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Diffstat (limited to 'arch/arm/mach-s3c/irq-s3c24xx-fiq.S')
-rw-r--r--arch/arm/mach-s3c/irq-s3c24xx-fiq.S112
1 files changed, 0 insertions, 112 deletions
diff --git a/arch/arm/mach-s3c/irq-s3c24xx-fiq.S b/arch/arm/mach-s3c/irq-s3c24xx-fiq.S
deleted file mode 100644
index 5d238d9a798e..000000000000
--- a/arch/arm/mach-s3c/irq-s3c24xx-fiq.S
+++ /dev/null
@@ -1,112 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/* linux/drivers/spi/spi_s3c24xx_fiq.S
- *
- * Copyright 2009 Simtec Electronics
- * Ben Dooks <ben@simtec.co.uk>
- *
- * S3C24XX SPI - FIQ pseudo-DMA transfer code
-*/
-
-#include <linux/linkage.h>
-#include <asm/assembler.h>
-
-#include "map.h"
-#include "regs-irq.h"
-
-#include <linux/spi/s3c24xx-fiq.h>
-
-#define S3C2410_SPTDAT (0x10)
-#define S3C2410_SPRDAT (0x14)
-
- .text
-
- @ entry to these routines is as follows, with the register names
- @ defined in fiq.h so that they can be shared with the C files which
- @ setup the calling registers.
- @
- @ fiq_rirq The base of the IRQ registers to find S3C2410_SRCPND
- @ fiq_rtmp Temporary register to hold tx/rx data
- @ fiq_rspi The base of the SPI register block
- @ fiq_rtx The tx buffer pointer
- @ fiq_rrx The rx buffer pointer
- @ fiq_rcount The number of bytes to move
-
- @ each entry starts with a word entry of how long it is
- @ and an offset to the irq acknowledgment word
-
-ENTRY(s3c24xx_spi_fiq_rx)
- .word fiq_rx_end - fiq_rx_start
- .word fiq_rx_irq_ack - fiq_rx_start
-fiq_rx_start:
- ldr fiq_rtmp, fiq_rx_irq_ack
- str fiq_rtmp, [ fiq_rirq, # S3C2410_SRCPND - S3C24XX_VA_IRQ ]
-
- ldrb fiq_rtmp, [ fiq_rspi, # S3C2410_SPRDAT ]
- strb fiq_rtmp, [ fiq_rrx ], #1
-
- mov fiq_rtmp, #0xff
- strb fiq_rtmp, [ fiq_rspi, # S3C2410_SPTDAT ]
-
- subs fiq_rcount, fiq_rcount, #1
- subsne pc, lr, #4 @@ return, still have work to do
-
- @@ set IRQ controller so that next op will trigger IRQ
- mov fiq_rtmp, #0
- str fiq_rtmp, [ fiq_rirq, # S3C2410_INTMOD - S3C24XX_VA_IRQ ]
- subs pc, lr, #4
-
-fiq_rx_irq_ack:
- .word 0
-fiq_rx_end:
-
-ENTRY(s3c24xx_spi_fiq_txrx)
- .word fiq_txrx_end - fiq_txrx_start
- .word fiq_txrx_irq_ack - fiq_txrx_start
-fiq_txrx_start:
-
- ldrb fiq_rtmp, [ fiq_rspi, # S3C2410_SPRDAT ]
- strb fiq_rtmp, [ fiq_rrx ], #1
-
- ldr fiq_rtmp, fiq_txrx_irq_ack
- str fiq_rtmp, [ fiq_rirq, # S3C2410_SRCPND - S3C24XX_VA_IRQ ]
-
- ldrb fiq_rtmp, [ fiq_rtx ], #1
- strb fiq_rtmp, [ fiq_rspi, # S3C2410_SPTDAT ]
-
- subs fiq_rcount, fiq_rcount, #1
- subsne pc, lr, #4 @@ return, still have work to do
-
- mov fiq_rtmp, #0
- str fiq_rtmp, [ fiq_rirq, # S3C2410_INTMOD - S3C24XX_VA_IRQ ]
- subs pc, lr, #4
-
-fiq_txrx_irq_ack:
- .word 0
-
-fiq_txrx_end:
-
-ENTRY(s3c24xx_spi_fiq_tx)
- .word fiq_tx_end - fiq_tx_start
- .word fiq_tx_irq_ack - fiq_tx_start
-fiq_tx_start:
- ldrb fiq_rtmp, [ fiq_rspi, # S3C2410_SPRDAT ]
-
- ldr fiq_rtmp, fiq_tx_irq_ack
- str fiq_rtmp, [ fiq_rirq, # S3C2410_SRCPND - S3C24XX_VA_IRQ ]
-
- ldrb fiq_rtmp, [ fiq_rtx ], #1
- strb fiq_rtmp, [ fiq_rspi, # S3C2410_SPTDAT ]
-
- subs fiq_rcount, fiq_rcount, #1
- subsne pc, lr, #4 @@ return, still have work to do
-
- mov fiq_rtmp, #0
- str fiq_rtmp, [ fiq_rirq, # S3C2410_INTMOD - S3C24XX_VA_IRQ ]
- subs pc, lr, #4
-
-fiq_tx_irq_ack:
- .word 0
-
-fiq_tx_end:
-
- .end