/*
* Board setup routines for the Motorola SPS Sandpoint Test Platform.
*
* Author: Mark A. Greer
* mgreer@mvista.com
*
* 2000-2003 (c) MontaVista Software, Inc. This file is licensed under
* the terms of the GNU General Public License version 2. This program
* is licensed "as is" without any warranty of any kind, whether express
* or implied.
*/
/*
* This file adds support for the Motorola SPS Sandpoint Test Platform.
* These boards have a PPMC slot for the processor so any combination
* of cpu and host bridge can be attached. This port is for an 8240 PPMC
* module from Motorola SPS and other closely related cpu/host bridge
* combinations (e.g., 750/755/7400 with MPC107 host bridge).
* The sandpoint itself has a Windbond 83c553 (PCI-ISA bridge, 2 DMA ctlrs, 2
* cascaded 8259 interrupt ctlrs, 8254 Timer/Counter, and an IDE ctlr), a
* National 87308 (RTC, 2 UARTs, Keyboard & mouse ctlrs, and a floppy ctlr),
* and 4 PCI slots (only 2 of which are usable; the other 2 are keyed for 3.3V
* but are really 5V).
*
* The firmware on the sandpoint is called DINK (not my acronym :). This port
* depends on DINK to do some basic initialization (e.g., initialize the memory
* ctlr) and to ensure that the processor is using MAP B (CHRP map).
*
* The switch settings for the Sandpoint board MUST be as follows:
* S3: down
* S4: up
* S5: up
* S6: down
*
* 'down' is in the direction from the PCI slots towards the PPMC slot;
* 'up' is in the direction from the PPMC slot towards the PCI slots.
* Be careful, the way the sandpoint board is installed in XT chasses will
* make the directions reversed.
*
* Since Motorola listened to our suggestions for improvement, we now have
* the Sandpoint X3 board. All of the PCI slots are available, it uses
* the serial interrupt interface (just a hardware thing we need to
* configure properly).
*
* Use the default X3 switch settings. The interrupts are then:
* EPIC Source
* 0 SIOINT (8259, active low)
* 1 PCI #1
* 2 PCI #2
* 3 PCI #3
* 4 PCI #4
* 7 Winbond INTC (IDE interrupt)
* 8 Winbond INTD (IDE interrupt)
*
*
* Motorola has finally released a version of DINK32 that correctly
* (seemingly) initializes the memory controller correctly, regardless
* of the amount of memory in the system. Once a method of determining
* what version of DINK initializes the system for us, if applicable, is
* found, we can hopefully stop hardcoding 32MB of RAM.
*/
#include <linux/stddef.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/reboot.h>
#include <linux/pci.h>
#include <linux/kdev_t.h>
#include <linux/major.h>
#include <linux/initrd.h>
#include <linux/console.h>
#include <linux/delay.h>
#include <linux/ide.h>
#include <linux/seq_file.h>
#include <linux/root_dev.h>
#include <linux/serial.h>
#include <linux/tty.h> /* for linux/serial_core.h */
#include <linux/serial_core.h>
#include <linux/serial_8250.h>
#include <asm/system.h>
#include <asm/pgtable.h>
#include <asm/page.h>
#include <asm/time.h>
#include <asm/dma.h>
#include <asm/io.h>
#include <asm/machdep.h>
#include <asm/prom.h>
#include <asm/smp.h>
#include <asm/vga.h>
#include <asm/open_pic.h>
#include <asm/i8259.h>
#include <asm/todc.h>
#include <asm/bootinfo.h>
#include <asm/mpc10x.h>
#include <asm/pci-bridge.h>
#include <asm/kgdb.h>
#include <asm/ppc_sys.h>
#include "sandpoint.h"
/* Set non-zero if an X2 Sandpoint detected. */
static int sandpoint_is_x2;
unsigned char __res[sizeof(bd_t)];
static void sandpoint_halt(void);
static void sandpoint_probe_type(void);
/*
* Define all of the IRQ senses and polarities. Taken from the
* Sandpoint X3 User's manual.
*/
static u_char sandpoint_openpic_initsenses[] __initdata = {
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 0: SIOINT */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 2: PCI Slot 1 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 3: PCI Slot 2 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 4: PCI Slot 3 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 5: PCI Slot 4 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 8: IDE (INT C) */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE) /* 9: IDE (INT D) */
};
/*
* Motorola SPS Sandpoint interrupt routing.
*/
static inline int
x3_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
{
static char pci_irq_table[][4] =
/*
* PCI IDSEL/INTPIN->INTLINE
* A B C D
*/
{
{ 16, 0, 0, 0 }, /* IDSEL 11 - i8259 on Winbond */
{ 0, 0, 0, 0 }, /* IDSEL 12 - unused */
{ 18, 21, 20, 19 }, /* IDSEL 13 - PCI slot 1 */
{ 19, 18, 21, 20 }, /* IDSEL 14 - PCI slot 2 */
{ 20, 19, 18, 21 }, /* IDSEL 15 - PCI slot 3 */
{ 21, 20, 19, 18 }, /* IDSEL 16 - PCI slot 4 */
};
const long min_idsel = 11, max_idsel = 16, irqs_per_slot = 4;
return PCI_IRQ_TABLE_LOOKUP;
}
static inline int
x2_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
{
static char pci_irq_table[][4] =
/*
* PCI IDSEL/INTPIN->INTLINE
* A B C D
*/
{
{ 18, 0, 0, 0 }, /* IDSEL 11 - i8259 on Windbond */
{ 0, 0, 0, 0 }, /* IDSEL 12 - unused */
{ 16, 17, 18, 19 }, /* IDSEL 13 - PCI slot 1 */
{ 17, 18, 19, 16 }, /* IDSEL 14 - PCI slot 2 */
{ 18, 19, 16, 17 }, /* IDSEL 15 - PCI slot 3 */
{ 19, 16, 17, 18 }, /* IDSEL 16 - PCI slot 4 */
};
const long min_idsel = 11, max_idsel = 16, irqs_per_slot = 4;
return PCI_IRQ_TABLE_LOOKUP;
}
static void __init
sandpoint_setup_winbond_83553(struct pci_controller *hose)
{
int devfn;
/*
* Route IDE interrupts directly to the 8259's IRQ 14 & 15.
* We can't route the IDE interrupt to PCI INTC# or INTD# because those
* woule interfere with the PMC's INTC# and INTD# lines.
*/
/*
* Winbond Fcn 0
*/
devfn = PCI_DEVFN(11,0);
early_write_config_byte(hose,
0,
devfn,
0x43, /* IDE Interrupt Routing Control */
0xef);
early_write_config_word(hose,
0,
devfn,
0x44, /* PCI Interrupt Routing Control */
0x0000);
/* Want ISA memory cycles to be forwarded to PCI bus */
early_write_config_byte(hose,
0,
devfn,
0x48, /* ISA-to-PCI Addr Decoder Control */
0xf0);
/* Enable Port 92. */
early_write_config_byte(hose,
0,
devfn,
0x4e, /* AT System Control Register */
0x06);
/*
* Winbond Fcn 1
*/
devfn = PCI_DEVFN(11,1);
/* Put IDE controller into native mode. */
early_write_config_byte(hose,
0,
devfn,
0x09, /* Programming interface Register */
0x8f);
/* Init IRQ routing, enable both ports, disable fast 16 */
early_write_config_dword(hose,
0,
devfn,
0x40, /* IDE Control/Status Register */
0x00ff0011);
return;
}
/* On the sandpoint X2, we must avoid sending configuration cycles to
* device #12 (IDSEL addr = AD12).
*/
static int
x2_exclude_device(u_char bus, u_char devfn)
{
if ((bus == 0) && (PCI_SLOT(devfn) == SANDPOINT_HOST_BRIDGE_IDSEL))
return PCIBIOS_DEVICE_NOT_FOUND;
else
return PCIBIOS_SUCCESSFUL;
}
static void __init
sandpoint_find_bridges(void)
{
struct pci_controller *hose;
hose = pcibios_alloc_controller();
if (!hose)
return;
hose->first_busno = 0;
hose->last_busno = 0xff;
if (mpc10x_bridge_init(hose,
MPC10X_MEM_MAP_B,
MPC10X_MEM_MAP_B,
MPC10X_MAPB_EUMB_BASE) == 0) {
/* Do early winbond init, then scan PCI bus */
sandpoint_setup_winbond_83553(hose);
hose->last_busno = pciauto_bus_scan(hose, hose->first_busno);
ppc_md.pcibios_fixup = NULL;
ppc_md.pcibios_fixup_bus = NULL;
ppc_md.pci_swizzle = common_swizzle;
if (sandpoint_is_x2) {
ppc_md.pci_map_irq = x2_map_irq;
ppc_md.pci_exclude_device = x2_exclude_device;
} else
ppc_md.pci_map_irq = x3_map_irq;
}
else {
if (ppc_md.progress)
ppc_md.progress("Bridge init failed", 0x100);
printk("Host bridge init failed\n");
}
return;
}
static void __init
sandpoint_setup_arch(void)
{
/* Probe for Sandpoint model */
sandpoint_probe_type();
if (sandpoint_is_x2)
epic_serial_mode = 0;
loops_per_jiffy = 100000000 / HZ;
#ifdef CONFIG_BLK_DEV_INITRD
if (initrd_start)
ROOT_DEV = Root_RAM0;
else
#endif
#ifdef CONFIG_ROOT_NFS
ROOT_DEV = Root_NFS;
#else
ROOT_DEV = Root_HDA1;
#endif
/* Lookup PCI host bridges */
sandpoint_find_bridges();
if (strncmp (cur_ppc_sys_spec->ppc_sys_name, "8245", 4) == 0)
{
bd_t *bp = (bd_t *)__res;
struct plat_serial8250_port *pdata;
pdata = (struct plat_serial8250_port *) ppc_sys_get_pdata(MPC10X_UART0);
if (pdata)
{
pdata[0].uartclk = bp->bi_busfreq;
}
#ifdef CONFIG_SANDPOINT_ENABLE_UART1
pdata = (struct plat_serial8250_port *) ppc_sys_get_pdata(MPC10X_UART1);
if (pdata)
{
pdata[0].uartclk = bp->bi_busfreq;
}
#else
ppc_sys_device_remove(MPC10X_UART1);
#endif
}
printk(KERN_INFO "Motorola SPS Sandpoint Test Platform\n");
printk(KERN_INFO "Port by MontaVista Software, Inc. (source@mvista.com)\n");
/* DINK32 12.3 and below do not correctly enable any caches.
* We will do this now with good known values. Future versions
* of DINK32 are supposed to get this correct.
*/
if (cpu_has_feature(CPU_FTR_SPEC7450))
/* 745x is different. We only want to pass along enable. */
_set_L2CR(L2CR_L2E);
else if (cpu_has_feature(CPU_FTR_L2CR))
/* All modules have 1MB of L2. We also assume that an
* L2 divisor of 3 will work.
*/
_set_L2CR(L2CR_L2E | L2CR_L2SIZ_1MB | L2CR_L2CLK_DIV3
| L2CR_L2RAM_PIPE | L2CR_L2OH_1_0 | L2CR_L2DF);
#if 0
/* Untested right now. */
if (cpu_has_feature(CPU_FTR_L3CR)) {
/* Magic value. */
_set_L3CR(0x8f032000);
}
#endif
}
#define SANDPOINT_87308_CFG_ADDR 0x15c
#define SANDPOINT_87308_CFG_DATA 0x15d
#define SANDPOINT_87308_CFG_INB(addr, byte) { \
outb((addr), SANDPOINT_87308_CFG_ADDR); \
(byte) = inb(SANDPOINT_87308_CFG_DATA); \
}
#define SANDPOINT_87308_CFG_OUTB(addr, byte) { \
outb((addr), SANDPOINT_87308_CFG_ADDR); \
outb((byte), SANDPOINT_87308_CFG_DATA); \
}
#define SANDPOINT_87308_SELECT_DEV(dev_num) { \
SANDPOINT_87308_CFG_OUTB(0x07, (dev_num)); \
}
#define SANDPOINT_87308_DEV_ENABLE(dev_num) { \
SANDPOINT_87308_SELECT_DEV(dev_num); \
SANDPOINT_87308_CFG_OUTB(0x30, 0x01); \
}
/*
* To probe the Sandpoint type, we need to check for a connection between GPIO
* pins 6 and 7 on the NS87308 SuperIO.
*/
static void __init sandpoint_probe_type(void)
{
u8 x;
/* First, ensure that the GPIO pins are enabled. */
SANDPOINT_87308_SELECT_DEV(0x07); /* Select GPIO logical device */
SANDPOINT_87308_CFG_OUTB(0x60, 0x07); /* Base address 0x700 */
SANDPOINT_87308_CFG_OUTB(0x61, 0x00);
SANDPOINT_87308_CFG_OUTB(0x30, 0x01); /* Enable */
/* Now, set pin 7 to output and pin 6 to input. */
outb((inb(0x701) | 0x80) & 0xbf, 0x701);
/* Set push-pull output */
outb(inb(0x702) | 0x80, 0x702);
/* Set pull-up on input */
outb(inb(0x703) | 0x40, 0x703);
/* Set output high and check */
x = inb(0x700);
outb(x | 0x80, 0x700);
x = inb(0x700);
sandpoint_is_x2 = ! (x & 0x40);
if (ppc_md.progress && sandpoint_is_x2)
ppc_md.progress("High output says X2", 0);
/* Set output low and check */
outb(x & 0x7f, 0x700);
sandpoint_is_x2 |= inb(0x700) & 0x40;
if (ppc_md.progress && sandpoint_is_x2)
ppc_md.progress("Low output says X2", 0);
if (ppc_md.progress && ! sandpoint_is_x2)
ppc_md.progress("Sandpoint is X3", 0);
}
/*
* Fix IDE interrupts.
*/
static int __init
sandpoint_fix_winbond_83553(void)
{
/* Make some 8259 interrupt level sensitive */
outb(0xe0, 0x4d0);
outb(0xde, 0x4d1);
return 0;
}
arch_initcall(sandpoint_fix_winbond_83553);
/*
* Initialize the ISA devices on the Nat'l PC87308VUL SuperIO chip.
*/
static int __init
sandpoint_setup_natl_87308(void)
{
u_char reg;
/*
* Enable all the devices on the Super I/O chip.
*/
SANDPOINT_87308_SELECT_DEV(0x00); /* Select kbd logical device */
SANDPOINT_87308_CFG_OUTB(0xf0, 0x00); /* Set KBC clock to 8 Mhz */
SANDPOINT_87308_DEV_ENABLE(0x00); /* Enable keyboard */
SANDPOINT_87308_DEV_ENABLE(0x01); /* Enable mouse */
SANDPOINT_87308_DEV_ENABLE(0x02); /* Enable rtc */
SANDPOINT_87308_DEV_ENABLE(0x03); /* Enable fdc (floppy) */
SANDPOINT_87308_DEV_ENABLE(0x04); /* Enable parallel */
SANDPOINT_87308_DEV_ENABLE(0x05); /* Enable UART 2 */
SANDPOINT_87308_CFG_OUTB(0xf0, 0x82); /* Enable bank select regs */
SANDPOINT_87308_DEV_ENABLE(0x06); /* Enable UART 1 */
SANDPOINT_87308_CFG_OUTB(0xf0, 0x82); /* Enable bank select regs */
/* Set up floppy in PS/2 mode */
outb(0x09, SIO_CONFIG_RA);
reg = inb(SIO_CONFIG_RD);
reg = (reg & 0x3F) | 0x40;
outb(reg, SIO_CONFIG_RD);
outb(reg, SIO_CONFIG_RD); /* Have to write twice to change! */
return 0;
}
arch_initcall(sandpoint_setup_natl_87308);
static int __init
sandpoint_request_io(void)
{
request_region(0x00,0x20,"dma1");
request_region(0x20,0x20,"pic1");
request_region(0x40,0x20,"timer");
request_region(0x80,0x10,"dma page reg");
request_region(0xa0,0x20,"pic2");
request_region(0xc0,0x20,"dma2");
return 0;
}
arch_initcall(sandpoint_request_io);
/*
* Interrupt setup and service. Interrupts on the Sandpoint come
* from the four PCI slots plus the 8259 in the Winbond Super I/O (SIO).
* The 8259 is cascaded from EPIC IRQ0, IRQ1-4 map to PCI slots 1-4,
* IDE is on EPIC 7 and 8.
*/
static void __init
sandpoint_init_IRQ(void)
{
int i;
OpenPIC_InitSenses = sandpoint_openpic_initsenses;
OpenPIC_NumInitSenses = sizeof(sandpoint_openpic_initsenses);
mpc10x_set_openpic();
openpic_hookup_cascade(sandpoint_is_x2 ? 17 : NUM_8259_INTERRUPTS, "82c59 cascade",
i8259_irq);
/*
* The EPIC allows for a read in the range of 0xFEF00000 ->
* 0xFEFFFFFF to generate a PCI interrupt-acknowledge transaction.
*/
i8259_init(0xfef00000, 0);
}
static unsigned long __init
sandpoint_find_end_of_memory(void)
{
bd_t *bp = (bd_t *)__res;
if (bp->bi_memsize)
return bp->bi_memsize;
/* DINK32 13.0 correctly initializes things, so iff you use
* this you _should_ be able to change this instead of a
* hardcoded value. */
#if 0
return mpc10x_get_mem_size(MPC10X_MEM_MAP_B);
#else
return 32*1024*1024;
#endif
}
static void __init
sandpoint_map_io(void)
{
io_block_mapping(0xfe000000, 0xfe000000, 0x02000000, _PAGE_IO);
}
static void
sandpoint_restart(char *cmd)
{
local_irq_disable();
/* Set exception prefix high - to the firmware */
_nmask_and_or_msr(0, MSR_IP);
/* Reset system via Port 92 */
outb(0x00, 0x92);
outb(0x01, 0x92);
for(;;); /* Spin until reset happens */
}
static void
sandpoint_power_off(void)
{
local_irq_disable();
for(;;); /* No way to shut power off with software */
/* NOTREACHED */
}
static void
sandpoint_halt(void)
{
sandpoint_power_off();
/* NOTREACHED */
}
static int
sandpoint_show_cpuinfo(struct seq_file *m)
{
seq_printf(m, "vendor\t\t: Motorola SPS\n");
seq_printf(m, "machine\t\t: Sandpoint\n");
return 0;
}
#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
/*
* IDE support.
*/
static int sandpoint_ide_ports_known = 0;
static unsigned long sandpoint_ide_regbase[MAX_HWIFS];
static unsigned long sandpoint_ide_ctl_regbase[MAX_HWIFS];
static unsigned long sandpoint_idedma_regbase;
static void
sandpoint_ide_probe(void)
{
struct pci_dev *pdev = pci_get_device(PCI_VENDOR_ID_WINBOND,
PCI_DEVICE_ID_WINBOND_82C105, NULL);
if (pdev) {
sandpoint_ide_regbase[0]=pdev->resource[0].start;
sandpoint_ide_regbase[1]=pdev->resource[2].start;
sandpoint_ide_ctl_regbase[0]=pdev->resource[1].start;
sandpoint_ide_ctl_regbase[1]=pdev->resource[3].start;
sandpoint_idedma_regbase=pdev->resource[4].start;
pci_dev_put(pdev);
}
sandpoint_ide_ports_known = 1;
}
static int
sandpoint_ide_default_irq(unsigned long base)
{
if (sandpoint_ide_ports_known == 0)
sandpoint_ide_probe();
if (base == sandpoint_ide_regbase[0])
return SANDPOINT_IDE_INT0;
else if (base == sandpoint_ide_regbase[1])
return SANDPOINT_IDE_INT1;
else
return 0;
}
static unsigned long
sandpoint_ide_default_io_base(int index)
{
if (sandpoint_ide_ports_known == 0)
sandpoint_ide_probe();
return sandpoint_ide_regbase[index];
}
static void __init
sandpoint_ide_init_hwif_ports(hw_regs_t *hw, unsigned long data_port,
unsigned long ctrl_port, int *irq)
{
unsigned long reg = data_port;
uint alt_status_base;
int i;
for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
hw->io_ports[i] = reg++;
}
if (data_port == sandpoint_ide_regbase[0]) {
alt_status_base = sandpoint_ide_ctl_regbase[0] + 2;
hw->irq = 14;
}
else if (data_port == sandpoint_ide_regbase[1]) {
alt_status_base = sandpoint_ide_ctl_regbase[1] + 2;
hw->irq = 15;
}
else {
alt_status_base = 0;
hw->irq = 0;
}
if (ctrl_port) {
hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port;
} else {
hw->io_ports[IDE_CONTROL_OFFSET] = alt_status_base;
}
if (irq != NULL) {
*irq = hw->irq;
}
}
#endif
/*
* Set BAT 3 to map 0xf8000000 to end of physical memory space 1-to-1.
*/
static __inline__ void
sandpoint_set_bat(void)
{
unsigned long bat3u, bat3l;
__asm__ __volatile__(
" lis %0,0xf800\n \
ori %1,%0,0x002a\n \
ori %0,%0,0x0ffe\n \
mtspr 0x21e,%0\n \
mtspr 0x21f,%1\n \
isync\n \
sync "
: "=r" (bat3u), "=r" (bat3l));
}
TODC_ALLOC();
void __init
platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7)
{
parse_bootinfo(find_bootinfo());
/* ASSUMPTION: If both r3 (bd_t pointer) and r6 (cmdline pointer)
* are non-zero, then we should use the board info from the bd_t
* structure and the cmdline pointed to by r6 instead of the
* information from birecs, if any. Otherwise, use the information
* from birecs as discovered by the preceding call to
* parse_bootinfo(). This rule should work with both PPCBoot, which
* uses a bd_t board info structure, and the kernel boot wrapper,
* which uses birecs.
*/
if (r3 && r6) {
/* copy board info structure */
memcpy( (void *)__res,(void *)(r3+KERNELBASE), sizeof(bd_t) );
/* copy command line */
*(char *)(r7+KERNELBASE) = 0;
strcpy(cmd_line, (char *)(r6+KERNELBASE));
}
#ifdef CONFIG_BLK_DEV_INITRD
/* take care of initrd if we have one */
if (r4) {
initrd_start = r4 + KERNELBASE;
initrd_end = r5 + KERNELBASE;
}
#endif /* CONFIG_BLK_DEV_INITRD */
/* Map in board regs, etc. */
sandpoint_set_bat();
isa_io_base = MPC10X_MAPB_ISA_IO_BASE;
isa_mem_base = MPC10X_MAPB_ISA_MEM_BASE;
pci_dram_offset = MPC10X_MAPB_DRAM_OFFSET;
ISA_DMA_THRESHOLD = 0x00ffffff;
DMA_MODE_READ = 0x44;
DMA_MODE_WRITE = 0x48;
ppc_do_canonicalize_irqs = 1;
ppc_md.setup_arch = sandpoint_setup_arch;
ppc_md.show_cpuinfo = sandpoint_show_cpuinfo;
ppc_md.init_IRQ = sandpoint_init_IRQ;
ppc_md.get_irq = openpic_get_irq;
ppc_md.restart = sandpoint_restart;
ppc_md.power_off = sandpoint_power_off;
ppc_md.halt = sandpoint_halt;
ppc_md.find_end_of_memory = sandpoint_find_end_of_memory;
ppc_md.setup_io_mappings = sandpoint_map_io;
TODC_INIT(TODC_TYPE_PC97307, 0x70, 0x00, 0x71, 8);
ppc_md.time_init = todc_time_init;
ppc_md.set_rtc_time = todc_set_rtc_time;
ppc_md.get_rtc_time = todc_get_rtc_time;
ppc_md.calibrate_decr = todc_calibrate_decr;
ppc_md.nvram_read_val = todc_mc146818_read_val;
ppc_md.nvram_write_val = todc_mc146818_write_val;
#ifdef CONFIG_KGDB
ppc_md.kgdb_map_scc = gen550_kgdb_map_scc;
#endif
#ifdef CONFIG_SERIAL_TEXT_DEBUG
ppc_md.progress = gen550_progress;
#endif
#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
ppc_ide_md.default_irq = sandpoint_ide_default_irq;
ppc_ide_md.default_io_base = sandpoint_ide_default_io_base;
ppc_ide_md.ide_init_hwif = sandpoint_ide_init_hwif_ports;
#endif
}
