SH7706ボードの後継版であるT-SAM9260ボードに対応した Linux-2.6.31 カーネルの差分を作成しました。

カーネル差分は linux-2.6.31-t-sam9260-1.patchです。
Linuxカーネル本体のソースアーカイブは linux-2.6.31.tar.xzです。

Linuxカーネル本体のソースアーカイブを展開して、差分パッチファイルを配置したあとにフォルダ内に入り、パッチファイルを当ててから、設定を読込・保存してから、カーネル構築をします。

現段階では、SDカードのドライバが認識しないため、ルートファイルシステムでの起動に至っていません。

ARM926EJ-SでのLInux2.6.31のブート画面は以下のとおりです。

Linux version 2.6.31 (general@B650) (gcc version 4.3.3 (Sourcery G++ Lite 2009q5
CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=00053177
CPU: VIVT data cache, VIVT instruction cache
Machine: TAC T-SAM9260
Memory policy: ECC disabled, Data cache writeback
Clocks: PLLA overclocked, 210 MHz
Clocks: CPU 210 MHz, master 105 MHz, main 12.000 MHz
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 8128
Kernel command line: console=ttyS0,115200
PID hash table entries: 128 (order: 7, 512 bytes)
Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
Memory: 32MB = 32MB total
Memory: 27584KB available (2788K code, 196K data, 112K init, 0K highmem)
Hierarchical RCU implementation.
NR_IRQS:192
AT91: 96 gpio irqs in 3 banks
Console: colour dummy device 80×30
console [ttyS0] enabled
Calibrating delay loop… 104.65 BogoMIPS (lpj=523264)
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
NET: Registered protocol family 16
bio: create slab <bio-0> at 0
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 1024 (order: 1, 8192 bytes)
TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
TCP: Hash tables configured (established 1024 bind 1024)
TCP reno registered
NET: Registered protocol family 1
Trying to unpack rootfs image as initramfs…
rootfs image is not initramfs (no cpio magic); looks like an initrd
Freeing initrd memory: 1752K
NetWinder Floating Point Emulator V0.97 (double precision)
NTFS driver 2.1.29 [Flags: R/W DEBUG].
msgmni has been set to 57
io scheduler noop registered
io scheduler anticipatory registered (default)
atmel_usart.0: ttyS0 at MMIO 0xfefff200 (irq = 1) is a ATMEL_SERIAL
atmel_usart.1: ttyS1 at MMIO 0xfffb0000 (irq = 6) is a ATMEL_SERIAL
atmel_usart.2: ttyS2 at MMIO 0xfffb4000 (irq = 7) is a ATMEL_SERIAL
brd: module loaded
loop: module loaded
MACB_mii_bus: probed
eth0: Atmel MACB at 0xfffc4000 irq 21 (00:18:5f:00:00:34)
eth0: attached PHY driver [Generic PHY] (mii_bus:phy_addr=ffffffff:01, irq=-1)
usbmon: debugfs is not available
ohci_hcd: USB 1.1 ‘Open’ Host Controller (OHCI) Driver
at91_ohci at91_ohci: AT91 OHCI
at91_ohci at91_ohci: new USB bus registered, assigned bus number 1
at91_ohci at91_ohci: irq 20, io mem 0x00500000
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
Initializing USB Mass Storage driver…
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
udc: at91_udc version 3 May 2006
mice: PS/2 mouse device common for all mice
rtc-at91sam9 at91_rtt.0: rtc core: registered at91_rtt as rtc0
IRQ 1/rtc0: IRQF_DISABLED is not guaranteed on shared IRQs
rtc-at91sam9 at91_rtt.0: rtc0: SET TIME!
AT91SAM9 Watchdog: sorry, watchdog is disabled
at91_wdt: probe of at91_wdt failed with error -5
sdhci: Secure Digital Host Controller Interface driver
sdhci: Copyright(c) Pierre Ossman
TCP cubic registered
NET: Registered protocol family 17
rtc-at91sam9 at91_rtt.0: hctosys: unable to read the hardware clock
RAMDISK: gzip image found at block 0
VFS: Mounted root (ext2 filesystem) on device 1:0.
VFS: Cannot open root device “<NULL>” or unknown-block(0,0)
Please append a correct “root=” boot option; here are the available partitions:
Kernel panic – not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
Backtrace:

ファイルシステムが認識できないため、現段階ではカーネルパニックになっています。