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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
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