t1024qds: increase IO drive strength

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

Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>

arch/powerpc/include/asm/immap_85xx.h

@@ -1803,6 +1803,7 @@ 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
@@ -2990,6 +2991,8 @@ 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 \

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;
 }