arm: socfpga: Define the usage of boot scratch cold reg 8

The boot scratch cold reg 8 is shared between DBE, DDR init progress
update and Linux EDAC. This patch defines how the bits are used by
respective features above and their macro names used in U-Boot.

Signed-off-by: Tien Fong Chee <tien.fong.chee@altera.com>
Signed-off-by: Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi@altera.com>
Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>

diff --git a/arch/arm/mach-socfpga/include/mach/system_manager_soc64.h b/arch/arm/mach-socfpga/include/mach/system_manager_soc64.h
index c2ca0a50e35df22a8ae9c81493042ed3db67939b..8e12aeec011ead8823e6412b64a8641de73c3a14 100644 (file)
--- a/arch/arm/mach-socfpga/include/mach/system_manager_soc64.h
+++ b/arch/arm/mach-socfpga/include/mach/system_manager_soc64.h
@@ -141,6 +141,19 @@ void populate_sysmgr_pinmux(void);
 #define ALT_SYSMGR_SCRATCH_REG_0_DDR_RESET_TYPE_MASK   (BIT(29) | BIT(28))
 #define ALT_SYSMGR_SCRATCH_REG_0_DDR_RESET_TYPE_SHIFT  28
 
+/*
+ * Bits for SYSMGR_SOC64_BOOT_SCRATCH_COLD8
+ * Bit[31] reserved for FSBL to check DBE is triggered (set by SDM to "1") ?
+ *
+ * Bit[30] reserved for FSBL to update the DDR init progress
+ * 1 - means in progress, 0 - haven't started / DDR is up running.
+ *
+ * Bit[17:1] - Setting by Linux EDAC.
+ * Bit[1](ECC_OCRAM), Bit[16](ECC_DDR0), Bit[17](ECC_DDR1)
+ */
+#define ALT_SYSMGR_SCRATCH_REG_8_DDR_DBE_MASK  BIT(31)
+#define ALT_SYSMGR_SCRATCH_REG_8_DDR_PROGRESS_MASK     BIT(30)
+
 #define SYSMGR_SDMMC                           SYSMGR_SOC64_SDMMC
 
 #define SYSMGR_ROMCODEGRP_CTRL_WARMRSTCFGPINMUX        BIT(0)