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imx: ventana: make hwconfig initialize based on board configuration 

The hwconfig env var allows user to control hardware specific configuration
of board specific features but not all Ventana boards have the same features.

We will use the magic default value of "_UNKNOWN_" to signify that the
bootloader should create this based on detected board model.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
This commit is contained in:
Tim Harvey 2016-07-15 07:14:25 -07:00 committed by Stefano Babic
parent e86b7adfa3
commit 5911c0924f
2 changed files with 16 additions and 5 deletions
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16
board/gateworks/gw_ventana/gw_ventana.c
View File

@ -700,13 +700,14 @@ static const struct boot_mode board_boot_modes[] = {
int misc_init_r(void)
{
struct ventana_board_info *info = &ventana_info;
char buf[256];
int i;
/* set env vars based on EEPROM data */
if (ventana_info.model[0]) {
char str[16], fdt[36];
char *p;
const char *cputype = "";
int i;
/*
* FDT name will be prefixed with CPU type. Three versions
@ -769,6 +770,19 @@ int misc_init_r(void)
setenv("mem_mb", str);
}
/* Set a non-initialized hwconfig based on board configuration */
if (!strcmp(getenv("hwconfig"), "_UNKNOWN_")) {
sprintf(buf, "hwconfig=");
if (gpio_cfg[board_type].rs232_en)
strcat(buf, "rs232;");
for (i = 0; i < gpio_cfg[board_type].dio_num; i++) {
char buf1[32];
sprintf(buf1, "dio%d:mode=gpio;", i);
if (strlen(buf) + strlen(buf1) < sizeof(buf))
strcat(buf, buf1);
}
setenv("hwconfig", buf);
}
/* setup baseboard specific GPIO based on board and env */
setup_board_gpio(board_type, info);

5
include/configs/gw_ventana.h
View File

@ -271,16 +271,13 @@
/* Environment */
#define CONFIG_IPADDR 192.168.1.1
#define CONFIG_SERVERIP 192.168.1.146
#define HWCONFIG_DEFAULT \
"hwconfig=rs232;" \
"dio0:mode=gpio;dio1:mode=gpio;dio2:mode=gpio;dio3:mode=gpio\0" \
#define CONFIG_EXTRA_ENV_SETTINGS_COMMON \
"pcidisable=1\0" \
"usb_pgood_delay=2000\0" \
"console=ttymxc1\0" \
"bootdevs=usb mmc sata flash\0" \
HWCONFIG_DEFAULT \
"hwconfig=_UNKNOWN_\0" \
"video=\0" \
\
"mtdparts=" MTDPARTS_DEFAULT "\0" \