diff options
Diffstat (limited to 'extras/recipes-kernel/linux/linux-omap/dvfs/0019-OMAP3-beagle-xm-enable-upto-1GHz-OPP.patch')
| -rw-r--r-- | extras/recipes-kernel/linux/linux-omap/dvfs/0019-OMAP3-beagle-xm-enable-upto-1GHz-OPP.patch | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/extras/recipes-kernel/linux/linux-omap/dvfs/0019-OMAP3-beagle-xm-enable-upto-1GHz-OPP.patch b/extras/recipes-kernel/linux/linux-omap/dvfs/0019-OMAP3-beagle-xm-enable-upto-1GHz-OPP.patch new file mode 100644 index 00000000..9d1fa917 --- /dev/null +++ b/extras/recipes-kernel/linux/linux-omap/dvfs/0019-OMAP3-beagle-xm-enable-upto-1GHz-OPP.patch @@ -0,0 +1,107 @@ +From 897e90138695dccac0dca1601542fd5f4c85b657 Mon Sep 17 00:00:00 2001 +From: Nishanth Menon <nm@ti.com> +Date: Wed, 5 Jan 2011 14:16:59 -0600 +Subject: [PATCH 19/20] OMAP3: beagle xm: enable upto 1GHz OPP + +Beagle XM uses 3730 and the board design allows enabling 800MHz and 1GHz +OPPs. tweak the default table to allow for higher OPP tables + +Reported-by: Koen Kooi <koen@beagleboard.org> +Signed-off-by: Nishanth Menon <nm@ti.com> +--- + arch/arm/mach-omap2/board-omap3beagle.c | 54 +++++++++++++++++++++++++++++++ + 1 files changed, 54 insertions(+), 0 deletions(-) + +diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c +index ad0c1d8..1e0870e 100644 +--- a/arch/arm/mach-omap2/board-omap3beagle.c ++++ b/arch/arm/mach-omap2/board-omap3beagle.c +@@ -24,6 +24,7 @@ + #include <linux/irq.h> + #include <linux/input.h> + #include <linux/gpio_keys.h> ++#include <linux/opp.h> + + #include <linux/mtd/mtd.h> + #include <linux/mtd/partitions.h> +@@ -45,10 +46,12 @@ + #include <plat/gpmc.h> + #include <plat/nand.h> + #include <plat/usb.h> ++#include <plat/omap_device.h> + + #include "mux.h" + #include "hsmmc.h" + #include "timer-gp.h" ++#include "pm.h" + + #define NAND_BLOCK_SIZE SZ_128K + +@@ -804,6 +807,56 @@ static int __init expansionboard_setup(char *str) + return 0; + } + ++static void __init beagle_opp_init(void) ++{ ++ int r = 0; ++ ++ /* Initialize the omap3 opp table */ ++ if (omap3_opp_init()) { ++ pr_err("%s: opp default init failed\n", __func__); ++ return; ++ } ++ ++ /* Custom OPP enabled for XM */ ++ if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) { ++ 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); ++ r = -EINVAL; ++ } else { ++ /* Enable MPU 1GHz and lower opps */ ++ dev = &mh->od->pdev.dev; ++ r = opp_enable(dev, 800000000); ++ r |= opp_enable(dev, 1000000000); ++ ++ /* Enable IVA 800MHz and lower opps */ ++ dev = &dh->od->pdev.dev; ++ r |= opp_enable(dev, 660000000); ++ r |= opp_enable(dev, 800000000); ++ } ++ 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, 800000000); ++ opp_disable(dev, 1000000000); ++ dev = &dh->od->pdev.dev; ++ opp_disable(dev, 660000000); ++ opp_disable(dev, 800000000); ++ } else { ++ pr_err("%s: turbo OPPs enabled!\n", __func__); ++ } ++ } ++} ++ + static void __init omap3_beagle_init(void) + { + omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); +@@ -876,6 +929,7 @@ static void __init omap3_beagle_init(void) + omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT); + + beagle_display_init(); ++ beagle_opp_init(); + } + + early_param("buddy", expansionboard_setup); +-- +1.6.6.1 + |