1 files changed, 82 insertions, 0 deletions

diff --git a/include/soc/tegra/flowctrl.h b/include/soc/tegra/flowctrl.h
new file mode 100644
index 000000000000..8f86aea4024b
--- /dev/null
+++ b/include/soc/tegra/flowctrl.h
@@ -0,0 +1,82 @@
+/*
+ * Functions and macros to control the flowcontroller
+ *
+ * Copyright (c) 2010-2012, NVIDIA Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __SOC_TEGRA_FLOWCTRL_H__
+#define __SOC_TEGRA_FLOWCTRL_H__
+
+#define FLOW_CTRL_HALT_CPU0_EVENTS      0x0
+#define FLOW_CTRL_WAITEVENT             (2 << 29)
+#define FLOW_CTRL_WAIT_FOR_INTERRUPT    (4 << 29)
+#define FLOW_CTRL_JTAG_RESUME           (1 << 28)
+#define FLOW_CTRL_SCLK_RESUME           (1 << 27)
+#define FLOW_CTRL_HALT_CPU_IRQ          (1 << 10)
+#define FLOW_CTRL_HALT_CPU_FIQ          (1 << 8)
+#define FLOW_CTRL_HALT_LIC_IRQ          (1 << 11)
+#define FLOW_CTRL_HALT_LIC_FIQ          (1 << 10)
+#define FLOW_CTRL_HALT_GIC_IRQ          (1 << 9)
+#define FLOW_CTRL_HALT_GIC_FIQ          (1 << 8)
+#define FLOW_CTRL_CPU0_CSR              0x8
+#define FLOW_CTRL_CSR_INTR_FLAG         (1 << 15)
+#define FLOW_CTRL_CSR_EVENT_FLAG        (1 << 14)
+#define FLOW_CTRL_CSR_ENABLE_EXT_CRAIL  (1 << 13)
+#define FLOW_CTRL_CSR_ENABLE_EXT_NCPU   (1 << 12)
+#define FLOW_CTRL_CSR_ENABLE_EXT_MASK ( \
+                FLOW_CTRL_CSR_ENABLE_EXT_NCPU | \
+                FLOW_CTRL_CSR_ENABLE_EXT_CRAIL)
+#define FLOW_CTRL_CSR_ENABLE            (1 << 0)
+#define FLOW_CTRL_HALT_CPU1_EVENTS      0x14
+#define FLOW_CTRL_CPU1_CSR              0x18
+
+#define TEGRA20_FLOW_CTRL_CSR_WFE_CPU0          (1 << 4)
+#define TEGRA20_FLOW_CTRL_CSR_WFE_BITMAP        (3 << 4)
+#define TEGRA20_FLOW_CTRL_CSR_WFI_BITMAP        0
+
+#define TEGRA30_FLOW_CTRL_CSR_WFI_CPU0          (1 << 8)
+#define TEGRA30_FLOW_CTRL_CSR_WFE_BITMAP        (0xF << 4)
+#define TEGRA30_FLOW_CTRL_CSR_WFI_BITMAP        (0xF << 8)
+
+#ifndef __ASSEMBLY__
+#ifdef CONFIG_SOC_TEGRA_FLOWCTRL
+u32 flowctrl_read_cpu_csr(unsigned int cpuid);
+void flowctrl_write_cpu_csr(unsigned int cpuid, u32 value);
+void flowctrl_write_cpu_halt(unsigned int cpuid, u32 value);
+
+void flowctrl_cpu_suspend_enter(unsigned int cpuid);
+void flowctrl_cpu_suspend_exit(unsigned int cpuid);
+#else
+static inline u32 flowctrl_read_cpu_csr(unsigned int cpuid)
+{
+        return 0;
+}
+
+static inline void flowctrl_write_cpu_csr(unsigned int cpuid, u32 value)
+{
+}
+
+static inline void flowctrl_write_cpu_halt(unsigned int cpuid, u32 value) {}
+
+static inline void flowctrl_cpu_suspend_enter(unsigned int cpuid)
+{
+}
+
+static inline void flowctrl_cpu_suspend_exit(unsigned int cpuid)
+{
+}
+#endif /* CONFIG_SOC_TEGRA_FLOWCTRL */
+#endif /* __ASSEMBLY */
+#endif /* __SOC_TEGRA_FLOWCTRL_H__ */