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board: gateworks: venice: delay before reading GSC EEPROM

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Extensive testing has shown that at higher temperatures operating
without a GSC backup battery, the GSC needs a small delay after
releasing the I2C SDA/SCL pins before it is ready to handle I2C
requests.

Add a delay to avoid errors such as:
wait_for_sr_state: Arbitration lost sr=93 cr=80 state=2020
i2c_init_transfer: failed for chip 0x20 retry=0

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
This commit is contained in:
Tim Harvey 2024-06-19 14:13:22 -07:00 • committed by Fabio Estevam
parent ef0b5b61f4
commit 87a4e5b3a4
1 changed files with 1 additions and 0 deletions
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board/gateworks/venice/spl.c
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@ -302,6 +302,7 @@ void board_init_f(ulong dummy)
mdelay(10);
}
pinctrl_select_state(bus, "default");
mdelay(10);
}
}
/* Wait indefiniately until the GSC probes */