mirror of
https://git.yoctoproject.org/meta-ti
synced 2026-07-16 22:38:04 +00:00
Koen Kooi
108 lines
2.8 KiB
Diff
108 lines
2.8 KiB
Diff
From 897e90138695dccac0dca1601542fd5f4c85b657 Mon Sep 17 00:00:00 2001
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From: Nishanth Menon <nm@ti.com>
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Date: Wed, 5 Jan 2011 14:16:59 -0600
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Subject: [PATCH 19/20] OMAP3: beagle xm: enable upto 1GHz OPP
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Beagle XM uses 3730 and the board design allows enabling 800MHz and 1GHz
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OPPs. tweak the default table to allow for higher OPP tables
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Reported-by: Koen Kooi <koen@beagleboard.org>
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Signed-off-by: Nishanth Menon <nm@ti.com>
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---
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arch/arm/mach-omap2/board-omap3beagle.c | 54 +++++++++++++++++++++++++++++++
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1 files changed, 54 insertions(+), 0 deletions(-)
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diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
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index ad0c1d8..1e0870e 100644
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--- a/arch/arm/mach-omap2/board-omap3beagle.c
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+++ b/arch/arm/mach-omap2/board-omap3beagle.c
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@@ -24,6 +24,7 @@
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#include <linux/irq.h>
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#include <linux/input.h>
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#include <linux/gpio_keys.h>
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+#include <linux/opp.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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@@ -45,10 +46,12 @@
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#include <plat/gpmc.h>
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#include <plat/nand.h>
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#include <plat/usb.h>
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+#include <plat/omap_device.h>
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#include "mux.h"
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#include "hsmmc.h"
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#include "timer-gp.h"
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+#include "pm.h"
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#define NAND_BLOCK_SIZE SZ_128K
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@@ -804,6 +807,56 @@ static int __init expansionboard_setup(char *str)
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return 0;
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}
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+static void __init beagle_opp_init(void)
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+{
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+ int r = 0;
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+
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+ /* Initialize the omap3 opp table */
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+ if (omap3_opp_init()) {
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+ pr_err("%s: opp default init failed\n", __func__);
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+ return;
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+ }
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+
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+ /* Custom OPP enabled for XM */
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+ if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
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+ struct omap_hwmod *mh = omap_hwmod_lookup("mpu");
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+ struct omap_hwmod *dh = omap_hwmod_lookup("iva");
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+ struct device *dev;
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+
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+ if (!mh || !dh) {
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+ pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
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+ __func__, mh, dh);
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+ r = -EINVAL;
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+ } else {
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+ /* Enable MPU 1GHz and lower opps */
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+ dev = &mh->od->pdev.dev;
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+ r = opp_enable(dev, 800000000);
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+ r |= opp_enable(dev, 1000000000);
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+
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+ /* Enable IVA 800MHz and lower opps */
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+ dev = &dh->od->pdev.dev;
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+ r |= opp_enable(dev, 660000000);
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+ r |= opp_enable(dev, 800000000);
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+ }
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+ if (r) {
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+ pr_err("%s: failed to enable higher opp %d\n",
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+ __func__, r);
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+ /*
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+ * Cleanup - disable the higher freqs - we dont care
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+ * about the results
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+ */
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+ dev = &mh->od->pdev.dev;
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+ opp_disable(dev, 800000000);
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+ opp_disable(dev, 1000000000);
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+ dev = &dh->od->pdev.dev;
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+ opp_disable(dev, 660000000);
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+ opp_disable(dev, 800000000);
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+ } else {
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+ pr_err("%s: turbo OPPs enabled!\n", __func__);
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+ }
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+ }
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+}
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+
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static void __init omap3_beagle_init(void)
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{
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omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
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@@ -876,6 +929,7 @@ static void __init omap3_beagle_init(void)
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omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
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beagle_display_init();
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+ beagle_opp_init();
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}
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early_param("buddy", expansionboard_setup);
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--
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1.6.6.1
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