fsl/sleep: updated the deep sleep framework for QorIQ platforms

With the introducing of generic board and ARM-based cores, current
deep sleep framework doesn't work anymore.
This patch will convert the current framework to adapt this change.
Basically it does:
1. Converts all the Freescale's DDR driver to support deep sleep.
2. Added basic framework support for ARM-based and PPC-based
cores separately.

Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
diff --git a/include/fsl_ddr_sdram.h b/include/fsl_ddr_sdram.h
index 5b03c14..095b33e 100644
--- a/include/fsl_ddr_sdram.h
+++ b/include/fsl_ddr_sdram.h
@@ -114,6 +114,7 @@
 #define SDRAM_CFG_2T_EN			0x00008000
 #define SDRAM_CFG_BI			0x00000001
 
+#define SDRAM_CFG2_FRC_SR		0x80000000
 #define SDRAM_CFG2_D_INIT		0x00000010
 #define SDRAM_CFG2_ODT_CFG_MASK		0x00600000
 #define SDRAM_CFG2_ODT_NEVER		0
@@ -163,6 +164,7 @@
 #define DDR_CDR1_ODT(x) ((x & DDR_CDR1_ODT_MASK) << DDR_CDR1_ODT_SHIFT)
 #define DDR_CDR2_ODT(x) (x & DDR_CDR2_ODT_MASK)
 #define DDR_CDR2_VREF_OVRD(x)	(0x00008080 | ((((x) - 37) & 0x3F) << 8))
+#define DDR_CDR2_VREF_TRAIN_EN	0x00000080
 
 #if (defined(CONFIG_SYS_FSL_DDR_VER) && \
 	(CONFIG_SYS_FSL_DDR_VER >= FSL_DDR_VER_4_7))
@@ -202,6 +204,8 @@
 #define DDR_CDR_ODT_120ohm	0x6
 #endif
 
+#define DDR_INIT_ADDR_EXT_UIA	(1 << 31)
+
 /* Record of register values computed */
 typedef struct fsl_ddr_cfg_regs_s {
 	struct {
@@ -414,9 +418,11 @@
 int board_need_mem_reset(void)
 	__attribute__((weak, alias("__board_need_mem_reset")));
 
-void __weak board_mem_sleep_setup(void)
-{
-}
+#if defined(CONFIG_DEEP_SLEEP)
+void board_mem_sleep_setup(void);
+bool is_warm_boot(void);
+int fsl_dp_resume(void);
+#endif
 
 /*
  * The 85xx boards have a common prototype for fixed_sdram so put the