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author | Simon Glass <sjg@chromium.org> | 2015-07-06 12:54:27 -0600 |
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committer | Simon Glass <sjg@chromium.org> | 2015-07-21 17:39:31 -0600 |
commit | 1704d083b3a1acfe167dc2e3b687263f05a65087 (patch) | |
tree | f2c6f522410a574ae46fa0ac871b1935cc7b73a0 /drivers/misc/reset-uclass.c | |
parent | dc6f4d3a55c7e26af6b0cd41bcd9486b16a1ab9e (diff) | |
download | u-boot-imx-1704d083b3a1acfe167dc2e3b687263f05a65087.zip u-boot-imx-1704d083b3a1acfe167dc2e3b687263f05a65087.tar.gz u-boot-imx-1704d083b3a1acfe167dc2e3b687263f05a65087.tar.bz2 |
dm: reset: Allow reset_walk() to return
Add a new reset_walk_halt() function to cause a reset and then halt on
failure. The reset_walk() function returns an error code.
This is needed for testing since otherwise U-Boot will halt in the middle
of a test.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/misc/reset-uclass.c')
-rw-r--r-- | drivers/misc/reset-uclass.c | 31 |
1 files changed, 25 insertions, 6 deletions
diff --git a/drivers/misc/reset-uclass.c b/drivers/misc/reset-uclass.c index ba27757..fdb5c6f 100644 --- a/drivers/misc/reset-uclass.c +++ b/drivers/misc/reset-uclass.c @@ -25,23 +25,34 @@ int reset_request(struct udevice *dev, enum reset_t type) return ops->request(dev, type); } -void reset_walk(enum reset_t type) +int reset_walk(enum reset_t type) { struct udevice *dev; - int ret = 0; + int ret = -ENOSYS; while (ret != -EINPROGRESS && type < RESET_COUNT) { for (uclass_first_device(UCLASS_RESET, &dev); - dev; - uclass_next_device(&dev)) { + dev; + uclass_next_device(&dev)) { ret = reset_request(dev, type); if (ret == -EINPROGRESS) break; } + type++; } + return ret; +} + +void reset_walk_halt(enum reset_t type) +{ + int ret; + + ret = reset_walk(type); + /* Wait for the reset to take effect */ - mdelay(100); + if (ret == -EINPROGRESS) + mdelay(100); /* Still no reset? Give up */ printf("Reset not supported on this platform\n"); @@ -53,7 +64,15 @@ void reset_walk(enum reset_t type) */ void reset_cpu(ulong addr) { - reset_walk(RESET_WARM); + reset_walk_halt(RESET_WARM); +} + + +int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + reset_walk_halt(RESET_WARM); + + return 0; } UCLASS_DRIVER(reset) = { |