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am335x, guardian: update guardian board

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- add BOARD_LATE_INIT function calls in board.c
  - add swi_status detection in board.c
  - mux: add guardian interfaces to single pinmux structure
  - am33xx, kconfig: add BOARD_LATE_INIT for GUARDIAN board

Signed-off-by: Moses Christopher <BollavarapuMoses.Christopher@in.bosch.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Moses Christopher 2019-09-17 14:25:37 +00:00 committed by Tom Rini
parent 92ffd0d9ed
commit b1476b52b3
3 changed files with 65 additions and 21 deletions
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1
arch/arm/mach-omap2/am33xx/Kconfig
View File

@ -89,6 +89,7 @@ config TARGET_AM335X_SHC
config TARGET_AM335X_GUARDIAN
bool "Support am335x based guardian board from bosch"
select BOARD_LATE_INIT
select DM
select DM_SERIAL
select DM_GPIO

53
board/bosch/guardian/board.c
View File

@ -172,6 +172,8 @@ void sdram_init(void)
int board_init(void)
{
save_omap_boot_params();
#if defined(CONFIG_HW_WATCHDOG)
hw_watchdog_init();
#endif
@ -183,3 +185,54 @@ int board_init(void)
#endif
return 0;
}
#ifdef CONFIG_BOARD_LATE_INIT
static void set_bootmode_env(void)
{
char *boot_device_name = NULL;
char *boot_mode_gpio = "gpio@44e07000_14";
int ret;
int value;
struct gpio_desc boot_mode_desc;
switch (gd->arch.omap_boot_device) {
case BOOT_DEVICE_NAND:
boot_device_name = "nand";
break;
case BOOT_DEVICE_USBETH:
boot_device_name = "usbeth";
break;
default:
break;
}
if (boot_device_name)
env_set("boot_device", boot_device_name);
ret = dm_gpio_lookup_name(boot_mode_gpio, &boot_mode_desc);
if (ret) {
printf("%s is not found\n", boot_mode_gpio);
goto err;
}
ret = dm_gpio_request(&boot_mode_desc, "setup_bootmode_env");
if (ret && ret != -EBUSY) {
printf("requesting gpio: %s failed\n", boot_mode_gpio);
goto err;
}
value = dm_gpio_get_value(&boot_mode_desc);
value ? env_set("swi_status", "0") : env_set("swi_status", "1");
return;
err:
env_set("swi_status", "err");
}
int board_late_init(void)
{
set_bootmode_env();
return 0;
}
#endif /* CONFIG_BOARD_LATE_INIT */

32
board/bosch/guardian/mux.c
View File

@ -26,24 +26,16 @@ static struct module_pin_mux i2c0_pin_mux[] = {
{-1},
};
static struct module_pin_mux adc_voltages_en[] = {
{OFFSET(mcasp0_ahclkx), (MODE(7) | PULLUP_EN)},
{-1},
};
static struct module_pin_mux asp_power_en[] = {
{OFFSET(mcasp0_aclkx), (MODE(7) | PULLUP_EN)},
{-1},
};
static struct module_pin_mux switch_off_3v6_pin_mux[] = {
{OFFSET(mii1_txd0), (MODE(7) | PULLUP_EN)},
/*
* The uart1 lines are made floating inputs, based on the Guardian
* A2 Sample Power Supply Schematics
*/
{OFFSET(uart1_rxd), (MODE(7) | PULLUDDIS)},
{OFFSET(uart1_txd), (MODE(7) | PULLUDDIS)},
static struct module_pin_mux guardian_interfaces_pin_mux[] = {
{OFFSET(mcasp0_ahclkx), (MODE(7) | PULLDOWN_EN)},
{OFFSET(mcasp0_aclkx), (MODE(7) | PULLUP_EN)},
{OFFSET(mii1_txd0), (MODE(7) | PULLUP_EN)},
{OFFSET(uart1_rxd), (MODE(7) | RXACTIVE | PULLUDDIS)},
{OFFSET(uart1_txd), (MODE(7) | PULLUDDIS)},
{OFFSET(mii1_crs), (MODE(7) | PULLDOWN_EN)},
{OFFSET(rmii1_refclk), (MODE(7) | PULLDOWN_EN)},
{OFFSET(mii1_txd3), (MODE(7) | PULLUDDIS)},
{OFFSET(mii1_rxdv), (MODE(7) | PULLDOWN_EN)},
{-1},
};
@ -93,7 +85,5 @@ void enable_board_pin_mux(void)
#ifdef CONFIG_NAND
configure_module_pin_mux(nand_pin_mux);
#endif
configure_module_pin_mux(adc_voltages_en);
configure_module_pin_mux(asp_power_en);
configure_module_pin_mux(switch_off_3v6_pin_mux);
configure_module_pin_mux(guardian_interfaces_pin_mux);
}