[ARM] 3635/1: S3C24XX: Add S3C2412 core cpu support

Patch from Ben Dooks

Add support for the Samsung S3C2412 and S3C2413 range
of SoCs. This patch contains the core identification,
debug macros, and basic register updates to get these
to build.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 8 insertions, 2 deletions

diff --git a/include/asm-arm/arch-s3c2410/debug-macro.S b/include/asm-arm/arch-s3c2410/debug-macro.S
index 5f8223e700d3..b7d15d125458 100644
--- a/include/asm-arm/arch-s3c2410/debug-macro.S
+++ b/include/asm-arm/arch-s3c2410/debug-macro.S
@@ -33,7 +33,7 @@
                 .endm
 
                 .macro  senduart,rd,rx
-                str     \rd, [\rx, # S3C2410_UTXH ]
+                strb    \rd, [\rx, # S3C2410_UTXH ]
                 .endm
 
                 .macro  busyuart, rd, rx
@@ -42,6 +42,12 @@
                 beq     1001f                           @
                 @ FIFO enabled...
 1003:
+                @ check for arm920 vs arm926. currently assume all arm926
+                @ devices have an 64 byte FIFO identical to the s3c2440
+                mrc     p15, 0, \rd, c0, c0
+                and     \rd, \rd, #0xff0
+                teq     \rd, #0x260
+                beq     1004f
                 mrc     p15, 0, \rd, c1, c0
                 tst     \rd, #1
                 addeq   \rd, \rx, #(S3C24XX_PA_GPIO - S3C24XX_PA_UART)
@@ -50,7 +56,7 @@
                 ldr     \rd, [ \rd, # S3C2410_GSTATUS1 - S3C2410_GPIOREG(0) ]
                 and     \rd, \rd, #0x00ff0000
                 teq     \rd, #0x00440000                @ is it 2440?
-
+1004:
                 ldr     \rd, [ \rx, # S3C2410_UFSTAT ]
                 moveq   \rd, \rd, lsr #SHIFT_2440TXF
                 tst     \rd, #S3C2410_UFSTAT_TXFULL