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-rw-r--r--arch/sh/boards/mpc1211/Makefile8
-rw-r--r--arch/sh/boards/mpc1211/led.c64
-rw-r--r--arch/sh/boards/mpc1211/pci.c296
-rw-r--r--arch/sh/boards/mpc1211/rtc.c152
-rw-r--r--arch/sh/boards/mpc1211/setup.c360
5 files changed, 880 insertions, 0 deletions
diff --git a/arch/sh/boards/mpc1211/Makefile b/arch/sh/boards/mpc1211/Makefile
new file mode 100644
index 00000000000..1644ebed78c
--- /dev/null
+++ b/arch/sh/boards/mpc1211/Makefile
@@ -0,0 +1,8 @@
+#
+# Makefile for the Interface (CTP/PCI/MPC-SH02) specific parts of the kernel
+#
+
+obj-y := setup.o rtc.o led.o
+
+obj-$(CONFIG_PCI) += pci.o
+
diff --git a/arch/sh/boards/mpc1211/led.c b/arch/sh/boards/mpc1211/led.c
new file mode 100644
index 00000000000..0a31beec346
--- /dev/null
+++ b/arch/sh/boards/mpc1211/led.c
@@ -0,0 +1,64 @@
+/*
+ * linux/arch/sh/kernel/led_mpc1211.c
+ *
+ * Copyright (C) 2001 Saito.K & Jeanne
+ *
+ * This file contains Interface MPC-1211 specific LED code.
+ */
+
+#include <linux/config.h>
+
+static void mach_led(int position, int value)
+{
+ volatile unsigned char* p = (volatile unsigned char*)0xa2000000;
+
+ if (value) {
+ *p |= 1;
+ } else {
+ *p &= ~1;
+ }
+}
+
+#ifdef CONFIG_HEARTBEAT
+
+#include <linux/sched.h>
+
+/* Cycle the LED's in the clasic Knightrider/Sun pattern */
+void heartbeat_mpc1211(void)
+{
+ static unsigned int cnt = 0, period = 0;
+ volatile unsigned char* p = (volatile unsigned char*)0xa2000000;
+ static unsigned bit = 0, up = 1;
+
+ cnt += 1;
+ if (cnt < period) {
+ return;
+ }
+
+ cnt = 0;
+
+ /* Go through the points (roughly!):
+ * f(0)=10, f(1)=16, f(2)=20, f(5)=35,f(inf)->110
+ */
+ period = 110 - ( (300<<FSHIFT)/
+ ((avenrun[0]/5) + (3<<FSHIFT)) );
+
+ if (up) {
+ if (bit == 7) {
+ bit--;
+ up=0;
+ } else {
+ bit ++;
+ }
+ } else {
+ if (bit == 0) {
+ bit++;
+ up=1;
+ } else {
+ bit--;
+ }
+ }
+ *p = 1<<bit;
+
+}
+#endif /* CONFIG_HEARTBEAT */
diff --git a/arch/sh/boards/mpc1211/pci.c b/arch/sh/boards/mpc1211/pci.c
new file mode 100644
index 00000000000..ba3a6543975
--- /dev/null
+++ b/arch/sh/boards/mpc1211/pci.c
@@ -0,0 +1,296 @@
+/*
+ * Low-Level PCI Support for the MPC-1211(CTP/PCI/MPC-SH02)
+ *
+ * (c) 2002-2003 Saito.K & Jeanne
+ *
+ * Dustin McIntire (dustin@sensoria.com)
+ * Derived from arch/i386/kernel/pci-*.c which bore the message:
+ * (c) 1999--2000 Martin Mares <mj@ucw.cz>
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License. See linux/COPYING for more information.
+ *
+ */
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/ioport.h>
+#include <linux/errno.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+
+#include <asm/machvec.h>
+#include <asm/io.h>
+#include <asm/mpc1211/pci.h>
+
+static struct resource mpcpci_io_resource = {
+ "MPCPCI IO",
+ 0x00000000,
+ 0xffffffff,
+ IORESOURCE_IO
+};
+
+static struct resource mpcpci_mem_resource = {
+ "MPCPCI mem",
+ 0x00000000,
+ 0xffffffff,
+ IORESOURCE_MEM
+};
+
+static struct pci_ops pci_direct_conf1;
+struct pci_channel board_pci_channels[] = {
+ {&pci_direct_conf1, &mpcpci_io_resource, &mpcpci_mem_resource, 0, 256},
+ {NULL, NULL, NULL, 0, 0},
+};
+
+/*
+ * Direct access to PCI hardware...
+ */
+
+
+#define CONFIG_CMD(bus, devfn, where) (0x80000000 | (bus->number << 16) | (devfn << 8) | (where & ~3))
+
+/*
+ * Functions for accessing PCI configuration space with type 1 accesses
+ */
+static int pci_conf1_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *value)
+{
+ u32 word;
+ unsigned long flags;
+
+ /*
+ * PCIPDR may only be accessed as 32 bit words,
+ * so we must do byte alignment by hand
+ */
+ local_irq_save(flags);
+ writel(CONFIG_CMD(bus,devfn,where), PCIPAR);
+ word = readl(PCIPDR);
+ local_irq_restore(flags);
+
+ switch (size) {
+ case 1:
+ switch (where & 0x3) {
+ case 3:
+ *value = (u8)(word >> 24);
+ break;
+ case 2:
+ *value = (u8)(word >> 16);
+ break;
+ case 1:
+ *value = (u8)(word >> 8);
+ break;
+ default:
+ *value = (u8)word;
+ break;
+ }
+ break;
+ case 2:
+ switch (where & 0x3) {
+ case 3:
+ *value = (u16)(word >> 24);
+ local_irq_save(flags);
+ writel(CONFIG_CMD(bus,devfn,(where+1)), PCIPAR);
+ word = readl(PCIPDR);
+ local_irq_restore(flags);
+ *value |= ((word & 0xff) << 8);
+ break;
+ case 2:
+ *value = (u16)(word >> 16);
+ break;
+ case 1:
+ *value = (u16)(word >> 8);
+ break;
+ default:
+ *value = (u16)word;
+ break;
+ }
+ break;
+ case 4:
+ *value = word;
+ break;
+ }
+ PCIDBG(4,"pci_conf1_read@0x%08x=0x%x\n", CONFIG_CMD(bus,devfn,where),*value);
+ return PCIBIOS_SUCCESSFUL;
+}
+
+/*
+ * Since MPC-1211 only does 32bit access we'll have to do a read,mask,write operation.
+ * We'll allow an odd byte offset, though it should be illegal.
+ */
+static int pci_conf1_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 value)
+{
+ u32 word,mask = 0;
+ unsigned long flags;
+ u32 shift = (where & 3) * 8;
+
+ if(size == 1) {
+ mask = ((1 << 8) - 1) << shift; // create the byte mask
+ } else if(size == 2){
+ if(shift == 24)
+ return PCIBIOS_BAD_REGISTER_NUMBER;
+ mask = ((1 << 16) - 1) << shift; // create the word mask
+ }
+ local_irq_save(flags);
+ writel(CONFIG_CMD(bus,devfn,where), PCIPAR);
+ if(size == 4){
+ writel(value, PCIPDR);
+ local_irq_restore(flags);
+ PCIDBG(4,"pci_conf1_write@0x%08x=0x%x\n", CONFIG_CMD(bus,devfn,where),value);
+ return PCIBIOS_SUCCESSFUL;
+ }
+ word = readl(PCIPDR);
+ word &= ~mask;
+ word |= ((value << shift) & mask);
+ writel(word, PCIPDR);
+ local_irq_restore(flags);
+ PCIDBG(4,"pci_conf1_write@0x%08x=0x%x\n", CONFIG_CMD(bus,devfn,where),word);
+ return PCIBIOS_SUCCESSFUL;
+}
+
+#undef CONFIG_CMD
+
+static struct pci_ops pci_direct_conf1 = {
+ .read = pci_conf1_read,
+ .write = pci_conf1_write,
+};
+
+static void __devinit quirk_ali_ide_ports(struct pci_dev *dev)
+{
+ dev->resource[0].start = 0x1f0;
+ dev->resource[0].end = 0x1f7;
+ dev->resource[0].flags = IORESOURCE_IO;
+ dev->resource[1].start = 0x3f6;
+ dev->resource[1].end = 0x3f6;
+ dev->resource[1].flags = IORESOURCE_IO;
+ dev->resource[2].start = 0x170;
+ dev->resource[2].end = 0x177;
+ dev->resource[2].flags = IORESOURCE_IO;
+ dev->resource[3].start = 0x376;
+ dev->resource[3].end = 0x376;
+ dev->resource[3].flags = IORESOURCE_IO;
+ dev->resource[4].start = 0xf000;
+ dev->resource[4].end = 0xf00f;
+ dev->resource[4].flags = IORESOURCE_IO;
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5229, quirk_ali_ide_ports);
+
+char * __devinit pcibios_setup(char *str)
+{
+ return str;
+}
+
+/*
+ * Called after each bus is probed, but before its children
+ * are examined.
+ */
+
+void __init pcibios_fixup_bus(struct pci_bus *b)
+{
+ pci_read_bridge_bases(b);
+}
+
+/*
+ * IRQ functions
+ */
+static inline u8 bridge_swizzle(u8 pin, u8 slot)
+{
+ return (((pin-1) + slot) % 4) + 1;
+}
+
+static inline u8 bridge_swizzle_pci_1(u8 pin, u8 slot)
+{
+ return (((pin-1) - slot) & 3) + 1;
+}
+
+static u8 __init mpc1211_swizzle(struct pci_dev *dev, u8 *pinp)
+{
+ unsigned long flags;
+ u8 pin = *pinp;
+ u32 word;
+
+ for ( ; dev->bus->self; dev = dev->bus->self) {
+ if (!pin)
+ continue;
+
+ if (dev->bus->number == 1) {
+ local_irq_save(flags);
+ writel(0x80000000 | 0x2c, PCIPAR);
+ word = readl(PCIPDR);
+ local_irq_restore(flags);
+ word >>= 16;
+
+ if (word == 0x0001)
+ pin = bridge_swizzle_pci_1(pin, PCI_SLOT(dev->devfn));
+ else
+ pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn));
+ } else
+ pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn));
+ }
+
+ *pinp = pin;
+
+ return PCI_SLOT(dev->devfn);
+}
+
+static int __init map_mpc1211_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+ int irq = -1;
+
+ /* now lookup the actual IRQ on a platform specific basis (pci-'platform'.c) */
+ if (dev->bus->number == 0) {
+ switch (slot) {
+ case 13: irq = 9; break; /* USB */
+ case 22: irq = 10; break; /* LAN */
+ default: irq = 0; break;
+ }
+ } else {
+ switch (pin) {
+ case 0: irq = 0; break;
+ case 1: irq = 7; break;
+ case 2: irq = 9; break;
+ case 3: irq = 10; break;
+ case 4: irq = 11; break;
+ }
+ }
+
+ if( irq < 0 ) {
+ PCIDBG(3, "PCI: Error mapping IRQ on device %s\n", pci_name(dev));
+ return irq;
+ }
+
+ PCIDBG(2, "Setting IRQ for slot %s to %d\n", pci_name(dev), irq);
+
+ return irq;
+}
+
+void __init pcibios_fixup_irqs(void)
+{
+ pci_fixup_irqs(mpc1211_swizzle, map_mpc1211_irq);
+}
+
+void pcibios_align_resource(void *data, struct resource *res,
+ unsigned long size, unsigned long align)
+{
+ unsigned long start = res->start;
+
+ if (res->flags & IORESOURCE_IO) {
+ if (start >= 0x10000UL) {
+ if ((start & 0xffffUL) < 0x4000UL) {
+ start = (start & 0xffff0000UL) + 0x4000UL;
+ } else if ((start & 0xffffUL) >= 0xf000UL) {
+ start = (start & 0xffff0000UL) + 0x10000UL;
+ }
+ res->start = start;
+ } else {
+ if (start & 0x300) {
+ start = (start + 0x3ff) & ~0x3ff;
+ res->start = start;
+ }
+ }
+ }
+}
+
diff --git a/arch/sh/boards/mpc1211/rtc.c b/arch/sh/boards/mpc1211/rtc.c
new file mode 100644
index 00000000000..4d100f04807
--- /dev/null
+++ b/arch/sh/boards/mpc1211/rtc.c
@@ -0,0 +1,152 @@
+/*
+ * linux/arch/sh/kernel/rtc-mpc1211.c -- MPC-1211 on-chip RTC support
+ *
+ * Copyright (C) 2002 Saito.K & Jeanne
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/time.h>
+#include <linux/mc146818rtc.h>
+
+#ifndef BCD_TO_BIN
+#define BCD_TO_BIN(val) ((val)=((val)&15) + ((val)>>4)*10)
+#endif
+
+#ifndef BIN_TO_BCD
+#define BIN_TO_BCD(val) ((val)=(((val)/10)<<4) + (val)%10)
+#endif
+
+/* arc/i386/kernel/time.c */
+unsigned long get_cmos_time(void)
+{
+ unsigned int year, mon, day, hour, min, sec;
+ int i;
+
+ spin_lock(&rtc_lock);
+ /* The Linux interpretation of the CMOS clock register contents:
+ * When the Update-In-Progress (UIP) flag goes from 1 to 0, the
+ * RTC registers show the second which has precisely just started.
+ * Let's hope other operating systems interpret the RTC the same way.
+ */
+ /* read RTC exactly on falling edge of update flag */
+ for (i = 0 ; i < 1000000 ; i++) /* may take up to 1 second... */
+ if (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP)
+ break;
+ for (i = 0 ; i < 1000000 ; i++) /* must try at least 2.228 ms */
+ if (!(CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP))
+ break;
+ do { /* Isn't this overkill ? UIP above should guarantee consistency */
+ sec = CMOS_READ(RTC_SECONDS);
+ min = CMOS_READ(RTC_MINUTES);
+ hour = CMOS_READ(RTC_HOURS);
+ day = CMOS_READ(RTC_DAY_OF_MONTH);
+ mon = CMOS_READ(RTC_MONTH);
+ year = CMOS_READ(RTC_YEAR);
+ } while (sec != CMOS_READ(RTC_SECONDS));
+ if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
+ {
+ BCD_TO_BIN(sec);
+ BCD_TO_BIN(min);
+ BCD_TO_BIN(hour);
+ BCD_TO_BIN(day);
+ BCD_TO_BIN(mon);
+ BCD_TO_BIN(year);
+ }
+ spin_unlock(&rtc_lock);
+ if ((year += 1900) < 1970)
+ year += 100;
+ return mktime(year, mon, day, hour, min, sec);
+}
+
+void mpc1211_rtc_gettimeofday(struct timeval *tv)
+{
+
+ tv->tv_sec = get_cmos_time();
+ tv->tv_usec = 0;
+}
+
+/* arc/i386/kernel/time.c */
+/*
+ * In order to set the CMOS clock precisely, set_rtc_mmss has to be
+ * called 500 ms after the second nowtime has started, because when
+ * nowtime is written into the registers of the CMOS clock, it will
+ * jump to the next second precisely 500 ms later. Check the Motorola
+ * MC146818A or Dallas DS12887 data sheet for details.
+ *
+ * BUG: This routine does not handle hour overflow properly; it just
+ * sets the minutes. Usually you'll only notice that after reboot!
+ */
+static int set_rtc_mmss(unsigned long nowtime)
+{
+ int retval = 0;
+ int real_seconds, real_minutes, cmos_minutes;
+ unsigned char save_control, save_freq_select;
+
+ /* gets recalled with irq locally disabled */
+ spin_lock(&rtc_lock);
+ save_control = CMOS_READ(RTC_CONTROL); /* tell the clock it's being set */
+ CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL);
+
+ save_freq_select = CMOS_READ(RTC_FREQ_SELECT); /* stop and reset prescaler */
+ CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT);
+
+ cmos_minutes = CMOS_READ(RTC_MINUTES);
+ if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
+ BCD_TO_BIN(cmos_minutes);
+
+ /*
+ * since we're only adjusting minutes and seconds,
+ * don't interfere with hour overflow. This avoids
+ * messing with unknown time zones but requires your
+ * RTC not to be off by more than 15 minutes
+ */
+ real_seconds = nowtime % 60;
+ real_minutes = nowtime / 60;
+ if (((abs(real_minutes - cmos_minutes) + 15)/30) & 1)
+ real_minutes += 30; /* correct for half hour time zone */
+ real_minutes %= 60;
+
+ if (abs(real_minutes - cmos_minutes) < 30) {
+ if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
+ BIN_TO_BCD(real_seconds);
+ BIN_TO_BCD(real_minutes);
+ }
+ CMOS_WRITE(real_seconds,RTC_SECONDS);
+ CMOS_WRITE(real_minutes,RTC_MINUTES);
+ } else {
+ printk(KERN_WARNING
+ "set_rtc_mmss: can't update from %d to %d\n",
+ cmos_minutes, real_minutes);
+ retval = -1;
+ }
+
+ /* The following flags have to be released exactly in this order,
+ * otherwise the DS12887 (popular MC146818A clone with integrated
+ * battery and quartz) will not reset the oscillator and will not
+ * update precisely 500 ms later. You won't find this mentioned in
+ * the Dallas Semiconductor data sheets, but who believes data
+ * sheets anyway ... -- Markus Kuhn
+ */
+ CMOS_WRITE(save_control, RTC_CONTROL);
+ CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT);
+ spin_unlock(&rtc_lock);
+
+ return retval;
+}
+
+int mpc1211_rtc_settimeofday(const struct timeval *tv)
+{
+ unsigned long nowtime = tv->tv_sec;
+
+ return set_rtc_mmss(nowtime);
+}
+
+void mpc1211_time_init(void)
+{
+ rtc_get_time = mpc1211_rtc_gettimeofday;
+ rtc_set_time = mpc1211_rtc_settimeofday;
+}
+
diff --git a/arch/sh/boards/mpc1211/setup.c b/arch/sh/boards/mpc1211/setup.c
new file mode 100644
index 00000000000..2bb581b9168
--- /dev/null
+++ b/arch/sh/boards/mpc1211/setup.c
@@ -0,0 +1,360 @@
+/*
+ * linux/arch/sh/board/mpc1211/setup.c
+ *
+ * Copyright (C) 2002 Saito.K & Jeanne, Fujii.Y
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/hdreg.h>
+#include <linux/ide.h>
+#include <linux/interrupt.h>
+
+#include <asm/io.h>
+#include <asm/machvec.h>
+#include <asm/mpc1211/mpc1211.h>
+#include <asm/mpc1211/pci.h>
+#include <asm/mpc1211/m1543c.h>
+
+
+/* ALI15X3 SMBus address offsets */
+#define SMBHSTSTS (0 + 0x3100)
+#define SMBHSTCNT (1 + 0x3100)
+#define SMBHSTSTART (2 + 0x3100)
+#define SMBHSTCMD (7 + 0x3100)
+#define SMBHSTADD (3 + 0x3100)
+#define SMBHSTDAT0 (4 + 0x3100)
+#define SMBHSTDAT1 (5 + 0x3100)
+#define SMBBLKDAT (6 + 0x3100)
+
+/* Other settings */
+#define MAX_TIMEOUT 500 /* times 1/100 sec */
+
+/* ALI15X3 command constants */
+#define ALI15X3_ABORT 0x04
+#define ALI15X3_T_OUT 0x08
+#define ALI15X3_QUICK 0x00
+#define ALI15X3_BYTE 0x10
+#define ALI15X3_BYTE_DATA 0x20
+#define ALI15X3_WORD_DATA 0x30
+#define ALI15X3_BLOCK_DATA 0x40
+#define ALI15X3_BLOCK_CLR 0x80
+
+/* ALI15X3 status register bits */
+#define ALI15X3_STS_IDLE 0x04
+#define ALI15X3_STS_BUSY 0x08
+#define ALI15X3_STS_DONE 0x10
+#define ALI15X3_STS_DEV 0x20 /* device error */
+#define ALI15X3_STS_COLL 0x40 /* collision or no response */
+#define ALI15X3_STS_TERM 0x80 /* terminated by abort */
+#define ALI15X3_STS_ERR 0xE0 /* all the bad error bits */
+
+const char *get_system_type(void)
+{
+ return "Interface MPC-1211(CTP/PCI/MPC-SH02)";
+}
+
+static void __init pci_write_config(unsigned long busNo,
+ unsigned long devNo,
+ unsigned long fncNo,
+ unsigned long cnfAdd,
+ unsigned long cnfData)
+{
+ ctrl_outl((0x80000000
+ + ((busNo & 0xff) << 16)
+ + ((devNo & 0x1f) << 11)
+ + ((fncNo & 0x07) << 8)
+ + (cnfAdd & 0xfc)), PCIPAR);
+
+ ctrl_outl(cnfData, PCIPDR);
+}
+
+/*
+ Initialize IRQ setting
+*/
+
+static unsigned char m_irq_mask = 0xfb;
+static unsigned char s_irq_mask = 0xff;
+volatile unsigned long irq_err_count;
+
+static void disable_mpc1211_irq(unsigned int irq)
+{
+ unsigned long flags;
+
+ save_and_cli(flags);
+ if( irq < 8) {
+ m_irq_mask |= (1 << irq);
+ outb(m_irq_mask,I8259_M_MR);
+ } else {
+ s_irq_mask |= (1 << (irq - 8));
+ outb(s_irq_mask,I8259_S_MR);
+ }
+ restore_flags(flags);
+
+}
+
+static void enable_mpc1211_irq(unsigned int irq)
+{
+ unsigned long flags;
+
+ save_and_cli(flags);
+
+ if( irq < 8) {
+ m_irq_mask &= ~(1 << irq);
+ outb(m_irq_mask,I8259_M_MR);
+ } else {
+ s_irq_mask &= ~(1 << (irq - 8));
+ outb(s_irq_mask,I8259_S_MR);
+ }
+ restore_flags(flags);
+}
+
+static inline int mpc1211_irq_real(unsigned int irq)
+{
+ int value;
+ int irqmask;
+
+ if ( irq < 8) {
+ irqmask = 1<<irq;
+ outb(0x0b,I8259_M_CR); /* ISR register */
+ value = inb(I8259_M_CR) & irqmask;
+ outb(0x0a,I8259_M_CR); /* back ro the IPR reg */
+ return value;
+ }
+ irqmask = 1<<(irq - 8);
+ outb(0x0b,I8259_S_CR); /* ISR register */
+ value = inb(I8259_S_CR) & irqmask;
+ outb(0x0a,I8259_S_CR); /* back ro the IPR reg */
+ return value;
+}
+
+static void mask_and_ack_mpc1211(unsigned int irq)
+{
+ unsigned long flags;
+
+ save_and_cli(flags);
+
+ if(irq < 8) {
+ if(m_irq_mask & (1<<irq)){
+ if(!mpc1211_irq_real(irq)){
+ irq_err_count++;
+ printk("spurious 8259A interrupt: IRQ %x\n",irq);
+ }
+ } else {
+ m_irq_mask |= (1<<irq);
+ }
+ inb(I8259_M_MR); /* DUMMY */
+ outb(m_irq_mask,I8259_M_MR); /* disable */
+ outb(0x60+irq,I8259_M_CR); /* EOI */
+
+ } else {
+ if(s_irq_mask & (1<<(irq - 8))){
+ if(!mpc1211_irq_real(irq)){
+ irq_err_count++;
+ printk("spurious 8259A interrupt: IRQ %x\n",irq);
+ }
+ } else {
+ s_irq_mask |= (1<<(irq - 8));
+ }
+ inb(I8259_S_MR); /* DUMMY */
+ outb(s_irq_mask,I8259_S_MR); /* disable */
+ outb(0x60+(irq-8),I8259_S_CR); /* EOI */
+ outb(0x60+2,I8259_M_CR);
+ }
+ restore_flags(flags);
+}
+
+static void end_mpc1211_irq(unsigned int irq)
+{
+ enable_mpc1211_irq(irq);
+}
+
+static unsigned int startup_mpc1211_irq(unsigned int irq)
+{
+ enable_mpc1211_irq(irq);
+ return 0;
+}
+
+static void shutdown_mpc1211_irq(unsigned int irq)
+{
+ disable_mpc1211_irq(irq);
+}
+
+static struct hw_interrupt_type mpc1211_irq_type = {
+ .typename = "MPC1211-IRQ",
+ .startup = startup_mpc1211_irq,
+ .shutdown = shutdown_mpc1211_irq,
+ .enable = enable_mpc1211_irq,
+ .disable = disable_mpc1211_irq,
+ .ack = mask_and_ack_mpc1211,
+ .end = end_mpc1211_irq
+};
+
+static void make_mpc1211_irq(unsigned int irq)
+{
+ irq_desc[irq].handler = &mpc1211_irq_type;
+ irq_desc[irq].status = IRQ_DISABLED;
+ irq_desc[irq].action = 0;
+ irq_desc[irq].depth = 1;
+ disable_mpc1211_irq(irq);
+}
+
+int mpc1211_irq_demux(int irq)
+{
+ unsigned int poll;
+
+ if( irq == 2 ) {
+ outb(0x0c,I8259_M_CR);
+ poll = inb(I8259_M_CR);
+ if(poll & 0x80) {
+ irq = (poll & 0x07);
+ }
+ if( irq == 2) {
+ outb(0x0c,I8259_S_CR);
+ poll = inb(I8259_S_CR);
+ irq = (poll & 0x07) + 8;
+ }
+ }
+ return irq;
+}
+
+void __init init_mpc1211_IRQ(void)
+{
+ int i;
+ /*
+ * Super I/O (Just mimic PC):
+ * 1: keyboard
+ * 3: serial 1
+ * 4: serial 0
+ * 5: printer
+ * 6: floppy
+ * 8: rtc
+ * 10: lan
+ * 12: mouse
+ * 14: ide0
+ * 15: ide1
+ */
+
+ pci_write_config(0,0,0,0x54, 0xb0b0002d);
+ outb(0x11, I8259_M_CR); /* mater icw1 edge trigger */
+ outb(0x11, I8259_S_CR); /* slave icw1 edge trigger */
+ outb(0x20, I8259_M_MR); /* m icw2 base vec 0x08 */
+ outb(0x28, I8259_S_MR); /* s icw2 base vec 0x70 */
+ outb(0x04, I8259_M_MR); /* m icw3 slave irq2 */
+ outb(0x02, I8259_S_MR); /* s icw3 slave id */
+ outb(0x01, I8259_M_MR); /* m icw4 non buf normal eoi*/
+ outb(0x01, I8259_S_MR); /* s icw4 non buf normal eo1*/
+ outb(0xfb, I8259_M_MR); /* disable irq0--irq7 */
+ outb(0xff, I8259_S_MR); /* disable irq8--irq15 */
+
+ for ( i=0; i < 16; i++) {
+ if(i != 2) {
+ make_mpc1211_irq(i);
+ }
+ }
+}
+
+/*
+ Initialize the board
+*/
+
+
+static void delay (void)
+{
+ volatile unsigned short tmp;
+ tmp = *(volatile unsigned short *) 0xa0000000;
+}
+
+static void delay1000 (void)
+{
+ int i;
+
+ for (i=0; i<1000; i++)
+ delay ();
+}
+
+static int put_smb_blk(unsigned char *p, int address, int command, int no)
+{
+ int temp;
+ int timeout;
+ int i;
+
+ outb(0xff, SMBHSTSTS);
+ temp = inb(SMBHSTSTS);
+ for (timeout = 0; (timeout < MAX_TIMEOUT) && !(temp & ALI15X3_STS_IDLE); timeout++) {
+ delay1000();
+ temp = inb(SMBHSTSTS);
+ }
+ if (timeout >= MAX_TIMEOUT){
+ return -1;
+ }
+
+ outb(((address & 0x7f) << 1), SMBHSTADD);
+ outb(0xc0, SMBHSTCNT);
+ outb(command & 0xff, SMBHSTCMD);
+ outb(no & 0x1f, SMBHSTDAT0);
+
+ for(i = 1; i <= no; i++) {
+ outb(*p++, SMBBLKDAT);
+ }
+ outb(0xff, SMBHSTSTART);
+
+ temp = inb(SMBHSTSTS);
+ for (timeout = 0; (timeout < MAX_TIMEOUT) && !(temp & (ALI15X3_STS_ERR | ALI15X3_STS_DONE)); timeout++) {
+ delay1000();
+ temp = inb(SMBHSTSTS);
+ }
+ if (timeout >= MAX_TIMEOUT) {
+ return -2;
+ }
+ if ( temp & ALI15X3_STS_ERR ){
+ return -3;
+ }
+ return 0;
+}
+
+/*
+ * The Machine Vector
+ */
+
+struct sh_machine_vector mv_mpc1211 __initmv = {
+ .mv_nr_irqs = 48,
+ .mv_irq_demux = mpc1211_irq_demux,
+ .mv_init_irq = init_mpc1211_IRQ,
+
+#ifdef CONFIG_HEARTBEAT
+ .mv_heartbeat = heartbeat_mpc1211,
+#endif
+};
+
+ALIAS_MV(mpc1211)
+
+/* arch/sh/boards/mpc1211/rtc.c */
+void mpc1211_time_init(void);
+
+int __init platform_setup(void)
+{
+ unsigned char spd_buf[128];
+
+ __set_io_port_base(PA_PCI_IO);
+
+ pci_write_config(0,0,0,0x54, 0xb0b00000);
+
+ do {
+ outb(ALI15X3_ABORT, SMBHSTCNT);
+ spd_buf[0] = 0x0c;
+ spd_buf[1] = 0x43;
+ spd_buf[2] = 0x7f;
+ spd_buf[3] = 0x03;
+ spd_buf[4] = 0x00;
+ spd_buf[5] = 0x03;
+ spd_buf[6] = 0x00;
+ } while (put_smb_blk(spd_buf, 0x69, 0, 7) < 0);
+
+ board_time_init = mpc1211_time_init;
+
+ return 0;
+}
+
generated by cgit (git 2.34.1) at 2024-12-26 16:01:53 +0000