From 87a4e5b3a41f5b13dd86c8661ee92f58098c10ac Mon Sep 17 00:00:00 2001 From: Tim Harvey Date: Wed, 19 Jun 2024 14:13:22 -0700 Subject: [PATCH] board: gateworks: venice: delay before reading GSC EEPROM 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 --- board/gateworks/venice/spl.c | 1 + 1 file changed, 1 insertion(+) diff --git a/board/gateworks/venice/spl.c b/board/gateworks/venice/spl.c index 04dc0d66ea..e9cdede621 100644 --- a/board/gateworks/venice/spl.c +++ b/board/gateworks/venice/spl.c @@ -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 */ -- 2.39.5