Commit 6d656495 authored by Martyn Welch's avatar Martyn Welch Committed by Stefano Babic
Browse files

board: ge: bx50v3: Enable hardware watchdog



Enable the hardware watchdog on bx50v3 to cause it to reset in the event
the board hangs.

Configure GPIO_9 pin as WDOG1_B so that a watchdog timeout results in a
full system reset.

The watchdog is used and reconfigured by systemd approximately 1.7 seconds
into boot. Adding a few seconds for U-Boot and a few more seconds as a
safety margin.

Note that the PCIe controller is _not_ put back into a safe state prior
to board reset.  This is a problem if board reset is implemented as CPU
reset.
Signed-off-by: Ian Ray's avatarIan Ray <ian.ray@ge.com>
Signed-off-by: Martyn Welch's avatarMartyn Welch <martyn.welch@collabora.co.uk>
Signed-off-by: Sebastian Reichel's avatarSebastian Reichel <sebastian.reichel@collabora.co.uk>
parent 2850645c
......@@ -659,6 +659,7 @@ static iomux_v3_cfg_t const misc_pads[] = {
MX6_PAD_EIM_OE__GPIO2_IO25 | MUX_PAD_CTRL(NC_PAD_CTRL),
MX6_PAD_EIM_BCLK__GPIO6_IO31 | MUX_PAD_CTRL(NC_PAD_CTRL),
MX6_PAD_GPIO_1__GPIO1_IO01 | MUX_PAD_CTRL(NC_PAD_CTRL),
MX6_PAD_GPIO_9__WDOG1_B | MUX_PAD_CTRL(NC_PAD_CTRL),
};
#define SUS_S3_OUT IMX_GPIO_NR(4, 11)
#define WIFI_EN IMX_GPIO_NR(6, 14)
......
......@@ -44,6 +44,10 @@
#define CONFIG_REVISION_TAG
#define CONFIG_SYS_MALLOC_LEN (10 * SZ_1M)
#define CONFIG_HW_WATCHDOG
#define CONFIG_IMX_WATCHDOG
#define CONFIG_WATCHDOG_TIMEOUT_MSECS 6000
#define CONFIG_LAST_STAGE_INIT
#define CONFIG_MXC_GPIO
......
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