[U-Boot] [PATCH 1/2] da8xx: Add cpu_is_da8xx macros

[Stefano Babic]

From: Sudhakar Rajashekhara <sudhakar.raj at ti.com>

Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj at ti.com>
CC: Stefano Babic <sbabic at denx.de>
CC: Detlev Zundev <dzu at denx.de>
CC: Ben Gardiner <bengardiner at nanometrics.ca>
---
 arch/arm/include/asm/arch-davinci/hardware.h |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/arch/arm/include/asm/arch-davinci/hardware.h b/arch/arm/include/asm/arch-davinci/hardware.h
index 3520cf8..2a460b5 100644
--- a/arch/arm/include/asm/arch-davinci/hardware.h
+++ b/arch/arm/include/asm/arch-davinci/hardware.h
@@ -149,6 +149,7 @@ typedef volatile unsigned int *	dv_reg_p;
 #define DAVINCI_DDR_EMIF_DATA_BASE		0xc0000000
 #define DAVINCI_INTC_BASE			0xfffee000
 #define DAVINCI_BOOTCFG_BASE			0x01c14000
+#define JTAG_ID_REG                            (DAVINCI_BOOTCFG_BASE + 0x18)
 
 #endif /* CONFIG_SOC_DA8XX */
 
@@ -442,6 +443,21 @@ struct davinci_uart_ctrl_regs {
 #define DAVINCI_UART_PWREMU_MGMT_URRST	(1 << 13)
 #define DAVINCI_UART_PWREMU_MGMT_UTRST	(1 << 14)
 
+static inline int cpu_is_da830(void)
+{
+	unsigned int jtag_id	= REG(JTAG_ID_REG);
+	unsigned short part_no	= (jtag_id >> 12) & 0xffff;
+
+	return ((part_no == 0xb7df) ? 1 : 0);
+}
+static inline int cpu_is_da850(void)
+{
+	unsigned int jtag_id    = REG(JTAG_ID_REG);
+	unsigned short part_no  = (jtag_id >> 12) & 0xffff;
+
+	return ((part_no == 0xb7d1) ? 1 : 0);
+}
+
 #endif /* CONFIG_SOC_DA8XX */
 
 #endif /* __ASM_ARCH_HARDWARE_H */
-- 
1.7.1