Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 145 insertions, 0 deletions

diff --git a/drivers/scsi/arm/acornscsi-io.S b/drivers/scsi/arm/acornscsi-io.S
new file mode 100644
index 00000000000..93467e6ac92
--- /dev/null
+++ b/drivers/scsi/arm/acornscsi-io.S
@@ -0,0 +1,145 @@
+/*
+ *  linux/drivers/acorn/scsi/acornscsi-io.S: Acorn SCSI card IO
+ *
+ * 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.
+ */
+#include <linux/linkage.h>
+
+#include <asm/assembler.h>
+#include <asm/hardware.h>
+
+#if (IO_BASE == (PCIO_BASE & 0xff000000))
+#define ADDR(off,reg)                                           \
+                tst     off, $0x80000000                        ;\
+                mov     reg, $IO_BASE                           ;\
+                orreq   reg, reg, $(PCIO_BASE & 0x00ff0000)
+#else
+#define ADDR(off,reg)                                           \
+                tst     off, $0x80000000                        ;\
+                movne   reg, $IO_BASE                           ;\
+                moveq   reg, $(PCIO_BASE & 0xff000000)          ;\
+                orreq   reg, reg, $(PCIO_BASE & 0x00ff0000)
+#endif
+
+@ Purpose: transfer a block of data from the acorn scsi card to memory
+@ Proto  : void acornscsi_in(unsigned int addr_start, char *buffer, int length)
+@ Returns: nothing
+
+                .align
+ENTRY(__acornscsi_in)
+                stmfd   sp!, {r4 - r7, lr}
+                bic     r0, r0, #3
+                mov     lr, #0xff
+                orr     lr, lr, #0xff00
+acornscsi_in16lp:
+                subs    r2, r2, #16
+                bmi     acornscsi_in8
+                ldmia   r0!, {r3, r4, r5, r6}
+                and     r3, r3, lr
+                orr     r3, r3, r4, lsl #16
+                and     r4, r5, lr
+                orr     r4, r4, r6, lsl #16
+                ldmia   r0!, {r5, r6, r7, ip}
+                and     r5, r5, lr
+                orr     r5, r5, r6, lsl #16
+                and     r6, r7, lr
+                orr     r6, r6, ip, lsl #16
+                stmia   r1!, {r3 - r6}
+                bne     acornscsi_in16lp
+                LOADREGS(fd, sp!, {r4 - r7, pc})
+
+acornscsi_in8:  adds    r2, r2, #8
+                bmi     acornscsi_in4
+                ldmia   r0!, {r3, r4, r5, r6}
+                and     r3, r3, lr
+                orr     r3, r3, r4, lsl #16
+                and     r4, r5, lr
+                orr     r4, r4, r6, lsl #16
+                stmia   r1!, {r3 - r4}
+                LOADREGS(eqfd, sp!, {r4 - r7, pc})
+                sub     r2, r2, #8
+
+acornscsi_in4:  adds    r2, r2, #4
+                bmi     acornscsi_in2
+                ldmia   r0!, {r3, r4}
+                and     r3, r3, lr
+                orr     r3, r3, r4, lsl #16
+                str     r3, [r1], #4
+                LOADREGS(eqfd, sp!, {r4 - r7, pc})
+                sub     r2, r2, #4
+
+acornscsi_in2:  adds    r2, r2, #2
+                ldr     r3, [r0], #4
+                and     r3, r3, lr
+                strb    r3, [r1], #1
+                mov     r3, r3, lsr #8
+                strplb  r3, [r1], #1
+                LOADREGS(fd, sp!, {r4 - r7, pc})
+
+@ Purpose: transfer a block of data from memory to the acorn scsi card
+@ Proto  : void acornscsi_in(unsigned int addr_start, char *buffer, int length)
+@ Returns: nothing
+
+ENTRY(__acornscsi_out)
+                stmfd   sp!, {r4 - r6, lr}
+                bic     r0, r0, #3
+acornscsi_out16lp:
+                subs    r2, r2, #16
+                bmi     acornscsi_out8
+                ldmia   r1!, {r4, r6, ip, lr}
+                mov     r3, r4, lsl #16
+                orr     r3, r3, r3, lsr #16
+                mov     r4, r4, lsr #16
+                orr     r4, r4, r4, lsl #16
+                mov     r5, r6, lsl #16
+                orr     r5, r5, r5, lsr #16
+                mov     r6, r6, lsr #16
+                orr     r6, r6, r6, lsl #16
+                stmia   r0!, {r3, r4, r5, r6}
+                mov     r3, ip, lsl #16
+                orr     r3, r3, r3, lsr #16
+                mov     r4, ip, lsr #16
+                orr     r4, r4, r4, lsl #16
+                mov     ip, lr, lsl #16
+                orr     ip, ip, ip, lsr #16
+                mov     lr, lr, lsr #16
+                orr     lr, lr, lr, lsl #16
+                stmia   r0!, {r3, r4, ip, lr}
+                bne     acornscsi_out16lp
+                LOADREGS(fd, sp!, {r4 - r6, pc})
+
+acornscsi_out8: adds    r2, r2, #8
+                bmi     acornscsi_out4
+                ldmia   r1!, {r4, r6}
+                mov     r3, r4, lsl #16
+                orr     r3, r3, r3, lsr #16
+                mov     r4, r4, lsr #16
+                orr     r4, r4, r4, lsl #16
+                mov     r5, r6, lsl #16
+                orr     r5, r5, r5, lsr #16
+                mov     r6, r6, lsr #16
+                orr     r6, r6, r6, lsl #16
+                stmia   r0!, {r3, r4, r5, r6}
+                LOADREGS(eqfd, sp!, {r4 - r6, pc})
+
+                sub     r2, r2, #8
+acornscsi_out4: adds    r2, r2, #4
+                bmi     acornscsi_out2
+                ldr     r4, [r1], #4
+                mov     r3, r4, lsl #16
+                orr     r3, r3, r3, lsr #16
+                mov     r4, r4, lsr #16
+                orr     r4, r4, r4, lsl #16
+                stmia   r0!, {r3, r4}
+                LOADREGS(eqfd, sp!, {r4 - r6, pc})
+
+                sub     r2, r2, #4
+acornscsi_out2: adds    r2, r2, #2
+                ldr     r3, [r1], #2
+                strb    r3, [r0], #1
+                mov     r3, r3, lsr #8
+                strplb  r3, [r0], #1
+                LOADREGS(fd, sp!, {r4 - r6, pc})
+