From: Stefan Roese <sr@denx.de>
Date: Tue, 21 Jul 2020 08:46:03 +0000 (+0200)
Subject: usb: xhci: xhci_mem_init: Use cpu_to_le64() and not xhci_writeq()
X-Git-Tag: submit/tizen_6.0/20211217.073345~25
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=refs%2Fchanges%2F71%2F268171%2F2;p=platform%2Fkernel%2Fu-boot.git

usb: xhci: xhci_mem_init: Use cpu_to_le64() and not xhci_writeq()

xhci_writeq() makes the CPU->LE swapping only when addressing registers
in the xHCI controller address range and not in the local memory (RAM).
We need to use cpu_to_le64() here to ensure that the conversion is done
correctly.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Change-Id: Ibc1cdde25805cf13400bce746711c98bcaa48fe6
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
---

diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 54e9b018b4..19fc414430 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -562,7 +562,7 @@ int xhci_mem_init(struct xhci_ctrl *ctrl, struct xhci_hccr *hccr,
 		trb_64 = 0;
 		trb_64 = (uintptr_t)seg->trbs;
 		struct xhci_erst_entry *entry = &ctrl->erst.entries[val];
-		xhci_writeq(&entry->seg_addr, trb_64);
+		entry->seg_addr = cpu_to_le64(trb_64);
 		entry->seg_size = cpu_to_le32(TRBS_PER_SEGMENT);
 		entry->rsvd = 0;
 		seg = seg->next;