OMAP: clockdomain code/data: remove omap_chip bitmask from struct clockdomain
At Tony's request, remove the omap_chip bitmasks from the clockdomain
and clockdomain dependency definitions. Instead, initialize
clockdomains based on one or more lists that are applicable to a
particular SoC family, variant, and silicon revision.
Tony Lindgren <tony@atomide.com> found a bug in a previous version of this
patch - thanks Tony.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/clockdomains2430_data.c b/arch/arm/mach-omap2/clockdomains2430_data.c
new file mode 100644
index 0000000..3645ed0
--- /dev/null
+++ b/arch/arm/mach-omap2/clockdomains2430_data.c
@@ -0,0 +1,181 @@
+/*
+ * OMAP2xxx clockdomains
+ *
+ * Copyright (C) 2008-2009 Texas Instruments, Inc.
+ * Copyright (C) 2008-2010 Nokia Corporation
+ *
+ * Paul Walmsley, Jouni Högander
+ *
+ * This file contains clockdomains and clockdomain wakeup dependencies
+ * for OMAP2xxx chips. Some notes:
+ *
+ * A useful validation rule for struct clockdomain: Any clockdomain
+ * referenced by a wkdep_srcs must have a dep_bit assigned. So
+ * wkdep_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 "prm-regbits-24xx.h"
+
+/*
+ * Clockdomain dependencies for wkdeps
+ *
+ * XXX Hardware dependencies (e.g., dependencies that cannot be
+ * changed in software) are not included here yet, but should be.
+ */
+
+/* Wakeup dependency source arrays */
+
+/* 2430-specific possible wakeup dependencies */
+
+/* 2430 PM_WKDEP_CORE: DSP, GFX, MPU, WKUP, MDM */
+static struct clkdm_dep core_2430_wkdeps[] = {
+ { .clkdm_name = "dsp_clkdm" },
+ { .clkdm_name = "gfx_clkdm" },
+ { .clkdm_name = "mpu_clkdm" },
+ { .clkdm_name = "wkup_clkdm" },
+ { .clkdm_name = "mdm_clkdm" },
+ { NULL },
+};
+
+/* 2430 PM_WKDEP_MPU: CORE, DSP, WKUP, MDM */
+static struct clkdm_dep mpu_2430_wkdeps[] = {
+ { .clkdm_name = "core_l3_clkdm" },
+ { .clkdm_name = "core_l4_clkdm" },
+ { .clkdm_name = "dsp_clkdm" },
+ { .clkdm_name = "wkup_clkdm" },
+ { .clkdm_name = "mdm_clkdm" },
+ { NULL },
+};
+
+/* 2430 PM_WKDEP_MDM: CORE, MPU, WKUP */
+static struct clkdm_dep mdm_2430_wkdeps[] = {
+ { .clkdm_name = "core_l3_clkdm" },
+ { .clkdm_name = "core_l4_clkdm" },
+ { .clkdm_name = "mpu_clkdm" },
+ { .clkdm_name = "wkup_clkdm" },
+ { NULL },
+};
+
+/*
+ * 2430-only clockdomains
+ */
+
+static struct clockdomain mpu_2430_clkdm = {
+ .name = "mpu_clkdm",
+ .pwrdm = { .name = "mpu_pwrdm" },
+ .flags = CLKDM_CAN_HWSUP_SWSUP,
+ .wkdep_srcs = mpu_2430_wkdeps,
+ .clktrctrl_mask = OMAP24XX_AUTOSTATE_MPU_MASK,
+};
+
+/* Another case of bit name collisions between several registers: EN_MDM */
+static struct clockdomain mdm_clkdm = {
+ .name = "mdm_clkdm",
+ .pwrdm = { .name = "mdm_pwrdm" },
+ .flags = CLKDM_CAN_HWSUP_SWSUP,
+ .dep_bit = OMAP2430_PM_WKDEP_MPU_EN_MDM_SHIFT,
+ .wkdep_srcs = mdm_2430_wkdeps,
+ .clktrctrl_mask = OMAP2430_AUTOSTATE_MDM_MASK,
+};
+
+static struct clockdomain dsp_2430_clkdm = {
+ .name = "dsp_clkdm",
+ .pwrdm = { .name = "dsp_pwrdm" },
+ .flags = CLKDM_CAN_HWSUP_SWSUP,
+ .dep_bit = OMAP24XX_PM_WKDEP_MPU_EN_DSP_SHIFT,
+ .wkdep_srcs = dsp_24xx_wkdeps,
+ .clktrctrl_mask = OMAP24XX_AUTOSTATE_DSP_MASK,
+};
+
+static struct clockdomain gfx_2430_clkdm = {
+ .name = "gfx_clkdm",
+ .pwrdm = { .name = "gfx_pwrdm" },
+ .flags = CLKDM_CAN_HWSUP_SWSUP,
+ .wkdep_srcs = gfx_24xx_wkdeps,
+ .clktrctrl_mask = OMAP24XX_AUTOSTATE_GFX_MASK,
+};
+
+/*
+ * XXX add usecounting for clkdm dependencies, otherwise the presence
+ * of a single dep bit for core_l3_24xx_clkdm and core_l4_24xx_clkdm
+ * could cause trouble
+ */
+static struct clockdomain core_l3_2430_clkdm = {
+ .name = "core_l3_clkdm",
+ .pwrdm = { .name = "core_pwrdm" },
+ .flags = CLKDM_CAN_HWSUP,
+ .dep_bit = OMAP24XX_EN_CORE_SHIFT,
+ .wkdep_srcs = core_2430_wkdeps,
+ .clktrctrl_mask = OMAP24XX_AUTOSTATE_L3_MASK,
+};
+
+/*
+ * XXX add usecounting for clkdm dependencies, otherwise the presence
+ * of a single dep bit for core_l3_24xx_clkdm and core_l4_24xx_clkdm
+ * could cause trouble
+ */
+static struct clockdomain core_l4_2430_clkdm = {
+ .name = "core_l4_clkdm",
+ .pwrdm = { .name = "core_pwrdm" },
+ .flags = CLKDM_CAN_HWSUP,
+ .dep_bit = OMAP24XX_EN_CORE_SHIFT,
+ .wkdep_srcs = core_2430_wkdeps,
+ .clktrctrl_mask = OMAP24XX_AUTOSTATE_L4_MASK,
+};
+
+static struct clockdomain dss_2430_clkdm = {
+ .name = "dss_clkdm",
+ .pwrdm = { .name = "core_pwrdm" },
+ .flags = CLKDM_CAN_HWSUP,
+ .clktrctrl_mask = OMAP24XX_AUTOSTATE_DSS_MASK,
+};
+
+static struct clockdomain *clockdomains_omap243x[] __initdata = {
+ &wkup_common_clkdm,
+ &cm_common_clkdm,
+ &prm_common_clkdm,
+ &mpu_2430_clkdm,
+ &mdm_clkdm,
+ &dsp_2430_clkdm,
+ &gfx_2430_clkdm,
+ &core_l3_2430_clkdm,
+ &core_l4_2430_clkdm,
+ &dss_2430_clkdm,
+ NULL,
+};
+
+void __init omap243x_clockdomains_init(void)
+{
+ if (!cpu_is_omap243x())
+ return;
+
+ clkdm_register_platform_funcs(&omap2_clkdm_operations);
+ clkdm_register_clkdms(clockdomains_omap243x);
+ clkdm_complete_init();
+}
+