#uboot4.19移植修分享-20200529

z2500abc · 发表于 2020-5-29 23:49:51

说明：
按照原子4.15版本步骤进行的，过程大部分与4.15类似，只有部分不一样

1、在configs文件夹下找到 mx6ull_14x14_evk_emmc_defconfig文件，使用 cp mx6ull_14x14_evk_emmc_defconfig  mx6ull_14x14_emmc_defconfig，复制完成后打开mx6ull_14x14_emmc_defconfig，如下

CONFIG_ARM=y

CONFIG_ARCH_MX6=y

CONFIG_TARGET_MX6ULL_14X14_EVK=y

CONFIG_NR_DRAM_BANKS=1

CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/freescale/mx6ullevk/imximage.cfg"

CONFIG_SUPPORT_RAW_INITRD=y

CONFIG_BOUNCE_BUFFER=y

CONFIG_VIDEO=y

CONFIG_BOOTDELAY=3

CONFIG_BOARD_EARLY_INIT_F=y

更改下第3行和第4行，改完后如下

CONFIG_ARM=y

CONFIG_ARCH_MX6=y

CONFIG_TARGET_MX6ULL_14X14_EMMC=y

CONFIG_NR_DRAM_BANKS=1

CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/freescale/mx6ull_14x14_emmc/imximage.cfg"

CONFIG_SUPPORT_RAW_INITRD=y

CONFIG_BOUNCE_BUFFER=y

CONFIG_VIDEO=y

CONFIG_BOOTDELAY=3

CONFIG_BOARD_EARLY_INIT_F=y

2、找到uboot根目录下的include/configs，在此路径找到mx6ullevk.h 将此文件复制并且重命名为 mx6ull_14x14_emmc.h  （cp mx6ullevk.h  mx6ull_14x14_emmc.h）,随后将此文件打开，并进行更改第8,9行,改完如下。

8  #ifndef__MX6ULL_14x14_EMMC_CONFIG_H

9  #define__MX6ULL_14x14_EMMC_CONFIG_H

3、在uboot的根目录下，进入board/freescale ，并将mx6ullevk文件夹内容全部复制，重命名为mx6ull_14x14_emmc，进入此文件夹，进行下面几步操作：

a、将mx6ullevk.c文件改名为 mx6ull_14x14_emmc.c，

b、打开Makefile 将其改为 obj-y := mx6ull_14x14_emmc.o

c、打开Kconfig  将其更改为：

if TARGET_MX6ULL_14X14_EMMC

config SYS_BOARD

      default"mx6ull_14x14_emmc"

config SYS_VENDOR

      default"freescale"

config SYS_CONFIG_NAME

      default"mx6ull_14x14_emmc"

config SYS_TEXT_BASE

      default0x87800000

endif

d、打开MAINTAINERS 将其更改为：

MX6ULL_14x14_EMMC  BOARD

M: PengFan <peng.fan@nxp.com>

S:    Maintained

F:    board/freescale/mx6ull_14x14_emmc/

F:    include/configs/mx6ull_14x14_emmc.h

F:    configs/mx6ull_14x14_emmc_defconfig

F:    configs/mx6ull_14x14_evk_plugin_defconfig

e、打开imximage.cfg将第34行更改为：

34  PLUGIN board/freescale/mx6ull_14x14_emmc/plugin.bin0x00907000

4、在uboot根目录下的Makefile 中添加 ARCH = arm , CROSS_COMPILE = arm-linux-gnueabihf-

5、打开/arch/arm/mach-imx/mx6 目录，在Kconfig文件中添加如下：

config TARGET_MX6ULL_14X14_EMMC

      bool"Support mx6ull_14x14_emmc"

      selectBOARD_LATE_INIT

      selectDM

      selectDM_THERMAL

      selectMX6ULL

      implyCMD_DM

source"board/freescale/mx6ull_14x14_emmc/Kconfig"

6、先使用make mx6ull_14x14_emmc_defconfig ，再使用make –j32进行编译（注意：在此过程中，可能会报错，原因是因为缺少BISON和）在编译前，先使用make distclean进行清除再进行编译。

编译完后使用 grep –nR “mx6ull_14x14_emmc.h”查看是包括了此文件

第二篇：LCD相关参数与网络驱动更改

1、 LCD参数修改

在 uboot目录下打开 /board/freescale/mx6ull_14x14_emmc

修改mx6ull_14x14_emmc.c文件（根据自己LCD显示屏的实际参数修改）以下是我的屏幕参数

struct display_info_t const displays[] = {{

      .bus= MX6UL_LCDIF1_BASE_ADDR,

      .addr= 0,

      .pixfmt= 24,

      .detect= NULL,

      .enable = do_enable_parallel_lcd,

      .mode    = {

               .name                      = "ATK4384",

               .xres          = 800,

               .yres          = 480,

               .pixclock    = 32265,

               .left_margin = 88,

               .right_margin = 40,

               .upper_margin = 32,

               .lower_margin = 13,

               .hsync_len    = 48,

               .vsync_len    = 3,

               .sync          = 0,

               .vmode       = FB_VMODE_NONINTERLACED

} } };

重启板子

-Boot 2019.04 (May 28 2020 - 22:54:19+0800)

CPU:  Freescale i.MX6ULL rev1.1 792 MHz (running at 396 MHz)

CPU:  Industrial temperature grade (-40C to 105C) at 48C

Reset cause: POR

Model: Freescale i.MX6 ULL 14x14 EVK Board

Board: MX6ULL 14x14 EVK

DRAM: 512 MiB

MMC:  FSL_SDHC: 0, FSL_SDHC: 1

Loading Environment from MMC... OK

unsupported panel TFT43AB

In: serial

Out:  serial

Err:  serial

switch to partitions #0, OK

mmc0 is current device

flash target is MMC:0

Net:  Could not get PHY for FEC1: addr 1

Could not get PHY for FEC1: addr 1

eth-1: ethernet@020b4000, eth0:ethernet@02188000

Fastboot: Normal

Normal Boot

Hit any key to stop autoboot:  0

使用uboot指令查看panel的值

=> printenv panel

panel=TFT43AB

现将panel的值设置为与我们程序中改的一样ATK4384 保存并重启

=> setenv panel ATK4384

=> saveenv

Saving Environment to MMC... Writing toMMC(0)... OK

=>reset

U-Boot 2019.04 (May 28 2020 - 23:02:04+0800)

CPU:  Freescale i.MX6ULL rev1.1 792 MHz (running at 396 MHz)

CPU:  Industrial temperature grade (-40C to 105C) at 51C

Reset cause: POR

Model: Freescale i.MX6 ULL 14x14 EVK Board

Board: MX6ULL 14x14 EVK

DRAM: 512 MiB

MMC:  FSL_SDHC: 0, FSL_SDHC: 1

Loading Environment from MMC... OK

Display: ATK4384 (800x480)

Video: 800x480x24

In: serial

Out:  serial

Err:  serial

switch to partitions #0, OK

mmc0 is current device

flash target is MMC:0

Net:  Could not get PHY for FEC1: addr 1

Could not get PHY for FEC1: addr 1

eth-1: ethernet@020b4000, eth0:ethernet@02188000

Fastboot: Normal

Normal Boot

Hit any key to stop autoboot:  0

=>

这时候屏幕启动正常了。

2、网络驱动

首先修改mx6ull_14x14_emmc.h文件，如下所示：

#ifndef __MX6ULL_14x14_EMMC_CONFIG_H

#define __MX6ULL_14x14_EMMC_CONFIG_H

#include <asm/arch/imx-regs.h>

#include <linux/sizes.h>

#include "mx6_common.h"

#include <asm/mach-imx/gpio.h>

#include "imx_env.h"

#define CONFIG_PHY_SMSC

#ifdef CONFIG_SECURE_BOOT

#ifndef CONFIG_CSF_SIZE

#define CONFIG_CSF_SIZE 0x4000

#endif

#endif

。。。

#ifdef CONFIG_FEC_MXC

#define CONFIG_CMD_MII

#define CONFIG_FEC_ENET_DEV          1

#if (CONFIG_FEC_ENET_DEV == 0)

#define IMX_FEC_BASE                ENET_BASE_ADDR

#define CONFIG_FEC_MXC_PHYADDR       0x0

#define CONFIG_FEC_XCV_TYPE          RMII

#define CONFIG_ETHPRIME                   "eth0"

#elif (CONFIG_FEC_ENET_DEV == 1)

#define IMX_FEC_BASE                ENET2_BASE_ADDR

#define CONFIG_FEC_MXC_PHYADDR          0x1

#define CONFIG_FEC_XCV_TYPE          RMII

#define CONFIG_ETHPRIME                   "eth1"

#endif

再修改mx6ull_14x14_emmc文件夹下的mx6ull_14x14_emmc.c文件，如下所示

//net_configs

#define ENET_CLK_PAD_CTRL(PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)

#define ENET_PAD_CTRL    (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE    | \

                        PAD_CTL_SPEED_HIGH  | PAD_CTL_DSE_48ohm | \

                        PAD_CTL_SRE_FAST)

#define MDIO_PAD_CTRL    (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE    | \

                        PAD_CTL_DSE_48ohm | PAD_CTL_SRE_FAST | \

                        PAD_CTL_ODE)

#define ENET1_RESET    IMX_GPIO_NR(5, 7)

#define ENET2_RESET    IMX_GPIO_NR(5, 8)

static iomux_v3_cfg_t const fec1_pads[] = {

      MX6_PAD_GPIO1_IO06__ENET1_MDIO| MUX_PAD_CTRL(MDIO_PAD_CTRL),

      MX6_PAD_GPIO1_IO07__ENET1_MDC| MUX_PAD_CTRL(ENET_PAD_CTRL),

      MX6_PAD_ENET1_TX_DATA0__ENET1_TDATA00| MUX_PAD_CTRL(ENET_PAD_CTRL),

      MX6_PAD_ENET1_TX_DATA1__ENET1_TDATA01| MUX_PAD_CTRL(ENET_PAD_CTRL),

      MX6_PAD_ENET1_TX_EN__ENET1_TX_EN| MUX_PAD_CTRL(ENET_PAD_CTRL),

      MX6_PAD_ENET1_TX_CLK__ENET1_REF_CLK1| MUX_PAD_CTRL(ENET_CLK_PAD_CTRL),

      MX6_PAD_ENET1_RX_DATA0__ENET1_RDATA00| MUX_PAD_CTRL(ENET_PAD_CTRL),

      MX6_PAD_ENET1_RX_DATA1__ENET1_RDATA01| MUX_PAD_CTRL(ENET_PAD_CTRL),

      MX6_PAD_ENET1_RX_ER__ENET1_RX_ER| MUX_PAD_CTRL(ENET_PAD_CTRL),

      MX6_PAD_ENET1_RX_EN__ENET1_RX_EN| MUX_PAD_CTRL(ENET_PAD_CTRL),

      //ENET1_RESET_PIN

      MX6_PAD_SNVS_TAMPER7__GPIO5_IO07| MUX_PAD_CTRL(NO_PAD_CTRL),

};

static iomux_v3_cfg_t const fec2_pads[] = {

      MX6_PAD_GPIO1_IO06__ENET2_MDIO| MUX_PAD_CTRL(MDIO_PAD_CTRL),

      MX6_PAD_GPIO1_IO07__ENET2_MDC| MUX_PAD_CTRL(ENET_PAD_CTRL),

      MX6_PAD_ENET2_TX_DATA0__ENET2_TDATA00| MUX_PAD_CTRL(ENET_PAD_CTRL),

      MX6_PAD_ENET2_TX_DATA1__ENET2_TDATA01| MUX_PAD_CTRL(ENET_PAD_CTRL),

      MX6_PAD_ENET2_TX_EN__ENET2_TX_EN| MUX_PAD_CTRL(ENET_PAD_CTRL),

      MX6_PAD_ENET2_TX_CLK__ENET2_REF_CLK2| MUX_PAD_CTRL(ENET_CLK_PAD_CTRL),

      MX6_PAD_ENET2_RX_DATA0__ENET2_RDATA00| MUX_PAD_CTRL(ENET_PAD_CTRL),

      MX6_PAD_ENET2_RX_DATA1__ENET2_RDATA01| MUX_PAD_CTRL(ENET_PAD_CTRL),

      MX6_PAD_ENET2_RX_ER__ENET2_RX_ER| MUX_PAD_CTRL(ENET_PAD_CTRL),

      MX6_PAD_ENET2_RX_EN__ENET2_RX_EN| MUX_PAD_CTRL(ENET_PAD_CTRL),

      //ENET2_RESET_PIN

      MX6_PAD_SNVS_TAMPER8__GPIO5_IO08| MUX_PAD_CTRL(NO_PAD_CTRL),

};

static int setup_fec(int fec_id)

{

      structiomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;

      intret;





      if(fec_id == 0) {

               imx_iomux_v3_setup_multiple_pads(fec1_pads,ARRAY_SIZE(fec1_pads));

               gpio_request(ENET1_RESET,"enet1_reset");

               gpio_direction_output(ENET1_RESET, 0);

               mdelay(20);

               gpio_direction_output(ENET1_RESET, 1);

               if(check_module_fused(MX6_MODULE_ENET1))

                     return-1;

               /*

               * Use 50M anatop loopback REF_CLK1 for ENET1,

               * clear gpr1[13], set gpr1[17].

               */

               clrsetbits_le32(&iomuxc_regs->gpr[1],IOMUX_GPR1_FEC1_MASK,

                              IOMUX_GPR1_FEC1_CLOCK_MUX1_SEL_MASK);

      }else {

               imx_iomux_v3_setup_multiple_pads(fec2_pads,ARRAY_SIZE(fec2_pads));

               gpio_request(ENET2_RESET,"enet1_reset");

               gpio_direction_output(ENET2_RESET, 0);

               mdelay(20);

               gpio_direction_output(ENET2_RESET, 1);

               if(check_module_fused(MX6_MODULE_ENET2))

                     return-1;

               /*

               * Use 50M anatop loopback REF_CLK2 for ENET2,

               * clear gpr1[14], set gpr1[18].

               */

               clrsetbits_le32(&iomuxc_regs->gpr[1],IOMUX_GPR1_FEC2_MASK,

                              IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK);

      }

      ret= enable_fec_anatop_clock(fec_id, ENET_50MHZ);

      if(ret)

               returnret;

      enable_enet_clk(1);

      return0;

}

最后在drivers/net/phyphy.c中添加软复位,如下所示

int genphy_update_link(struct phy_device *phydev)
{

unsigned int mii_reg;

#ifdef CONFIG_PHY_SMSC

      staticint lan8720_flag = 0;

      intbmcr_reg = 0;

      if(lan8720_flag == 0){

               bmcr_reg = phy_read(phydev,MDIO_DEVAD_NONE,MII_BMCR);

               phy_write(phydev,MDIO_DEVAD_NONE,MII_BMCR,BMCR_RESET);

               while(phy_read(phydev, MDIO_DEVAD_NONE,MII_BMCR)& 0x8000){

                        udelay(100);

               }

               phy_write(phydev,MDIO_DEVAD_NONE,MII_BMCR,bmcr_reg);

               lan8720_flag = 1;

      }



      #endif
      。。。。。。
   以下不变

}

编译下载uboot ,并运行

U-Boot 2019.04 (May 29 2020 - 00:32:31+0800)

CPU:  Freescale i.MX6ULL rev1.1 792 MHz (running at 396 MHz)

CPU:  Industrial temperature grade (-40C to 105C) at 46C

Reset cause: POR

Model: Freescale i.MX6 ULL 14x14 EVK Board

Board: MX6ULL 14x14 EVK

DRAM: 512 MiB

MMC:  FSL_SDHC: 0, FSL_SDHC: 1

Loading Environment from MMC... OK

Display: ATK4384 (800x480)

Video: 800x480x24

In: serial

Out:  serial

Err:  serial

switch to partitions #0, OK

mmc0 is current device

flash target is MMC:0

Net:

Error: ethernet@020b4000 address not set.

Error: ethernet@020b4000 address not set.

Error: ethernet@02188000 address not set.

eth-1: ethernet@020b4000

Error: ethernet@02188000 address not set.

, eth-1: ethernet@02188000

Fastboot: Normal

Normal Boot

Hit any key to stop autoboot:  0

可以看到上面的提示都是没有给网卡设置mac地址的，下面给网卡设置mac地址

=> setenv eth1addr 00:11:22:fa:fb:fe

=> setenv ethaddr 00:11:22:fa:fb:fd

=> saveenv

Saving Environment to MMC... Writing toMMC(0)... OK

=> reset

resetting ...

=> setenv ethprime eth1

=> saveenv

Saving Environment to MMC... Writing toMMC(0)... OK

设置好相关的 ipaddr gatewayip netmask保存后重启，再进行ping的操作看是否能够ping通局域网内的ip,要是能ping通说明成功了！

=> setenv ipaddr 192.168.100.14

=> setenv  gatewayip 192.168.100.1

=> setenv netmask 225.225.225.0

=> saveenv

Saving Environment to MMC... Writing toMMC(0)... OK

=> ping 192.168.100.1

ethernet@020b4000 Waiting for PHY auto negotiationto complete... done

Using ethernet@020b4000 device

host 192.168.100.1 is alive

=> ping 192.168.100.33

Using ethernet@020b4000 device

host 192.168.100.33 is alive

仰望星空之云 · 发表于 2020-5-30 18:12:07

不错不错，文档代码长了点

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#uboot4.19移植修分享-20200529

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