diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/sh/boards/snapgear |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/sh/boards/snapgear')
-rw-r--r-- | arch/sh/boards/snapgear/Makefile | 6 | ||||
-rw-r--r-- | arch/sh/boards/snapgear/io.c | 226 | ||||
-rw-r--r-- | arch/sh/boards/snapgear/rtc.c | 333 | ||||
-rw-r--r-- | arch/sh/boards/snapgear/setup.c | 216 |
4 files changed, 781 insertions, 0 deletions
diff --git a/arch/sh/boards/snapgear/Makefile b/arch/sh/boards/snapgear/Makefile new file mode 100644 index 00000000000..59fc976bfc2 --- /dev/null +++ b/arch/sh/boards/snapgear/Makefile @@ -0,0 +1,6 @@ +# +# Makefile for the SnapGear specific parts of the kernel +# + +obj-y := setup.o io.o rtc.o + diff --git a/arch/sh/boards/snapgear/io.c b/arch/sh/boards/snapgear/io.c new file mode 100644 index 00000000000..e2eb78fc381 --- /dev/null +++ b/arch/sh/boards/snapgear/io.c @@ -0,0 +1,226 @@ +/* + * linux/arch/sh/kernel/io_7751se.c + * + * Copyright (C) 2002 David McCullough <davidm@snapgear.com> + * Copyright (C) 2001 Ian da Silva, Jeremy Siegel + * Based largely on io_se.c. + * + * I/O routine for Hitachi 7751 SolutionEngine. + * + * Initial version only to support LAN access; some + * placeholder code from io_se.c left in with the + * expectation of later SuperIO and PCMCIA access. + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/pci.h> +#include <asm/io.h> +#include <asm/addrspace.h> + +#include <asm/pci.h> +#include "../../drivers/pci/pci-sh7751.h" + +#ifdef CONFIG_SH_SECUREEDGE5410 +unsigned short secureedge5410_ioport; +#endif + +/* + * The SnapGear uses the built-in PCI controller (PCIC) + * of the 7751 processor + */ + +#define PCIIOBR (volatile long *)PCI_REG(SH7751_PCIIOBR) +#define PCIMBR (volatile long *)PCI_REG(SH7751_PCIMBR) +#define PCI_IO_AREA SH7751_PCI_IO_BASE +#define PCI_MEM_AREA SH7751_PCI_CONFIG_BASE + + +#define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK)) + + +#define maybebadio(name,port) \ + printk("bad PC-like io %s for port 0x%lx at 0x%08x\n", \ + #name, (port), (__u32) __builtin_return_address(0)) + + +static inline void delay(void) +{ + ctrl_inw(0xa0000000); +} + + +static inline volatile __u16 *port2adr(unsigned int port) +{ +#if 0 + if (port >= 0x2000) + return (volatile __u16 *) (PA_MRSHPC + (port - 0x2000)); +#endif + maybebadio(name,(unsigned long)port); + return (volatile __u16*)port; +} + + +/* In case someone configures the kernel w/o PCI support: in that */ +/* scenario, don't ever bother to check for PCI-window addresses */ + +/* NOTE: WINDOW CHECK MAY BE A BIT OFF, HIGH PCIBIOS_MIN_IO WRAPS? */ +#if defined(CONFIG_PCI) +#define CHECK_SH7751_PCIIO(port) \ + ((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7751_PCI_IO_SIZE))) +#else +#define CHECK_SH7751_PCIIO(port) (0) +#endif + +/* + * General outline: remap really low stuff [eventually] to SuperIO, + * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO) + * is mapped through the PCI IO window. Stuff with high bits (PXSEG) + * should be way beyond the window, and is used w/o translation for + * compatibility. + */ + +unsigned char snapgear_inb(unsigned long port) +{ + if (PXSEG(port)) + return *(volatile unsigned char *)port; + else if (CHECK_SH7751_PCIIO(port)) + return *(volatile unsigned char *)PCI_IOMAP(port); + else + return (*port2adr(port))&0xff; +} + + +unsigned char snapgear_inb_p(unsigned long port) +{ + unsigned char v; + + if (PXSEG(port)) + v = *(volatile unsigned char *)port; + else if (CHECK_SH7751_PCIIO(port)) + v = *(volatile unsigned char *)PCI_IOMAP(port); + else + v = (*port2adr(port))&0xff; + delay(); + return v; +} + + +unsigned short snapgear_inw(unsigned long port) +{ + if (PXSEG(port)) + return *(volatile unsigned short *)port; + else if (CHECK_SH7751_PCIIO(port)) + return *(volatile unsigned short *)PCI_IOMAP(port); + else if (port >= 0x2000) + return *port2adr(port); + else + maybebadio(inw, port); + return 0; +} + + +unsigned int snapgear_inl(unsigned long port) +{ + if (PXSEG(port)) + return *(volatile unsigned long *)port; + else if (CHECK_SH7751_PCIIO(port)) + return *(volatile unsigned int *)PCI_IOMAP(port); + else if (port >= 0x2000) + return *port2adr(port); + else + maybebadio(inl, port); + return 0; +} + + +void snapgear_outb(unsigned char value, unsigned long port) +{ + + if (PXSEG(port)) + *(volatile unsigned char *)port = value; + else if (CHECK_SH7751_PCIIO(port)) + *((unsigned char*)PCI_IOMAP(port)) = value; + else + *(port2adr(port)) = value; +} + + +void snapgear_outb_p(unsigned char value, unsigned long port) +{ + if (PXSEG(port)) + *(volatile unsigned char *)port = value; + else if (CHECK_SH7751_PCIIO(port)) + *((unsigned char*)PCI_IOMAP(port)) = value; + else + *(port2adr(port)) = value; + delay(); +} + + +void snapgear_outw(unsigned short value, unsigned long port) +{ + if (PXSEG(port)) + *(volatile unsigned short *)port = value; + else if (CHECK_SH7751_PCIIO(port)) + *((unsigned short *)PCI_IOMAP(port)) = value; + else if (port >= 0x2000) + *port2adr(port) = value; + else + maybebadio(outw, port); +} + + +void snapgear_outl(unsigned int value, unsigned long port) +{ + if (PXSEG(port)) + *(volatile unsigned long *)port = value; + else if (CHECK_SH7751_PCIIO(port)) + *((unsigned long*)PCI_IOMAP(port)) = value; + else + maybebadio(outl, port); +} + +void snapgear_insl(unsigned long port, void *addr, unsigned long count) +{ + maybebadio(insl, port); +} + +void snapgear_outsl(unsigned long port, const void *addr, unsigned long count) +{ + maybebadio(outsw, port); +} + +/* Map ISA bus address to the real address. Only for PCMCIA. */ + + +/* ISA page descriptor. */ +static __u32 sh_isa_memmap[256]; + + +#if 0 +static int sh_isa_mmap(__u32 start, __u32 length, __u32 offset) +{ + int idx; + + if (start >= 0x100000 || (start & 0xfff) || (length != 0x1000)) + return -1; + + idx = start >> 12; + sh_isa_memmap[idx] = 0xb8000000 + (offset &~ 0xfff); +#if 0 + printk("sh_isa_mmap: start %x len %x offset %x (idx %x paddr %x)\n", + start, length, offset, idx, sh_isa_memmap[idx]); +#endif + return 0; +} +#endif + +unsigned long snapgear_isa_port2addr(unsigned long offset) +{ + int idx; + + idx = (offset >> 12) & 0xff; + offset &= 0xfff; + return sh_isa_memmap[idx] + offset; +} diff --git a/arch/sh/boards/snapgear/rtc.c b/arch/sh/boards/snapgear/rtc.c new file mode 100644 index 00000000000..b71e009da35 --- /dev/null +++ b/arch/sh/boards/snapgear/rtc.c @@ -0,0 +1,333 @@ +/****************************************************************************/ +/* + * linux/arch/sh/boards/snapgear/rtc.c -- Secureedge5410 RTC code + * + * Copyright (C) 2002 David McCullough <davidm@snapgear.com> + * Copyright (C) 2003 Paul Mundt <lethal@linux-sh.org> + * + * The SecureEdge5410 can have one of 2 real time clocks, the SH + * built in version or the preferred external DS1302. Here we work out + * each to see what we have and then run with it. + */ +/****************************************************************************/ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/time.h> +#include <linux/rtc.h> +#include <linux/mc146818rtc.h> + +#include <asm/io.h> +#include <asm/rtc.h> +#include <asm/mc146818rtc.h> + +/****************************************************************************/ + +static int use_ds1302 = 0; + +/****************************************************************************/ +/* + * we need to implement a DS1302 driver here that can operate in + * conjunction with the builtin rtc driver which is already quite friendly + */ +/*****************************************************************************/ + +#define RTC_CMD_READ 0x81 /* Read command */ +#define RTC_CMD_WRITE 0x80 /* Write command */ + +#define RTC_ADDR_YEAR 0x06 /* Address of year register */ +#define RTC_ADDR_DAY 0x05 /* Address of day of week register */ +#define RTC_ADDR_MON 0x04 /* Address of month register */ +#define RTC_ADDR_DATE 0x03 /* Address of day of month register */ +#define RTC_ADDR_HOUR 0x02 /* Address of hour register */ +#define RTC_ADDR_MIN 0x01 /* Address of minute register */ +#define RTC_ADDR_SEC 0x00 /* Address of second register */ + +#define RTC_RESET 0x1000 +#define RTC_IODATA 0x0800 +#define RTC_SCLK 0x0400 + +#define set_dirp(x) +#define get_dirp(x) 0 +#define set_dp(x) SECUREEDGE_WRITE_IOPORT(x, 0x1c00) +#define get_dp(x) SECUREEDGE_READ_IOPORT() + +static void ds1302_sendbits(unsigned int val) +{ + int i; + + for (i = 8; (i); i--, val >>= 1) { + set_dp((get_dp() & ~RTC_IODATA) | ((val & 0x1) ? RTC_IODATA : 0)); + set_dp(get_dp() | RTC_SCLK); // clock high + set_dp(get_dp() & ~RTC_SCLK); // clock low + } +} + +static unsigned int ds1302_recvbits(void) +{ + unsigned int val; + int i; + + for (i = 0, val = 0; (i < 8); i++) { + val |= (((get_dp() & RTC_IODATA) ? 1 : 0) << i); + set_dp(get_dp() | RTC_SCLK); // clock high + set_dp(get_dp() & ~RTC_SCLK); // clock low + } + return(val); +} + +static unsigned int ds1302_readbyte(unsigned int addr) +{ + unsigned int val; + unsigned long flags; + +#if 0 + printk("SnapGear RTC: ds1302_readbyte(addr=%x)\n", addr); +#endif + + local_irq_save(flags); + set_dirp(get_dirp() | RTC_RESET | RTC_IODATA | RTC_SCLK); + set_dp(get_dp() & ~(RTC_RESET | RTC_IODATA | RTC_SCLK)); + + set_dp(get_dp() | RTC_RESET); + ds1302_sendbits(((addr & 0x3f) << 1) | RTC_CMD_READ); + set_dirp(get_dirp() & ~RTC_IODATA); + val = ds1302_recvbits(); + set_dp(get_dp() & ~RTC_RESET); + local_irq_restore(flags); + + return(val); +} + +static void ds1302_writebyte(unsigned int addr, unsigned int val) +{ + unsigned long flags; + +#if 0 + printk("SnapGear RTC: ds1302_writebyte(addr=%x)\n", addr); +#endif + + local_irq_save(flags); + set_dirp(get_dirp() | RTC_RESET | RTC_IODATA | RTC_SCLK); + set_dp(get_dp() & ~(RTC_RESET | RTC_IODATA | RTC_SCLK)); + set_dp(get_dp() | RTC_RESET); + ds1302_sendbits(((addr & 0x3f) << 1) | RTC_CMD_WRITE); + ds1302_sendbits(val); + set_dp(get_dp() & ~RTC_RESET); + local_irq_restore(flags); +} + +static void ds1302_reset(void) +{ + unsigned long flags; + /* Hardware dependant reset/init */ + local_irq_save(flags); + set_dirp(get_dirp() | RTC_RESET | RTC_IODATA | RTC_SCLK); + set_dp(get_dp() & ~(RTC_RESET | RTC_IODATA | RTC_SCLK)); + local_irq_restore(flags); +} + +/*****************************************************************************/ + +static inline int bcd2int(int val) +{ + return((((val & 0xf0) >> 4) * 10) + (val & 0xf)); +} + +static inline int int2bcd(int val) +{ + return(((val / 10) << 4) + (val % 10)); +} + +/*****************************************************************************/ +/* + * Write and Read some RAM in the DS1302, if it works assume it's there + * Otherwise use the SH4 internal RTC + */ + +void snapgear_rtc_gettimeofday(struct timespec *); +int snapgear_rtc_settimeofday(const time_t); + +void __init secureedge5410_rtc_init(void) +{ + unsigned char *test = "snapgear"; + int i; + + ds1302_reset(); + + use_ds1302 = 1; + + for (i = 0; test[i]; i++) + ds1302_writebyte(32 + i, test[i]); + + for (i = 0; test[i]; i++) + if (ds1302_readbyte(32 + i) != test[i]) { + use_ds1302 = 0; + break; + } + + if (use_ds1302) { + rtc_get_time = snapgear_rtc_gettimeofday; + rtc_set_time = snapgear_rtc_settimeofday; + } else { + rtc_get_time = sh_rtc_gettimeofday; + rtc_set_time = sh_rtc_settimeofday; + } + + printk("SnapGear RTC: using %s rtc.\n", use_ds1302 ? "ds1302" : "internal"); +} + +/****************************************************************************/ +/* + * our generic interface that chooses the correct code to use + */ + +void snapgear_rtc_gettimeofday(struct timespec *ts) +{ + unsigned int sec, min, hr, day, mon, yr; + + if (!use_ds1302) { + sh_rtc_gettimeofday(ts); + return; + } + + sec = bcd2int(ds1302_readbyte(RTC_ADDR_SEC)); + min = bcd2int(ds1302_readbyte(RTC_ADDR_MIN)); + hr = bcd2int(ds1302_readbyte(RTC_ADDR_HOUR)); + day = bcd2int(ds1302_readbyte(RTC_ADDR_DATE)); + mon = bcd2int(ds1302_readbyte(RTC_ADDR_MON)); + yr = bcd2int(ds1302_readbyte(RTC_ADDR_YEAR)); + +bad_time: + if (yr > 99 || mon < 1 || mon > 12 || day > 31 || day < 1 || + hr > 23 || min > 59 || sec > 59) { + printk(KERN_ERR + "SnapGear RTC: invalid value, resetting to 1 Jan 2000\n"); + ds1302_writebyte(RTC_ADDR_MIN, min = 0); + ds1302_writebyte(RTC_ADDR_HOUR, hr = 0); + ds1302_writebyte(RTC_ADDR_DAY, 7); + ds1302_writebyte(RTC_ADDR_DATE, day = 1); + ds1302_writebyte(RTC_ADDR_MON, mon = 1); + ds1302_writebyte(RTC_ADDR_YEAR, yr = 0); + ds1302_writebyte(RTC_ADDR_SEC, sec = 0); + } + + ts->tv_sec = mktime(2000 + yr, mon, day, hr, min, sec); + if (ts->tv_sec < 0) { +#if 0 + printk("BAD TIME %d %d %d %d %d %d\n", yr, mon, day, hr, min, sec); +#endif + yr = 100; + goto bad_time; + } + ts->tv_nsec = 0; +} + +int snapgear_rtc_settimeofday(const time_t secs) +{ + int retval = 0; + int real_seconds, real_minutes, cmos_minutes; + unsigned long nowtime; + + if (!use_ds1302) + return sh_rtc_settimeofday(secs); + +/* + * This is called direct from the kernel timer handling code. + * It is supposed to synchronize the kernel clock to the RTC. + */ + + nowtime = secs; + +#if 1 + printk("SnapGear RTC: snapgear_rtc_settimeofday(nowtime=%ld)\n", nowtime); +#endif + + /* STOP RTC */ + ds1302_writebyte(RTC_ADDR_SEC, ds1302_readbyte(RTC_ADDR_SEC) | 0x80); + + cmos_minutes = bcd2int(ds1302_readbyte(RTC_ADDR_MIN)); + + /* + * 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) { + ds1302_writebyte(RTC_ADDR_MIN, int2bcd(real_minutes)); + ds1302_writebyte(RTC_ADDR_SEC, int2bcd(real_seconds)); + } else { + printk(KERN_WARNING + "SnapGear RTC: can't update from %d to %d\n", + cmos_minutes, real_minutes); + retval = -1; + } + + /* START RTC */ + ds1302_writebyte(RTC_ADDR_SEC, ds1302_readbyte(RTC_ADDR_SEC) & ~0x80); + return(0); +} + +unsigned char secureedge5410_cmos_read(int addr) +{ + unsigned char val = 0; + + if (!use_ds1302) + return(__CMOS_READ(addr, w)); + + switch(addr) { + case RTC_SECONDS: val = ds1302_readbyte(RTC_ADDR_SEC); break; + case RTC_SECONDS_ALARM: break; + case RTC_MINUTES: val = ds1302_readbyte(RTC_ADDR_MIN); break; + case RTC_MINUTES_ALARM: break; + case RTC_HOURS: val = ds1302_readbyte(RTC_ADDR_HOUR); break; + case RTC_HOURS_ALARM: break; + case RTC_DAY_OF_WEEK: val = ds1302_readbyte(RTC_ADDR_DAY); break; + case RTC_DAY_OF_MONTH: val = ds1302_readbyte(RTC_ADDR_DATE); break; + case RTC_MONTH: val = ds1302_readbyte(RTC_ADDR_MON); break; + case RTC_YEAR: val = ds1302_readbyte(RTC_ADDR_YEAR); break; + case RTC_REG_A: /* RTC_FREQ_SELECT */ break; + case RTC_REG_B: /* RTC_CONTROL */ break; + case RTC_REG_C: /* RTC_INTR_FLAGS */ break; + case RTC_REG_D: val = RTC_VRT /* RTC_VALID */; break; + default: break; + } + + return(val); +} + +void secureedge5410_cmos_write(unsigned char val, int addr) +{ + if (!use_ds1302) { + __CMOS_WRITE(val, addr, w); + return; + } + + switch(addr) { + case RTC_SECONDS: ds1302_writebyte(RTC_ADDR_SEC, val); break; + case RTC_SECONDS_ALARM: break; + case RTC_MINUTES: ds1302_writebyte(RTC_ADDR_MIN, val); break; + case RTC_MINUTES_ALARM: break; + case RTC_HOURS: ds1302_writebyte(RTC_ADDR_HOUR, val); break; + case RTC_HOURS_ALARM: break; + case RTC_DAY_OF_WEEK: ds1302_writebyte(RTC_ADDR_DAY, val); break; + case RTC_DAY_OF_MONTH: ds1302_writebyte(RTC_ADDR_DATE, val); break; + case RTC_MONTH: ds1302_writebyte(RTC_ADDR_MON, val); break; + case RTC_YEAR: ds1302_writebyte(RTC_ADDR_YEAR, val); break; + case RTC_REG_A: /* RTC_FREQ_SELECT */ break; + case RTC_REG_B: /* RTC_CONTROL */ break; + case RTC_REG_C: /* RTC_INTR_FLAGS */ break; + case RTC_REG_D: /* RTC_VALID */ break; + default: break; + } +} + +/****************************************************************************/ diff --git a/arch/sh/boards/snapgear/setup.c b/arch/sh/boards/snapgear/setup.c new file mode 100644 index 00000000000..08fc98342a0 --- /dev/null +++ b/arch/sh/boards/snapgear/setup.c @@ -0,0 +1,216 @@ +/****************************************************************************/ +/* + * linux/arch/sh/boards/snapgear/setup.c + * + * Copyright (C) 2002 David McCullough <davidm@snapgear.com> + * Copyright (C) 2003 Paul Mundt <lethal@linux-sh.org> + * + * Based on files with the following comments: + * + * Copyright (C) 2000 Kazumoto Kojima + * + * Modified for 7751 Solution Engine by + * Ian da Silva and Jeremy Siegel, 2001. + */ +/****************************************************************************/ + +#include <linux/config.h> +#include <linux/init.h> +#include <linux/irq.h> +#include <linux/interrupt.h> +#include <linux/timer.h> +#include <linux/delay.h> +#include <linux/module.h> +#include <linux/sched.h> + +#include <asm/machvec.h> +#include <asm/mach/io.h> +#include <asm/irq.h> +#include <asm/io.h> +#include <asm/cpu/timer.h> + +extern void (*board_time_init)(void); +extern void secureedge5410_rtc_init(void); +extern void pcibios_init(void); + +/****************************************************************************/ +/* + * EraseConfig handling functions + */ + +static irqreturn_t eraseconfig_interrupt(int irq, void *dev_id, struct pt_regs *regs) +{ + volatile char dummy __attribute__((unused)) = * (volatile char *) 0xb8000000; + + printk("SnapGear: erase switch interrupt!\n"); + + return IRQ_HANDLED; +} + +static int __init eraseconfig_init(void) +{ + printk("SnapGear: EraseConfig init\n"); + /* Setup "EraseConfig" switch on external IRQ 0 */ + if (request_irq(IRL0_IRQ, eraseconfig_interrupt, SA_INTERRUPT, + "Erase Config", NULL)) + printk("SnapGear: failed to register IRQ%d for Reset witch\n", + IRL0_IRQ); + else + printk("SnapGear: registered EraseConfig switch on IRQ%d\n", + IRL0_IRQ); + return(0); +} + +module_init(eraseconfig_init); + +/****************************************************************************/ +/* + * Initialize IRQ setting + * + * IRL0 = erase switch + * IRL1 = eth0 + * IRL2 = eth1 + * IRL3 = crypto + */ + +static void __init init_snapgear_IRQ(void) +{ + /* enable individual interrupt mode for externals */ + ctrl_outw(ctrl_inw(INTC_ICR) | INTC_ICR_IRLM, INTC_ICR); + + printk("Setup SnapGear IRQ/IPR ...\n"); + + make_ipr_irq(IRL0_IRQ, IRL0_IPR_ADDR, IRL0_IPR_POS, IRL0_PRIORITY); + make_ipr_irq(IRL1_IRQ, IRL1_IPR_ADDR, IRL1_IPR_POS, IRL1_PRIORITY); + make_ipr_irq(IRL2_IRQ, IRL2_IPR_ADDR, IRL2_IPR_POS, IRL2_PRIORITY); + make_ipr_irq(IRL3_IRQ, IRL3_IPR_ADDR, IRL3_IPR_POS, IRL3_PRIORITY); +} + +/****************************************************************************/ +/* + * Fast poll interrupt simulator. + */ + +/* + * Leave all of the fast timer/fast poll stuff commented out for now, since + * it's not clear whether it actually works or not. Since it wasn't being used + * at all in 2.4, we'll assume it's not sane for 2.6 either.. -- PFM + */ +#if 0 +#define FAST_POLL 1000 +//#define FAST_POLL_INTR + +#define FASTTIMER_IRQ 17 +#define FASTTIMER_IPR_ADDR INTC_IPRA +#define FASTTIMER_IPR_POS 2 +#define FASTTIMER_PRIORITY 3 + +#ifdef FAST_POLL_INTR +#define TMU1_TCR_INIT 0x0020 +#else +#define TMU1_TCR_INIT 0 +#endif +#define TMU_TSTR_INIT 1 +#define TMU1_TCR_CALIB 0x0000 + + +#ifdef FAST_POLL_INTR +static void fast_timer_irq(int irq, void *dev_instance, struct pt_regs *regs) +{ + unsigned long timer_status; + timer_status = ctrl_inw(TMU1_TCR); + timer_status &= ~0x100; + ctrl_outw(timer_status, TMU1_TCR); +} +#endif + +/* + * return the current ticks on the fast timer + */ + +unsigned long fast_timer_count(void) +{ + return(ctrl_inl(TMU1_TCNT)); +} + +/* + * setup a fast timer for profiling etc etc + */ + +static void setup_fast_timer() +{ + unsigned long interval; + +#ifdef FAST_POLL_INTR + interval = (current_cpu_data.module_clock/4 + FAST_POLL/2) / FAST_POLL; + + make_ipr_irq(FASTTIMER_IRQ, FASTTIMER_IPR_ADDR, FASTTIMER_IPR_POS, + FASTTIMER_PRIORITY); + + printk("SnapGear: %dHz fast timer on IRQ %d\n",FAST_POLL,FASTTIMER_IRQ); + + if (request_irq(FASTTIMER_IRQ, fast_timer_irq, 0, "SnapGear fast timer", + NULL) != 0) + printk("%s(%d): request_irq() failed?\n", __FILE__, __LINE__); +#else + printk("SnapGear: fast timer running\n",FAST_POLL,FASTTIMER_IRQ); + interval = 0xffffffff; +#endif + + ctrl_outb(ctrl_inb(TMU_TSTR) & ~0x2, TMU_TSTR); /* disable timer 1 */ + ctrl_outw(TMU1_TCR_INIT, TMU1_TCR); + ctrl_outl(interval, TMU1_TCOR); + ctrl_outl(interval, TMU1_TCNT); + ctrl_outb(ctrl_inb(TMU_TSTR) | 0x2, TMU_TSTR); /* enable timer 1 */ + + printk("Timer count 1 = 0x%x\n", fast_timer_count()); + udelay(1000); + printk("Timer count 2 = 0x%x\n", fast_timer_count()); +} +#endif + +/****************************************************************************/ + +const char *get_system_type(void) +{ + return "SnapGear SecureEdge5410"; +} + +/* + * The Machine Vector + */ + +struct sh_machine_vector mv_snapgear __initmv = { + .mv_nr_irqs = 72, + + .mv_inb = snapgear_inb, + .mv_inw = snapgear_inw, + .mv_inl = snapgear_inl, + .mv_outb = snapgear_outb, + .mv_outw = snapgear_outw, + .mv_outl = snapgear_outl, + + .mv_inb_p = snapgear_inb_p, + .mv_inw_p = snapgear_inw, + .mv_inl_p = snapgear_inl, + .mv_outb_p = snapgear_outb_p, + .mv_outw_p = snapgear_outw, + .mv_outl_p = snapgear_outl, + + .mv_isa_port2addr = snapgear_isa_port2addr, + + .mv_init_irq = init_snapgear_IRQ, +}; +ALIAS_MV(snapgear) + +/* + * Initialize the board + */ + +int __init platform_setup(void) +{ + board_time_init = secureedge5410_rtc_init; + + return 0; +} + |