diff options
| -rw-r--r-- | target/linux/apm821xx/patches-4.4/302-dw-dma-hprot-fix-and-equal-priortiy.patch | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/target/linux/apm821xx/patches-4.4/302-dw-dma-hprot-fix-and-equal-priortiy.patch b/target/linux/apm821xx/patches-4.4/302-dw-dma-hprot-fix-and-equal-priortiy.patch new file mode 100644 index 0000000..1e76813 --- /dev/null +++ b/target/linux/apm821xx/patches-4.4/302-dw-dma-hprot-fix-and-equal-priortiy.patch @@ -0,0 +1,25 @@ +--- a/drivers/dma/dw/core.c ++++ b/drivers/dma/dw/core.c +@@ -150,6 +150,8 @@ static void dwc_initialize(struct dw_dma + cfghi |= DWC_CFGH_DST_PER(dwc->dst_id); + cfghi |= DWC_CFGH_SRC_PER(dwc->src_id); + ++ cfghi |= DWC_CFGH_PROTCTL(3); /* bufferable + privileged access */ ++ + channel_writel(dwc, CFG_LO, cfglo); + channel_writel(dwc, CFG_HI, cfghi); + +@@ -1539,11 +1541,8 @@ int dw_dma_probe(struct dw_dma_chip *chi + else + list_add(&dwc->chan.device_node, &dw->dma.channels); + +- /* 7 is highest priority & 0 is lowest. */ +- if (pdata->chan_priority == CHAN_PRIORITY_ASCENDING) +- dwc->priority = pdata->nr_channels - i - 1; +- else +- dwc->priority = i; ++ /* set all channels to the same priority */ ++ dwc->priority = pdata->nr_channels - 1; + + dwc->ch_regs = &__dw_regs(dw)->CHAN[i]; + spin_lock_init(&dwc->lock); |