/*
- * arch/ppc/platforms/setup.c
- *
* Copyright (C) 1995 Linus Torvalds
* Adapted from 'alpha' version by Gary Thomas
* Modified by Cort Dougan (cort@cs.nmt.edu)
#include <asm/pci-bridge.h>
#include <asm/todc.h>
+/* prep registers for L2 */
+#define CACHECRBA 0x80000823 /* Cache configuration register address */
+#define L2CACHE_MASK 0x03 /* Mask for 2 L2 Cache bits */
+#define L2CACHE_512KB 0x00 /* 512KB */
+#define L2CACHE_256KB 0x01 /* 256KB */
+#define L2CACHE_1MB 0x02 /* 1MB */
+#define L2CACHE_NONE 0x03 /* NONE */
+#define L2CACHE_PARITY 0x08 /* Mask for L2 Cache Parity Protected bit */
+
TODC_ALLOC();
-unsigned char ucSystemType;
unsigned char ucBoardRev;
unsigned char ucBoardRevMaj, ucBoardRevMin;
int _prep_type;
+extern void prep_residual_setup_pci(char *irq_edge_mask_lo, char *irq_edge_mask_hi);
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);
#define cached_21 (((char *)(ppc_cached_irq_mask))[3])
#define cached_A1 (((char *)(ppc_cached_irq_mask))[2])
-/* for the mac fs */
-dev_t boot_dev;
-
#ifdef CONFIG_SOUND_CS4232
long ppc_cs4232_dma, ppc_cs4232_dma2;
#endif
}
/* cpuinfo code common to all IBM PReP */
-static void __prep
+static void
prep_ibm_cpuinfo(struct seq_file *m)
{
unsigned int equip_reg = inb(PREP_IBM_EQUIPMENT);
seq_printf(m, "bad");
seq_printf(m, "\n");
-#ifdef CONFIG_PREP_RESIDUAL
/* print info about SIMMs */
- if (res->ResidualLength != 0) {
+ if (have_residual_data) {
int i;
seq_printf(m, "simms\t\t: ");
for (i = 0; (res->ActualNumMemories) && (i < MAX_MEMS); i++) {
}
seq_printf(m, "\n");
}
-#endif
}
-static int __prep
+static int
+prep_gen_cpuinfo(struct seq_file *m)
+{
+ prep_ibm_cpuinfo(m);
+ return 0;
+}
+
+static int
prep_sandalfoot_cpuinfo(struct seq_file *m)
{
unsigned int equip_reg = inb(PREP_IBM_EQUIPMENT);
return 0;
}
-static int __prep
+static int
prep_thinkpad_cpuinfo(struct seq_file *m)
{
unsigned int equip_reg = inb(PREP_IBM_EQUIPMENT);
return 0;
}
-static int __prep
+static int
prep_carolina_cpuinfo(struct seq_file *m)
{
unsigned int equip_reg = inb(PREP_IBM_EQUIPMENT);
return 0;
}
-static int __prep
+static int
prep_tiger1_cpuinfo(struct seq_file *m)
{
unsigned int l2_reg = inb(PREP_IBM_L2INFO);
/* Used by all Motorola PReP */
-static int __prep
+static int
prep_mot_cpuinfo(struct seq_file *m)
{
unsigned int cachew = *((unsigned char *)CACHECRBA);
}
no_l2:
-#ifdef CONFIG_PREP_RESIDUAL
/* print info about SIMMs */
- if (res->ResidualLength != 0) {
+ if (have_residual_data) {
int i;
seq_printf(m, "simms\t\t: ");
for (i = 0; (res->ActualNumMemories) && (i < MAX_MEMS); i++) {
}
seq_printf(m, "\n");
}
-#endif
return 0;
}
-static void __prep
-prep_tiger1_progress(char *msg, unsigned short code)
-{
- outw(code, PREP_IBM_DISP);
-}
-
-static void __prep
+static void
prep_restart(char *cmd)
{
#define PREP_SP92 0x92 /* Special Port 92 */
#undef PREP_SP92
}
-static void __prep
+static void
prep_halt(void)
{
local_irq_disable(); /* no interrupts */
/* Carrera is the power manager in the Thinkpads. Unfortunately not much is
* known about it, so we can't power down.
*/
-static void __prep
+static void
prep_carrera_poweroff(void)
{
prep_halt();
* somewhat in the IBM Carolina Technical Specification.
* -Hollis
*/
-static void __prep
+static void
utah_sig87c750_setbit(unsigned int bytenum, unsigned int bitnum, int value)
{
/*
udelay(100); /* important: let controller recover */
}
-static void __prep
+static void
prep_sig750_poweroff(void)
{
/* tweak the power manager found in most IBM PRePs (except Thinkpads) */
/* not reached */
}
-static int __prep
+static int
prep_show_percpuinfo(struct seq_file *m, int i)
{
/* PREP's without residual data will give incorrect values here */
seq_printf(m, "clock\t\t: ");
-#ifdef CONFIG_PREP_RESIDUAL
- if (res->ResidualLength)
+ if (have_residual_data)
seq_printf(m, "%ldMHz\n",
(res->VitalProductData.ProcessorHz > 1024) ?
res->VitalProductData.ProcessorHz / 1000000 :
res->VitalProductData.ProcessorHz);
else
-#endif /* CONFIG_PREP_RESIDUAL */
seq_printf(m, "???\n");
return 0;
* Get the needed resource informations from residual data.
*
*/
-#ifdef CONFIG_PREP_RESIDUAL
- audiodevice = residual_find_device(~0, NULL, MultimediaController,
- AudioController, -1, 0);
+ if (have_residual_data)
+ audiodevice = residual_find_device(~0, NULL,
+ MultimediaController, AudioController, -1, 0);
+
if (audiodevice != NULL) {
PnP_TAG_PACKET *pkt;
if (pkt != NULL)
ppc_cs4232_dma2 = masktoint(pkt->S5_Pack.DMAMask);
}
-#endif
/*
* These are the PReP specs' defaults for the cs4231. We use these
static void __init
prep_init_vesa(void)
{
-#if defined(CONFIG_PREP_RESIDUAL) && \
- (defined(CONFIG_FB_VGA16) || defined(CONFIG_FB_VGA_16_MODULE) || \
+#if (defined(CONFIG_FB_VGA16) || defined(CONFIG_FB_VGA16_MODULE) || \
defined(CONFIG_FB_VESA))
- PPC_DEVICE *vgadev;
+ PPC_DEVICE *vgadev = NULL;
+
+ if (have_residual_data)
+ vgadev = residual_find_device(~0, NULL, DisplayController,
+ SVGAController, -1, 0);
- vgadev = residual_find_device(~0, NULL, DisplayController, SVGAController,
- -1, 0);
if (vgadev != NULL) {
PnP_TAG_PACKET *pkt;
}
}
}
-#endif /* CONFIG_PREP_RESIDUAL */
+#endif
+}
+
+/*
+ * Set DBAT 2 to access 0x80000000 so early progress messages will work
+ */
+static __inline__ void
+prep_set_bat(void)
+{
+ /* wait for all outstanding memory access to complete */
+ mb();
+
+ /* setup DBATs */
+ mtspr(SPRN_DBAT2U, 0x80001ffe);
+ mtspr(SPRN_DBAT2L, 0x8000002a);
+
+ /* wait for updates */
+ mb();
+}
+
+/*
+ * IBM 3-digit status LED
+ */
+static unsigned int ibm_statusled_base;
+
+static void
+ibm_statusled_progress(char *s, unsigned short hex);
+
+static int
+ibm_statusled_panic(struct notifier_block *dummy1, unsigned long dummy2,
+ void * dummy3)
+{
+ ibm_statusled_progress(NULL, 0x505); /* SOS */
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block ibm_statusled_block = {
+ ibm_statusled_panic,
+ NULL,
+ INT_MAX /* try to do it first */
+};
+
+static void
+ibm_statusled_progress(char *s, unsigned short hex)
+{
+ static int notifier_installed;
+ /*
+ * Progress uses 4 digits and we have only 3. So, we map 0xffff to
+ * 0xfff for display switch off. Out of range values are mapped to
+ * 0xeff, as I'm told 0xf00 and above are reserved for hardware codes.
+ * Install the panic notifier when the display is first switched off.
+ */
+ if (hex == 0xffff) {
+ hex = 0xfff;
+ if (!notifier_installed) {
+ ++notifier_installed;
+ atomic_notifier_chain_register(&panic_notifier_list,
+ &ibm_statusled_block);
+ }
+ }
+ else
+ if (hex > 0xfff)
+ hex = 0xeff;
+
+ mb();
+ outw(hex, ibm_statusled_base);
+}
+
+static void __init
+ibm_statusled_init(void)
+{
+ /*
+ * The IBM 3-digit LED display is specified in the residual data
+ * as an operator panel device, type "System Status LED". Find
+ * that device and determine its address. We validate all the
+ * other parameters on the off-chance another, similar device
+ * exists.
+ */
+ if (have_residual_data) {
+ PPC_DEVICE *led;
+ PnP_TAG_PACKET *pkt;
+
+ led = residual_find_device(~0, NULL, SystemPeripheral,
+ OperatorPanel, SystemStatusLED, 0);
+ if (!led)
+ return;
+
+ pkt = PnP_find_packet((unsigned char *)
+ &res->DevicePnPHeap[led->AllocatedOffset], S8_Packet, 0);
+ if (!pkt)
+ return;
+
+ if (pkt->S8_Pack.IOInfo != ISAAddr16bit)
+ return;
+ if (*(unsigned short *)pkt->S8_Pack.RangeMin !=
+ *(unsigned short *)pkt->S8_Pack.RangeMax)
+ return;
+ if (pkt->S8_Pack.IOAlign != 2)
+ return;
+ if (pkt->S8_Pack.IONum != 2)
+ return;
+
+ ibm_statusled_base = ld_le16((unsigned short *)
+ (pkt->S8_Pack.RangeMin));
+ ppc_md.progress = ibm_statusled_progress;
+ }
}
static void __init
{
case _PREP_IBM:
reg = inb(PREP_IBM_PLANAR);
- printk(KERN_INFO "IBM planar ID: %08x", reg);
+ printk(KERN_INFO "IBM planar ID: %02x", reg);
switch (reg) {
case PREP_IBM_SANDALFOOT:
prep_gen_enable_l2();
ppc_md.show_cpuinfo = prep_thinkpad_cpuinfo;
break;
default:
- printk(" -- unknown! Assuming Carolina");
+ if (have_residual_data) {
+ prep_gen_enable_l2();
+ setup_ibm_pci = prep_residual_setup_pci;
+ ppc_md.power_off = prep_halt;
+ ppc_md.show_cpuinfo = prep_gen_cpuinfo;
+ break;
+ }
+ else
+ printk(" - unknown! Assuming Carolina");
+ /* fall through */
case PREP_IBM_CAROLINA_IDE_0:
case PREP_IBM_CAROLINA_IDE_1:
case PREP_IBM_CAROLINA_IDE_2:
setup_ibm_pci = prep_tiger1_setup_pci;
ppc_md.power_off = prep_sig750_poweroff;
ppc_md.show_cpuinfo = prep_tiger1_cpuinfo;
- ppc_md.progress = prep_tiger1_progress;
break;
}
printk("\n");
/* vgacon.c needs to know where we mapped IO memory in io_block_mapping() */
vgacon_remap_base = 0xf0000000;
conswitchp = &vga_con;
-#elif defined(CONFIG_DUMMY_CONSOLE)
- conswitchp = &dummy_con;
#endif
}
static void __init
prep_calibrate_decr(void)
{
-#ifdef CONFIG_PREP_RESIDUAL
- unsigned long freq, divisor = 4;
-
- if ( res->VitalProductData.ProcessorBusHz ) {
- freq = res->VitalProductData.ProcessorBusHz;
- printk("time_init: decrementer frequency = %lu.%.6lu MHz\n",
- (freq/divisor)/1000000,
- (freq/divisor)%1000000);
- tb_to_us = mulhwu_scale_factor(freq/divisor, 1000000);
- tb_ticks_per_jiffy = freq / HZ / divisor;
- } else
-#endif
- todc_calibrate_decr();
-}
-
-static unsigned int __prep
-prep_irq_canonicalize(u_int irq)
-{
- if (irq == 2)
- {
- return 9;
+ if (have_residual_data) {
+ unsigned long freq, divisor = 4;
+
+ if ( res->VitalProductData.ProcessorBusHz ) {
+ freq = res->VitalProductData.ProcessorBusHz;
+ printk("time_init: decrementer frequency = %lu.%.6lu MHz\n",
+ (freq/divisor)/1000000,
+ (freq/divisor)%1000000);
+ tb_to_us = mulhwu_scale_factor(freq/divisor, 1000000);
+ tb_ticks_per_jiffy = freq / HZ / divisor;
+ }
}
else
- {
- return irq;
- }
+ todc_calibrate_decr();
}
static void __init
prep_init_IRQ(void)
{
- int i;
unsigned int pci_viddid, pci_did;
if (OpenPIC_Addr != NULL) {
openpic_hookup_cascade(NUM_8259_INTERRUPTS, "82c59 cascade",
i8259_irq);
}
- for ( i = 0 ; i < NUM_8259_INTERRUPTS ; i++ )
- irq_desc[i].handler = &i8259_pic;
+
+ if (have_residual_data) {
+ i8259_init(residual_isapic_addr(), 0);
+ return;
+ }
+
/* 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(NULL, 0, 0, PCI_VENDOR_ID, &pci_viddid);
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);
+ i8259_init(0, 0);
else
/* PCI interrupt ack address given in section 6.1.8 of the
* PReP specification. */
- i8259_init(MPC10X_MAPA_PCI_INTACK_ADDR);
+ i8259_init(MPC10X_MAPA_PCI_INTACK_ADDR, 0);
}
#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
/*
* IDE stuff.
*/
-static int __prep
+static int
prep_ide_default_irq(unsigned long base)
{
switch (base) {
}
}
-static unsigned long __prep
+static unsigned long
prep_ide_default_io_base(int index)
{
switch (index) {
do_openpic_setup_cpu();
}
-static struct smp_ops_t prep_smp_ops __prepdata = {
+static struct smp_ops_t prep_smp_ops = {
smp_openpic_message_pass,
smp_prep_probe,
smp_prep_kick_cpu,
static int __init
prep_request_io(void)
{
- if (_machine == _MACH_prep) {
#ifdef CONFIG_NVRAM
- request_region(PREP_NVRAM_AS0, 0x8, "nvram");
+ request_region(PREP_NVRAM_AS0, 0x8, "nvram");
#endif
- request_region(0x00,0x20,"dma1");
- request_region(0x40,0x20,"timer");
- request_region(0x80,0x10,"dma page reg");
- request_region(0xc0,0x20,"dma2");
- }
+ request_region(0x00,0x20,"dma1");
+ request_region(0x40,0x20,"timer");
+ request_region(0x80,0x10,"dma page reg");
+ request_region(0xc0,0x20,"dma2");
return 0;
}
ISA_DMA_THRESHOLD = 0x00ffffff;
DMA_MODE_READ = 0x44;
DMA_MODE_WRITE = 0x48;
+ ppc_do_canonicalize_irqs = 1;
/* figure out what kind of prep workstation we are */
-#ifdef CONFIG_PREP_RESIDUAL
- if ( res->ResidualLength != 0 ) {
+ if (have_residual_data) {
if ( !strncmp(res->VitalProductData.PrintableModel,"IBM",3) )
_prep_type = _PREP_IBM;
else
_prep_type = _PREP_Motorola;
- } else /* assume motorola if no residual (netboot?) */
-#endif
- {
+ }
+ else {
+ /* assume motorola if no residual (netboot?) */
_prep_type = _PREP_Motorola;
}
+#ifdef CONFIG_PREP_RESIDUAL
+ /* Switch off all residual data processing if the user requests it */
+ if (strstr(cmd_line, "noresidual") != NULL)
+ res = NULL;
+#endif
+
+ /* Initialise progress early to get maximum benefit */
+ prep_set_bat();
+ ibm_statusled_init();
+
ppc_md.setup_arch = prep_setup_arch;
ppc_md.show_percpuinfo = prep_show_percpuinfo;
ppc_md.show_cpuinfo = NULL; /* set in prep_setup_arch() */
- ppc_md.irq_canonicalize = prep_irq_canonicalize;
ppc_md.init_IRQ = prep_init_IRQ;
/* this gets changed later on if we have an OpenPIC -- Cort */
ppc_md.get_irq = i8259_irq;
+ ppc_md.phys_mem_access_prot = pci_phys_mem_access_prot;
+
ppc_md.restart = prep_restart;
ppc_md.power_off = NULL; /* set in prep_setup_arch() */
ppc_md.halt = prep_halt;
#endif
#ifdef CONFIG_SMP
- ppc_md.smp_ops = &prep_smp_ops;
+ smp_ops = &prep_smp_ops;
#endif /* CONFIG_SMP */
}
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