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[LV-kern-commit] CVS: kernel-2.4/arch/sh/stboards Makefile,NONE,1.1 harp.h,NONE,1.1 irq.c,NONE,1.1 led.c,NONE,1.1 mach.c,NONE,1.1 pcidma.c,NONE,1.1 setup.c,NONE,1.1
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From: Andy P. <at...@us...> - 2002-04-10 18:40:30
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Update of /cvsroot/linux-vax/kernel-2.4/arch/sh/stboards
In directory usw-pr-cvs1:/tmp/cvs-serv30858/sh/stboards
Added Files:
Makefile harp.h irq.c led.c mach.c pcidma.c setup.c
Log Message:
synch 2.4.15 commit 45
--- NEW FILE ---
#
# Makefile for STMicroelectronics board specific parts of the kernel
#
# Note! Dependencies are done automagically by 'make dep', which also
# removes any old dependencies. DON'T put your own dependencies here
# unless it's something special (ie not a .c file).
#
all: stboards.o
O_TARGET := stboards.o
obj-y := irq.o setup.o mach.o led.o
clean:
include $(TOPDIR)/Rules.make
--- NEW FILE ---
/*
* Copyright (C) 2001 David J. Mckay (dav...@st...)
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
*
* Defintions applicable to the STMicroelectronics ST40STB1 HARP and
* compatible boards.
*/
#if defined(CONFIG_SH_STB1_HARP)
#define EPLD_BASE 0xa0800000
#define EPLD_LED (EPLD_BASE+0x000c0000)
#define EPLD_INTSTAT0 (EPLD_BASE+0x00200000)
#define EPLD_INTSTAT1 (EPLD_BASE+0x00240000)
#define EPLD_INTMASK0 (EPLD_BASE+0x00280000)
#define EPLD_INTMASK1 (EPLD_BASE+0x002c0000)
#define EPLD_PAGEADDR (EPLD_BASE+0x00300000)
#define EPLD_REVID1 (EPLD_BASE+0x00380000)
#define EPLD_REVID2 (EPLD_BASE+0x003c0000)
#define EPLD_LED_ON 1
#define EPLD_LED_OFF 0
#elif defined(CONFIG_SH_STB1_OVERDRIVE)
#define EPLD_BASE 0xa7000000
#define EPLD_REVID (EPLD_BASE+0x00000000)
#define EPLD_LED (EPLD_BASE+0x00040000)
#define EPLD_INTMASK0 (EPLD_BASE+0x001c0000)
#define EPLD_INTMASK1 (EPLD_BASE+0x00200000)
#define EPLD_INTSTAT0 (EPLD_BASE+0x00240000)
#define EPLD_INTSTAT1 (EPLD_BASE+0x00280000)
#define EPLD_LED_ON 0
#define EPLD_LED_OFF 1
#else
#error Unknown board
#endif
--- NEW FILE ---
/*
* Copyright (C) 2000 David J. Mckay (dav...@st...)
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
*
* Looks after interrupts on the HARP board.
*
* Bases on the IPR irq system
*/
#include <linux/config.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <asm/system.h>
#include <asm/io.h>
#include "harp.h"
#define NUM_EXTERNAL_IRQS 16
// Early versions of the STB1 Overdrive required this nasty frig
//#define INVERT_INTMASK_WRITES
static void enable_harp_irq(unsigned int irq);
static void disable_harp_irq(unsigned int irq);
/* shutdown is same as "disable" */
#define shutdown_harp_irq disable_harp_irq
static void mask_and_ack_harp(unsigned int);
static void end_harp_irq(unsigned int irq);
static unsigned int startup_harp_irq(unsigned int irq)
{
enable_harp_irq(irq);
return 0; /* never anything pending */
}
static struct hw_interrupt_type harp_irq_type = {
"Harp-IRQ",
startup_harp_irq,
shutdown_harp_irq,
enable_harp_irq,
disable_harp_irq,
mask_and_ack_harp,
end_harp_irq
};
static void disable_harp_irq(unsigned int irq)
{
unsigned val, flags;
unsigned maskReg;
unsigned mask;
int pri;
if (irq < 0 || irq >= NUM_EXTERNAL_IRQS)
return;
pri = 15 - irq;
if (pri < 8) {
maskReg = EPLD_INTMASK0;
} else {
maskReg = EPLD_INTMASK1;
pri -= 8;
}
save_and_cli(flags);
mask = ctrl_inl(maskReg);
mask &= (~(1 << pri));
#if defined(INVERT_INTMASK_WRITES)
mask ^= 0xff;
#endif
ctrl_outl(mask, maskReg);
restore_flags(flags);
}
static void enable_harp_irq(unsigned int irq)
{
unsigned flags;
unsigned maskReg;
unsigned mask;
int pri;
if (irq < 0 || irq >= NUM_EXTERNAL_IRQS)
return;
pri = 15 - irq;
if (pri < 8) {
maskReg = EPLD_INTMASK0;
} else {
maskReg = EPLD_INTMASK1;
pri -= 8;
}
save_and_cli(flags);
mask = ctrl_inl(maskReg);
mask |= (1 << pri);
#if defined(INVERT_INTMASK_WRITES)
mask ^= 0xff;
#endif
ctrl_outl(mask, maskReg);
restore_flags(flags);
}
/* This functions sets the desired irq handler to be an overdrive type */
static void __init make_harp_irq(unsigned int irq)
{
disable_irq_nosync(irq);
irq_desc[irq].handler = &harp_irq_type;
disable_harp_irq(irq);
}
static void mask_and_ack_harp(unsigned int irq)
{
disable_harp_irq(irq);
}
static void end_harp_irq(unsigned int irq)
{
enable_harp_irq(irq);
}
void __init init_harp_irq(void)
{
int i;
#if !defined(INVERT_INTMASK_WRITES)
// On the harp these are set to enable an interrupt
ctrl_outl(0x00, EPLD_INTMASK0);
ctrl_outl(0x00, EPLD_INTMASK1);
#else
// On the Overdrive the data is inverted before being stored in the reg
ctrl_outl(0xff, EPLD_INTMASK0);
ctrl_outl(0xff, EPLD_INTMASK1);
#endif
for (i = 0; i < NUM_EXTERNAL_IRQS; i++) {
make_harp_irq(i);
}
}
--- NEW FILE ---
/*
* linux/arch/sh/stboards/led.c
*
* Copyright (C) 2000 Stuart Menefy <stu...@st...>
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
*
* This file contains ST40STB1 HARP and compatible code.
*/
#include <linux/config.h>
#include <asm/io.h>
#include "harp.h"
/* Harp: Flash LD10 (front pannel) connected to EPLD (IC8) */
/* Overdrive: Flash LD1 (front panel) connected to EPLD (IC4) */
/* Works for HARP and overdrive */
static void mach_led(int position, int value)
{
if (value) {
ctrl_outl(EPLD_LED_ON, EPLD_LED);
} else {
ctrl_outl(EPLD_LED_OFF, EPLD_LED);
}
}
#ifdef CONFIG_HEARTBEAT
#include <linux/sched.h>
/* acts like an actual heart beat -- ie thump-thump-pause... */
void heartbeat_harp(void)
{
static unsigned cnt = 0, period = 0, dist = 0;
if (cnt == 0 || cnt == dist)
mach_led( -1, 1);
else if (cnt == 7 || cnt == dist+7)
mach_led( -1, 0);
if (++cnt > period) {
cnt = 0;
/* The hyperbolic function below modifies the heartbeat period
* length in dependency of the current (5min) load. It goes
* through the points f(0)=126, f(1)=86, f(5)=51,
* f(inf)->30. */
period = ((672<<FSHIFT)/(5*avenrun[0]+(7<<FSHIFT))) + 30;
dist = period / 4;
}
}
#endif
--- NEW FILE ---
/*
* linux/arch/sh/stboards/mach.c
*
* Copyright (C) 2000 Stuart Menefy (stu...@st...)
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
*
* Machine vector for the STMicroelectronics STB1 HARP and compatible boards
*/
#include <linux/init.h>
#include <asm/machvec.h>
#include <asm/rtc.h>
#include <asm/machvec_init.h>
#include <asm/io_hd64465.h>
#include <asm/hd64465.h>
void setup_harp(void);
void init_harp_irq(void);
void heartbeat_harp(void);
/*
* The Machine Vector
*/
struct sh_machine_vector mv_harp __initmv = {
mv_name: "STB1 Harp",
mv_nr_irqs: 89 + HD64465_IRQ_NUM,
mv_inb: hd64465_inb,
mv_inw: hd64465_inw,
mv_inl: hd64465_inl,
mv_outb: hd64465_outb,
mv_outw: hd64465_outw,
mv_outl: hd64465_outl,
mv_inb_p: hd64465_inb_p,
mv_inw_p: hd64465_inw,
mv_inl_p: hd64465_inl,
mv_outb_p: hd64465_outb_p,
mv_outw_p: hd64465_outw,
mv_outl_p: hd64465_outl,
mv_insb: hd64465_insb,
mv_insw: hd64465_insw,
mv_insl: hd64465_insl,
mv_outsb: hd64465_outsb,
mv_outsw: hd64465_outsw,
mv_outsl: hd64465_outsl,
mv_readb: generic_readb,
mv_readw: generic_readw,
mv_readl: generic_readl,
mv_writeb: generic_writeb,
mv_writew: generic_writew,
mv_writel: generic_writel,
mv_ioremap: generic_ioremap,
mv_iounmap: generic_iounmap,
mv_isa_port2addr: hd64465_isa_port2addr,
mv_init_arch: setup_harp,
#ifdef CONFIG_PCI
mv_init_irq: init_harp_irq,
#endif
#ifdef CONFIG_HEARTBEAT
mv_heartbeat: heartbeat_harp,
#endif
mv_rtc_gettimeofday: sh_rtc_gettimeofday,
mv_rtc_settimeofday: sh_rtc_settimeofday,
};
ALIAS_MV(harp)
--- NEW FILE ---
/*
* Copyright (C) 2001 David J. Mckay (dav...@st...)
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
*
* Dynamic DMA mapping support.
*/
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/string.h>
#include <linux/pci.h>
#include <asm/io.h>
#include <asm/addrspace.h>
void *pci_alloc_consistent(struct pci_dev *hwdev, size_t size,
dma_addr_t * dma_handle)
{
void *ret;
int gfp = GFP_ATOMIC;
ret = (void *) __get_free_pages(gfp, get_order(size));
if (ret != NULL) {
/* Is it neccessary to do the memset? */
memset(ret, 0, size);
*dma_handle = virt_to_bus(ret);
}
/* We must flush the cache before we pass it on to the device */
flush_cache_all();
return P2SEGADDR(ret);
}
void pci_free_consistent(struct pci_dev *hwdev, size_t size,
void *vaddr, dma_addr_t dma_handle)
{
unsigned long p1addr=P1SEGADDR((unsigned long)vaddr);
free_pages(p1addr, get_order(size));
}
--- NEW FILE ---
/*
* arch/sh/stboard/setup.c
*
* Copyright (C) 2001 Stuart Menefy (stu...@st...)
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
*
* STMicroelectronics ST40STB1 HARP and compatible support.
*/
#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <asm/io.h>
#include "harp.h"
/*
* Initialize the board
*/
int __init setup_harp(void)
{
#ifdef CONFIG_SH_STB1_HARP
unsigned long ic8_version, ic36_version;
ic8_version = ctrl_inl(EPLD_REVID2);
ic36_version = ctrl_inl(EPLD_REVID1);
printk("STMicroelectronics STB1 HARP initialisaton\n");
printk("EPLD versions: IC8: %d.%02d, IC36: %d.%02d\n",
(ic8_version >> 4) & 0xf, ic8_version & 0xf,
(ic36_version >> 4) & 0xf, ic36_version & 0xf);
#elif defined(CONFIG_SH_STB1_OVERDRIVE)
unsigned long version;
version = ctrl_inl(EPLD_REVID);
printk("STMicroelectronics STB1 Overdrive initialisaton\n");
printk("EPLD version: %d.%02d\n",
(version >> 4) & 0xf, version & 0xf);
#else
#error Undefined machine
#endif
/* Currently all STB1 chips have problems with the sleep instruction,
* so disable it here.
*/
disable_hlt();
return 0;
}
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