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omap3evm: Add board revision function

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Added function to differentiate between the OMAP3EVM revisions. The
chip-id of the ethernet PHY is being used for this purpose.

Rev A to D : 0x01150000
Rev >= E   : 0x92200000

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Sanjeev Premi <premi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Ajay Kumar Gupta
2009-11-22 10:11:27 -08:00
committed by Tony Lindgren
parent 50a1f7bfea
commit db408023b8
2 changed files with 53 additions and 0 deletions
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18
arch/arm/plat-omap/include/plat/board.h
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@@ -14,6 +14,18 @@
#include <plat/gpio-switch.h>
/*
* OMAP35x EVM revision
* Run time detection of EVM revision is done by reading Ethernet
* PHY ID -
* GEN_1 = 0x01150000
* GEN_2 = 0x92200000
*/
enum {
OMAP3EVM_BOARD_GEN_1 = 0, /* EVM Rev between A - D */
OMAP3EVM_BOARD_GEN_2, /* EVM Rev >= Rev E */
};
/* Different peripheral ids */
#define OMAP_TAG_CLOCK 0x4f01
#define OMAP_TAG_LCD 0x4f05
@@ -157,4 +169,10 @@ extern int omap_board_config_size;
/* for TI reference platforms sharing the same debug card */
extern int debug_card_init(u32 addr, unsigned gpio);
/* OMAP3EVM revision */
#if defined(CONFIG_MACH_OMAP3EVM)
u8 get_omap3_evm_rev(void);
#else
#define get_omap3_evm_rev() (-EINVAL)
#endif
#endif