diff options
Diffstat (limited to 'arch/m68k/q40/config.c')
| -rw-r--r-- | arch/m68k/q40/config.c | 323 |
1 files changed, 153 insertions, 170 deletions
diff --git a/arch/m68k/q40/config.c b/arch/m68k/q40/config.c index 5e0f9b04d45..e90fe903613 100644 --- a/arch/m68k/q40/config.c +++ b/arch/m68k/q40/config.c @@ -12,7 +12,6 @@ * for more details. */ -#include <linux/config.h> #include <linux/types.h> #include <linux/kernel.h> #include <linux/mm.h> @@ -24,11 +23,12 @@ #include <linux/serial_reg.h> #include <linux/rtc.h> #include <linux/vt_kern.h> +#include <linux/bcd.h> +#include <linux/platform_device.h> #include <asm/io.h> #include <asm/rtc.h> #include <asm/bootinfo.h> -#include <asm/system.h> #include <asm/pgtable.h> #include <asm/setup.h> #include <asm/irq.h> @@ -36,41 +36,29 @@ #include <asm/machdep.h> #include <asm/q40_master.h> -extern irqreturn_t q40_process_int (int level, struct pt_regs *regs); -extern irqreturn_t (*q40_default_handler[]) (int, void *, struct pt_regs *); /* added just for debugging */ -extern void q40_init_IRQ (void); -extern void q40_free_irq (unsigned int, void *); -extern int show_q40_interrupts (struct seq_file *, void *); -extern void q40_enable_irq (unsigned int); -extern void q40_disable_irq (unsigned int); +extern void q40_init_IRQ(void); static void q40_get_model(char *model); -static int q40_get_hardware_list(char *buffer); -extern int q40_request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), unsigned long flags, const char *devname, void *dev_id); -extern void q40_sched_init(irqreturn_t (*handler)(int, void *, struct pt_regs *)); - -extern unsigned long q40_gettimeoffset (void); -extern int q40_hwclk (int, struct rtc_time *); -extern unsigned int q40_get_ss (void); -extern int q40_set_clock_mmss (unsigned long); +extern void q40_sched_init(irq_handler_t handler); + +static u32 q40_gettimeoffset(void); +static int q40_hwclk(int, struct rtc_time *); +static unsigned int q40_get_ss(void); +static int q40_set_clock_mmss(unsigned long); static int q40_get_rtc_pll(struct rtc_pll_info *pll); static int q40_set_rtc_pll(struct rtc_pll_info *pll); -extern void q40_reset (void); -void q40_halt(void); -extern void q40_waitbut(void); -void q40_set_vectors (void); -extern void q40_mksound(unsigned int /*freq*/, unsigned int /*ticks*/ ); +extern void q40_mksound(unsigned int /*freq*/, unsigned int /*ticks*/); -extern char m68k_debug_device[]; static void q40_mem_console_write(struct console *co, const char *b, - unsigned int count); + unsigned int count); extern int ql_ticks; static struct console q40_console_driver = { - .name = "debug", - .flags = CON_PRINTBUFFER, - .index = -1, + .name = "debug", + .write = q40_mem_console_write, + .flags = CON_PRINTBUFFER, + .index = -1, }; @@ -81,157 +69,144 @@ static int _cpleft; static void q40_mem_console_write(struct console *co, const char *s, unsigned int count) { - char *p=(char *)s; - - if (count<_cpleft) - while (count-- >0){ - *q40_mem_cptr=*p++; - q40_mem_cptr+=4; - _cpleft--; - } + const char *p = s; + + if (count < _cpleft) { + while (count-- > 0) { + *q40_mem_cptr = *p++; + q40_mem_cptr += 4; + _cpleft--; + } + } } + +static int __init q40_debug_setup(char *arg) +{ + /* useful for early debugging stages - writes kernel messages into SRAM */ + if (MACH_IS_Q40 && !strncmp(arg, "mem", 3)) { + /*printk("using NVRAM debug, q40_mem_cptr=%p\n",q40_mem_cptr);*/ + _cpleft = 2000 - ((long)q40_mem_cptr-0xff020000) / 4; + register_console(&q40_console_driver); + } + return 0; +} + +early_param("debug", q40_debug_setup); + #if 0 void printq40(char *str) { - int l=strlen(str); - char *p=q40_mem_cptr; - - while (l-- >0 && _cpleft-- >0) - { - *p=*str++; - p+=4; - } - q40_mem_cptr=p; + int l = strlen(str); + char *p = q40_mem_cptr; + + while (l-- > 0 && _cpleft-- > 0) { + *p = *str++; + p += 4; + } + q40_mem_cptr = p; } #endif -static int halted=0; +static int halted; #ifdef CONFIG_HEARTBEAT static void q40_heartbeat(int on) { - if (halted) return; + if (halted) + return; - if (on) - Q40_LED_ON(); - else - Q40_LED_OFF(); + if (on) + Q40_LED_ON(); + else + Q40_LED_OFF(); } #endif -void q40_reset(void) +static void q40_reset(void) { - halted=1; - printk ("\n\n*******************************************\n" - "Called q40_reset : press the RESET button!! \n" + halted = 1; + printk("\n\n*******************************************\n" + "Called q40_reset : press the RESET button!!\n" "*******************************************\n"); Q40_LED_ON(); - while(1) ; + while (1) + ; } -void q40_halt(void) + +static void q40_halt(void) { - halted=1; - printk ("\n\n*******************\n" - " Called q40_halt\n" - "*******************\n"); + halted = 1; + printk("\n\n*******************\n" + " Called q40_halt\n" + "*******************\n"); Q40_LED_ON(); - while(1) ; + while (1) + ; } static void q40_get_model(char *model) { - sprintf(model, "Q40"); + sprintf(model, "Q40"); } -/* No hardware options on Q40? */ - -static int q40_get_hardware_list(char *buffer) +static unsigned int serports[] = { - *buffer = '\0'; - return 0; -} + 0x3f8,0x2f8,0x3e8,0x2e8,0 +}; -static unsigned int serports[]={0x3f8,0x2f8,0x3e8,0x2e8,0}; -void q40_disable_irqs(void) +static void __init q40_disable_irqs(void) { - unsigned i,j; + unsigned i, j; - j=0; - while((i=serports[j++])) outb(0,i+UART_IER); - master_outb(0,EXT_ENABLE_REG); - master_outb(0,KEY_IRQ_ENABLE_REG); + j = 0; + while ((i = serports[j++])) + outb(0, i + UART_IER); + master_outb(0, EXT_ENABLE_REG); + master_outb(0, KEY_IRQ_ENABLE_REG); } void __init config_q40(void) { - mach_sched_init = q40_sched_init; - - mach_init_IRQ = q40_init_IRQ; - mach_gettimeoffset = q40_gettimeoffset; - mach_hwclk = q40_hwclk; - mach_get_ss = q40_get_ss; - mach_get_rtc_pll = q40_get_rtc_pll; - mach_set_rtc_pll = q40_set_rtc_pll; - mach_set_clock_mmss = q40_set_clock_mmss; - - mach_reset = q40_reset; - mach_free_irq = q40_free_irq; - mach_process_int = q40_process_int; - mach_get_irq_list = show_q40_interrupts; - mach_request_irq = q40_request_irq; - enable_irq = q40_enable_irq; - disable_irq = q40_disable_irq; - mach_default_handler = &q40_default_handler; - mach_get_model = q40_get_model; - mach_get_hardware_list = q40_get_hardware_list; + mach_sched_init = q40_sched_init; + + mach_init_IRQ = q40_init_IRQ; + arch_gettimeoffset = q40_gettimeoffset; + mach_hwclk = q40_hwclk; + mach_get_ss = q40_get_ss; + mach_get_rtc_pll = q40_get_rtc_pll; + mach_set_rtc_pll = q40_set_rtc_pll; + mach_set_clock_mmss = q40_set_clock_mmss; + + mach_reset = q40_reset; + mach_get_model = q40_get_model; #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE) - mach_beep = q40_mksound; + mach_beep = q40_mksound; #endif #ifdef CONFIG_HEARTBEAT - mach_heartbeat = q40_heartbeat; + mach_heartbeat = q40_heartbeat; #endif - mach_halt = q40_halt; - - /* disable a few things that SMSQ might have left enabled */ - q40_disable_irqs(); - - /* no DMA at all, but ide-scsi requires it.. make sure - * all physical RAM fits into the boundary - otherwise - * allocator may play costly and useless tricks */ - mach_max_dma_address = 1024*1024*1024; - - /* useful for early debugging stages - writes kernel messages into SRAM */ - if (!strncmp( m68k_debug_device,"mem",3 )) - { - /*printk("using NVRAM debug, q40_mem_cptr=%p\n",q40_mem_cptr);*/ - _cpleft=2000-((long)q40_mem_cptr-0xff020000)/4; - q40_console_driver.write = q40_mem_console_write; - register_console(&q40_console_driver); - } -} + mach_halt = q40_halt; + /* disable a few things that SMSQ might have left enabled */ + q40_disable_irqs(); -int q40_parse_bootinfo(const struct bi_record *rec) -{ - return 1; + /* no DMA at all, but ide-scsi requires it.. make sure + * all physical RAM fits into the boundary - otherwise + * allocator may play costly and useless tricks */ + mach_max_dma_address = 1024*1024*1024; } -static inline unsigned char bcd2bin (unsigned char b) -{ - return ((b>>4)*10 + (b&15)); -} - -static inline unsigned char bin2bcd (unsigned char b) +int __init q40_parse_bootinfo(const struct bi_record *rec) { - return (((b/10)*16) + (b%10)); + return 1; } -unsigned long q40_gettimeoffset (void) +static u32 q40_gettimeoffset(void) { - return 5000*(ql_ticks!=0); + return 5000 * (ql_ticks != 0) * 1000; } @@ -250,11 +225,11 @@ unsigned long q40_gettimeoffset (void) * }; */ -int q40_hwclk(int op, struct rtc_time *t) +static int q40_hwclk(int op, struct rtc_time *t) { - if (op) - { /* Write.... */ - Q40_RTC_CTRL |= Q40_RTC_WRITE; + if (op) { + /* Write.... */ + Q40_RTC_CTRL |= Q40_RTC_WRITE; Q40_RTC_SECS = bin2bcd(t->tm_sec); Q40_RTC_MINS = bin2bcd(t->tm_min); @@ -265,31 +240,29 @@ int q40_hwclk(int op, struct rtc_time *t) if (t->tm_wday >= 0) Q40_RTC_DOW = bin2bcd(t->tm_wday+1); - Q40_RTC_CTRL &= ~(Q40_RTC_WRITE); - } - else - { /* Read.... */ - Q40_RTC_CTRL |= Q40_RTC_READ; - - t->tm_year = bcd2bin (Q40_RTC_YEAR); - t->tm_mon = bcd2bin (Q40_RTC_MNTH)-1; - t->tm_mday = bcd2bin (Q40_RTC_DATE); - t->tm_hour = bcd2bin (Q40_RTC_HOUR); - t->tm_min = bcd2bin (Q40_RTC_MINS); - t->tm_sec = bcd2bin (Q40_RTC_SECS); - - Q40_RTC_CTRL &= ~(Q40_RTC_READ); - - if (t->tm_year < 70) - t->tm_year += 100; - t->tm_wday = bcd2bin(Q40_RTC_DOW)-1; - + Q40_RTC_CTRL &= ~(Q40_RTC_WRITE); + } else { + /* Read.... */ + Q40_RTC_CTRL |= Q40_RTC_READ; + + t->tm_year = bcd2bin (Q40_RTC_YEAR); + t->tm_mon = bcd2bin (Q40_RTC_MNTH)-1; + t->tm_mday = bcd2bin (Q40_RTC_DATE); + t->tm_hour = bcd2bin (Q40_RTC_HOUR); + t->tm_min = bcd2bin (Q40_RTC_MINS); + t->tm_sec = bcd2bin (Q40_RTC_SECS); + + Q40_RTC_CTRL &= ~(Q40_RTC_READ); + + if (t->tm_year < 70) + t->tm_year += 100; + t->tm_wday = bcd2bin(Q40_RTC_DOW)-1; } return 0; } -unsigned int q40_get_ss(void) +static unsigned int q40_get_ss(void) { return bcd2bin(Q40_RTC_SECS); } @@ -299,29 +272,25 @@ unsigned int q40_get_ss(void) * clock is out by > 30 minutes. Logic lifted from atari code. */ -int q40_set_clock_mmss (unsigned long nowtime) +static int q40_set_clock_mmss(unsigned long nowtime) { int retval = 0; short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60; int rtc_minutes; + rtc_minutes = bcd2bin(Q40_RTC_MINS); - rtc_minutes = bcd2bin (Q40_RTC_MINS); - - if ((rtc_minutes < real_minutes - ? real_minutes - rtc_minutes - : rtc_minutes - real_minutes) < 30) - { - Q40_RTC_CTRL |= Q40_RTC_WRITE; + if ((rtc_minutes < real_minutes ? + real_minutes - rtc_minutes : + rtc_minutes - real_minutes) < 30) { + Q40_RTC_CTRL |= Q40_RTC_WRITE; Q40_RTC_MINS = bin2bcd(real_minutes); Q40_RTC_SECS = bin2bcd(real_seconds); Q40_RTC_CTRL &= ~(Q40_RTC_WRITE); - } - else + } else retval = -1; - return retval; } @@ -332,21 +301,23 @@ int q40_set_clock_mmss (unsigned long nowtime) static int q40_get_rtc_pll(struct rtc_pll_info *pll) { - int tmp=Q40_RTC_CTRL; + int tmp = Q40_RTC_CTRL; + pll->pll_value = tmp & Q40_RTC_PLL_MASK; if (tmp & Q40_RTC_PLL_SIGN) pll->pll_value = -pll->pll_value; - pll->pll_max=31; - pll->pll_min=-31; - pll->pll_posmult=512; - pll->pll_negmult=256; - pll->pll_clock=125829120; + pll->pll_max = 31; + pll->pll_min = -31; + pll->pll_posmult = 512; + pll->pll_negmult = 256; + pll->pll_clock = 125829120; + return 0; } static int q40_set_rtc_pll(struct rtc_pll_info *pll) { - if (!pll->pll_ctrl){ + if (!pll->pll_ctrl) { /* the docs are a bit unclear so I am doublesetting */ /* RTC_WRITE here ... */ int tmp = (pll->pll_value & 31) | (pll->pll_value<0 ? 32 : 0) | @@ -358,3 +329,15 @@ static int q40_set_rtc_pll(struct rtc_pll_info *pll) } else return -EINVAL; } + +static __init int q40_add_kbd_device(void) +{ + struct platform_device *pdev; + + if (!MACH_IS_Q40) + return -ENODEV; + + pdev = platform_device_register_simple("q40kbd", -1, NULL, 0); + return PTR_ERR_OR_ZERO(pdev); +} +arch_initcall(q40_add_kbd_device); |
