On 04.08.2017 15:28, Marek BehĂșn wrote:
The I2C reading in the PEX vs SATA detection code often fails on the
first try. Try three times, as the code for EEPROM reading does.
Signed-off-by: Marek Behun <marek.be...@nic.cz>
---
board/CZ.NIC/turris_omnia/turris_omnia.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/board/CZ.NIC/turris_omnia/turris_omnia.c
b/board/CZ.NIC/turris_omnia/turris_omnia.c
index 86926f8050..a4275091d2 100644
--- a/board/CZ.NIC/turris_omnia/turris_omnia.c
+++ b/board/CZ.NIC/turris_omnia/turris_omnia.c
@@ -90,7 +90,7 @@ static struct serdes_map board_serdes_map_sata[] = {
static bool omnia_detect_sata(void)
{
struct udevice *bus, *dev;
- int ret;
+ int ret, retry = 3;
u16 mode;
puts("SERDES0 card detect: ");
@@ -106,8 +106,13 @@ static bool omnia_detect_sata(void)
return false;
}
- ret = dm_i2c_read(dev, OMNIA_I2C_MCU_ADDR_STATUS, (uchar *) &mode, 2);
- if (ret) {
+ for (; retry > 0; --retry) {
+ ret = dm_i2c_read(dev, OMNIA_I2C_MCU_ADDR_STATUS, (uchar *)
&mode, 2);
+ if (!ret)
+ break;
+ }
+
+ if (!retry) {
puts("I2C read failed! Default PEX\n");
return false;
}
Applied to u-boot-marvell/master.
Thanks,
Stefan
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