uboot - debug uart config

有關 debug UART setting:

mx6qsabreauto.h:#define CONFIG_MXC_UART_BASE UART4_BASE
mx6sabresd.h:   #define CONFIG_MXC_UART_BASE UART1_BASE

mx6slevk.h:#define CONFIG_MXC_UART_BASE  UART1_IPS_BASE_ADDR
mx6sx_arm2.h:#define CONFIG_MXC_UART_BASE  UART1_BASE
mx6sxsabreauto.h:#define CONFIG_MXC_UART_BASE  UART1_BASE
mx6sxsabresd.h:#define CONFIG_MXC_UART_BASE  UART1_BASE

所以 auto 是 UART4, SD是 UART1

這是included by..include/config.h
內容是..

/* Automatically generated - do not edit */
#define CONFIG_IMX_CONFIG       board/freescale/mx6qsabreauto/mx6solo.cfg
#define CONFIG_MX6SOLO  1
#define CONFIG_DEFAULT_FDT_FILE "imx6dl-sabreauto.dtb"
#define CONFIG_DDR_MB   1024
#define CONFIG_SYS_BOOT_NAND    1
#define CONFIG_SYS_NOSMP        "nosmp"
#define CONFIG_SYS_ARCH  "arm"
#define CONFIG_SYS_CPU   "armv7"
#define CONFIG_SYS_BOARD "mx6qsabreauto"
#define CONFIG_SYS_VENDOR "freescale"
#define CONFIG_SYS_SOC    "mx6"
#define CONFIG_BOARDDIR board/freescale/mx6qsabreauto
#include  < config_cmd_defaults.h >
#include  < config_defaults.h >
#include  < configs/mx6qsabreauto.h >
#include  < asm/config.h >
#include  < config_fallbacks.h >
#include  < config_uncmd_spl.h >

這是由 mkconfig 產生...

...
cat << EOF >> config.h
#include < config_cmd_defaults.h >
#include < config_defaults.h >
#include < configs/${CONFIG_NAME}.h >
#include < asm/config.h >
...

其中 CONFIG_NAME 就是..

if [ "$options" ] ; then
        echo "Configuring for ${BOARD_NAME} - Board: ${CONFIG_NAME}, Options: ${options}"
else

---

還有 pad mux 的部份：

./mx6qsabreauto/mx6qsabreauto.c:326:  static void setup_iomux_uart(void)
./mx6sabresd   /mx6sabresd.c   :250:  static void setup_iomux_uart(void)