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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c
Initial import
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diff --git a/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c b/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c
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+/*
+ * OMAP2/3 clockdomain common data
+ *
+ * Copyright (C) 2008-2011 Texas Instruments, Inc.
+ * Copyright (C) 2008-2010 Nokia Corporation
+ *
+ * Paul Walmsley, Jouni Högander
+ *
+ * This file contains clockdomains and clockdomain wakeup/sleep
+ * dependencies for the OMAP2/3 chips. Some notes:
+ *
+ * A useful validation rule for struct clockdomain: Any clockdomain
+ * referenced by a wkdep_srcs or sleepdep_srcs array must have a
+ * dep_bit assigned. So wkdep_srcs/sleepdep_srcs are really just
+ * software-controllable dependencies. Non-software-controllable
+ * dependencies do exist, but they are not encoded below (yet).
+ *
+ * 24xx does not support programmable sleep dependencies (SLEEPDEP)
+ *
+ * The overly-specific dep_bit names are due to a bit name collision
+ * with CM_FCLKEN_{DSP,IVA2}. The DSP/IVA2 PM_WKDEP and CM_SLEEPDEP shift
+ * value are the same for all powerdomains: 2
+ *
+ * XXX should dep_bit be a mask, so we can test to see if it is 0 as a
+ * sanity check?
+ * XXX encode hardware fixed wakeup dependencies -- esp. for 3430 CORE
+ */
+
+/*
+ * To-Do List
+ * -> Port the Sleep/Wakeup dependencies for the domains
+ * from the Power domain framework
+ */
+
+#include <linux/kernel.h>
+#include <linux/io.h>
+
+#include "clockdomain.h"
+#include "prm2xxx_3xxx.h"
+#include "cm2xxx_3xxx.h"
+#include "cm-regbits-24xx.h"
+#include "cm-regbits-34xx.h"
+#include "cm-regbits-44xx.h"
+#include "prm-regbits-24xx.h"
+#include "prm-regbits-34xx.h"
+
+/*
+ * Clockdomain dependencies for wkdeps/sleepdeps
+ *
+ * XXX Hardware dependencies (e.g., dependencies that cannot be
+ * changed in software) are not included here yet, but should be.
+ */
+
+/* Wakeup dependency source arrays */
+
+/* 2xxx-specific possible dependencies */
+
+/* 2xxx PM_WKDEP_GFX: CORE, MPU, WKUP */
+struct clkdm_dep gfx_24xx_wkdeps[] = {
+ { .clkdm_name = "core_l3_clkdm" },
+ { .clkdm_name = "core_l4_clkdm" },
+ { .clkdm_name = "mpu_clkdm" },
+ { .clkdm_name = "wkup_clkdm" },
+ { NULL },
+};
+
+/* 2xxx PM_WKDEP_DSP: CORE, MPU, WKUP */
+struct clkdm_dep dsp_24xx_wkdeps[] = {
+ { .clkdm_name = "core_l3_clkdm" },
+ { .clkdm_name = "core_l4_clkdm" },
+ { .clkdm_name = "mpu_clkdm" },
+ { .clkdm_name = "wkup_clkdm" },
+ { NULL },
+};
+
+
+/*
+ * OMAP2/3-common clockdomains
+ *
+ * Even though the 2420 has a single PRCM module from the
+ * interconnect's perspective, internally it does appear to have
+ * separate PRM and CM clockdomains. The usual test case is
+ * sys_clkout/sys_clkout2.
+ */
+
+/* This is an implicit clockdomain - it is never defined as such in TRM */
+struct clockdomain wkup_common_clkdm = {
+ .name = "wkup_clkdm",
+ .pwrdm = { .name = "wkup_pwrdm" },
+ .dep_bit = OMAP_EN_WKUP_SHIFT,
+ .flags = CLKDM_ACTIVE_WITH_MPU,
+};