ARM: rmobile: Fix broken reset code on Porter
The 'reset' command did not work on Porter because the reset code
was accessing the wrong PMIC address over broken I2C bus driver.
Replace the code with DM-aware code and fix up the PMIC address.
This makes the 'reset' command work again.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/board/renesas/porter/porter.c b/board/renesas/porter/porter.c
index dfefd7f..320841f 100644
--- a/board/renesas/porter/porter.c
+++ b/board/renesas/porter/porter.c
@@ -116,12 +116,25 @@
void reset_cpu(ulong addr)
{
- u8 val;
+ struct udevice *dev;
+ const u8 pmic_bus = 6;
+ const u8 pmic_addr = 0x5a;
+ u8 data;
+ int ret;
- i2c_set_bus_num(2); /* PowerIC connected to ch2 */
- i2c_read(CONFIG_SYS_I2C_POWERIC_ADDR, 0x13, 1, &val, 1);
- val |= 0x02;
- i2c_write(CONFIG_SYS_I2C_POWERIC_ADDR, 0x13, 1, &val, 1);
+ ret = i2c_get_chip_for_busnum(pmic_bus, pmic_addr, 1, &dev);
+ if (ret)
+ hang();
+
+ ret = dm_i2c_read(dev, 0x13, &data, 1);
+ if (ret)
+ hang();
+
+ data |= BIT(1);
+
+ ret = dm_i2c_write(dev, 0x13, &data, 1);
+ if (ret)
+ hang();
}
#ifdef CONFIG_SPL_BUILD