openwrt/target/linux/starfive/patches-6.1/1007-dmaengine-dw-axi-dmac-Handle-xfer-start-while-non-id.patch
Zoltan HERPAI 4070e2a64c starfive: add new target for StarFive JH7100/7110 SoC
This target adds support for the StarFive JH7100 and JH7110 SoCs, based on
6.1, as well as a couple boards equipped with these.

Specifications:

SoCs:

JH7100:
 - StarFive JH7100 dual-core RISC-V (U74, RC64GC)
 - additional monitoring (S7) and control (E24) cores
 - 2Mb L2 cache

JH7110:
 - StarFive JH7110 quad-core RISC-V (U74, RV64GC)
 - additional monitoring (S7) and control (E24) cores
 - 2Mb L2 cache

Boards:

VisionFive1:
 - JH7100 @ 1GHz
 - Memory: 8Gb LPDDR4
 - 4x USB3.0
 - 1x GBit ethernet
 - AMPak 6236 wifi / bluetooth
 - audio
 - powered via USB-C

VisionFive2:
 - JH7110 @ 1.5GHz
 - Memory: 2/4/8Gb DDR4
 - 2x Gbit ethernet
 - 2x USB3.0 / 2x USB2.0
 - eMMC / SDIO
 - various multimedia input/outputs (MIPI CSI, HDMI, audio)
 - M.2 key M slot
 - PoE support
 - powered via USB-C

Installation:
Standard SD-card installation via dd-ing the generated image to
an SD-card of at least 256Mb.

Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
2024-03-10 18:21:46 +01:00

56 lines
1.7 KiB
Diff

From 5fdd2623dd3eed156fa1ec65b2096da735bb0cde Mon Sep 17 00:00:00 2001
From: Samin Guo <samin.guo@starfivetech.com>
Date: Wed, 17 Nov 2021 14:50:45 +0800
Subject: [PATCH 1007/1024] dmaengine: dw-axi-dmac: Handle xfer start while
non-idle
Signed-off-by: Samin Guo <samin.guo@starfivetech.com>
Signed-off-by: Curry Zhang <curry.zhang@starfivetech.com>
---
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c | 12 +++++++++++-
drivers/dma/dw-axi-dmac/dw-axi-dmac.h | 1 +
2 files changed, 12 insertions(+), 1 deletion(-)
--- a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
+++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
@@ -382,11 +382,13 @@ static void axi_chan_block_xfer_start(st
u32 irq_mask;
u8 lms = 0; /* Select AXI0 master for LLI fetching */
+ chan->is_err = false;
if (unlikely(axi_chan_is_hw_enable(chan))) {
dev_err(chan2dev(chan), "%s is non-idle!\n",
axi_chan_name(chan));
- return;
+ axi_chan_disable(chan);
+ chan->is_err = true;
}
axi_dma_enable(chan->chip);
@@ -1028,6 +1030,14 @@ static noinline void axi_chan_handle_err
axi_chan_name(chan));
goto out;
}
+ if (chan->is_err) {
+ struct axi_dma_desc *desc = vd_to_axi_desc(vd);
+
+ axi_chan_block_xfer_start(chan, desc);
+ chan->is_err = false;
+ goto out;
+ }
+
/* Remove the completed descriptor from issued list */
list_del(&vd->node);
--- a/drivers/dma/dw-axi-dmac/dw-axi-dmac.h
+++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac.h
@@ -50,6 +50,7 @@ struct axi_dma_chan {
struct dma_slave_config config;
enum dma_transfer_direction direction;
bool cyclic;
+ bool is_err;
/* these other elements are all protected by vc.lock */
bool is_paused;
};