diff options
Diffstat (limited to 'target/linux/imx6/patches-3.14/208-ventana-plx-allow-override-gpio-output-mask.patch')
| -rw-r--r-- | target/linux/imx6/patches-3.14/208-ventana-plx-allow-override-gpio-output-mask.patch | 58 |
1 files changed, 0 insertions, 58 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 deleted file mode 100644 index 7c2d1b0..0000000 --- a/target/linux/imx6/patches-3.14/208-ventana-plx-allow-override-gpio-output-mask.patch +++ /dev/null @@ -1,58 +0,0 @@ -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, |