diff options
Diffstat (limited to 'include/asm-arm/arch-imx/uncompress.h')
-rw-r--r-- | include/asm-arm/arch-imx/uncompress.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/include/asm-arm/arch-imx/uncompress.h b/include/asm-arm/arch-imx/uncompress.h new file mode 100644 index 000000000000..096077f2750b --- /dev/null +++ b/include/asm-arm/arch-imx/uncompress.h @@ -0,0 +1,78 @@ +/* + * linux/include/asm-arm/arch-imxads/uncompress.h + * + * + * + * Copyright (C) 1999 ARM Limited + * Copyright (C) Shane Nay (shane@minirl.com) + * + * 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 + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#define UART(x) (*(volatile unsigned long *)(serial_port + (x))) + +#define UART1_BASE 0x206000 +#define UART2_BASE 0x207000 +#define USR2 0x98 +#define USR2_TXFE (1<<14) +#define TXR 0x40 +#define UCR1 0x80 +#define UCR1_UARTEN 1 + +/* + * The following code assumes the serial port has already been + * initialized by the bootloader. We search for the first enabled + * port in the most probable order. If you didn't setup a port in + * your bootloader then nothing will appear (which might be desired). + * + * This does not append a newline + */ +static void +putstr(const char *s) +{ + unsigned long serial_port; + + do { + serial_port = UART1_BASE; + if ( UART(UCR1) & UCR1_UARTEN ) + break; + serial_port = UART2_BASE; + if ( UART(UCR1) & UCR1_UARTEN ) + break; + return; + } while(0); + + while (*s) { + while ( !(UART(USR2) & USR2_TXFE) ) + barrier(); + + UART(TXR) = *s; + + if (*s == '\n') { + while ( !(UART(USR2) & USR2_TXFE) ) + barrier(); + + UART(TXR) = '\r'; + } + s++; + } +} + +/* + * nothing to do + */ +#define arch_decomp_setup() + +#define arch_decomp_wdog() |