At first, please read i.MX_Android_R10.3_User_Guide.html and i.MX_Android_R10.3.1_User_Guide.html for environment setting.
1. Modify the following file in u-boot
In include/configs/mx53_smd_android.h
-#define CONFIG_FSL_ENV_IN_MMC
+#define CONFIG_FSL_ENV_IN_SATA
+#elif defined(CONFIG_FSL_ENV_IN_SATA)
+ #define CONFIG_ENV_IS_IN_SATA 1
+ #define CONFIG_SATA_ENV_DEV 0
+ #define CONFIG_ENV_OFFSET (768 * 1024)
2.Modify the following file Kernel
In kernel-imx/arch/arm/configs/imx5_android_defconfig
CONFIG_ATA=y
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_SATA_AHCI_PLATFORM=y
CONFIG_ATA_SFF=y
Make sure # CONFIG_SATA_PMP is not set in .config (It’s very important). If you use make menuconfig, CONFIG_SATA_PMP is set to y defaultly.
3. Modiy Android code
In device/fsl/imx53_smd/init.rc
- mount ext4 /dev/block/mmcblk0p2 /system
- mount ext4 /dev/block/mmcblk0p2 /system ro remount
- mount ext4 /dev/block/mmcblk0p5 /data nosuid nodev
- mount ext4 /dev/block/mmcblk0p6 /cache nosuid nodev
+ mount ext4 /dev/block/sda2 /system
+ mount ext4 /dev/block/sda2 /system ro remount
+ mount ext4 /dev/block/sda5 /data nosuid nodev
+ mount ext4 /dev/block/sda6 /cache nosuid nodev
4. MFG tool
Copy all android relative image files to "files/android"
select right configuration.
5. Blown FUSE before burning new image to SATA device
To boot from SATA with internal clock(using 120Mhz USB_PHY_CLK), ensure “SATA_ALT_CLK_REF”(The bit 1 and bit 2 of Bank 4,row 3 in FUSE map) is blown.SATA_ALT_CLK_REF is used to decide SATA PHY source clock and frequency select. SATA_ALT_CLK_REF define as
'00' - 100MHz (External)
'01' - 50MHz (External)
'10' - 120MHz, internal (USB PHY)
'11' - Reserved.
The following U-Boot command can blown fuse for internal clock:
$ iim blow 4 3 4
Usage of command "iim blow" is "iim blow Bank-number Row-number Blown-value "
6. Boot dip settings for SATA boot
SW26: dip 4, 6 are on. Others are off. Please refer to \Profiles\MX53 Linux Update\OS Firmware\ucl.xml of MFG tool for detailed information.
7. Set u-boot parameter before boot kernel
$ setenv ethaddr 00:04:9f:00:ea:d3
$ setenv fec_addr 00:04:9f:00:ea:d3
$ setenv loadaddr 0x70800000
$ setenv rd_loadaddr 0x70D00000
$ setenv bootcmd 'run bootcmd_sata; bootm ${loadaddr} ${rd_loadaddr}'
$ setenv bootcmd_sata 'sata read ${loadaddr} 0x800 0x2000; sata read ${rd_loadaddr} 0x3000 0x300;'
$ setenv bootargs console=ttymxc0 init=/init androidboot.console=ttymxc0 video=mxcdi1fb:RGB666,XGA ldb=di1 di1_primary ip=dhcp gpu_nommu, gpu_memory=64M
$ saveenv
8. Bootup Android
We can see Android bootup and done.
