| U-Boot for UniPhier SoC family |
| ============================== |
| |
| |
| Recommended toolchains |
| ---------------------- |
| |
| The UniPhier platform is well tested with Linaro toolchains. |
| You can download pre-built toolchains from: |
| |
| http://www.linaro.org/downloads/ |
| |
| |
| Compile the source |
| ------------------ |
| |
| The source can be configured and built with the following commands: |
| |
| $ make <defconfig> |
| $ make CROSS_COMPILE=<toolchain-prefix> DEVICE_TREE=<device-tree> |
| |
| The recommended <toolchain-prefix> is `arm-linux-gnueabihf-` for 32bit SoCs, |
| `aarch64-linux-gnu-` for 64bit SoCs, but you may wish to change it to use your |
| favorite compiler. |
| |
| The following tables show <defconfig> and <device-tree> for each board. |
| |
| 32bit SoC boards: |
| |
| Board | <defconfig> | <device-tree> |
| ---------------|------------------------------|------------------------------ |
| LD4 reference | uniphier_ld4_sld8_defconfig | uniphier-ld4-ref (default) |
| sld8 reference | uniphier_ld4_sld8_defconfig | uniphier-sld8-def |
| Pro4 reference | uniphier_pro4_defconfig | uniphier-pro4-ref (default) |
| Pro4 Ace | uniphier_pro4_defconfig | uniphier-pro4-ace |
| Pro4 Sanji | uniphier_pro4_defconfig | uniphier-pro4-sanji |
| Pro5 4KBOX | uniphier_pxs2_ld6b_defconfig | uniphier-pro5-4kbox |
| PXs2 Gentil | uniphier_pxs2_ld6b_defconfig | uniphier-pxs2-gentil |
| PXs2 Vodka | uniphier_pxs2_ld6b_defconfig | uniphier-pxs2-vodka (default) |
| LD6b reference | uniphier_pxs2_ld6b_defconfig | uniphier-ld6b-ref |
| |
| 64bit SoC boards: |
| |
| Board | <defconfig> | <device-tree> |
| ---------------|-----------------------|---------------------------- |
| LD11 reference | uniphier_v8_defconfig | uniphier-ld11-ref |
| LD11 Global | uniphier_v8_defconfig | uniphier-ld11-global |
| LD20 reference | uniphier_v8_defconfig | uniphier-ld20-ref (default) |
| LD20 Global | uniphier_v8_defconfig | uniphier-ld20-global |
| |
| For example, to compile the source for PXs2 Vodka board, run the following: |
| |
| $ make uniphier_pxs2_ld6b_defconfig |
| $ make CROSS_COMPILE=arm-linux-gnueabihf- DEVICE_TREE=uniphier-pxs2-vodka |
| |
| The device tree marked as (default) can be omitted. `uniphier-pxs2-vodka` is |
| the default device tree for the configuration `uniphier_pxs2_ld6b_defconfig`, |
| so the following gives the same result. |
| |
| $ make uniphier_pxs2_ld6b_defconfig |
| $ make CROSS_COMPILE=arm-linux-gnueabihf- |
| |
| |
| Booting 32bit SoC boards |
| ------------------------ |
| |
| The build command will generate the following: |
| - u-boot.bin |
| - spl/u-boot.bin |
| |
| U-Boot can boot UniPhier 32bit SoC boards by itself. Flash the generated images |
| to the storage device (NAND or eMMC) on your board. |
| |
| - spl/u-boot-spl.bin at the offset address 0x00000000 |
| - u-boot.bin at the offset address 0x00020000 |
| |
| The `u-boot-with-spl.bin` is the concatenation of the two (with appropriate |
| padding), so you can also do: |
| |
| - u-boot-with-spl.bin at the offset address 0x00000000 |
| |
| If a TFTP server is available, the images can be easily updated. |
| Just copy the u-boot-spl.bin and u-boot.bin to the TFTP public directory, |
| and run the following command at the U-Boot command line: |
| |
| To update the images in NAND: |
| |
| => run nandupdate |
| |
| To update the images in eMMC: |
| |
| => run emmcupdate |
| |
| |
| Booting 64bit SoC boards |
| ------------------------ |
| |
| The build command will generate the following: |
| - u-boot.bin |
| |
| However, U-Boot is not the first stage loader for UniPhier 64bit SoC boards. |
| U-Boot serves as a non-secure boot loader loaded by [ARM Trusted Firmware], |
| so you need to provide the `u-boot.bin` to the build command of ARM Trusted |
| Firmware. |
| |
| [ARM Trusted Firmware]: https://github.com/ARM-software/arm-trusted-firmware |
| |
| |
| UniPhier specific commands |
| -------------------------- |
| |
| - pinmon (enabled by CONFIG_CMD_PINMON) |
| shows the boot mode pins that has been latched at the power-on reset |
| |
| - ddrphy (enabled by CONFIG_CMD_DDRPHY_DUMP) |
| shows the DDR PHY parameters set by the PHY training |
| |
| - ddrmphy (enabled by CONFIG_CMD_DDRMPHY_DUMP) |
| shows the DDR Multi PHY parameters set by the PHY training |
| |
| |
| Supported devices |
| ----------------- |
| |
| - UART (on-chip) |
| - NAND |
| - SD/eMMC |
| - USB 2.0 (EHCI) |
| - USB 3.0 (xHCI) |
| - GPIO |
| - LAN (on-board SMSC9118) |
| - I2C |
| - EEPROM (connected to the on-board I2C bus) |
| - Support card (SRAM, NOR flash, some peripherals) |
| |
| |
| Micro Support Card |
| ------------------ |
| |
| The recommended bit switch settings are as follows: |
| |
| SW2 OFF(1)/ON(0) Description |
| ------------------------------------------ |
| bit 1 <---- BKSZ[0] |
| bit 2 ----> BKSZ[1] |
| bit 3 <---- SoC Bus Width 16/32 |
| bit 4 <---- SERIAL_SEL[0] |
| bit 5 ----> SERIAL_SEL[1] |
| bit 6 ----> BOOTSWAP_EN |
| bit 7 <---- CS1/CS5 |
| bit 8 <---- SOC_SERIAL_DISABLE |
| |
| SW8 OFF(1)/ON(0) Description |
| ------------------------------------------ |
| bit 1 <---- CS1_SPLIT |
| bit 2 <---- CASE9_ON |
| bit 3 <---- CASE10_ON |
| bit 4 Don't Care Reserve |
| bit 5 Don't Care Reserve |
| bit 6 Don't Care Reserve |
| bit 7 ----> BURST_EN |
| bit 8 ----> FLASHBUS32_16 |
| |
| The BKSZ[1:0] specifies the address range of memory slot and peripherals |
| as follows: |
| |
| BKSZ Description RAM slot Peripherals |
| -------------------------------------------------------------------- |
| 0b00 15MB RAM / 1MB Peri 00000000-00efffff 00f00000-00ffffff |
| 0b01 31MB RAM / 1MB Peri 00000000-01efffff 01f00000-01ffffff |
| 0b10 64MB RAM / 1MB Peri 00000000-03efffff 03f00000-03ffffff |
| 0b11 127MB RAM / 1MB Peri 00000000-07efffff 07f00000-07ffffff |
| |
| Set BSKZ[1:0] to 0b01 for U-Boot. |
| This mode is the most handy because EA[24] is always supported by the save pin |
| mode of the system bus. On the other hand, EA[25] is not supported for some |
| newer SoCs. Even if it is, EA[25] is not connected on most of the boards. |
| |
| -- |
| Masahiro Yamada <yamada.masahiro@socionext.com> |
| Jul. 2017 |