1 /* arch/arm/mach-s3c2410/include/mach/regs-spi.h
2  *
3  * Copyright (c) 2004 Fetron GmbH
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License version 2 as
7  * published by the Free Software Foundation.
8  *
9  * S3C2410 SPI register definition
10 */
11 
12 #ifndef __ASM_ARCH_REGS_SPI_H
13 #define __ASM_ARCH_REGS_SPI_H
14 
15 #define S3C2410_SPI1	(0x20)
16 #define S3C2412_SPI1	(0x100)
17 
18 #define S3C2410_SPCON	(0x00)
19 
20 #define S3C2412_SPCON_RXFIFO_RB2	(0<<14)
21 #define S3C2412_SPCON_RXFIFO_RB4	(1<<14)
22 #define S3C2412_SPCON_RXFIFO_RB12	(2<<14)
23 #define S3C2412_SPCON_RXFIFO_RB14	(3<<14)
24 #define S3C2412_SPCON_TXFIFO_RB2	(0<<12)
25 #define S3C2412_SPCON_TXFIFO_RB4	(1<<12)
26 #define S3C2412_SPCON_TXFIFO_RB12	(2<<12)
27 #define S3C2412_SPCON_TXFIFO_RB14	(3<<12)
28 #define S3C2412_SPCON_RXFIFO_RESET	(1<<11) /* RxFIFO reset */
29 #define S3C2412_SPCON_TXFIFO_RESET	(1<<10) /* TxFIFO reset */
30 #define S3C2412_SPCON_RXFIFO_EN		(1<<9)  /* RxFIFO Enable */
31 #define S3C2412_SPCON_TXFIFO_EN		(1<<8)  /* TxFIFO Enable */
32 
33 #define S3C2412_SPCON_DIRC_RX	  (1<<7)
34 
35 #define S3C2410_SPCON_SMOD_DMA	  (2<<5)	/* DMA mode */
36 #define S3C2410_SPCON_SMOD_INT	  (1<<5)	/* interrupt mode */
37 #define S3C2410_SPCON_SMOD_POLL   (0<<5)	/* polling mode */
38 #define S3C2410_SPCON_ENSCK	  (1<<4)	/* Enable SCK */
39 #define S3C2410_SPCON_MSTR	  (1<<3)	/* Master/Slave select
40 						   0: slave, 1: master */
41 #define S3C2410_SPCON_CPOL_HIGH	  (1<<2)	/* Clock polarity select */
42 #define S3C2410_SPCON_CPOL_LOW	  (0<<2)	/* Clock polarity select */
43 
44 #define S3C2410_SPCON_CPHA_FMTB	  (1<<1)	/* Clock Phase Select */
45 #define S3C2410_SPCON_CPHA_FMTA	  (0<<1)	/* Clock Phase Select */
46 
47 #define S3C2410_SPCON_TAGD	  (1<<0)	/* Tx auto garbage data mode */
48 
49 
50 #define S3C2410_SPSTA	 (0x04)
51 
52 #define S3C2412_SPSTA_RXFIFO_AE		(1<<11)
53 #define S3C2412_SPSTA_TXFIFO_AE		(1<<10)
54 #define S3C2412_SPSTA_RXFIFO_ERROR	(1<<9)
55 #define S3C2412_SPSTA_TXFIFO_ERROR	(1<<8)
56 #define S3C2412_SPSTA_RXFIFO_FIFO	(1<<7)
57 #define S3C2412_SPSTA_RXFIFO_EMPTY	(1<<6)
58 #define S3C2412_SPSTA_TXFIFO_NFULL	(1<<5)
59 #define S3C2412_SPSTA_TXFIFO_EMPTY	(1<<4)
60 
61 #define S3C2410_SPSTA_DCOL	  (1<<2)	/* Data Collision Error */
62 #define S3C2410_SPSTA_MULD	  (1<<1)	/* Multi Master Error */
63 #define S3C2410_SPSTA_READY	  (1<<0)	/* Data Tx/Rx ready */
64 #define S3C2412_SPSTA_READY_ORG	  (1<<3)
65 
66 #define S3C2410_SPPIN	 (0x08)
67 
68 #define S3C2410_SPPIN_ENMUL	  (1<<2)	/* Multi Master Error detect */
69 #define S3C2410_SPPIN_RESERVED	  (1<<1)
70 #define S3C2400_SPPIN_nCS     	  (1<<1)	/* SPI Card Select */
71 #define S3C2410_SPPIN_KEEP	  (1<<0)	/* Master Out keep */
72 
73 #define S3C2410_SPPRE	 (0x0C)
74 #define S3C2410_SPTDAT	 (0x10)
75 #define S3C2410_SPRDAT	 (0x14)
76 
77 #define S3C2412_TXFIFO	 (0x18)
78 #define S3C2412_RXFIFO	 (0x18)
79 #define S3C2412_SPFIC	 (0x24)
80 
81 
82 #endif /* __ASM_ARCH_REGS_SPI_H */
83