Commit 42d226c7 authored by Songmao Tian's avatar Songmao Tian Committed by Ralf Baechle

[MIPS] New files for lemote fulong mini-PC support

Signed-off-by: default avatarFuxin Zhang <zhangfx@lemote.com>
Signed-off-by: default avatarSongmao Tian <tiansm@lemote.com>
Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 2a21c730
......@@ -15,6 +15,29 @@ choice
prompt "System type"
default SGI_IP22
config LEMOTE_FULONG
bool "Lemote Fulong mini-PC"
select ARCH_SPARSEMEM_ENABLE
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_HARDIRQS_NO__DO_IRQ
select CPU_HAS_WB
help
Lemote Fulong mini-PC board based on the Chinese Loongson-2E CPU and
an FPGA northbridge
config MACH_ALCHEMY
bool "Alchemy processor based machines"
......
......@@ -290,6 +290,13 @@ core-$(CONFIG_WR_PPMC) += arch/mips/gt64120/wrppmc/
cflags-$(CONFIG_WR_PPMC) += -Iinclude/asm-mips/mach-wrppmc
load-$(CONFIG_WR_PPMC) += 0xffffffff80100000
#
# lemote fulong mini-PC board
#
core-$(CONFIG_LEMOTE_FULONG) +=arch/mips/lemote/lm2e/
load-$(CONFIG_LEMOTE_FULONG) +=0xffffffff80100000
cflags-$(CONFIG_LEMOTE_FULONG) += -Iinclude/asm-mips/mach-lemote
#
# For all MIPS, Inc. eval boards
#
......
This diff is collapsed.
#
# Makefile for Lemote Fulong mini-PC board.
#
obj-y += setup.o prom.o reset.o irq.o pci.o bonito-irq.o dbg_io.o mem.o
EXTRA_AFLAGS := $(CFLAGS)
/*
* Copyright 2001 MontaVista Software Inc.
* Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
* Copyright (C) 2000, 2001 Ralf Baechle (ralf@gnu.org)
*
* 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.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* 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.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <asm/mips-boards/bonito64.h>
static inline void bonito_irq_enable(unsigned int irq)
{
BONITO_INTENSET = (1 << (irq - BONITO_IRQ_BASE));
mmiowb();
}
static inline void bonito_irq_disable(unsigned int irq)
{
BONITO_INTENCLR = (1 << (irq - BONITO_IRQ_BASE));
mmiowb();
}
static struct irq_chip bonito_irq_type = {
.name = "bonito_irq",
.ack = bonito_irq_disable,
.mask = bonito_irq_disable,
.mask_ack = bonito_irq_disable,
.unmask = bonito_irq_enable,
};
static struct irqaction dma_timeout_irqaction = {
.handler = no_action,
.name = "dma_timeout",
};
void bonito_irq_init(void)
{
u32 i;
for (i = BONITO_IRQ_BASE; i < BONITO_IRQ_BASE + 32; i++) {
set_irq_chip_and_handler(i, &bonito_irq_type, handle_level_irq);
}
setup_irq(BONITO_IRQ_BASE + 10, &dma_timeout_irqaction);
}
/*
* Copyright 2001 MontaVista Software Inc.
* Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
* Copyright (C) 2000, 2001 Ralf Baechle (ralf@gnu.org)
*
* 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.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* 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.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <linux/io.h>
#include <linux/init.h>
#include <linux/types.h>
#include <asm/serial.h>
#define UART16550_BAUD_2400 2400
#define UART16550_BAUD_4800 4800
#define UART16550_BAUD_9600 9600
#define UART16550_BAUD_19200 19200
#define UART16550_BAUD_38400 38400
#define UART16550_BAUD_57600 57600
#define UART16550_BAUD_115200 115200
#define UART16550_PARITY_NONE 0
#define UART16550_PARITY_ODD 0x08
#define UART16550_PARITY_EVEN 0x18
#define UART16550_PARITY_MARK 0x28
#define UART16550_PARITY_SPACE 0x38
#define UART16550_DATA_5BIT 0x0
#define UART16550_DATA_6BIT 0x1
#define UART16550_DATA_7BIT 0x2
#define UART16550_DATA_8BIT 0x3
#define UART16550_STOP_1BIT 0x0
#define UART16550_STOP_2BIT 0x4
/* ----------------------------------------------------- */
/* === CONFIG === */
#ifdef CONFIG_64BIT
#define BASE (0xffffffffbfd003f8)
#else
#define BASE (0xbfd003f8)
#endif
#define MAX_BAUD BASE_BAUD
/* === END OF CONFIG === */
#define REG_OFFSET 1
/* register offset */
#define OFS_RCV_BUFFER 0
#define OFS_TRANS_HOLD 0
#define OFS_SEND_BUFFER 0
#define OFS_INTR_ENABLE (1*REG_OFFSET)
#define OFS_INTR_ID (2*REG_OFFSET)
#define OFS_DATA_FORMAT (3*REG_OFFSET)
#define OFS_LINE_CONTROL (3*REG_OFFSET)
#define OFS_MODEM_CONTROL (4*REG_OFFSET)
#define OFS_RS232_OUTPUT (4*REG_OFFSET)
#define OFS_LINE_STATUS (5*REG_OFFSET)
#define OFS_MODEM_STATUS (6*REG_OFFSET)
#define OFS_RS232_INPUT (6*REG_OFFSET)
#define OFS_SCRATCH_PAD (7*REG_OFFSET)
#define OFS_DIVISOR_LSB (0*REG_OFFSET)
#define OFS_DIVISOR_MSB (1*REG_OFFSET)
/* memory-mapped read/write of the port */
#define UART16550_READ(y) readb((char *)BASE + (y))
#define UART16550_WRITE(y, z) writeb(z, (char *)BASE + (y))
void debugInit(u32 baud, u8 data, u8 parity, u8 stop)
{
u32 divisor;
/* disable interrupts */
UART16550_WRITE(OFS_INTR_ENABLE, 0);
/* set up buad rate */
/* set DIAB bit */
UART16550_WRITE(OFS_LINE_CONTROL, 0x80);
/* set divisor */
divisor = MAX_BAUD / baud;
UART16550_WRITE(OFS_DIVISOR_LSB, divisor & 0xff);
UART16550_WRITE(OFS_DIVISOR_MSB, (divisor & 0xff00) >> 8);
/* clear DIAB bit */
UART16550_WRITE(OFS_LINE_CONTROL, 0x0);
/* set data format */
UART16550_WRITE(OFS_DATA_FORMAT, data | parity | stop);
}
static int remoteDebugInitialized;
u8 getDebugChar(void)
{
if (!remoteDebugInitialized) {
remoteDebugInitialized = 1;
debugInit(UART16550_BAUD_115200,
UART16550_DATA_8BIT,
UART16550_PARITY_NONE, UART16550_STOP_1BIT);
}
while ((UART16550_READ(OFS_LINE_STATUS) & 0x1) == 0) ;
return UART16550_READ(OFS_RCV_BUFFER);
}
int putDebugChar(u8 byte)
{
if (!remoteDebugInitialized) {
remoteDebugInitialized = 1;
/*
debugInit(UART16550_BAUD_115200,
UART16550_DATA_8BIT,
UART16550_PARITY_NONE, UART16550_STOP_1BIT); */
}
while ((UART16550_READ(OFS_LINE_STATUS) & 0x20) == 0) ;
UART16550_WRITE(OFS_SEND_BUFFER, byte);
return 1;
}
/*
* 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.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* 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.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <asm/irq_cpu.h>
#include <asm/i8259.h>
#include <asm/mipsregs.h>
#include <asm/mips-boards/bonito64.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)
{
int irq;
irq = i8259_irq();
if (irq >= 0) {
do_IRQ(irq);
} else {
spurious_interrupt();
}
}
asmlinkage void plat_irq_dispatch(void)
{
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_IP5) {
i8259_irqdispatch();
} else if (pending & CAUSEF_IP2) {
bonito_irqdispatch();
} else {
spurious_interrupt();
}
}
static struct irqaction cascade_irqaction = {
.handler = no_action,
.mask = CPU_MASK_NONE,
.name = "cascade",
};
void __init arch_init_irq(void)
{
extern void bonito_irq_init(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;
/* init all controller
* 0-15 ------> i8259 interrupt
* 16-23 ------> mips cpu interrupt
* 32-63 ------> bonito irq
*/
/* Sets the first-level interrupt dispatcher. */
mips_cpu_irq_init();
init_i8259_irqs();
bonito_irq_init();
/*
printk("GPIODATA=%x, GPIOIE=%x\n", BONITO_GPIODATA, BONITO_GPIOIE);
printk("INTEN=%x, INTSET=%x, INTCLR=%x, INTISR=%x\n",
BONITO_INTEN, BONITO_INTENSET,
BONITO_INTENCLR, BONITO_INTISR);
*/
/* bonito irq at IP2 */
setup_irq(MIPS_CPU_IRQ_BASE + 2, &cascade_irqaction);
/* 8259 irq at IP5 */
setup_irq(MIPS_CPU_IRQ_BASE + 5, &cascade_irqaction);
}
/*
* 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/fs.h>
#include <linux/fcntl.h>
#include <linux/mm.h>
/* override of arch/mips/mm/cache.c: __uncached_access */
int __uncached_access(struct file *file, unsigned long addr)
{
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));
}
/*
* pci.c
*
* Copyright (C) 2007 Lemote, Inc. & Institute 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.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* 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.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <asm/mips-boards/bonito64.h>
extern struct pci_ops bonito64_pci_ops;
static struct resource loongson2e_pci_mem_resource = {
.name = "LOONGSON2E PCI MEM",
.start = 0x14000000UL,
.end = 0x1fffffffUL,
.flags = IORESOURCE_MEM,
};
static struct resource loongson2e_pci_io_resource = {
.name = "LOONGSON2E PCI IO MEM",
.start = 0x00004000UL,
.end = IO_SPACE_LIMIT,
.flags = IORESOURCE_IO,
};
static struct pci_controller loongson2e_pci_controller = {
.pci_ops = &bonito64_pci_ops,
.io_resource = &loongson2e_pci_io_resource,
.mem_resource = &loongson2e_pci_mem_resource,
.mem_offset = 0x00000000UL,
.io_offset = 0x00000000UL,
};
static void __init ict_pcimap(void)
{
/*
* local to PCI mapping: [256M,512M] -> [256M,512M]; differ from PMON
*
* CPU address space [256M,448M] is window for accessing pci space
* we set pcimap_lo[0,1,2] to map it to pci space [256M,448M]
* pcimap: bit18,pcimap_2; bit[17-12],lo2;bit[11-6],lo1;bit[5-0],lo0
*/
/* 1,00 0110 ,0001 01,00 0000 */
BONITO_PCIMAP = 0x46140;
/* 1, 00 0010, 0000,01, 00 0000 */
/* BONITO_PCIMAP = 0x42040; */
/*
* PCI to local mapping: [2G,2G+256M] -> [0,256M]
*/
BONITO_PCIBASE0 = 0x80000000;
BONITO_PCIBASE1 = 0x00800000;
BONITO_PCIBASE2 = 0x90000000;
}
static int __init pcibios_init(void)
{
extern int pci_probe_only;
pci_probe_only = 0;
ict_pcimap();
register_pci_controller(&loongson2e_pci_controller);
return 0;
}
arch_initcall(pcibios_init);
/*
* Based on Ocelot Linux port, which is
* Copyright 2001 MontaVista Software Inc.
* Author: jsun@mvista.com or jsun@junsun.net
*
* Copyright 2003 ICT CAS
* Author: Michael Guo <guoyi@ict.ac.cn>
*
* 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/init.h>
#include <linux/mm.h>
#include <linux/sched.h>
#include <linux/bootmem.h>
#include <asm/addrspace.h>
#include <asm/bootinfo.h>
extern unsigned long bus_clock;
extern unsigned long cpu_clock;
extern unsigned int memsize, highmemsize;
extern int putDebugChar(unsigned char byte);
static int argc;
/* pmon passes arguments in 32bit pointers */
static int *arg;
static int *env;
const char *get_system_type(void)
{
return "lemote-fulong";
}
void __init prom_init_cmdline(void)
{
int i;
long l;
/* arg[0] is "g", the rest is boot parameters */
arcs_cmdline[0] = '\0';
for (i = 1; i < argc; i++) {
l = (long)arg[i];
if (strlen(arcs_cmdline) + strlen(((char *)l) + 1)
>= sizeof(arcs_cmdline))
break;
strcat(arcs_cmdline, ((char *)l));
strcat(arcs_cmdline, " ");
}
}
void __init prom_init(void)
{
long l;
argc = fw_arg0;
arg = (int *)fw_arg1;
env = (int *)fw_arg2;
mips_machgroup = MACH_GROUP_LEMOTE;
mips_machtype = MACH_LEMOTE_FULONG;
prom_init_cmdline();
if ((strstr(arcs_cmdline, "console=")) == NULL)
strcat(arcs_cmdline, " console=ttyS0,115200");
if ((strstr(arcs_cmdline, "root=")) == NULL)
strcat(arcs_cmdline, " root=/dev/hda1");
#define parse_even_earlier(res, option, p) \
do { \
if (strncmp(option, (char *)p, strlen(option)) == 0) \
res = simple_strtol((char *)p + strlen(option"="), \
NULL, 10); \
} while (0)
l = (long)*env;
while (l != 0) {
parse_even_earlier(bus_clock, "busclock", l);
parse_even_earlier(cpu_clock, "cpuclock", l);
parse_even_earlier(memsize, "memsize", l);
parse_even_earlier(highmemsize, "highmemsize", l);
env++;
l = (long)*env;
}
if (memsize == 0)
memsize = 256;
pr_info("busclock=%ld, cpuclock=%ld,memsize=%d,highmemsize=%d\n",
bus_clock, cpu_clock, memsize, highmemsize);
}
void __init prom_free_prom_memory(void)
{
}
void prom_putchar(char c)
{
putDebugChar(c);
}
/*
* 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
*/
#include <linux/pm.h>
#include <asm/reboot.h>
static void loongson2e_restart(char *command)
{
#ifdef CONFIG_32BIT
*(unsigned long *)0xbfe00104 &= ~(1 << 2);
*(unsigned long *)0xbfe00104 |= (1 << 2);
#else
*(unsigned long *)0xffffffffbfe00104 &= ~(1 << 2);
*(unsigned long *)0xffffffffbfe00104 |= (1 << 2);
#endif
__asm__ __volatile__("jr\t%0"::"r"(0xbfc00000));
}
static void loongson2e_halt(void)
{
while (1) ;
}
static void loongson2e_power_off(void)
{
loongson2e_halt();
}
void mips_reboot_setup(void)
{
_machine_restart = loongson2e_restart;
_machine_halt = loongson2e_halt;
pm_power_off = loongson2e_power_off;
}
/*
* BRIEF MODULE DESCRIPTION
* setup.c - board dependent boot routines
*
* 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.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* 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.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <linux/bootmem.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/ioport.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/kernel.h>
#include <linux/mc146818rtc.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/tty.h>
#include <linux/types.h>
#include <asm/bootinfo.h>
#include <asm/mc146818-time.h>
#include <asm/time.h>
#include <asm/wbflush.h>
#ifdef CONFIG_VT
#include <linux/console.h>
#include <linux/screen_info.h>
#endif
extern void mips_reboot_setup(void);
#ifdef CONFIG_64BIT
#define PTR_PAD(p) ((0xffffffff00000000)|((unsigned long long)(p)))
#else
#define PTR_PAD(p) (p)
#endif
unsigned long cpu_clock;
unsigned long bus_clock;
unsigned int memsize;
unsigned int highmemsize = 0;
void __init plat_timer_setup(struct irqaction *irq)
{
setup_irq(MIPS_CPU_IRQ_BASE + 7, irq);
}
static void __init loongson2e_time_init(void)
{
/* setup mips r4k timer */
mips_hpt_frequency = cpu_clock / 2;
}
static unsigned long __init mips_rtc_get_time(void)
{
return mc146818_get_cmos_time();
}
void (*__wbflush)(void);
EXPORT_SYMBOL(__wbflush);
static void wbflush_loongson2e(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)
{
set_io_port_base(PTR_PAD(0xbfd00000));
mips_reboot_setup();
board_time_init = loongson2e_time_init;
rtc_mips_get_time = mips_rtc_get_time;
__wbflush = wbflush_loongson2e;
add_memory_region(0x0, (memsize << 20), BOOT_MEM_RAM);
#ifdef CONFIG_64BIT
if (highmemsize > 0) {
add_memory_region(0x20000000, highmemsize << 20, BOOT_MEM_RAM);
}
#endif
#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
}
......@@ -28,6 +28,7 @@ obj-$(CONFIG_MIPS_COBALT) += fixup-cobalt.o
obj-$(CONFIG_SOC_AU1500) += fixup-au1000.o ops-au1000.o
obj-$(CONFIG_SOC_AU1550) += fixup-au1000.o ops-au1000.o
obj-$(CONFIG_SOC_PNX8550) += fixup-pnx8550.o ops-pnx8550.o
obj-$(CONFIG_LEMOTE_FULONG) += fixup-lm2e.o ops-bonito64.o
obj-$(CONFIG_MIPS_MALTA) += fixup-malta.o
obj-$(CONFIG_MOMENCO_OCELOT) += fixup-ocelot.o pci-ocelot.o
obj-$(CONFIG_MOMENCO_OCELOT_3) += fixup-ocelot3.o
......
/*
* fixup-lm2e.c
*
* Copyright (C) 2004 ICT CAS
* Author: Li xiaoyu, ICT CAS
* lixy@ict.ac.cn
*
* Copyright (C) 2007 Lemote, Inc. & Institute 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.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* 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.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <linux/init.h>
#include <linux/pci.h>
#include <asm/mips-boards/bonito64.h>
/* South bridge slot number is set by the pci probe process */
static u8 sb_slot = 5;
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
int irq = 0;
if (slot == sb_slot) {
switch (PCI_FUNC(dev->devfn)) {
case 2:
irq = 10;
break;
case 3:
irq = 11;
break;
case 5:
irq = 9;
break;
}
} else {
irq = BONITO_IRQ_BASE + 25 + pin;
}
return irq;
}
/* Do platform specific device initialization at pci_enable_device() time */
int pcibios_plat_dev_init(struct pci_dev *dev)
{
return 0;
}
static void __init loongson2e_nec_fixup(struct pci_dev *pdev)
{
unsigned int val;
/* Configues port 1, 2, 3, 4 to be validate*/
pci_read_config_dword(pdev, 0xe0, &val);
pci_write_config_dword(pdev, 0xe0, (val & ~7) | 0x4);
/* System clock is 48-MHz Oscillator. */
pci_write_config_dword(pdev, 0xe4, 1 << 5);
}
static void __init loongson2e_686b_func0_fixup(struct pci_dev *pdev)
{
unsigned char c;
sb_slot = PCI_SLOT(pdev->devfn);
printk(KERN_INFO "via686b fix: ISA bridge\n");
/* Enable I/O Recovery time */
pci_write_config_byte(pdev, 0x40, 0x08);
/* Enable ISA refresh */
pci_write_config_byte(pdev, 0x41, 0x01);
/* disable ISA line buffer */
pci_write_config_byte(pdev, 0x45, 0x00);
/* Gate INTR, and flush line buffer */
pci_write_config_byte(pdev, 0x46, 0xe0);
/* Disable PCI Delay Transaction, Enable EISA ports 4D0/4D1. */
/* pci_write_config_byte(pdev, 0x47, 0x20); */
/*
* enable PCI Delay Transaction, Enable EISA ports 4D0/4D1.
* enable time-out timer
*/
pci_write_config_byte(pdev, 0x47, 0xe6);
/*
* enable level trigger on pci irqs: 9,10,11,13
* important! without this PCI interrupts won't work
*/
outb(0x2e, 0x4d1);
/* 512 K PCI Decode */
pci_write_config_byte(pdev, 0x48, 0x01);
/* Wait for PGNT before grant to ISA Master/DMA */
pci_write_config_byte(pdev, 0x4a, 0x84);
/*
* Plug'n'Play
*
* Parallel DRQ 3, Floppy DRQ 2 (default)
*/
pci_write_config_byte(pdev, 0x50, 0x0e);
/*
* IRQ Routing for Floppy and Parallel port
*
* IRQ 6 for floppy, IRQ 7 for parallel port
*/
pci_write_config_byte(pdev, 0x51, 0x76);
/* IRQ Routing for serial ports (take IRQ 3 and 4) */
pci_write_config_byte(pdev, 0x52, 0x34);
/* All IRQ's level triggered. */
pci_write_config_byte(pdev, 0x54, 0x00);
/* route PIRQA-D irq */
pci_write_config_byte(pdev, 0x55, 0x90); /* bit 7-4, PIRQA */
pci_write_config_byte(pdev, 0x56, 0xba); /* bit 7-4, PIRQC; */
/* 3-0, PIRQB */
pci_write_config_byte(pdev, 0x57, 0xd0); /* bit 7-4, PIRQD */
/* enable function 5/6, audio/modem */
pci_read_config_byte(pdev, 0x85, &c);
c &= ~(0x3 << 2);
pci_write_config_byte(pdev, 0x85, c);
printk(KERN_INFO"via686b fix: ISA bridge done\n");
}
static void __init loongson2e_686b_func1_fixup(struct pci_dev *pdev)
{
printk(KERN_INFO"via686b fix: IDE\n");
/* Modify IDE controller setup */
pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 48);
pci_write_config_byte(pdev, PCI_COMMAND,
PCI_COMMAND_IO | PCI_COMMAND_MEMORY |
PCI_COMMAND_MASTER);
pci_write_config_byte(pdev, 0x40, 0x0b);
/* legacy mode */
pci_write_config_byte(pdev, 0x42, 0x09);
#if 1/* play safe, otherwise we may see notebook's usb keyboard lockup */
/* disable read prefetch/write post buffers */
pci_write_config_byte(pdev, 0x41, 0x02);
/* use 3/4 as fifo thresh hold */
pci_write_config_byte(pdev, 0x43, 0x0a);
pci_write_config_byte(pdev, 0x44, 0x00);
pci_write_config_byte(pdev, 0x45, 0x00);
#else
pci_write_config_byte(pdev, 0x41, 0xc2);
pci_write_config_byte(pdev, 0x43, 0x35);
pci_write_config_byte(pdev, 0x44, 0x1c);
pci_write_config_byte(pdev, 0x45, 0x10);
#endif
printk(KERN_INFO"via686b fix: IDE done\n");
}
static void __init loongson2e_686b_func2_fixup(struct pci_dev *pdev)
{
/* irq routing */
pci_write_config_byte(pdev, PCI_INTERRUPT_LINE, 10);
}
static void __init loongson2e_686b_func3_fixup(struct pci_dev *pdev)
{
/* irq routing */
pci_write_config_byte(pdev, PCI_INTERRUPT_LINE, 11);
}
static void __init loongson2e_686b_func5_fixup(struct pci_dev *pdev)
{
unsigned int val;
unsigned char c;
/* enable IO */
pci_write_config_byte(pdev, PCI_COMMAND,
PCI_COMMAND_IO | PCI_COMMAND_MEMORY |
PCI_COMMAND_MASTER);
pci_read_config_dword(pdev, 0x4, &val);
pci_write_config_dword(pdev, 0x4, val | 1);
/* route ac97 IRQ */
pci_write_config_byte(pdev, 0x3c, 9);
pci_read_config_byte(pdev, 0x8, &c);
/* link control: enable link & SGD PCM output */
pci_write_config_byte(pdev, 0x41, 0xcc);
/* disable game port, FM, midi, sb, enable write to reg2c-2f */
pci_write_config_byte(pdev, 0x42, 0x20);
/* we are using Avance logic codec */
pci_write_config_word(pdev, 0x2c, 0x1005);
pci_write_config_word(pdev, 0x2e, 0x4710);
pci_read_config_dword(pdev, 0x2c, &val);
pci_write_config_byte(pdev, 0x42, 0x0);
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686,
loongson2e_686b_func0_fixup);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_1,
loongson2e_686b_func1_fixup);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_2,
loongson2e_686b_func2_fixup);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3,
loongson2e_686b_func3_fixup);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_5,
loongson2e_686b_func5_fixup);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_USB,
loongson2e_nec_fixup);
......@@ -29,83 +29,60 @@
#define PCI_ACCESS_READ 0
#define PCI_ACCESS_WRITE 1
/*
* PCI configuration cycle AD bus definition
*/
/* Type 0 */
#define PCI_CFG_TYPE0_REG_SHF 0
#define PCI_CFG_TYPE0_FUNC_SHF 8
#ifdef CONFIG_LEMOTE_FULONG
#define CFG_SPACE_REG(offset) (void *)CKSEG1ADDR(BONITO_PCICFG_BASE | (offset))
#define ID_SEL_BEGIN 11
#else
#define CFG_SPACE_REG(offset) (void *)CKSEG1ADDR(_pcictrl_bonito_pcicfg + (offset))
#define ID_SEL_BEGIN 10
#endif
#define MAX_DEV_NUM (31 - ID_SEL_BEGIN)
/* Type 1 */
#define PCI_CFG_TYPE1_REG_SHF 0
#define PCI_CFG_TYPE1_FUNC_SHF 8
#define PCI_CFG_TYPE1_DEV_SHF 11
#define PCI_CFG_TYPE1_BUS_SHF 16
static int bonito64_pcibios_config_access(unsigned char access_type,
struct pci_bus *bus,
unsigned int devfn, int where,
u32 * data)
{
unsigned char busnum = bus->number;
u32 busnum = bus->number;
u32 addr, type;
u32 dummy;
u64 pci_addr;
/* Algorithmics Bonito64 system controller. */
void *addrp;
int device = PCI_SLOT(devfn);
int function = PCI_FUNC(devfn);
int reg = where & ~3;
if ((busnum == 0) && (PCI_SLOT(devfn) > 21)) {
/* We number bus 0 devices from 0..21 */
if (busnum == 0) {
/* Type 0 configuration for onboard PCI bus */
if (device > MAX_DEV_NUM)
return -1;
}
/* Clear cause register bits */
BONITO_PCICMD |= (BONITO_PCICMD_MABORT_CLR |
BONITO_PCICMD_MTABORT_CLR);
/*
* Setup pattern to be used as PCI "address" for
* Type 0 cycle
*/
if (busnum == 0) {
/* IDSEL */
pci_addr = (u64) 1 << (PCI_SLOT(devfn) + 10);
addr = (1 << (device + ID_SEL_BEGIN)) | (function << 8) | reg;
type = 0;
} else {
/* Bus number */
pci_addr = busnum << PCI_CFG_TYPE1_BUS_SHF;
/* Device number */
pci_addr |=
PCI_SLOT(devfn) << PCI_CFG_TYPE1_DEV_SHF;
/* Type 1 configuration for offboard PCI bus */
addr = (busnum << 16) | (device << 11) | (function << 8) | reg;
type = 0x10000;
}
/* Function (same for Type 0/1) */
pci_addr |= PCI_FUNC(devfn) << PCI_CFG_TYPE0_FUNC_SHF;
/* Clear aborts */
BONITO_PCICMD |= BONITO_PCICMD_MABORT_CLR | BONITO_PCICMD_MTABORT_CLR;
/* Register number (same for Type 0/1) */
pci_addr |= (where & ~0x3) << PCI_CFG_TYPE0_REG_SHF;
if (busnum == 0) {
/* Type 0 */
BONITO_PCIMAP_CFG = pci_addr >> 16;
} else {
/* Type 1 */
BONITO_PCIMAP_CFG = (pci_addr >> 16) | 0x10000;
}
pci_addr &= 0xffff;
BONITO_PCIMAP_CFG = (addr >> 16) | type;
/* Flush Bonito register block */
dummy = BONITO_PCIMAP_CFG;
iob(); /* sync */
mmiowb();
/* Perform access */
addrp = CFG_SPACE_REG(addr & 0xffff);
if (access_type == PCI_ACCESS_WRITE) {
*(volatile u32 *) (_pcictrl_bonito_pcicfg + (u32)pci_addr) = *(u32 *) data;
writel(cpu_to_le32(*data), addrp);
#ifndef CONFIG_LEMOTE_FULONG
/* Wait till done */
while (BONITO_PCIMSTAT & 0xF);
#endif
} else {
*(u32 *) data = *(volatile u32 *) (_pcictrl_bonito_pcicfg + (u32)pci_addr);
*data = le32_to_cpu(readl(addrp));
}
/* Detect Master/Target abort */
......@@ -121,6 +98,7 @@ static int bonito64_pcibios_config_access(unsigned char access_type,
}
return 0;
}
......
......@@ -207,6 +207,12 @@
#define MACH_GROUP_NEC_EMMA2RH 25 /* NEC EMMA2RH (was 23) */
#define MACH_NEC_MARKEINS 0 /* NEC EMMA2RH Mark-eins */
/*
* Valid machtype for group LEMOTE
*/
#define MACH_GROUP_LEMOTE 27
#define MACH_LEMOTE_FULONG 0
#define CL_SIZE COMMAND_LINE_SIZE
const char *get_system_type(void);
......
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2006, 07 Ralf Baechle <ralf@linux-mips.org>
* Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
* Author: Fuxin Zhang, zhangfx@lemote.com
*
*/
#ifndef __ASM_MACH_LEMOTE_DMA_COHERENCE_H
#define __ASM_MACH_LEMOTE_DMA_COHERENCE_H
struct device;
static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr,
size_t size)
{
return virt_to_phys(addr) | 0x80000000;
}
static inline dma_addr_t plat_map_dma_mem_page(struct device *dev,
struct page *page)
{
return page_to_phys(page) | 0x80000000;
}
static inline unsigned long plat_dma_addr_to_phys(dma_addr_t dma_addr)
{
return dma_addr & 0x7fffffff;
}
static inline void plat_unmap_dma_mem(dma_addr_t dma_addr)
{
}
static inline int plat_device_is_coherent(struct device *dev)
{
return 0;
}
#endif /* __ASM_MACH_LEMOTE_DMA_COHERENCE_H */
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1998, 2001, 03, 07 by Ralf Baechle (ralf@linux-mips.org)
*
* RTC routines for PC style attached Dallas chip.
*/
#ifndef __ASM_MACH_LEMOTE_MC146818RTC_H
#define __ASM_MACH_LEMOTE_MC146818RTC_H
#include <linux/io.h>
#define RTC_PORT(x) (0x70 + (x))
#define RTC_IRQ 8
static inline unsigned char CMOS_READ(unsigned long addr)
{
outb_p(addr, RTC_PORT(0));
return inb_p(RTC_PORT(1));
}
static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
{
outb_p(addr, RTC_PORT(0));
outb_p(data, RTC_PORT(1));
}
#define RTC_ALWAYS_BCD 0
#ifndef mc146818_decode_year
#define mc146818_decode_year(year) ((year) < 70 ? (year) + 2000 : (year) + 1970)
#endif
#endif /* __ASM_MACH_LEMOTE_MC146818RTC_H */
......@@ -26,7 +26,12 @@
/* offsets from base register */
#define BONITO(x) (x)
#else /* !__ASSEMBLY__ */
#elif defined(CONFIG_LEMOTE_FULONG)
#define BONITO(x) (*(volatile u32 *)((char *)CKSEG1ADDR(BONITO_REG_BASE) + (x)))
#define BONITO_IRQ_BASE 32
#else
/*
* Algorithmics Bonito64 system controller register base.
......
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