xref: /openbmc/u-boot/doc/README.uniphier (revision 95de1e2f)
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:
32    $ make ph1_sld3_defconfig
33    $ make CROSS_COMPILE=arm-linux-gnueabi-
34
35PH1-LD4:
36    $ make ph1_ld4_defconfig
37    $ make CROSS_COMPILE=arm-linux-gnueabi-
38
39PH1-Pro4:
40    $ make ph1_pro4_defconfig
41    $ make CROSS_COMPILE=arm-linux-gnueabi-
42
43PH1-sLD8:
44    $ make ph1_sld8_defconfig
45    $ make CROSS_COMPILE=arm-linux-gnueabi-
46
47You may wish to change the "CROSS_COMPILE=arm-linux-gnueabi-"
48to use your favorite compiler.
49
50
51Burn U-Boot images to NAND
52--------------------------
53
54Write two files to the NAND device as follows:
55 - spl/u-boot-spl.bin at the offset address 0x00000000
56 - u-boot-dtb.img     at the offset address 0x00010000
57
58If a TFTP server is available, the images can be easily updated.
59Just copy the u-boot-spl.bin and u-boot-dtb.img to the TFTP public directory,
60and then run the following command at the U-Boot command line:
61
62  => run nandupdate
63
64
65UniPhier specific commands
66--------------------------
67
68 - pinmon (enabled by CONFIG_CMD_PINMON)
69     shows the boot mode pins that has been latched at the power-on reset
70
71 - ddrphy (enabled by CONFIG_CMD_DDRPHY_DUMP)
72     shows the DDR PHY parameters set by the PHY training
73
74
75Supported devices
76-----------------
77
78 - UART (on-chip)
79 - NAND
80 - USB 2.0 (EHCI)
81 - USB 3.0 (xHCI)
82 - LAN (on-board SMSC9118)
83 - I2C
84 - EEPROM (connected to the on-board I2C bus)
85 - Support card (SRAM, NOR flash, some peripherals)
86
87
88Micro Support Card
89------------------
90
91The recommended bit switch settings are as follows:
92
93 SW2    OFF(1)/ON(0)   Description
94 ------------------------------------------
95 bit 1   <----         BKSZ[0]
96 bit 2   ---->         BKSZ[1]
97 bit 3   <----         SoC Bus Width 16/32
98 bit 4   <----         SERIAL_SEL[0]
99 bit 5   ---->         SERIAL_SEL[1]
100 bit 6   ---->         BOOTSWAP_EN
101 bit 7   <----         CS1/CS5
102 bit 8   <----         SOC_SERIAL_DISABLE
103
104 SW8    OFF(1)/ON(0)   Description
105 ------------------------------------------
106 bit 1    ---->        CS1_SPLIT
107 bit 2    <----        CASE9_ON
108 bit 3    <----        CASE10_ON
109 bit 4  Don't Care     Reserve
110 bit 5  Don't Care     Reserve
111 bit 6  Don't Care     Reserve
112 bit 7    ---->        BURST_EN
113 bit 8    ---->        FLASHBUS32_16
114
115The BKSZ[1:0] specifies the address range of memory slot and peripherals
116as follows:
117
118 BKSZ    Description              RAM slot            Peripherals
119 --------------------------------------------------------------------
120 0b00   15MB RAM / 1MB Peri    00000000-0effffff    0f000000-0fffffff
121 0b01   31MB RAM / 1MB Peri    00000000-1effffff    1f000000-1fffffff
122 0b10   64MB RAM / 1MB Peri    00000000-3effffff    3f000000-3fffffff
123 0b11  127MB RAM / 1MB Peri    00000000-7effffff    7f000000-7fffffff
124
125Set BSKZ[1:0] to 0b01 for U-Boot.
126This mode is the most handy because EA[24] is always supported by the save pin
127mode of the system bus.  On the other hand, EA[25] is not supported for some
128newer SoCs.  Even if it is, EA[25] is not connected on most of the boards.
129
130--
131Masahiro Yamada <yamada.masahiro@socionext.com>
132Jul. 2015
133