Juha Yrjola <[email protected]> writes: > The reboot mode can be communicated to a bootloader (or the > kernel itself) with a scratchpad register. This functionality > is especially useful, if userspace is allowed to change > the reboot mode. > > Signed-off-by: Juha Yrjola <[email protected]>
Acked-by: Kevin Hilman <[email protected]> > --- > arch/arm/mach-omap2/prcm.c | 13 +++++++++++-- > 1 files changed, 11 insertions(+), 2 deletions(-) > > diff --git a/arch/arm/mach-omap2/prcm.c b/arch/arm/mach-omap2/prcm.c > index f945156..2f828cb 100644 > --- a/arch/arm/mach-omap2/prcm.c > +++ b/arch/arm/mach-omap2/prcm.c > @@ -43,9 +43,18 @@ void omap_prcm_arch_reset(char mode) > > if (cpu_is_omap24xx()) > prcm_offs = WKUP_MOD; > - else if (cpu_is_omap34xx()) > + else if (cpu_is_omap34xx()) { > + u32 l; > + > prcm_offs = OMAP3430_GR_MOD; > - else > + l = ('B' << 24) | ('M' << 16) | mode; > + /* Reserve the first word in scratchpad for communicating > + * with the boot ROM. A pointer to a data structure > + * describing the boot process can be stored there, > + * cf. OMAP34xx TRM, Initialization / Software Booting > + * Configuration. */ > + omap_writel(l, OMAP343X_SCRATCHPAD + 4); > + } else > WARN_ON(1); > > prm_set_mod_reg_bits(OMAP_RST_DPLL3, prcm_offs, RM_RSTCTRL); > -- > 1.6.1.3 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-omap" in > the body of a message to [email protected] > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
