diff options
| author | Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com> | 2019-07-15 21:47:55 +0200 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2019-07-21 12:45:10 +0200 |
| commit | ef72ba0b87ece8698c7126101f2deeb78c73e357 (patch) | |
| tree | 1123ca8f41309f61a4af16a90622a2571299ce84 /drivers/reset | |
| parent | 690c12965f72129838adc1a2465b7a80d4bc2ed3 (diff) | |
| download | u-boot-ef72ba0b87ece8698c7126101f2deeb78c73e357.tar.gz | |
sysreset: add support for socfpga sysreset
This moves sysreset support for socfgpa from ad-hoc code in mach-socfpga
to a UCLASS_SYSRESET based dm driver.
A side effect is that gen5 and a10 can now select between cold and warm
reset.
Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Diffstat (limited to 'drivers/reset')
| -rw-r--r-- | drivers/reset/reset-socfpga.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/reset/reset-socfpga.c b/drivers/reset/reset-socfpga.c index ee4cbcb02f..822a3fe265 100644 --- a/drivers/reset/reset-socfpga.c +++ b/drivers/reset/reset-socfpga.c @@ -14,6 +14,7 @@ #include <common.h> #include <dm.h> +#include <dm/lists.h> #include <dm/of_access.h> #include <reset-uclass.h> #include <linux/bitops.h> @@ -130,6 +131,23 @@ static int socfpga_reset_remove(struct udevice *dev) return 0; } +static int socfpga_reset_bind(struct udevice *dev) +{ + int ret; + struct udevice *sys_child; + + /* + * The sysreset driver does not have a device node, so bind it here. + * Bind it to the node, too, so that it can get its base address. + */ + ret = device_bind_driver_to_node(dev, "socfpga_sysreset", "sysreset", + dev->node, &sys_child); + if (ret) + debug("Warning: No sysreset driver: ret=%d\n", ret); + + return 0; +} + static const struct udevice_id socfpga_reset_match[] = { { .compatible = "altr,rst-mgr" }, { /* sentinel */ }, @@ -139,6 +157,7 @@ U_BOOT_DRIVER(socfpga_reset) = { .name = "socfpga-reset", .id = UCLASS_RESET, .of_match = socfpga_reset_match, + .bind = socfpga_reset_bind, .probe = socfpga_reset_probe, .priv_auto_alloc_size = sizeof(struct socfpga_reset_data), .ops = &socfpga_reset_ops, |