layerscape: add patches-5.4

Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release
which was tagged LSDK-20.04-V5.4.
https://source.codeaurora.org/external/qoriq/qoriq-components/linux/

For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in
LSDK, port the dts patches from 4.14.

The patches are sorted into the following categories:
  301-arch-xxxx
  302-dts-xxxx
  303-core-xxxx
  701-net-xxxx
  801-audio-xxxx
  802-can-xxxx
  803-clock-xxxx
  804-crypto-xxxx
  805-display-xxxx
  806-dma-xxxx
  807-gpio-xxxx
  808-i2c-xxxx
  809-jailhouse-xxxx
  810-keys-xxxx
  811-kvm-xxxx
  812-pcie-xxxx
  813-pm-xxxx
  814-qe-xxxx
  815-sata-xxxx
  816-sdhc-xxxx
  817-spi-xxxx
  818-thermal-xxxx
  819-uart-xxxx
  820-usb-xxxx
  821-vfio-xxxx

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>

1 files changed, 94 insertions, 0 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
new file mode 100644
index 0000000000..611f96b1a8
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/806-dma-0028-dmaengine-fsl-edma-Add-eDMA-support-for-QorIQ-LS1028.patch
@@ -0,0 +1,94 @@
+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
+@@ -234,6 +234,13 @@ 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,
+@@ -243,6 +250,7 @@ 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 */ }
+ };