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| author | Andreas Bießmann <biessmann@corscience.de> | 2010-09-03 10:28:05 +0200 |
|---|---|---|
| committer | Reinhard Meyer <u-boot@emk-elektronik.de> | 2010-10-05 16:58:56 +0200 |
| commit | 125637c57265de980bd0d8e7d35f4b9c3d5264e1 (patch) | |
| tree | c32715a2204d7777484b4905a84de3f436175f89 /drivers/serial/atmel_usart.h | |
| parent | b944ad22b45cf46242451286e1c711f8e39b9003 (diff) | |
| download | u-boot-imx-125637c57265de980bd0d8e7d35f4b9c3d5264e1.zip u-boot-imx-125637c57265de980bd0d8e7d35f4b9c3d5264e1.tar.gz u-boot-imx-125637c57265de980bd0d8e7d35f4b9c3d5264e1.tar.bz2 | |
atmel_usart: change register access to C structure
This patch introduces C structure definition for register footprint of atmel's
usart.
Signed-off-by: Andreas Bießmann <biessmann@corscience.de>
Diffstat (limited to 'drivers/serial/atmel_usart.h')
| -rw-r--r-- | drivers/serial/atmel_usart.h | 56 |
1 files changed, 24 insertions, 32 deletions
diff --git a/drivers/serial/atmel_usart.h b/drivers/serial/atmel_usart.h index af3773a..7cfc2d5 100644 --- a/drivers/serial/atmel_usart.h +++ b/drivers/serial/atmel_usart.h @@ -3,6 +3,9 @@ * * Copyright (C) 2005-2006 Atmel Corporation * + * Modified to support C structure SoC access by + * Andreas Bießmann <biessmann@corscience.de> + * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or @@ -20,32 +23,27 @@ #ifndef __DRIVERS_ATMEL_USART_H__ #define __DRIVERS_ATMEL_USART_H__ -/* USART3 register offsets */ -#define USART3_CR 0x0000 -#define USART3_MR 0x0004 -#define USART3_IER 0x0008 -#define USART3_IDR 0x000c -#define USART3_IMR 0x0010 -#define USART3_CSR 0x0014 -#define USART3_RHR 0x0018 -#define USART3_THR 0x001c -#define USART3_BRGR 0x0020 -#define USART3_RTOR 0x0024 -#define USART3_TTGR 0x0028 -#define USART3_FIDI 0x0040 -#define USART3_NER 0x0044 -#define USART3_XXR 0x0048 -#define USART3_IFR 0x004c -#define USART3_RPR 0x0100 -#define USART3_RCR 0x0104 -#define USART3_TPR 0x0108 -#define USART3_TCR 0x010c -#define USART3_RNPR 0x0110 -#define USART3_RNCR 0x0114 -#define USART3_TNPR 0x0118 -#define USART3_TNCR 0x011c -#define USART3_PTCR 0x0120 -#define USART3_PTSR 0x0124 +/* USART3 register footprint */ +typedef struct atmel_usart3 { + u32 cr; + u32 mr; + u32 ier; + u32 idr; + u32 imr; + u32 csr; + u32 rhr; + u32 thr; + u32 brgr; + u32 rtor; + u32 ttgr; + u32 reserved0[5]; + u32 fidi; + u32 ner; + u32 reserved1; + u32 ifr; + u32 man; + u32 reserved2[54]; // version and PDC not needed +} atmel_usart3_t; /* Bitfields in CR */ #define USART3_RSTRX_OFFSET 2 @@ -305,10 +303,4 @@ << USART3_##name##_OFFSET)) \ | USART3_BF(name,value)) -/* Register access macros */ -#define usart3_readl(reg) \ - readl((void *)USART_BASE + USART3_##reg) -#define usart3_writel(reg,value) \ - writel((value), (void *)USART_BASE + USART3_##reg) - #endif /* __DRIVERS_ATMEL_USART_H__ */ |