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authorRussell King <rmk+kernel@armlinux.org.uk>2019-05-21 15:31:42 +0100
committerRussell King <rmk+kernel@armlinux.org.uk>2019-06-11 17:42:36 +0100
commit12290cc462c24deee503e84e87dea622b40ea15d (patch)
tree845768ee87936136dfb63d3a7cc145b2a51a1fae /arch/arm/mach-rpc/ecard-loader.S
parente579201a832cb796a474ef743d131eff2730cfa7 (diff)
ARM: riscpc: move RiscPC assembly files from arch/arm/lib to mach-rpc
Move the assembly files for RiscPC from arch/arm/lib to mach-rpc so that we contain RiscPC bits in one subdirectory. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/mach-rpc/ecard-loader.S')
-rw-r--r--arch/arm/mach-rpc/ecard-loader.S44
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/arm/mach-rpc/ecard-loader.S b/arch/arm/mach-rpc/ecard-loader.S
new file mode 100644
index 000000000000..e6057fa851bb
--- /dev/null
+++ b/arch/arm/mach-rpc/ecard-loader.S
@@ -0,0 +1,44 @@
+/*
+ * linux/arch/arm/lib/ecard.S
+ *
+ * Copyright (C) 1995, 1996 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 27/03/03 Ian Molton Clean up CONFIG_CPU
+ *
+ */
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+
+#define CPSR2SPSR(rt) \
+ mrs rt, cpsr; \
+ msr spsr_cxsf, rt
+
+@ Purpose: call an expansion card loader to read bytes.
+@ Proto : char read_loader(int offset, char *card_base, char *loader);
+@ Returns: byte read
+
+ENTRY(ecard_loader_read)
+ stmfd sp!, {r4 - r12, lr}
+ mov r11, r1
+ mov r1, r0
+ CPSR2SPSR(r0)
+ mov lr, pc
+ mov pc, r2
+ ldmfd sp!, {r4 - r12, pc}
+
+@ Purpose: call an expansion card loader to reset the card
+@ Proto : void read_loader(int card_base, char *loader);
+@ Returns: byte read
+
+ENTRY(ecard_loader_reset)
+ stmfd sp!, {r4 - r12, lr}
+ mov r11, r0
+ CPSR2SPSR(r0)
+ mov lr, pc
+ add pc, r1, #8
+ ldmfd sp!, {r4 - r12, pc}
+