patch-2.4.21 linux-2.4.21/arch/ppc/platforms/prep_setup.c
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- Lines: 1093
- Date:
2003-06-13 07:51:31.000000000 -0700
- Orig file:
linux-2.4.20/arch/ppc/platforms/prep_setup.c
- Orig date:
2002-11-28 15:53:11.000000000 -0800
diff -urN linux-2.4.20/arch/ppc/platforms/prep_setup.c linux-2.4.21/arch/ppc/platforms/prep_setup.c
@@ -1,8 +1,5 @@
/*
- * BK Id: %F% %I% %G% %U% %#%
- */
-/*
- * linux/arch/ppc/kernel/setup.c
+ * arch/ppc/platforms/setup.c
*
* Copyright (C) 1995 Linus Torvalds
* Adapted from 'alpha' version by Gary Thomas
@@ -59,11 +56,8 @@
#include <asm/time.h>
#include <asm/i8259.h>
#include <asm/open_pic.h>
-
-#if defined(CONFIG_SOUND) || defined(CONFIG_SOUND_MODULE)
-#include <../drivers/sound/sound_config.h>
-#include <../drivers/sound/dev_table.h>
-#endif
+#include <asm/pci-bridge.h>
+#include <asm/bootinfo.h>
unsigned char ucSystemType;
unsigned char ucBoardRev;
@@ -96,60 +90,335 @@
int _prep_type;
+extern void prep_sandalfoot_setup_pci(char *irq_edge_mask_lo, char *irq_edge_mask_hi);
+extern void prep_thinkpad_setup_pci(char *irq_edge_mask_lo, char *irq_edge_mask_hi);
+extern void prep_carolina_setup_pci(char *irq_edge_mask_lo, char *irq_edge_mask_hi);
+extern void prep_tiger1_setup_pci(char *irq_edge_mask_lo, char *irq_edge_mask_hi);
+
+
#define cached_21 (((char *)(ppc_cached_irq_mask))[3])
#define cached_A1 (((char *)(ppc_cached_irq_mask))[2])
/* for the mac fs */
kdev_t boot_dev;
-/* used in nasty hack for sound - see prep_setup_arch() -- Cort */
+
+#ifdef CONFIG_SOUND_CS4232
long ppc_cs4232_dma, ppc_cs4232_dma2;
+#endif
extern PTE *Hash, *Hash_end;
extern unsigned long Hash_size, Hash_mask;
extern int probingmem;
extern unsigned long loops_per_jiffy;
-#ifdef CONFIG_SOUND_MODULE
+#ifdef CONFIG_SOUND_CS4232
EXPORT_SYMBOL(ppc_cs4232_dma);
EXPORT_SYMBOL(ppc_cs4232_dma2);
#endif
-static int __prep
-prep_show_cpuinfo(struct seq_file *m)
+/* useful ISA ports */
+#define PREP_SYSCTL 0x81c
+/* present in the IBM reference design; possibly identical in Mot boxes: */
+#define PREP_IBM_SIMM_ID 0x803 /* SIMM size: 32 or 8 MiB */
+#define PREP_IBM_SIMM_PRESENCE 0x804
+#define PREP_IBM_EQUIPMENT 0x80c
+#define PREP_IBM_L2INFO 0x80d
+#define PREP_IBM_PM1 0x82a /* power management register 1 */
+#define PREP_IBM_PLANAR 0x852 /* planar ID - identifies the motherboard */
+
+/* Equipment Present Register masks: */
+#define PREP_IBM_EQUIPMENT_RESERVED 0x80
+#define PREP_IBM_EQUIPMENT_SCSIFUSE 0x40
+#define PREP_IBM_EQUIPMENT_L2_COPYBACK 0x08
+#define PREP_IBM_EQUIPMENT_L2_256 0x04
+#define PREP_IBM_EQUIPMENT_CPU 0x02
+#define PREP_IBM_EQUIPMENT_L2 0x01
+
+/* planar ID values: */
+/* Sandalfoot/Sandalbow (6015/7020) */
+#define PREP_IBM_SANDALFOOT 0xfc
+/* Woodfield, Thinkpad 850/860 (6042/7249) */
+#define PREP_IBM_THINKPAD 0xff /* planar ID unimplemented */
+/* PowerSeries 830/850 (6050/6070) */
+#define PREP_IBM_CAROLINA_IDE_0 0xf0
+#define PREP_IBM_CAROLINA_IDE_1 0xf1
+#define PREP_IBM_CAROLINA_IDE_2 0xf2
+/* 7248-43P */
+#define PREP_IBM_CAROLINA_SCSI_0 0xf4
+#define PREP_IBM_CAROLINA_SCSI_1 0xf5
+#define PREP_IBM_CAROLINA_SCSI_2 0xf6
+#define PREP_IBM_CAROLINA_SCSI_3 0xf7 /* missing from Carolina Tech Spec */
+/* Tiger1 (7043-140) */
+#define PREP_IBM_TIGER1_133 0xd1
+#define PREP_IBM_TIGER1_166 0xd2
+#define PREP_IBM_TIGER1_180 0xd3
+#define PREP_IBM_TIGER1_xxx 0xd4 /* unknown, but probably exists */
+#define PREP_IBM_TIGER1_333 0xd5 /* missing from Tiger Tech Spec */
+
+/* setup_ibm_pci:
+ * set Motherboard_map_name, Motherboard_map, Motherboard_routes.
+ * return 8259 edge/level masks.
+ */
+void (*setup_ibm_pci)(char *irq_lo, char *irq_hi);
+
+extern char *Motherboard_map_name; /* for use in *_cpuinfo */
+
+/*
+ * As found in the PReP reference implementation.
+ * Used by Thinkpad, Sandalfoot (6015/7020), and all Motorola PReP.
+ */
+static void __init
+prep_gen_enable_l2(void)
+{
+ outb(inb(PREP_SYSCTL) | 0x3, PREP_SYSCTL);
+}
+
+/* Used by Carolina and Tiger1 */
+static void __init
+prep_carolina_enable_l2(void)
+{
+ outb(inb(PREP_SYSCTL) | 0xc0, PREP_SYSCTL);
+}
+
+/* cpuinfo code common to all IBM PReP */
+static void __prep
+prep_ibm_cpuinfo(struct seq_file *m)
{
- extern char *Motherboard_map_name;
- int cachew;
+ unsigned int equip_reg = inb(PREP_IBM_EQUIPMENT);
+
+ seq_printf(m, "machine\t\t: PReP %s\n", Motherboard_map_name);
+
+ seq_printf(m, "upgrade cpu\t: ");
+ if (equip_reg & PREP_IBM_EQUIPMENT_CPU) {
+ seq_printf(m, "not ");
+ }
+ seq_printf(m, "present\n");
+
+ /* print info about the SCSI fuse */
+ seq_printf(m, "scsi fuse\t: ");
+ if (equip_reg & PREP_IBM_EQUIPMENT_SCSIFUSE)
+ seq_printf(m, "ok");
+ else
+ seq_printf(m, "bad");
+ seq_printf(m, "\n");
+
#ifdef CONFIG_PREP_RESIDUAL
- int i;
+ /* print info about SIMMs */
+ if (res->ResidualLength != 0) {
+ int i;
+ seq_printf(m, "simms\t\t: ");
+ for (i = 0; (res->ActualNumMemories) && (i < MAX_MEMS); i++) {
+ if (res->Memories[i].SIMMSize != 0)
+ seq_printf(m, "%d:%ldMiB ", i,
+ (res->Memories[i].SIMMSize > 1024) ?
+ res->Memories[i].SIMMSize>>20 :
+ res->Memories[i].SIMMSize);
+ }
+ seq_printf(m, "\n");
+ }
#endif
+}
- seq_printf(m, "machine\t\t: PReP %s\n", Motherboard_map_name);
+static int __prep
+prep_sandalfoot_cpuinfo(struct seq_file *m)
+{
+ unsigned int equip_reg = inb(PREP_IBM_EQUIPMENT);
- switch ( _prep_type ) {
- case _PREP_IBM:
- cachew = inw(0x80c);
- if (cachew & (1<<6))
- seq_printf(m, "Upgrade CPU\n");
- seq_printf(m, "L2\t\t: ");
- if (cachew & (1<<7)) {
- seq_printf(m, "not present\n");
- goto no_l2;
+ prep_ibm_cpuinfo(m);
+
+ /* report amount and type of L2 cache present */
+ seq_printf(m, "L2 cache\t: ");
+ if (equip_reg & PREP_IBM_EQUIPMENT_L2) {
+ seq_printf(m, "not present");
+ } else {
+ if (equip_reg & PREP_IBM_EQUIPMENT_L2_256)
+ seq_printf(m, "256KiB");
+ else
+ seq_printf(m, "unknown size");
+
+ if (equip_reg & PREP_IBM_EQUIPMENT_L2_COPYBACK)
+ seq_printf(m, ", copy-back");
+ else
+ seq_printf(m, ", write-through");
+ }
+ seq_printf(m, "\n");
+
+ return 0;
+}
+
+static int __prep
+prep_thinkpad_cpuinfo(struct seq_file *m)
+{
+ unsigned int equip_reg = inb(PREP_IBM_EQUIPMENT);
+ char *cpubus_speed, *pci_speed;
+
+ prep_ibm_cpuinfo(m);
+
+ /* report amount and type of L2 cache present */
+ seq_printf(m, "l2 cache\t: ");
+ if ((equip_reg & 0x1) == 0) {
+ switch ((equip_reg & 0xc) >> 2) {
+ case 0x0:
+ seq_printf(m, "128KiB look-aside 2-way write-through\n");
+ break;
+ case 0x1:
+ seq_printf(m, "512KiB look-aside direct-mapped write-back\n");
+ break;
+ case 0x2:
+ seq_printf(m, "256KiB look-aside 2-way write-through\n");
+ break;
+ case 0x3:
+ seq_printf(m, "256KiB look-aside direct-mapped write-back\n");
+ break;
}
- seq_printf(m, "%sKb,", (cachew & (1 << 10))? "512" : "256");
- seq_printf(m, "%ssync\n", (cachew & (1 << 15))? "" : "a");
- break;
- case _PREP_Motorola:
- cachew = *((unsigned char *)CACHECRBA);
- seq_printf(m, "L2\t\t: ");
- switch (cachew & L2CACHE_MASK) {
+ } else {
+ seq_printf(m, "not present\n");
+ }
+
+ /* report bus speeds because we can */
+ if ((equip_reg & 0x80) == 0) {
+ switch ((equip_reg & 0x30) >> 4) {
+ case 0x1:
+ cpubus_speed = "50";
+ pci_speed = "25";
+ break;
+ case 0x3:
+ cpubus_speed = "66";
+ pci_speed = "33";
+ break;
+ default:
+ cpubus_speed = "unknown";
+ pci_speed = "unknown";
+ break;
+ }
+ } else {
+ switch ((equip_reg & 0x30) >> 4) {
+ case 0x1:
+ cpubus_speed = "25";
+ pci_speed = "25";
+ break;
+ case 0x2:
+ cpubus_speed = "60";
+ pci_speed = "30";
+ break;
+ case 0x3:
+ cpubus_speed = "33";
+ pci_speed = "33";
+ break;
+ default:
+ cpubus_speed = "unknown";
+ pci_speed = "unknown";
+ break;
+ }
+ }
+ seq_printf(m, "60x bus\t\t: %sMHz\n", cpubus_speed);
+ seq_printf(m, "pci bus\t\t: %sMHz\n", pci_speed);
+
+ return 0;
+}
+
+static int __prep
+prep_carolina_cpuinfo(struct seq_file *m)
+{
+ unsigned int equip_reg = inb(PREP_IBM_EQUIPMENT);
+
+ prep_ibm_cpuinfo(m);
+
+ /* report amount and type of L2 cache present */
+ seq_printf(m, "l2 cache\t: ");
+ if ((equip_reg & 0x1) == 0) {
+ unsigned int l2_reg = inb(PREP_IBM_L2INFO);
+
+ /* L2 size */
+ switch ((l2_reg & 0x60) >> 5) {
+ case 0:
+ seq_printf(m, "256KiB");
+ break;
+ case 1:
+ seq_printf(m, "512KiB");
+ break;
+ default:
+ seq_printf(m, "unknown size");
+ break;
+ }
+
+ /* L2 type */
+ if ((l2_reg & 0x3) == 0)
+ seq_printf(m, ", async");
+ else if ((l2_reg & 0x3) == 1)
+ seq_printf(m, ", sync");
+ else
+ seq_printf(m, ", unknown type");
+
+ seq_printf(m, "\n");
+ } else {
+ seq_printf(m, "not present\n");
+ }
+
+ return 0;
+}
+
+static int __prep
+prep_tiger1_cpuinfo(struct seq_file *m)
+{
+ unsigned int l2_reg = inb(PREP_IBM_L2INFO);
+
+ prep_ibm_cpuinfo(m);
+
+ /* report amount and type of L2 cache present */
+ seq_printf(m, "l2 cache\t: ");
+ if ((l2_reg & 0xf) == 0xf) {
+ seq_printf(m, "not present\n");
+ } else {
+ if (l2_reg & 0x8)
+ seq_printf(m, "async, ");
+ else
+ seq_printf(m, "sync burst, ");
+
+ if (l2_reg & 0x4)
+ seq_printf(m, "parity, ");
+ else
+ seq_printf(m, "no parity, ");
+
+ switch (l2_reg & 0x3) {
+ case 0x0:
+ seq_printf(m, "256KiB\n");
+ break;
+ case 0x1:
+ seq_printf(m, "512KiB\n");
+ break;
+ case 0x2:
+ seq_printf(m, "1MiB\n");
+ break;
+ default:
+ seq_printf(m, "unknown size\n");
+ break;
+ }
+ }
+
+ return 0;
+}
+
+
+/* Used by all Motorola PReP */
+static int __prep
+prep_mot_cpuinfo(struct seq_file *m)
+{
+ unsigned int cachew = *((unsigned char *)CACHECRBA);
+
+ seq_printf(m, "machine\t\t: PReP %s\n", Motherboard_map_name);
+
+ /* report amount and type of L2 cache present */
+ seq_printf(m, "l2 cache\t: ");
+ switch (cachew & L2CACHE_MASK) {
case L2CACHE_512KB:
- seq_printf(m, "512Kb");
+ seq_printf(m, "512KiB");
break;
case L2CACHE_256KB:
- seq_printf(m, "256Kb");
+ seq_printf(m, "256KiB");
break;
case L2CACHE_1MB:
- seq_printf(m, "1MB");
+ seq_printf(m, "1MiB");
break;
case L2CACHE_NONE:
seq_printf(m, "none\n");
@@ -157,32 +426,29 @@
break;
default:
seq_printf(m, "%x\n", cachew);
- }
-
- seq_printf(m, ", parity %s",
- (cachew & L2CACHE_PARITY)? "enabled" : "disabled");
+ }
- seq_printf(m, " SRAM:");
-
- switch ( ((cachew & 0xf0) >> 4) & ~(0x3) ) {
- case 1: seq_printf(m, "synchronous,parity,flow-through\n");
- break;
- case 2: seq_printf(m, "asynchronous,no parity\n");
- break;
- case 3: seq_printf(m, "asynchronous,parity\n");
- break;
- default:seq_printf(m, "synchronous,pipelined,no parity\n");
- break;
- }
- break;
- default:
- break;
+ seq_printf(m, ", parity %s",
+ (cachew & L2CACHE_PARITY)? "enabled" : "disabled");
+
+ seq_printf(m, " SRAM:");
+
+ switch ( ((cachew & 0xf0) >> 4) & ~(0x3) ) {
+ case 1: seq_printf(m, "synchronous, parity, flow-through\n");
+ break;
+ case 2: seq_printf(m, "asynchronous, no parity\n");
+ break;
+ case 3: seq_printf(m, "asynchronous, parity\n");
+ break;
+ default:seq_printf(m, "synchronous, pipelined, no parity\n");
+ break;
}
no_l2:
#ifdef CONFIG_PREP_RESIDUAL
+ /* print info about SIMMs */
if (res->ResidualLength != 0) {
- /* print info about SIMMs */
+ int i;
seq_printf(m, "simms\t\t: ");
for (i = 0; (res->ActualNumMemories) && (i < MAX_MEMS); i++) {
if (res->Memories[i].SIMMSize != 0)
@@ -198,6 +464,107 @@
return 0;
}
+static void __prep
+prep_restart(char *cmd)
+{
+#define PREP_SP92 0x92 /* Special Port 92 */
+ __cli(); /* no interrupts */
+
+ /* set exception prefix high - to the prom */
+ _nmask_and_or_msr(0, MSR_IP);
+
+ /* make sure bit 0 (reset) is a 0 */
+ outb( inb(PREP_SP92) & ~1L , PREP_SP92);
+ /* signal a reset to system control port A - soft reset */
+ outb( inb(PREP_SP92) | 1 , PREP_SP92);
+
+ while ( 1 ) ;
+ /* not reached */
+#undef PREP_SP92
+}
+
+static void __prep
+prep_halt(void)
+{
+ __cli(); /* no interrupts */
+
+ /* set exception prefix high - to the prom */
+ _nmask_and_or_msr(0, MSR_IP);
+
+ while ( 1 ) ;
+ /* not reached */
+}
+
+/* Carrera is the power manager in the Thinkpads. Unfortunately not much is
+ * known about it, so we can't power down.
+ */
+static void __prep
+prep_carrera_poweroff(void)
+{
+ prep_halt();
+}
+
+/*
+ * On most IBM PReP's, power management is handled by a Signetics 87c750
+ * behind the Utah component on the ISA bus. To access the 750 you must write
+ * a series of nibbles to port 0x82a (decoded by the Utah). This is described
+ * somewhat in the IBM Carolina Technical Specification.
+ * -Hollis
+ */
+static void __prep
+utah_sig87c750_setbit(unsigned int bytenum, unsigned int bitnum, int value)
+{
+ /*
+ * byte1: 0 0 0 1 0 d a5 a4
+ * byte2: 0 0 0 1 a3 a2 a1 a0
+ *
+ * d = the bit's value, enabled or disabled
+ * (a5 a4 a3) = the byte number, minus 20
+ * (a2 a1 a0) = the bit number
+ *
+ * example: set the 5th bit of byte 21 (21.5)
+ * a5 a4 a3 = 001 (byte 1)
+ * a2 a1 a0 = 101 (bit 5)
+ *
+ * byte1 = 0001 0100 (0x14)
+ * byte2 = 0001 1101 (0x1d)
+ */
+ unsigned char byte1=0x10, byte2=0x10;
+
+ /* the 750's '20.0' is accessed as '0.0' through Utah (which adds 20) */
+ bytenum -= 20;
+
+ byte1 |= (!!value) << 2; /* set d */
+ byte1 |= (bytenum >> 1) & 0x3; /* set a5, a4 */
+
+ byte2 |= (bytenum & 0x1) << 3; /* set a3 */
+ byte2 |= bitnum & 0x7; /* set a2, a1, a0 */
+
+ outb(byte1, PREP_IBM_PM1); /* first nibble */
+ mb();
+ udelay(100); /* important: let controller recover */
+
+ outb(byte2, PREP_IBM_PM1); /* second nibble */
+ mb();
+ udelay(100); /* important: let controller recover */
+}
+
+static void __prep
+prep_sig750_poweroff(void)
+{
+ /* tweak the power manager found in most IBM PRePs (except Thinkpads) */
+ unsigned long flags;
+ __cli();
+ /* set exception prefix high - to the prom */
+ save_flags( flags );
+ restore_flags( flags|MSR_IP );
+
+ utah_sig87c750_setbit(21, 5, 1); /* set bit 21.5, "PMEXEC_OFF" */
+
+ while (1) ;
+ /* not reached */
+}
+
static int __prep
prep_show_percpuinfo(struct seq_file *m, int i)
{
@@ -216,14 +583,120 @@
return 0;
}
+#ifdef CONFIG_SOUND_CS4232
+static long __init masktoint(unsigned int i)
+{
+ int t = -1;
+ while (i >> ++t)
+ ;
+ return (t-1);
+}
+
+/*
+ * ppc_cs4232_dma and ppc_cs4232_dma2 are used in include/asm/dma.h
+ * to distinguish sound dma-channels from others. This is because
+ * blocksize on 16 bit dma-channels 5,6,7 is 128k, but
+ * the cs4232.c uses 64k like on 8 bit dma-channels 0,1,2,3
+ */
+
+static void __init prep_init_sound(void)
+{
+ PPC_DEVICE *audiodevice = NULL;
+
+ /*
+ * Get the needed resource informations from residual data.
+ *
+ */
+#ifdef CONFIG_PREP_RESIDUAL
+ audiodevice = residual_find_device(~0, NULL, MultimediaController,
+ AudioController, -1, 0);
+ if (audiodevice != NULL) {
+ PnP_TAG_PACKET *pkt;
+
+ pkt = PnP_find_packet((unsigned char *)&res->DevicePnPHeap[audiodevice->AllocatedOffset],
+ S5_Packet, 0);
+ if (pkt != NULL)
+ ppc_cs4232_dma = masktoint(pkt->S5_Pack.DMAMask);
+ pkt = PnP_find_packet((unsigned char*)&res->DevicePnPHeap[audiodevice->AllocatedOffset],
+ S5_Packet, 1);
+ if (pkt != NULL)
+ ppc_cs4232_dma2 = masktoint(pkt->S5_Pack.DMAMask);
+ }
+#endif
+
+ /*
+ * These are the PReP specs' defaults for the cs4231. We use these
+ * as fallback incase we don't have residual data.
+ * At least the IBM Thinkpad 850 with IDE DMA Channels at 6 and 7
+ * will use the other values.
+ */
+ if (audiodevice == NULL) {
+ switch (_prep_type) {
+ case _PREP_IBM:
+ ppc_cs4232_dma = 1;
+ ppc_cs4232_dma2 = -1;
+ break;
+ default:
+ ppc_cs4232_dma = 6;
+ ppc_cs4232_dma2 = 7;
+ }
+ }
+
+ /*
+ * Find a way to push these informations to the cs4232 driver
+ * Give it out with printk, when not in cmd_line?
+ * Append it to cmd_line and saved_command_line?
+ * Format is cs4232=io,irq,dma,dma2
+ */
+}
+#endif /* CONFIG_SOUND_CS4232 */
+
+/*
+ * Fill out screen_info according to the residual data. This allows us to use
+ * at least vesafb.
+ */
+static void __init
+prep_init_vesa(void)
+{
+#if defined(CONFIG_PREP_RESIDUAL) && \
+ (defined(CONFIG_FB_VGA16) || defined(CONFIG_FB_VGA_16_MODULE) || \
+ defined(CONFIG_FB_VESA))
+ PPC_DEVICE *vgadev;
+
+ vgadev = residual_find_device(~0, NULL, DisplayController, SVGAController,
+ -1, 0);
+ if (vgadev != NULL) {
+ PnP_TAG_PACKET *pkt;
+
+ pkt = PnP_find_large_vendor_packet(
+ (unsigned char *)&res->DevicePnPHeap[vgadev->AllocatedOffset],
+ 0x04, 0); /* 0x04 = Display Tag */
+ if (pkt != NULL) {
+ unsigned char *ptr = (unsigned char *)pkt;
+
+ if (ptr[4]) {
+ /* graphics mode */
+ screen_info.orig_video_isVGA = VIDEO_TYPE_VLFB;
+
+ screen_info.lfb_depth = ptr[4] * 8;
+
+ screen_info.lfb_width = swab16(*(short *)(ptr+6));
+ screen_info.lfb_height = swab16(*(short *)(ptr+8));
+ screen_info.lfb_linelength = swab16(*(short *)(ptr+10));
+
+ screen_info.lfb_base = swab32(*(long *)(ptr+12));
+ screen_info.lfb_size = swab32(*(long *)(ptr+20)) / 65536;
+ }
+ }
+ }
+#endif /* CONFIG_PREP_RESIDUAL */
+}
+
static void __init
prep_setup_arch(void)
{
unsigned char reg;
-#if 0 /* unused?? */
- unsigned char ucMothMemType;
- unsigned char ucEquipPres1;
-#endif
+ int is_ide=0;
/* init to some ~sane value until calibrate_delay() runs */
loops_per_jiffy = 50000000;
@@ -238,17 +711,64 @@
outb(reg, SIO_CONFIG_RD);
outb(reg, SIO_CONFIG_RD); /* Have to write twice to change! */
- /* we should determine this according to what we find! -- Cort */
switch ( _prep_type )
{
case _PREP_IBM:
- /* Enable L2. Assume we don't need to flush -- Cort*/
- *(unsigned char *)(0x8000081c) |= 3;
- ROOT_DEV = to_kdev_t(0x0301); /* hda1 */
+ reg = inb(PREP_IBM_PLANAR);
+ printk(KERN_INFO "IBM planar ID: %08x", reg);
+ switch (reg) {
+ case PREP_IBM_SANDALFOOT:
+ prep_gen_enable_l2();
+ setup_ibm_pci = prep_sandalfoot_setup_pci;
+ ppc_md.power_off = prep_sig750_poweroff;
+ ppc_md.show_cpuinfo = prep_sandalfoot_cpuinfo;
+ break;
+ case PREP_IBM_THINKPAD:
+ prep_gen_enable_l2();
+ setup_ibm_pci = prep_thinkpad_setup_pci;
+ ppc_md.power_off = prep_carrera_poweroff;
+ ppc_md.show_cpuinfo = prep_thinkpad_cpuinfo;
+ break;
+ default:
+ printk(" -- unknown! Assuming Carolina");
+ case PREP_IBM_CAROLINA_IDE_0:
+ case PREP_IBM_CAROLINA_IDE_1:
+ case PREP_IBM_CAROLINA_IDE_2:
+ is_ide = 1;
+ case PREP_IBM_CAROLINA_SCSI_0:
+ case PREP_IBM_CAROLINA_SCSI_1:
+ case PREP_IBM_CAROLINA_SCSI_2:
+ case PREP_IBM_CAROLINA_SCSI_3:
+ prep_carolina_enable_l2();
+ setup_ibm_pci = prep_carolina_setup_pci;
+ ppc_md.power_off = prep_sig750_poweroff;
+ ppc_md.show_cpuinfo = prep_carolina_cpuinfo;
+ break;
+ case PREP_IBM_TIGER1_133:
+ case PREP_IBM_TIGER1_166:
+ case PREP_IBM_TIGER1_180:
+ case PREP_IBM_TIGER1_xxx:
+ case PREP_IBM_TIGER1_333:
+ prep_carolina_enable_l2();
+ setup_ibm_pci = prep_tiger1_setup_pci;
+ ppc_md.power_off = prep_sig750_poweroff;
+ ppc_md.show_cpuinfo = prep_tiger1_cpuinfo;
+ break;
+ }
+ printk("\n");
+
+ /* default root device */
+ if (is_ide)
+ ROOT_DEV = to_kdev_t(0x0303); /* hda3 */
+ else
+ ROOT_DEV = to_kdev_t(0x0803); /* sda3 */
+
break;
case _PREP_Motorola:
- /* Enable L2. Assume we don't need to flush -- Cort*/
- *(unsigned char *)(0x8000081c) |= 3;
+ prep_gen_enable_l2();
+ ppc_md.power_off = prep_halt;
+ ppc_md.show_cpuinfo = prep_mot_cpuinfo;
+
#ifdef CONFIG_BLK_DEV_INITRD
if (initrd_start)
ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0); /* /dev/ram */
@@ -276,46 +796,11 @@
}
}
-#ifdef CONFIG_SOUND_CS4232
- /*
- * setup proper values for the cs4232 driver so we don't have
- * to recompile for the motorola or ibm workstations sound systems.
- * This is a really nasty hack, but unless we change the driver
- * it's the only way to support both addrs from one binary.
- * -- Cort
- */
- if ( _machine == _MACH_prep )
- {
- extern struct card_info snd_installed_cards[];
- struct card_info *snd_ptr;
-
- for ( snd_ptr = snd_installed_cards;
- snd_ptr < &snd_installed_cards[num_sound_cards];
- snd_ptr++ )
- {
- if ( snd_ptr->card_type == SNDCARD_CS4232 )
- {
- if ( _prep_type == _PREP_Motorola )
- {
- snd_ptr->config.io_base = 0x830;
- snd_ptr->config.irq = 10;
- snd_ptr->config.dma = ppc_cs4232_dma = 6;
- snd_ptr->config.dma2 = ppc_cs4232_dma2 = 7;
- }
- if ( _prep_type == _PREP_IBM )
- {
- snd_ptr->config.io_base = 0x530;
- snd_ptr->config.irq = 5;
- snd_ptr->config.dma = ppc_cs4232_dma = 1;
- /* this is wrong - but leave it for now */
- snd_ptr->config.dma2 = ppc_cs4232_dma2 = 7;
- }
- }
- }
- }
-#endif /* CONFIG_SOUND_CS4232 */
+#ifdef CONFIG_SOUND_CS4232
+ prep_init_sound();
+#endif /* CONFIG_SOUND_CS4232 */
- /*print_residual_device_info();*/
+ prep_init_vesa();
switch (_prep_type) {
case _PREP_Motorola:
@@ -327,9 +812,8 @@
}
#ifdef CONFIG_VGA_CONSOLE
- /* remap the VGA memory */
+ /* vgacon.c needs to know where we mapped IO memory in io_block_mapping() */
vgacon_remap_base = 0xf0000000;
- /*vgacon_remap_base = ioremap(0xc0000000, 0xba000);*/
conswitchp = &vga_con;
#elif defined(CONFIG_DUMMY_CONSOLE)
conswitchp = &dummy_con;
@@ -502,108 +986,6 @@
tb_to_us = mulhwu_scale_factor(freq, 1000000);
}
-static void __prep
-prep_restart(char *cmd)
-{
-#define PREP_SP92 0x92 /* Special Port 92 */
- __cli(); /* no interrupts */
-
- /* set exception prefix high - to the prom */
- _nmask_and_or_msr(0, MSR_IP);
-
- /* make sure bit 0 (reset) is a 0 */
- outb( inb(PREP_SP92) & ~1L , PREP_SP92);
- /* signal a reset to system control port A - soft reset */
- outb( inb(PREP_SP92) | 1 , PREP_SP92);
-
- while ( 1 ) ;
- /* not reached */
-#undef PREP_SP92
-}
-
-static void __prep
-prep_halt(void)
-{
- __cli(); /* no interrupts */
-
- /* set exception prefix high - to the prom */
- _nmask_and_or_msr(0, MSR_IP);
-
- while ( 1 ) ;
- /* not reached */
-}
-
-/*
- * On IBM PReP's, power management is handled by a Signetics 87c750 behind the
- * Utah component on the ISA bus. To access the 750 you must write a series of
- * nibbles to port 0x82a (decoded by the Utah). This is described somewhat in
- * the IBM Carolina Technical Specification.
- * -Hollis
- */
-static void __prep
-utah_sig87c750_setbit(unsigned int bytenum, unsigned int bitnum, int value)
-{
- /*
- * byte1: 0 0 0 1 0 d a5 a4
- * byte2: 0 0 0 1 a3 a2 a1 a0
- *
- * d = the bit's value, enabled or disabled
- * (a5 a4 a3) = the byte number, minus 20
- * (a2 a1 a0) = the bit number
- *
- * example: set the 5th bit of byte 21 (21.5)
- * a5 a4 a3 = 001 (byte 1)
- * a2 a1 a0 = 101 (bit 5)
- *
- * byte1 = 0001 0100 (0x14)
- * byte2 = 0001 1101 (0x1d)
- */
- unsigned char byte1=0x10, byte2=0x10;
- const unsigned int pm_reg_1=0x82a; /* ISA address */
-
- /* the 750's '20.0' is accessed as '0.0' through Utah (which adds 20) */
- bytenum -= 20;
-
- byte1 |= (!!value) << 2; /* set d */
- byte1 |= (bytenum >> 1) & 0x3; /* set a5, a4 */
-
- byte2 |= (bytenum & 0x1) << 3; /* set a3 */
- byte2 |= bitnum & 0x7; /* set a2, a1, a0 */
-
- outb(byte1, pm_reg_1); /* first nibble */
- mb();
- udelay(100); /* important: let controller recover */
-
- outb(byte2, pm_reg_1); /* second nibble */
- mb();
- udelay(100); /* important: let controller recover */
-}
-
-static void __prep
-prep_power_off(void)
-{
- if ( _prep_type == _PREP_IBM) {
- /* tested on:
- * Carolina's: 7248-43P, 6070 (PowerSeries 850)
- * should work on:
- * Carolina: 6050 (PowerSeries 830)
- * 7043-140 (Tiger 1)
- */
- unsigned long flags;
- __cli();
- /* set exception prefix high - to the prom */
- save_flags( flags );
- restore_flags( flags|MSR_IP );
-
- utah_sig87c750_setbit(21, 5, 1); /* set bit 21.5, "PMEXEC_OFF" */
-
- while ( 1 ) ;
- /* not reached */
- } else {
- prep_halt();
- }
-}
-
static unsigned int __prep
prep_irq_cannonicalize(u_int irq)
{
@@ -621,12 +1003,28 @@
prep_init_IRQ(void)
{
int i;
+ unsigned int pci_viddid, pci_did;
- if (OpenPIC_Addr != NULL)
- openpic_init(1, NUM_8259_INTERRUPTS, 0, -1);
- for ( i = 0 ; i < NUM_8259_INTERRUPTS ; i++ )
+ if (OpenPIC_Addr != NULL) {
+ openpic_init(NUM_8259_INTERRUPTS);
+ /* We have a cascade on OpenPIC IRQ 0, Linux IRQ 16 */
+ openpic_hookup_cascade(NUM_8259_INTERRUPTS, "82c59 cascade",
+ i8259_irq);
+ }
+ for (i = 0; i < NUM_8259_INTERRUPTS; i++)
irq_desc[i].handler = &i8259_pic;
- i8259_init(0xbffffff0); /* PCI interrupt ack address for MPC105 and 106 */
+ /* If we have a Raven PCI bridge or a Hawk PCI bridge / Memory
+ * controller, we poll (as they have a different int-ack address). */
+ early_read_config_dword(0, 0, 0, PCI_VENDOR_ID, &pci_viddid);
+ pci_did = (pci_viddid & 0xffff0000) >> 16;
+ if (((pci_viddid & 0xffff) == PCI_VENDOR_ID_MOTOROLA)
+ && ((pci_did == PCI_DEVICE_ID_MOTOROLA_RAVEN)
+ || (pci_did == PCI_DEVICE_ID_MOTOROLA_HAWK)))
+ i8259_init(0);
+ else
+ /* PCI interrupt ack address given in section 6.1.8 of the
+ * PReP specification. */
+ i8259_init(0xbffffff0);
}
#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
@@ -659,46 +1057,6 @@
return 0;
}
}
-
-static int __prep
-prep_ide_check_region(ide_ioreg_t from, unsigned int extent)
-{
- return check_region(from, extent);
-}
-
-static void __prep
-prep_ide_request_region(ide_ioreg_t from,
- unsigned int extent,
- const char *name)
-{
- request_region(from, extent, name);
-}
-
-static void __prep
-prep_ide_release_region(ide_ioreg_t from,
- unsigned int extent)
-{
- release_region(from, extent);
-}
-
-static void __init
-prep_ide_init_hwif_ports (hw_regs_t *hw, ide_ioreg_t data_port, ide_ioreg_t ctrl_port, int *irq)
-{
- ide_ioreg_t reg = data_port;
- int i;
-
- for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
- hw->io_ports[i] = reg;
- reg += 1;
- }
- if (ctrl_port) {
- hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port;
- } else {
- hw->io_ports[IDE_CONTROL_OFFSET] = hw->io_ports[IDE_DATA_OFFSET] + 0x206;
- }
- if (irq != NULL)
- *irq = 0;
-}
#endif
#ifdef CONFIG_SMP
@@ -722,7 +1080,7 @@
{
*(unsigned long *)KERNELBASE = nr;
asm volatile("dcbf 0,%0"::"r"(KERNELBASE):"memory");
- printk("CPU1 reset, waiting\n");
+ printk("CPU1 released, waiting\n");
}
static void __init
@@ -741,34 +1099,12 @@
#endif /* CONFIG_SMP */
/*
- * This finds the amount of physical ram and does necessary
- * setup for prep. This is pretty architecture specific so
- * this will likely stay separate from the pmac.
- * -- Cort
+ * What ever boots us must pass in the ammount of memory.
*/
static unsigned long __init
prep_find_end_of_memory(void)
{
- unsigned long total = 0;
- extern unsigned int boot_mem_size;
-
-#ifdef CONFIG_PREP_RESIDUAL
- total = res->TotalMemory;
-#endif
-
- if (total == 0 && boot_mem_size != 0)
- total = boot_mem_size;
- else if (total == 0) {
- /*
- * I need a way to probe the amount of memory if the residual
- * data doesn't contain it. -- Cort
- */
- total = 0x02000000;
- printk(KERN_INFO "Ramsize from residual data was 0"
- " -- defaulting to %ldM\n", total>>20);
- }
-
- return (total);
+ return boot_mem_size;
}
/*
@@ -789,8 +1125,6 @@
#ifdef CONFIG_NVRAM
request_region(PREP_NVRAM_AS0, 0x8, "nvram");
#endif
- request_region(0x20,0x20,"pic1");
- request_region(0xa0,0x20,"pic2");
request_region(0x00,0x20,"dma1");
request_region(0x40,0x20,"timer");
request_region(0x80,0x10,"dma page reg");
@@ -818,14 +1152,12 @@
/* figure out what kind of prep workstation we are */
#ifdef CONFIG_PREP_RESIDUAL
- if ( res->ResidualLength != 0 )
- {
+ if ( res->ResidualLength != 0 ) {
if ( !strncmp(res->VitalProductData.PrintableModel,"IBM",3) )
_prep_type = _PREP_IBM;
else
_prep_type = _PREP_Motorola;
- }
- else /* assume motorola if no residual (netboot?) */
+ } else /* assume motorola if no residual (netboot?) */
#endif
{
_prep_type = _PREP_Motorola;
@@ -833,7 +1165,7 @@
ppc_md.setup_arch = prep_setup_arch;
ppc_md.show_percpuinfo = prep_show_percpuinfo;
- ppc_md.show_cpuinfo = prep_show_cpuinfo;
+ ppc_md.show_cpuinfo = NULL; /* set in prep_setup_arch() */
ppc_md.irq_cannonicalize = prep_irq_cannonicalize;
ppc_md.init_IRQ = prep_init_IRQ;
/* this gets changed later on if we have an OpenPIC -- Cort */
@@ -841,7 +1173,7 @@
ppc_md.init = prep_init2;
ppc_md.restart = prep_restart;
- ppc_md.power_off = prep_power_off;
+ ppc_md.power_off = NULL; /* set in prep_setup_arch() */
ppc_md.halt = prep_halt;
ppc_md.nvram_read_val = prep_nvram_read_val;
@@ -865,10 +1197,6 @@
#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
ppc_ide_md.default_irq = prep_ide_default_irq;
ppc_ide_md.default_io_base = prep_ide_default_io_base;
- ppc_ide_md.ide_check_region = prep_ide_check_region;
- ppc_ide_md.ide_request_region = prep_ide_request_region;
- ppc_ide_md.ide_release_region = prep_ide_release_region;
- ppc_ide_md.ide_init_hwif = prep_ide_init_hwif_ports;
#endif
#ifdef CONFIG_VT
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)