首页 > 代码库 > [uboot]E9-i.MX6Q-uboot移植

[uboot]E9-i.MX6Q-uboot移植

2024-08-15 18:35:41   218人阅读

 

参照：http://blog.csdn.net/girlkoo/article/details/45420977

文档参照：

  • 《i.MX BSP Porting Guide-2015/12， Rev.0》---------uboot porting steps
  • 《E9_TQIMX6Q_V1_20131031.pdf》------------------E9 schematics
  • 《E9_User_Manual-V3.1.0》---------------------------Burned methods

BSP版本：L3.14.52.1.1.0

Step1:创建单板board目录，这里选择mx6sabresd作为参考

1 $cp -R board/freescale/mx6sabresd/ board/freescale/mx6q_tqE9/

Step2:创建board配置config文件，这里面设定了dtb文件名称，Stack/Heap大小，DDR大小，zImage装载地址

1 $cp include/configs/mx6sabresd.h include/configs/mx6q_tqE9.h

Step3:<UBOOT_DIR>/configs/目录，创建config选项配置文件, 复制mx6qsabresd_defconfig --> mx6q_tqE9_defconfig, 然后修改为：

1 CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/freescale/mx6q_tqE9.cfg,MX6Q"2 CONFIG_ARM=y3 CONFIG_TARGET_MX6Q<customer_board>=y4 CONFIG_SYS_MALLOC_F=y5 CONFIG_SYS_MALLOC_F_LEN=0x4006 CONFIG_DM=y7 CONFIG_DM_THERMAL=y

Step4:文件重命名

1 board/freescale/mx6q_tqE9/mx6sabresd.c --> board/freescale/mx6q_tqE9/mx6q_tqE9.c2 board/freescale/mx6q_tqE9/mx6qp.cfg --> board/freescale/mx6q_tqE9/mx6q_tqE9.cfg

Step5: 修改board/freescale/mx6q_tqE9目录的Makefile

1 obj-y:= mx6sabresd.o --> obj-y  := mx6q_tqE9.o

Step6: 修改Kconfig

  • arch/arm/Kconfig

添加：

1 config TARGET_MX6Q_TQE92 　　bool "Support mx6q_tqE9"3 　　select CPU_V74 source "board/freescale/mx6q_tqE9/Kconfig"
  • board/freescale/mx6q_tqE9/Kconfig

修改为：

 1 if TARGET_MX6Q_TQE9 2  3 config SYS_BOARD 4     default "mx6q_tqE9" 5  6 config SYS_VENDOR 7     default "freescale" 8  9 config SYS_SOC10     default "mx6"11 12 config SYS_CONFIG_NAME13     default "mx6q_tqE9"14 15 endif

 Step7:创建编译脚本

1 #!/bin/bash2 export ARCH=arm3 export CROSS_COMPILE=/opt/Embedsky/gcc-4.6.2-glibc-2.13-linaro-multilib-2011.12/tq-linaro-toolchain/bin/arm-fsl-linux-gnueabi-4 make distclean;5 make mx6q_tqE9_defconfig6 make

Step8:参照@girlkoo：

1. 定制DDR，目录为board/freescale/mx6q_tqE9/mx6q_tqE9.cfg

 1 DATA 4, 0x020e0798, 0x000C0000   2 DATA 4, 0x020e0758, 0x00000000   3 DATA 4, 0x020e0588, 0x00000030   4 DATA 4, 0x020e0594, 0x00000030   5 DATA 4, 0x020e056c, 0x00000030   6 DATA 4, 0x020e0578, 0x00000030   7 DATA 4, 0x020e074c, 0x00000030   8 DATA 4, 0x020e057c, 0x00000030   9 DATA 4, 0x020e058c, 0x00000000  10 DATA 4, 0x020e059c, 0x00000030  11 DATA 4, 0x020e05a0, 0x00000030  12 DATA 4, 0x020e078c, 0x00000030  13 DATA 4, 0x020e0750, 0x00020000  14 DATA 4, 0x020e05a8, 0x00000018  15 DATA 4, 0x020e05b0, 0x00000018  16 DATA 4, 0x020e0524, 0x00000018  17 DATA 4, 0x020e051c, 0x00000018  18 DATA 4, 0x020e0518, 0x00000018  19 DATA 4, 0x020e050c, 0x00000018  20 DATA 4, 0x020e05b8, 0x00000018  21 DATA 4, 0x020e05c0, 0x00000018  22 DATA 4, 0x020e0774, 0x00020000  23 DATA 4, 0x020e0784, 0x00000018  24 DATA 4, 0x020e0788, 0x00000018  25 DATA 4, 0x020e0794, 0x00000018  26 DATA 4, 0x020e079c, 0x00000018  27 DATA 4, 0x020e07a0, 0x00000018  28 DATA 4, 0x020e07a4, 0x00000018  29 DATA 4, 0x020e07a8, 0x00000018  30 DATA 4, 0x020e0748, 0x00000018  31 DATA 4, 0x020e05ac, 0x00000018  32 DATA 4, 0x020e05b4, 0x00000018  33 DATA 4, 0x020e0528, 0x00000018  34 DATA 4, 0x020e0520, 0x00000018  35 DATA 4, 0x020e0514, 0x00000018  36 DATA 4, 0x020e0510, 0x00000018  37 DATA 4, 0x020e05bc, 0x00000018  38 DATA 4, 0x020e05c4, 0x00000018  39 DATA 4, 0x021b0800, 0xa1390003  40 DATA 4, 0x021b080c, 0x001F001F  41 DATA 4, 0x021b0810, 0x001F001F  42 DATA 4, 0x021b480c, 0x001F001F  43 DATA 4, 0x021b4810, 0x001F001F  44 DATA 4, 0x021b083c, 0x43270338  45 DATA 4, 0x021b0840, 0x03200314  46 DATA 4, 0x021b483c, 0x431A032F  47 DATA 4, 0x021b4840, 0x03200263  48 DATA 4, 0x021b0848, 0x4B434748  49 DATA 4, 0x021b4848, 0x4445404C  50 DATA 4, 0x021b0850, 0x38444542  51 DATA 4, 0x021b4850, 0x4935493A  52 DATA 4, 0x021b081c, 0x33333333  53 DATA 4, 0x021b0820, 0x33333333  54 DATA 4, 0x021b0824, 0x33333333  55 DATA 4, 0x021b0828, 0x33333333  56 DATA 4, 0x021b481c, 0x33333333  57 DATA 4, 0x021b4820, 0x33333333  58 DATA 4, 0x021b4824, 0x33333333  59 DATA 4, 0x021b4828, 0x33333333  60 DATA 4, 0x021b08b8, 0x00000800  61 DATA 4, 0x021b48b8, 0x00000800  62 DATA 4, 0x021b0004, 0x00020036  63 DATA 4, 0x021b0008, 0x09444040  64 DATA 4, 0x021b000c, 0x8A8F7955  65 DATA 4, 0x021b0010, 0xFF328F64  66 DATA 4, 0x021b0014, 0x01FF00DB  67 DATA 4, 0x021b0018, 0x00001740  68 DATA 4, 0x021b001c, 0x00008000  69 DATA 4, 0x021b002c, 0x000026d2  70 DATA 4, 0x021b0030, 0x008F1023  71 DATA 4, 0x021b0040, 0x00000047  72 DATA 4, 0x021b0000, 0x841A0000  73 DATA 4, 0x021b001c, 0x04088032  74 DATA 4, 0x021b001c, 0x00008033  75 DATA 4, 0x021b001c, 0x00048031  76 DATA 4, 0x021b001c, 0x09408030  77 DATA 4, 0x021b001c, 0x04008040  78 DATA 4, 0x021b0020, 0x00005800  79 DATA 4, 0x021b0818, 0x00011117  80 DATA 4, 0x021b4818, 0x00011117  81 DATA 4, 0x021b0004, 0x00025576  82 DATA 4, 0x021b0404, 0x00011006  83 DATA 4, 0x021b001c, 0x00000000  84   85 /* set the default clock gate to save power */  86 DATA 4, 0x020c4068, 0x00C03F3F  87 DATA 4, 0x020c406c, 0x0030FC03  88 DATA 4, 0x020c4070, 0x0FFFC000  89 DATA 4, 0x020c4074, 0x3FF00000  90 DATA 4, 0x020c4078, 0x00FFF300  91 DATA 4, 0x020c407c, 0x0F0000F3  92 DATA 4, 0x020c4080, 0x000003FF  93   94 /* enable AXI cache for VDOA/VPU/IPU */  95 DATA 4, 0x020e0010, 0xF00000CF  96 /* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */  97 DATA 4, 0x020e0018, 0x007F007F  98 DATA 4, 0x020e001c, 0x007F007F

2. 定制board端子，board/freescale/mx6q_tqE9/mx6q_tqE9.c

<1>.修改串口如下：

1 iomux_v3_cfg_t const uart1_pads[] = {  2         // MX6_PAD_CSI0_DAT10__UART1_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),  3         // MX6_PAD_CSI0_DAT11__UART1_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),  4         MX6_PAD_SD3_DAT7__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),  5         MX6_PAD_SD3_DAT6__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),  6 };

<2>.修改SD卡端子：

 1 iomux_v3_cfg_t const usdhc2_pads[] = {   2         MX6_PAD_SD2_CLK__USDHC2_CLK     | MUX_PAD_CTRL(USDHC_PAD_CTRL),   3         MX6_PAD_SD2_CMD__USDHC2_CMD     | MUX_PAD_CTRL(USDHC_PAD_CTRL),   4         MX6_PAD_SD2_DAT0__USDHC2_DAT0   | MUX_PAD_CTRL(USDHC_PAD_CTRL),   5         MX6_PAD_SD2_DAT1__USDHC2_DAT1   | MUX_PAD_CTRL(USDHC_PAD_CTRL),   6         MX6_PAD_SD2_DAT2__USDHC2_DAT2   | MUX_PAD_CTRL(USDHC_PAD_CTRL),   7         MX6_PAD_SD2_DAT3__USDHC2_DAT3   | MUX_PAD_CTRL(USDHC_PAD_CTRL),   8         // MX6_PAD_NANDF_D4__USDHC2_DAT4        | MUX_PAD_CTRL(USDHC_PAD_CTRL),   9         // MX6_PAD_NANDF_D5__USDHC2_DAT5        | MUX_PAD_CTRL(USDHC_PAD_CTRL),  10         // MX6_PAD_NANDF_D6__USDHC2_DAT6        | MUX_PAD_CTRL(USDHC_PAD_CTRL),  11         // MX6_PAD_NANDF_D7__USDHC2_DAT7        | MUX_PAD_CTRL(USDHC_PAD_CTRL),  12         // MX6_PAD_NANDF_D2__GPIO_2_2   | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */  13 };  14   15 iomux_v3_cfg_t const usdhc3_pads[] = {  16         MX6_PAD_SD3_CLK__USDHC3_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL),  17         MX6_PAD_SD3_CMD__USDHC3_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL),  18         MX6_PAD_SD3_DAT0__USDHC3_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),  19         MX6_PAD_SD3_DAT1__USDHC3_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),  20         MX6_PAD_SD3_DAT2__USDHC3_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),  21         MX6_PAD_SD3_DAT3__USDHC3_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),  22         MX6_PAD_SD3_DAT4__USDHC3_DAT4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),  23         MX6_PAD_SD3_DAT5__USDHC3_DAT5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),  24         // MX6_PAD_SD3_DAT6__USDHC3_DAT6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),  25         // MX6_PAD_SD3_DAT7__USDHC3_DAT7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),  26         MX6_PAD_NANDF_D0__GPIO_2_0    | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */  27 };

<3>.定制Card Detect端子，否则SD卡插入会检测不到

1 #define USDHC2_CD_GPIO  IMX_GPIO_NR(1, 4)

Step9: 编译

1 ./build_uboot.sh 

Step10: 烧写，下载：

烧写SD卡：

sudo dd if=u-boot.imx of=/dev/sdc bs=512 seek=2 

更改E9为SD卡启动：

Jumper为1~7: 1 0 0 0 0 0 1.

输出log:

 1 U-Boot 2015.04-imx_v2015.04_3.14.52_1.1.0_ga+g6cf684a (Oct 05 2016 - 23:57:59) 2  3 CPU: Freescale i.MX6Q rev1.2 at 792 MHz 4 CPU: Temperature -140462619 C 5 Reset cause: POR 6 Board: MX6-TQE9 7 I2C: ready 8 DRAM: 2 GiB 9 Can‘t find PMIC:PFUZE10010 initcall sequence 8ff93570 failed at call 178036e8 (err=-19)11 ### ERROR ### Please RESET the board ###

Issue: 这里遇到一个问题就是串口管脚的修改，E9的管脚UART1_TXD(SD3_DAT7)和UART1_RXD(SD3_DAT6)，所以需要修改，而原有在sabresd板子中配置为MX6_PAD_CSI0_DAT10__UART1_TX_DATA和MX6_PAD_CSI0_DAT11__UART1_RX_DATA，使用grep并找不到定义，所以也就找不到此版本下SD3_DAT7和SD3_DAT6应该怎么表示，刚开始修改不对，uboot打印一直不出现。

后来通过mx6q_tqE9.c包含头文件找到arch/arm/include/asm/arch-mx6/mx6q_pins.h:851:

1 MX6_PAD_DECL(SD3_DAT7__UART1_TX_DATA, 0x0690, 0x02A8, 1, 0x0000, 0, 0)

而在arch/arm/include/asm/arch-mx6/mx6-pins.h中有这样定义：

1 #elif defined(CONFIG_MX6Q)2 enum {3 #define MX6_PAD_DECL(name, pco, mc, mm, sio, si, pc) 4 MX6_PAD_DECLARE(MX6_PAD_,name, pco, mc, mm, sio, si, pc),5 #include "mx6q_pins.h"6 };

进而有同样在arch/arm/include/asm/arch-mx6/mx6-pins.h： 

1 #define MX6_PAD_DECLARE(prefix, name, pco, mc, mm, sio, si, pc) 2     prefix##name = IOMUX_PAD(pco, mc, mm, sio, si, pc) 

这样也就有了串口MX6_PAD_SD3_DAT7__UART1_TX_DATA的定义。

  

问题：

1. SD卡格式化

mkfs.ext4 /dev/sdc

2. 格式化完后分区

3. 以上的编译使用的工具链还是较老的工具链，E9光盘安装，并没有更新

[uboot]E9-i.MX6Q-uboot移植


联系
我们