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	Fixed MTP to work with TWRP
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								arch/m68k/amiga/config.c
									
										
									
									
									
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							|  | @ -0,0 +1,838 @@ | |||
| /*
 | ||||
|  *  linux/arch/m68k/amiga/config.c | ||||
|  * | ||||
|  *  Copyright (C) 1993 Hamish Macdonald | ||||
|  * | ||||
|  * This file is subject to the terms and conditions of the GNU General Public | ||||
|  * License.  See the file COPYING in the main directory of this archive | ||||
|  * for more details. | ||||
|  */ | ||||
| 
 | ||||
| /*
 | ||||
|  * Miscellaneous Amiga stuff | ||||
|  */ | ||||
| 
 | ||||
| #include <linux/types.h> | ||||
| #include <linux/kernel.h> | ||||
| #include <linux/mm.h> | ||||
| #include <linux/seq_file.h> | ||||
| #include <linux/tty.h> | ||||
| #include <linux/console.h> | ||||
| #include <linux/rtc.h> | ||||
| #include <linux/init.h> | ||||
| #include <linux/vt_kern.h> | ||||
| #include <linux/delay.h> | ||||
| #include <linux/interrupt.h> | ||||
| #include <linux/zorro.h> | ||||
| #include <linux/module.h> | ||||
| #include <linux/keyboard.h> | ||||
| 
 | ||||
| #include <asm/bootinfo.h> | ||||
| #include <asm/bootinfo-amiga.h> | ||||
| #include <asm/byteorder.h> | ||||
| #include <asm/setup.h> | ||||
| #include <asm/pgtable.h> | ||||
| #include <asm/amigahw.h> | ||||
| #include <asm/amigaints.h> | ||||
| #include <asm/irq.h> | ||||
| #include <asm/rtc.h> | ||||
| #include <asm/machdep.h> | ||||
| #include <asm/io.h> | ||||
| 
 | ||||
| static unsigned long amiga_model; | ||||
| 
 | ||||
| unsigned long amiga_eclock; | ||||
| EXPORT_SYMBOL(amiga_eclock); | ||||
| 
 | ||||
| unsigned long amiga_colorclock; | ||||
| EXPORT_SYMBOL(amiga_colorclock); | ||||
| 
 | ||||
| unsigned long amiga_chipset; | ||||
| EXPORT_SYMBOL(amiga_chipset); | ||||
| 
 | ||||
| unsigned char amiga_vblank; | ||||
| EXPORT_SYMBOL(amiga_vblank); | ||||
| 
 | ||||
| static unsigned char amiga_psfreq; | ||||
| 
 | ||||
| struct amiga_hw_present amiga_hw_present; | ||||
| EXPORT_SYMBOL(amiga_hw_present); | ||||
| 
 | ||||
| static char s_a500[] __initdata = "A500"; | ||||
| static char s_a500p[] __initdata = "A500+"; | ||||
| static char s_a600[] __initdata = "A600"; | ||||
| static char s_a1000[] __initdata = "A1000"; | ||||
| static char s_a1200[] __initdata = "A1200"; | ||||
| static char s_a2000[] __initdata = "A2000"; | ||||
| static char s_a2500[] __initdata = "A2500"; | ||||
| static char s_a3000[] __initdata = "A3000"; | ||||
| static char s_a3000t[] __initdata = "A3000T"; | ||||
| static char s_a3000p[] __initdata = "A3000+"; | ||||
| static char s_a4000[] __initdata = "A4000"; | ||||
| static char s_a4000t[] __initdata = "A4000T"; | ||||
| static char s_cdtv[] __initdata = "CDTV"; | ||||
| static char s_cd32[] __initdata = "CD32"; | ||||
| static char s_draco[] __initdata = "Draco"; | ||||
| static char *amiga_models[] __initdata = { | ||||
| 	[AMI_500-AMI_500]	= s_a500, | ||||
| 	[AMI_500PLUS-AMI_500]	= s_a500p, | ||||
| 	[AMI_600-AMI_500]	= s_a600, | ||||
| 	[AMI_1000-AMI_500]	= s_a1000, | ||||
| 	[AMI_1200-AMI_500]	= s_a1200, | ||||
| 	[AMI_2000-AMI_500]	= s_a2000, | ||||
| 	[AMI_2500-AMI_500]	= s_a2500, | ||||
| 	[AMI_3000-AMI_500]	= s_a3000, | ||||
| 	[AMI_3000T-AMI_500]	= s_a3000t, | ||||
| 	[AMI_3000PLUS-AMI_500]	= s_a3000p, | ||||
| 	[AMI_4000-AMI_500]	= s_a4000, | ||||
| 	[AMI_4000T-AMI_500]	= s_a4000t, | ||||
| 	[AMI_CDTV-AMI_500]	= s_cdtv, | ||||
| 	[AMI_CD32-AMI_500]	= s_cd32, | ||||
| 	[AMI_DRACO-AMI_500]	= s_draco, | ||||
| }; | ||||
| 
 | ||||
| static char amiga_model_name[13] = "Amiga "; | ||||
| 
 | ||||
| static void amiga_sched_init(irq_handler_t handler); | ||||
| static void amiga_get_model(char *model); | ||||
| static void amiga_get_hardware_list(struct seq_file *m); | ||||
| /* amiga specific timer functions */ | ||||
| static u32 amiga_gettimeoffset(void); | ||||
| extern void amiga_mksound(unsigned int count, unsigned int ticks); | ||||
| static void amiga_reset(void); | ||||
| extern void amiga_init_sound(void); | ||||
| static void amiga_mem_console_write(struct console *co, const char *b, | ||||
| 				    unsigned int count); | ||||
| #ifdef CONFIG_HEARTBEAT | ||||
| static void amiga_heartbeat(int on); | ||||
| #endif | ||||
| 
 | ||||
| static struct console amiga_console_driver = { | ||||
| 	.name	= "debug", | ||||
| 	.flags	= CON_PRINTBUFFER, | ||||
| 	.index	= -1, | ||||
| }; | ||||
| 
 | ||||
| 
 | ||||
|     /*
 | ||||
|      *  Motherboard Resources present in all Amiga models | ||||
|      */ | ||||
| 
 | ||||
| static struct { | ||||
| 	struct resource _ciab, _ciaa, _custom, _kickstart; | ||||
| } mb_resources = { | ||||
| 	._ciab = { | ||||
| 		.name = "CIA B", .start = 0x00bfd000, .end = 0x00bfdfff | ||||
| 	}, | ||||
| 	._ciaa = { | ||||
| 		.name = "CIA A", .start = 0x00bfe000, .end = 0x00bfefff | ||||
| 	}, | ||||
| 	._custom = { | ||||
| 		.name = "Custom I/O", .start = 0x00dff000, .end = 0x00dfffff | ||||
| 	}, | ||||
| 	._kickstart = { | ||||
| 		.name = "Kickstart ROM", .start = 0x00f80000, .end = 0x00ffffff | ||||
| 	} | ||||
| }; | ||||
| 
 | ||||
| static struct resource ram_resource[NUM_MEMINFO]; | ||||
| 
 | ||||
| 
 | ||||
|     /*
 | ||||
|      *  Parse an Amiga-specific record in the bootinfo | ||||
|      */ | ||||
| 
 | ||||
| int __init amiga_parse_bootinfo(const struct bi_record *record) | ||||
| { | ||||
| 	int unknown = 0; | ||||
| 	const void *data = record->data; | ||||
| 
 | ||||
| 	switch (be16_to_cpu(record->tag)) { | ||||
| 	case BI_AMIGA_MODEL: | ||||
| 		amiga_model = be32_to_cpup(data); | ||||
| 		break; | ||||
| 
 | ||||
| 	case BI_AMIGA_ECLOCK: | ||||
| 		amiga_eclock = be32_to_cpup(data); | ||||
| 		break; | ||||
| 
 | ||||
| 	case BI_AMIGA_CHIPSET: | ||||
| 		amiga_chipset = be32_to_cpup(data); | ||||
| 		break; | ||||
| 
 | ||||
| 	case BI_AMIGA_CHIP_SIZE: | ||||
| 		amiga_chip_size = be32_to_cpup(data); | ||||
| 		break; | ||||
| 
 | ||||
| 	case BI_AMIGA_VBLANK: | ||||
| 		amiga_vblank = *(const __u8 *)data; | ||||
| 		break; | ||||
| 
 | ||||
| 	case BI_AMIGA_PSFREQ: | ||||
| 		amiga_psfreq = *(const __u8 *)data; | ||||
| 		break; | ||||
| 
 | ||||
| 	case BI_AMIGA_AUTOCON: | ||||
| #ifdef CONFIG_ZORRO | ||||
| 		if (zorro_num_autocon < ZORRO_NUM_AUTO) { | ||||
| 			const struct ConfigDev *cd = data; | ||||
| 			struct zorro_dev_init *dev = &zorro_autocon_init[zorro_num_autocon++]; | ||||
| 			dev->rom = cd->cd_Rom; | ||||
| 			dev->slotaddr = be16_to_cpu(cd->cd_SlotAddr); | ||||
| 			dev->slotsize = be16_to_cpu(cd->cd_SlotSize); | ||||
| 			dev->boardaddr = be32_to_cpu(cd->cd_BoardAddr); | ||||
| 			dev->boardsize = be32_to_cpu(cd->cd_BoardSize); | ||||
| 		} else | ||||
| 			pr_warn("amiga_parse_bootinfo: too many AutoConfig devices\n"); | ||||
| #endif /* CONFIG_ZORRO */ | ||||
| 		break; | ||||
| 
 | ||||
| 	case BI_AMIGA_SERPER: | ||||
| 		/* serial port period: ignored here */ | ||||
| 		break; | ||||
| 
 | ||||
| 	default: | ||||
| 		unknown = 1; | ||||
| 	} | ||||
| 	return unknown; | ||||
| } | ||||
| 
 | ||||
|     /*
 | ||||
|      *  Identify builtin hardware | ||||
|      */ | ||||
| 
 | ||||
| static void __init amiga_identify(void) | ||||
| { | ||||
| 	/* Fill in some default values, if necessary */ | ||||
| 	if (amiga_eclock == 0) | ||||
| 		amiga_eclock = 709379; | ||||
| 
 | ||||
| 	memset(&amiga_hw_present, 0, sizeof(amiga_hw_present)); | ||||
| 
 | ||||
| 	pr_info("Amiga hardware found: "); | ||||
| 	if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) { | ||||
| 		pr_cont("[%s] ", amiga_models[amiga_model-AMI_500]); | ||||
| 		strcat(amiga_model_name, amiga_models[amiga_model-AMI_500]); | ||||
| 	} | ||||
| 
 | ||||
| 	switch (amiga_model) { | ||||
| 	case AMI_UNKNOWN: | ||||
| 		goto Generic; | ||||
| 
 | ||||
| 	case AMI_600: | ||||
| 	case AMI_1200: | ||||
| 		AMIGAHW_SET(A1200_IDE); | ||||
| 		AMIGAHW_SET(PCMCIA); | ||||
| 	case AMI_500: | ||||
| 	case AMI_500PLUS: | ||||
| 	case AMI_1000: | ||||
| 	case AMI_2000: | ||||
| 	case AMI_2500: | ||||
| 		AMIGAHW_SET(A2000_CLK);	/* Is this correct for all models? */ | ||||
| 		goto Generic; | ||||
| 
 | ||||
| 	case AMI_3000: | ||||
| 	case AMI_3000T: | ||||
| 		AMIGAHW_SET(AMBER_FF); | ||||
| 		AMIGAHW_SET(MAGIC_REKICK); | ||||
| 		/* fall through */ | ||||
| 	case AMI_3000PLUS: | ||||
| 		AMIGAHW_SET(A3000_SCSI); | ||||
| 		AMIGAHW_SET(A3000_CLK); | ||||
| 		AMIGAHW_SET(ZORRO3); | ||||
| 		goto Generic; | ||||
| 
 | ||||
| 	case AMI_4000T: | ||||
| 		AMIGAHW_SET(A4000_SCSI); | ||||
| 		/* fall through */ | ||||
| 	case AMI_4000: | ||||
| 		AMIGAHW_SET(A4000_IDE); | ||||
| 		AMIGAHW_SET(A3000_CLK); | ||||
| 		AMIGAHW_SET(ZORRO3); | ||||
| 		goto Generic; | ||||
| 
 | ||||
| 	case AMI_CDTV: | ||||
| 	case AMI_CD32: | ||||
| 		AMIGAHW_SET(CD_ROM); | ||||
| 		AMIGAHW_SET(A2000_CLK);             /* Is this correct? */ | ||||
| 		goto Generic; | ||||
| 
 | ||||
| 	Generic: | ||||
| 		AMIGAHW_SET(AMI_VIDEO); | ||||
| 		AMIGAHW_SET(AMI_BLITTER); | ||||
| 		AMIGAHW_SET(AMI_AUDIO); | ||||
| 		AMIGAHW_SET(AMI_FLOPPY); | ||||
| 		AMIGAHW_SET(AMI_KEYBOARD); | ||||
| 		AMIGAHW_SET(AMI_MOUSE); | ||||
| 		AMIGAHW_SET(AMI_SERIAL); | ||||
| 		AMIGAHW_SET(AMI_PARALLEL); | ||||
| 		AMIGAHW_SET(CHIP_RAM); | ||||
| 		AMIGAHW_SET(PAULA); | ||||
| 
 | ||||
| 		switch (amiga_chipset) { | ||||
| 		case CS_OCS: | ||||
| 		case CS_ECS: | ||||
| 		case CS_AGA: | ||||
| 			switch (amiga_custom.deniseid & 0xf) { | ||||
| 			case 0x0c: | ||||
| 				AMIGAHW_SET(DENISE_HR); | ||||
| 				break; | ||||
| 			case 0x08: | ||||
| 				AMIGAHW_SET(LISA); | ||||
| 				break; | ||||
| 			} | ||||
| 			break; | ||||
| 		default: | ||||
| 			AMIGAHW_SET(DENISE); | ||||
| 			break; | ||||
| 		} | ||||
| 		switch ((amiga_custom.vposr>>8) & 0x7f) { | ||||
| 		case 0x00: | ||||
| 			AMIGAHW_SET(AGNUS_PAL); | ||||
| 			break; | ||||
| 		case 0x10: | ||||
| 			AMIGAHW_SET(AGNUS_NTSC); | ||||
| 			break; | ||||
| 		case 0x20: | ||||
| 		case 0x21: | ||||
| 			AMIGAHW_SET(AGNUS_HR_PAL); | ||||
| 			break; | ||||
| 		case 0x30: | ||||
| 		case 0x31: | ||||
| 			AMIGAHW_SET(AGNUS_HR_NTSC); | ||||
| 			break; | ||||
| 		case 0x22: | ||||
| 		case 0x23: | ||||
| 			AMIGAHW_SET(ALICE_PAL); | ||||
| 			break; | ||||
| 		case 0x32: | ||||
| 		case 0x33: | ||||
| 			AMIGAHW_SET(ALICE_NTSC); | ||||
| 			break; | ||||
| 		} | ||||
| 		AMIGAHW_SET(ZORRO); | ||||
| 		break; | ||||
| 
 | ||||
| 	case AMI_DRACO: | ||||
| 		panic("No support for Draco yet"); | ||||
| 
 | ||||
| 	default: | ||||
| 		panic("Unknown Amiga Model"); | ||||
| 	} | ||||
| 
 | ||||
| #define AMIGAHW_ANNOUNCE(name, str)		\ | ||||
| 	if (AMIGAHW_PRESENT(name))		\ | ||||
| 		pr_cont(str) | ||||
| 
 | ||||
| 	AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO "); | ||||
| 	AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER "); | ||||
| 	AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF "); | ||||
| 	AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO "); | ||||
| 	AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY "); | ||||
| 	AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI "); | ||||
| 	AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI "); | ||||
| 	AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE "); | ||||
| 	AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE "); | ||||
| 	AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM "); | ||||
| 	AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD "); | ||||
| 	AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE "); | ||||
| 	AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL "); | ||||
| 	AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL "); | ||||
| 	AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK "); | ||||
| 	AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK "); | ||||
| 	AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM "); | ||||
| 	AMIGAHW_ANNOUNCE(PAULA, "PAULA "); | ||||
| 	AMIGAHW_ANNOUNCE(DENISE, "DENISE "); | ||||
| 	AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR "); | ||||
| 	AMIGAHW_ANNOUNCE(LISA, "LISA "); | ||||
| 	AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL "); | ||||
| 	AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC "); | ||||
| 	AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL "); | ||||
| 	AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC "); | ||||
| 	AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL "); | ||||
| 	AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC "); | ||||
| 	AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK "); | ||||
| 	AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA "); | ||||
| 	if (AMIGAHW_PRESENT(ZORRO)) | ||||
| 		pr_cont("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : ""); | ||||
| 	pr_cont("\n"); | ||||
| 
 | ||||
| #undef AMIGAHW_ANNOUNCE | ||||
| } | ||||
| 
 | ||||
| 
 | ||||
| static unsigned long amiga_random_get_entropy(void) | ||||
| { | ||||
| 	/* VPOSR/VHPOSR provide at least 17 bits of data changing at 1.79 MHz */ | ||||
| 	return *(unsigned long *)&amiga_custom.vposr; | ||||
| } | ||||
| 
 | ||||
| 
 | ||||
|     /*
 | ||||
|      *  Setup the Amiga configuration info | ||||
|      */ | ||||
| 
 | ||||
| void __init config_amiga(void) | ||||
| { | ||||
| 	int i; | ||||
| 
 | ||||
| 	amiga_identify(); | ||||
| 
 | ||||
| 	/* Yuk, we don't have PCI memory */ | ||||
| 	iomem_resource.name = "Memory"; | ||||
| 	for (i = 0; i < 4; i++) | ||||
| 		request_resource(&iomem_resource, &((struct resource *)&mb_resources)[i]); | ||||
| 
 | ||||
| 	mach_sched_init      = amiga_sched_init; | ||||
| 	mach_init_IRQ        = amiga_init_IRQ; | ||||
| 	mach_get_model       = amiga_get_model; | ||||
| 	mach_get_hardware_list = amiga_get_hardware_list; | ||||
| 	arch_gettimeoffset   = amiga_gettimeoffset; | ||||
| 
 | ||||
| 	/*
 | ||||
| 	 * default MAX_DMA=0xffffffff on all machines. If we don't do so, the SCSI | ||||
| 	 * code will not be able to allocate any mem for transfers, unless we are | ||||
| 	 * dealing with a Z2 mem only system.                  /Jes | ||||
| 	 */ | ||||
| 	mach_max_dma_address = 0xffffffff; | ||||
| 
 | ||||
| 	mach_reset           = amiga_reset; | ||||
| #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE) | ||||
| 	mach_beep            = amiga_mksound; | ||||
| #endif | ||||
| 
 | ||||
| #ifdef CONFIG_HEARTBEAT | ||||
| 	mach_heartbeat = amiga_heartbeat; | ||||
| #endif | ||||
| 
 | ||||
| 	mach_random_get_entropy = amiga_random_get_entropy; | ||||
| 
 | ||||
| 	/* Fill in the clock value (based on the 700 kHz E-Clock) */ | ||||
| 	amiga_colorclock = 5*amiga_eclock;	/* 3.5 MHz */ | ||||
| 
 | ||||
| 	/* clear all DMA bits */ | ||||
| 	amiga_custom.dmacon = DMAF_ALL; | ||||
| 	/* ensure that the DMA master bit is set */ | ||||
| 	amiga_custom.dmacon = DMAF_SETCLR | DMAF_MASTER; | ||||
| 
 | ||||
| 	/* don't use Z2 RAM as system memory on Z3 capable machines */ | ||||
| 	if (AMIGAHW_PRESENT(ZORRO3)) { | ||||
| 		int i, j; | ||||
| 		u32 disabled_z2mem = 0; | ||||
| 
 | ||||
| 		for (i = 0; i < m68k_num_memory; i++) { | ||||
| 			if (m68k_memory[i].addr < 16*1024*1024) { | ||||
| 				if (i == 0) { | ||||
| 					/* don't cut off the branch we're sitting on */ | ||||
| 					pr_warn("Warning: kernel runs in Zorro II memory\n"); | ||||
| 					continue; | ||||
| 				} | ||||
| 				disabled_z2mem += m68k_memory[i].size; | ||||
| 				m68k_num_memory--; | ||||
| 				for (j = i; j < m68k_num_memory; j++) | ||||
| 					m68k_memory[j] = m68k_memory[j+1]; | ||||
| 				i--; | ||||
| 			} | ||||
| 		} | ||||
| 		if (disabled_z2mem) | ||||
| 			pr_info("%dK of Zorro II memory will not be used as system memory\n", | ||||
| 				disabled_z2mem>>10); | ||||
| 	} | ||||
| 
 | ||||
| 	/* request all RAM */ | ||||
| 	for (i = 0; i < m68k_num_memory; i++) { | ||||
| 		ram_resource[i].name = | ||||
| 			(m68k_memory[i].addr >= 0x01000000) ? "32-bit Fast RAM" : | ||||
| 			(m68k_memory[i].addr < 0x00c00000) ? "16-bit Fast RAM" : | ||||
| 			"16-bit Slow RAM"; | ||||
| 		ram_resource[i].start = m68k_memory[i].addr; | ||||
| 		ram_resource[i].end = m68k_memory[i].addr+m68k_memory[i].size-1; | ||||
| 		request_resource(&iomem_resource, &ram_resource[i]); | ||||
| 	} | ||||
| 
 | ||||
| 	/* initialize chipram allocator */ | ||||
| 	amiga_chip_init(); | ||||
| 
 | ||||
| 	/* our beloved beeper */ | ||||
| 	if (AMIGAHW_PRESENT(AMI_AUDIO)) | ||||
| 		amiga_init_sound(); | ||||
| 
 | ||||
| 	/*
 | ||||
| 	 * if it is an A3000, set the magic bit that forces | ||||
| 	 * a hard rekick | ||||
| 	 */ | ||||
| 	if (AMIGAHW_PRESENT(MAGIC_REKICK)) | ||||
| 		*(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80; | ||||
| } | ||||
| 
 | ||||
| static unsigned short jiffy_ticks; | ||||
| 
 | ||||
| static void __init amiga_sched_init(irq_handler_t timer_routine) | ||||
| { | ||||
| 	static struct resource sched_res = { | ||||
| 		.name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff, | ||||
| 	}; | ||||
| 	jiffy_ticks = DIV_ROUND_CLOSEST(amiga_eclock, HZ); | ||||
| 
 | ||||
| 	if (request_resource(&mb_resources._ciab, &sched_res)) | ||||
| 		pr_warn("Cannot allocate ciab.ta{lo,hi}\n"); | ||||
| 	ciab.cra &= 0xC0;   /* turn off timer A, continuous mode, from Eclk */ | ||||
| 	ciab.talo = jiffy_ticks % 256; | ||||
| 	ciab.tahi = jiffy_ticks / 256; | ||||
| 
 | ||||
| 	/* install interrupt service routine for CIAB Timer A
 | ||||
| 	 * | ||||
| 	 * Please don't change this to use ciaa, as it interferes with the | ||||
| 	 * SCSI code. We'll have to take a look at this later | ||||
| 	 */ | ||||
| 	if (request_irq(IRQ_AMIGA_CIAB_TA, timer_routine, 0, "timer", NULL)) | ||||
| 		pr_err("Couldn't register timer interrupt\n"); | ||||
| 	/* start timer */ | ||||
| 	ciab.cra |= 0x11; | ||||
| } | ||||
| 
 | ||||
| #define TICK_SIZE 10000 | ||||
| 
 | ||||
| /* This is always executed with interrupts disabled.  */ | ||||
| static u32 amiga_gettimeoffset(void) | ||||
| { | ||||
| 	unsigned short hi, lo, hi2; | ||||
| 	u32 ticks, offset = 0; | ||||
| 
 | ||||
| 	/* read CIA B timer A current value */ | ||||
| 	hi  = ciab.tahi; | ||||
| 	lo  = ciab.talo; | ||||
| 	hi2 = ciab.tahi; | ||||
| 
 | ||||
| 	if (hi != hi2) { | ||||
| 		lo = ciab.talo; | ||||
| 		hi = hi2; | ||||
| 	} | ||||
| 
 | ||||
| 	ticks = hi << 8 | lo; | ||||
| 
 | ||||
| 	if (ticks > jiffy_ticks / 2) | ||||
| 		/* check for pending interrupt */ | ||||
| 		if (cia_set_irq(&ciab_base, 0) & CIA_ICR_TA) | ||||
| 			offset = 10000; | ||||
| 
 | ||||
| 	ticks = jiffy_ticks - ticks; | ||||
| 	ticks = (10000 * ticks) / jiffy_ticks; | ||||
| 
 | ||||
| 	return (ticks + offset) * 1000; | ||||
| } | ||||
| 
 | ||||
| static void amiga_reset(void)  __noreturn; | ||||
| 
 | ||||
| static void amiga_reset(void) | ||||
| { | ||||
| 	unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); | ||||
| 	unsigned long jmp_addr = virt_to_phys(&&jmp_addr_label); | ||||
| 
 | ||||
| 	local_irq_disable(); | ||||
| 	if (CPU_IS_040_OR_060) | ||||
| 		/* Setup transparent translation registers for mapping
 | ||||
| 		 * of 16 MB kernel segment before disabling translation | ||||
| 		 */ | ||||
| 		asm volatile ("\n" | ||||
| 			"	move.l	%0,%%d0\n" | ||||
| 			"	and.l	#0xff000000,%%d0\n" | ||||
| 			"	or.w	#0xe020,%%d0\n"   /* map 16 MB, enable, cacheable */ | ||||
| 			"	.chip	68040\n" | ||||
| 			"	movec	%%d0,%%itt0\n" | ||||
| 			"	movec	%%d0,%%dtt0\n" | ||||
| 			"	.chip	68k\n" | ||||
| 			"	jmp	%0@\n" | ||||
| 			: /* no outputs */ | ||||
| 			: "a" (jmp_addr040) | ||||
| 			: "d0"); | ||||
| 	else | ||||
| 		/* for 680[23]0, just disable translation and jump to the physical
 | ||||
| 		 * address of the label | ||||
| 		 */ | ||||
| 		asm volatile ("\n" | ||||
| 			"	pmove	%%tc,%@\n" | ||||
| 			"	bclr	#7,%@\n" | ||||
| 			"	pmove	%@,%%tc\n" | ||||
| 			"	jmp	%0@\n" | ||||
| 			: /* no outputs */ | ||||
| 			: "a" (jmp_addr)); | ||||
| jmp_addr_label040: | ||||
| 	/* disable translation on '040 now */ | ||||
| 	asm volatile ("\n" | ||||
| 		"	moveq	#0,%%d0\n" | ||||
| 		"	.chip	68040\n" | ||||
| 		"	movec	%%d0,%%tc\n"	/* disable MMU */ | ||||
| 		"	.chip	68k\n" | ||||
| 		: /* no outputs */ | ||||
| 		: /* no inputs */ | ||||
| 		: "d0"); | ||||
| 
 | ||||
| 	jmp_addr_label: | ||||
| 	/* pickup reset address from AmigaOS ROM, reset devices and jump
 | ||||
| 	 * to reset address | ||||
| 	 */ | ||||
| 	asm volatile ("\n" | ||||
| 		"	move.w	#0x2700,%sr\n" | ||||
| 		"	lea	0x01000000,%a0\n" | ||||
| 		"	sub.l	%a0@(-0x14),%a0\n" | ||||
| 		"	move.l	%a0@(4),%a0\n" | ||||
| 		"	subq.l	#2,%a0\n" | ||||
| 		"	jra	1f\n" | ||||
| 		/* align on a longword boundary */ | ||||
| 		"	" __ALIGN_STR "\n" | ||||
| 		"1:\n" | ||||
| 		"	reset\n" | ||||
| 		"	jmp   %a0@"); | ||||
| 
 | ||||
| 	for (;;) | ||||
| 		; | ||||
| } | ||||
| 
 | ||||
| 
 | ||||
|     /*
 | ||||
|      *  Debugging | ||||
|      */ | ||||
| 
 | ||||
| #define SAVEKMSG_MAXMEM		128*1024 | ||||
| 
 | ||||
| #define SAVEKMSG_MAGIC1		0x53415645	/* 'SAVE' */ | ||||
| #define SAVEKMSG_MAGIC2		0x4B4D5347	/* 'KMSG' */ | ||||
| 
 | ||||
| struct savekmsg { | ||||
| 	unsigned long magic1;		/* SAVEKMSG_MAGIC1 */ | ||||
| 	unsigned long magic2;		/* SAVEKMSG_MAGIC2 */ | ||||
| 	unsigned long magicptr;		/* address of magic1 */ | ||||
| 	unsigned long size; | ||||
| 	char data[0]; | ||||
| }; | ||||
| 
 | ||||
| static struct savekmsg *savekmsg; | ||||
| 
 | ||||
| static void amiga_mem_console_write(struct console *co, const char *s, | ||||
| 				    unsigned int count) | ||||
| { | ||||
| 	if (savekmsg->size + count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) { | ||||
| 		memcpy(savekmsg->data + savekmsg->size, s, count); | ||||
| 		savekmsg->size += count; | ||||
| 	} | ||||
| } | ||||
| 
 | ||||
| static int __init amiga_savekmsg_setup(char *arg) | ||||
| { | ||||
| 	bool registered; | ||||
| 
 | ||||
| 	if (!MACH_IS_AMIGA || strcmp(arg, "mem")) | ||||
| 		return 0; | ||||
| 
 | ||||
| 	if (amiga_chip_size < SAVEKMSG_MAXMEM) { | ||||
| 		pr_err("Not enough chipram for debugging\n"); | ||||
| 		return -ENOMEM; | ||||
| 	} | ||||
| 
 | ||||
| 	/* Just steal the block, the chipram allocator isn't functional yet */ | ||||
| 	amiga_chip_size -= SAVEKMSG_MAXMEM; | ||||
| 	savekmsg = ZTWO_VADDR(CHIP_PHYSADDR + amiga_chip_size); | ||||
| 	savekmsg->magic1 = SAVEKMSG_MAGIC1; | ||||
| 	savekmsg->magic2 = SAVEKMSG_MAGIC2; | ||||
| 	savekmsg->magicptr = ZTWO_PADDR(savekmsg); | ||||
| 	savekmsg->size = 0; | ||||
| 
 | ||||
| 	registered = !!amiga_console_driver.write; | ||||
| 	amiga_console_driver.write = amiga_mem_console_write; | ||||
| 	if (!registered) | ||||
| 		register_console(&amiga_console_driver); | ||||
| 	return 0; | ||||
| } | ||||
| 
 | ||||
| early_param("debug", amiga_savekmsg_setup); | ||||
| 
 | ||||
| static void amiga_serial_putc(char c) | ||||
| { | ||||
| 	amiga_custom.serdat = (unsigned char)c | 0x100; | ||||
| 	while (!(amiga_custom.serdatr & 0x2000)) | ||||
| 		; | ||||
| } | ||||
| 
 | ||||
| static void amiga_serial_console_write(struct console *co, const char *s, | ||||
| 				       unsigned int count) | ||||
| { | ||||
| 	while (count--) { | ||||
| 		if (*s == '\n') | ||||
| 			amiga_serial_putc('\r'); | ||||
| 		amiga_serial_putc(*s++); | ||||
| 	} | ||||
| } | ||||
| 
 | ||||
| #if 0 | ||||
| void amiga_serial_puts(const char *s) | ||||
| { | ||||
| 	amiga_serial_console_write(NULL, s, strlen(s)); | ||||
| } | ||||
| 
 | ||||
| int amiga_serial_console_wait_key(struct console *co) | ||||
| { | ||||
| 	int ch; | ||||
| 
 | ||||
| 	while (!(amiga_custom.intreqr & IF_RBF)) | ||||
| 		barrier(); | ||||
| 	ch = amiga_custom.serdatr & 0xff; | ||||
| 	/* clear the interrupt, so that another character can be read */ | ||||
| 	amiga_custom.intreq = IF_RBF; | ||||
| 	return ch; | ||||
| } | ||||
| 
 | ||||
| void amiga_serial_gets(struct console *co, char *s, int len) | ||||
| { | ||||
| 	int ch, cnt = 0; | ||||
| 
 | ||||
| 	while (1) { | ||||
| 		ch = amiga_serial_console_wait_key(co); | ||||
| 
 | ||||
| 		/* Check for backspace. */ | ||||
| 		if (ch == 8 || ch == 127) { | ||||
| 			if (cnt == 0) { | ||||
| 				amiga_serial_putc('\007'); | ||||
| 				continue; | ||||
| 			} | ||||
| 			cnt--; | ||||
| 			amiga_serial_puts("\010 \010"); | ||||
| 			continue; | ||||
| 		} | ||||
| 
 | ||||
| 		/* Check for enter. */ | ||||
| 		if (ch == 10 || ch == 13) | ||||
| 			break; | ||||
| 
 | ||||
| 		/* See if line is too long. */ | ||||
| 		if (cnt >= len + 1) { | ||||
| 			amiga_serial_putc(7); | ||||
| 			cnt--; | ||||
| 			continue; | ||||
| 		} | ||||
| 
 | ||||
| 		/* Store and echo character. */ | ||||
| 		s[cnt++] = ch; | ||||
| 		amiga_serial_putc(ch); | ||||
| 	} | ||||
| 	/* Print enter. */ | ||||
| 	amiga_serial_puts("\r\n"); | ||||
| 	s[cnt] = 0; | ||||
| } | ||||
| #endif | ||||
| 
 | ||||
| static int __init amiga_debug_setup(char *arg) | ||||
| { | ||||
| 	bool registered; | ||||
| 
 | ||||
| 	if (!MACH_IS_AMIGA || strcmp(arg, "ser")) | ||||
| 		return 0; | ||||
| 
 | ||||
| 	/* no initialization required (?) */ | ||||
| 	registered = !!amiga_console_driver.write; | ||||
| 	amiga_console_driver.write = amiga_serial_console_write; | ||||
| 	if (!registered) | ||||
| 		register_console(&amiga_console_driver); | ||||
| 	return 0; | ||||
| } | ||||
| 
 | ||||
| early_param("debug", amiga_debug_setup); | ||||
| 
 | ||||
| #ifdef CONFIG_HEARTBEAT | ||||
| static void amiga_heartbeat(int on) | ||||
| { | ||||
| 	if (on) | ||||
| 		ciaa.pra &= ~2; | ||||
| 	else | ||||
| 		ciaa.pra |= 2; | ||||
| } | ||||
| #endif | ||||
| 
 | ||||
|     /*
 | ||||
|      *  Amiga specific parts of /proc | ||||
|      */ | ||||
| 
 | ||||
| static void amiga_get_model(char *model) | ||||
| { | ||||
| 	strcpy(model, amiga_model_name); | ||||
| } | ||||
| 
 | ||||
| 
 | ||||
| static void amiga_get_hardware_list(struct seq_file *m) | ||||
| { | ||||
| 	if (AMIGAHW_PRESENT(CHIP_RAM)) | ||||
| 		seq_printf(m, "Chip RAM:\t%ldK\n", amiga_chip_size>>10); | ||||
| 	seq_printf(m, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n", | ||||
| 			amiga_psfreq, amiga_eclock); | ||||
| 	if (AMIGAHW_PRESENT(AMI_VIDEO)) { | ||||
| 		char *type; | ||||
| 		switch (amiga_chipset) { | ||||
| 		case CS_OCS: | ||||
| 			type = "OCS"; | ||||
| 			break; | ||||
| 		case CS_ECS: | ||||
| 			type = "ECS"; | ||||
| 			break; | ||||
| 		case CS_AGA: | ||||
| 			type = "AGA"; | ||||
| 			break; | ||||
| 		default: | ||||
| 			type = "Old or Unknown"; | ||||
| 			break; | ||||
| 		} | ||||
| 		seq_printf(m, "Graphics:\t%s\n", type); | ||||
| 	} | ||||
| 
 | ||||
| #define AMIGAHW_ANNOUNCE(name, str)			\ | ||||
| 	if (AMIGAHW_PRESENT(name))			\ | ||||
| 		seq_printf (m, "\t%s\n", str) | ||||
| 
 | ||||
| 	seq_printf (m, "Detected hardware:\n"); | ||||
| 
 | ||||
| 	AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video"); | ||||
| 	AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter"); | ||||
| 	AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer"); | ||||
| 	AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio"); | ||||
| 	AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller"); | ||||
| 	AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)"); | ||||
| 	AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)"); | ||||
| 	AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)"); | ||||
| 	AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)"); | ||||
| 	AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive"); | ||||
| 	AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard"); | ||||
| 	AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port"); | ||||
| 	AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port"); | ||||
| 	AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port"); | ||||
| 	AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)"); | ||||
| 	AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)"); | ||||
| 	AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM"); | ||||
| 	AMIGAHW_ANNOUNCE(PAULA, "Paula 8364"); | ||||
| 	AMIGAHW_ANNOUNCE(DENISE, "Denise 8362"); | ||||
| 	AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373"); | ||||
| 	AMIGAHW_ANNOUNCE(LISA, "Lisa 8375"); | ||||
| 	AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371"); | ||||
| 	AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370"); | ||||
| 	AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372"); | ||||
| 	AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372"); | ||||
| 	AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374"); | ||||
| 	AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374"); | ||||
| 	AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick"); | ||||
| 	AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot"); | ||||
| #ifdef CONFIG_ZORRO | ||||
| 	if (AMIGAHW_PRESENT(ZORRO)) | ||||
| 		seq_printf(m, "\tZorro II%s AutoConfig: %d Expansion " | ||||
| 				"Device%s\n", | ||||
| 				AMIGAHW_PRESENT(ZORRO3) ? "I" : "", | ||||
| 				zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s"); | ||||
| #endif /* CONFIG_ZORRO */ | ||||
| 
 | ||||
| #undef AMIGAHW_ANNOUNCE | ||||
| } | ||||
| 
 | ||||
| /*
 | ||||
|  * The Amiga keyboard driver needs key_maps, but we cannot export it in | ||||
|  * drivers/char/defkeymap.c, as it is autogenerated | ||||
|  */ | ||||
| #ifdef CONFIG_HW_CONSOLE | ||||
| EXPORT_SYMBOL_GPL(key_maps); | ||||
| #endif | ||||
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