From e6b1b58bedbc507f840b2bae06eadb1d34512efa Mon Sep 17 00:00:00 2001 From: Yegor Yefremov Date: Mon, 6 Jul 2015 17:28:35 +0200 Subject: arm: baltos: drop I2C speed to 1000 Hz This action is need to make I2C communication with PMIC stable for low temperature. Print current I2C speed in SPL for visual control. Signed-off-by: Yegor Yefremov --- board/vscom/baltos/board.c | 2 ++ include/configs/baltos.h | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/board/vscom/baltos/board.c b/board/vscom/baltos/board.c index 99ca60e..09bc8c6 100644 --- a/board/vscom/baltos/board.c +++ b/board/vscom/baltos/board.c @@ -184,6 +184,8 @@ void am33xx_spl_board_init(void) */ i2c_set_bus_num(1); + printf("I2C speed: %d Hz\n", CONFIG_SYS_OMAP24_I2C_SPEED); + if (i2c_probe(TPS65910_CTRL_I2C_ADDR)) { puts("i2c: cannot access TPS65910\n"); return; diff --git a/include/configs/baltos.h b/include/configs/baltos.h index 632523e..31de97f 100644 --- a/include/configs/baltos.h +++ b/include/configs/baltos.h @@ -52,7 +52,7 @@ /* I2C configuration */ #undef CONFIG_SYS_OMAP24_I2C_SPEED -#define CONFIG_SYS_OMAP24_I2C_SPEED 10000 +#define CONFIG_SYS_OMAP24_I2C_SPEED 1000 #ifdef CONFIG_NAND #define CONFIG_SYS_NAND_U_BOOT_OFFS 0x000c0000 -- cgit v1.1