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-rw-r--r--board/keymile/common/common.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/board/keymile/common/common.c b/board/keymile/common/common.c
index 8392a64..4883fe5 100644
--- a/board/keymile/common/common.c
+++ b/board/keymile/common/common.c
@@ -42,6 +42,7 @@
static void i2c_write_start_seq(void);
static int i2c_make_abort(void);
+DECLARE_GLOBAL_DATA_PTR;
int ivm_calc_crc(unsigned char *buf, int len)
{
@@ -73,6 +74,41 @@ int ivm_calc_crc(unsigned char *buf, int len)
return crc;
}
+/*
+ * Set Keymile specific environment variables
+ * Currently only some memory layout variables are calculated here
+ * ... ------------------------------------------------
+ * ... |@rootfsaddr |@pnvramaddr |@varaddr |@reserved |@END_OF_RAM
+ * ... |<------------------- pram ------------------->|
+ * ... ------------------------------------------------
+ * @END_OF_RAM: denotes the RAM size
+ * @pnvramaddr: Startadress of pseudo non volatile RAM in hex
+ * @pram : preserved ram size in k
+ * @varaddr : startadress for /var mounted into RAM
+ */
+int set_km_env(void)
+{
+ uchar buf[32];
+ unsigned int pnvramaddr;
+ unsigned int pram;
+ unsigned int varaddr;
+
+ pnvramaddr = gd->ram_size - CONFIG_KM_RESERVED_PRAM - CONFIG_KM_PHRAM
+ - CONFIG_KM_PNVRAM;
+ sprintf((char *)buf, "0x%x", pnvramaddr);
+ setenv("pnvramaddr", (char *)buf);
+
+ pram = (CONFIG_KM_RESERVED_PRAM + CONFIG_KM_PHRAM + CONFIG_KM_PNVRAM) /
+ 0x400;
+ sprintf((char *)buf, "0x%x", pram);
+ setenv("pram", (char *)buf);
+
+ varaddr = gd->ram_size - CONFIG_KM_RESERVED_PRAM - CONFIG_KM_PHRAM;
+ sprintf((char *)buf, "0x%x", varaddr);
+ setenv("varaddr", (char *)buf);
+ return 0;
+}
+
static int ivm_set_value(char *name, char *value)
{
char tempbuf[256];