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-rw-r--r--target/linux/imx6/patches-3.10/120-ventana-init.ptach70
1 files changed, 70 insertions, 0 deletions
diff --git a/target/linux/imx6/patches-3.10/120-ventana-init.ptach b/target/linux/imx6/patches-3.10/120-ventana-init.ptach
new file mode 100644
index 0000000000..2dd91d2e9a
--- /dev/null
+++ b/target/linux/imx6/patches-3.10/120-ventana-init.ptach
@@ -0,0 +1,70 @@
+Many of the Gateworks Ventana boards use a PLX PEX860X PCIe Switch
+and utilize its GPIO outputs as PERST# for downstream ports. This
+patch configures them appropriately during enumeration.
+
+Additionally many of the Ventana boards use CKO1 as the clock input for
+an analog audio codec which is setup here.
+
+--- a/arch/arm/mach-imx/mach-imx6q.c
++++ b/arch/arm/mach-imx/mach-imx6q.c
+@@ -25,6 +25,7 @@
+ #include <linux/of_irq.h>
+ #include <linux/of_platform.h>
+ #include <linux/opp.h>
++#include <linux/pci.h>
+ #include <linux/phy.h>
+ #include <linux/regmap.h>
+ #include <linux/micrel_phy.h>
+@@ -145,6 +146,42 @@ static void __init imx6q_sabrelite_init(
+ imx6q_sabrelite_cko1_setup();
+ }
+
++/*
++ * fixup for PEX 8909 bridge to configure GPIO1-7 as output High
++ * as they are used for slots1-7 PERST#
++ */
++static void mx6_ventana_pciesw_early_fixup(struct pci_dev *dev)
++{
++ u32 dw;
++
++ if (!of_machine_is_compatible("gw,ventana"))
++ return;
++
++ if (dev->devfn != 0)
++ return;
++
++ pci_read_config_dword(dev, 0x62c, &dw);
++ 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);
++
++ mdelay(100);
++}
++DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8609,
++ mx6_ventana_pciesw_early_fixup);
++DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8606,
++ mx6_ventana_pciesw_early_fixup);
++DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8604,
++ mx6_ventana_pciesw_early_fixup);
++
++static void __init imx6q_ventana_init(void)
++{
++ imx6q_sabrelite_cko1_setup();
++}
++
+ static void __init imx6q_1588_init(void)
+ {
+ struct regmap *gpr;
+@@ -163,6 +200,9 @@ static void __init imx6q_usb_init(void)
+
+ static void __init imx6q_init_machine(void)
+ {
++ if (of_machine_is_compatible("gw,ventana"))
++ imx6q_ventana_init();
++
+ if (of_machine_is_compatible("fsl,imx6q-sabrelite"))
+ imx6q_sabrelite_init();
+