diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/806-dma-0028-dmaengine-fsl-edma-Add-eDMA-support-for-QorIQ-LS1028.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/806-dma-0028-dmaengine-fsl-edma-Add-eDMA-support-for-QorIQ-LS1028.patch | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/target/linux/layerscape/patches-5.4/806-dma-0028-dmaengine-fsl-edma-Add-eDMA-support-for-QorIQ-LS1028.patch b/target/linux/layerscape/patches-5.4/806-dma-0028-dmaengine-fsl-edma-Add-eDMA-support-for-QorIQ-LS1028.patch deleted file mode 100644 index 4707eccdab..0000000000 --- a/target/linux/layerscape/patches-5.4/806-dma-0028-dmaengine-fsl-edma-Add-eDMA-support-for-QorIQ-LS1028.patch +++ /dev/null @@ -1,94 +0,0 @@ -From 83d2cb1c64c5a34f23b34fcee715a68be230c232 Mon Sep 17 00:00:00 2001 -From: Peng Ma <peng.ma@nxp.com> -Date: Thu, 12 Dec 2019 03:38:10 +0000 -Subject: [PATCH] dmaengine: fsl-edma: Add eDMA support for QorIQ LS1028A - platform - -Our platforms(such as LS1021A, LS1012A, LS1043A, LS1046A, LS1028A) with -below registers(CHCFG0 - CHCFG15) of eDMA as follows: -*-----------------------------------------------------------* -| Offset | OTHERS | LS1028A | -|--------------|--------------------|-----------------------| -| 0x0 | CHCFG0 | CHCFG3 | -|--------------|--------------------|-----------------------| -| 0x1 | CHCFG1 | CHCFG2 | -|--------------|--------------------|-----------------------| -| 0x2 | CHCFG2 | CHCFG1 | -|--------------|--------------------|-----------------------| -| 0x3 | CHCFG3 | CHCFG0 | -|--------------|--------------------|-----------------------| -| ... | ...... | ...... | -|--------------|--------------------|-----------------------| -| 0xC | CHCFG12 | CHCFG15 | -|--------------|--------------------|-----------------------| -| 0xD | CHCFG13 | CHCFG14 | -|--------------|--------------------|-----------------------| -| 0xE | CHCFG14 | CHCFG13 | -|--------------|--------------------|-----------------------| -| 0xF | CHCFG15 | CHCFG12 | -*-----------------------------------------------------------* - -This patch is to improve edma driver to fit LS1028A platform. - -Signed-off-by: Peng Ma <peng.ma@nxp.com> -Reviewed-by: Robin Gong <yibin.gong@nxp.com> -Link: https://lore.kernel.org/r/20191212033714.4090-1-peng.ma@nxp.com -Signed-off-by: Vinod Koul <vkoul@kernel.org> ---- - drivers/dma/fsl-edma-common.c | 5 +++++ - drivers/dma/fsl-edma-common.h | 1 + - drivers/dma/fsl-edma.c | 8 ++++++++ - 3 files changed, 14 insertions(+) - ---- a/drivers/dma/fsl-edma-common.c -+++ b/drivers/dma/fsl-edma-common.c -@@ -109,10 +109,15 @@ void fsl_edma_chan_mux(struct fsl_edma_c - u32 ch = fsl_chan->vchan.chan.chan_id; - void __iomem *muxaddr; - unsigned int chans_per_mux, ch_off; -+ int endian_diff[4] = {3, 1, -1, -3}; - u32 dmamux_nr = fsl_chan->edma->drvdata->dmamuxs; - - chans_per_mux = fsl_chan->edma->n_chans / dmamux_nr; - ch_off = fsl_chan->vchan.chan.chan_id % chans_per_mux; -+ -+ if (fsl_chan->edma->drvdata->mux_swap) -+ ch_off += endian_diff[ch_off % 4]; -+ - muxaddr = fsl_chan->edma->muxbase[ch / chans_per_mux]; - slot = EDMAMUX_CHCFG_SOURCE(slot); - ---- a/drivers/dma/fsl-edma-common.h -+++ b/drivers/dma/fsl-edma-common.h -@@ -148,6 +148,7 @@ struct fsl_edma_drvdata { - enum edma_version version; - u32 dmamuxs; - bool has_dmaclk; -+ bool mux_swap; - int (*setup_irq)(struct platform_device *pdev, - struct fsl_edma_engine *fsl_edma); - }; ---- a/drivers/dma/fsl-edma.c -+++ b/drivers/dma/fsl-edma.c -@@ -241,6 +241,13 @@ static struct fsl_edma_drvdata vf610_dat - .setup_irq = fsl_edma_irq_init, - }; - -+static struct fsl_edma_drvdata ls1028a_data = { -+ .version = v1, -+ .dmamuxs = DMAMUX_NR, -+ .mux_swap = true, -+ .setup_irq = fsl_edma_irq_init, -+}; -+ - static struct fsl_edma_drvdata imx7ulp_data = { - .version = v3, - .dmamuxs = 1, -@@ -250,6 +257,7 @@ static struct fsl_edma_drvdata imx7ulp_d - - static const struct of_device_id fsl_edma_dt_ids[] = { - { .compatible = "fsl,vf610-edma", .data = &vf610_data}, -+ { .compatible = "fsl,ls1028a-edma", .data = &ls1028a_data}, - { .compatible = "fsl,imx7ulp-edma", .data = &imx7ulp_data}, - { /* sentinel */ } - }; |