diff options
Diffstat (limited to 'arch/ppc/kernel/apus_setup.c')
| -rw-r--r-- | arch/ppc/kernel/apus_setup.c | 159 |
1 files changed, 125 insertions, 34 deletions
diff --git a/arch/ppc/kernel/apus_setup.c b/arch/ppc/kernel/apus_setup.c index 5f0c4b06e..a54efc6fd 100644 --- a/arch/ppc/kernel/apus_setup.c +++ b/arch/ppc/kernel/apus_setup.c @@ -10,7 +10,7 @@ * TODO: * This file needs a *really* good cleanup. Restructure and optimize. * Make sure it can be compiled for non-APUS configs. Begin to move - * Amiga specific stuff into linux/machine/amiga. + * Amiga specific stuff into mach/amiga. */ #include <linux/config.h> @@ -27,6 +27,10 @@ #include <asm/logging.h> #endif +/* Needs INITSERIAL call in head.S! */ +#undef APUS_DEBUG + + #include <linux/ide.h> #define T_CHAR (0x0000) /* char: don't touch */ #define T_SHORT (0x4000) /* short: 12 -> 21 */ @@ -60,37 +64,6 @@ static u_short driveid_types[] = { #define num_driveid_types (sizeof(driveid_types)/sizeof(*driveid_types)) -#if 0 /* Get rid of this crud */ -/* Get the IDE stuff from the 68k file */ -#define ide_init_hwif_ports m68k_ide_init_hwif_ports -#define ide_default_irq m68k_ide_default_irq -#undef ide_request_irq -#define ide_request_irq m68k_ide_request_irq -#undef ide_free_irq -#define ide_free_irq m68k_ide_free_irq -#define ide_default_io_base m68k_ide_default_io_base -#define ide_check_region m68k_ide_check_region -#define ide_request_region m68k_ide_request_region -#define ide_release_region m68k_ide_release_region -#define ide_fix_driveid m68k_ide_fix_driveid -#define ide_init_default_hwifs m68k_ide_init_default_hwifs -#define select_t m68k_select_t -//#include <asm/hdreg.h> -#include <asm-m68k/ide.h> -#undef ide_free_irq -#undef select_t -#undef ide_request_irq -#undef ide_init_default_hwifs -#undef ide_init_hwif_ports -#undef ide_default_irq -#undef ide_default_io_base -#undef ide_check_region -#undef ide_request_region -#undef ide_release_region -#undef ide_fix_driveid -/*-------------------------------------------*/ -#endif - #include <asm/bootinfo.h> #include <asm/setup.h> #include <asm/amigahw.h> @@ -764,6 +737,12 @@ void apus_ide_init_hwif_ports (hw_regs_t *hw, ide_ioreg_t data_port, /****************************************************** IRQ stuff */ __apus +static unsigned int apus_irq_cannonicalize(unsigned int irq) +{ + return irq; +} + +__apus int apus_get_irq_list(char *buf) { #ifdef CONFIG_APUS @@ -922,6 +901,114 @@ static void apus_kbd_init_hw(void) } +/****************************************************** debugging */ + +/* some serial hardware definitions */ +#define SDR_OVRUN (1<<15) +#define SDR_RBF (1<<14) +#define SDR_TBE (1<<13) +#define SDR_TSRE (1<<12) + +#define AC_SETCLR (1<<15) +#define AC_UARTBRK (1<<11) + +#define SER_DTR (1<<7) +#define SER_RTS (1<<6) +#define SER_DCD (1<<5) +#define SER_CTS (1<<4) +#define SER_DSR (1<<3) + +static __inline__ void ser_RTSon(void) +{ + ciab.pra &= ~SER_RTS; /* active low */ +} + +__apus +int __debug_ser_out( unsigned char c ) +{ + custom.serdat = c | 0x100; + mb(); + while (!(custom.serdatr & 0x2000)) + barrier(); + return 1; +} + +__apus +unsigned char __debug_ser_in( void ) +{ + unsigned char c; + + /* XXX: is that ok?? derived from amiga_ser.c... */ + while( !(custom.intreqr & IF_RBF) ) + barrier(); + c = custom.serdatr; + /* clear the interrupt, so that another character can be read */ + custom.intreq = IF_RBF; + return c; +} + +__apus +int __debug_serinit( void ) +{ + unsigned long flags; + + save_flags (flags); + cli(); + + /* turn off Rx and Tx interrupts */ + custom.intena = IF_RBF | IF_TBE; + + /* clear any pending interrupt */ + custom.intreq = IF_RBF | IF_TBE; + + restore_flags (flags); + + /* + * set the appropriate directions for the modem control flags, + * and clear RTS and DTR + */ + ciab.ddra |= (SER_DTR | SER_RTS); /* outputs */ + ciab.ddra &= ~(SER_DCD | SER_CTS | SER_DSR); /* inputs */ + +#ifdef CONFIG_KGDB + /* turn Rx interrupts on for GDB */ + custom.intena = IF_SETCLR | IF_RBF; + ser_RTSon(); +#endif + + return 0; +} + +__apus +void __debug_print_hex(unsigned long x) +{ + int i; + char hexchars[] = "0123456789ABCDEF"; + + for (i = 0; i < 8; i++) { + __debug_ser_out(hexchars[(x >> 28) & 15]); + x <<= 4; + } + __debug_ser_out('\n'); + __debug_ser_out('\r'); +} + +__apus +void __debug_print_string(char* s) +{ + unsigned char c; + while((c = *s++)) + __debug_ser_out(c); + __debug_ser_out('\n'); + __debug_ser_out('\r'); +} + +__apus +static void apus_progress(char *s, unsigned short value) +{ + __debug_print_string(s); +} + /****************************************************** init */ /* The number of spurious interrupts */ @@ -970,7 +1057,7 @@ void apus_init_IRQ(void) int i; for ( i = 0 ; i < NR_IRQS ; i++ ) - irq_desc[i].ctl = &amiga_irqctrl; + irq_desc[i].handler = &amiga_irqctrl; for (i = 0; i < NUM_IRQ_NODES; i++) nodes[i].handler = NULL; @@ -1015,7 +1102,7 @@ void apus_init(unsigned long r3, unsigned long r4, unsigned long r5, ppc_md.setup_arch = apus_setup_arch; ppc_md.setup_residual = NULL; ppc_md.get_cpuinfo = apus_get_cpuinfo; - ppc_md.irq_cannonicalize = NULL; + ppc_md.irq_cannonicalize = apus_irq_cannonicalize; ppc_md.init_IRQ = apus_init_IRQ; ppc_md.get_irq = apus_get_irq; ppc_md.post_irq = apus_post_irq; @@ -1023,6 +1110,10 @@ void apus_init(unsigned long r3, unsigned long r4, unsigned long r5, ppc_md.heartbeat = apus_heartbeat; ppc_md.heartbeat_count = 1; #endif +#ifdef APUS_DEBUG + __debug_serinit(); + ppc_md.progress = apus_progress; +#endif ppc_md.init = NULL; ppc_md.restart = apus_restart; |