4-Install Linux Kernel:
first download linux kernel with this command : wget http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.30.tar.bz2or this link:http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.30.tar.bz2 tar xvjf linux-2.6.30.tar.bz2 cd linux-2.6.30then download patch with: wget http://maxim.org.za/AT91RM9200/2.6/2.6.30-at91.patch.gzor this link:http://maxim.org.za/AT91RM9200/2.6/2.6.30-at91.patch.gz(You can find patch and experimental patch and my config in this link)apply patch: zcat 2.6.30-at91.patch.gz | patch -p1download experimental patch(usually for at91sam9260ek development board but also for most custom design board)with: wget ftp://www.linux4sam.org/pub/linux/2.6.xx.at91/2.6.30-at91-exp.4.tar.gzor download link:ftp://www.at91.com/pub/linux/2.6.30-at91/2.6.30-at91-exp.4.tar.gzapply it:
tar xvzf 2.6.30-at91-exp.4.tar.gz
for p in 2.6.30-at91-exp.4/*; do patch -p1 < $p ; donenow apply download fefault config(you can next time change for requirment) wget http://www.at91.com/linux4sam/pub/Linux4SAM/LinuxKernel/at91sam9260ek_defconfigdownload link: ftp://www.at91.com/pub/linux/2.6.30-at91/at91sam9260ek_defconfig cp at91sam9260ek_deconfig .configchange this files:
arch/arm/mach-at91/board-sam9260ek.c:171
.is_rmii = 0,
arch/arm/mach-at91/board-sam9260ek.c:212
.ncs_read_setup =0,
.nrd_setup= 1,
.ncs_write_setup= 0,
.nwe_setup= 1,
.ncs_read_pulse= 2,
.nrd_pulse= 2,
.ncs_write_pulse= 2,
.nwe_pulse= 2,
.read_cycle= 4,
.write_cycle= 4,
.mode= AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
.tdf_cycles= 2,
if you have ds1307 or ds1337 on your board and eeprom:for eeprom select correct name and size and page size and address type(AT24_FLAG_ADDR16 or AT24_FLAG_ADDR8)also correct base address
arch/arm/mach-at91/board-sam9260ek.c:
static struct at24_platform_data at24c128 = {
.byte_len =SZ_128K / 8,
.page_size = 64,
.flags= AT24_FLAG_ADDR16,
};
static structi2c_board_info __initdata ek_i2c_devices[] = {
{
I2C_BOARD_INFO("24c128", 0x53),//base address of eeprom
.platform_data = &at24c128,
},
{
I2C_BOARD_INFO("ds1337",0x68),
},
/* more devices can be added using expansion connectors */
};
I addition you must change config :
device drivers->I2c support->I2c hardware bus support->GPIO-based bitbanging I2C
device divers->Miscdevices->EEPROM support-> <*> I2C EEPROMs from most vendors
then: make ARCH=arm oldconfig now you can modify default config: make ARCH=arm menuconfig now compile linux kernel: make ARCH=arm CROSS_COMPILE=(use cross compile address i test with 4.2.4 and buildroot) uImageif all was true you will have uImage in arch/arm/boot/ folder.Now you must upload in board.
纵然伤心，也不要愁眉不展，因为你不知是谁会爱上你的笑容
