[U-Boot] [PATCH 1/2] powerpc/mpc85xx:Put errata number for T104x NAND boot issue

[Prabhakar Kushwaha]

When device is configured to load RCW from NAND flash IFC_A[16:31] are driven
low after RCW loading. Hence Devices connected on IFC_CS[1:7] and using
IFC_A[16:31] lines are not accessible.

Workaround is already in-place.
Put the errata number to adhere errata handling framework.

Signed-off-by: Prabhakar Kushwaha <prabhakar at freescale.com>
---
 README                                    |  4 ++++
 arch/powerpc/cpu/mpc85xx/cmd_errata.c     |  4 +++-
 arch/powerpc/include/asm/config_mpc85xx.h |  1 +
 board/freescale/t104xrdb/spl.c            |  4 ++--
 include/configs/T104xRDB.h                | 10 +++++++++-
 5 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/README b/README
index 46def00..5ff19c3 100644
--- a/README
+++ b/README
@@ -409,6 +409,10 @@ The following options need to be configured:
 		Enables a workaround for IFC erratum A003399. It is only
 		requred during NOR boot.
 
+		CONFIG_A08044_WORKAROUND
+		Enables a workaround for T1040/T1042 erratum A008044. It is only
+		requred during NAND boot and valid for Rev 1.0 SoC revision
+
 		CONFIG_SYS_FSL_CORENET_SNOOPVEC_COREONLY
 
 		This is the value to write into CCSR offset 0x18600
diff --git a/arch/powerpc/cpu/mpc85xx/cmd_errata.c b/arch/powerpc/cpu/mpc85xx/cmd_errata.c
index 3a04a89..82d31ba 100644
--- a/arch/powerpc/cpu/mpc85xx/cmd_errata.c
+++ b/arch/powerpc/cpu/mpc85xx/cmd_errata.c
@@ -308,7 +308,9 @@ static int do_errata(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 #ifdef CONFIG_SYS_FSL_ERRATUM_A005434
 	puts("Work-around for Erratum A-005434 enabled\n");
 #endif
-
+#if defined(CONFIG_SYS_FSL_ERRATUM_A008044) && defined(CONFIG_A08044_WORKAROUND)
+	puts("Work-around for Erratum A-008044 enabled\n");
+#endif
 	return 0;
 }
 
diff --git a/arch/powerpc/include/asm/config_mpc85xx.h b/arch/powerpc/include/asm/config_mpc85xx.h
index 712f2ef..5e1e4b2 100644
--- a/arch/powerpc/include/asm/config_mpc85xx.h
+++ b/arch/powerpc/include/asm/config_mpc85xx.h
@@ -767,6 +767,7 @@ defined(CONFIG_PPC_T1020) || defined(CONFIG_PPC_T1022)
 #define CONFIG_SYS_PME_CLK		CONFIG_PME_PLAT_CLK_DIV
 #define CONFIG_SYS_FSL_DDR_VER		FSL_DDR_VER_5_0
 #define CONFIG_SYS_FSL_IFC_BANK_COUNT	8
+#define CONFIG_SYS_FSL_ERRATUM_A008044
 #define CONFIG_SYS_FMAN_V3
 #define CONFIG_FM_PLAT_CLK_DIV	1
 #define CONFIG_SYS_FM1_CLK		CONFIG_FM_PLAT_CLK_DIV
diff --git a/board/freescale/t104xrdb/spl.c b/board/freescale/t104xrdb/spl.c
index 3822a37..218bda8 100644
--- a/board/freescale/t104xrdb/spl.c
+++ b/board/freescale/t104xrdb/spl.c
@@ -34,12 +34,12 @@ unsigned long get_board_ddr_clk(void)
 void board_init_f(ulong bootflag)
 {
 	u32 plat_ratio, sys_clk, uart_clk;
-#ifdef CONFIG_SPL_NAND_BOOT
+#if defined(CONFIG_SPL_NAND_BOOT) && defined(CONFIG_A08044_WORKAROUND)
 	u32 porsr1, pinctl;
 #endif
 	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
 
-#ifdef CONFIG_SPL_NAND_BOOT
+#if defined(CONFIG_SPL_NAND_BOOT) && defined(CONFIG_A08044_WORKAROUND)
 	/*
 	 * There is T1040 SoC issue where NOR, FPGA are inaccessible during
 	 * NAND boot because IFC signals > IFC_AD7 are not enabled.
diff --git a/include/configs/T104xRDB.h b/include/configs/T104xRDB.h
index 5e2c100..bbfe15a 100644
--- a/include/configs/T104xRDB.h
+++ b/include/configs/T104xRDB.h
@@ -13,6 +13,9 @@
 #define CONFIG_T104xRDB
 #define CONFIG_PHYS_64BIT
 
+#define CONFIG_E500			/* BOOKE e500 family */
+#include <asm/config_mpc85xx.h>
+
 #ifdef CONFIG_RAMBOOT_PBL
 #define CONFIG_SYS_FSL_PBL_PBI $(SRCTREE)/board/freescale/t104xrdb/t104x_pbi.cfg
 #ifdef CONFIG_T1040RDB
@@ -93,7 +96,6 @@
 
 /* High Level Configuration Options */
 #define CONFIG_BOOKE
-#define CONFIG_E500			/* BOOKE e500 family */
 #define CONFIG_E500MC			/* BOOKE e500mc family */
 #define CONFIG_SYS_BOOK3E_HV		/* Category E.HV supported */
 #define CONFIG_MP			/* support multiple processors */
@@ -385,6 +387,12 @@
 #define CONFIG_SYS_RAMBOOT
 #endif
 
+#ifdef CONFIG_SYS_FSL_ERRATUM_A008044
+#if defined(CONFIG_NAND)
+#define CONFIG_A08044_WORKAROUND
+#endif
+#endif
+
 #define CONFIG_BOARD_EARLY_INIT_R
 #define CONFIG_MISC_INIT_R
 
-- 
1.9.1