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Code Issues Releases Wiki Activity

jlink_spi: Add option to enable target power

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Change-Id: I026c22ae1c22541d0024f164c827909ca4a34cf4
Signed-off-by: Marc Schink <dev@zapb.de>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/48380
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Marc Schink
2020-08-23 16:19:44 +02:00
committed by Nico Huber
parent 9f44e1494d
commit 393e19bd2e
2 changed files with 50 additions and 1 deletions
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48
jlink_spi.c
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@ -55,6 +55,7 @@ struct jlink_spi_data {
struct jaylink_context *ctx;
struct jaylink_device_handle *devh;
bool reset_cs;
bool enable_target_power;
};
static bool assert_cs(struct jlink_spi_data *jlink_data)
@ -158,11 +159,20 @@ static int jlink_spi_send_command(const struct flashctx *flash, unsigned int wri
static int jlink_spi_shutdown(void *data)
{
struct jlink_spi_data *jlink_data = data;
if (jlink_data->enable_target_power) {
int ret = jaylink_set_target_power(jlink_data->devh, false);
if (ret != JAYLINK_OK) {
msg_perr("jaylink_set_target_power() failed: %s.\n",
jaylink_strerror(ret));
}
}
if (jlink_data->devh)
jaylink_close(jlink_data->devh);
jaylink_exit(jlink_data->ctx);
/* jlink_data->ctx, jlink_data->devh are freed by jaylink_close and jaylink_exit */
free(jlink_data);
return 0;
@ -190,6 +200,7 @@ static int jlink_spi_init(void)
struct jaylink_device_handle *jaylink_devh = NULL;
bool reset_cs;
struct jlink_spi_data *jlink_data = NULL;
bool enable_target_power;
arg = extract_programmer_param("spispeed");
@ -268,6 +279,21 @@ static int jlink_spi_init(void)
else
msg_pdbg("Using TRST as chip select signal.\n");
enable_target_power = false;
arg = extract_programmer_param("power");
if (arg) {
if (!strcasecmp(arg, "on")) {
enable_target_power = true;
} else {
msg_perr("Invalid value for 'power' argument: '%s'.\n", arg);
free(arg);
return 1;
}
}
free(arg);
ret = jaylink_init(&jaylink_ctx);
if (ret != JAYLINK_OK) {
@ -377,6 +403,13 @@ static int jlink_spi_init(void)
}
}
if (enable_target_power) {
if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_SET_TARGET_POWER)) {
msg_perr("Device does not support target power.\n");
goto init_err;
}
}
uint32_t ifaces;
ret = jaylink_get_available_interfaces(jaylink_devh, &ifaces);
@ -398,6 +431,18 @@ static int jlink_spi_init(void)
goto init_err;
}
if (enable_target_power) {
ret = jaylink_set_target_power(jaylink_devh, true);
if (ret != JAYLINK_OK) {
msg_perr("jaylink_set_target_power() failed: %s.\n", jaylink_strerror(ret));
goto init_err;
}
/* Wait some time until the target is powered up. */
internal_sleep(10000);
}
struct jaylink_hardware_status hwstat;
ret = jaylink_get_hardware_status(jaylink_devh, &hwstat);
@ -464,6 +509,7 @@ static int jlink_spi_init(void)
jlink_data->ctx = jaylink_ctx;
jlink_data->devh = jaylink_devh;
jlink_data->reset_cs = reset_cs;
jlink_data->enable_target_power = enable_target_power;
/* Ensure that the CS signal is not active initially. */
if (!deassert_cs(jlink_data))