** 1998/08/30 David Kilzer: Added support for font_desc structures
** for linux-2.1.115
** 9/02/11 Richard Zidlicky: added Q40 support (initial vesion 99/01/01)
+** 2004/05/13 Kars de Jong: Finalised HP300 support
**
** This file is subject to the terms and conditions of the GNU General Public
** License. See the file README.legal in the main directory of this archive
#ifdef CONFIG_Q40
.globl q40_mem_cptr
#endif
-#ifdef CONFIG_HP300
-.globl hp300_phys_ram_base
-#endif
CPUTYPE_040 = 1 /* indicates an 040 */
CPUTYPE_060 = 2 /* indicates an 060 */
func_define mmu_get_page_table_entry,2
func_define mmu_print
func_define get_new_page
-#ifdef CONFIG_HP300
+#if defined(CONFIG_HP300) || defined(CONFIG_APOLLO)
func_define set_leds
#endif
.long MACH_BVME6000, BVME6000_BOOTI_VERSION
.long MACH_MAC, MAC_BOOTI_VERSION
.long MACH_Q40, Q40_BOOTI_VERSION
+ .long MACH_HP300, HP300_BOOTI_VERSION
.long 0
1: jra __start
jra __start
__INIT
ENTRY(__start)
-
-#ifdef CONFIG_HP300
-/* This is a hack. The HP NetBSD bootloader loads us at an arbitrary
- address (apparently 0xff002000 in practice) which is not good if we need
- to be able to map this to VA 0x1000. We could do it with pagetables but
- a better solution seems to be to relocate the kernel in physical memory
- before we start.
-
- So, we copy the entire kernel image (code+data+bss) down to the 16MB
- boundary that marks the start of RAM. This is slightly tricky because
- we must not overwrite the copying code itself. :-) */
-
-/* 15/5/98. The start address of physical RAM changes depending on how much
- RAM is present. This is actually a blessing in disguise as it provides
- a way for us to work out the RAM size rather than hardwiring it. */
-
- lea %pc@(_start),%a0
- movel %a0,%d6
- and #0xffff0000, %d6
- lea %pc@(hp300_phys_ram_base),%a0
- movel %d6, %a0@
- movel %pc@(L(custom)),%a3
- moveb #0xfe,%d7
- moveb %d7,%a3@(0x1ffff)
- lea %pc@(Lcopystart),%a0
- lea %pc@(Lcopyend),%a1
- movel %d6,%a2 /* Start of physical RAM */
-1: moveb %a0@+,%d0
- moveb %d0,%a2@+
- cmpl %a0,%a1
- jbne 1b
- movel %d6,%a2
- moveb #0xfd,%d7
- moveb %d7,%a3@(0x1ffff)
- lea %pc@(_stext),%a0
- lea %pc@(_end),%a1
- jmp %a2@
-
-Lcopystart:
- moveb #0xf7,%d7
- moveb %d7,%a3@(0x1ffff)
- movel %d6,%a2 /* Start of kernel */
- add #0x1000,%a2
-1: moveb %a0@+,%d0
- moveb %d0,%a2@+
- cmpl %a0,%a1
- jbne 1b
- moveb #0,%d7
- moveb %d7,%a3@(0x1ffff)
- movel %d6,%a0
- addl #Lstart1,%a0
- jmp %a0@
-Lcopyend:
-
-Lstart1:
- moveb #0x3f,%d7
- moveb %d7,%a3@(0x1ffff)
-#endif /* CONFIG_HP300 */
-
/*
* Setup initial stack pointer
*/
/*
* Record the CPU and machine type.
*/
-
-#ifndef CONFIG_HP300
get_bi_record BI_MACHTYPE
lea %pc@(m68k_machtype),%a1
movel %a0@,%a1@
get_bi_record BI_CPUTYPE
lea %pc@(m68k_cputype),%a1
movel %a0@,%a1@
-#else /* CONFIG_HP300 */
- /* FIXME HP300 doesn't use bootinfo yet */
- movel #MACH_HP300,%d4
- lea %pc@(m68k_machtype),%a0
- movel %d4,%a0@
- movel #FPU_68881,%d0
- lea %pc@(m68k_fputype),%a0
- movel %d0,%a0@
- movel #MMU_68030,%d0
- lea %pc@(m68k_mmutype),%a0
- movel %d0,%a0@
- movel #CPU_68030,%d0
- lea %pc@(m68k_cputype),%a0
- movel %d0,%a0@
- leds(0x1)
-#endif /* CONFIG_HP300 */
+ leds 0x1
#ifdef CONFIG_MAC
/*
#endif
+#ifdef CONFIG_HP300
+ is_not_hp300(L(nothp))
+
+ /* Get the address of the UART for serial debugging */
+ get_bi_record BI_HP300_UART_ADDR
+ tstl %d0
+ jbmi 1f
+ movel %a0@,%d3
+ lea %pc@(L(uartbase)),%a0
+ movel %d3,%a0@
+ get_bi_record BI_HP300_UART_SCODE
+ tstl %d0
+ jbmi 1f
+ movel %a0@,%d3
+ lea %pc@(L(uart_scode)),%a0
+ movel %d3,%a0@
+1:
+L(nothp):
+#endif
+
/*
* Initialize serial port
*/
putc '\n'
putc 'A'
-#ifdef CONFIG_HP300
- leds(0x2)
-#endif /* CONFIG_HP300 */
+ leds 0x2
dputn %pc@(L(cputype))
dputn %pc@(m68k_supervisor_cachemode)
dputn %pc@(m68k_pgtable_cachemode)
#ifdef CONFIG_HP300
is_not_hp300(L(nothp300))
-/* On the HP300, we map the ROM, INTIO and DIO regions (phys. 0x00xxxxxx)
- by mapping 32MB from 0xf0xxxxxx -> 0x00xxxxxx) using an 030 early
- termination page descriptor. The ROM mapping is needed because the LEDs
- are mapped there too. */
+ /* On the HP300, we map the ROM, INTIO and DIO regions (phys. 0x00xxxxxx)
+ * by mapping 32MB (on 020/030) or 16 MB (on 040) from 0xf0xxxxxx -> 0x00xxxxxx).
+ * The ROM mapping is needed because the LEDs are mapped there too.
+ */
+ is_040(1f)
+
+ /*
+ * 030: Map the 32Meg range physical 0x0 upto logical 0xf000.0000
+ */
mmu_map #0xf0000000,#0,#0x02000000,#_PAGE_NOCACHE030
-L(nothp300):
+ jbra L(mmu_init_done)
-#endif
+1:
+ /*
+ * 040: Map the 16Meg range physical 0x0 upto logical 0xf000.0000
+ */
+ mmu_map #0xf0000000,#0,#0x01000000,#_PAGE_NOCACHE_S
+
+ jbra L(mmu_init_done)
+
+L(nothp300):
+#endif /* CONFIG_HP300 */
#ifdef CONFIG_MVME147
#ifdef CONFIG_HP300
is_not_hp300(1f)
/*
- * Fix up the custom register to point to the new location of the LEDs.
+ * Fix up the iobase register to point to the new location of the LEDs.
*/
- movel #0xf0000000,L(custom)
+ movel #0xf0000000,L(iobase)
/*
* Energise the FPU and caches.
*/
+ is_040(1f)
movel #0x60,0xf05f400c
-1:
+ jbra 2f
+
+ /*
+ * 040: slightly different, apparently.
+ */
+1: movew #0,0xf05f400e
+ movew #0x64,0xf05f400e
+2:
#endif
#ifdef CONFIG_SUN3X
movel ARG1,%d0
lea %pc@(_end),%a0
-#ifndef CONFIG_HP300
1: tstw %a0@(BIR_TAG)
jeq 3f
cmpw %a0@(BIR_TAG),%d0
3: moveq #-1,%d0
lea %a0@(BIR_SIZE),%a0
4:
-#endif /* CONFIG_HP300 */
func_return get_bi_record
/* We count on the PROM initializing SIO1 */
#endif
+#ifdef CONFIG_HP300
+/* We count on the boot loader initialising the UART */
+#endif
+
L(serial_init_done):
func_return serial_init
1: moveb %a1@(LSRB0),%d0
andb #0x4,%d0
beq 1b
+ jbra L(serial_putc_done)
2:
#endif
+#ifdef CONFIG_HP300
+ is_not_hp300(3f)
+ movl %pc@(L(iobase)),%a1
+ addl %pc@(L(uartbase)),%a1
+ movel %pc@(L(uart_scode)),%d1 /* Check the scode */
+ jmi 3f /* Unset? Exit */
+ cmpi #256,%d1 /* APCI scode? */
+ jeq 2f
+1: moveb %a1@(DCALSR),%d1 /* Output to DCA */
+ andb #0x20,%d1
+ beq 1b
+ moveb %d0,%a1@(DCADATA)
+ jbra L(serial_putc_done)
+2: moveb %a1@(APCILSR),%d1 /* Output to APCI */
+ andb #0x20,%d1
+ beq 2b
+ moveb %d0,%a1@(APCIDATA)
+ jbra L(serial_putc_done)
+3:
+#endif
+
L(serial_putc_done):
func_return serial_putc
movel ARG1,%d0
#ifdef CONFIG_HP300
is_not_hp300(1f)
- movel %pc@(L(custom)),%a0
+ movel %pc@(L(iobase)),%a0
moveb %d0,%a0@(0x1ffff)
jra 2f
#endif
__INITDATA
.align 4
-#ifdef CONFIG_HP300
-hp300_phys_ram_base:
-#endif
-
#if defined(CONFIG_ATARI) || defined(CONFIG_AMIGA) || \
defined(CONFIG_HP300) || defined(CONFIG_APOLLO)
L(custom):
LCPUCTRL = 0x10100
#endif
+#if defined(CONFIG_HP300)
+DCADATA = 0x11
+DCALSR = 0x1b
+APCIDATA = 0x00
+APCILSR = 0x14
+L(uartbase):
+ .long 0
+L(uart_scode):
+ .long -1
+#endif
+
__FINIT
.data
.align 4
git://git.onelab.eu / linux-2.6.git / blobdiff