1U-Boot for UniPhier SoC family 2============================== 3 4 5Tested toolchains 6----------------- 7 8 (a) Ubuntu packages (CROSS_COMPILE=arm-linux-gnueabi-) 9 10 If you are building U-Boot on Ubuntu, its standard package is recommended. 11 You can install it as follows: 12 13 $ sudo apt-get install gcc-arm-linux-gnueabi- 14 15 (b) Linaro compilers (CROSS_COMPILE=arm-linux-gnueabihf-) 16 17 You can download pre-built toolchains from: 18 19 http://www.linaro.org/downloads/ 20 21 (c) kernel.org compilers (CROSS_COMPILE=arm-unknown-linux-gnueabi-) 22 23 You can download pre-built toolchains from: 24 25 ftp://www.kernel.org/pub/tools/crosstool/files/bin/ 26 27 28Compile the source 29------------------ 30 31PH1-sLD3 reference board: 32 $ make uniphier_sld3_defconfig 33 $ make CROSS_COMPILE=arm-linux-gnueabi- 34 35PH1-LD4 reference board: 36 $ make uniphier_ld4_sld8_defconfig 37 $ make CROSS_COMPILE=arm-linux-gnueabi- 38 39PH1-sLD8 reference board: 40 $ make uniphier_ld4_sld8_defconfig 41 $ make CROSS_COMPILE=arm-linux-gnueabi- DEVICE_TREE=uniphier-ph1-sld8-ref 42 43PH1-Pro4 reference board: 44 $ make uniphier_pro4_defconfig 45 $ make CROSS_COMPILE=arm-linux-gnueabi- 46 47PH1-Pro5 4KBOX Board: 48 $ make uniphier_pro5_defconfig 49 $ make CROSS_COMPILE=arm-linux-gnueabi- 50 51ProXstream2 Gentil board: 52 $ make uniphier_pxs2_ld6b_defconfig 53 $ make CROSS_COMPILE=arm-linux-gnueabi- DEVICE_TREE=uniphier-proxstream2-gentil 54 55ProXstream2 Vodka board: 56 $ make uniphier_pxs2_ld6b_defconfig 57 $ make CROSS_COMPILE=arm-linux-gnueabi- 58 59PH1-LD6b reference board: 60 $ make uniphier_pxs2_ld6b_defconfig 61 $ make CROSS_COMPILE=arm-linux-gnueabi- DEVICE_TREE=uniphier-ph1-ld6b-ref 62 63You may wish to change the "CROSS_COMPILE=arm-linux-gnueabi-" 64to use your favorite compiler. 65 66 67Burn U-Boot images to NAND 68-------------------------- 69 70Write two files to the NAND device as follows: 71 - spl/u-boot-spl.bin at the offset address 0x00000000 72 - u-boot.img at the offset address 0x00010000 73 74If a TFTP server is available, the images can be easily updated. 75Just copy the u-boot-spl-dtb.bin and u-boot-dtb.img to the TFTP public 76directory, and then run the following command at the U-Boot command line: 77 78 => run nandupdate 79 80 81UniPhier specific commands 82-------------------------- 83 84 - pinmon (enabled by CONFIG_CMD_PINMON) 85 shows the boot mode pins that has been latched at the power-on reset 86 87 - ddrphy (enabled by CONFIG_CMD_DDRPHY_DUMP) 88 shows the DDR PHY parameters set by the PHY training 89 90 91Supported devices 92----------------- 93 94 - UART (on-chip) 95 - NAND 96 - USB 2.0 (EHCI) 97 - USB 3.0 (xHCI) 98 - LAN (on-board SMSC9118) 99 - I2C 100 - EEPROM (connected to the on-board I2C bus) 101 - Support card (SRAM, NOR flash, some peripherals) 102 103 104Micro Support Card 105------------------ 106 107The recommended bit switch settings are as follows: 108 109 SW2 OFF(1)/ON(0) Description 110 ------------------------------------------ 111 bit 1 <---- BKSZ[0] 112 bit 2 ----> BKSZ[1] 113 bit 3 <---- SoC Bus Width 16/32 114 bit 4 <---- SERIAL_SEL[0] 115 bit 5 ----> SERIAL_SEL[1] 116 bit 6 ----> BOOTSWAP_EN 117 bit 7 <---- CS1/CS5 118 bit 8 <---- SOC_SERIAL_DISABLE 119 120 SW8 OFF(1)/ON(0) Description 121 ------------------------------------------ 122 bit 1 <---- CS1_SPLIT 123 bit 2 <---- CASE9_ON 124 bit 3 <---- CASE10_ON 125 bit 4 Don't Care Reserve 126 bit 5 Don't Care Reserve 127 bit 6 Don't Care Reserve 128 bit 7 ----> BURST_EN 129 bit 8 ----> FLASHBUS32_16 130 131The BKSZ[1:0] specifies the address range of memory slot and peripherals 132as follows: 133 134 BKSZ Description RAM slot Peripherals 135 -------------------------------------------------------------------- 136 0b00 15MB RAM / 1MB Peri 00000000-00efffff 00f00000-00ffffff 137 0b01 31MB RAM / 1MB Peri 00000000-01efffff 01f00000-01ffffff 138 0b10 64MB RAM / 1MB Peri 00000000-03efffff 03f00000-03ffffff 139 0b11 127MB RAM / 1MB Peri 00000000-07efffff 07f00000-07ffffff 140 141Set BSKZ[1:0] to 0b01 for U-Boot. 142This mode is the most handy because EA[24] is always supported by the save pin 143mode of the system bus. On the other hand, EA[25] is not supported for some 144newer SoCs. Even if it is, EA[25] is not connected on most of the boards. 145 146-- 147Masahiro Yamada <yamada.masahiro@socionext.com> 148Feb. 2016 149