[U-Boot] [PATCH 7/8] t1024: increase IO drive strength

[Shengzhou Liu]

Increase IO drive strength to fix FCS error on RGMII ports
on T1024QDS and T1024RDB.

Signed-off-by: Shengzhou Liu <Shengzhou.Liu at freescale.com>
---
 arch/powerpc/include/asm/immap_85xx.h | 3 +++
 board/freescale/t102xqds/t102xqds.c   | 4 ++++
 board/freescale/t102xrdb/t102xrdb.c   | 3 +++
 3 files changed, 10 insertions(+)

diff --git a/arch/powerpc/include/asm/immap_85xx.h b/arch/powerpc/include/asm/immap_85xx.h
index 2128999..bf3adc7 100644
--- a/arch/powerpc/include/asm/immap_85xx.h
+++ b/arch/powerpc/include/asm/immap_85xx.h
@@ -1802,6 +1802,7 @@ defined(CONFIG_PPC_T1020) || defined(CONFIG_PPC_T1022)
 #define FSL_CORENET_RCWSR13_EC2			0x0c000000
 #define FSL_CORENET_RCWSR13_EC2_RGMII		0x08000000
 #define CONFIG_SYS_FSL_SCFG_PIXCLKCR_OFFSET	0x28
+#define CONFIG_SYS_FSL_SCFG_IODSECR1_OFFSET	0xd00
 #define PXCKEN_MASK				0x80000000
 #define PXCK_MASK				0x00FF0000
 #define PXCK_BITS_START				16
@@ -3051,6 +3052,8 @@ struct ccsr_sfp_regs {
 	(CONFIG_SYS_CCSRBAR + CONFIG_SYS_FSL_SCFG_OFFSET)
 #define CONFIG_SYS_FSL_SCFG_PIXCLK_ADDR	\
 	(CONFIG_SYS_FSL_SCFG_ADDR + CONFIG_SYS_FSL_SCFG_PIXCLKCR_OFFSET)
+#define CONFIG_SYS_FSL_SCFG_IODSECR1_ADDR \
+	(CONFIG_SYS_FSL_SCFG_ADDR + CONFIG_SYS_FSL_SCFG_IODSECR1_OFFSET)
 #define CONFIG_SYS_FSL_QMAN_ADDR \
 	(CONFIG_SYS_IMMR + CONFIG_SYS_FSL_QMAN_OFFSET)
 #define CONFIG_SYS_FSL_BMAN_ADDR \
diff --git a/board/freescale/t102xqds/t102xqds.c b/board/freescale/t102xqds/t102xqds.c
index f7fc869..013024e 100644
--- a/board/freescale/t102xqds/t102xqds.c
+++ b/board/freescale/t102xqds/t102xqds.c
@@ -220,6 +220,10 @@ int board_early_init_r(void)
 #endif
 	select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
 	board_mux_lane_to_slot();
+
+	/* Increase IO drive strength to address FCS error on RGMII */
+	out_be32((unsigned *)CONFIG_SYS_FSL_SCFG_IODSECR1_ADDR, 0xbfdb7800);
+
 	return 0;
 }
 
diff --git a/board/freescale/t102xrdb/t102xrdb.c b/board/freescale/t102xrdb/t102xrdb.c
index b1211d7..f1e19c4 100644
--- a/board/freescale/t102xrdb/t102xrdb.c
+++ b/board/freescale/t102xrdb/t102xrdb.c
@@ -87,6 +87,9 @@ int board_early_init_r(void)
 	setup_portals();
 #endif
 
+	/* Increase IO drive strength to address FCS error on RGMII */
+	out_be32((unsigned *)CONFIG_SYS_FSL_SCFG_IODSECR1_ADDR, 0xbfdb7800);
+
 	return 0;
 }
 
-- 
2.1.0.27.g96db324