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+rene...@gmail.com>
Cc: Nobuhiro Iwamatsu <iwama...@nigauri.org>
---
 board/renesas/porter/porter.c | 23 ++++++++++++++++++-----
 1 file changed, 18 insertions(+), 5 deletions(-)

diff --git a/board/renesas/porter/porter.c b/board/renesas/porter/porter.c
index dfefd7fb71..320841f27b 100644
--- a/board/renesas/porter/porter.c
+++ b/board/renesas/porter/porter.c
@@ -116,12 +116,25 @@ const struct rmobile_sysinfo sysinfo = {
 
 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
-- 
2.15.1

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