[U-Boot] [PATCH v3 11/11] board: freescale: ls2080aqds: Enable early I2C access for QSPI boot

[Yuan Yao]

From: Yuan Yao <yao.yuan at nxp.com>

When QSPI boot is used, board FPGA is not accessible from IFC.
To use I2C interface instead, i2c needs to be initialized before knowing
the exact clock rate.

Signed-off-by: Yuan Yao <yao.yuan at nxp.com>
---
New add in v3.
---
 board/freescale/ls2080aqds/ls2080aqds.c | 3 +++
 include/configs/ls2080aqds.h            | 8 ++++----
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/board/freescale/ls2080aqds/ls2080aqds.c b/board/freescale/ls2080aqds/ls2080aqds.c
index 45dc298..23ebcc1 100644
--- a/board/freescale/ls2080aqds/ls2080aqds.c
+++ b/board/freescale/ls2080aqds/ls2080aqds.c
@@ -230,6 +230,9 @@ int board_init(void)
 
 int board_early_init_f(void)
 {
+#ifdef CONFIG_SYS_I2C_EARLY_INIT
+	i2c_early_init_f();
+#endif
 	fsl_lsch3_early_init_f();
 #ifdef CONFIG_FSL_QSPI
 	/* input clk: 1/2 platform clk, output: input/20 */
diff --git a/include/configs/ls2080aqds.h b/include/configs/ls2080aqds.h
index adb6901..97afda6 100644
--- a/include/configs/ls2080aqds.h
+++ b/include/configs/ls2080aqds.h
@@ -21,14 +21,14 @@ unsigned long get_board_ddr_clk(void);
 #ifdef CONFIG_FSL_QSPI
 #define CONFIG_SYS_NO_FLASH
 #undef CONFIG_CMD_IMLS
-#define CONFIG_SYS_CLK_FREQ		100000000
-#define CONFIG_DDR_CLK_FREQ		133333333
 #define CONFIG_QIXIS_I2C_ACCESS
 #define CONFIG_SYS_I2C_FPGA_ADDR	0x66
-#else
+#define CONFIG_SYS_I2C_EARLY_INIT
+#define CONFIG_SYS_I2C_IFDR_DIV		0x7e
+#endif
+
 #define CONFIG_SYS_CLK_FREQ		get_board_sys_clk()
 #define CONFIG_DDR_CLK_FREQ		get_board_ddr_clk()
-#endif
 #define COUNTER_FREQUENCY_REAL		(CONFIG_SYS_CLK_FREQ/4)
 
 #define CONFIG_DDR_SPD
-- 
2.1.0.27.g96db324