Adjust i2c_raw_read() in sh_i2c.c to work for SH73A0. After this patch, "i2c md" and "i2c mw" command on U-Boot work properly on KZM-A9-GT board.
Acked-by: Nobuhiro Iwamatsu nobuhiro.iwamatsu.yj@renesas.com Signed-off-by: Tetsuyuki Kobayashi koba@kmckk.co.jp --- Changes for v2: - none Changes for v3: - none
drivers/i2c/sh_i2c.c | 4 ++++ include/configs/kzm9g.h | 2 +- 2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/i2c/sh_i2c.c b/drivers/i2c/sh_i2c.c index 03dfa7a..6c6a141 100644 --- a/drivers/i2c/sh_i2c.c +++ b/drivers/i2c/sh_i2c.c @@ -151,8 +151,12 @@ static u8 i2c_raw_read(struct sh_i2c *base, u8 id, u8 reg) { u8 ret;
+#if defined(CONFIG_SH73A0) + i2c_set_addr(base, id, reg, 0); +#else i2c_set_addr(base, id, reg, 1); udelay(100); +#endif
writeb((SH_I2C_ICCR_ICE|SH_I2C_ICCR_RTS|SH_I2C_ICCR_BUSY), &base->iccr); irq_dte(base); diff --git a/include/configs/kzm9g.h b/include/configs/kzm9g.h index 8877516..abeab69 100644 --- a/include/configs/kzm9g.h +++ b/include/configs/kzm9g.h @@ -164,7 +164,7 @@ #define CONFIG_SYS_I2C_SLAVE (0x7F) #define CONFIG_SH_I2C_DATA_HIGH (4) #define CONFIG_SH_I2C_DATA_LOW (5) -#define CONFIG_SH_I2C_CLOCK (41666666) +#define CONFIG_SH_I2C_CLOCK (104000000) /* 104 MHz */ #define CONFIG_SH_I2C_BASE0 (0xE6820000) #define CONFIG_SH_I2C_BASE1 (0xE6822000)