Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

In initarm() turn the LED yellow at the beginning, green at the end.

Browse Source 
Rewrite netwinder_restart to be self-contained, when it runs the MMU
is disabled.  Set cpu_reset_address to the physical address of
netwinder_restart, not virtual.
This commit is contained in:
uwe 2003-06-12 02:41:32 +00:00
parent c9b8d8909b
commit 69a7063772
1 changed files with 31 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
sys/arch/netwinder/netwinder/netwinder_machdep.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: netwinder_machdep.c,v 1.51 2003/05/22 05:47:12 thorpej Exp $ */
/* $NetBSD: netwinder_machdep.c,v 1.52 2003/06/12 02:41:32 uwe Exp $ */
/*
* Copyright (c) 1997,1998 Mark Brinicombe.
@ -100,7 +100,7 @@ bs_protos(generic);
* on where the ROM appears when you turn the MMU off.
*/
static void netwinder_reset(void);
u_int cpu_reset_address = (u_int) netwinder_reset;
u_int cpu_reset_address;
u_int dc21285_fclk = 63750000;
@ -292,14 +292,25 @@ cpu_reboot(howto, bootstr)
/*NOTREACHED*/
}
/*
* NB: this function runs with MMU disabled!
*/
static void
netwinder_reset(void)
{
ISA_PUTBYTE(0x370, 0x07); /* Select Logical Dev 7 (GPIO) */
ISA_PUTBYTE(0x371, 0x07);
ISA_PUTBYTE(0x370, 0xe6); /* Select GP16 Control Reg */
ISA_PUTBYTE(0x371, 0x00); /* Make GP16 an output */
ISA_PUTBYTE(0x338, 0xc4); /* Set GP17/GP16 & GP12 */
register u_int base = DC21285_PCI_IO_BASE;
#define PUTBYTE(reg, val) \
*((volatile u_int8_t *)(base + (reg))) = (val)
PUTBYTE(0x338, 0x84); /* Red led(GP17), fan on(GP12) */
PUTBYTE(0x370, 0x87); /* Enter the extended function mode */
PUTBYTE(0x370, 0x87); /* (need to write the magic twice) */
PUTBYTE(0x370, 0x07); /* Select Logical Device Number reg */
PUTBYTE(0x371, 0x07); /* Select Logical Device 7 (GPIO) */
PUTBYTE(0x370, 0xe6); /* Select GP16 Control Reg */
PUTBYTE(0x371, 0x00); /* Make GP16 an output */
PUTBYTE(0x338, 0xc4); /* RESET(GP16), red led, fan on */
}
/*
@ -374,6 +385,13 @@ initarm(void *arg)
extern char _end[];
pv_addr_t kernel_l1pt;
/*
* Turn the led off, then turn it yellow.
* 0x80 - red; 0x04 - fan; 0x02 - green.
*/
ISA_PUTBYTE(0x338, 0x04);
ISA_PUTBYTE(0x338, 0x86);
/*
* Set up a diagnostic console so we can see what's going
* on.
@ -798,6 +816,9 @@ initarm(void *arg)
pmap_bootstrap((pd_entry_t *)kernel_l1pt.pv_va, KERNEL_VM_BASE,
KERNEL_VM_BASE + KERNEL_VM_SIZE);
/* Now that pmap is inited, we can set cpu_reset_address */
cpu_reset_address = (u_int)vtophys((vaddr_t)netwinder_reset);
/* Setup the IRQ system */
printf("irq ");
footbridge_intr_init();
@ -829,6 +850,9 @@ initarm(void *arg)
Debugger();
#endif
/* Turn the led green */
ISA_PUTBYTE(0x338, 0x06);
/* We return the new stack pointer address */
return(kernelstack.pv_va + USPACE_SVC_STACK_TOP);
}