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[ARM] 4517/1: S3C: Fix debug macros for ARM926 output
Check for ARM926 based S3C24XX based devices as these
only have 64 byte FIFOs, and do not have the model
detection refisters in the same place as the ARM920
based CPUs
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
authored by Ben Dooks and committed by Russell King 1197b4cd 5c49218a
+7
include/asm-arm/arch-s3c2410/debug-macro.S
+7
include/asm-arm/arch-s3c2410/debug-macro.S
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/* fifo level reading */
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.macro fifo_level_s3c24xx rd, rx
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@ check for arm920 vs arm926. currently assume all arm926
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@ devices have an 64 byte FIFO identical to the s3c2440
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mrc p15, 0, \rd, c0, c0
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and \rd, \rd, #0xff0
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teq \rd, #0x260
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beq 10000f
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mrc p15, 0, \rd, c1, c0
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tst \rd, #1
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addeq \rd, \rx, #(S3C24XX_PA_GPIO - S3C24XX_PA_UART)
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and \rd, \rd, #0x00ff0000
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teq \rd, #0x00440000 @ is it 2440?
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10000:
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ldr \rd, [ \rx, # S3C2410_UFSTAT ]
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andne \rd, \rd, #S3C2410_UFSTAT_TXMASK
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andeq \rd, \rd, #S3C2440_UFSTAT_TXMASK