[PATCH 07/11] ARM: imx: Add support of uncompress print for i.MX28

[u.kleine-koenig@pengutronix.de (Uwe Kleine-König)]

On Mon, Nov 15, 2010 at 10:36:31PM +0800, Shawn Guo wrote:
> SoC i.MX28 uses DUART IP block as the debug serial. It adds the
> support in the same file used by other i.MX SoC UART, and uses
> variable is_duart to distinguish.
> 
> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
> ---
>  arch/arm/plat-mxc/include/mach/uncompress.h |   20 ++++++++++++++------
>  1 files changed, 14 insertions(+), 6 deletions(-)
> 
> diff --git a/arch/arm/plat-mxc/include/mach/uncompress.h b/arch/arm/plat-mxc/include/mach/uncompress.h
> index 9dd9c20..adb617f 100644
> --- a/arch/arm/plat-mxc/include/mach/uncompress.h
> +++ b/arch/arm/plat-mxc/include/mach/uncompress.h
> @@ -1,8 +1,9 @@
>  /*
> - *  arch/arm/plat-mxc/include/mach/uncompress.h
> + *  rch/arm/plat-mxc/include/mach/uncompress.h
???

>   *
>   *  Copyright (C) 1999 ARM Limited
>   *  Copyright (C) Shane Nay (shane at minirl.com)
> + *  Copyright 2010 Freescale Semiconductor, Inc. All Rights Reserved.
>   *
>   * 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
> @@ -22,14 +23,16 @@
>  #include <asm/mach-types.h>
>  
>  static unsigned long uart_base;
> +static unsigned short is_duart = 0;
don't initialize static variables to 0.

>  
>  #define UART(x) (*(volatile unsigned long *)(uart_base + (x)))
>  
> -#define USR2 0x98
> -#define USR2_TXFE (1<<14)
> -#define TXR  0x40
> -#define UCR1 0x80
> -#define UCR1_UARTEN 1
> +#define USR2		(is_duart ? 0x18 : 0x98)
> +#define USR2_TXFE	(is_duart ? 1<<7 : 1<<14)
> +#define USR2_BUSY	(1 << 3)
> +#define TXR		(is_duart ? 0x00 : 0x40)
> +#define UCR1		(is_duart ? 0x30 : 0x80)
> +#define UCR1_UARTEN	1
>  
>  /*
>   * The following code assumes the serial port has already been
> @@ -59,6 +62,7 @@ static inline void flush(void)
>  
>  #define MX1_UART1_BASE_ADDR	0x00206000
>  #define MX25_UART1_BASE_ADDR	0x43f90000
> +#define MX28_DUART_BASE_ADDR	0x80074000
>  #define MX2X_UART1_BASE_ADDR	0x1000a000
>  #define MX3X_UART1_BASE_ADDR	0x43F90000
>  #define MX3X_UART2_BASE_ADDR	0x43F94000
> @@ -83,6 +87,10 @@ static __inline__ void __arch_decomp_setup(unsigned long arch_id)
>  	case MACH_TYPE_MXT_TD60:
>  		uart_base = MX2X_UART1_BASE_ADDR;
>  		break;
> +	case MACH_TYPE_MX28EVK:
> +		uart_base = MX28_DUART_BASE_ADDR;
> +		is_duart = 1;
> +		break;
>  	case MACH_TYPE_MX31LITE:
>  	case MACH_TYPE_ARMADILLO5X0:
>  	case MACH_TYPE_MX31MOBOARD:
> -- 
> 1.7.1
> 
> 
> 

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Pengutronix e.K.                           | Uwe Kleine-K?nig            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |