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OMAP4/5: device: Add support to get the device type. 

Add support to identify the device as GP/EMU/HS.

Signed-off-by: R Sricharan <r.sricharan@ti.com>
This commit is contained in:
SRICHARAN R 2012-03-12 02:25:43 +00:00 committed by Albert ARIBAUD
parent 002a2c0c66
commit c1fa3c37af
3 changed files with 13 additions and 1 deletions
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6
arch/arm/cpu/armv7/omap-common/hwinit-common.c
View File

@ -217,7 +217,11 @@ int arch_cpu_init(void)
*/
u32 get_device_type(void)
{
return 0;
struct omap_sys_ctrl_regs *ctrl =
(struct omap_sys_ctrl_regs *) SYSCTRL_GENERAL_CORE_BASE;
return (readl(&ctrl->control_status) &
(DEVICE_TYPE_MASK)) >> DEVICE_TYPE_SHIFT;
}
/*

4
arch/arm/include/asm/arch-omap4/omap.h
View File

@ -139,6 +139,10 @@ struct s32ktimer {
unsigned int s32k_cr; /* 0x10 */
};
#define DEVICE_TYPE_SHIFT (0x8)
#define DEVICE_TYPE_MASK (0x7 << DEVICE_TYPE_SHIFT)
#define DEVICE_GP 0x3
struct omap_sys_ctrl_regs {
unsigned int pad1[129];
unsigned int control_id_code; /* 0x4A002204 */

4
arch/arm/include/asm/arch-omap5/omap.h
View File

@ -136,6 +136,10 @@ struct s32ktimer {
unsigned int s32k_cr; /* 0x10 */
};
#define DEVICE_TYPE_SHIFT 0x6
#define DEVICE_TYPE_MASK (0x7 << DEVICE_TYPE_SHIFT)
#define DEVICE_GP 0x3
struct omap_sys_ctrl_regs {
u32 pad0[77]; /* 0x4A002000 */
u32 control_status; /* 0x4A002134 */