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authorYutang Jiang <yutang.jiang@nxp.com>2016-10-29 00:14:32 +0800
committerJohn Crispin <john@phrozen.org>2016-10-31 17:00:10 +0100
commitc6c731fe311f7da42777ffd31804a4f6aa3f8e19 (patch)
treed92c7296f82d46d1b2da30933a97595f6cb8ad66 /target/linux/layerscape/patches-4.4/0059-PCI-designware-Remove-incorrect-RC-memory-base-limit.patch
parenta34f96d6cf80c7c3c425076714d9c4caa67e3670 (diff)
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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>
Diffstat (limited to 'target/linux/layerscape/patches-4.4/0059-PCI-designware-Remove-incorrect-RC-memory-base-limit.patch')
-rw-r--r--target/linux/layerscape/patches-4.4/0059-PCI-designware-Remove-incorrect-RC-memory-base-limit.patch45
1 files changed, 45 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-4.4/0059-PCI-designware-Remove-incorrect-RC-memory-base-limit.patch b/target/linux/layerscape/patches-4.4/0059-PCI-designware-Remove-incorrect-RC-memory-base-limit.patch
new file mode 100644
index 0000000000..5eb0bb1a6f
--- /dev/null
+++ b/target/linux/layerscape/patches-4.4/0059-PCI-designware-Remove-incorrect-RC-memory-base-limit.patch
@@ -0,0 +1,45 @@
+From ae717a9744a3e18f2ed0a6aa44e279c89ad5052c Mon Sep 17 00:00:00 2001
+From: Gabriele Paoloni <gabriele.paoloni@huawei.com>
+Date: Sat, 16 Apr 2016 12:03:39 +0100
+Subject: [PATCH 59/70] PCI: designware: Remove incorrect RC memory base/limit
+ configuration
+
+Currently dw_pcie_setup_rc() configures memory base and memory limit in the
+type1 configuration header for the root complex. In doing so it uses the
+CPU address (pp->mem_base) rather than the bus address (pp->mem_bus_addr).
+This is wrong and it is useless since the configuration is overwritten
+later on when pci_bus_assign_resources() is called.
+
+Remove this configuration from dw_pcie_setup_rc().
+
+Signed-off-by: Gabriele Paoloni <gabriele.paoloni@huawei.com>
+Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
+Acked-by: Pratyush Anand <pratyush.anand@gmail.com>
+---
+ drivers/pci/host/pcie-designware.c | 8 --------
+ 1 file changed, 8 deletions(-)
+
+--- a/drivers/pci/host/pcie-designware.c
++++ b/drivers/pci/host/pcie-designware.c
+@@ -708,8 +708,6 @@ static struct pci_ops dw_pcie_ops = {
+ void dw_pcie_setup_rc(struct pcie_port *pp)
+ {
+ u32 val;
+- u32 membase;
+- u32 memlimit;
+
+ /* set the number of lanes */
+ dw_pcie_readl_rc(pp, PCIE_PORT_LINK_CONTROL, &val);
+@@ -768,12 +766,6 @@ void dw_pcie_setup_rc(struct pcie_port *
+ val |= 0x00010100;
+ dw_pcie_writel_rc(pp, val, PCI_PRIMARY_BUS);
+
+- /* setup memory base, memory limit */
+- membase = ((u32)pp->mem_base & 0xfff00000) >> 16;
+- memlimit = (pp->mem_size + (u32)pp->mem_base) & 0xfff00000;
+- val = memlimit | membase;
+- dw_pcie_writel_rc(pp, val, PCI_MEMORY_BASE);
+-
+ /* setup command register */
+ dw_pcie_readl_rc(pp, PCI_COMMAND, &val);
+ val &= 0xffff0000;