select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
select SYS_SUPPORTS_LITTLE_ENDIAN
-config LEMOTE_FULOONG2E
- bool "Lemote Fuloong2e mini-PC"
- select ARCH_SPARSEMEM_ENABLE
- select CEVT_R4K
- select CSRC_R4K
- select SYS_HAS_CPU_LOONGSON2
- select DMA_NONCOHERENT
- select BOOT_ELF32
- select BOARD_SCACHE
- select HAVE_STD_PC_SERIAL_PORT
- select HW_HAS_PCI
- select I8259
- select ISA
- select IRQ_CPU
- select SYS_SUPPORTS_32BIT_KERNEL
- select SYS_SUPPORTS_64BIT_KERNEL
- select SYS_SUPPORTS_LITTLE_ENDIAN
- select SYS_SUPPORTS_HIGHMEM
- select SYS_HAS_EARLY_PRINTK
- select GENERIC_ISA_DMA_SUPPORT_BROKEN
- select CPU_HAS_WB
+config MACH_LOONGSON
+ bool "Loongson family of machines"
help
- Lemote Fuloong2e mini-PC board based on the Chinese Loongson-2E CPU and
- an FPGA northbridge
+ This enables the support of Loongson family of machines.
+
+ Loongson is a family of general-purpose MIPS-compatible CPUs.
+ developed at Institute of Computing Technology (ICT),
+ Chinese Academy of Sciences (CAS) in the People's Republic
+ of China. The chief architect is Professor Weiwu Hu.
config MIPS_MALTA
bool "MIPS Malta board"
source "arch/mips/txx9/Kconfig"
source "arch/mips/vr41xx/Kconfig"
source "arch/mips/cavium-octeon/Kconfig"
+source "arch/mips/loongson/Kconfig"
endmenu
load-$(CONFIG_WR_PPMC) += 0xffffffff80100000
#
-# lemote fuloong2e mini-PC board
+# Loongson family
#
-core-$(CONFIG_LEMOTE_FULOONG2E) +=arch/mips/loongson/fuloong-2e/
+core-$(CONFIG_MACH_LOONGSON) +=arch/mips/loongson/
+cflags-$(CONFIG_MACH_LOONGSON) += -I$(srctree)/arch/mips/include/asm/mach-loongson \
+ -mno-branch-likely
load-$(CONFIG_LEMOTE_FULOONG2E) +=0xffffffff80100000
-cflags-$(CONFIG_LEMOTE_FULOONG2E) += -I$(srctree)/arch/mips/include/asm/mach-loongson/
#
# MIPS Malta board
/* loongson internal northbridge initialization */
extern void bonito_irq_init(void);
+/* machine-specific reboot/halt operation */
+extern void mach_prepare_reboot(void);
+extern void mach_prepare_shutdown(void);
+
/* environment arguments from bootloader */
extern unsigned long bus_clock, cpu_clock_freq;
extern unsigned long memsize, highmemsize;
extern void __init prom_init_cmdline(void);
extern void __init prom_init_env(void);
+/* irq operation functions */
+extern void bonito_irqdispatch(void);
+extern void __init bonito_irq_init(void);
+extern void __init set_irq_trigger_mode(void);
+extern void __init mach_init_irq(void);
+extern void mach_irq_dispatch(unsigned int pending);
+
/* PCI Configuration Registers */
#define LOONGSON_PCI_ISR4C BONITO_PCI_REG(0x4c)
--- /dev/null
+/*
+ * Copyright (C) 2009 Lemote, Inc. & Institute of Computing Technology
+ * Author: Wu Zhangjin <wuzj@lemote.com>
+ *
+ * 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.
+ */
+
+#ifndef __ASM_MACH_LOONGSON_MACHINE_H
+#define __ASM_MACH_LOONGSON_MACHINE_H
+
+#ifdef CONFIG_LEMOTE_FULOONG2E
+
+#define LOONGSON_UART_BASE (BONITO_PCIIO_BASE + 0x3f8)
+
+#define LOONGSON_MACHNAME "lemote-fuloong-2e-box"
+
+#endif
+
+#endif /* __ASM_MACH_LOONGSON_MACHINE_H */
--- /dev/null
+/*
+ * Copyright (C) 2009 Lemote, Inc. & Institute of Computing Technology
+ * Author: Wu Zhangjin <wuzj@lemote.com>
+ *
+ * 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.
+ */
+
+#ifndef __ASM_MACH_LOONGSON_MEM_H
+#define __ASM_MACH_LOONGSON_MEM_H
+
+/*
+ * On Lemote Loongson 2e
+ *
+ * the high memory space starts from 512M.
+ * the peripheral registers reside between 0x1000:0000 and 0x2000:0000.
+ */
+
+#ifdef CONFIG_LEMOTE_FULOONG2E
+
+#define LOONGSON_HIGHMEM_START 0x20000000
+
+#define LOONGSON_MMIO_MEM_START 0x10000000
+#define LOONGSON_MMIO_MEM_END 0x20000000
+
+#endif
+
+#endif /* __ASM_MACH_LOONGSON_MEM_H */
extern struct pci_ops bonito64_pci_ops;
-#define LOONGSON2E_PCI_MEM_START BONITO_PCILO1_BASE
-#define LOONGSON2E_PCI_MEM_END (BONITO_PCILO1_BASE + 0x04000000 * 2)
-#define LOONGSON2E_PCI_IO_START 0x00004000UL
+#ifdef CONFIG_LEMOTE_FULOONG2E
+
+/* this pci memory space is mapped by pcimap in pci.c */
+#define LOONGSON_PCI_MEM_START BONITO_PCILO1_BASE
+#define LOONGSON_PCI_MEM_END (BONITO_PCILO1_BASE + 0x04000000 * 2)
+/* this is an offset from mips_io_port_base */
+#define LOONGSON_PCI_IO_START 0x00004000UL
+
+#endif
#endif /* !__ASM_MACH_LOONGSON_PCI_H_ */
--- /dev/null
+choice
+ prompt "Machine Type"
+ depends on MACH_LOONGSON
+
+config LEMOTE_FULOONG2E
+ bool "Lemote Fuloong(2e) mini-PC"
+ select ARCH_SPARSEMEM_ENABLE
+ select CEVT_R4K
+ select CSRC_R4K
+ select SYS_HAS_CPU_LOONGSON2
+ select DMA_NONCOHERENT
+ select BOOT_ELF32
+ select BOARD_SCACHE
+ select HW_HAS_PCI
+ select I8259
+ select ISA
+ select IRQ_CPU
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL
+ select SYS_SUPPORTS_LITTLE_ENDIAN
+ select SYS_SUPPORTS_HIGHMEM
+ select SYS_HAS_EARLY_PRINTK
+ select GENERIC_HARDIRQS_NO__DO_IRQ
+ select GENERIC_ISA_DMA_SUPPORT_BROKEN
+ select CPU_HAS_WB
+ help
+ Lemote Fuloong(2e) mini-PC board based on the Chinese Loongson-2E CPU and
+ an FPGA northbridge
+
+ Lemote Fuloong(2e) mini PC have a VIA686B south bridge.
+endchoice
--- /dev/null
+#
+# Common code for all Loongson based systems
+#
+
+obj-$(CONFIG_MACH_LOONGSON) += common/
+
+#
+# Lemote Fuloong mini-PC (Loongson 2E-based)
+#
+
+obj-$(CONFIG_LEMOTE_FULOONG2E) += fuloong-2e/
--- /dev/null
+#
+# Makefile for loongson based machines.
+#
+
+obj-y += setup.o init.o cmdline.o env.o time.o reset.o irq.o \
+ pci.o bonito-irq.o mem.o
+
+#
+# Early printk support
+#
+obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
#include <linux/serial_reg.h>
#include <loongson.h>
-
-#define UART_BASE (BONITO_PCIIO_BASE + 0x3f8)
+#include <machine.h>
#define PORT(base, offset) (u8 *)(base + offset)
void prom_putchar(char c)
{
phys_addr_t uart_base =
- (phys_addr_t) ioremap_nocache(UART_BASE, 8);
+ (phys_addr_t) ioremap_nocache(LOONGSON_UART_BASE, 8);
while ((serial_in(uart_base, UART_LSR) & UART_LSR_THRE) == 0)
;
--- /dev/null
+/*
+ * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
+ * Author: Fuxin Zhang, zhangfx@lemote.com
+ *
+ * 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/delay.h>
+#include <linux/interrupt.h>
+
+#include <loongson.h>
+/*
+ * the first level int-handler will jump here if it is a bonito irq
+ */
+void bonito_irqdispatch(void)
+{
+ u32 int_status;
+ int i;
+
+ /* workaround the IO dma problem: let cpu looping to allow DMA finish */
+ int_status = BONITO_INTISR;
+ if (int_status & (1 << 10)) {
+ while (int_status & (1 << 10)) {
+ udelay(1);
+ int_status = BONITO_INTISR;
+ }
+ }
+
+ /* Get pending sources, masked by current enables */
+ int_status = BONITO_INTISR & BONITO_INTEN;
+
+ if (int_status != 0) {
+ i = __ffs(int_status);
+ int_status &= ~(1 << i);
+ do_IRQ(BONITO_IRQ_BASE + i);
+ }
+}
+
+asmlinkage void plat_irq_dispatch(void)
+{
+ unsigned int pending;
+
+ pending = read_c0_cause() & read_c0_status() & ST0_IM;
+
+ /* machine-specific plat_irq_dispatch */
+ mach_irq_dispatch(pending);
+}
+
+void __init arch_init_irq(void)
+{
+ /*
+ * Clear all of the interrupts while we change the able around a bit.
+ * int-handler is not on bootstrap
+ */
+ clear_c0_status(ST0_IM | ST0_BEV);
+ local_irq_disable();
+
+ /* setting irq trigger mode */
+ set_irq_trigger_mode();
+
+ /* no steer */
+ BONITO_INTSTEER = 0;
+
+ /*
+ * Mask out all interrupt by writing "1" to all bit position in
+ * the interrupt reset reg.
+ */
+ BONITO_INTENCLR = ~0;
+
+ /* machine specific irq init */
+ mach_init_irq();
+}
* option) any later version.
*/
+#include <machine.h>
+
const char *get_system_type(void)
{
- return "lemote-fuloong-2e-box";
+ return LOONGSON_MACHNAME;
}
#include <asm/bootinfo.h>
#include <loongson.h>
+#include <mem.h>
void __init prom_init_memory(void)
{
add_memory_region(0x0, (memsize << 20), BOOT_MEM_RAM);
#ifdef CONFIG_64BIT
if (highmemsize > 0)
- add_memory_region(0x20000000, highmemsize << 20, BOOT_MEM_RAM);
+ add_memory_region(LOONGSON_HIGHMEM_START,
+ highmemsize << 20, BOOT_MEM_RAM);
#endif /* CONFIG_64BIT */
}
if (file->f_flags & O_SYNC)
return 1;
- /*
- * On the Lemote Loongson 2e system, the peripheral registers
- * reside between 0x1000:0000 and 0x2000:0000.
- */
return addr >= __pa(high_memory) ||
- ((addr >= 0x10000000) && (addr < 0x20000000));
+ ((addr >= LOONGSON_MMIO_MEM_START) &&
+ (addr < LOONGSON_MMIO_MEM_END));
}
#include <pci.h>
#include <loongson.h>
-static struct resource loongson2e_pci_mem_resource = {
- .name = "LOONGSON2E PCI MEM",
- .start = LOONGSON2E_PCI_MEM_START,
- .end = LOONGSON2E_PCI_MEM_END,
+static struct resource loongson_pci_mem_resource = {
+ .name = "pci memory space",
+ .start = LOONGSON_PCI_MEM_START,
+ .end = LOONGSON_PCI_MEM_END,
.flags = IORESOURCE_MEM,
};
-static struct resource loongson2e_pci_io_resource = {
- .name = "LOONGSON2E PCI IO MEM",
- .start = LOONGSON2E_PCI_IO_START,
+static struct resource loongson_pci_io_resource = {
+ .name = "pci io space",
+ .start = LOONGSON_PCI_IO_START,
.end = IO_SPACE_LIMIT,
.flags = IORESOURCE_IO,
};
-static struct pci_controller loongson2e_pci_controller = {
+static struct pci_controller loongson_pci_controller = {
.pci_ops = &bonito64_pci_ops,
- .io_resource = &loongson2e_pci_io_resource,
- .mem_resource = &loongson2e_pci_mem_resource,
+ .io_resource = &loongson_pci_io_resource,
+ .mem_resource = &loongson_pci_mem_resource,
.mem_offset = 0x00000000UL,
.io_offset = 0x00000000UL,
};
{
setup_pcimap();
- loongson2e_pci_controller.io_map_base = mips_io_port_base;
+ loongson_pci_controller.io_map_base = mips_io_port_base;
- register_pci_controller(&loongson2e_pci_controller);
+ register_pci_controller(&loongson_pci_controller);
return 0;
}
--- /dev/null
+/*
+ * 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.
+ *
+ * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
+ * Author: Fuxin Zhang, zhangfx@lemote.com
+ * Copyright (C) 2009 Lemote, Inc. & Institute of Computing Technology
+ * Author: Zhangjin Wu, wuzj@lemote.com
+ */
+#include <linux/init.h>
+#include <linux/pm.h>
+
+#include <asm/reboot.h>
+
+#include <loongson.h>
+
+static void loongson_restart(char *command)
+{
+ /* do preparation for reboot */
+ mach_prepare_reboot();
+
+ /* reboot via jumping to boot base address */
+ ((void (*)(void))ioremap_nocache(BONITO_BOOT_BASE, 4)) ();
+}
+
+static void loongson_halt(void)
+{
+ mach_prepare_shutdown();
+ while (1)
+ ;
+}
+
+static int __init mips_reboot_setup(void)
+{
+ _machine_restart = loongson_restart;
+ _machine_halt = loongson_halt;
+ pm_power_off = loongson_halt;
+
+ return 0;
+}
+
+arch_initcall(mips_reboot_setup);
--- /dev/null
+/*
+ * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
+ * Author: Fuxin Zhang, zhangfx@lemote.com
+ *
+ * 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/module.h>
+
+#include <asm/wbflush.h>
+
+#include <loongson.h>
+
+#ifdef CONFIG_VT
+#include <linux/console.h>
+#include <linux/screen_info.h>
+#endif
+
+void (*__wbflush)(void);
+EXPORT_SYMBOL(__wbflush);
+
+static void wbflush_loongson(void)
+{
+ asm(".set\tpush\n\t"
+ ".set\tnoreorder\n\t"
+ ".set mips3\n\t"
+ "sync\n\t"
+ "nop\n\t"
+ ".set\tpop\n\t"
+ ".set mips0\n\t");
+}
+
+void __init plat_mem_setup(void)
+{
+ __wbflush = wbflush_loongson;
+
+#ifdef CONFIG_VT
+#if defined(CONFIG_VGA_CONSOLE)
+ conswitchp = &vga_con;
+
+ screen_info = (struct screen_info) {
+ 0, 25, /* orig-x, orig-y */
+ 0, /* unused */
+ 0, /* orig-video-page */
+ 0, /* orig-video-mode */
+ 80, /* orig-video-cols */
+ 0, 0, 0, /* ega_ax, ega_bx, ega_cx */
+ 25, /* orig-video-lines */
+ VIDEO_TYPE_VGAC, /* orig-video-isVGA */
+ 16 /* orig-video-points */
+ };
+#elif defined(CONFIG_DUMMY_CONSOLE)
+ conswitchp = &dummy_con;
+#endif
+#endif
+}
# Makefile for Lemote Fuloong2e mini-PC board.
#
-obj-y += setup.o init.o reset.o irq.o pci.o bonito-irq.o mem.o \
- env.o cmdline.o time.o machtype.o
-
-#
-# Early printk support
-#
-obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
+obj-y += irq.o reset.o machtype.o
EXTRA_CFLAGS += -Werror
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
-#include <linux/delay.h>
#include <linux/interrupt.h>
#include <asm/irq_cpu.h>
#include <asm/i8259.h>
#include <loongson.h>
-/*
- * the first level int-handler will jump here if it is a bonito irq
- */
-static void bonito_irqdispatch(void)
-{
- u32 int_status;
- int i;
-
- /* workaround the IO dma problem: let cpu looping to allow DMA finish */
- int_status = BONITO_INTISR;
- if (int_status & (1 << 10)) {
- while (int_status & (1 << 10)) {
- udelay(1);
- int_status = BONITO_INTISR;
- }
- }
-
- /* Get pending sources, masked by current enables */
- int_status = BONITO_INTISR & BONITO_INTEN;
-
- if (int_status != 0) {
- i = __ffs(int_status);
- int_status &= ~(1 << i);
- do_IRQ(BONITO_IRQ_BASE + i);
- }
-}
static void i8259_irqdispatch(void)
{
spurious_interrupt();
}
-asmlinkage void plat_irq_dispatch(void)
+asmlinkage void mach_irq_dispatch(unsigned int pending)
{
- unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM;
-
if (pending & CAUSEF_IP7)
do_IRQ(MIPS_CPU_IRQ_BASE + 7);
else if (pending & CAUSEF_IP6) /* perf counter loverflow */
.name = "cascade",
};
-void __init arch_init_irq(void)
+void __init set_irq_trigger_mode(void)
{
- /*
- * Clear all of the interrupts while we change the able around a bit.
- * int-handler is not on bootstrap
- */
- clear_c0_status(ST0_IM | ST0_BEV);
- local_irq_disable();
-
/* most bonito irq should be level triggered */
BONITO_INTEDGE = BONITO_ICU_SYSTEMERR | BONITO_ICU_MASTERERR |
- BONITO_ICU_RETRYERR | BONITO_ICU_MBOXES;
- BONITO_INTSTEER = 0;
-
- /*
- * Mask out all interrupt by writing "1" to all bit position in
- * the interrupt reset reg.
- */
- BONITO_INTENCLR = ~0;
+ BONITO_ICU_RETRYERR | BONITO_ICU_MBOXES;
+}
+void __init mach_init_irq(void)
+{
/* init all controller
* 0-15 ------> i8259 interrupt
* 16-23 ------> mips cpu interrupt
-/*
+/* Board-specific reboot/shutdown routines
+ * Copyright (c) 2009 Philippe Vachon <philippe@cowpig.ca>
+ *
+ * Copyright (C) 2009 Lemote Inc. & Insititute of Computing Technology
+ * Author: Wu Zhangjin, wuzj@lemote.com
+ *
* 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.
- *
- * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
- * Author: Fuxin Zhang, zhangfx@lemote.com
- * Copyright (C) 2009 Lemote, Inc. & Institute of Computing Technology
- * Author: Zhangjin Wu, wuzj@lemote.com
*/
-#include <linux/init.h>
-#include <linux/pm.h>
-
-#include <asm/reboot.h>
#include <loongson.h>
-static void loongson2e_restart(char *command)
+void mach_prepare_reboot(void)
{
- /* do preparation for reboot */
BONITO_BONGENCFG &= ~(1 << 2);
BONITO_BONGENCFG |= (1 << 2);
-
- /* reboot via jumping to boot base address */
- ((void (*)(void))ioremap_nocache(BONITO_BOOT_BASE, 4)) ();
}
-static void loongson2e_halt(void)
+void mach_prepare_shutdown(void)
{
- while (1)
- ;
}
-
-static int __init mips_reboot_setup(void)
-{
- _machine_restart = loongson2e_restart;
- _machine_halt = loongson2e_halt;
- pm_power_off = loongson2e_halt;
-
- return 0;
-}
-
-arch_initcall(mips_reboot_setup);
projects / linux-platform-drivers-x86.git / commitdiff