Paul,

On 06/15/2014 11:43 PM, Paul Walmsley wrote:
Dave,

On Mon, 9 Jun 2014, Dave Gerlach wrote:

am43xx reset register layout is more similar to am33xx than omap4 so
use the am33xx functions for hwmod hardreset soc_ops rather than the
currently used omap4 functions. Without this, assert_hardreset and
deassert_hardreset will not work on am43xx.

Signed-off-by: Dave Gerlach <[email protected]>
---
  arch/arm/mach-omap2/omap_hwmod.c | 6 +++---
  1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 66c60fe..1c0885b 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -4251,9 +4251,9 @@ void __init omap_hwmod_init(void)
                soc_ops.enable_module = _omap4_enable_module;
                soc_ops.disable_module = _omap4_disable_module;
                soc_ops.wait_target_ready = _omap4_wait_target_ready;
-               soc_ops.assert_hardreset = _omap4_assert_hardreset;
-               soc_ops.deassert_hardreset = _omap4_deassert_hardreset;
-               soc_ops.is_hardreset_asserted = _omap4_is_hardreset_asserted;
+               soc_ops.assert_hardreset = _am33xx_assert_hardreset;
+               soc_ops.deassert_hardreset = _am33xx_deassert_hardreset;
+               soc_ops.is_hardreset_asserted = _am33xx_is_hardreset_asserted;
                soc_ops.init_clkdm = _init_clkdm;
        } else if (soc_is_am33xx()) {
                soc_ops.enable_module = _am33xx_enable_module;

Should AM43XX be using the _am33xx_{enable,disable}_module and
wait_target_ready functions?

AM43xx has been using the _omap4_{enable,disable}_module functions without issue. Nothing is currently using the hardreset ops for am43xx which is why it went unnoticed but I saw the issue when I tried to use them for the wkup_m3 hwmod and they failed during internal development.

With that said, am43xx clockdomains have prcm_partition defined as part of their data which is only used by the _omap4_{enable,disable}_module functions and not the _am33xx functions so as the current configuration stands the _omap4 variants are the right choice.

Regards,
Dave



- Paul


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