git: b69c49d10632 - main - dwc: Add support for aal
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Date: Thu, 05 Oct 2023 15:34:58 UTC
The branch main has been updated by manu:
URL: https://cgit.FreeBSD.org/src/commit/?id=b69c49d106325a9ceb06ca0d5b827d1dbcc8a54c
commit b69c49d106325a9ceb06ca0d5b827d1dbcc8a54c
Author: Emmanuel Vadot <manu@FreeBSD.org>
AuthorDate: 2023-09-23 16:56:26 +0000
Commit: Emmanuel Vadot <manu@FreeBSD.org>
CommitDate: 2023-10-05 15:34:38 +0000
dwc: Add support for aal
snps,aal is used to indicate that the DMA engine should
use Address-Aligned Beats.
---
sys/dev/dwc/if_dwc.c | 5 +++++
sys/dev/dwc/if_dwc.h | 1 +
2 files changed, 6 insertions(+)
diff --git a/sys/dev/dwc/if_dwc.c b/sys/dev/dwc/if_dwc.c
index 7acb70457a24..7b9cd936681d 100644
--- a/sys/dev/dwc/if_dwc.c
+++ b/sys/dev/dwc/if_dwc.c
@@ -1610,6 +1610,7 @@ dwc_attach(device_t dev)
bool nopblx8 = false;
bool fixed_burst = false;
bool mixed_burst = false;
+ bool aal = false;
sc = device_get_softc(dev);
sc->dev = dev;
@@ -1650,6 +1651,8 @@ dwc_attach(device_t dev)
fixed_burst = true;
if (OF_hasprop(sc->node, "snps,mixed-burst") == 1)
mixed_burst = true;
+ if (OF_hasprop(sc->node, "snps,aal") == 1)
+ aal = true;
if (IF_DWC_INIT(dev) != 0)
return (ENXIO);
@@ -1697,6 +1700,8 @@ dwc_attach(device_t dev)
reg |= BUS_MODE_FIXEDBURST;
if (mixed_burst)
reg |= BUS_MODE_MIXEDBURST;
+ if (aal)
+ reg |= BUS_MODE_AAL;
WRITE4(sc, BUS_MODE, reg);
diff --git a/sys/dev/dwc/if_dwc.h b/sys/dev/dwc/if_dwc.h
index 113477818e4b..be27b189e4e8 100644
--- a/sys/dev/dwc/if_dwc.h
+++ b/sys/dev/dwc/if_dwc.h
@@ -220,6 +220,7 @@
/* DMA */
#define BUS_MODE 0x1000
#define BUS_MODE_MIXEDBURST (1 << 26)
+#define BUS_MODE_AAL (1 << 25)
#define BUS_MODE_EIGHTXPBL (1 << 24) /* Multiplies PBL by 8 */
#define BUS_MODE_USP (1 << 23)
#define BUS_MODE_RPBL_SHIFT 17 /* Single block transfer size */