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authorManjunath Hadli <manjunath.hadli@ti.com>2011-11-08 08:59:57 -0500
committerSandeep Paulraj <s-paulraj@ti.com>2011-11-08 08:59:57 -0500
commitb79df8f8f8f373b6b6aadfd11ffded4f698a760e (patch)
tree4a7bcff9579b194f6afcf5f70f21a9d6b436a9b5
parent2d575e46859dd9127a9cec731ace77523e6ea2ab (diff)
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dm646x: pass board revision info to kernel
add a function in board file to pass board revision info to kernel. Revision number 0 and 1 are passed in case of DM6467 and DM6467T respectively. Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
-rw-r--r--board/davinci/dm6467evm/dm6467evm.c20
-rw-r--r--include/configs/davinci_dm6467Tevm.h2
-rw-r--r--include/configs/davinci_dm6467evm.h1
3 files changed, 23 insertions, 0 deletions
diff --git a/board/davinci/dm6467evm/dm6467evm.c b/board/davinci/dm6467evm/dm6467evm.c
index 1a01c3c..ac82d5c 100644
--- a/board/davinci/dm6467evm/dm6467evm.c
+++ b/board/davinci/dm6467evm/dm6467evm.c
@@ -24,6 +24,26 @@
DECLARE_GLOBAL_DATA_PTR;
+#define REV_DM6467EVM 0
+#define REV_DM6467TEVM 1
+/*
+ * get_board_rev() - setup to pass kernel board revision information
+ * Returns:
+ * bit[0-3] System clock frequency
+ * 0000b - 27 MHz
+ * 0001b - 33 MHz
+ */
+u32 get_board_rev(void)
+{
+
+#ifdef DAVINCI_DM6467TEVM
+ return REV_DM6467TEVM;
+#else
+ return REV_DM6467EVM;
+#endif
+
+}
+
int board_init(void)
{
gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_DM6467_EVM;
diff --git a/include/configs/davinci_dm6467Tevm.h b/include/configs/davinci_dm6467Tevm.h
index c507045..f7c994e 100644
--- a/include/configs/davinci_dm6467Tevm.h
+++ b/include/configs/davinci_dm6467Tevm.h
@@ -22,6 +22,7 @@
/* Spectrum Digital TMS320DM6467T EVM board */
#define DAVINCI_DM6467EVM
+#define DAVINCI_DM6467TEVM
#define CONFIG_SYS_USE_NAND
#define CONFIG_SYS_NAND_SMALLPAGE
@@ -64,6 +65,7 @@ extern unsigned int davinci_arm_clk_get(void);
#define CONFIG_SETUP_MEMORY_TAGS
#define CONFIG_SYS_BARGSIZE 1024 /* Bootarg Size */
#define CONFIG_SYS_LOAD_ADDR 0x80700000 /* kernel address */
+#define CONFIG_REVISION_TAG
/* Serial Driver info */
#define CONFIG_SYS_NS16550
diff --git a/include/configs/davinci_dm6467evm.h b/include/configs/davinci_dm6467evm.h
index ec1c31c..c9a0cd1 100644
--- a/include/configs/davinci_dm6467evm.h
+++ b/include/configs/davinci_dm6467evm.h
@@ -65,6 +65,7 @@ extern unsigned int davinci_arm_clk_get(void);
#define CONFIG_SETUP_MEMORY_TAGS
#define CONFIG_SYS_BARGSIZE 1024 /* Bootarg Size */
#define CONFIG_SYS_LOAD_ADDR 0x80700000 /* kernel address */
+#define CONFIG_REVISION_TAG
/* Serial Driver info */
#define CONFIG_SYS_NS16550