Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755725AbZGBP1S (ORCPT ); Thu, 2 Jul 2009 11:27:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751885AbZGBP1A (ORCPT ); Thu, 2 Jul 2009 11:27:00 -0400 Received: from mail-ew0-f215.google.com ([209.85.219.215]:55517 "EHLO mail-ew0-f215.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751051AbZGBP06 (ORCPT ); Thu, 2 Jul 2009 11:26:58 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; b=H+OHENP6ZVI9zZYzwsK3+H6lpc5oWUoeIeNgc4ZCTCkSGcbp2SZSIsnp6XXc8Q6FiJ DtTmlLHhZ1BowBh9llycwdy+EM1RO3gqmsd7+HnYk6rRCohhQDZdeYZK9Lwm1e6cW539 YgyKak87mfJ8d+2x3TP9EsHXbng/tulgB+Y7U= From: Wu Zhangjin To: linux-kernel@vger.kernel.org, linux-mips@linux-mips.org, ralf@linux-mips.org Cc: Wu Zhangjin , Yan Hua , Philippe Vachon , Zhang Le , Zhang Fuxin , loongson-dev , Liu Junliang , Erwan Lerale , Arnaud Patard Subject: [PATCH v4 13/16] [loongson] split common loongson source code out Date: Thu, 2 Jul 2009 23:26:45 +0800 Message-Id: <988e19d2c2ed38b3f11d07dc4556707e7d02c5aa.1246546684.git.wuzhangjin@gmail.com> X-Mailer: git-send-email 1.6.2.1 In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 49997 Lines: 1641 to share common loongson source code between all of the loongson-based machines. there is a need to split it out of the fuloong-2e/ directory. at the same time, other according tuning is needed. the machine-specific parts are defined as macros in relative header file, pci.h, mem.h, machine.h. Signed-off-by: Wu Zhangjin --- arch/mips/Kconfig | 32 +++------- arch/mips/Makefile | 7 +- arch/mips/include/asm/mach-loongson/loongson.h | 11 +++ arch/mips/include/asm/mach-loongson/machine.h | 22 ++++++ arch/mips/include/asm/mach-loongson/mem.h | 30 +++++++++ arch/mips/include/asm/mach-loongson/pci.h | 12 +++- arch/mips/loongson/Kconfig | 31 +++++++++ arch/mips/loongson/Makefile | 11 +++ arch/mips/loongson/common/Makefile | 11 +++ arch/mips/loongson/common/bonito-irq.c | 51 +++++++++++++++ arch/mips/loongson/common/cmdline.c | 52 +++++++++++++++ arch/mips/loongson/common/early_printk.c | 38 +++++++++++ arch/mips/loongson/common/env.c | 58 ++++++++++++++++ arch/mips/loongson/common/init.c | 30 +++++++++ arch/mips/loongson/common/irq.c | 74 +++++++++++++++++++++ arch/mips/loongson/common/machtype.c | 17 +++++ arch/mips/loongson/common/mem.c | 35 ++++++++++ arch/mips/loongson/common/pci.c | 83 ++++++++++++++++++++++++ arch/mips/loongson/common/reset.c | 39 +++++++++++ arch/mips/loongson/common/setup.c | 60 +++++++++++++++++ arch/mips/loongson/common/time.c | 27 ++++++++ arch/mips/loongson/fuloong-2e/Makefile | 8 +-- arch/mips/loongson/fuloong-2e/bonito-irq.c | 51 --------------- arch/mips/loongson/fuloong-2e/cmdline.c | 52 --------------- arch/mips/loongson/fuloong-2e/early_printk.c | 39 ----------- arch/mips/loongson/fuloong-2e/env.c | 58 ---------------- arch/mips/loongson/fuloong-2e/init.c | 30 --------- arch/mips/loongson/fuloong-2e/irq.c | 52 ++------------- arch/mips/loongson/fuloong-2e/machtype.c | 15 ---- arch/mips/loongson/fuloong-2e/mem.c | 36 ---------- arch/mips/loongson/fuloong-2e/pci.c | 83 ------------------------ arch/mips/loongson/fuloong-2e/reset.c | 31 ++------- arch/mips/loongson/fuloong-2e/setup.c | 60 ----------------- arch/mips/loongson/fuloong-2e/time.c | 27 -------- 34 files changed, 717 insertions(+), 556 deletions(-) create mode 100644 arch/mips/include/asm/mach-loongson/machine.h create mode 100644 arch/mips/include/asm/mach-loongson/mem.h create mode 100644 arch/mips/loongson/Kconfig create mode 100644 arch/mips/loongson/Makefile create mode 100644 arch/mips/loongson/common/Makefile create mode 100644 arch/mips/loongson/common/bonito-irq.c create mode 100644 arch/mips/loongson/common/cmdline.c create mode 100644 arch/mips/loongson/common/early_printk.c create mode 100644 arch/mips/loongson/common/env.c create mode 100644 arch/mips/loongson/common/init.c create mode 100644 arch/mips/loongson/common/irq.c create mode 100644 arch/mips/loongson/common/machtype.c create mode 100644 arch/mips/loongson/common/mem.c create mode 100644 arch/mips/loongson/common/pci.c create mode 100644 arch/mips/loongson/common/reset.c create mode 100644 arch/mips/loongson/common/setup.c create mode 100644 arch/mips/loongson/common/time.c delete mode 100644 arch/mips/loongson/fuloong-2e/bonito-irq.c delete mode 100644 arch/mips/loongson/fuloong-2e/cmdline.c delete mode 100644 arch/mips/loongson/fuloong-2e/early_printk.c delete mode 100644 arch/mips/loongson/fuloong-2e/env.c delete mode 100644 arch/mips/loongson/fuloong-2e/init.c delete mode 100644 arch/mips/loongson/fuloong-2e/machtype.c delete mode 100644 arch/mips/loongson/fuloong-2e/mem.c delete mode 100644 arch/mips/loongson/fuloong-2e/pci.c delete mode 100644 arch/mips/loongson/fuloong-2e/setup.c delete mode 100644 arch/mips/loongson/fuloong-2e/time.c diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 3414e23..482dcc3 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -174,30 +174,15 @@ config LASAT 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" @@ -668,6 +653,7 @@ source "arch/mips/sibyte/Kconfig" source "arch/mips/txx9/Kconfig" source "arch/mips/vr41xx/Kconfig" source "arch/mips/cavium-octeon/Kconfig" +source "arch/mips/loongson/Kconfig" endmenu diff --git a/arch/mips/Makefile b/arch/mips/Makefile index 7754cbb..94d6f58 100644 --- a/arch/mips/Makefile +++ b/arch/mips/Makefile @@ -314,11 +314,12 @@ cflags-$(CONFIG_WR_PPMC) += -I$(srctree)/arch/mips/include/asm/mach-wrppmc 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 diff --git a/arch/mips/include/asm/mach-loongson/loongson.h b/arch/mips/include/asm/mach-loongson/loongson.h index 95ee4c8..1c6d4a8 100644 --- a/arch/mips/include/asm/mach-loongson/loongson.h +++ b/arch/mips/include/asm/mach-loongson/loongson.h @@ -24,6 +24,10 @@ extern void bonito_irq_init(void); /* loongson-based machines specific reboot setup */ extern void mips_reboot_setup(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; @@ -33,6 +37,13 @@ extern void __init prom_init_memory(void); 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) diff --git a/arch/mips/include/asm/mach-loongson/machine.h b/arch/mips/include/asm/mach-loongson/machine.h new file mode 100644 index 0000000..8e60d36 --- /dev/null +++ b/arch/mips/include/asm/mach-loongson/machine.h @@ -0,0 +1,22 @@ +/* + * Copyright (C) 2009 Lemote, Inc. & Institute of Computing Technology + * Author: Wu Zhangjin + * + * 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 */ diff --git a/arch/mips/include/asm/mach-loongson/mem.h b/arch/mips/include/asm/mach-loongson/mem.h new file mode 100644 index 0000000..bd7b3cb --- /dev/null +++ b/arch/mips/include/asm/mach-loongson/mem.h @@ -0,0 +1,30 @@ +/* + * Copyright (C) 2009 Lemote, Inc. & Institute of Computing Technology + * Author: Wu Zhangjin + * + * 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 */ diff --git a/arch/mips/include/asm/mach-loongson/pci.h b/arch/mips/include/asm/mach-loongson/pci.h index e229b29..f1663ca 100644 --- a/arch/mips/include/asm/mach-loongson/pci.h +++ b/arch/mips/include/asm/mach-loongson/pci.h @@ -24,8 +24,14 @@ 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_ */ diff --git a/arch/mips/loongson/Kconfig b/arch/mips/loongson/Kconfig new file mode 100644 index 0000000..376712a --- /dev/null +++ b/arch/mips/loongson/Kconfig @@ -0,0 +1,31 @@ +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 diff --git a/arch/mips/loongson/Makefile b/arch/mips/loongson/Makefile new file mode 100644 index 0000000..39048c4 --- /dev/null +++ b/arch/mips/loongson/Makefile @@ -0,0 +1,11 @@ +# +# 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/ diff --git a/arch/mips/loongson/common/Makefile b/arch/mips/loongson/common/Makefile new file mode 100644 index 0000000..4e3889d --- /dev/null +++ b/arch/mips/loongson/common/Makefile @@ -0,0 +1,11 @@ +# +# 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 diff --git a/arch/mips/loongson/common/bonito-irq.c b/arch/mips/loongson/common/bonito-irq.c new file mode 100644 index 0000000..3e31e7a --- /dev/null +++ b/arch/mips/loongson/common/bonito-irq.c @@ -0,0 +1,51 @@ +/* + * 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. + */ +#include + +#include + +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); +} diff --git a/arch/mips/loongson/common/cmdline.c b/arch/mips/loongson/common/cmdline.c new file mode 100644 index 0000000..75f1b24 --- /dev/null +++ b/arch/mips/loongson/common/cmdline.c @@ -0,0 +1,52 @@ +/* + * 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 + * + * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology + * Author: Fuxin Zhang, zhangfx@lemote.com + * + * 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. + */ +#include + +#include + +int prom_argc; +/* pmon passes arguments in 32bit pointers */ +int *_prom_argv; + +void __init prom_init_cmdline(void) +{ + int i; + long l; + + /* firmware arguments are initialized in head.S */ + prom_argc = fw_arg0; + _prom_argv = (int *)fw_arg1; + + /* arg[0] is "g", the rest is boot parameters */ + arcs_cmdline[0] = '\0'; + for (i = 1; i < prom_argc; i++) { + l = (long)_prom_argv[i]; + if (strlen(arcs_cmdline) + strlen(((char *)l) + 1) + >= sizeof(arcs_cmdline)) + break; + strcat(arcs_cmdline, ((char *)l)); + strcat(arcs_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"); +} diff --git a/arch/mips/loongson/common/early_printk.c b/arch/mips/loongson/common/early_printk.c new file mode 100644 index 0000000..bc73edc --- /dev/null +++ b/arch/mips/loongson/common/early_printk.c @@ -0,0 +1,38 @@ +/* early printk support + * + * Copyright (c) 2009 Philippe Vachon + * 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. + */ +#include + +#include +#include + +#define PORT(base, offset) (u8 *)(base + offset) + +static inline unsigned int serial_in(phys_addr_t base, int offset) +{ + return readb(PORT(base, offset)); +} + +static inline void serial_out(phys_addr_t base, int offset, int value) +{ + writeb(value, PORT(base, offset)); +} + +void prom_putchar(char c) +{ + phys_addr_t uart_base = + (phys_addr_t) ioremap_nocache(LOONGSON_UART_BASE, 8); + + while ((serial_in(uart_base, UART_LSR) & UART_LSR_THRE) == 0) + ; + + serial_out(uart_base, UART_TX, c); +} diff --git a/arch/mips/loongson/common/env.c b/arch/mips/loongson/common/env.c new file mode 100644 index 0000000..b9ef503 --- /dev/null +++ b/arch/mips/loongson/common/env.c @@ -0,0 +1,58 @@ +/* + * 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 + * + * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology + * Author: Fuxin Zhang, zhangfx@lemote.com + * + * 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. + */ +#include + +#include + +unsigned long bus_clock, cpu_clock_freq; +unsigned long memsize, highmemsize; + +/* pmon passes arguments in 32bit pointers */ +int *_prom_envp; + +#define parse_even_earlier(res, option, p) \ +do { \ + if (strncmp(option, (char *)p, strlen(option)) == 0) \ + strict_strtol((char *)p + strlen(option"="), \ + 10, &res); \ +} while (0) + +void __init prom_init_env(void) +{ + long l; + + /* firmware arguments are initialized in head.S */ + _prom_envp = (int *)fw_arg2; + + l = (long)*_prom_envp; + while (l != 0) { + parse_even_earlier(bus_clock, "busclock", l); + parse_even_earlier(cpu_clock_freq, "cpuclock", l); + parse_even_earlier(memsize, "memsize", l); + parse_even_earlier(highmemsize, "highmemsize", l); + _prom_envp++; + l = (long)*_prom_envp; + } + if (memsize == 0) + memsize = 256; + + pr_info("busclock=%ld, cpuclock=%ld, memsize=%ld, highmemsize=%ld\n", + bus_clock, cpu_clock_freq, memsize, highmemsize); +} diff --git a/arch/mips/loongson/common/init.c b/arch/mips/loongson/common/init.c new file mode 100644 index 0000000..3abe927 --- /dev/null +++ b/arch/mips/loongson/common/init.c @@ -0,0 +1,30 @@ +/* + * 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. + */ + +#include + +#include + +#include + +void __init prom_init(void) +{ + /* init base address of io space */ + set_io_port_base((unsigned long) + ioremap(BONITO_PCIIO_BASE, BONITO_PCIIO_SIZE)); + + prom_init_cmdline(); + prom_init_env(); + prom_init_memory(); +} + +void __init prom_free_prom_memory(void) +{ +} diff --git a/arch/mips/loongson/common/irq.c b/arch/mips/loongson/common/irq.c new file mode 100644 index 0000000..f368c73 --- /dev/null +++ b/arch/mips/loongson/common/irq.c @@ -0,0 +1,74 @@ +/* + * 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 +#include + +#include +/* + * 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(); +} diff --git a/arch/mips/loongson/common/machtype.c b/arch/mips/loongson/common/machtype.c new file mode 100644 index 0000000..845b3fb --- /dev/null +++ b/arch/mips/loongson/common/machtype.c @@ -0,0 +1,17 @@ +/* + * 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. + */ + +#include + +const char *get_system_type(void) +{ + return LOONGSON_MACHNAME; +} + diff --git a/arch/mips/loongson/common/mem.c b/arch/mips/loongson/common/mem.c new file mode 100644 index 0000000..7c92f79 --- /dev/null +++ b/arch/mips/loongson/common/mem.c @@ -0,0 +1,35 @@ +/* + * 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 +#include +#include + +#include + +#include +#include + +void __init prom_init_memory(void) +{ + add_memory_region(0x0, (memsize << 20), BOOT_MEM_RAM); +#ifdef CONFIG_64BIT + if (highmemsize > 0) + add_memory_region(LOONGSON_HIGHMEM_START, + highmemsize << 20, BOOT_MEM_RAM); +#endif /* CONFIG_64BIT */ +} + +/* 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; + + return addr >= __pa(high_memory) || + ((addr >= LOONGSON_MMIO_MEM_START) && + (addr < LOONGSON_MMIO_MEM_END)); +} diff --git a/arch/mips/loongson/common/pci.c b/arch/mips/loongson/common/pci.c new file mode 100644 index 0000000..a3a4abf --- /dev/null +++ b/arch/mips/loongson/common/pci.c @@ -0,0 +1,83 @@ +/* + * 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. + */ +#include + +#include +#include + +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 loongson_pci_io_resource = { + .name = "pci io space", + .start = LOONGSON_PCI_IO_START, + .end = IO_SPACE_LIMIT, + .flags = IORESOURCE_IO, +}; + +static struct pci_controller loongson_pci_controller = { + .pci_ops = &bonito64_pci_ops, + .io_resource = &loongson_pci_io_resource, + .mem_resource = &loongson_pci_mem_resource, + .mem_offset = 0x00000000UL, + .io_offset = 0x00000000UL, +}; + +static void __init setup_pcimap(void) +{ + /* + * local to PCI mapping for CPU accessing PCI space + * CPU address space [256M,448M] is window for accessing pci space + * we set pcimap_lo[0,1,2] to map it to pci space[0M,64M], [320M,448M] + * + * pcimap: PCI_MAP2 PCI_Mem_Lo2 PCI_Mem_Lo1 PCI_Mem_Lo0 + * [<2G] [384M,448M] [320M,384M] [0M,64M] + */ + BONITO_PCIMAP = BONITO_PCIMAP_PCIMAP_2 | + BONITO_PCIMAP_WIN(2, BONITO_PCILO2_BASE) | + BONITO_PCIMAP_WIN(1, BONITO_PCILO1_BASE) | + BONITO_PCIMAP_WIN(0, 0); + + /* + * PCI-DMA to local mapping: [2G,2G+256M] -> [0M,256M] + */ + BONITO_PCIBASE0 = 0x80000000ul; /* base: 2G -> mmap: 0M */ + /* size: 256M, burst transmission, pre-fetch enable, 64bit */ + LOONGSON_PCI_HIT0_SEL_L = 0xc000000cul; + LOONGSON_PCI_HIT0_SEL_H = 0xfffffffful; + LOONGSON_PCI_HIT1_SEL_L = 0x00000006ul; /* set this BAR as invalid */ + LOONGSON_PCI_HIT1_SEL_H = 0x00000000ul; + LOONGSON_PCI_HIT2_SEL_L = 0x00000006ul; /* set this BAR as invalid */ + LOONGSON_PCI_HIT2_SEL_H = 0x00000000ul; + + /* avoid deadlock of PCI reading/writing lock operation */ + LOONGSON_PCI_ISR4C = 0xd2000001ul; + + /* can not change gnt to break pci transfer when device's gnt not + deassert for some broken device */ + LOONGSON_PXARB_CFG = 0x00fe0105ul; +} + +static int __init pcibios_init(void) +{ + setup_pcimap(); + + loongson_pci_controller.io_map_base = mips_io_port_base; + + register_pci_controller(&loongson_pci_controller); + + return 0; +} + +arch_initcall(pcibios_init); diff --git a/arch/mips/loongson/common/reset.c b/arch/mips/loongson/common/reset.c new file mode 100644 index 0000000..8f67c00 --- /dev/null +++ b/arch/mips/loongson/common/reset.c @@ -0,0 +1,39 @@ +/* + * 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 + +#include + +#include + +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) + ; +} + +void mips_reboot_setup(void) +{ + _machine_restart = loongson_restart; + _machine_halt = loongson_halt; + pm_power_off = loongson_halt; +} diff --git a/arch/mips/loongson/common/setup.c b/arch/mips/loongson/common/setup.c new file mode 100644 index 0000000..aaa070c --- /dev/null +++ b/arch/mips/loongson/common/setup.c @@ -0,0 +1,60 @@ +/* + * 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 + +#include + +#include + +#ifdef CONFIG_VT +#include +#include +#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) +{ + mips_reboot_setup(); + + __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 +} diff --git a/arch/mips/loongson/common/time.c b/arch/mips/loongson/common/time.c new file mode 100644 index 0000000..b13d171 --- /dev/null +++ b/arch/mips/loongson/common/time.c @@ -0,0 +1,27 @@ +/* + * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology + * Author: Fuxin Zhang, zhangfx@lemote.com + * + * 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. + */ +#include +#include + +#include + +void __init plat_time_init(void) +{ + /* setup mips r4k timer */ + mips_hpt_frequency = cpu_clock_freq / 2; +} + +unsigned long read_persistent_clock(void) +{ + return mc146818_get_cmos_time(); +} diff --git a/arch/mips/loongson/fuloong-2e/Makefile b/arch/mips/loongson/fuloong-2e/Makefile index feb1d6b..96e45c1 100644 --- a/arch/mips/loongson/fuloong-2e/Makefile +++ b/arch/mips/loongson/fuloong-2e/Makefile @@ -2,12 +2,6 @@ # 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 diff --git a/arch/mips/loongson/fuloong-2e/bonito-irq.c b/arch/mips/loongson/fuloong-2e/bonito-irq.c deleted file mode 100644 index 3e31e7a..0000000 --- a/arch/mips/loongson/fuloong-2e/bonito-irq.c +++ /dev/null @@ -1,51 +0,0 @@ -/* - * 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. - */ -#include - -#include - -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); -} diff --git a/arch/mips/loongson/fuloong-2e/cmdline.c b/arch/mips/loongson/fuloong-2e/cmdline.c deleted file mode 100644 index 75f1b24..0000000 --- a/arch/mips/loongson/fuloong-2e/cmdline.c +++ /dev/null @@ -1,52 +0,0 @@ -/* - * 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 - * - * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology - * Author: Fuxin Zhang, zhangfx@lemote.com - * - * 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. - */ -#include - -#include - -int prom_argc; -/* pmon passes arguments in 32bit pointers */ -int *_prom_argv; - -void __init prom_init_cmdline(void) -{ - int i; - long l; - - /* firmware arguments are initialized in head.S */ - prom_argc = fw_arg0; - _prom_argv = (int *)fw_arg1; - - /* arg[0] is "g", the rest is boot parameters */ - arcs_cmdline[0] = '\0'; - for (i = 1; i < prom_argc; i++) { - l = (long)_prom_argv[i]; - if (strlen(arcs_cmdline) + strlen(((char *)l) + 1) - >= sizeof(arcs_cmdline)) - break; - strcat(arcs_cmdline, ((char *)l)); - strcat(arcs_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"); -} diff --git a/arch/mips/loongson/fuloong-2e/early_printk.c b/arch/mips/loongson/fuloong-2e/early_printk.c deleted file mode 100644 index 3e0a6ea..0000000 --- a/arch/mips/loongson/fuloong-2e/early_printk.c +++ /dev/null @@ -1,39 +0,0 @@ -/* early printk support - * - * Copyright (c) 2009 Philippe Vachon - * 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. - */ -#include - -#include - -#define UART_BASE (BONITO_PCIIO_BASE + 0x3f8) - -#define PORT(base, offset) (u8 *)(base + offset) - -static inline unsigned int serial_in(phys_addr_t base, int offset) -{ - return readb(PORT(base, offset)); -} - -static inline void serial_out(phys_addr_t base, int offset, int value) -{ - writeb(value, PORT(base, offset)); -} - -void prom_putchar(char c) -{ - phys_addr_t uart_base = - (phys_addr_t) ioremap_nocache(UART_BASE, 8); - - while ((serial_in(uart_base, UART_LSR) & UART_LSR_THRE) == 0) - ; - - serial_out(uart_base, UART_TX, c); -} diff --git a/arch/mips/loongson/fuloong-2e/env.c b/arch/mips/loongson/fuloong-2e/env.c deleted file mode 100644 index b9ef503..0000000 --- a/arch/mips/loongson/fuloong-2e/env.c +++ /dev/null @@ -1,58 +0,0 @@ -/* - * 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 - * - * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology - * Author: Fuxin Zhang, zhangfx@lemote.com - * - * 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. - */ -#include - -#include - -unsigned long bus_clock, cpu_clock_freq; -unsigned long memsize, highmemsize; - -/* pmon passes arguments in 32bit pointers */ -int *_prom_envp; - -#define parse_even_earlier(res, option, p) \ -do { \ - if (strncmp(option, (char *)p, strlen(option)) == 0) \ - strict_strtol((char *)p + strlen(option"="), \ - 10, &res); \ -} while (0) - -void __init prom_init_env(void) -{ - long l; - - /* firmware arguments are initialized in head.S */ - _prom_envp = (int *)fw_arg2; - - l = (long)*_prom_envp; - while (l != 0) { - parse_even_earlier(bus_clock, "busclock", l); - parse_even_earlier(cpu_clock_freq, "cpuclock", l); - parse_even_earlier(memsize, "memsize", l); - parse_even_earlier(highmemsize, "highmemsize", l); - _prom_envp++; - l = (long)*_prom_envp; - } - if (memsize == 0) - memsize = 256; - - pr_info("busclock=%ld, cpuclock=%ld, memsize=%ld, highmemsize=%ld\n", - bus_clock, cpu_clock_freq, memsize, highmemsize); -} diff --git a/arch/mips/loongson/fuloong-2e/init.c b/arch/mips/loongson/fuloong-2e/init.c deleted file mode 100644 index 3abe927..0000000 --- a/arch/mips/loongson/fuloong-2e/init.c +++ /dev/null @@ -1,30 +0,0 @@ -/* - * 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. - */ - -#include - -#include - -#include - -void __init prom_init(void) -{ - /* init base address of io space */ - set_io_port_base((unsigned long) - ioremap(BONITO_PCIIO_BASE, BONITO_PCIIO_SIZE)); - - prom_init_cmdline(); - prom_init_env(); - prom_init_memory(); -} - -void __init prom_free_prom_memory(void) -{ -} diff --git a/arch/mips/loongson/fuloong-2e/irq.c b/arch/mips/loongson/fuloong-2e/irq.c index 9585f5a..7888cf6 100644 --- a/arch/mips/loongson/fuloong-2e/irq.c +++ b/arch/mips/loongson/fuloong-2e/irq.c @@ -7,39 +7,12 @@ * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. */ -#include #include #include #include #include -/* - * 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) { @@ -52,10 +25,8 @@ 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 */ @@ -73,26 +44,15 @@ static struct irqaction cascade_irqaction = { .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 diff --git a/arch/mips/loongson/fuloong-2e/machtype.c b/arch/mips/loongson/fuloong-2e/machtype.c deleted file mode 100644 index e03aa0d..0000000 --- a/arch/mips/loongson/fuloong-2e/machtype.c +++ /dev/null @@ -1,15 +0,0 @@ -/* - * 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. - */ - -const char *get_system_type(void) -{ - return "lemote-fuloong-2e-box"; -} - diff --git a/arch/mips/loongson/fuloong-2e/mem.c b/arch/mips/loongson/fuloong-2e/mem.c deleted file mode 100644 index 6a7feb1..0000000 --- a/arch/mips/loongson/fuloong-2e/mem.c +++ /dev/null @@ -1,36 +0,0 @@ -/* - * 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 -#include -#include - -#include - -#include - -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); -#endif /* CONFIG_64BIT */ -} - -/* 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)); -} diff --git a/arch/mips/loongson/fuloong-2e/pci.c b/arch/mips/loongson/fuloong-2e/pci.c deleted file mode 100644 index 9812c30..0000000 --- a/arch/mips/loongson/fuloong-2e/pci.c +++ /dev/null @@ -1,83 +0,0 @@ -/* - * 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. - */ -#include - -#include -#include - -static struct resource loongson2e_pci_mem_resource = { - .name = "LOONGSON2E PCI MEM", - .start = LOONGSON2E_PCI_MEM_START, - .end = LOONGSON2E_PCI_MEM_END, - .flags = IORESOURCE_MEM, -}; - -static struct resource loongson2e_pci_io_resource = { - .name = "LOONGSON2E PCI IO MEM", - .start = LOONGSON2E_PCI_IO_START, - .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 setup_pcimap(void) -{ - /* - * local to PCI mapping for CPU accessing PCI space - * CPU address space [256M,448M] is window for accessing pci space - * we set pcimap_lo[0,1,2] to map it to pci space[0M,64M], [320M,448M] - * - * pcimap: PCI_MAP2 PCI_Mem_Lo2 PCI_Mem_Lo1 PCI_Mem_Lo0 - * [<2G] [384M,448M] [320M,384M] [0M,64M] - */ - BONITO_PCIMAP = BONITO_PCIMAP_PCIMAP_2 | - BONITO_PCIMAP_WIN(2, BONITO_PCILO2_BASE) | - BONITO_PCIMAP_WIN(1, BONITO_PCILO1_BASE) | - BONITO_PCIMAP_WIN(0, 0); - - /* - * PCI-DMA to local mapping: [2G,2G+256M] -> [0M,256M] - */ - BONITO_PCIBASE0 = 0x80000000ul; /* base: 2G -> mmap: 0M */ - /* size: 256M, burst transmission, pre-fetch enable, 64bit */ - LOONGSON_PCI_HIT0_SEL_L = 0xc000000cul; - LOONGSON_PCI_HIT0_SEL_H = 0xfffffffful; - LOONGSON_PCI_HIT1_SEL_L = 0x00000006ul; /* set this BAR as invalid */ - LOONGSON_PCI_HIT1_SEL_H = 0x00000000ul; - LOONGSON_PCI_HIT2_SEL_L = 0x00000006ul; /* set this BAR as invalid */ - LOONGSON_PCI_HIT2_SEL_H = 0x00000000ul; - - /* avoid deadlock of PCI reading/writing lock operation */ - LOONGSON_PCI_ISR4C = 0xd2000001ul; - - /* can not change gnt to break pci transfer when device's gnt not - deassert for some broken device */ - LOONGSON_PXARB_CFG = 0x00fe0105ul; -} - -static int __init pcibios_init(void) -{ - setup_pcimap(); - - loongson2e_pci_controller.io_map_base = mips_io_port_base; - - register_pci_controller(&loongson2e_pci_controller); - - return 0; -} - -arch_initcall(pcibios_init); diff --git a/arch/mips/loongson/fuloong-2e/reset.c b/arch/mips/loongson/fuloong-2e/reset.c index d89c9e4..17f8237 100644 --- a/arch/mips/loongson/fuloong-2e/reset.c +++ b/arch/mips/loongson/fuloong-2e/reset.c @@ -1,39 +1,24 @@ -/* +/* Board-specific reboot/shutdown routines + * Copyright (c) 2009 Philippe Vachon + * + * 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 - -#include #include -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) - ; } -void mips_reboot_setup(void) -{ - _machine_restart = loongson2e_restart; - _machine_halt = loongson2e_halt; - pm_power_off = loongson2e_halt; -} diff --git a/arch/mips/loongson/fuloong-2e/setup.c b/arch/mips/loongson/fuloong-2e/setup.c deleted file mode 100644 index 655695c..0000000 --- a/arch/mips/loongson/fuloong-2e/setup.c +++ /dev/null @@ -1,60 +0,0 @@ -/* - * 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 - -#include - -#include - -#ifdef CONFIG_VT -#include -#include -#endif - -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) -{ - mips_reboot_setup(); - - __wbflush = wbflush_loongson2e; - -#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 -} diff --git a/arch/mips/loongson/fuloong-2e/time.c b/arch/mips/loongson/fuloong-2e/time.c deleted file mode 100644 index b13d171..0000000 --- a/arch/mips/loongson/fuloong-2e/time.c +++ /dev/null @@ -1,27 +0,0 @@ -/* - * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology - * Author: Fuxin Zhang, zhangfx@lemote.com - * - * 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. - */ -#include -#include - -#include - -void __init plat_time_init(void) -{ - /* setup mips r4k timer */ - mips_hpt_frequency = cpu_clock_freq / 2; -} - -unsigned long read_persistent_clock(void) -{ - return mc146818_get_cmos_time(); -} -- 1.6.2.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/