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-rw-r--r--arch/mips/fw/arc/Makefile6
-rw-r--r--arch/mips/fw/arc/cmdline.c16
-rw-r--r--arch/mips/fw/arc/env.c6
-rw-r--r--arch/mips/fw/arc/file.c49
-rw-r--r--arch/mips/fw/arc/identify.c15
-rw-r--r--arch/mips/fw/arc/init.c20
-rw-r--r--arch/mips/fw/arc/memory.c9
-rw-r--r--arch/mips/fw/arc/misc.c59
-rw-r--r--arch/mips/fw/arc/promlib.c25
-rw-r--r--arch/mips/fw/arc/salone.c25
-rw-r--r--arch/mips/fw/arc/time.c25
-rw-r--r--arch/mips/fw/arc/tree.c127
12 files changed, 57 insertions, 325 deletions
diff --git a/arch/mips/fw/arc/Makefile b/arch/mips/fw/arc/Makefile
index 31dd7305d643..64d685efcc77 100644
--- a/arch/mips/fw/arc/Makefile
+++ b/arch/mips/fw/arc/Makefile
@@ -3,8 +3,12 @@
# Makefile for the ARC prom monitor library routines under Linux.
#
+ifdef CONFIG_ARC_CMDLINE_ONLY
+lib-y += cmdline.o
+else
lib-y += cmdline.o env.o file.o identify.o init.o \
- misc.o salone.o time.o tree.o
+ misc.o
+endif
lib-$(CONFIG_ARC_MEMORY) += memory.o
lib-$(CONFIG_ARC_CONSOLE) += arc_con.o
diff --git a/arch/mips/fw/arc/cmdline.c b/arch/mips/fw/arc/cmdline.c
index c0122a1dc587..155c5e911723 100644
--- a/arch/mips/fw/arc/cmdline.c
+++ b/arch/mips/fw/arc/cmdline.c
@@ -17,6 +17,12 @@
#undef DEBUG_CMDLINE
+/*
+ * A 32-bit ARC PROM pass arguments and environment as 32-bit pointer.
+ * These macro take care of sign extension.
+ */
+#define prom_argv(index) ((char *) (long)argv[(index)])
+
static char *ignored[] = {
"ConsoleIn=",
"ConsoleOut=",
@@ -32,14 +38,14 @@ static char *used_arc[][2] = {
{ "OSLoadOptions=", "" }
};
-static char * __init move_firmware_args(char* cp)
+static char __init *move_firmware_args(int argc, LONG *argv, char *cp)
{
char *s;
int actr, i;
actr = 1; /* Always ignore argv[0] */
- while (actr < prom_argc) {
+ while (actr < argc) {
for(i = 0; i < ARRAY_SIZE(used_arc); i++) {
int len = strlen(used_arc[i][0]);
@@ -64,7 +70,7 @@ static char * __init move_firmware_args(char* cp)
return cp;
}
-void __init prom_init_cmdline(void)
+void __init prom_init_cmdline(int argc, LONG *argv)
{
char *cp;
int actr, i;
@@ -76,9 +82,9 @@ void __init prom_init_cmdline(void)
* Move ARC variables to the beginning to make sure they can be
* overridden by later arguments.
*/
- cp = move_firmware_args(cp);
+ cp = move_firmware_args(argc, argv, cp);
- while (actr < prom_argc) {
+ while (actr < argc) {
for (i = 0; i < ARRAY_SIZE(ignored); i++) {
int len = strlen(ignored[i]);
diff --git a/arch/mips/fw/arc/env.c b/arch/mips/fw/arc/env.c
index 1118a26b32ee..02407a7bb38e 100644
--- a/arch/mips/fw/arc/env.c
+++ b/arch/mips/fw/arc/env.c
@@ -19,9 +19,3 @@ ArcGetEnvironmentVariable(CHAR *name)
{
return (CHAR *) ARC_CALL1(get_evar, name);
}
-
-LONG __init
-ArcSetEnvironmentVariable(PCHAR name, PCHAR value)
-{
- return ARC_CALL2(set_evar, name, value);
-}
diff --git a/arch/mips/fw/arc/file.c b/arch/mips/fw/arc/file.c
index 49fd3ff13fe5..b0d8535c80cc 100644
--- a/arch/mips/fw/arc/file.c
+++ b/arch/mips/fw/arc/file.c
@@ -13,62 +13,13 @@
#include <asm/sgialib.h>
LONG
-ArcGetDirectoryEntry(ULONG FileID, struct linux_vdirent *Buffer,
- ULONG N, ULONG *Count)
-{
- return ARC_CALL4(get_vdirent, FileID, Buffer, N, Count);
-}
-
-LONG
-ArcOpen(CHAR *Path, enum linux_omode OpenMode, ULONG *FileID)
-{
- return ARC_CALL3(open, Path, OpenMode, FileID);
-}
-
-LONG
-ArcClose(ULONG FileID)
-{
- return ARC_CALL1(close, FileID);
-}
-
-LONG
ArcRead(ULONG FileID, VOID *Buffer, ULONG N, ULONG *Count)
{
return ARC_CALL4(read, FileID, Buffer, N, Count);
}
LONG
-ArcGetReadStatus(ULONG FileID)
-{
- return ARC_CALL1(get_rstatus, FileID);
-}
-
-LONG
ArcWrite(ULONG FileID, PVOID Buffer, ULONG N, PULONG Count)
{
return ARC_CALL4(write, FileID, Buffer, N, Count);
}
-
-LONG
-ArcSeek(ULONG FileID, struct linux_bigint *Position, enum linux_seekmode SeekMode)
-{
- return ARC_CALL3(seek, FileID, Position, SeekMode);
-}
-
-LONG
-ArcMount(char *name, enum linux_mountops op)
-{
- return ARC_CALL2(mount, name, op);
-}
-
-LONG
-ArcGetFileInformation(ULONG FileID, struct linux_finfo *Information)
-{
- return ARC_CALL2(get_finfo, FileID, Information);
-}
-
-LONG ArcSetFileInformation(ULONG FileID, ULONG AttributeFlags,
- ULONG AttributeMask)
-{
- return ARC_CALL3(set_finfo, FileID, AttributeFlags, AttributeMask);
-}
diff --git a/arch/mips/fw/arc/identify.c b/arch/mips/fw/arc/identify.c
index f90266c02c9d..5527e0f54079 100644
--- a/arch/mips/fw/arc/identify.c
+++ b/arch/mips/fw/arc/identify.c
@@ -32,10 +32,6 @@ static struct smatch mach_table[] = {
.liname = "SGI Indy",
.flags = PROM_FLAG_ARCS,
}, {
- .arcname = "SGI-IP27",
- .liname = "SGI Origin",
- .flags = PROM_FLAG_ARCS,
- }, {
.arcname = "SGI-IP28",
.liname = "SGI IP28",
.flags = PROM_FLAG_ARCS,
@@ -87,6 +83,11 @@ const char *get_system_type(void)
return system_type;
}
+static pcomponent * __init ArcGetChild(pcomponent *Current)
+{
+ return (pcomponent *) ARC_CALL1(child_component, Current);
+}
+
void __init prom_identify_arch(void)
{
pcomponent *p;
@@ -98,13 +99,7 @@ void __init prom_identify_arch(void)
*/
p = ArcGetChild(PROM_NULL_COMPONENT);
if (p == NULL) {
-#ifdef CONFIG_SGI_IP27
- /* IP27 PROM misbehaves, seems to not implement ARC
- GetChild(). So we just assume it's an IP27. */
- iname = "SGI-IP27";
-#else
iname = "Unknown";
-#endif
} else
iname = (char *) (long) p->iname;
diff --git a/arch/mips/fw/arc/init.c b/arch/mips/fw/arc/init.c
index 008555969534..f9d1dea9b2ca 100644
--- a/arch/mips/fw/arc/init.c
+++ b/arch/mips/fw/arc/init.c
@@ -18,8 +18,11 @@
/* Master romvec interface. */
struct linux_romvec *romvec;
-int prom_argc;
-LONG *_prom_argv, *_prom_envp;
+
+#if defined(CONFIG_64BIT) && defined(CONFIG_FW_ARC32)
+/* stack for calling 32bit ARC prom */
+u64 o32_stk[4096];
+#endif
void __init prom_init(void)
{
@@ -27,10 +30,6 @@ void __init prom_init(void)
romvec = ROMVECTOR;
- prom_argc = fw_arg0;
- _prom_argv = (LONG *) fw_arg1;
- _prom_envp = (LONG *) fw_arg2;
-
if (pb->magic != 0x53435241) {
printk(KERN_CRIT "Aieee, bad prom vector magic %08lx\n",
(unsigned long) pb->magic);
@@ -38,7 +37,7 @@ void __init prom_init(void)
;
}
- prom_init_cmdline();
+ prom_init_cmdline(fw_arg0, (LONG *)fw_arg1);
prom_identify_arch();
printk(KERN_INFO "PROMLIB: ARC firmware Version %d Revision %d\n",
pb->ver, pb->rev);
@@ -49,11 +48,4 @@ void __init prom_init(void)
ArcRead(0, &c, 1, &cnt);
ArcEnterInteractiveMode();
#endif
-#ifdef CONFIG_SGI_IP27
- {
- extern const struct plat_smp_ops ip27_smp_ops;
-
- register_smp_ops(&ip27_smp_ops);
- }
-#endif
}
diff --git a/arch/mips/fw/arc/memory.c b/arch/mips/fw/arc/memory.c
index b4328b3b5288..dbbcddc82823 100644
--- a/arch/mips/fw/arc/memory.c
+++ b/arch/mips/fw/arc/memory.c
@@ -158,6 +158,10 @@ void __init prom_meminit(void)
}
}
+void __weak __init prom_cleanup(void)
+{
+}
+
void __init prom_free_prom_memory(void)
{
int i;
@@ -169,4 +173,9 @@ void __init prom_free_prom_memory(void)
free_init_pages("prom memory",
prom_mem_base[i], prom_mem_base[i] + prom_mem_size[i]);
}
+ /*
+ * at this point it isn't safe to call PROM functions
+ * give platforms a way to do PROM cleanups
+ */
+ prom_cleanup();
}
diff --git a/arch/mips/fw/arc/misc.c b/arch/mips/fw/arc/misc.c
index 19f710117d97..d5b2d5901324 100644
--- a/arch/mips/fw/arc/misc.c
+++ b/arch/mips/fw/arc/misc.c
@@ -21,47 +21,6 @@
#include <asm/bootinfo.h>
VOID __noreturn
-ArcHalt(VOID)
-{
- bc_disable();
- local_irq_disable();
- ARC_CALL0(halt);
-
- unreachable();
-}
-
-VOID __noreturn
-ArcPowerDown(VOID)
-{
- bc_disable();
- local_irq_disable();
- ARC_CALL0(pdown);
-
- unreachable();
-}
-
-/* XXX is this a soft reset basically? XXX */
-VOID __noreturn
-ArcRestart(VOID)
-{
- bc_disable();
- local_irq_disable();
- ARC_CALL0(restart);
-
- unreachable();
-}
-
-VOID __noreturn
-ArcReboot(VOID)
-{
- bc_disable();
- local_irq_disable();
- ARC_CALL0(reboot);
-
- unreachable();
-}
-
-VOID __noreturn
ArcEnterInteractiveMode(VOID)
{
bc_disable();
@@ -71,24 +30,6 @@ ArcEnterInteractiveMode(VOID)
unreachable();
}
-LONG
-ArcSaveConfiguration(VOID)
-{
- return ARC_CALL0(cfg_save);
-}
-
-struct linux_sysid *
-ArcGetSystemId(VOID)
-{
- return (struct linux_sysid *) ARC_CALL0(get_sysid);
-}
-
-VOID __init
-ArcFlushAllCaches(VOID)
-{
- ARC_CALL0(cache_flush);
-}
-
DISPLAY_STATUS * __init ArcGetDisplayStatus(ULONG FileID)
{
return (DISPLAY_STATUS *) ARC_CALL1(GetDisplayStatus, FileID);
diff --git a/arch/mips/fw/arc/promlib.c b/arch/mips/fw/arc/promlib.c
index be381307fbb0..5e9e840a9314 100644
--- a/arch/mips/fw/arc/promlib.c
+++ b/arch/mips/fw/arc/promlib.c
@@ -11,6 +11,21 @@
#include <asm/bcache.h>
#include <asm/setup.h>
+#if defined(CONFIG_64BIT) && defined(CONFIG_FW_ARC32)
+/*
+ * For 64bit kernels working with a 32bit ARC PROM pointer arguments
+ * for ARC calls need to reside in CKEG0/1. But as soon as the kernel
+ * switches to it's first kernel thread stack is set to an address in
+ * XKPHYS, so anything on stack can't be used anymore. This is solved
+ * by using a * static declartion variables are put into BSS, which is
+ * linked to a CKSEG0 address. Since this is only used on UP platforms
+ * there is not spinlock needed
+ */
+#define O32_STATIC static
+#else
+#define O32_STATIC
+#endif
+
/*
* IP22 boardcache is not compatible with board caches. Thus we disable it
* during romvec action. Since r4xx0.c is always compiled and linked with your
@@ -23,8 +38,10 @@
void prom_putchar(char c)
{
- ULONG cnt;
- CHAR it = c;
+ O32_STATIC ULONG cnt;
+ O32_STATIC CHAR it;
+
+ it = c;
bc_disable();
ArcWrite(1, &it, 1, &cnt);
@@ -33,8 +50,8 @@ void prom_putchar(char c)
char prom_getchar(void)
{
- ULONG cnt;
- CHAR c;
+ O32_STATIC ULONG cnt;
+ O32_STATIC CHAR c;
bc_disable();
ArcRead(0, &c, 1, &cnt);
diff --git a/arch/mips/fw/arc/salone.c b/arch/mips/fw/arc/salone.c
deleted file mode 100644
index 2d99f44d5576..000000000000
--- a/arch/mips/fw/arc/salone.c
+++ /dev/null
@@ -1,25 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Routines to load into memory and execute stand-along program images using
- * ARCS PROM firmware.
- *
- * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
- */
-#include <linux/init.h>
-#include <asm/sgialib.h>
-
-LONG __init ArcLoad(CHAR *Path, ULONG TopAddr, ULONG *ExecAddr, ULONG *LowAddr)
-{
- return ARC_CALL4(load, Path, TopAddr, ExecAddr, LowAddr);
-}
-
-LONG __init ArcInvoke(ULONG ExecAddr, ULONG StackAddr, ULONG Argc, CHAR *Argv[],
- CHAR *Envp[])
-{
- return ARC_CALL5(invoke, ExecAddr, StackAddr, Argc, Argv, Envp);
-}
-
-LONG __init ArcExecute(CHAR *Path, LONG Argc, CHAR *Argv[], CHAR *Envp[])
-{
- return ARC_CALL4(exec, Path, Argc, Argv, Envp);
-}
diff --git a/arch/mips/fw/arc/time.c b/arch/mips/fw/arc/time.c
deleted file mode 100644
index 190cdb50b895..000000000000
--- a/arch/mips/fw/arc/time.c
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Extracting time information from ARCS prom.
- *
- * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
- */
-#include <linux/init.h>
-
-#include <asm/fw/arc/types.h>
-#include <asm/sgialib.h>
-
-struct linux_tinfo * __init
-ArcGetTime(VOID)
-{
- return (struct linux_tinfo *) ARC_CALL0(get_tinfo);
-}
-
-ULONG __init
-ArcGetRelativeTime(VOID)
-{
- return ARC_CALL0(get_rtime);
-}
diff --git a/arch/mips/fw/arc/tree.c b/arch/mips/fw/arc/tree.c
deleted file mode 100644
index 924a37dc2569..000000000000
--- a/arch/mips/fw/arc/tree.c
+++ /dev/null
@@ -1,127 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * PROM component device tree code.
- *
- * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
- * Copyright (C) 1999 Ralf Baechle (ralf@gnu.org)
- * Copyright (C) 1999 Silicon Graphics, Inc.
- */
-#include <linux/init.h>
-#include <asm/fw/arc/types.h>
-#include <asm/sgialib.h>
-
-#undef DEBUG_PROM_TREE
-
-pcomponent * __init
-ArcGetPeer(pcomponent *Current)
-{
- if (Current == PROM_NULL_COMPONENT)
- return PROM_NULL_COMPONENT;
-
- return (pcomponent *) ARC_CALL1(next_component, Current);
-}
-
-pcomponent * __init
-ArcGetChild(pcomponent *Current)
-{
- return (pcomponent *) ARC_CALL1(child_component, Current);
-}
-
-pcomponent * __init
-ArcGetParent(pcomponent *Current)
-{
- if (Current == PROM_NULL_COMPONENT)
- return PROM_NULL_COMPONENT;
-
- return (pcomponent *) ARC_CALL1(parent_component, Current);
-}
-
-LONG __init
-ArcGetConfigurationData(VOID *Buffer, pcomponent *Current)
-{
- return ARC_CALL2(component_data, Buffer, Current);
-}
-
-pcomponent * __init
-ArcAddChild(pcomponent *Current, pcomponent *Template, VOID *ConfigurationData)
-{
- return (pcomponent *)
- ARC_CALL3(child_add, Current, Template, ConfigurationData);
-}
-
-LONG __init
-ArcDeleteComponent(pcomponent *ComponentToDelete)
-{
- return ARC_CALL1(comp_del, ComponentToDelete);
-}
-
-pcomponent * __init
-ArcGetComponent(CHAR *Path)
-{
- return (pcomponent *)ARC_CALL1(component_by_path, Path);
-}
-
-#ifdef DEBUG_PROM_TREE
-
-static char *classes[] = {
- "system", "processor", "cache", "adapter", "controller", "peripheral",
- "memory"
-};
-
-static char *types[] = {
- "arc", "cpu", "fpu", "picache", "pdcache", "sicache", "sdcache",
- "sccache", "memdev", "eisa adapter", "tc adapter", "scsi adapter",
- "dti adapter", "multi-func adapter", "disk controller",
- "tp controller", "cdrom controller", "worm controller",
- "serial controller", "net controller", "display controller",
- "parallel controller", "pointer controller", "keyboard controller",
- "audio controller", "misc controller", "disk peripheral",
- "floppy peripheral", "tp peripheral", "modem peripheral",
- "monitor peripheral", "printer peripheral", "pointer peripheral",
- "keyboard peripheral", "terminal peripheral", "line peripheral",
- "net peripheral", "misc peripheral", "anonymous"
-};
-
-static char *iflags[] = {
- "bogus", "read only", "removable", "console in", "console out",
- "input", "output"
-};
-
-static void __init
-dump_component(pcomponent *p)
-{
- printk("[%p]:class<%s>type<%s>flags<%s>ver<%d>rev<%d>",
- p, classes[p->class], types[p->type],
- iflags[p->iflags], p->vers, p->rev);
- printk("key<%08lx>\n\tamask<%08lx>cdsize<%d>ilen<%d>iname<%s>\n",
- p->key, p->amask, (int)p->cdsize, (int)p->ilen, p->iname);
-}
-
-static void __init
-traverse(pcomponent *p, int op)
-{
- dump_component(p);
- if(ArcGetChild(p))
- traverse(ArcGetChild(p), 1);
- if(ArcGetPeer(p) && op)
- traverse(ArcGetPeer(p), 1);
-}
-
-void __init
-prom_testtree(void)
-{
- pcomponent *p;
-
- p = ArcGetChild(PROM_NULL_COMPONENT);
- dump_component(p);
- p = ArcGetChild(p);
- while(p) {
- dump_component(p);
- p = ArcGetPeer(p);
- }
-}
-
-#endif /* DEBUG_PROM_TREE */