Attachment 224750 Details for Bug 255465 – [PATCH] Adjust EEPROM read timeout for Intel 4965AGN M2

[patch] [PATCH] Adjust EEPROM read timeout for Intel 4965AGN M2

0001-iwn-adjust-EEPROM-read-timeout-for-Intel-4965AGN-M2.patch (text/plain), 1.13 KB, created by Radosław Chmielarz on 2021-05-07 13:29:01 UTC

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Creator: Radosław Chmielarz

Created: 2021-05-07 13:29:01 UTC

Size: 1.13 KB

patch

obsolete

>From fcd7e5ef66206605965c96729b3c76acbbdd1e96 Mon Sep 17 00:00:00 2001
>From: =?UTF-8?q?Rados=C5=82aw=20Chmielarz?= <radoslaw.chmielarz@emersi.eu>
>Date: Fri, 7 May 2021 15:20:48 +0200
>Subject: [PATCH] iwn: adjust EEPROM read timeout for Intel 4965AGN M2
>
>Reading EEPROM from Intel 4965AGN M2 takes 60 us which was causing panic
>on system startup.
>---
> sys/dev/iwn/if_iwn.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
>diff --git a/sys/dev/iwn/if_iwn.c b/sys/dev/iwn/if_iwn.c
>index b07b52cbea7..4191fb340a0 100644
>--- a/sys/dev/iwn/if_iwn.c
>+++ b/sys/dev/iwn/if_iwn.c
>@@ -1688,13 +1688,13 @@ iwn_read_prom_data(struct iwn_softc *sc, uint32_t addr, void *data, int count)
> 	addr += sc->prom_base;
> 	for (; count > 0; count -= 2, addr++) {
> 		IWN_WRITE(sc, IWN_EEPROM, addr << 2);
>-		for (ntries = 0; ntries < 10; ntries++) {
>+		for (ntries = 0; ntries < 20; ntries++) {
> 			val = IWN_READ(sc, IWN_EEPROM);
> 			if (val & IWN_EEPROM_READ_VALID)
> 				break;
> 			DELAY(5);
> 		}
>-		if (ntries == 10) {
>+		if (ntries == 20) {
> 			device_printf(sc->sc_dev,
> 			    "timeout reading ROM at 0x%x\n", addr);
> 			return ETIMEDOUT;
>-- 
>2.31.1.windows.1
>

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radoslaw.chmielarz: maintainer-approval+

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Attachments on bug 255465: 224750