Gdium is same to most of the loongson2f based machines except that it
does NOT use the cs5536 south bridge.
Signed-off-by: yajin <yajin@xxxxxxxxxxxxx>
---
arch/mips/Makefile | 1 +
arch/mips/include/asm/mach-loongson/machine.h | 7 +++
arch/mips/loongson/Kconfig | 25 +++++++++
arch/mips/loongson/Makefile | 6 ++
arch/mips/loongson/gdium/Makefile | 3 +
arch/mips/loongson/gdium/irq.c | 66 +++++++++++++++++++++++++
arch/mips/loongson/gdium/reset.c | 25 +++++++++
7 files changed, 133 insertions(+), 0 deletions(-)
create mode 100644 arch/mips/loongson/gdium/Makefile
create mode 100644 arch/mips/loongson/gdium/irq.c
create mode 100644 arch/mips/loongson/gdium/reset.c
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 0b9c01a..c1470af 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -359,6 +359,7 @@ cflags-$(CONFIG_MACH_LOONGSON) +=
-I$(srctree)/arch/mips/include/asm/mach-loongs
-mno-branch-likely
load-$(CONFIG_LEMOTE_FULOONG2E) += 0xffffffff80100000
load-$(CONFIG_LEMOTE_MACH2F) += 0xffffffff80200000
+load-$(CONFIG_DEXXON_GDIUM) += 0xffffffff80200000
#
# MIPS Malta board
diff --git a/arch/mips/include/asm/mach-loongson/machine.h
b/arch/mips/include/asm/mach-loongson/machine.h
index 4321338..fb9554c 100644
--- a/arch/mips/include/asm/mach-loongson/machine.h
+++ b/arch/mips/include/asm/mach-loongson/machine.h
@@ -24,4 +24,11 @@
#endif
+/* use gdium as the default machine of LEMOTE_MACH2F */
+#ifdef CONFIG_DEXXON_GDIUM
+
+#define LOONGSON_MACHTYPE MACH_DEXXON_GDIUM2F10
+
+#endif
+
#endif /* __ASM_MACH_LOONGSON_MACHINE_H */
diff --git a/arch/mips/loongson/Kconfig b/arch/mips/loongson/Kconfig
index 3df1967..90a02b4 100644
--- a/arch/mips/loongson/Kconfig
+++ b/arch/mips/loongson/Kconfig
@@ -57,6 +57,31 @@ config LEMOTE_MACH2F
These family machines include fuloong2f mini PC, yeeloong2f notebook,
LingLoong allinone PC and so forth.
+
+config DEXXON_GDIUM
+ bool "Dexxon Gdium Netbook"
+ select ARCH_SPARSEMEM_ENABLE
+ select BOARD_SCACHE
+ select BOOT_ELF32
+ select CEVT_R4K
+ select CPU_HAS_WB
+ select CSRC_R4K
+ select DMA_NONCOHERENT
+ select GENERIC_HARDIRQS_NO__DO_IRQ
+ select GENERIC_ISA_DMA_SUPPORT_BROKEN
+ select HW_HAS_PCI
+ select I8259
+ select IRQ_CPU
+ select ISA
+ select SYS_HAS_CPU_LOONGSON2F
+ select SYS_HAS_EARLY_PRINTK
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL
+ select SYS_SUPPORTS_HIGHMEM
+ select SYS_SUPPORTS_LITTLE_ENDIAN
+ select ARCH_REQUIRE_GPIOLIB
+ help
+ Dexxon gdium netbook based on Loongson 2F and SM502.
endchoice
config CS5536
diff --git a/arch/mips/loongson/Makefile b/arch/mips/loongson/Makefile
index 2b76cb0..6002109 100644
--- a/arch/mips/loongson/Makefile
+++ b/arch/mips/loongson/Makefile
@@ -15,3 +15,9 @@ obj-$(CONFIG_LEMOTE_FULOONG2E) += fuloong-2e/
#
obj-$(CONFIG_LEMOTE_MACH2F) += lemote-2f/
+
+#
+# gdium
+#
+
+obj-$(CONFIG_DEXXON_GDIUM) += gdium/
diff --git a/arch/mips/loongson/gdium/Makefile
b/arch/mips/loongson/gdium/Makefile
new file mode 100644
index 0000000..31a8e57
--- /dev/null
+++ b/arch/mips/loongson/gdium/Makefile
@@ -0,0 +1,3 @@
+# Makefile for gdium
+
+obj-y += irq.o reset.o
diff --git a/arch/mips/loongson/gdium/irq.c b/arch/mips/loongson/gdium/irq.c
new file mode 100644
index 0000000..b0679eb
--- /dev/null
+++ b/arch/mips/loongson/gdium/irq.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2007 Lemote Inc.
+ * Author: Fuxin Zhang, zhangfx@xxxxxxxxxx
+ *
+ * Copyright (c) 2010 yajin <yajin@xxxxxxxxxxxxx>
+ *
+ * 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/interrupt.h>
+#include <linux/module.h>
+
+#include <asm/irq_cpu.h>
+#include <asm/mipsregs.h>
+
+#include <loongson.h>
+#include <machine.h>
+
+#define LOONGSON_TIMER_IRQ (MIPS_CPU_IRQ_BASE + 7) /* cpu timer */
+#define LOONGSON_PERFCNT_IRQ (MIPS_CPU_IRQ_BASE + 6) /* cpu perf counter */
+#define LOONGSON_NORTH_BRIDGE_IRQ (MIPS_CPU_IRQ_BASE + 6) /* bonito */
+#define LOONGSON_UART_IRQ (MIPS_CPU_IRQ_BASE + 3) /* cpu serial port */
+
+void mach_irq_dispatch(unsigned int pending)
+{
+ if (pending & CAUSEF_IP7)
+ do_IRQ(LOONGSON_TIMER_IRQ);
+ else if (pending & CAUSEF_IP6) { /* North Bridge, Perf counter */
+#ifdef CONFIG_OPROFILE
+ do_IRQ(LOONGSON2_PERFCNT_IRQ);
+#endif
+ bonito_irqdispatch();
+ } else if (pending & CAUSEF_IP3) /* CPU UART */
+ do_IRQ(LOONGSON_UART_IRQ);
+ else
+ spurious_interrupt();
+}
+
+static irqreturn_t ip6_action(int cpl, void *dev_id)
+{
+ return IRQ_HANDLED;
+}
+
+struct irqaction ip6_irqaction = {
+ .handler = ip6_action,
+ .name = "cascade",
+ .flags = IRQF_SHARED,
+};
+
+void __init mach_init_irq(void)
+{
+ /* init all controller
+ * 16-23 ------> mips cpu interrupt
+ * 32-63 ------> bonito irq
+ */
+
+ /* Sets the first-level interrupt dispatcher. */
+ mips_cpu_irq_init();
+ bonito_irq_init();
+
+ /* setup north bridge irq (bonito) */
+ setup_irq(LOONGSON_NORTH_BRIDGE_IRQ, &ip6_irqaction);
+}
diff --git a/arch/mips/loongson/gdium/reset.c b/arch/mips/loongson/gdium/reset.c
new file mode 100644
index 0000000..da7752d
--- /dev/null
+++ b/arch/mips/loongson/gdium/reset.c
@@ -0,0 +1,25 @@
+/* Board-specific reboot/shutdown routines
+ *
+ * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
+ * Author: Fuxin Zhang, zhangfx@xxxxxxxxxx
+ *
+ * Copyright (C) 2010 yajin <yajin@xxxxxxxxxxxxx>
+ *
+ * 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 <loongson.h>
+
+void mach_prepare_shutdown(void)
+{
+ LOONGSON_GPIOIE &= ~(1<<1);
+ LOONGSON_GPIODATA |= (1<<1);
+}
+
+void mach_prepare_reboot(void)
+{
+ LOONGSON_GPIOIE &= ~(1<<2);
+ LOONGSON_GPIODATA &= ~(1<<2);
+}
--
1.5.6.5
