On Thu, 28 Mar 2024 14:01:22 +0100 Stefan Roese sr@denx.de wrote:
On 3/28/24 12:21, Marek Behún wrote:
On Thu, 28 Mar 2024 11:04:45 +0100 Stefan Roese sr@denx.de wrote:
+static int mvebu_sysreset_request(struct udevice *dev, enum sysreset_t type) +{
- struct regmap *regmap = syscon_get_regmap(dev->parent);
- uint bit;
- if (type != SYSRESET_COLD)
return -EPROTONOSUPPORT;- bit = MVEBU_GLOBAL_SOFT_RST_BIT;
- regmap_update_bits(regmap, MVEBU_RSTOUTN_MASK_REG, bit, bit);
- regmap_update_bits(regmap, MVEBU_SYS_SOFT_RST_REG, bit, bit);
- while (1)
;A comment before this endless loop might be helpful here.
The code does the same as reset_cpu() in cpu.c, and the while() cycle is not commented there.
Sure, other code might suffer this undocumented endless loop as well. And again, this is more a nitpicking comment than a real requirement.
But we can add something like /* something has gone wrong if we reach here, so we may as well stay * here */
What do you think? Could you amend the patch?
More something like this:
/* Loop while waiting for the reset */ while (1) ;
As of now I don't see a need for v4.
I may sent another patches regarding DDR training, but it will be made on top of this series.
Marek