ARM: mach-shmobile: SH-Mobile G3 support.
This adds preliminary support for the SH-Mobile G-series. The SH-Mobile G-series is a series of ARM/SH multi-core CPUs that aside from the ARM MPU are primarily composed of existing SH IP blocks. This includes initial support for the SH7367 (SH-Mobile G3) CPU and the G3EVM reference board. Only timer, serial console, and NOR flash are supported at this point. Patches for the interrupt controller, pinmux support, clock framework and runtime pm will be submitted as feature patches on top of this. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>hifive-unleashed-5.1
Magnus Damm
Paul Mundt
parent
9e9622d1a0
commit
c793c1b0c8
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@ -584,6 +584,11 @@ config ARCH_MSM
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interface to the ARM9 modem processor which runs the baseband stack
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and controls some vital subsystems (clock and power control, etc).
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config ARCH_SHMOBILE
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bool "Renesas SH-Mobile"
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help
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Support for Renesas's SH-Mobile ARM platforms
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config ARCH_RPC
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bool "RiscPC"
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select ARCH_ACORN
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@ -822,6 +827,8 @@ source "arch/arm/mach-s3c6400/Kconfig"
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source "arch/arm/mach-s3c6410/Kconfig"
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endif
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source "arch/arm/mach-shmobile/Kconfig"
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source "arch/arm/plat-stmp3xxx/Kconfig"
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if ARCH_S5PC1XX
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@ -165,6 +165,7 @@ machine-$(CONFIG_ARCH_S3C64XX) := s3c6400 s3c6410
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machine-$(CONFIG_ARCH_S5PC1XX) := s5pc100
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machine-$(CONFIG_ARCH_SA1100) := sa1100
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machine-$(CONFIG_ARCH_SHARK) := shark
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machine-$(CONFIG_ARCH_SHMOBILE) := shmobile
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machine-$(CONFIG_ARCH_STMP378X) := stmp378x
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machine-$(CONFIG_ARCH_STMP37XX) := stmp37xx
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machine-$(CONFIG_ARCH_U300) := u300
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@ -0,0 +1,53 @@
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if ARCH_SHMOBILE
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comment "SH-Mobile System Type"
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config ARCH_SH7367
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bool "SH-Mobile G3 (SH7367)"
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select CPU_V6
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select HAVE_CLK
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select COMMON_CLKDEV
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select GENERIC_TIME
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select GENERIC_CLOCKEVENTS
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comment "SH-Mobile Board Type"
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config MACH_G3EVM
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bool "G3EVM board"
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depends on ARCH_SH7367
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comment "SH-Mobile System Configuration"
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menu "Memory configuration"
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config MEMORY_START
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hex "Physical memory start address"
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default "0x50000000" if MACH_G3EVM
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default "0x00000000"
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---help---
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Tweak this only when porting to a new machine which does not
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already have a defconfig. Changing it from the known correct
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value on any of the known systems will only lead to disaster.
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config MEMORY_SIZE
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hex "Physical memory size"
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default "0x08000000" if MACH_G3EVM
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default "0x04000000"
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help
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This sets the default memory size assumed by your kernel. It can
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be overridden as normal by the 'mem=' argument on the kernel command
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line.
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endmenu
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menu "Timer and clock configuration"
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config SH_TIMER_CMT
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bool "CMT timer driver"
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default y
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help
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This enables build of the CMT timer driver.
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endmenu
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endif
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@ -0,0 +1,12 @@
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#
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# Makefile for the linux kernel.
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#
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# Common objects
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obj-y := timer.o
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# CPU objects
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obj-$(CONFIG_ARCH_SH7367) += setup-sh7367.o clock-sh7367.o
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# Board objects
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obj-$(CONFIG_MACH_G3EVM) += board-g3evm.o
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@ -0,0 +1,9 @@
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__ZRELADDR := $(shell /bin/bash -c 'printf "0x%08x" \
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$$[$(CONFIG_MEMORY_START) + 0x8000]')
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zreladdr-y := $(__ZRELADDR)
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# Unsupported legacy stuff
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#
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#params_phys-y (Instead: Pass atags pointer in r2)
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#initrd_phys-y (Instead: Use compiled-in initramfs)
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@ -0,0 +1,127 @@
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/*
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* G3EVM board support
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*
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* Copyright (C) 2010 Magnus Damm
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* Copyright (C) 2008 Yoshihiro Shimoda
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <linux/platform_device.h>
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#include <linux/delay.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/physmap.h>
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#include <linux/io.h>
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#include <mach/common.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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static struct mtd_partition nor_flash_partitions[] = {
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{
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.name = "loader",
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.offset = 0x00000000,
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.size = 512 * 1024,
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},
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{
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.name = "bootenv",
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.offset = MTDPART_OFS_APPEND,
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.size = 512 * 1024,
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},
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{
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.name = "kernel_ro",
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.offset = MTDPART_OFS_APPEND,
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.size = 8 * 1024 * 1024,
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.mask_flags = MTD_WRITEABLE,
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},
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{
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.name = "kernel",
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.offset = MTDPART_OFS_APPEND,
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.size = 8 * 1024 * 1024,
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},
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{
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.name = "data",
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.offset = MTDPART_OFS_APPEND,
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.size = MTDPART_SIZ_FULL,
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},
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};
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static struct physmap_flash_data nor_flash_data = {
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.width = 2,
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.parts = nor_flash_partitions,
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.nr_parts = ARRAY_SIZE(nor_flash_partitions),
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};
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static struct resource nor_flash_resources[] = {
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[0] = {
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.start = 0x00000000,
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.end = 0x08000000 - 1,
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.flags = IORESOURCE_MEM,
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}
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};
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static struct platform_device nor_flash_device = {
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.name = "physmap-flash",
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.dev = {
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.platform_data = &nor_flash_data,
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},
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.num_resources = ARRAY_SIZE(nor_flash_resources),
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.resource = nor_flash_resources,
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};
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static struct platform_device *g3evm_devices[] __initdata = {
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&nor_flash_device,
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};
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static struct map_desc g3evm_io_desc[] __initdata = {
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/* create a 1:1 entity map for 0xe6xxxxxx
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* used by CPGA, INTC and PFC.
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*/
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{
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.virtual = 0xe6000000,
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.pfn = __phys_to_pfn(0xe6000000),
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.length = 256 << 20,
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.type = MT_DEVICE_NONSHARED
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},
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};
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static void __init g3evm_map_io(void)
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{
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iotable_init(g3evm_io_desc, ARRAY_SIZE(g3evm_io_desc));
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/* setup early devices and clocks here as well */
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sh7367_add_early_devices();
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sh7367_clock_init();
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}
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static void __init g3evm_init(void)
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{
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sh7367_add_standard_devices();
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platform_add_devices(g3evm_devices, ARRAY_SIZE(g3evm_devices));
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}
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MACHINE_START(G3EVM, "g3evm")
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.phys_io = 0xe6000000,
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.io_pg_offst = ((0xe6000000) >> 18) & 0xfffc,
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.map_io = g3evm_map_io,
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.init_irq = sh7367_init_irq,
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.init_machine = g3evm_init,
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.timer = &shmobile_timer,
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MACHINE_END
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@ -0,0 +1,89 @@
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/*
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* Preliminary clock framework support for sh7367
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*
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* Copyright (C) 2010 Magnus Damm
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/list.h>
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#include <linux/clk.h>
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struct clk {
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const char *name;
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unsigned long rate;
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};
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#include <asm/clkdev.h>
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int __clk_get(struct clk *clk)
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{
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return 1;
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}
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EXPORT_SYMBOL(__clk_get);
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void __clk_put(struct clk *clk)
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{
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}
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EXPORT_SYMBOL(__clk_put);
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int clk_enable(struct clk *clk)
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{
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return 0;
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}
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EXPORT_SYMBOL(clk_enable);
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void clk_disable(struct clk *clk)
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{
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}
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EXPORT_SYMBOL(clk_disable);
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unsigned long clk_get_rate(struct clk *clk)
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{
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return clk ? clk->rate : 0;
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}
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EXPORT_SYMBOL(clk_get_rate);
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/* a static peripheral clock for now - enough to get sh-sci working */
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static struct clk peripheral_clk = {
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.name = "peripheral_clk",
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.rate = 48000000,
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};
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/* a static rclk for now - enough to get sh_cmt working */
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static struct clk r_clk = {
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.name = "r_clk",
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.rate = 32768,
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};
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static struct clk_lookup lookups[] = {
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{
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.clk = &peripheral_clk,
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}, {
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.clk = &r_clk,
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}
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};
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void __init sh7367_clock_init(void)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(lookups); i++) {
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lookups[i].con_id = lookups[i].clk->name;
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clkdev_add(&lookups[i]);
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}
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}
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@ -0,0 +1,7 @@
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#ifndef __ASM_MACH_CLKDEV_H
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#define __ASM_MACH_CLKDEV_H
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int __clk_get(struct clk *clk);
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void __clk_put(struct clk *clk);
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#endif /* __ASM_MACH_CLKDEV_H */
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@ -0,0 +1,11 @@
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#ifndef __ARCH_MACH_COMMON_H
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#define __ARCH_MACH_COMMON_H
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extern struct sys_timer shmobile_timer;
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extern void sh7367_init_irq(void);
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extern void sh7367_add_early_devices(void);
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extern void sh7367_add_standard_devices(void);
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extern void sh7367_clock_init(void);
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#endif /* __ARCH_MACH_COMMON_H */
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@ -0,0 +1 @@
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/* empty */
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@ -0,0 +1,39 @@
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/*
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* Copyright (C) 2008 Renesas Solutions Corp.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <mach/hardware.h>
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#include <mach/irqs.h>
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.macro disable_fiq
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.endm
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.macro get_irqnr_preamble, base, tmp
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.endm
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.macro arch_ret_to_user, tmp1, tmp2
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.endm
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.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
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ldr \base, =INTFLGA
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ldr \irqnr, [\base]
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cmp \irqnr, #0
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beq 1000f
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/* intevt to irq number */
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lsr \irqnr, \irqnr, #0x5
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subs \irqnr, \irqnr, #16
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1000:
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.endm
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@ -0,0 +1 @@
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/* empty */
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@ -0,0 +1,7 @@
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#ifndef __ASM_MACH_HARDWARE_H
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#define __ASM_MACH_HARDWARE_H
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/* INTFLGA register - used by low level interrupt code in entry-macro.S */
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#define INTFLGA 0xe6980018
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#endif /* __ASM_MACH_HARDWARE_H */
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@ -0,0 +1,9 @@
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#ifndef __ASM_MACH_IO_H
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#define __ASM_MACH_IO_H
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#define IO_SPACE_LIMIT 0xffffffff
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#define __io(a) ((void __iomem *)(a))
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#define __mem_pci(a) (a)
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#endif /* __ASM_MACH_IO_H */
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@ -0,0 +1,10 @@
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#ifndef __ASM_MACH_IRQS_H
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#define __ASM_MACH_IRQS_H
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#define NR_IRQS 512
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#define NR_IRQS_LEGACY 8
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#define evt2irq(evt) (((evt) >> 5) - 16)
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#define irq2evt(irq) (((irq) + 16) << 5)
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#endif /* __ASM_MACH_IRQS_H */
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@ -0,0 +1,7 @@
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#ifndef __ASM_MACH_MEMORY_H
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#define __ASM_MACH_MEMORY_H
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#define PHYS_OFFSET UL(CONFIG_MEMORY_START)
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#define MEM_SIZE UL(CONFIG_MEMORY_SIZE)
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#endif /* __ASM_MACH_MEMORY_H */
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@ -0,0 +1,14 @@
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#ifndef __ASM_ARCH_SYSTEM_H
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#define __ASM_ARCH_SYSTEM_H
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static inline void arch_idle(void)
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{
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cpu_do_idle();
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}
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static inline void arch_reset(char mode, const char *cmd)
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{
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cpu_reset(0);
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}
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#endif
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@ -0,0 +1,6 @@
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#ifndef __ASM_MACH_TIMEX_H
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#define __ASM_MACH_TIMEX_H
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#define CLOCK_TICK_RATE 1193180 /* unused i8253 PIT value */
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#endif /* __ASM_MACH_TIMEX_H */
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@ -0,0 +1,21 @@
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#ifndef __ASM_MACH_UNCOMPRESS_H
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#define __ASM_MACH_UNCOMPRESS_H
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/*
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* This does not append a newline
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*/
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static void putc(int c)
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{
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}
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static inline void flush(void)
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{
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}
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static void arch_decomp_setup(void)
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{
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}
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#define arch_decomp_wdog()
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#endif /* __ASM_MACH_UNCOMPRESS_H */
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@ -0,0 +1,6 @@
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#ifndef __ASM_MACH_VMALLOC_H
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#define __ASM_MACH_VMALLOC_H
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#define VMALLOC_END (PAGE_OFFSET + 0x24000000)
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#endif /* __ASM_MACH_VMALLOC_H */
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@ -0,0 +1,241 @@
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/*
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* sh7367 processor support
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*
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* Copyright (C) 2010 Magnus Damm
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* Copyright (C) 2008 Yoshihiro Shimoda
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||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; version 2 of the License.
|
||||
*
|
||||
* 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, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/irq.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/input.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/serial_sci.h>
|
||||
#include <linux/sh_intc.h>
|
||||
#include <linux/sh_timer.h>
|
||||
#include <mach/hardware.h>
|
||||
#include <asm/mach-types.h>
|
||||
#include <asm/mach/arch.h>
|
||||
|
||||
static struct plat_sci_port scif0_platform_data = {
|
||||
.mapbase = 0xe6c40000,
|
||||
.flags = UPF_BOOT_AUTOCONF,
|
||||
.type = PORT_SCIF,
|
||||
.irqs = { 80, 80, 80, 80 },
|
||||
};
|
||||
|
||||
static struct platform_device scif0_device = {
|
||||
.name = "sh-sci",
|
||||
.id = 0,
|
||||
.dev = {
|
||||
.platform_data = &scif0_platform_data,
|
||||
},
|
||||
};
|
||||
|
||||
static struct plat_sci_port scif1_platform_data = {
|
||||
.mapbase = 0xe6c50000,
|
||||
.flags = UPF_BOOT_AUTOCONF,
|
||||
.type = PORT_SCIF,
|
||||
.irqs = { 81, 81, 81, 81 },
|
||||
};
|
||||
|
||||
static struct platform_device scif1_device = {
|
||||
.name = "sh-sci",
|
||||
.id = 1,
|
||||
.dev = {
|
||||
.platform_data = &scif1_platform_data,
|
||||
},
|
||||
};
|
||||
|
||||
static struct plat_sci_port scif2_platform_data = {
|
||||
.mapbase = 0xe6c60000,
|
||||
.flags = UPF_BOOT_AUTOCONF,
|
||||
.type = PORT_SCIF,
|
||||
.irqs = { 82, 82, 82, 82 },
|
||||
};
|
||||
|
||||
static struct platform_device scif2_device = {
|
||||
.name = "sh-sci",
|
||||
.id = 2,
|
||||
.dev = {
|
||||
.platform_data = &scif2_platform_data,
|
||||
},
|
||||
};
|
||||
|
||||
static struct plat_sci_port scif3_platform_data = {
|
||||
.mapbase = 0xe6c70000,
|
||||
.flags = UPF_BOOT_AUTOCONF,
|
||||
.type = PORT_SCIF,
|
||||
.irqs = { 83, 83, 83, 83 },
|
||||
};
|
||||
|
||||
static struct platform_device scif3_device = {
|
||||
.name = "sh-sci",
|
||||
.id = 3,
|
||||
.dev = {
|
||||
.platform_data = &scif3_platform_data,
|
||||
},
|
||||
};
|
||||
|
||||
static struct plat_sci_port scif4_platform_data = {
|
||||
.mapbase = 0xe6c80000,
|
||||
.flags = UPF_BOOT_AUTOCONF,
|
||||
.type = PORT_SCIF,
|
||||
.irqs = { 89, 89, 89, 89 },
|
||||
};
|
||||
|
||||
static struct platform_device scif4_device = {
|
||||
.name = "sh-sci",
|
||||
.id = 4,
|
||||
.dev = {
|
||||
.platform_data = &scif4_platform_data,
|
||||
},
|
||||
};
|
||||
|
||||
static struct plat_sci_port scif5_platform_data = {
|
||||
.mapbase = 0xe6cb0000,
|
||||
.flags = UPF_BOOT_AUTOCONF,
|
||||
.type = PORT_SCIF,
|
||||
.irqs = { 90, 90, 90, 90 },
|
||||
};
|
||||
|
||||
static struct platform_device scif5_device = {
|
||||
.name = "sh-sci",
|
||||
.id = 5,
|
||||
.dev = {
|
||||
.platform_data = &scif5_platform_data,
|
||||
},
|
||||
};
|
||||
|
||||
static struct plat_sci_port scif6_platform_data = {
|
||||
.mapbase = 0xe6c30000,
|
||||
.flags = UPF_BOOT_AUTOCONF,
|
||||
.type = PORT_SCIF,
|
||||
.irqs = { 91, 91, 91, 91 },
|
||||
};
|
||||
|
||||
static struct platform_device scif6_device = {
|
||||
.name = "sh-sci",
|
||||
.id = 6,
|
||||
.dev = {
|
||||
.platform_data = &scif6_platform_data,
|
||||
},
|
||||
};
|
||||
|
||||
static struct sh_timer_config cmt10_platform_data = {
|
||||
.name = "CMT10",
|
||||
.channel_offset = 0x10,
|
||||
.timer_bit = 0,
|
||||
.clk = "r_clk",
|
||||
.clockevent_rating = 125,
|
||||
.clocksource_rating = 125,
|
||||
};
|
||||
|
||||
static struct resource cmt10_resources[] = {
|
||||
[0] = {
|
||||
.name = "CMT10",
|
||||
.start = 0xe6138010,
|
||||
.end = 0xe613801b,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
[1] = {
|
||||
.start = 72,
|
||||
.flags = IORESOURCE_IRQ,
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_device cmt10_device = {
|
||||
.name = "sh_cmt",
|
||||
.id = 10,
|
||||
.dev = {
|
||||
.platform_data = &cmt10_platform_data,
|
||||
},
|
||||
.resource = cmt10_resources,
|
||||
.num_resources = ARRAY_SIZE(cmt10_resources),
|
||||
};
|
||||
|
||||
static struct platform_device *sh7367_early_devices[] __initdata = {
|
||||
&scif0_device,
|
||||
&scif1_device,
|
||||
&scif2_device,
|
||||
&scif3_device,
|
||||
&scif4_device,
|
||||
&scif5_device,
|
||||
&scif6_device,
|
||||
&cmt10_device,
|
||||
};
|
||||
|
||||
void __init sh7367_add_standard_devices(void)
|
||||
{
|
||||
platform_add_devices(sh7367_early_devices,
|
||||
ARRAY_SIZE(sh7367_early_devices));
|
||||
}
|
||||
|
||||
#define SYMSTPCR2 0xe6158048
|
||||
#define SYMSTPCR2_CMT1 (1 << 29)
|
||||
|
||||
void __init sh7367_add_early_devices(void)
|
||||
{
|
||||
/* enable clock to CMT1 */
|
||||
__raw_writel(__raw_readl(SYMSTPCR2) & ~SYMSTPCR2_CMT1, SYMSTPCR2);
|
||||
|
||||
early_platform_add_devices(sh7367_early_devices,
|
||||
ARRAY_SIZE(sh7367_early_devices));
|
||||
}
|
||||
|
||||
enum {
|
||||
UNUSED = 0,
|
||||
|
||||
/* interrupt sources INTCA */
|
||||
|
||||
SCIFA0, SCIFA1, SCIFA2, SCIFA3, SCIFA4, SCIFA5, SCIFB,
|
||||
CMT10,
|
||||
};
|
||||
|
||||
static struct intc_vect vectors[] = {
|
||||
INTC_VECT(CMT10, 0xb00),
|
||||
INTC_VECT(SCIFA0, 0xc00), INTC_VECT(SCIFA1, 0xc20),
|
||||
INTC_VECT(SCIFA2, 0xc40), INTC_VECT(SCIFA3, 0xc60),
|
||||
INTC_VECT(SCIFA4, 0xd20), INTC_VECT(SCIFA5, 0xd40),
|
||||
INTC_VECT(SCIFB, 0xd60),
|
||||
};
|
||||
|
||||
static struct intc_mask_reg mask_registers[] = {
|
||||
{ 0xe6940094, 0xe69400d4, 8, /* IMR5A / IMCR5A */
|
||||
{ 0, 0, 0, 0, SCIFA3, SCIFA2, SCIFA1, SCIFA0 } },
|
||||
{ 0xe6940098, 0xe69400d8, 8, /* IMR6A / IMCR6A */
|
||||
{ SCIFB, SCIFA5, SCIFA4, 0, 0, 0, 0, 0 } },
|
||||
{ 0xe69400a4, 0xe69400e4, 8, /* IMR9A / IMCR9A */
|
||||
{ 0, 0, 0, CMT10, 0, 0, 0, 0 } },
|
||||
};
|
||||
|
||||
static struct intc_prio_reg prio_registers[] = {
|
||||
{ 0xe6940014, 0, 16, 4, /* IPRFA */ { 0, 0, 0, CMT10 } },
|
||||
{ 0xe6940018, 0, 16, 4, /* IPRGA */ { SCIFA0, SCIFA1,
|
||||
SCIFA2, SCIFA3 } },
|
||||
{ 0xe6940020, 0, 16, 4, /* IPRIA */ { 0, SCIFA4, 0, 0 } },
|
||||
{ 0xe6940034, 0, 16, 4, /* IPRNA */ { SCIFB, SCIFA5, 0, 0 } },
|
||||
};
|
||||
|
||||
static DECLARE_INTC_DESC(intc_desc, "sh7367", vectors, NULL, mask_registers,
|
||||
prio_registers, NULL);
|
||||
|
||||
void __init sh7367_init_irq(void)
|
||||
{
|
||||
register_intc_controller(&intc_desc);
|
||||
}
|
||||
|
|
@ -0,0 +1,46 @@
|
|||
/*
|
||||
* SH-Mobile Timer
|
||||
*
|
||||
* Copyright (C) 2010 Magnus Damm
|
||||
* Copyright (C) 2002 - 2009 Paul Mundt
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; version 2 of the License.
|
||||
*
|
||||
* 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, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*
|
||||
*/
|
||||
#include <linux/platform_device.h>
|
||||
#include <asm/mach/time.h>
|
||||
|
||||
static void __init shmobile_late_time_init(void)
|
||||
{
|
||||
/*
|
||||
* Make sure all compiled-in early timers register themselves.
|
||||
*
|
||||
* Run probe() for two "earlytimer" devices, these will be the
|
||||
* clockevents and clocksource devices respectively. In the event
|
||||
* that only a clockevents device is available, we -ENODEV on the
|
||||
* clocksource and the jiffies clocksource is used transparently
|
||||
* instead. No error handling is necessary here.
|
||||
*/
|
||||
early_platform_driver_register_all("earlytimer");
|
||||
early_platform_driver_probe("earlytimer", 2, 0);
|
||||
}
|
||||
|
||||
static void __init shmobile_timer_init(void)
|
||||
{
|
||||
late_time_init = shmobile_late_time_init;
|
||||
}
|
||||
|
||||
struct sys_timer shmobile_timer = {
|
||||
.init = shmobile_timer_init,
|
||||
};
|
||||
Loading…
Reference in New Issue