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linux/drivers/soc/ti
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Tony Lindgren b232537074 soc: ti: omap-prm: Fix external abort for am335x pruss 
Starting with v5.15-rc1, we may now see some am335x beaglebone black
device produce the following error on pruss probe:

Unhandled fault: external abort on non-linefetch (0x1008) at 0xe0326000

This has started with the enabling of pruss for am335x in the dts files.

Turns out the is caused by the PRM reset handling not waiting for the
reset bit to clear. To fix the issue, let's always wait for the reset
bit to clear, even if there is a separate reset status register.

We attempted to fix a similar issue for dra7 iva with a udelay() in
commit effe89e400 ("soc: ti: omap-prm: Fix occasional abort on reset
deassert for dra7 iva"). There is no longer a need for the udelay()
for dra7 iva reset either with the check added for reset bit clearing.

Cc: Drew Fustini <pdp7pdp7@gmail.com>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: "H. Nikolaus Schaller" <hns@goldelico.com>
Cc: Robert Nelson <robertcnelson@gmail.com>
Cc: Yongqin Liu <yongqin.liu@linaro.org>
Fixes: effe89e400 ("soc: ti: omap-prm: Fix occasional abort on reset deassert for dra7 iva")
Reported-by: Matti Vaittinen <mazziesaccount@gmail.com>
Tested-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2021-09-30 11:30:03 +03:00
..
k3-ringacc.c soc: ti: k3-ringacc: Use of_device_get_match_data() 2021-01-31 20:58:49 -08:00
k3-socinfo.c soc: ti: k3-socinfo: Add entry for AM64X SoC family 2020-11-01 19:38:05 -08:00
Kconfig soc: ti: Kconfig: Drop ARM64 SoC specific configs 2020-11-21 19:22:01 -08:00
knav_dma.c soc: ti: knav_qmss: Put refcount for dev node in failure case 2021-01-24 20:51:36 -08:00
knav_qmss_acc.c soc: TI knav_qmss: make symbol 'knav_acc_range_ops' static 2020-07-24 14:47:10 -07:00
knav_qmss_queue.c soc: ti: knav_qmss: Put refcount for dev node in failure case 2021-01-24 20:51:36 -08:00
knav_qmss.h soc: ti: Replace zero-length array with flexible-array 2020-06-15 23:08:32 -05:00
Makefile ARM: SoC-related driver updates 2020-10-24 10:39:22 -07:00
omap_prm.c soc: ti: omap-prm: Fix external abort for am335x pruss 2021-09-30 11:30:03 +03:00
pm33xx.c soc: ti: pm33xx: Fix some resource leak in the error handling paths of the probe function 2021-01-24 20:51:36 -08:00
pruss.c soc: ti: pruss: Enable support for ICSSG subsystems on K3 AM64x SoCs 2021-08-10 15:51:22 -07:00
smartreflex.c soc: ti: Remove pm_runtime_irq_safe() usage for smartreflex 2021-08-10 15:51:22 -07:00
ti_sci_inta_msi.c soc: ti: ti_sci_inta_msi: Add support for second range in resource ranges 2020-11-01 19:38:00 -08:00
ti_sci_pm_domains.c soc: ti: ti_sci_pm_domains: check for proper args count in xlate 2020-10-29 22:13:38 +01:00
wkup_m3_ipc.c soc: ti: wkup_m3_ipc: Remove redundant error printing in wkup_m3_ipc_probe() 2021-06-04 13:04:13 -07:00