[PATCH v2 1/8] ARM: add mach-asm9260
Oleksij Rempel
linux at rempel-privat.de
Sun Sep 21 11:41:37 PDT 2014
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 <linux at rempel-privat.de>
---
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 <linux at rempel-privat.de>
+ * Co-author: Du Huanpeng <u74147 at gmail.com>
+ * 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 <linux/of_platform.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+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
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