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authorWu Zhangjin <wuzhangjin@gmail.com>2009-07-02 23:26:08 +0800
committerRalf Baechle <ralf@linux-mips.org>2009-09-17 20:07:47 +0200
commit8e4971175acc910eb4258df82a6bd8f2c4e4e5b5 (patch)
tree921d53308d0a8a8e9119ec6b262a01fe0ccd1fd5 /arch/mips/lemote/lm2e
parent67b35e5d01aba7a83f2161b0c90acb08afa01e3e (diff)
MIPS: Loongson: Change naming methods
To make source code of loongson sharable to the machines(such as gdium) made by the other companies, we rename arch/mips/lemote to arch/mips/loongson, asm/mach-lemote to asm/mach-loongson, and rename lm2e to the name of the machine: fuloong-2e. accordingly, FULONG are renamed to FULOONG2E to make it distinguishable to the future FULOONG2F. and also, some other relative tuning is needed. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/lemote/lm2e')
-rw-r--r--arch/mips/lemote/lm2e/Makefile13
-rw-r--r--arch/mips/lemote/lm2e/bonito-irq.c51
-rw-r--r--arch/mips/lemote/lm2e/cmdline.c52
-rw-r--r--arch/mips/lemote/lm2e/early_printk.c39
-rw-r--r--arch/mips/lemote/lm2e/env.c58
-rw-r--r--arch/mips/lemote/lm2e/init.c30
-rw-r--r--arch/mips/lemote/lm2e/irq.c111
-rw-r--r--arch/mips/lemote/lm2e/machtype.c15
-rw-r--r--arch/mips/lemote/lm2e/mem.c36
-rw-r--r--arch/mips/lemote/lm2e/pci.c83
-rw-r--r--arch/mips/lemote/lm2e/setup.c58
-rw-r--r--arch/mips/lemote/lm2e/time.c27
12 files changed, 0 insertions, 573 deletions
diff --git a/arch/mips/lemote/lm2e/Makefile b/arch/mips/lemote/lm2e/Makefile
deleted file mode 100644
index a5bc1efc362..00000000000
--- a/arch/mips/lemote/lm2e/Makefile
+++ /dev/null
@@ -1,13 +0,0 @@
-#
-# Makefile for Lemote Fulong 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
-
-EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/lemote/lm2e/bonito-irq.c b/arch/mips/lemote/lm2e/bonito-irq.c
deleted file mode 100644
index 3e31e7ad713..00000000000
--- a/arch/mips/lemote/lm2e/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 <linux/interrupt.h>
-
-#include <loongson.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);
-}
diff --git a/arch/mips/lemote/lm2e/cmdline.c b/arch/mips/lemote/lm2e/cmdline.c
deleted file mode 100644
index 75f1b243ee4..00000000000
--- a/arch/mips/lemote/lm2e/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 <guoyi@ict.ac.cn>
- *
- * 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 <asm/bootinfo.h>
-
-#include <loongson.h>
-
-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/lemote/lm2e/early_printk.c b/arch/mips/lemote/lm2e/early_printk.c
deleted file mode 100644
index 3e0a6eaa404..00000000000
--- a/arch/mips/lemote/lm2e/early_printk.c
+++ /dev/null
@@ -1,39 +0,0 @@
-/* early printk support
- *
- * 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.
- */
-#include <linux/serial_reg.h>
-
-#include <loongson.h>
-
-#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/lemote/lm2e/env.c b/arch/mips/lemote/lm2e/env.c
deleted file mode 100644
index b9ef5038554..00000000000
--- a/arch/mips/lemote/lm2e/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 <guoyi@ict.ac.cn>
- *
- * 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 <asm/bootinfo.h>
-
-#include <loongson.h>
-
-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/lemote/lm2e/init.c b/arch/mips/lemote/lm2e/init.c
deleted file mode 100644
index 3abe927422a..00000000000
--- a/arch/mips/lemote/lm2e/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 <linux/bootmem.h>
-
-#include <asm/bootinfo.h>
-
-#include <loongson.h>
-
-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/lemote/lm2e/irq.c b/arch/mips/lemote/lm2e/irq.c
deleted file mode 100644
index 9585f5aa7cc..00000000000
--- a/arch/mips/lemote/lm2e/irq.c
+++ /dev/null
@@ -1,111 +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 <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)
-{
- 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_IP6) /* perf counter loverflow */
- do_IRQ(LOONGSON2_PERFCNT_IRQ);
- 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,
- .name = "cascade",
-};
-
-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();
-
- /* 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();
-
- /* 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);
-}
diff --git a/arch/mips/lemote/lm2e/machtype.c b/arch/mips/lemote/lm2e/machtype.c
deleted file mode 100644
index 8d803eea787..00000000000
--- a/arch/mips/lemote/lm2e/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-fulong";
-}
-
diff --git a/arch/mips/lemote/lm2e/mem.c b/arch/mips/lemote/lm2e/mem.c
deleted file mode 100644
index 6a7feb178fa..00000000000
--- a/arch/mips/lemote/lm2e/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 <linux/fs.h>
-#include <linux/fcntl.h>
-#include <linux/mm.h>
-
-#include <asm/bootinfo.h>
-
-#include <loongson.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);
-#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/lemote/lm2e/pci.c b/arch/mips/lemote/lm2e/pci.c
deleted file mode 100644
index 9812c30cc6e..00000000000
--- a/arch/mips/lemote/lm2e/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 <linux/pci.h>
-
-#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,
- .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/lemote/lm2e/setup.c b/arch/mips/lemote/lm2e/setup.c
deleted file mode 100644
index 66390215973..00000000000
--- a/arch/mips/lemote/lm2e/setup.c
+++ /dev/null
@@ -1,58 +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 <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_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)
-{
- __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/lemote/lm2e/time.c b/arch/mips/lemote/lm2e/time.c
deleted file mode 100644
index b13d1717465..00000000000
--- a/arch/mips/lemote/lm2e/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 <asm/mc146818-time.h>
-#include <asm/time.h>
-
-#include <loongson.h>
-
-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();
-}