From 6d1a7c02286b4db08949f6a293433d16b3c96b00 Mon Sep 17 00:00:00 2001 From: Richard Zhu Date: Tue, 15 Jul 2014 12:56:43 +0800 Subject: ENGR00323143 pcie:can't be enabled in both uboot and kernel imx6 q/dl/solo pcie would be failed to work properly in kernel, if the pcie module is iniialized/enumerated both in uboot and linux kernel. rootcause:imx6 q/dl/solo pcie don't have the reset mechanism. it is only be RESET by the POR. So, the pcie module only be initialized/enumerated once in one POR. Set to use pcie in kernel defaultly, mask the pcie config here. Remove the mask freely, if the uboot pcie functions, rather than the kernel's, are required. Signed-off-by: Richard Zhu (cherry picked from commit 30d6a9abccb9c5424fce9dec2085db0ac21579b1) --- include/configs/mx6sabresd.h | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'include/configs/mx6sabresd.h') diff --git a/include/configs/mx6sabresd.h b/include/configs/mx6sabresd.h index ed85b84..9f3fae7 100644 --- a/include/configs/mx6sabresd.h +++ b/include/configs/mx6sabresd.h @@ -39,7 +39,18 @@ #define CONFIG_SF_DEFAULT_CS (0|(IMX_GPIO_NR(4, 9)<<8)) #endif -#define CONFIG_CMD_PCI +/* + * imx6 q/dl/solo pcie would be failed to work properly in kernel, if + * the pcie module is iniialized/enumerated both in uboot and linux + * kernel. + * rootcause:imx6 q/dl/solo pcie don't have the reset mechanism. + * it is only be RESET by the POR. So, the pcie module only be + * initialized/enumerated once in one POR. + * Set to use pcie in kernel defaultly, mask the pcie config here. + * Remove the mask freely, if the uboot pcie functions, rather than + * the kernel's, are required. + */ +/* #define CONFIG_CMD_PCI */ #ifdef CONFIG_CMD_PCI #define CONFIG_PCI #define CONFIG_PCI_PNP -- cgit v1.1