mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-23 15:32:33 +00:00
34 lines
1.2 KiB
Diff
34 lines
1.2 KiB
Diff
|
From d9317f90391167ebc275696d9df3c21ce754d609 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
|
||
|
|
Date: Thu, 7 May 2020 19:20:20 +0200
|
||
|
|
Subject: [PATCH] PCI: brcmstb: Assert fundamental reset on
|
||
|
|
initialization
|
||
|
|
|
||
|
|
commit 22e21e51ce755399fd42055a3f668ee4af370881 upstream.
|
||
|
|
|
||
|
|
While preparing the driver for upstream this detail was missed.
|
||
|
|
|
||
|
|
If not asserted during the initialization process, devices connected on
|
||
|
|
the bus will not be made aware of the internal reset happening. This,
|
||
|
|
potentially resulting in unexpected behavior.
|
||
|
|
|
||
|
|
Link: https://lore.kernel.org/r/20200507172020.18000-1-nsaenzjulienne@suse.de
|
||
|
|
Fixes: c0452137034b ("PCI: brcmstb: Add Broadcom STB PCIe host controller driver")
|
||
|
|
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
|
||
|
|
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
|
||
|
|
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
|
||
|
|
---
|
||
|
|
drivers/pci/controller/pcie-brcmstb.c | 1 +
|
||
|
|
1 file changed, 1 insertion(+)
|
||
|
|
|
||
|
|
--- a/drivers/pci/controller/pcie-brcmstb.c
|
||
|
|
+++ b/drivers/pci/controller/pcie-brcmstb.c
|
||
|
|
@@ -697,6 +697,7 @@ static int brcm_pcie_setup(struct brcm_p
|
||
|
|
|
||
|
|
/* Reset the bridge */
|
||
|
|
brcm_pcie_bridge_sw_init_set(pcie, 1);
|
||
|
|
+ brcm_pcie_perst_set(pcie, 1);
|
||
|
|
|
||
|
|
usleep_range(100, 200);
|
||
|
|
|