
 }
 
+#ifdef CONFIG_MTD_RDC3210
 arch_initcall(rdc_board_setup);
+#else
+late_initcall(rdc_board_setup);
+#endif