将项目16Mflash改成4M

linux kernel修改：Index: linux-2.6.21.x/.config===================================================================--- linux-2.6.21.x/.config (revision 1713)+++ linux-2.6.21.x/.config (revision 17

飞翔到天边

2804人浏览 · 2013-05-21 18:58:25

飞翔到天边 · 2013-05-21 18:58:25 发布

linux kernel修改：

Index: linux-2.6.21.x/.config
===================================================================
--- linux-2.6.21.x/.config (revision 1713)
+++ linux-2.6.21.x/.config (revision 1714)
@@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.21
-# Thu Nov 3 22:02:30 2011
+# Mon May 20 15:09:34 2013
#
CONFIG_MIPS=y

@@ -17,8 +17,8 @@
# CONFIG_RALINK_RT3883 is not set
CONFIG_RT5350_ASIC=y
# CONFIG_RT2880_DRAM_8M is not set
-# CONFIG_RT2880_DRAM_16M is not set
-CONFIG_RT2880_DRAM_32M=y
+CONFIG_RT2880_DRAM_16M=y
+# CONFIG_RT2880_DRAM_32M is not set
# CONFIG_RT2880_DRAM_64M is not set
# CONFIG_RT2880_DRAM_128M is not set
# CONFIG_MTD_NOR_RALINK is not set
@@ -26,7 +26,7 @@
# CONFIG_MTD_NAND_RALINK is not set
# CONFIG_MTD_ANY_RALINK is not set
# CONFIG_DUAL_IMAGE is not set
-CONFIG_RALINK_RAM_SIZE=32
+CONFIG_RALINK_RAM_SIZE=16
CONFIG_MTD_PHYSMAP_START=0x1C000000
CONFIG_MTD_PHYSMAP_LEN=0x1000000
CONFIG_MTD_PHYSMAP_BUSWIDTH=2
@@ -1334,7 +1334,7 @@
# CONFIG_DEBUG_KERNEL is not set
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_CROSSCOMPILE is not set
-CONFIG_CMDLINE="console=ttyS1,57600n8 root=/dev/ram0"
+CONFIG_CMDLINE="console=ttyS1,57600n8 root=/dev/mtdblock3 imageA"
CONFIG_UBOOT_CMDLINE=y

#
Index: linux-2.6.21.x/drivers/mtd/ralink/ralink_spi.c
===================================================================
--- linux-2.6.21.x/drivers/mtd/ralink/ralink_spi.c (revision 1713)
+++ linux-2.6.21.x/drivers/mtd/ralink/ralink_spi.c (revision 1714)
@@ -96,12 +96,12 @@
{
name: "ImageA",
size: MTD_IMAGE_PART_SIZE,
- offset: MTDPART_OFS_APPEND,
+ offset: 0x50000,
},
{
name: "ImageB",
size: MTD_IMAGE_PART_SIZE,
- offset: MTDPART_OFS_APPEND,
+ offset: 0x50000,
},
{
name: "RootFS",
@@ -121,7 +121,7 @@
{
name: "syslog",
size: MTD_SYSLOG_PART_SIZE,
- offset: MTDPART_OFS_APPEND,
+ offset: MTD_SYSLOG_PART_OFFSET,
}
};

@@ -905,15 +905,15 @@
#endif
if (NULL != strstr(boot_command_line, "imageA"))
{
- offs = MTD_BOOT_PART_SIZE;
+ offs = MTD_BOOT_PART_SIZE + MTD_CONFIG_PART_SIZE + MTD_FACTORY_PART_SIZE;
ramtd_read(NULL, offs, sizeof(hdr), (size_t *)&i, (u_char *)(&hdr));
- rt2880_partitions[3].offset = MTD_BOOT_PART_SIZE + ntohl(hdr.ih_ksz);
+ rt2880_partitions[3].offset = MTD_BOOT_PART_SIZE + ntohl(hdr.ih_ksz) + MTD_CONFIG_PART_SIZE + MTD_FACTORY_PART_SIZE;
}
else if (NULL != strstr(boot_command_line, "imageB"))
{
- offs = MTD_BOOT_PART_SIZE + MTD_IMAGE_PART_SIZE;
+ offs = MTD_BOOT_PART_SIZE + MTD_CONFIG_PART_SIZE + MTD_FACTORY_PART_SIZE;
ramtd_read(NULL, offs, sizeof(hdr), (size_t *)&i, (u_char *)(&hdr));
- rt2880_partitions[3].offset = MTD_BOOT_PART_SIZE + MTD_IMAGE_PART_SIZE + ntohl(hdr.ih_ksz);
+ rt2880_partitions[3].offset = MTD_BOOT_PART_SIZE + ntohl(hdr.ih_ksz) + MTD_CONFIG_PART_SIZE + MTD_FACTORY_PART_SIZE;
}

rt2880_partitions[3].size = MTD_IMAGE_PART_SIZE - ntohl(hdr.ih_ksz);
Index: linux-2.6.21.x/drivers/mtd/maps/ralink-flash.h
===================================================================
--- linux-2.6.21.x/drivers/mtd/maps/ralink-flash.h (revision 1713)
+++ linux-2.6.21.x/drivers/mtd/maps/ralink-flash.h (revision 1714)
@@ -13,16 +13,16 @@
#endif

/*added by he 2011.7.20*/
-#define MTD_FLASH_PART_SIZE 0x1000000
+#define MTD_FLASH_PART_SIZE 0x400000
#define MTD_BOOT_PART_SIZE 0x30000
-#define MTD_CONFIG_PART_SIZE 0x40000
-#define MTD_FACTORY_PART_SIZE 0x40000
-#define MTD_IMAGE_PART_SIZE 0x700000
-#define MTD_SYSLOG_PART_SIZE MTD_FLASH_PART_SIZE - (MTD_BOOT_PART_SIZE + MTD_CONFIG_PART_SIZE + MTD_IMAGE_PART_SIZE \
- + MTD_IMAGE_PART_SIZE + MTD_FACTORY_PART_SIZE)
+#define MTD_CONFIG_PART_SIZE 0x10000
+#define MTD_FACTORY_PART_SIZE 0x10000
+#define MTD_IMAGE_PART_SIZE 0x360000
+#define MTD_SYSLOG_PART_SIZE MTD_FLASH_PART_SIZE - (MTD_BOOT_PART_SIZE + MTD_CONFIG_PART_SIZE + MTD_IMAGE_PART_SIZE + MTD_FACTORY_PART_SIZE)
+#define MTD_CONFIG_PART_OFFSET MTD_BOOT_PART_SIZE
+#define MTD_SYSLOG_PART_OFFSET MTD_BOOT_PART_SIZE + MTD_CONFIG_PART_SIZE + MTD_IMAGE_PART_SIZE + MTD_FACTORY_PART_SIZE

-#define MTD_CONFIG_PART_OFFSET MTD_BOOT_PART_SIZE + MTD_IMAGE_PART_SIZE + MTD_IMAGE_PART_SIZE
-/*end added*/
+/*end added*/
#endif

@@ -31,7 +31,7 @@
#define CONFIG_MTD_KERNEL_PART_SIZ 0
#endif

-#define MTD_ROOTFS_PART_SIZE IMAGE1_SIZE - (MTD_BOOT_PART_SIZE + MTD_CONFIG_PART_SIZE \
+#define MTD_ROOTFS_PART_SIZE MTD_FLASH_PART_SIZE - (MTD_BOOT_PART_SIZE + MTD_CONFIG_PART_SIZE \
+ MTD_FACTORY_PART_SIZE + CONFIG_MTD_KERNEL_PART_SIZ)

uboot修改：

Index: uboot_version.h
===================================================================
--- uboot_version.h (revision 1715)
+++ uboot_version.h (working copy)
@@ -6,4 +6,4 @@
* y = minor change (bug fix release)
* z = internal change (internal debuging)
*/
-#define RALINK_LOCAL_VERSION "3.5.2.0"
+#define RALINK_LOCAL_VERSION "3.5.2.1"
Index: config.in
===================================================================
--- config.in (revision 1715)
+++ config.in (working copy)
@@ -180,14 +180,26 @@
"
fi

-if [ "$RT2880_FPGA_BOARD" = "y" -o \
- "$RT2880_ASIC_BOARD" = "y" -o "$DUAL_IMAGE_SUPPORT" = "y" ]; then
+if [ "$RT2880_FPGA_BOARD" = "y" -o "$RT2880_ASIC_BOARD" = "y" -o "$DUAL_IMAGE_SUPPORT" = "y" ]; then
choice 'Flash Size' "4M ON_BOARD_4M_FLASH_COMPONENT \
8M ON_BOARD_8M_FLASH_COMPONENT \
16M ON_BOARD_16M_FLASH_COMPONENT
"
fi

+if [ "$RT3052_FPGA_BOARD" = "y" -o "$RT3052_ASIC_BOARD" = "y" -o "$DUAL_IMAGE_SUPPORT" = "y" ]; then
+choice 'Flash Size' "4M ON_BOARD_4M_NOR_FLASH_COMPONENT \
+ 8M ON_BOARD_8M_NOR_FLASH_COMPONENT \
+ 16M ON_BOARD_16M_NOR_FLASH_COMPONENT
+ "
+fi
+
+if [ "$RT5350_ASIC_BOARD" = "y" ]; then
+choice 'SPI Flash Size' "4M ON_BOARD_4M_SPI_FLASH_COMPONENT \
+ 16M ON_BOARD_16M_SPI_FLASH_COMPONENT
+ "
+fi
+
#########
# DRAM
#########
Index: include/configs/rt2880.h
===================================================================
--- include/configs/rt2880.h (revision 13)
+++ include/configs/rt2880.h (working copy)
@@ -340,7 +340,7 @@
#if defined (ON_BOARD_16M_SPI_FLASH_COMPONENT)
#define CFG_SPI_FLASH_SIZE 0x1000000
#define CFG_BOOTLOADER_SIZE 0x30000
-#define CFG_CONFIG_SIZE 0x40000
+#define CFG_CONFIG_SIZE 0x40000
#define CFG_FACTORY_SIZE 0x40000
#define CFG_IMAGE_SIZE 0x700000
#define CFG_SYSLOG_SIZE (CFG_SPI_FLASH_SIZE - (CFG_BOOTLOADER_SIZE + \
@@ -350,22 +350,25 @@
#define CFG_FACTORY_ADDR (CFG_FLASH_BASE + CFG_BOOTLOADER_SIZE + CFG_CONFIG_SIZE + CFG_IMAGE_SIZE * 2 )
#define CFG_KERN_ADDR (CFG_FLASH_BASE + CFG_BOOTLOADER_SIZE )
#define CFG_KERN2_ADDR (CFG_FLASH_BASE + CFG_BOOTLOADER_SIZE + CFG_IMAGE_SIZE)
-#define CFG_SYSLOG_ADDR (CFG_FLASH_BASE + CFG_BOOTLOADER_SIZE + CFG_CONFIG_SIZE + \
+#define CFG_SYSLOG_ADDR (CFG_FLASH_BASE + CFG_BOOTLOADER_SIZE + CFG_CONFIG_SIZE + \
CFG_FACTORY_SIZE + CFG_IMAGE_SIZE * 2)

#endif

#if defined (ON_BOARD_4M_SPI_FLASH_COMPONENT)
-#define CFG_SPI_FLASH_SIZE 0x400000
-#define CFG_BOOTLOADER_SIZE 0x30000
+#define CFG_SPI_FLASH_SIZE 0x400000
+#define CFG_BOOTLOADER_SIZE 0x30000
#define CFG_CONFIG_SIZE 0x10000
-#define CFG_FACTORY_SIZE 0x10000
-#define CFG_IMAGE_SIZE (CFG_SPI_FLASH_SIZE - (CFG_BOOTLOADER_SIZE + CFG_CONFIG_SIZE + CFG_FACTORY_SIZE))
+#define CFG_FACTORY_SIZE 0x10000
+#define CFG_IMAGE_SIZE 0x360000
+#define CFG_SYSLOG_SIZE (CFG_SPI_FLASH_SIZE - (CFG_BOOTLOADER_SIZE + CFG_CONFIG_SIZE + CFG_FACTORY_SIZE + CFG_IMAGE_SIZE))

-#define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_BOOTLOADER_SIZE)
+#define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_BOOTLOADER_SIZE)
#define CFG_FACTORY_ADDR (CFG_FLASH_BASE + CFG_BOOTLOADER_SIZE + CFG_CONFIG_SIZE)
#define CFG_KERN_ADDR (CFG_FLASH_BASE + (CFG_BOOTLOADER_SIZE + CFG_CONFIG_SIZE + CFG_FACTORY_SIZE))
-#define CFG_KERN2_ADDR CFG_KERN_ADDR
+#define CFG_KERN2_ADDR CFG_KERN_ADDR
+#define CFG_SYSLOG_ADDR (CFG_FLASH_BASE + CFG_BOOTLOADER_SIZE + CFG_CONFIG_SIZE + \
+ CFG_FACTORY_SIZE + CFG_IMAGE_SIZE)

#endif

将原项目的16Mflash映像裁剪成4M，可以对照看出所修改的地方（602项目）

主要是调整flash分区大小

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