From mboxrd@z Thu Jan 1 00:00:00 1970 From: linux@rempel-privat.de (Oleksij Rempel) Date: Sun, 21 Sep 2014 20:41:37 +0200 Subject: [PATCH v2 1/8] ARM: add mach-asm9260 In-Reply-To: <1411324904-14881-1-git-send-email-linux@rempel-privat.de> References: <1411324904-14881-1-git-send-email-linux@rempel-privat.de> Message-ID: <1411324904-14881-2-git-send-email-linux@rempel-privat.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org it is low cost (?) SoC targeted for market in China and India which trying to compete with AT91SAM9G25. Here is some info: http://www.alphascale.com/index.asp?ics/615.html One of products: http://www.aliexpress.com/store/product/2014-hot-sales-FREE-SHIPPING-new-Purple-core-ARM9-development-board-ASM9260T-SDRAM-power-line/433637_1931495721.html Signed-off-by: Oleksij Rempel --- arch/arm/Kconfig | 14 +++++++ arch/arm/Makefile | 1 + arch/arm/mach-asm9260/Makefile | 11 ++++++ arch/arm/mach-asm9260/Makefile.boot | 2 + arch/arm/mach-asm9260/core.c | 77 +++++++++++++++++++++++++++++++++++++ 5 files changed, 105 insertions(+) create mode 100644 arch/arm/mach-asm9260/Makefile create mode 100644 arch/arm/mach-asm9260/Makefile.boot create mode 100644 arch/arm/mach-asm9260/core.c diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 5918d40..1a71feb 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -379,6 +379,20 @@ config ARCH_AT91 This enables support for systems based on Atmel AT91RM9200 and AT91SAM9* processors. +config MACH_ASM9260 + bool "Alphascale ASM9260" + select ARCH_REQUIRE_GPIOLIB + select COMMON_CLK + select IRQ_DOMAIN + select SPARSE_IRQ + select MULTI_IRQ_HANDLER + select GENERIC_IRQ_CHIP + select GENERIC_CLOCKEVENTS + select CLKSRC_MMIO + select CPU_ARM926T + help + Support for Alpascale ASM9260 based platform. + config ARCH_CLPS711X bool "Cirrus Logic CLPS711x/EP721x/EP731x-based" select ARCH_REQUIRE_GPIOLIB diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 0ce9d0f..dda8f6d 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -146,6 +146,7 @@ textofs-$(CONFIG_ARCH_AXXIA) := 0x00308000 # Machine directory name. This list is sorted alphanumerically # by CONFIG_* macro name. machine-$(CONFIG_ARCH_AT91) += at91 +machine-$(CONFIG_MACH_ASM9260) += asm9260 machine-$(CONFIG_ARCH_AXXIA) += axxia machine-$(CONFIG_ARCH_BCM) += bcm machine-$(CONFIG_ARCH_BERLIN) += berlin diff --git a/arch/arm/mach-asm9260/Makefile b/arch/arm/mach-asm9260/Makefile new file mode 100644 index 0000000..4bd8ebd --- /dev/null +++ b/arch/arm/mach-asm9260/Makefile @@ -0,0 +1,11 @@ +# +# Makefile for the linux kernel. +# + +# Object file lists. + +obj-y := core.o +obj-m := +obj-n := +obj- := + diff --git a/arch/arm/mach-asm9260/Makefile.boot b/arch/arm/mach-asm9260/Makefile.boot new file mode 100644 index 0000000..c57b3b4 --- /dev/null +++ b/arch/arm/mach-asm9260/Makefile.boot @@ -0,0 +1,2 @@ +zreladdr-y := 0x20008000 + diff --git a/arch/arm/mach-asm9260/core.c b/arch/arm/mach-asm9260/core.c new file mode 100644 index 0000000..331af96 --- /dev/null +++ b/arch/arm/mach-asm9260/core.c @@ -0,0 +1,77 @@ +/* + * Copyright (C) 2014 Oleksij Rempel + * Co-author: Du Huanpeng + * map_desc based on: + * linux/arch/arm/mach-asm9260/core.c + * Copyright (C) 2011-2014 Alphascale + * + * 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. + * + * 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 Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include +#include +#include + +static struct map_desc asm9260_io_desc[] __initdata = { + { /* IO space */ + .virtual = (unsigned long)0xf0000000, + .pfn = __phys_to_pfn(0x80000000), + .length = 0x00800000, + .type = MT_DEVICE + }, + { /* LCD IO space */ + .virtual = (unsigned long)0xf0a00000, + .pfn = __phys_to_pfn(0x80800000), + .length = 0x00009000, + .type = MT_DEVICE + }, + { /* GPIO IO space */ + .virtual = (unsigned long)0xf0800000, + .pfn = __phys_to_pfn(0x50000000), + .length = 0x00100000, + .type = MT_DEVICE + }, + { /* SRAM space Cacheable */ + .virtual = (unsigned long)0xd0000000, + .pfn = __phys_to_pfn(0x40000000), + .length = 0x00100000, +#ifdef CONFIG_SRAM_MEM_CACHED + .type = MT_MEMORY +#else + .type = MT_DEVICE +#endif + }, +}; + +static void __init asm9260_map_io(void) +{ + iotable_init(asm9260_io_desc, ARRAY_SIZE(asm9260_io_desc)); +} + +static void __init asm9260_init(void) +{ + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); +} + +static const char * const asm9260_dt_board_compat[] __initconst = { + "alphascale,asm9260", + NULL +}; + +DT_MACHINE_START(ASM9260, "Alphascale ASM9260 (Device Tree Support)") + .map_io = asm9260_map_io, + .init_machine = asm9260_init, + .dt_compat = asm9260_dt_board_compat, +MACHINE_END -- 1.9.1