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author | John Schmoller <jschmoller@xes-inc.com> | 2010-10-22 00:20:24 -0500 |
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committer | Kumar Gala <galak@kernel.crashing.org> | 2010-10-22 02:17:16 -0500 |
commit | 92af6549b8c52e9c973e4e197aa4d1edf4df5803 (patch) | |
tree | e190db70b9f506251792b1cdd6585534a017ee91 /board/xes/common/fsl_8xxx_misc.c | |
parent | 96d6160324c49c81df10b6b4c75d2470cb30dce4 (diff) | |
download | u-boot-imx-92af6549b8c52e9c973e4e197aa4d1edf4df5803.zip u-boot-imx-92af6549b8c52e9c973e4e197aa4d1edf4df5803.tar.gz u-boot-imx-92af6549b8c52e9c973e4e197aa4d1edf4df5803.tar.bz2 |
xes: Consolidate checkboard()
Create a common checkboard() function to support all X-ES's Freescale
boards.
Also, add a get_board_derivative() function which reads hardware
strapping resistors to determine what model a board is. This allows one
U-Boot image to support multiple boards.
Signed-off-by: John Schmoller <jschmoller@xes-inc.com>
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'board/xes/common/fsl_8xxx_misc.c')
-rw-r--r-- | board/xes/common/fsl_8xxx_misc.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/board/xes/common/fsl_8xxx_misc.c b/board/xes/common/fsl_8xxx_misc.c new file mode 100644 index 0000000..e37a3c1 --- /dev/null +++ b/board/xes/common/fsl_8xxx_misc.c @@ -0,0 +1,47 @@ +/* + * Copyright 2008 Extreme Engineering Solutions, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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 + */ + +#include <common.h> +#include <asm/mmu.h> + +/* + * Return a board's derivative model number. For example: + * return 2 for the XPedite5372 and return 1 for the XPedite5201. + */ +uint get_board_derivative(void) +{ +#if defined(CONFIG_MPC85xx) + volatile ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR; +#elif defined(CONFIG_MPC86xx) + volatile immap_t *immap = (immap_t *)CONFIG_SYS_CCSRBAR; + volatile ccsr_gur_t *gur = &immap->im_gur; +#endif + + /* + * The top 4 lines of the local bus address are pulled low/high and + * can be read to determine the least significant digit of a board's + * model number. + */ + return gur->gpporcr >> 28; +} + + |