Hi,
On Mon, Jan 26, 2015 at 10:56:40AM -0600, Felipe Balbi wrote:
> > the references below are from SPRUHL7
> >
> > On Fri, 23 Jan 2015, Felipe Balbi wrote:
> >
> > > Without hwmod data for DebugSS, performance monitors
> > > have no chance of running on AM43xx devices.
> > >
> > > Signed-off-by: Felipe Balbi <balbi@xxxxxx>
> > > ---
> > > arch/arm/mach-omap2/omap_hwmod_43xx_data.c | 40 ++++++++++++++++++++++++++++++
> > > arch/arm/mach-omap2/prcm43xx.h | 1 +
> > > 2 files changed, 41 insertions(+)
> > >
> > > diff --git a/arch/arm/mach-omap2/omap_hwmod_43xx_data.c b/arch/arm/mach-omap2/omap_hwmod_43xx_data.c
> > > index 5c6c8410160e..6709704dd5b5 100644
> > > --- a/arch/arm/mach-omap2/omap_hwmod_43xx_data.c
> > > +++ b/arch/arm/mach-omap2/omap_hwmod_43xx_data.c
> > > @@ -19,6 +19,7 @@
> > > #include "omap_hwmod.h"
> > > #include "omap_hwmod_33xx_43xx_common_data.h"
> > > #include "prcm43xx.h"
> > > +#include "prm44xx.h"
> > > #include "omap_hwmod_common_data.h"
> > >
> > >
> > > @@ -60,6 +61,44 @@ static struct omap_hwmod am43xx_wkup_m3_hwmod = {
> > > .rst_lines_cnt = ARRAY_SIZE(am33xx_wkup_m3_resets),
> > > };
> > >
> > > +/*
> > > + * 'debugss' class
> > > + * debug and emulation sub system
> > > + */
> > > +static struct omap_hwmod_opt_clk am43xx_debugss_opt_clks[] = {
> > > + { .role = "dbg_sysclk", .clk = "dbg_sysclk_ck" },
> > > + { .role = "dbg_clka", .clk = "dbg_clka_ck", },
> > > + { .role = "dbg_clkb", .clk = "dbg_clkb_ck", },
> > > + { .role = "dbg_clkc", .clk = "dbg_clkc_ck", },
> > > +};
> > > +
> > > +static struct omap_hwmod_class am43xx_debugss_hwmod_class = {
> > > + .name = "debugss",
> > > +};
> > > +
> > > +/* debugss */
> > > +static struct omap_hwmod am43xx_debugss_hwmod = {
> > > + .name = "debugss",
> > > + .class = &am43xx_debugss_hwmod_class,
> > > + .clkdm_name = "l3_aon_clkdm",
> > > + .main_clk = "trace_clk_div_ck",
> > > + .prcm = {
> > > + .omap4 = {
> > > + .clkctrl_offs = AM43XX_CM_WKUP_DBGSS_CLKCTRL_OFFSET,
> >
> > According to Table 6-275 "PRCM_CM_WKUP_DBGSS_CLKCTRL Register Field
> > Descriptions" this should have a
> >
> > .modulemode = MODULEMODE_SWCTRL,
>
> hm... modulemode SWCTRL causes wait_target_ready to fail. Any hints ?
gets stuck in transition state. PRCM_CM_WKUP_DBGSS_CLKCTRL is always
read as 0x 12510f00 which would translate into:
- module disabled
- all opt clocks are on
- module is transitioning
- module in standby
- clkA as TPIU and STM trace clock
- all dividers set to 2
--
balbi
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