[PATCH 10/10] OMAP4: Add opp tables.

Thara Gopinath
2010-08-18T11:16:45Z

This patch adds OPP tables for OMAP4. A new file
opp44xx.c has been added to keep the OMAP4 opp tables
and the registeration of these tables with the generic
opp framework.

Signed-off-by: Thara Gopinath <thara@ti.com>
---
arch/arm/mach-omap2/Makefile | 2 +-
arch/arm/mach-omap2/opp44xx.h | 26 ++++++++++++
arch/arm/mach-omap2/opp44xx_data.c | 80 ++++++++++++++++++++++++++++++++++++
arch/arm/mach-omap2/pm.c | 6 ++-
4 files changed, 112 insertions(+), 2 deletions(-)
create mode 100644 arch/arm/mach-omap2/opp44xx.h
create mode 100644 arch/arm/mach-omap2/opp44xx_data.c

diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index d46fbec..ebe3f36 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -51,7 +51,7 @@ obj-$(CONFIG_ARCH_OMAP2) += pm24xx.o
obj-$(CONFIG_ARCH_OMAP2) += sleep24xx.o
obj-$(CONFIG_ARCH_OMAP3) += pm34xx.o sleep34xx.o voltage.o \
cpuidle34xx.o
-obj-$(CONFIG_ARCH_OMAP4) += pm44xx.o voltage.o
+obj-$(CONFIG_ARCH_OMAP4) += pm44xx.o voltage.o opp44xx_data.o
obj-$(CONFIG_PM_DEBUG) += pm-debug.o
obj-$(CONFIG_OMAP_SMARTREFLEX) += sr_device.o smartreflex.o
obj-$(CONFIG_OMAP_SMARTREFLEX_CLASS3) += smartreflex-class3.o
diff --git a/arch/arm/mach-omap2/opp44xx.h b/arch/arm/mach-omap2/opp44xx.h
new file mode 100644
index 0000000..2cae9f3
--- /dev/null
+++ b/arch/arm/mach-omap2/opp44xx.h
@@ -0,0 +1,26 @@
+/*
+ * OMAP4 OPP API's.
+ *
+ * Copyright (C) 2010 Texas Instruments Incorporated.
+ * Thara Gopinath
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ * History:
+ */
+
+#ifndef __ARCH_ARM_MACH_OMAP2_OPP44XX_H
+#define __ARCH_ARM_MACH_OMAP2_OPP44XX_H
+
+#ifdef CONFIG_PM
+extern int omap4_pm_init_opp_table(void);
+#else
+static inline int omap4_pm_init_opp_table(void) { return -EINVAL; }
+#endif
+
+#endif
diff --git a/arch/arm/mach-omap2/opp44xx_data.c b/arch/arm/mach-omap2/opp44xx_data.c
new file mode 100644
index 0000000..b5c9680
--- /dev/null
+++ b/arch/arm/mach-omap2/opp44xx_data.c
@@ -0,0 +1,80 @@
+/*
+ * OMAP4 OPP table definitions.
+ *
+ * Copyright (C) 2009 - 2010 Texas Instruments Incorporated.
+ * Nishanth Menon
+ * Copyright (C) 2009 - 2010 Deep Root Systems, LLC.
+ * Kevin Hilman
+ * Copyright (C) 2010 Nokia Corporation.
+ * Eduardo Valentin
+ * Copyright (C) 2010 Texas Instruments Incorporated.
+ * Thara Gopinath
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ * History:
+ */
+
+#include <linux/module.h>
+#include <linux/err.h>
+
+#include <plat/opp.h>
+#include <plat/cpu.h>
+
+#include "opp44xx.h"
+
+static struct omap_opp_def __initdata omap44xx_opp_def_list[] = {
+ /* MPU OPP1 - OPP50 */
+ OMAP_OPP_DEF("mpu", true, 300000000, 930000),
+ /* MPU OPP2 - OPP100 */
+ OMAP_OPP_DEF("mpu", true, 600000000, 1100000),
+ /* MPU OPP3 - OPP-Turbo */
+ OMAP_OPP_DEF("mpu", true, 800000000, 1260000),
+ /* MPU OPP4 - OPP-SB */
+ OMAP_OPP_DEF("mpu", true, 1008000000, 1350000),
+ /* IVA OPP1 - OPP50 */
+ OMAP_OPP_DEF("iva", true, 133000000, 930000),
+ /* IVA OPP2 - OPP100 */
+ OMAP_OPP_DEF("iva", true, 266000000, 1100000),
+ /* IVA OPP3 - OPP-Turbo */
+ OMAP_OPP_DEF("iva", false, 332000000, 1260000),
+ /* L3 OPP1 - OPP50 */
+ OMAP_OPP_DEF("l3_main_1", true, 100000000, 930000),
+ /* L3 OPP2 - OPP100, OPP-Turbo, OPP-SB */
+ OMAP_OPP_DEF("l3_main_1", true, 200000000, 1100000),
+};
+
+static u32 omap44xx_opp_def_size = ARRAY_SIZE(omap44xx_opp_def_list);
+
+/* Temp variable to allow multiple calls */
+static u8 __initdata omap4_table_init;
+
+
+int __init omap4_pm_init_opp_table(void)
+{
+ struct omap_opp_def *opp_def;
+ int i, r;
+
+ /*
+ * Allow multiple calls, but initialize only if not already initalized
+ * even if the previous call failed, coz, no reason we'd succeed again
+ */
+ if (omap4_table_init)
+ return 0;
+ omap4_table_init = 1;
+
+ opp_def = omap44xx_opp_def_list;
+
+ for (i = 0; i < omap44xx_opp_def_size; i++) {
+ r = opp_add(opp_def++);
+ if (r)
+ pr_err("unable to add OPP %ld Hz for %s\n",
+ opp_def->freq, opp_def->hwmod_name);
+ }
+ return 0;
+}
diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index 740e506..6707a2e 100644
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -19,6 +19,7 @@
#include <plat/common.h>

#include "omap3-opp.h"
+#include "opp44xx.h"

static struct omap_device_pm_latency *pm_lats;

@@ -90,7 +91,10 @@ static void omap2_init_processor_devices(void)
static int __init omap2_common_pm_init(void)
{
omap2_init_processor_devices();
- omap3_pm_init_opp_table();
+ if (cpu_is_omap34xx())
+ omap3_pm_init_opp_table();
+ else if (cpu_is_omap44xx())
+ omap4_pm_init_opp_table();

omap_pm_if_init();

--
1.7.1.GIT