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Diffstat (limited to 'arch/mips/mips-boards/generic/init.c')
-rw-r--r--arch/mips/mips-boards/generic/init.c91
1 files changed, 70 insertions, 21 deletions
diff --git a/arch/mips/mips-boards/generic/init.c b/arch/mips/mips-boards/generic/init.c
index 311155d1d3e..eab5a705e98 100644
--- a/arch/mips/mips-boards/generic/init.c
+++ b/arch/mips/mips-boards/generic/init.c
@@ -1,6 +1,8 @@
/*
- * Carsten Langgaard, carstenl@mips.com
- * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved.
+ * Copyright (C) 1999, 2000, 2004, 2005 MIPS Technologies, Inc.
+ * All rights reserved.
+ * Authors: Carsten Langgaard <carstenl@mips.com>
+ * Maciej W. Rozycki <macro@mips.com>
*
* This program is free software; you can distribute it and/or modify it
* under the terms of the GNU General Public License (Version 2) as
@@ -22,18 +24,19 @@
#include <linux/string.h>
#include <linux/kernel.h>
-#include <asm/io.h>
#include <asm/bootinfo.h>
+#include <asm/gt64120.h>
+#include <asm/io.h>
+#include <asm/system.h>
+#include <asm/cacheflush.h>
+#include <asm/traps.h>
+
#include <asm/mips-boards/prom.h>
#include <asm/mips-boards/generic.h>
-#ifdef CONFIG_MIPS_GT64120
-#include <asm/gt64120.h>
-#endif
-#include <asm/mips-boards/msc01_pci.h>
#include <asm/mips-boards/bonito64.h>
-#ifdef CONFIG_MIPS_MALTA
+#include <asm/mips-boards/msc01_pci.h>
+
#include <asm/mips-boards/malta.h>
-#endif
#ifdef CONFIG_KGDB
extern int rs_kgdb_hook(int, int);
@@ -223,8 +226,34 @@ void __init kgdb_config (void)
}
#endif
+void __init mips_nmi_setup (void)
+{
+ void *base;
+ extern char except_vec_nmi;
+
+ base = cpu_has_veic ?
+ (void *)(CAC_BASE + 0xa80) :
+ (void *)(CAC_BASE + 0x380);
+ memcpy(base, &except_vec_nmi, 0x80);
+ flush_icache_range((unsigned long)base, (unsigned long)base + 0x80);
+}
+
+void __init mips_ejtag_setup (void)
+{
+ void *base;
+ extern char except_vec_ejtag_debug;
+
+ base = cpu_has_veic ?
+ (void *)(CAC_BASE + 0xa00) :
+ (void *)(CAC_BASE + 0x300);
+ memcpy(base, &except_vec_ejtag_debug, 0x80);
+ flush_icache_range((unsigned long)base, (unsigned long)base + 0x80);
+}
+
void __init prom_init(void)
{
+ u32 start, map, mask, data;
+
prom_argc = fw_arg0;
_prom_argv = (int *) fw_arg1;
_prom_envp = (int *) fw_arg2;
@@ -266,12 +295,15 @@ void __init prom_init(void)
#else
GT_WRITE(GT_PCI0_CMD_OFS, 0);
#endif
+ /* Fix up PCI I/O mapping if necessary (for Atlas). */
+ start = GT_READ(GT_PCI0IOLD_OFS);
+ map = GT_READ(GT_PCI0IOREMAP_OFS);
+ if ((start & map) != 0) {
+ map &= ~start;
+ GT_WRITE(GT_PCI0IOREMAP_OFS, map);
+ }
-#ifdef CONFIG_MIPS_MALTA
set_io_port_base(MALTA_GT_PORT_BASE);
-#else
- set_io_port_base((unsigned long)ioremap(0, 0x20000000));
-#endif
break;
case MIPS_REVISION_CORID_CORE_EMUL_BON:
@@ -300,18 +332,21 @@ void __init prom_init(void)
BONITO_BONGENCFG_BYTESWAP;
#endif
-#ifdef CONFIG_MIPS_MALTA
set_io_port_base(MALTA_BONITO_PORT_BASE);
-#else
- set_io_port_base((unsigned long)ioremap(0, 0x20000000));
-#endif
break;
case MIPS_REVISION_CORID_CORE_MSC:
case MIPS_REVISION_CORID_CORE_FPGA2:
+ case MIPS_REVISION_CORID_CORE_FPGA3:
case MIPS_REVISION_CORID_CORE_EMUL_MSC:
_pcictrl_msc = (unsigned long)ioremap(MIPS_MSC01_PCI_REG_BASE, 0x2000);
+ mb();
+ MSC_READ(MSC01_PCI_CFG, data);
+ MSC_WRITE(MSC01_PCI_CFG, data & ~MSC01_PCI_CFG_EN_BIT);
+ wmb();
+
+ /* Fix up lane swapping. */
#ifdef CONFIG_CPU_LITTLE_ENDIAN
MSC_WRITE(MSC01_PCI_SWAP, MSC01_PCI_SWAP_NOSWAP);
#else
@@ -320,12 +355,23 @@ void __init prom_init(void)
MSC01_PCI_SWAP_BYTESWAP << MSC01_PCI_SWAP_MEM_SHF |
MSC01_PCI_SWAP_BYTESWAP << MSC01_PCI_SWAP_BAR0_SHF);
#endif
+ /* Fix up target memory mapping. */
+ MSC_READ(MSC01_PCI_BAR0, mask);
+ MSC_WRITE(MSC01_PCI_P2SCMSKL, mask & MSC01_PCI_BAR0_SIZE_MSK);
+
+ /* Don't handle target retries indefinitely. */
+ if ((data & MSC01_PCI_CFG_MAXRTRY_MSK) ==
+ MSC01_PCI_CFG_MAXRTRY_MSK)
+ data = (data & ~(MSC01_PCI_CFG_MAXRTRY_MSK <<
+ MSC01_PCI_CFG_MAXRTRY_SHF)) |
+ ((MSC01_PCI_CFG_MAXRTRY_MSK - 1) <<
+ MSC01_PCI_CFG_MAXRTRY_SHF);
+
+ wmb();
+ MSC_WRITE(MSC01_PCI_CFG, data);
+ mb();
-#ifdef CONFIG_MIPS_MALTA
set_io_port_base(MALTA_MSC_PORT_BASE);
-#else
- set_io_port_base((unsigned long)ioremap(0, 0x20000000));
-#endif
break;
default:
@@ -334,6 +380,9 @@ void __init prom_init(void)
while(1); /* We die here... */
}
#endif
+ board_nmi_handler_setup = mips_nmi_setup;
+ board_ejtag_handler_setup = mips_ejtag_setup;
+
prom_printf("\nLINUX started...\n");
prom_init_cmdline();
prom_meminit();