From mboxrd@z Thu Jan 1 00:00:00 1970 From: catalin.marinas@arm.com (Catalin Marinas) Date: Fri, 7 Dec 2012 21:06:30 +0000 Subject: [PATCH 5/7] arm64: ARMv8 RTSM model (SoC) support In-Reply-To: <1354914392-9634-1-git-send-email-catalin.marinas@arm.com> References: <1354914392-9634-1-git-send-email-catalin.marinas@arm.com> Message-ID: <1354914392-9634-6-git-send-email-catalin.marinas@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org This patch introduces support for the ARMv8 software model (Versatile Express platform). The aim is to reduce the SoC code to a single file and pass the driver specific data in FDT. Single kernel Image file for multiple SoCs is mandatory. Signed-off-by: Catalin Marinas --- arch/arm64/Kconfig | 3 ++ arch/arm64/configs/vexpress_defconfig | 90 +++++++++++++++++++++++++++++++++++ arch/arm64/platforms/Kconfig | 11 +++++ arch/arm64/platforms/Makefile | 1 + arch/arm64/platforms/vexpress.c | 38 +++++++++++++++ drivers/net/ethernet/smsc/Kconfig | 4 +- 6 files changed, 145 insertions(+), 2 deletions(-) create mode 100644 arch/arm64/configs/vexpress_defconfig create mode 100644 arch/arm64/platforms/vexpress.c diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index e58a35a..d66a444 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -91,6 +91,9 @@ config SWIOTLB config IOMMU_HELPER def_bool SWIOTLB +config GENERIC_GPIO + bool + source "init/Kconfig" source "kernel/Kconfig.freezer" diff --git a/arch/arm64/configs/vexpress_defconfig b/arch/arm64/configs/vexpress_defconfig new file mode 100644 index 0000000..c1ee86d --- /dev/null +++ b/arch/arm64/configs/vexpress_defconfig @@ -0,0 +1,90 @@ +# CONFIG_LOCALVERSION_AUTO is not set +# CONFIG_SWAP is not set +CONFIG_SYSVIPC=y +CONFIG_POSIX_MQUEUE=y +CONFIG_NO_HZ=y +CONFIG_HIGH_RES_TIMERS=y +CONFIG_BSD_PROCESS_ACCT=y +CONFIG_BSD_PROCESS_ACCT_V3=y +CONFIG_IKCONFIG=y +CONFIG_IKCONFIG_PROC=y +CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_UTS_NS is not set +# CONFIG_IPC_NS is not set +# CONFIG_PID_NS is not set +# CONFIG_NET_NS is not set +CONFIG_SCHED_AUTOGROUP=y +CONFIG_BLK_DEV_INITRD=y +CONFIG_KALLSYMS_ALL=y +# CONFIG_COMPAT_BRK is not set +CONFIG_PROFILING=y +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +# CONFIG_BLK_DEV_BSG is not set +# CONFIG_IOSCHED_DEADLINE is not set +CONFIG_ARCH_VEXPRESS=y +CONFIG_SMP=y +CONFIG_PREEMPT_VOLUNTARY=y +CONFIG_CMDLINE="console=ttyAMA0" +# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set +CONFIG_COMPAT=y +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_INET=y +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +CONFIG_IP_PNP_BOOTP=y +# CONFIG_INET_LRO is not set +# CONFIG_IPV6 is not set +# CONFIG_WIRELESS is not set +CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" +CONFIG_DEVTMPFS=y +# CONFIG_BLK_DEV is not set +CONFIG_SCSI=y +# CONFIG_SCSI_PROC_FS is not set +CONFIG_BLK_DEV_SD=y +# CONFIG_SCSI_LOWLEVEL is not set +CONFIG_NETDEVICES=y +# CONFIG_NET_CADENCE is not set +CONFIG_SMC91X=y +# CONFIG_WLAN is not set +CONFIG_INPUT_EVDEV=y +# CONFIG_SERIO_I8042 is not set +# CONFIG_SERIO_SERPORT is not set +CONFIG_SERIO_AMBAKMI=y +CONFIG_LEGACY_PTY_COUNT=16 +CONFIG_SERIAL_AMBA_PL011=y +CONFIG_SERIAL_AMBA_PL011_CONSOLE=y +# CONFIG_HW_RANDOM is not set +# CONFIG_HWMON is not set +CONFIG_FB=y +# CONFIG_VGA_CONSOLE is not set +CONFIG_FRAMEBUFFER_CONSOLE=y +CONFIG_LOGO=y +# CONFIG_LOGO_LINUX_MONO is not set +# CONFIG_LOGO_LINUX_VGA16 is not set +# CONFIG_USB_SUPPORT is not set +# CONFIG_IOMMU_SUPPORT is not set +CONFIG_EXT2_FS=y +CONFIG_EXT3_FS=y +# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +# CONFIG_EXT3_FS_XATTR is not set +CONFIG_FUSE_FS=y +CONFIG_CUSE=y +CONFIG_VFAT_FS=y +CONFIG_TMPFS=y +# CONFIG_MISC_FILESYSTEMS is not set +CONFIG_NFS_FS=y +CONFIG_ROOT_NFS=y +CONFIG_NLS_CODEPAGE_437=y +CONFIG_NLS_ISO8859_1=y +CONFIG_MAGIC_SYSRQ=y +CONFIG_DEBUG_FS=y +CONFIG_DEBUG_KERNEL=y +# CONFIG_SCHED_DEBUG is not set +CONFIG_DEBUG_INFO=y +CONFIG_RCU_CPU_STALL_TIMEOUT=60 +# CONFIG_FTRACE is not set +CONFIG_ATOMIC64_SELFTEST=y +CONFIG_DEBUG_ERRORS=y diff --git a/arch/arm64/platforms/Kconfig b/arch/arm64/platforms/Kconfig index e69de29..3533d71 100644 --- a/arch/arm64/platforms/Kconfig +++ b/arch/arm64/platforms/Kconfig @@ -0,0 +1,11 @@ +config ARCH_VEXPRESS + bool "ARMv8 software model (Versatile Express)" + select ARCH_REQUIRE_GPIOLIB + select ARM_AMBA + select ARM_GIC + select COMMON_CLK_VERSATILE + select GENERIC_GPIO + select VEXPRESS_CONFIG + help + This enables support for the ARMv8 software model (Versatile + Express). diff --git a/arch/arm64/platforms/Makefile b/arch/arm64/platforms/Makefile index e69de29..2e3fcba 100644 --- a/arch/arm64/platforms/Makefile +++ b/arch/arm64/platforms/Makefile @@ -0,0 +1 @@ +obj-$(CONFIG_ARCH_VEXPRESS) := vexpress.o diff --git a/arch/arm64/platforms/vexpress.c b/arch/arm64/platforms/vexpress.c new file mode 100644 index 0000000..a484aac --- /dev/null +++ b/arch/arm64/platforms/vexpress.c @@ -0,0 +1,38 @@ +/* + * ARMv8 software model (Versatile Express) support + * + * Copyright (C) 2012 ARM Ltd. + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include + +static const char *vexpress_dt_match[] __initdata = { + "arm,vexpress", + NULL, +}; + +static int __init vexpress_init(void) +{ + if (!of_flat_dt_match(of_get_flat_dt_root(), vexpress_dt_match)) + return 0; + + vexpress_sysreg_of_early_init(); + vexpress_clk_of_init(); + + return 0; +} +arch_initcall(vexpress_init); diff --git a/drivers/net/ethernet/smsc/Kconfig b/drivers/net/ethernet/smsc/Kconfig index 5a689af..bb4c167 100644 --- a/drivers/net/ethernet/smsc/Kconfig +++ b/drivers/net/ethernet/smsc/Kconfig @@ -5,7 +5,7 @@ config NET_VENDOR_SMSC bool "SMC (SMSC)/Western Digital devices" default y - depends on ARM || ISA || MAC || ARM || MIPS || M32R || SUPERH || \ + depends on ARM || ISA || MAC || ARM64 || MIPS || M32R || SUPERH || \ BLACKFIN || MN10300 || COLDFIRE || PCI || PCMCIA ---help--- If you have a network (Ethernet) card belonging to this class, say Y @@ -40,7 +40,7 @@ config SMC91X select NET_CORE select MII depends on (ARM || M32R || SUPERH || MIPS || BLACKFIN || \ - MN10300 || COLDFIRE) + MN10300 || COLDFIRE || ARM64) ---help--- This is a driver for SMC's 91x series of Ethernet chipsets, including the SMC91C94 and the SMC91C111. Say Y if you want it