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dm646x: pass board revision info to kernel 

add a function in board file to pass board revision
info to kernel. Revision number 0 and 1 are passed in
case of DM6467 and DM6467T respectively.

Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
This commit is contained in:
Manjunath Hadli 2011-11-08 08:59:57 -05:00 committed by Sandeep Paulraj
parent 2d575e4685
commit b79df8f8f8
3 changed files with 23 additions and 0 deletions
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20
board/davinci/dm6467evm/dm6467evm.c
View File

@ -24,6 +24,26 @@
DECLARE_GLOBAL_DATA_PTR;
#define REV_DM6467EVM 0
#define REV_DM6467TEVM 1
/*
* get_board_rev() - setup to pass kernel board revision information
* Returns:
* bit[0-3] System clock frequency
* 0000b - 27 MHz
* 0001b - 33 MHz
*/
u32 get_board_rev(void)
{
#ifdef DAVINCI_DM6467TEVM
return REV_DM6467TEVM;
#else
return REV_DM6467EVM;
#endif
}
int board_init(void)
{
gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_DM6467_EVM;

2
include/configs/davinci_dm6467Tevm.h
View File

@ -22,6 +22,7 @@
/* Spectrum Digital TMS320DM6467T EVM board */
#define DAVINCI_DM6467EVM
#define DAVINCI_DM6467TEVM
#define CONFIG_SYS_USE_NAND
#define CONFIG_SYS_NAND_SMALLPAGE
@ -64,6 +65,7 @@ extern unsigned int davinci_arm_clk_get(void);
#define CONFIG_SETUP_MEMORY_TAGS
#define CONFIG_SYS_BARGSIZE 1024 /* Bootarg Size */
#define CONFIG_SYS_LOAD_ADDR 0x80700000 /* kernel address */
#define CONFIG_REVISION_TAG
/* Serial Driver info */
#define CONFIG_SYS_NS16550

1
include/configs/davinci_dm6467evm.h
View File

@ -65,6 +65,7 @@ extern unsigned int davinci_arm_clk_get(void);
#define CONFIG_SETUP_MEMORY_TAGS
#define CONFIG_SYS_BARGSIZE 1024 /* Bootarg Size */
#define CONFIG_SYS_LOAD_ADDR 0x80700000 /* kernel address */
#define CONFIG_REVISION_TAG
/* Serial Driver info */
#define CONFIG_SYS_NS16550