From c6c731fe311f7da42777ffd31804a4f6aa3f8e19 Mon Sep 17 00:00:00 2001
From: Yutang Jiang <yutang.jiang@nxp.com>
Date: Sat, 29 Oct 2016 00:14:32 +0800
Subject: layerscape: add 64b/32b target for ls1043ardb device

Add support for NXP layerscape ls1043ardb 64b/32b Dev board.

LS1043a is an SoC with 4x64-bit up to 1.6 GHz ARMv8 A53 cores.
ls1043ardb support features as: 2GB DDR4, 128MB NOR/512MB NAND, USB3.0, eSDHC,
I2C, GPIO, PCIe/Mini-PCIe, 6x1G/1x10G network port, etc.

64b/32b ls1043ardb target is using 4.4 kernel, and rcw/u-boot/fman images from
NXP QorIQ SDK release.

All of 4.4 kernel patches porting from SDK release or upstream.

QorIQ SDK ISOs can be downloaded from this location:
http://www.nxp.com/products/software-and-tools/run-time-software/linux-sdk/linux-sdk-for-qoriq-processors:SDKLINUX

Signed-off-by: Yutang Jiang <yutang.jiang@nxp.com>
---
 .../3032-arm64-Add-pdev_archdata-for-dmamask.patch | 51 ++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 target/linux/layerscape/patches-4.4/3032-arm64-Add-pdev_archdata-for-dmamask.patch

(limited to 'target/linux/layerscape/patches-4.4/3032-arm64-Add-pdev_archdata-for-dmamask.patch')

diff --git a/target/linux/layerscape/patches-4.4/3032-arm64-Add-pdev_archdata-for-dmamask.patch b/target/linux/layerscape/patches-4.4/3032-arm64-Add-pdev_archdata-for-dmamask.patch
new file mode 100644
index 0000000..5246872
--- /dev/null
+++ b/target/linux/layerscape/patches-4.4/3032-arm64-Add-pdev_archdata-for-dmamask.patch
@@ -0,0 +1,51 @@
+From f7e48669bb75f3b52e9f3ce1a5d885c49b7c4712 Mon Sep 17 00:00:00 2001
+From: Cristian Sovaiala <cristian.sovaiala@freescale.com>
+Date: Thu, 4 Jun 2015 18:27:20 +0300
+Subject: [PATCH 32/70] arm64: Add pdev_archdata for dmamask
+
+The dma_mask for a device structure is a pointer. This pointer
+needs to be set up before the dma mask can actually be set. Most
+frameworks in the kernel take care of setting this up properly but
+platform devices that don't follow a regular bus structure may not
+ever have this set. As a result, checks such as dma_capable will
+always return false on a raw platform device and dma_set_mask will
+always return -EIO. Fix this by adding a dma_mask in the
+platform_device archdata and setting it to be the dma_mask. Devices
+used in other frameworks can change this as needed.
+
+Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
+---
+ arch/arm64/include/asm/device.h |    1 +
+ arch/arm64/kernel/setup.c       |    7 +++++++
+ 2 files changed, 8 insertions(+)
+
+--- a/arch/arm64/include/asm/device.h
++++ b/arch/arm64/include/asm/device.h
+@@ -25,6 +25,7 @@ struct dev_archdata {
+ };
+ 
+ struct pdev_archdata {
++	u64 dma_mask;
+ };
+ 
+ #endif
+--- a/arch/arm64/kernel/setup.c
++++ b/arch/arm64/kernel/setup.c
+@@ -44,6 +44,7 @@
+ #include <linux/of_platform.h>
+ #include <linux/efi.h>
+ #include <linux/psci.h>
++#include <linux/dma-mapping.h>
+ 
+ #include <asm/acpi.h>
+ #include <asm/fixmap.h>
+@@ -381,3 +382,9 @@ static int __init topology_init(void)
+ 	return 0;
+ }
+ subsys_initcall(topology_init);
++
++void arch_setup_pdev_archdata(struct platform_device *pdev)
++{
++	pdev->archdata.dma_mask = DMA_BIT_MASK(32);
++	pdev->dev.dma_mask = &pdev->archdata.dma_mask;
++}
-- 
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