diff options
Diffstat (limited to 'arch/arm/mach-clps711x')
| -rw-r--r-- | arch/arm/mach-clps711x/Kconfig | 53 | ||||
| -rw-r--r-- | arch/arm/mach-clps711x/Makefile | 14 | ||||
| -rw-r--r-- | arch/arm/mach-clps711x/Makefile.boot | 5 | ||||
| -rw-r--r-- | arch/arm/mach-clps711x/board-dt.c | 82 | ||||
| -rw-r--r-- | arch/arm/mach-clps711x/common.c | 4 |
5 files changed, 100 insertions, 58 deletions
diff --git a/arch/arm/mach-clps711x/Kconfig b/arch/arm/mach-clps711x/Kconfig index f711498c1..61284b938 100644 --- a/arch/arm/mach-clps711x/Kconfig +++ b/arch/arm/mach-clps711x/Kconfig @@ -1,38 +1,15 @@ -if ARCH_CLPS711X - -menu "CLPS711X/EP721X/EP731X Implementations" - -config ARCH_AUTCPU12 - bool "AUTCPU12" - help - Say Y if you intend to run the kernel on the autronix autcpu12 - board. This board is based on a Cirrus Logic CS89712. - -config ARCH_CDB89712 - bool "CDB89712" - help - This is an evaluation board from Cirrus for the CS89712 processor. - The board includes 2 serial ports, Ethernet, IRDA, and expansion - headers. It comes with 16 MB SDRAM and 8 MB flash ROM. - -config ARCH_CLEP7312 - bool "CLEP7312" - help - Boards based on the Cirrus Logic 7212/7312 chips. - -config ARCH_EDB7211 - bool "EDB7211" - select ARCH_HAS_HOLES_MEMORYMODEL - help - Say Y here if you intend to run this kernel on a Cirrus Logic EDB-7211 - evaluation board. - -config ARCH_P720T - bool "P720T" - help - Say Y here if you intend to run this kernel on the ARM Prospector - 720T. - -endmenu - -endif +menuconfig ARCH_CLPS711X + bool "Cirrus Logic EP721x/EP731x-based" + depends on ARCH_MULTI_V4T + select AUTO_ZRELADDR + select CLKSRC_OF + select CLPS711X_TIMER + select COMMON_CLK + select CPU_ARM720T + select GENERIC_CLOCKEVENTS + select GPIOLIB + select MFD_SYSCON + select OF_IRQ + select USE_OF + help + Select this if you use ARMv4T Cirrus Logic chips. diff --git a/arch/arm/mach-clps711x/Makefile b/arch/arm/mach-clps711x/Makefile index f04151efd..bd0b7b5d6 100644 --- a/arch/arm/mach-clps711x/Makefile +++ b/arch/arm/mach-clps711x/Makefile @@ -1,13 +1 @@ -# -# Makefile for the linux kernel. -# - -# Object file lists. - -obj-y := common.o devices.o - -obj-$(CONFIG_ARCH_AUTCPU12) += board-autcpu12.o -obj-$(CONFIG_ARCH_CDB89712) += board-cdb89712.o -obj-$(CONFIG_ARCH_CLEP7312) += board-clep7312.o -obj-$(CONFIG_ARCH_EDB7211) += board-edb7211.o -obj-$(CONFIG_ARCH_P720T) += board-p720t.o +obj-y += board-dt.o diff --git a/arch/arm/mach-clps711x/Makefile.boot b/arch/arm/mach-clps711x/Makefile.boot index eba77d35a..e69de29bb 100644 --- a/arch/arm/mach-clps711x/Makefile.boot +++ b/arch/arm/mach-clps711x/Makefile.boot @@ -1,5 +0,0 @@ -# The standard locations for stuff on CLPS711x type processors -params_phys-y := 0xc0000100 -# Should probably have some agreement on these... -initrd_phys-$(CONFIG_ARCH_P720T) := 0xc0400000 -initrd_phys-$(CONFIG_ARCH_CDB89712) := 0x00700000 diff --git a/arch/arm/mach-clps711x/board-dt.c b/arch/arm/mach-clps711x/board-dt.c new file mode 100644 index 000000000..ee1f83b1a --- /dev/null +++ b/arch/arm/mach-clps711x/board-dt.c @@ -0,0 +1,82 @@ +/* + * Author: Alexander Shiyan <shc_work@mail.ru>, 2016 + * + * 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; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/io.h> +#include <linux/of_fdt.h> +#include <linux/platform_device.h> +#include <linux/random.h> +#include <linux/sizes.h> + +#include <linux/mfd/syscon/clps711x.h> + +#include <asm/system_info.h> +#include <asm/system_misc.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> + +#define CLPS711X_VIRT_BASE IOMEM(0xfeff4000) +#define CLPS711X_PHYS_BASE (0x80000000) +# define SYSFLG1 (0x0140) +# define HALT (0x0800) +# define UNIQID (0x2440) +# define RANDID0 (0x2700) +# define RANDID1 (0x2704) +# define RANDID2 (0x2708) +# define RANDID3 (0x270c) + +static struct map_desc clps711x_io_desc __initdata = { + .virtual = (unsigned long)CLPS711X_VIRT_BASE, + .pfn = __phys_to_pfn(CLPS711X_PHYS_BASE), + .length = 48 * SZ_1K, + .type = MT_DEVICE, +}; + +static void __init clps711x_map_io(void) +{ + iotable_init(&clps711x_io_desc, 1); +} + +static const struct resource clps711x_cpuidle_res = + DEFINE_RES_MEM(CLPS711X_PHYS_BASE + HALT, SZ_128); + +static void __init clps711x_init(void) +{ + u32 id[5]; + + id[0] = readl(CLPS711X_VIRT_BASE + UNIQID); + id[1] = readl(CLPS711X_VIRT_BASE + RANDID0); + id[2] = readl(CLPS711X_VIRT_BASE + RANDID1); + id[3] = readl(CLPS711X_VIRT_BASE + RANDID2); + id[4] = readl(CLPS711X_VIRT_BASE + RANDID3); + system_rev = SYSFLG1_VERID(readl(CLPS711X_VIRT_BASE + SYSFLG1)); + + add_device_randomness(id, sizeof(id)); + + system_serial_low = id[0]; + + platform_device_register_simple("clps711x-cpuidle", PLATFORM_DEVID_NONE, + &clps711x_cpuidle_res, 1); +} + +static void clps711x_restart(enum reboot_mode mode, const char *cmd) +{ + soft_restart(0); +} + +static const char *clps711x_compat[] __initconst = { + "cirrus,ep7209", + NULL +}; + +DT_MACHINE_START(CLPS711X_DT, "Cirrus Logic CLPS711X (Device Tree Support)") + .dt_compat = clps711x_compat, + .map_io = clps711x_map_io, + .init_late = clps711x_init, + .restart = clps711x_restart, +MACHINE_END diff --git a/arch/arm/mach-clps711x/common.c b/arch/arm/mach-clps711x/common.c index 671acc5a3..6466da8f3 100644 --- a/arch/arm/mach-clps711x/common.c +++ b/arch/arm/mach-clps711x/common.c @@ -37,8 +37,8 @@ static struct map_desc clps711x_io_desc[] __initdata = { { .virtual = (unsigned long)CLPS711X_VIRT_BASE, .pfn = __phys_to_pfn(CLPS711X_PHYS_BASE), - .length = SZ_64K, - .type = MT_DEVICE + .length = 48 * SZ_1K, + .type = MT_DEVICE, } }; |