Op 8 jul. 2011 om 16:56 heeft Tero Kristo <t-kristo@xxxxxx> het volgende geschreven:
> Beagleboard rev-c4 has a speed sorted OMAP3530 chip which can run at 720MHz.
>
> Signed-off-by: Tero Kristo <t-kristo@xxxxxx>
> ---
> arch/arm/mach-omap2/board-omap3beagle.c | 32 +++++++++++++++++++++++++++++++
> arch/arm/mach-omap2/opp3xxx_data.c | 4 +++
> 2 files changed, 36 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
> index 6d3a266..bc3e5ed 100644
> --- a/arch/arm/mach-omap2/board-omap3beagle.c
> +++ b/arch/arm/mach-omap2/board-omap3beagle.c
> @@ -574,6 +574,38 @@ static void __init beagle_opp_init(void)
> return;
> }
>
> + /* Custom OPP enabled for C4 */
> + if (omap3_beagle_version == OMAP3BEAGLE_BOARD_C4) {
The 720 capable chips have a sku id you can read, so this is better done in the core code. Sanjeev Premi has been trying to get that merged for a while now, so please take this issue up with him.
> + struct omap_hwmod *mh = omap_hwmod_lookup("mpu");
> + struct omap_hwmod *dh = omap_hwmod_lookup("iva");
> + struct device *dev;
> +
> + if (!mh || !dh) {
> + pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
> + __func__, mh, dh);
> + }
> + /* Enable MPU 720MHz opp */
> + dev = &mh->od->pdev.dev;
> + r = opp_enable(dev, 720000000);
> +
> + /* Enable IVA 520MHz opp */
> + dev = &dh->od->pdev.dev;
> + r |= opp_enable(dev, 520000000);
> +
> + if (r) {
> + pr_err("%s: failed to enable higher opp %d\n",
> + __func__, r);
> + /*
> + * Cleanup - disable the higher freqs - we dont care
> + * about the results
> + */
> + dev = &mh->od->pdev.dev;
> + opp_disable(dev, 720000000);
> + dev = &dh->od->pdev.dev;
> + opp_disable(dev, 520000000);
> + }
> + }
> +
> /* Custom OPP enabled for all xM versions */
> if (cpu_is_omap3630()) {
> struct omap_hwmod *mh = omap_hwmod_lookup("mpu");
> diff --git a/arch/arm/mach-omap2/opp3xxx_data.c b/arch/arm/mach-omap2/opp3xxx_data.c
> index d95f3f9..a0f5fe1 100644
> --- a/arch/arm/mach-omap2/opp3xxx_data.c
> +++ b/arch/arm/mach-omap2/opp3xxx_data.c
> @@ -98,6 +98,8 @@ static struct omap_opp_def __initdata omap34xx_opp_def_list[] = {
> OPP_INITIALIZER("mpu", true, 550000000, OMAP3430_VDD_MPU_OPP4_UV),
> /* MPU OPP5 */
> OPP_INITIALIZER("mpu", true, 600000000, OMAP3430_VDD_MPU_OPP5_UV),
> + /* MPU OPP6 : omap3530 high speed grade only */
> + OPP_INITIALIZER("mpu", false, 720000000, OMAP3430_VDD_MPU_OPP5_UV),
>
> /*
> * L3 OPP1 - 41.5 MHz is disabled because: The voltage for that OPP is
> @@ -123,6 +125,8 @@ static struct omap_opp_def __initdata omap34xx_opp_def_list[] = {
> OPP_INITIALIZER("iva", true, 400000000, OMAP3430_VDD_MPU_OPP4_UV),
> /* DSP OPP5 */
> OPP_INITIALIZER("iva", true, 430000000, OMAP3430_VDD_MPU_OPP5_UV),
> + /* DSP OPP6 : omap3530 high speed grade only */
> + OPP_INITIALIZER("iva", false, 520000000, OMAP3430_VDD_MPU_OPP5_UV),
> };
>
> static struct omap_opp_def __initdata omap36xx_opp_def_list[] = {
> --
> 1.7.4.1
>
>
> Texas Instruments Oy, Tekniikantie 12, 02150 Espoo. Y-tunnus: 0115040-6. Kotipaikka: Helsinki
>
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-omap" in
> the body of a message to majordomo@xxxxxxxxxxxxxxx
> 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 majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
