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ubuntu-linux-kernel/arch/m68k/atari/config.c

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/*
* 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>
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(irq_handler_t);
extern u32 atari_gettimeoffset(void);
extern int atari_mste_hwclk (int, struct rtc_time *);
extern int atari_tt_hwclk (int, struct rtc_time *);
extern int atari_mste_set_clock_mmss (unsigned long);
extern int atari_tt_set_clock_mmss (unsigned long);
/* ++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[strlen(str) + 1];
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;
arch_gettimeoffset = atari_gettimeoffset;
mach_reset = atari_reset;
mach_max_dma_address = 0xffffff;
#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.bas_hi)) {
if (hwreg_present(&shifter.bas_lo) &&
(shifter.bas_lo = 0x0aau, shifter.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;
mach_set_clock_mmss = atari_tt_set_clock_mmss;
}
if (hwreg_present(&mste_rtc.sec_ones)) {
ATARIHW_SET(MSTE_CLK);
pr_cont(" MSTE_CLK");
mach_hwclk = atari_mste_hwclk;
mach_set_clock_mmss = atari_mste_set_clock_mmss;
}
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
int __init atari_platform_init(void)
{
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
return rv;
}
arch_initcall(atari_platform_init);
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