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| author | Randall Spangler <rspangler@chromium.org> | 2012-01-11 11:36:28 -0800 |
|---|---|---|
| committer | Randall Spangler <rspangler@chromium.org> | 2012-01-11 11:37:55 -0800 |
| commit | 1f2f8627c3ad74beb4be6ab8709aa7c260692be1 (patch) | |
| tree | 6686740565f56c32fdeb9a042cb1782d4cc1e127 /chip/lm4/gpio.c | |
| parent | a767d9b22b248095b609a4751ca46ec2b18dbb13 (diff) | |
| download | chrome-ec-1f2f8627c3ad74beb4be6ab8709aa7c260692be1.tar.gz | |
Add JTAG module
This just ensures the JTAG pins are reset to JTAG function on warm reboot.
Signed-off-by: Randall Spangler <rspangler@chromium.org>
BUG=chrome-os-partner:7448
TEST=none
Change-Id: I0cccdbe7a68c228db7f354898ed30598e9fabff0
Diffstat (limited to 'chip/lm4/gpio.c')
| -rw-r--r-- | chip/lm4/gpio.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/chip/lm4/gpio.c b/chip/lm4/gpio.c index 974f849d8e..bc0e32fc31 100644 --- a/chip/lm4/gpio.c +++ b/chip/lm4/gpio.c @@ -18,7 +18,8 @@ struct gpio_info { const char *name; int port; /* Port (LM4_GPIO_*) */ - int mask; /* Bitmask on that port (0x01 - 0x80) */ + int mask; /* Bitmask on that port (0x01 - 0x80; 0x00 = + signal not implemented) */ void (*irq_handler)(enum gpio_signal signal); }; @@ -201,6 +202,11 @@ static int command_gpio_set(int argc, char **argv) return EC_ERROR_UNKNOWN; } + if (!signal_info[i].mask) { + uart_puts("Signal is not implemented; ignoring request.\n"); + return EC_SUCCESS; + } + v = strtoi(argv[2], &e, 0); if (*e) { uart_puts("Invalid signal value.\n"); |