Provide the specific addresses for the Chip ID and Chip ID Extension registers, instead of the offset, which make it use on other chips.
Signed-off-by: Wenyou Yang wenyou.yang@atmel.com ---
arch/arm/mach-at91/armv7/cpu.c | 7 ++++--- arch/arm/mach-at91/include/mach/at91_dbu.h | 4 ---- arch/arm/mach-at91/include/mach/sama5d3.h | 3 +++ arch/arm/mach-at91/include/mach/sama5d4.h | 3 +++ 4 files changed, 10 insertions(+), 7 deletions(-)
diff --git a/arch/arm/mach-at91/armv7/cpu.c b/arch/arm/mach-at91/armv7/cpu.c index 8d86f97..7843aed 100644 --- a/arch/arm/mach-at91/armv7/cpu.c +++ b/arch/arm/mach-at91/armv7/cpu.c @@ -12,7 +12,6 @@ #include <common.h> #include <asm/io.h> #include <asm/arch/hardware.h> -#include <asm/arch/at91_dbu.h> #include <asm/arch/at91_pmc.h> #include <asm/arch/at91_pit.h> #include <asm/arch/at91_gpbr.h> @@ -65,12 +64,14 @@ void enable_caches(void) dcache_enable(); }
+#define ATMEL_CHIPID_CIDR_VERSION 0x1f + unsigned int get_chip_id(void) { - return readl(ATMEL_BASE_DBGU + AT91_DBU_CIDR) & ~AT91_DBU_CIDR_MASK; + return readl(ATMEL_CHIPID_CIDR) & ~ATMEL_CHIPID_CIDR_VERSION; }
unsigned int get_extension_chip_id(void) { - return readl(ATMEL_BASE_DBGU + AT91_DBU_EXID); + return readl(ATMEL_CHIPID_EXID); } diff --git a/arch/arm/mach-at91/include/mach/at91_dbu.h b/arch/arm/mach-at91/include/mach/at91_dbu.h index 7346fc0..3181138 100644 --- a/arch/arm/mach-at91/include/mach/at91_dbu.h +++ b/arch/arm/mach-at91/include/mach/at91_dbu.h @@ -35,8 +35,4 @@ typedef struct at91_dbu { #define AT91_DBU_CID_ARCH_9xx 0x01900000 #define AT91_DBU_CID_ARCH_9XExx 0x02900000
-#define AT91_DBU_CIDR_MASK 0x1f -#define AT91_DBU_CIDR 0x40 -#define AT91_DBU_EXID 0x44 - #endif diff --git a/arch/arm/mach-at91/include/mach/sama5d3.h b/arch/arm/mach-at91/include/mach/sama5d3.h index b749cb3..33f6c97 100644 --- a/arch/arm/mach-at91/include/mach/sama5d3.h +++ b/arch/arm/mach-at91/include/mach/sama5d3.h @@ -158,6 +158,9 @@ #define ATMEL_BASE_RTC 0xfffffeb0 /* Reserved: 0xfffffee0 - 0xffffffff */
+#define ATMEL_CHIPID_CIDR 0xffffee40 +#define ATMEL_CHIPID_EXID 0xffffee44 + /* * Internal Memory. */ diff --git a/arch/arm/mach-at91/include/mach/sama5d4.h b/arch/arm/mach-at91/include/mach/sama5d4.h index 7773ace..3da8aff 100644 --- a/arch/arm/mach-at91/include/mach/sama5d4.h +++ b/arch/arm/mach-at91/include/mach/sama5d4.h @@ -144,6 +144,9 @@ #define ATMEL_BASE_PIOE 0xfc06d000 #define ATMEL_BASE_AIC 0xfc06e000
+#define ATMEL_CHIPID_CIDR 0xfc069040 +#define ATMEL_CHIPID_EXID 0xfc069044 + /* * Internal Memory. */