imx6: split out ventana init patch from devicetree

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38423 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
Luka Perkov
2013-10-16 03:25:54 +00:00
parent dc0297e21f
commit 0662f840d1
2 changed files with 70 additions and 59 deletions

View File

@@ -133,62 +133,3 @@
usbotg {
pinctrl_usbotg_1: usbotggrp-1 {
--- 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 +146,38 @@ 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(1);
+}
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8609,
+ 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 +196,9 @@ 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();

View File

@@ -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();