Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 937 insertions, 0 deletions

diff --git a/arch/m68k/atari/config.c b/arch/m68k/atari/config.c
new file mode 100644
index 000000000..38a7c0578
--- /dev/null
+++ b/arch/m68k/atari/config.c
@@ -0,0 +1,937 @@
+/*
+ *  linux/arch/m68k/atari/config.c
+ *
+ *  Copyright (C) 1994 Bjoern Brauel
+ *
+ *  5/2/94 Roman Hodek:
+ *    Added setting of time_adj to get a better clock.
+ *
+ *  5/14/94 Roman Hodek:
+ *    gettod() for TT
+ *
+ *  5/15/94 Roman Hodek:
+ *    hard_reset_now() for Atari (and others?)
+ *
+ *  94/12/30 Andreas Schwab:
+ *    atari_sched_init fixed to get precise clock.
+ *
+ * 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 atari stuff
+ */
+
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/seq_file.h>
+#include <linux/console.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/ioport.h>
+#include <linux/platform_device.h>
+#include <linux/usb/isp116x.h>
+#include <linux/vt_kern.h>
+#include <linux/module.h>
+
+#include <asm/bootinfo.h>
+#include <asm/bootinfo-atari.h>
+#include <asm/byteorder.h>
+#include <asm/setup.h>
+#include <asm/atarihw.h>
+#include <asm/atariints.h>
+#include <asm/atari_stram.h>
+#include <asm/machdep.h>
+#include <asm/hwtest.h>
+#include <asm/io.h>
+#include <asm/config.h>
+
+u_long atari_mch_cookie;
+EXPORT_SYMBOL(atari_mch_cookie);
+
+u_long atari_mch_type;
+EXPORT_SYMBOL(atari_mch_type);
+
+struct atari_hw_present atari_hw_present;
+EXPORT_SYMBOL(atari_hw_present);
+
+u_long atari_switches;
+EXPORT_SYMBOL(atari_switches);
+
+int atari_dont_touch_floppy_select;
+EXPORT_SYMBOL(atari_dont_touch_floppy_select);
+
+int atari_rtc_year_offset;
+
+/* local function prototypes */
+static void atari_reset(void);
+static void atari_get_model(char *model);
+static void atari_get_hardware_list(struct seq_file *m);
+
+/* atari specific irq functions */
+extern void atari_init_IRQ (void);
+extern void atari_mksound(unsigned int count, unsigned int ticks);
+#ifdef CONFIG_HEARTBEAT
+static void atari_heartbeat(int on);
+#endif
+
+/* atari specific timer functions (in time.c) */
+extern void atari_sched_init(void);
+extern int atari_mste_hwclk (int, struct rtc_time *);
+extern int atari_tt_hwclk (int, struct rtc_time *);
+
+/* ++roman: This is a more elaborate test for an SCC chip, since the plain
+ * Medusa board generates DTACK at the SCC's standard addresses, but a SCC
+ * board in the Medusa is possible. Also, the addresses where the ST_ESCC
+ * resides generate DTACK without the chip, too.
+ * The method is to write values into the interrupt vector register, that
+ * should be readable without trouble (from channel A!).
+ */
+
+static int __init scc_test(volatile char *ctla)
+{
+	if (!hwreg_present(ctla))
+		return 0;
+	MFPDELAY();
+
+	*ctla = 2;
+	MFPDELAY();
+	*ctla = 0x40;
+	MFPDELAY();
+
+	*ctla = 2;
+	MFPDELAY();
+	if (*ctla != 0x40)
+		return 0;
+	MFPDELAY();
+
+	*ctla = 2;
+	MFPDELAY();
+	*ctla = 0x60;
+	MFPDELAY();
+
+	*ctla = 2;
+	MFPDELAY();
+	if (*ctla != 0x60)
+		return 0;
+
+	return 1;
+}
+
+
+    /*
+     *  Parse an Atari-specific record in the bootinfo
+     */
+
+int __init atari_parse_bootinfo(const struct bi_record *record)
+{
+	int unknown = 0;
+	const void *data = record->data;
+
+	switch (be16_to_cpu(record->tag)) {
+	case BI_ATARI_MCH_COOKIE:
+		atari_mch_cookie = be32_to_cpup(data);
+		break;
+	case BI_ATARI_MCH_TYPE:
+		atari_mch_type = be32_to_cpup(data);
+		break;
+	default:
+		unknown = 1;
+		break;
+	}
+	return unknown;
+}
+
+
+/* Parse the Atari-specific switches= option. */
+static int __init atari_switches_setup(char *str)
+{
+	char switches[COMMAND_LINE_SIZE];
+	char *p;
+	int ovsc_shift;
+	char *args = switches;
+
+	if (!MACH_IS_ATARI)
+		return 0;
+
+	/* copy string to local array, strsep works destructively... */
+	strcpy(switches, str);
+	atari_switches = 0;
+
+	/* parse the options */
+	while ((p = strsep(&args, ",")) != NULL) {
+		if (!*p)
+			continue;
+		ovsc_shift = 0;
+		if (strncmp(p, "ov_", 3) == 0) {
+			p += 3;
+			ovsc_shift = ATARI_SWITCH_OVSC_SHIFT;
+		}
+
+		if (strcmp(p, "ikbd") == 0) {
+			/* RTS line of IKBD ACIA */
+			atari_switches |= ATARI_SWITCH_IKBD << ovsc_shift;
+		} else if (strcmp(p, "midi") == 0) {
+			/* RTS line of MIDI ACIA */
+			atari_switches |= ATARI_SWITCH_MIDI << ovsc_shift;
+		} else if (strcmp(p, "snd6") == 0) {
+			atari_switches |= ATARI_SWITCH_SND6 << ovsc_shift;
+		} else if (strcmp(p, "snd7") == 0) {
+			atari_switches |= ATARI_SWITCH_SND7 << ovsc_shift;
+		}
+	}
+	return 0;
+}
+
+early_param("switches", atari_switches_setup);
+
+
+    /*
+     *  Setup the Atari configuration info
+     */
+
+void __init config_atari(void)
+{
+	unsigned short tos_version;
+
+	memset(&atari_hw_present, 0, sizeof(atari_hw_present));
+
+	/* Change size of I/O space from 64KB to 4GB. */
+	ioport_resource.end  = 0xFFFFFFFF;
+
+	mach_sched_init      = atari_sched_init;
+	mach_init_IRQ        = atari_init_IRQ;
+	mach_get_model	 = atari_get_model;
+	mach_get_hardware_list = atari_get_hardware_list;
+	mach_reset           = atari_reset;
+#if IS_ENABLED(CONFIG_INPUT_M68K_BEEP)
+	mach_beep          = atari_mksound;
+#endif
+#ifdef CONFIG_HEARTBEAT
+	mach_heartbeat = atari_heartbeat;
+#endif
+
+	/* Set switches as requested by the user */
+	if (atari_switches & ATARI_SWITCH_IKBD)
+		acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID;
+	if (atari_switches & ATARI_SWITCH_MIDI)
+		acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID;
+	if (atari_switches & (ATARI_SWITCH_SND6|ATARI_SWITCH_SND7)) {
+		sound_ym.rd_data_reg_sel = 14;
+		sound_ym.wd_data = sound_ym.rd_data_reg_sel |
+				   ((atari_switches&ATARI_SWITCH_SND6) ? 0x40 : 0) |
+				   ((atari_switches&ATARI_SWITCH_SND7) ? 0x80 : 0);
+	}
+
+	/* ++bjoern:
+	 * Determine hardware present
+	 */
+
+	pr_info("Atari hardware found:");
+	if (MACH_IS_MEDUSA) {
+		/* There's no Atari video hardware on the Medusa, but all the
+		 * addresses below generate a DTACK so no bus error occurs! */
+	} else if (hwreg_present(f030_xreg)) {
+		ATARIHW_SET(VIDEL_SHIFTER);
+		pr_cont(" VIDEL");
+		/* This is a temporary hack: If there is Falcon video
+		 * hardware, we assume that the ST-DMA serves SCSI instead of
+		 * ACSI. In the future, there should be a better method for
+		 * this...
+		 */
+		ATARIHW_SET(ST_SCSI);
+		pr_cont(" STDMA-SCSI");
+	} else if (hwreg_present(tt_palette)) {
+		ATARIHW_SET(TT_SHIFTER);
+		pr_cont(" TT_SHIFTER");
+	} else if (hwreg_present(&shifter_st.bas_hi)) {
+		if (hwreg_present(&shifter_st.bas_lo) &&
+		    (shifter_st.bas_lo = 0x0aau, shifter_st.bas_lo == 0x0aau)) {
+			ATARIHW_SET(EXTD_SHIFTER);
+			pr_cont(" EXTD_SHIFTER");
+		} else {
+			ATARIHW_SET(STND_SHIFTER);
+			pr_cont(" STND_SHIFTER");
+		}
+	}
+	if (hwreg_present(&st_mfp.par_dt_reg)) {
+		ATARIHW_SET(ST_MFP);
+		pr_cont(" ST_MFP");
+	}
+	if (hwreg_present(&tt_mfp.par_dt_reg)) {
+		ATARIHW_SET(TT_MFP);
+		pr_cont(" TT_MFP");
+	}
+	if (hwreg_present(&tt_scsi_dma.dma_addr_hi)) {
+		ATARIHW_SET(SCSI_DMA);
+		pr_cont(" TT_SCSI_DMA");
+	}
+	/*
+	 * The ST-DMA address registers aren't readable
+	 * on all Medusas, so the test below may fail
+	 */
+	if (MACH_IS_MEDUSA ||
+	    (hwreg_present(&st_dma.dma_vhi) &&
+	     (st_dma.dma_vhi = 0x55) && (st_dma.dma_hi = 0xaa) &&
+	     st_dma.dma_vhi == 0x55 && st_dma.dma_hi == 0xaa &&
+	     (st_dma.dma_vhi = 0xaa) && (st_dma.dma_hi = 0x55) &&
+	     st_dma.dma_vhi == 0xaa && st_dma.dma_hi == 0x55)) {
+		ATARIHW_SET(EXTD_DMA);
+		pr_cont(" EXTD_DMA");
+	}
+	if (hwreg_present(&tt_scsi.scsi_data)) {
+		ATARIHW_SET(TT_SCSI);
+		pr_cont(" TT_SCSI");
+	}
+	if (hwreg_present(&sound_ym.rd_data_reg_sel)) {
+		ATARIHW_SET(YM_2149);
+		pr_cont(" YM2149");
+	}
+	if (!MACH_IS_MEDUSA && hwreg_present(&tt_dmasnd.ctrl)) {
+		ATARIHW_SET(PCM_8BIT);
+		pr_cont(" PCM");
+	}
+	if (hwreg_present(&falcon_codec.unused5)) {
+		ATARIHW_SET(CODEC);
+		pr_cont(" CODEC");
+	}
+	if (hwreg_present(&dsp56k_host_interface.icr)) {
+		ATARIHW_SET(DSP56K);
+		pr_cont(" DSP56K");
+	}
+	if (hwreg_present(&tt_scc_dma.dma_ctrl) &&
+#if 0
+	    /* This test sucks! Who knows some better? */
+	    (tt_scc_dma.dma_ctrl = 0x01, (tt_scc_dma.dma_ctrl & 1) == 1) &&
+	    (tt_scc_dma.dma_ctrl = 0x00, (tt_scc_dma.dma_ctrl & 1) == 0)
+#else
+	    !MACH_IS_MEDUSA
+#endif
+	    ) {
+		ATARIHW_SET(SCC_DMA);
+		pr_cont(" SCC_DMA");
+	}
+	if (scc_test(&atari_scc.cha_a_ctrl)) {
+		ATARIHW_SET(SCC);
+		pr_cont(" SCC");
+	}
+	if (scc_test(&st_escc.cha_b_ctrl)) {
+		ATARIHW_SET(ST_ESCC);
+		pr_cont(" ST_ESCC");
+	}
+	if (hwreg_present(&tt_scu.sys_mask)) {
+		ATARIHW_SET(SCU);
+		/* Assume a VME bus if there's a SCU */
+		ATARIHW_SET(VME);
+		pr_cont(" VME SCU");
+	}
+	if (hwreg_present((void *)(0xffff9210))) {
+		ATARIHW_SET(ANALOG_JOY);
+		pr_cont(" ANALOG_JOY");
+	}
+	if (hwreg_present(blitter.halftone)) {
+		ATARIHW_SET(BLITTER);
+		pr_cont(" BLITTER");
+	}
+	if (hwreg_present((void *)0xfff00039)) {
+		ATARIHW_SET(IDE);
+		pr_cont(" IDE");
+	}
+#if 1 /* This maybe wrong */
+	if (!MACH_IS_MEDUSA && hwreg_present(&tt_microwire.data) &&
+	    hwreg_present(&tt_microwire.mask) &&
+	    (tt_microwire.mask = 0x7ff,
+	     udelay(1),
+	     tt_microwire.data = MW_LM1992_PSG_HIGH | MW_LM1992_ADDR,
+	     udelay(1),
+	     tt_microwire.data != 0)) {
+		ATARIHW_SET(MICROWIRE);
+		while (tt_microwire.mask != 0x7ff)
+			;
+		pr_cont(" MICROWIRE");
+	}
+#endif
+	if (hwreg_present(&tt_rtc.regsel)) {
+		ATARIHW_SET(TT_CLK);
+		pr_cont(" TT_CLK");
+		mach_hwclk = atari_tt_hwclk;
+	}
+	if (hwreg_present(&mste_rtc.sec_ones)) {
+		ATARIHW_SET(MSTE_CLK);
+		pr_cont(" MSTE_CLK");
+		mach_hwclk = atari_mste_hwclk;
+	}
+	if (!MACH_IS_MEDUSA && hwreg_present(&dma_wd.fdc_speed) &&
+	    hwreg_write(&dma_wd.fdc_speed, 0)) {
+		ATARIHW_SET(FDCSPEED);
+		pr_cont(" FDC_SPEED");
+	}
+	if (!ATARIHW_PRESENT(ST_SCSI)) {
+		ATARIHW_SET(ACSI);
+		pr_cont(" ACSI");
+	}
+	pr_cont("\n");
+
+	if (CPU_IS_040_OR_060)
+		/* Now it seems to be safe to turn of the tt0 transparent
+		 * translation (the one that must not be turned off in
+		 * head.S...)
+		 */
+		asm volatile ("\n"
+			"	moveq	#0,%%d0\n"
+			"	.chip	68040\n"
+			"	movec	%%d0,%%itt0\n"
+			"	movec	%%d0,%%dtt0\n"
+			"	.chip	68k"
+			: /* no outputs */
+			: /* no inputs */
+			: "d0");
+
+	/* allocator for memory that must reside in st-ram */
+	atari_stram_init();
+
+	/* Set up a mapping for the VMEbus address region:
+	 *
+	 * VME is either at phys. 0xfexxxxxx (TT) or 0xa00000..0xdfffff
+	 * (MegaSTE) In both cases, the whole 16 MB chunk is mapped at
+	 * 0xfe000000 virt., because this can be done with a single
+	 * transparent translation. On the 68040, lots of often unused
+	 * page tables would be needed otherwise. On a MegaSTE or similar,
+	 * the highest byte is stripped off by hardware due to the 24 bit
+	 * design of the bus.
+	 */
+
+	if (CPU_IS_020_OR_030) {
+		unsigned long tt1_val;
+		tt1_val = 0xfe008543;	/* Translate 0xfexxxxxx, enable, cache
+					 * inhibit, read and write, FDC mask = 3,
+					 * FDC val = 4 -> Supervisor only */
+		asm volatile ("\n"
+			"	.chip	68030\n"
+			"	pmove	%0,%/tt1\n"
+			"	.chip	68k"
+			: : "m" (tt1_val));
+	} else {
+	        asm volatile ("\n"
+			"	.chip	68040\n"
+			"	movec	%0,%%itt1\n"
+			"	movec	%0,%%dtt1\n"
+			"	.chip	68k"
+			:
+			: "d" (0xfe00a040));	/* Translate 0xfexxxxxx, enable,
+						 * supervisor only, non-cacheable/
+						 * serialized, writable */
+
+	}
+
+	/* Fetch tos version at Physical 2 */
+	/*
+	 * We my not be able to access this address if the kernel is
+	 * loaded to st ram, since the first page is unmapped.  On the
+	 * Medusa this is always the case and there is nothing we can do
+	 * about this, so we just assume the smaller offset.  For the TT
+	 * we use the fact that in head.S we have set up a mapping
+	 * 0xFFxxxxxx -> 0x00xxxxxx, so that the first 16MB is accessible
+	 * in the last 16MB of the address space.
+	 */
+	tos_version = (MACH_IS_MEDUSA) ?
+			0xfff : *(unsigned short *)0xff000002;
+	atari_rtc_year_offset = (tos_version < 0x306) ? 70 : 68;
+}
+
+#ifdef CONFIG_HEARTBEAT
+static void atari_heartbeat(int on)
+{
+	unsigned char tmp;
+	unsigned long flags;
+
+	if (atari_dont_touch_floppy_select)
+		return;
+
+	local_irq_save(flags);
+	sound_ym.rd_data_reg_sel = 14;	/* Select PSG Port A */
+	tmp = sound_ym.rd_data_reg_sel;
+	sound_ym.wd_data = on ? (tmp & ~0x02) : (tmp | 0x02);
+	local_irq_restore(flags);
+}
+#endif
+
+/* ++roman:
+ *
+ * This function does a reset on machines that lack the ability to
+ * assert the processor's _RESET signal somehow via hardware. It is
+ * based on the fact that you can find the initial SP and PC values
+ * after a reset at physical addresses 0 and 4. This works pretty well
+ * for Atari machines, since the lowest 8 bytes of physical memory are
+ * really ROM (mapped by hardware). For other 680x0 machines: don't
+ * know if it works...
+ *
+ * To get the values at addresses 0 and 4, the MMU better is turned
+ * off first. After that, we have to jump into physical address space
+ * (the PC before the pmove statement points to the virtual address of
+ * the code). Getting that physical address is not hard, but the code
+ * becomes a bit complex since I've tried to ensure that the jump
+ * statement after the pmove is in the cache already (otherwise the
+ * processor can't fetch it!). For that, the code first jumps to the
+ * jump statement with the (virtual) address of the pmove section in
+ * an address register . The jump statement is surely in the cache
+ * now. After that, that physical address of the reset code is loaded
+ * into the same address register, pmove is done and the same jump
+ * statements goes to the reset code. Since there are not many
+ * statements between the two jumps, I hope it stays in the cache.
+ *
+ * The C code makes heavy use of the GCC features that you can get the
+ * address of a C label. No hope to compile this with another compiler
+ * than GCC!
+ */
+
+/* ++andreas: no need for complicated code, just depend on prefetch */
+
+static void atari_reset(void)
+{
+	long tc_val = 0;
+	long reset_addr;
+
+	/*
+	 * On the Medusa, phys. 0x4 may contain garbage because it's no
+	 * ROM.  See above for explanation why we cannot use PTOV(4).
+	 */
+	reset_addr = MACH_IS_MEDUSA || MACH_IS_AB40 ? 0xe00030 :
+		     *(unsigned long *) 0xff000004;
+
+	/* reset ACIA for switch off OverScan, if it's active */
+	if (atari_switches & ATARI_SWITCH_OVSC_IKBD)
+		acia.key_ctrl = ACIA_RESET;
+	if (atari_switches & ATARI_SWITCH_OVSC_MIDI)
+		acia.mid_ctrl = ACIA_RESET;
+
+	/* processor independent: turn off interrupts and reset the VBR;
+	 * the caches must be left enabled, else prefetching the final jump
+	 * instruction doesn't work.
+	 */
+	local_irq_disable();
+	asm volatile ("movec	%0,%%vbr"
+			: : "d" (0));
+
+	if (CPU_IS_040_OR_060) {
+		unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040);
+		if (CPU_IS_060) {
+			/* 68060: clear PCR to turn off superscalar operation */
+			asm volatile ("\n"
+				"	.chip 68060\n"
+				"	movec %0,%%pcr\n"
+				"	.chip 68k"
+				: : "d" (0));
+		}
+
+		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@"
+			: : "a" (jmp_addr040)
+			: "d0");
+	jmp_addr_label040:
+		asm volatile ("\n"
+			"	moveq	#0,%%d0\n"
+			"	nop\n"
+			"	.chip	68040\n"
+			"	cinva	%%bc\n"
+			"	nop\n"
+			"	pflusha\n"
+			"	nop\n"
+			"	movec	%%d0,%%tc\n"
+			"	nop\n"
+			/* the following setup of transparent translations is needed on the
+			 * Afterburner040 to successfully reboot. Other machines shouldn't
+			 * care about a different tt regs setup, they also didn't care in
+			 * the past that the regs weren't turned off. */
+			"	move.l	#0xffc000,%%d0\n" /* whole insn space cacheable */
+			"	movec	%%d0,%%itt0\n"
+			"	movec	%%d0,%%itt1\n"
+			"	or.w	#0x40,%/d0\n" /* whole data space non-cacheable/ser. */
+			"	movec	%%d0,%%dtt0\n"
+			"	movec	%%d0,%%dtt1\n"
+			"	.chip	68k\n"
+			"	jmp	%0@"
+			: /* no outputs */
+			: "a" (reset_addr)
+			: "d0");
+	} else
+		asm volatile ("\n"
+			"	pmove	%0,%%tc\n"
+			"	jmp	%1@"
+			: /* no outputs */
+			: "m" (tc_val), "a" (reset_addr));
+}
+
+
+static void atari_get_model(char *model)
+{
+	strcpy(model, "Atari ");
+	switch (atari_mch_cookie >> 16) {
+	case ATARI_MCH_ST:
+		if (ATARIHW_PRESENT(MSTE_CLK))
+			strcat(model, "Mega ST");
+		else
+			strcat(model, "ST");
+		break;
+	case ATARI_MCH_STE:
+		if (MACH_IS_MSTE)
+			strcat(model, "Mega STE");
+		else
+			strcat(model, "STE");
+		break;
+	case ATARI_MCH_TT:
+		if (MACH_IS_MEDUSA)
+			/* Medusa has TT _MCH cookie */
+			strcat(model, "Medusa");
+		else
+			strcat(model, "TT");
+		break;
+	case ATARI_MCH_FALCON:
+		strcat(model, "Falcon");
+		if (MACH_IS_AB40)
+			strcat(model, " (with Afterburner040)");
+		break;
+	default:
+		sprintf(model + strlen(model), "(unknown mach cookie 0x%lx)",
+			atari_mch_cookie);
+		break;
+	}
+}
+
+
+static void atari_get_hardware_list(struct seq_file *m)
+{
+	int i;
+
+	for (i = 0; i < m68k_num_memory; i++)
+		seq_printf(m, "\t%3ld MB at 0x%08lx (%s)\n",
+				m68k_memory[i].size >> 20, m68k_memory[i].addr,
+				(m68k_memory[i].addr & 0xff000000 ?
+				 "alternate RAM" : "ST-RAM"));
+
+#define ATARIHW_ANNOUNCE(name, str)			\
+	if (ATARIHW_PRESENT(name))			\
+		seq_printf(m, "\t%s\n", str)
+
+	seq_puts(m, "Detected hardware:\n");
+	ATARIHW_ANNOUNCE(STND_SHIFTER, "ST Shifter");
+	ATARIHW_ANNOUNCE(EXTD_SHIFTER, "STe Shifter");
+	ATARIHW_ANNOUNCE(TT_SHIFTER, "TT Shifter");
+	ATARIHW_ANNOUNCE(VIDEL_SHIFTER, "Falcon Shifter");
+	ATARIHW_ANNOUNCE(YM_2149, "Programmable Sound Generator");
+	ATARIHW_ANNOUNCE(PCM_8BIT, "PCM 8 Bit Sound");
+	ATARIHW_ANNOUNCE(CODEC, "CODEC Sound");
+	ATARIHW_ANNOUNCE(TT_SCSI, "SCSI Controller NCR5380 (TT style)");
+	ATARIHW_ANNOUNCE(ST_SCSI, "SCSI Controller NCR5380 (Falcon style)");
+	ATARIHW_ANNOUNCE(ACSI, "ACSI Interface");
+	ATARIHW_ANNOUNCE(IDE, "IDE Interface");
+	ATARIHW_ANNOUNCE(FDCSPEED, "8/16 Mhz Switch for FDC");
+	ATARIHW_ANNOUNCE(ST_MFP, "Multi Function Peripheral MFP 68901");
+	ATARIHW_ANNOUNCE(TT_MFP, "Second Multi Function Peripheral MFP 68901");
+	ATARIHW_ANNOUNCE(SCC, "Serial Communications Controller SCC 8530");
+	ATARIHW_ANNOUNCE(ST_ESCC, "Extended Serial Communications Controller SCC 85230");
+	ATARIHW_ANNOUNCE(ANALOG_JOY, "Paddle Interface");
+	ATARIHW_ANNOUNCE(MICROWIRE, "MICROWIRE(tm) Interface");
+	ATARIHW_ANNOUNCE(STND_DMA, "DMA Controller (24 bit)");
+	ATARIHW_ANNOUNCE(EXTD_DMA, "DMA Controller (32 bit)");
+	ATARIHW_ANNOUNCE(SCSI_DMA, "DMA Controller for NCR5380");
+	ATARIHW_ANNOUNCE(SCC_DMA, "DMA Controller for SCC");
+	ATARIHW_ANNOUNCE(TT_CLK, "Clock Chip MC146818A");
+	ATARIHW_ANNOUNCE(MSTE_CLK, "Clock Chip RP5C15");
+	ATARIHW_ANNOUNCE(SCU, "System Control Unit");
+	ATARIHW_ANNOUNCE(BLITTER, "Blitter");
+	ATARIHW_ANNOUNCE(VME, "VME Bus");
+	ATARIHW_ANNOUNCE(DSP56K, "DSP56001 processor");
+}
+
+/*
+ * MSch: initial platform device support for Atari,
+ * required for EtherNAT/EtherNEC/NetUSBee drivers
+ */
+
+#if defined(CONFIG_ATARI_ETHERNAT) || defined(CONFIG_ATARI_ETHERNEC)
+static void isp1160_delay(struct device *dev, int delay)
+{
+	ndelay(delay);
+}
+#endif
+
+#ifdef CONFIG_ATARI_ETHERNAT
+/*
+ * EtherNAT: SMC91C111 Ethernet chipset, handled by smc91x driver
+ */
+
+#define ATARI_ETHERNAT_IRQ		140
+
+static struct resource smc91x_resources[] = {
+	[0] = {
+		.name	= "smc91x-regs",
+		.start	= ATARI_ETHERNAT_PHYS_ADDR,
+		.end	= ATARI_ETHERNAT_PHYS_ADDR + 0xfffff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.name	= "smc91x-irq",
+		.start	= ATARI_ETHERNAT_IRQ,
+		.end	= ATARI_ETHERNAT_IRQ,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device smc91x_device = {
+	.name		= "smc91x",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(smc91x_resources),
+	.resource	= smc91x_resources,
+};
+
+/*
+ * ISP 1160 - using the isp116x-hcd module
+ */
+
+#define ATARI_USB_PHYS_ADDR	0x80000012
+#define ATARI_USB_IRQ		139
+
+static struct resource isp1160_resources[] = {
+	[0] = {
+		.name	= "isp1160-data",
+		.start	= ATARI_USB_PHYS_ADDR,
+		.end	= ATARI_USB_PHYS_ADDR + 0x1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.name	= "isp1160-regs",
+		.start	= ATARI_USB_PHYS_ADDR + 0x4,
+		.end	= ATARI_USB_PHYS_ADDR + 0x5,
+		.flags	= IORESOURCE_MEM,
+	},
+	[2] = {
+		.name	= "isp1160-irq",
+		.start	= ATARI_USB_IRQ,
+		.end	= ATARI_USB_IRQ,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+/* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */
+static struct isp116x_platform_data isp1160_platform_data = {
+	/* Enable internal resistors on downstream ports */
+	.sel15Kres		= 1,
+	/* On-chip overcurrent protection */
+	.oc_enable		= 1,
+	/* INT output polarity */
+	.int_act_high		= 1,
+	/* INT edge or level triggered */
+	.int_edge_triggered	= 0,
+
+	/* WAKEUP pin connected - NOT SUPPORTED  */
+	/* .remote_wakeup_connected = 0, */
+	/* Wakeup by devices on usb bus enabled */
+	.remote_wakeup_enable	= 0,
+	.delay			= isp1160_delay,
+};
+
+static struct platform_device isp1160_device = {
+	.name		= "isp116x-hcd",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(isp1160_resources),
+	.resource	= isp1160_resources,
+	.dev			= {
+		.platform_data	= &isp1160_platform_data,
+	},
+};
+
+static struct platform_device *atari_ethernat_devices[] __initdata = {
+	&smc91x_device,
+	&isp1160_device
+};
+#endif /* CONFIG_ATARI_ETHERNAT */
+
+#ifdef CONFIG_ATARI_ETHERNEC
+/*
+ * EtherNEC: RTL8019 (NE2000 compatible) Ethernet chipset,
+ * handled by ne.c driver
+ */
+
+#define ATARI_ETHERNEC_PHYS_ADDR	0xfffa0000
+#define ATARI_ETHERNEC_BASE		0x300
+#define ATARI_ETHERNEC_IRQ		IRQ_MFP_TIMER1
+
+static struct resource rtl8019_resources[] = {
+	[0] = {
+		.name	= "rtl8019-regs",
+		.start	= ATARI_ETHERNEC_BASE,
+		.end	= ATARI_ETHERNEC_BASE + 0x20 - 1,
+		.flags	= IORESOURCE_IO,
+	},
+	[1] = {
+		.name	= "rtl8019-irq",
+		.start	= ATARI_ETHERNEC_IRQ,
+		.end	= ATARI_ETHERNEC_IRQ,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device rtl8019_device = {
+	.name		= "ne",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(rtl8019_resources),
+	.resource	= rtl8019_resources,
+};
+
+/*
+ * NetUSBee: ISP1160 USB host adapter via ROM-port adapter
+ */
+
+#define ATARI_NETUSBEE_PHYS_ADDR	0xfffa8000
+#define ATARI_NETUSBEE_BASE		0x340
+#define ATARI_NETUSBEE_IRQ		IRQ_MFP_TIMER2
+
+static struct resource netusbee_resources[] = {
+	[0] = {
+		.name	= "isp1160-data",
+		.start	= ATARI_NETUSBEE_BASE,
+		.end	= ATARI_NETUSBEE_BASE + 0x1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.name	= "isp1160-regs",
+		.start	= ATARI_NETUSBEE_BASE + 0x20,
+		.end	= ATARI_NETUSBEE_BASE + 0x21,
+		.flags	= IORESOURCE_MEM,
+	},
+	[2] = {
+		.name	= "isp1160-irq",
+		.start	= ATARI_NETUSBEE_IRQ,
+		.end	= ATARI_NETUSBEE_IRQ,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+/* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */
+static struct isp116x_platform_data netusbee_platform_data = {
+	/* Enable internal resistors on downstream ports */
+	.sel15Kres		= 1,
+	/* On-chip overcurrent protection */
+	.oc_enable		= 1,
+	/* INT output polarity */
+	.int_act_high		= 1,
+	/* INT edge or level triggered */
+	.int_edge_triggered	= 0,
+
+	/* WAKEUP pin connected - NOT SUPPORTED  */
+	/* .remote_wakeup_connected = 0, */
+	/* Wakeup by devices on usb bus enabled */
+	.remote_wakeup_enable	= 0,
+	.delay			= isp1160_delay,
+};
+
+static struct platform_device netusbee_device = {
+	.name		= "isp116x-hcd",
+	.id		= 1,
+	.num_resources	= ARRAY_SIZE(netusbee_resources),
+	.resource	= netusbee_resources,
+	.dev			= {
+		.platform_data	= &netusbee_platform_data,
+	},
+};
+
+static struct platform_device *atari_netusbee_devices[] __initdata = {
+	&rtl8019_device,
+	&netusbee_device
+};
+#endif /* CONFIG_ATARI_ETHERNEC */
+
+#if IS_ENABLED(CONFIG_ATARI_SCSI)
+static const struct resource atari_scsi_st_rsrc[] __initconst = {
+	{
+		.flags = IORESOURCE_IRQ,
+		.start = IRQ_MFP_FSCSI,
+		.end   = IRQ_MFP_FSCSI,
+	},
+};
+
+static const struct resource atari_scsi_tt_rsrc[] __initconst = {
+	{
+		.flags = IORESOURCE_IRQ,
+		.start = IRQ_TT_MFP_SCSI,
+		.end   = IRQ_TT_MFP_SCSI,
+	},
+};
+#endif
+
+/*
+ * Falcon IDE interface
+ */
+
+#define FALCON_IDE_BASE	0xfff00000
+
+static const struct resource atari_falconide_rsrc[] __initconst = {
+	DEFINE_RES_MEM(FALCON_IDE_BASE, 0x38),
+	DEFINE_RES_MEM(FALCON_IDE_BASE + 0x38, 2),
+};
+
+int __init atari_platform_init(void)
+{
+	struct platform_device *pdev;
+	int rv = 0;
+
+	if (!MACH_IS_ATARI)
+		return -ENODEV;
+
+#ifdef CONFIG_ATARI_ETHERNAT
+	{
+		unsigned char *enatc_virt;
+		enatc_virt = (unsigned char *)ioremap((ATARI_ETHERNAT_PHYS_ADDR+0x23), 0xf);
+		if (hwreg_present(enatc_virt)) {
+			rv = platform_add_devices(atari_ethernat_devices,
+						ARRAY_SIZE(atari_ethernat_devices));
+		}
+		iounmap(enatc_virt);
+	}
+#endif
+
+#ifdef CONFIG_ATARI_ETHERNEC
+	{
+		int error;
+		unsigned char *enec_virt;
+		enec_virt = (unsigned char *)ioremap((ATARI_ETHERNEC_PHYS_ADDR), 0xf);
+		if (hwreg_present(enec_virt)) {
+			error = platform_add_devices(atari_netusbee_devices,
+						ARRAY_SIZE(atari_netusbee_devices));
+			if (error && !rv)
+				rv = error;
+		}
+		iounmap(enec_virt);
+	}
+#endif
+
+#if IS_ENABLED(CONFIG_ATARI_SCSI)
+	if (ATARIHW_PRESENT(ST_SCSI))
+		platform_device_register_simple("atari_scsi", -1,
+			atari_scsi_st_rsrc, ARRAY_SIZE(atari_scsi_st_rsrc));
+	else if (ATARIHW_PRESENT(TT_SCSI))
+		platform_device_register_simple("atari_scsi", -1,
+			atari_scsi_tt_rsrc, ARRAY_SIZE(atari_scsi_tt_rsrc));
+#endif
+
+	if (ATARIHW_PRESENT(IDE)) {
+		pdev = platform_device_register_simple("atari-falcon-ide", -1,
+			atari_falconide_rsrc, ARRAY_SIZE(atari_falconide_rsrc));
+		if (IS_ERR(pdev))
+			rv = PTR_ERR(pdev);
+	}
+
+	return rv;
+}
+
+arch_initcall(atari_platform_init);