imx6: kernel: add GW5520 support

The GW5520 is a small form-factor single-board computer with the following
features:
 * 70x100mm form-factor
 * IMX6DL 800MHz SoC (IMX6Q optional)
 * 512MB 32bit DDR3 SDRAM (up to 2GB optional)
 * 256MB NAND FLASH (up to 2GB optional)
 * Gateworks System Controller
 * 2x front-panel Intel i210 GbE adapters with passive PoE support
 * 2x MiniPCIe sockets with USB support
 * 2x front-panel USB
 * 1x rear-panel full-size HDMI connector
 * 1x front-panel bi-color user LED
 * 1x front-panel user pushbutton
 * 1x rear-panel barrel jack for power
 * 1x Application connector with:
  * 2x TTL level UARTs
  * 10x TTL level Digital IO

Signed-off-by: Tim Harvey <tharvey@gateworks.com>

SVN-Revision: 42148

2 files changed, 76 insertions, 0 deletions

diff --git a/target/linux/imx6/patches-3.14/208-ventana-plx-allow-override-gpio-output-mask.patch b/target/linux/imx6/patches-3.14/208-ventana-plx-allow-override-gpio-output-mask.patch
new file mode 100644
index 0000000000..7c2d1b0936
--- /dev/null
+++ b/target/linux/imx6/patches-3.14/208-ventana-plx-allow-override-gpio-output-mask.patch
@@ -0,0 +1,58 @@
+This patch allows passing in the gpio output mask used for GPIO0-7 on the
+PLX PCIe bridge. These GPIO's are used for PERST# on the downstream ports.
+
+Allowing the kernel to override the default configuration allows for keeping
+specific devices held in reset. One important use of this is to allow
+temporarily disabling devices that may request too many resources such as
+an unprogrammed i210 device.
+
+--- a/arch/arm/mach-imx/mach-imx6q.c
++++ b/arch/arm/mach-imx/mach-imx6q.c
+@@ -84,6 +84,7 @@ static int ksz9031rn_phy_fixup(struct ph
+  * fixup for PLX PEX8909 bridge to configure GPIO1-7 as output High
+  * as they are used for slots1-7 PERST#
+  */
++unsigned int ventana_plx_gpio = 0xfe;
+ static void ventana_pciesw_early_fixup(struct pci_dev *dev)
+ {
+ 	u32 dw;
+@@ -95,19 +96,25 @@ static void ventana_pciesw_early_fixup(s
+ 		return;
+ 
+ 	pci_read_config_dword(dev, 0x62c, &dw);
++	dev_info(&dev->dev, "de-asserting downstream PERST# 0x%04x\n",
++		 ventana_plx_gpio);
+ 	dw |= 0xaaa8; // GPIO1-7 outputs
+ 	pci_write_config_dword(dev, 0x62c, dw);
+-
+-	pci_read_config_dword(dev, 0x644, &dw);
+-	dw |= 0xfe;   // GPIO1-7 output high
+-	pci_write_config_dword(dev, 0x644, dw);
+-
++	pci_write_config_dword(dev, 0x644, ventana_plx_gpio);
+ 	msleep(100);
+ }
+ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8609, ventana_pciesw_early_fixup);
+ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8606, ventana_pciesw_early_fixup);
+ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8604, ventana_pciesw_early_fixup);
+ 
++static int __init setup_ventana_plx_gpio(char *str)
++{
++	get_option(&str, &ventana_plx_gpio);
++
++	return 0;
++}
++early_param("plx_gpio", setup_ventana_plx_gpio);
++
+ static int ar8031_phy_fixup(struct phy_device *dev)
+ {
+ 	u16 val;
+@@ -308,7 +315,7 @@ static void __init imx6q_init_irq(void)
+ 	irqchip_init();
+ }
+ 
+-static const char *imx6q_dt_compat[] __initconst = {
++static const char *imx6q_dt_compat[] __initdata = {
+ 	"fsl,imx6dl",
+ 	"fsl,imx6q",
+ 	NULL,
diff --git a/target/linux/imx6/patches-3.14/209-ventana-gw552x.patch b/target/linux/imx6/patches-3.14/209-ventana-gw552x.patch
new file mode 100644
index 0000000000..7c7a295cf5
--- /dev/null
+++ b/target/linux/imx6/patches-3.14/209-ventana-gw552x.patch
@@ -0,0 +1,18 @@
+--- a/arch/arm/boot/dts/Makefile
++++ b/arch/arm/boot/dts/Makefile
+@@ -158,6 +158,7 @@ dtb-$(CONFIG_ARCH_MXC) += \
+ 	imx6dl-gw52xx.dtb \
+ 	imx6dl-gw53xx.dtb \
+ 	imx6dl-gw54xx.dtb \
++	imx6dl-gw552x.dtb \
+ 	imx6dl-hummingboard.dtb \
+ 	imx6dl-sabreauto.dtb \
+ 	imx6dl-sabresd.dtb \
+@@ -169,6 +170,7 @@ dtb-$(CONFIG_ARCH_MXC) += \
+ 	imx6q-gw53xx.dtb \
+ 	imx6q-gw5400-a.dtb \
+ 	imx6q-gw54xx.dtb \
++	imx6q-gw552x.dtb \
+ 	imx6q-phytec-pbab01.dtb \
+ 	imx6q-sabreauto.dtb \
+ 	imx6q-sabrelite.dtb \