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From: Jamin Lin <jamin_lin@aspeedtech.com>
To: "Cédric Le Goater" <clg@kaod.org>,
	"Peter Maydell" <peter.maydell@linaro.org>,
	"Steven Lee" <steven_lee@aspeedtech.com>,
	"Troy Lee" <leetroy@gmail.com>,
	"Andrew Jeffery" <andrew@codeconstruct.com.au>,
	"Joel Stanley" <joel@jms.id.au>,
	"open list:ASPEED BMCs" <qemu-arm@nongnu.org>,
	"open list:All patches CC here" <qemu-devel@nongnu.org>
Cc: Jamin Lin <jamin_lin@aspeedtech.com>,
	Troy Lee <troy_lee@aspeedtech.com>,
	 Kane Chen <kane_chen@aspeedtech.com>,
	"flwu@google.com" <flwu@google.com>,
	 "nabihestefan@google.com" <nabihestefan@google.com>
Subject: [PATCH v1 12/13] hw/arm/aspeed_ast27x0: Enable 64-bit EHCI DMA addressing
Date: Wed, 11 Mar 2026 07:26:30 +0000	[thread overview]
Message-ID: <20260311072614.1095587-13-jamin_lin@aspeedtech.com> (raw)
In-Reply-To: <20260311072614.1095587-1-jamin_lin@aspeedtech.com>

AST2700 supports a 64-bit DRAM address space. Therefore, DMA
transactions must be capable of accessing 64-bit addresses.

Enable the "caps-64bit-addr" property for the EHCI controllers
on AST2700 so that USB DMA operations can correctly handle
64-bit memory addresses.

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
---
 hw/arm/aspeed_ast27x0.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hw/arm/aspeed_ast27x0.c b/hw/arm/aspeed_ast27x0.c
index 87dcb82e1b..4a1f7cad73 100644
--- a/hw/arm/aspeed_ast27x0.c
+++ b/hw/arm/aspeed_ast27x0.c
@@ -856,6 +856,8 @@ static void aspeed_soc_ast2700_realize(DeviceState *dev, Error **errp)
 
     /* EHCI */
     for (i = 0; i < sc->ehcis_num; i++) {
+        object_property_set_bool(OBJECT(&s->ehci[i]), "caps-64bit-addr", true,
+                                 &error_abort);
         if (!sysbus_realize(SYS_BUS_DEVICE(&s->ehci[i]), errp)) {
             return;
         }
-- 
2.43.0


  parent reply	other threads:[~2026-03-11  7:30 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-11  7:26 [PATCH v1 00/13] hw/usb/ehci: Add 64-bit descriptor addressing support Jamin Lin
2026-03-11  7:26 ` [PATCH v1 01/13] hw/usb/hcd-ehci.h: Fix coding style issues reported by checkpatch Jamin Lin
2026-03-11  7:26 ` [PATCH v1 02/13] hw/usb/hcd-ehci.c: " Jamin Lin
2026-03-11  7:26 ` [PATCH v1 03/13] hw/usb/hcd-ehci: Change descriptor addresses to 64-bit Jamin Lin
2026-03-11  7:26 ` [PATCH v1 04/13] hw/usb/trace-events: Print EHCI queue and transfer addresses as 64-bit Jamin Lin
2026-03-11  7:26 ` [PATCH v1 05/13] hw/usb/hcd-ehci: Add property to advertise 64-bit addressing capability Jamin Lin
2026-03-11  7:26 ` [PATCH v1 06/13] hw/usb/hcd-ehci: Reject CTRLDSSEGMENT writes without 64-bit capability Jamin Lin
2026-03-11  7:26 ` [PATCH v1 07/13] hw/usb/hcd-ehci: Implement 64-bit QH descriptor addressing Jamin Lin
2026-03-11  7:26 ` [PATCH v1 08/13] hw/usb/hcd-ehci: Implement 64-bit qTD " Jamin Lin
2026-03-11  7:26 ` [PATCH v1 09/13] hw/usb/hcd-ehci: Implement 64-bit iTD " Jamin Lin
2026-03-11  7:26 ` [PATCH v1 10/13] hw/usb/hcd-ehci: Implement 64-bit siTD " Jamin Lin
2026-03-11  7:26 ` [PATCH v1 11/13] hw/usb/hcd-ehci: Add descriptor address offset property Jamin Lin
2026-03-11  7:26 ` Jamin Lin [this message]
2026-03-11  7:26 ` [PATCH v1 13/13] hw/arm/aspeed_ast27x0: Set EHCI descriptor address offset Jamin Lin

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