[PATCH 3/6] imx35: add detection of silicon revision

[Marc Reilly]

Implemented imx_silicon_revision() for imx35.
---
 arch/arm/mach-imx/imx35.c                   |   11 +++++++++++
 arch/arm/mach-imx/include/mach/generic.h    |    5 +++++
 arch/arm/mach-imx/include/mach/imx35-regs.h |   18 ++++++++++++++++++
 3 files changed, 34 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-imx/imx35.c b/arch/arm/mach-imx/imx35.c
index f2fea4c..0d21311 100644
--- a/arch/arm/mach-imx/imx35.c
+++ b/arch/arm/mach-imx/imx35.c
@@ -16,6 +16,9 @@
  */
 
 #include <common.h>
+#include <asm/io.h>
+#include <mach/imx-regs.h>
+#include <mach/generic.h>
 
 #include "gpio.h"
 
@@ -27,3 +30,11 @@ void *imx_gpio_base[] = {
 
 int imx_gpio_count = ARRAY_SIZE(imx_gpio_base) * 32;
 
+int imx_silicon_revision()
+{
+	uint32_t reg;
+	reg = readl(IMX_IIM_BASE + IIM_SREV);
+	reg += IMX35_CHIP_REVISION_1_0;
+	
+	return (reg & 0xFF);
+}
diff --git a/arch/arm/mach-imx/include/mach/generic.h b/arch/arm/mach-imx/include/mach/generic.h
index 99a53a4..48ed336 100644
--- a/arch/arm/mach-imx/include/mach/generic.h
+++ b/arch/arm/mach-imx/include/mach/generic.h
@@ -3,6 +3,11 @@ int imx_silicon_revision(void);
 #define IMX27_CHIP_REVISION_1_0   0
 #define IMX27_CHIP_REVISION_2_0   1
 
+#define IMX35_CHIP_REVISION_1_0   0x10
+#define IMX35_CHIP_REVISION_2_0   0x20
+
+
+
 #ifdef CONFIG_ARCH_IMX1
 #define cpu_is_mx1()	(1)
 #else
diff --git a/arch/arm/mach-imx/include/mach/imx35-regs.h b/arch/arm/mach-imx/include/mach/imx35-regs.h
index c394a2a..899e57b 100644
--- a/arch/arm/mach-imx/include/mach/imx35-regs.h
+++ b/arch/arm/mach-imx/include/mach/imx35-regs.h
@@ -76,6 +76,24 @@
 #define PDR0_AUTO_CON		(1 << 0)
 #define PDR0_PER_SEL		(1 << 26)
 
+
+#define IIM_STAT	0x0000
+#define IIM_STATM	0x0004
+#define IIM_ERR		0x0008
+#define IIM_EMASK	0x000C
+#define IIM_FCTL	0x0010
+#define IIM_UA		0x0014
+#define IIM_LA		0x0018
+#define IIM_SDAT	0x001C
+#define IIM_PREV	0x0020
+#define IIM_SREV	0x0024
+#define IIM_PREG_P	0x0028
+#define IIM_SCS0	0x002C
+#define IIM_SCS1	0x0030
+#define IIM_SCS2	0x0034
+#define IIM_SCS3	0x0038
+
+
 /*
  * Adresses and ranges of the external chip select lines
  */
-- 
1.6.4.2