kernel_samsung_a53x/drivers/net/dsa
Anatolij Gustschin 320b2db211 net: dsa: lan9303: ensure chip reset and wait for READY status
commit 5c14e51d2d7df49fe0d4e64a12c58d2542f452ff upstream.

Accessing device registers seems to be not reliable, the chip
revision is sometimes detected wrongly (0 instead of expected 1).

Ensure that the chip reset is performed via reset GPIO and then
wait for 'Device Ready' status in HW_CFG register before doing
any register initializations.

Cc: stable@vger.kernel.org
Fixes: a1292595e006 ("net: dsa: add new DSA switch driver for the SMSC-LAN9303")
Signed-off-by: Anatolij Gustschin <agust@denx.de>
[alex: reworked using read_poll_timeout()]
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://patch.msgid.link/20241004113655.3436296-1-alexander.sverdlin@siemens.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-23 23:21:53 +01:00
..
b53 net: dsa: b53: fix jumbo frames on 10/100 ports 2024-11-23 23:21:51 +01:00
microchip net: dsa: microchip: fix initial port flush problem 2024-11-19 14:19:31 +01:00
mv88e6xxx net: dsa: mv88e6xxx: Fix out-of-bound access 2024-11-23 23:20:48 +01:00
ocelot
qca
sja1105
bcm_sf2.c net: dsa: bcm_sf2: Fix a possible memory leak in bcm_sf2_mdio_register() 2024-11-23 23:20:22 +01:00
bcm_sf2.h
bcm_sf2_cfp.c
bcm_sf2_regs.h
dsa_loop.c
dsa_loop.h
dsa_loop_bdinfo.c
Kconfig
lan9303-core.c net: dsa: lan9303: ensure chip reset and wait for READY status 2024-11-23 23:21:53 +01:00
lan9303.h
lan9303_i2c.c
lan9303_mdio.c
lantiq_gswip.c
lantiq_pce.h
Makefile
mt7530.c net: dsa: mt7530: prevent possible incorrect XTAL frequency selection 2024-11-19 08:44:59 +01:00
mt7530.h
mv88e6060.c
mv88e6060.h
qca8k.c
qca8k.h
realtek-smi-core.c
realtek-smi-core.h
rtl8366.c
rtl8366rb.c
vitesse-vsc73xx-core.c net: dsa: vsc73xx: fix possible subblocks range of CAPT block 2024-11-23 23:21:04 +01:00
vitesse-vsc73xx-platform.c
vitesse-vsc73xx-spi.c
vitesse-vsc73xx.h