[PATCH V2 03/10] ARM: OMAP4: Re-map the CTIs IRQs from MPU to DEBUGSS

[Pandita, Vikram]

On Thu, Jun 7, 2012 at 2:22 PM, Jon Hunter <jon-hunter at ti.com> wrote:
> In order to use the CTI interrupts inconjunction with the DEBUGSS we need to
> re-map the CTI IRQs to the DEBUGSS HWMOD. The purpose for doing this is so we
> can create a PMU device based upon the DEBUGSS HWMOD and use the CTI interrupts
> for routing ARM PMU events for OMAP4430 devices.
>
> This is based upon Benoit Cousson's patch [1].
>
> [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2011-November/073319.html
>
> Cc: Ming Lei <ming.lei at canonical.com>
> Cc: Will Deacon <will.deacon at arm.com>
> Cc: Benoit Cousson <b-cousson at ti.com>
> Cc: Paul Walmsley <paul at pwsan.com>
> Cc: Kevin Hilman <khilman at ti.com>
>
> Reviewed-by: Santosh Shilimkar <santosh.shilimkar at ti.com>
> Signed-off-by: Jon Hunter <jon-hunter at ti.com>
> ---
>  arch/arm/mach-omap2/omap_hwmod_44xx_data.c |    9 +++++++--
>  1 file changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
> index 950454a..faf5a6d 100644
> --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
> +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
> @@ -482,10 +482,17 @@ static struct omap_hwmod_class omap44xx_debugss_hwmod_class = {
>  };
>
>  /* debugss */
> +static struct omap_hwmod_irq_info omap44xx_debugss_irqs[] = {
> +       { .name = "cti0", .irq = 1 + OMAP44XX_IRQ_GIC_START },
> +       { .name = "cti1", .irq = 2 + OMAP44XX_IRQ_GIC_START },

Data manual assigns cit0 == MA_IRQ_1 and cti1 == MA_IRQ_2
Why do you add 32 base GIC_START ?

> +       { .irq = -1 }
> +};
> +
>  static struct omap_hwmod omap44xx_debugss_hwmod = {
>        .name           = "debugss",
>        .class          = &omap44xx_debugss_hwmod_class,
>        .clkdm_name     = "emu_sys_clkdm",
> +       .mpu_irqs       = omap44xx_debugss_irqs,
>        .main_clk       = "trace_clk_div_ck",
>        .prcm = {
>                .omap4 = {
> @@ -2447,8 +2454,6 @@ static struct omap_hwmod_class omap44xx_mpu_hwmod_class = {
>  /* mpu */
>  static struct omap_hwmod_irq_info omap44xx_mpu_irqs[] = {
>        { .name = "pl310", .irq = 0 + OMAP44XX_IRQ_GIC_START },
> -       { .name = "cti0", .irq = 1 + OMAP44XX_IRQ_GIC_START },
> -       { .name = "cti1", .irq = 2 + OMAP44XX_IRQ_GIC_START },
>        { .irq = -1 }
>  };
>
> --
> 1.7.9.5
>
>
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