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ARM: rmobile: Fix broken reset code on Porter

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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>
This commit is contained in:
Marek Vasut 2018-02-17 02:16:48 +01:00 committed by Marek Vasut
parent a6e50da0d5
commit 25f6dc8955
1 changed files with 18 additions and 5 deletions
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23
board/renesas/porter/porter.c
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@ -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