OMAP2/3: PM: push core PM code from linux-omap

This patch is to sync the core linux-omap PM code with mainline.  This
code has evolved and been used for a while the linux-omap tree, but
the attempt here is to finally get this into mainline.

Following this will be a series of patches from the 'PM branch' of the
linux-omap tree to add full PM hardware support from the linux-omap
tree.

Much of this PM core code was written by Jouni Hogander with
significant contributions from Paul Walmsley as well as many others
from Nokia, Texas Instruments and linux-omap community.

Signed-off-by: Jouni Hogander <jouni.hogander@nokia.com>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

1 files changed, 345 insertions, 0 deletions

diff --git a/arch/arm/mach-omap1/pm.h b/arch/arm/mach-omap1/pm.h
new file mode 100644
index 000000000000..ce6ee7927537
--- /dev/null
+++ b/arch/arm/mach-omap1/pm.h
@@ -0,0 +1,345 @@
+/*
+ * arch/arm/plat-omap/include/mach/pm.h
+ *
+ * Header file for OMAP Power Management Routines
+ *
+ * Author: MontaVista Software, Inc.
+ *         support@mvista.com
+ *
+ * Copyright 2002 MontaVista Software Inc.
+ *
+ * Cleanup 2004 for Linux 2.6 by Dirk Behme <dirk.behme@de.bosch.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __ASM_ARCH_OMAP_PM_H
+#define __ASM_ARCH_OMAP_PM_H
+
+/*
+ * ----------------------------------------------------------------------------
+ * Register and offset definitions to be used in PM assembler code
+ * ----------------------------------------------------------------------------
+ */
+#define CLKGEN_REG_ASM_BASE             IO_ADDRESS(0xfffece00)
+#define ARM_IDLECT1_ASM_OFFSET          0x04
+#define ARM_IDLECT2_ASM_OFFSET          0x08
+
+#define TCMIF_ASM_BASE                  IO_ADDRESS(0xfffecc00)
+#define EMIFS_CONFIG_ASM_OFFSET         0x0c
+#define EMIFF_SDRAM_CONFIG_ASM_OFFSET   0x20
+
+/*
+ * ----------------------------------------------------------------------------
+ * Power management bitmasks
+ * ----------------------------------------------------------------------------
+ */
+#define IDLE_WAIT_CYCLES                0x00000fff
+#define PERIPHERAL_ENABLE               0x2
+
+#define SELF_REFRESH_MODE               0x0c000001
+#define IDLE_EMIFS_REQUEST              0xc
+#define MODEM_32K_EN                    0x1
+#define PER_EN                          0x1
+
+#define CPU_SUSPEND_SIZE                200
+#define ULPD_LOW_PWR_EN                 0x0001
+#define ULPD_DEEP_SLEEP_TRANSITION_EN   0x0010
+#define ULPD_SETUP_ANALOG_CELL_3_VAL    0
+#define ULPD_POWER_CTRL_REG_VAL         0x0219
+
+#define DSP_IDLE_DELAY                  10
+#define DSP_IDLE                        0x0040
+#define DSP_RST                         0x0004
+#define DSP_ENABLE                      0x0002
+#define SUFFICIENT_DSP_RESET_TIME       1000
+#define DEFAULT_MPUI_CONFIG             0x05cf
+#define ENABLE_XORCLK                   0x2
+#define DSP_CLOCK_ENABLE                0x2000
+#define DSP_IDLE_MODE                   0x2
+#define TC_IDLE_REQUEST                 (0x0000000c)
+
+#define IRQ_LEVEL2                      (1<<0)
+#define IRQ_KEYBOARD                    (1<<1)
+#define IRQ_UART2                       (1<<15)
+
+#define PDE_BIT                         0x08
+#define PWD_EN_BIT                      0x04
+#define EN_PERCK_BIT                    0x04
+
+#define OMAP1510_DEEP_SLEEP_REQUEST     0x0ec7
+#define OMAP1510_BIG_SLEEP_REQUEST      0x0cc5
+#define OMAP1510_IDLE_LOOP_REQUEST      0x0c00
+#define OMAP1510_IDLE_CLOCK_DOMAINS     0x2
+
+/* Both big sleep and deep sleep use same values. Difference is in ULPD. */
+#define OMAP1610_IDLECT1_SLEEP_VAL      0x13c7
+#define OMAP1610_IDLECT2_SLEEP_VAL      0x09c7
+#define OMAP1610_IDLECT3_VAL            0x3f
+#define OMAP1610_IDLECT3_SLEEP_ORMASK   0x2c
+#define OMAP1610_IDLECT3                0xfffece24
+#define OMAP1610_IDLE_LOOP_REQUEST      0x0400
+
+#define OMAP730_IDLECT1_SLEEP_VAL       0x16c7
+#define OMAP730_IDLECT2_SLEEP_VAL       0x09c7
+#define OMAP730_IDLECT3_VAL             0x3f
+#define OMAP730_IDLECT3         0xfffece24
+#define OMAP730_IDLE_LOOP_REQUEST       0x0C00
+
+#if     !defined(CONFIG_ARCH_OMAP730) && \
+        !defined(CONFIG_ARCH_OMAP15XX) && \
+        !defined(CONFIG_ARCH_OMAP16XX) && \
+        !defined(CONFIG_ARCH_OMAP24XX)
+#warning "Power management for this processor not implemented yet"
+#endif
+
+#ifndef __ASSEMBLER__
+
+#include <linux/clk.h>
+
+extern void prevent_idle_sleep(void);
+extern void allow_idle_sleep(void);
+
+extern void omap_pm_idle(void);
+extern void omap_pm_suspend(void);
+extern void omap730_cpu_suspend(unsigned short, unsigned short);
+extern void omap1510_cpu_suspend(unsigned short, unsigned short);
+extern void omap1610_cpu_suspend(unsigned short, unsigned short);
+extern void omap24xx_cpu_suspend(u32 dll_ctrl, void __iomem *sdrc_dlla_ctrl,
+                                        void __iomem *sdrc_power);
+extern void omap730_idle_loop_suspend(void);
+extern void omap1510_idle_loop_suspend(void);
+extern void omap1610_idle_loop_suspend(void);
+extern void omap24xx_idle_loop_suspend(void);
+
+extern unsigned int omap730_cpu_suspend_sz;
+extern unsigned int omap1510_cpu_suspend_sz;
+extern unsigned int omap1610_cpu_suspend_sz;
+extern unsigned int omap24xx_cpu_suspend_sz;
+extern unsigned int omap730_idle_loop_suspend_sz;
+extern unsigned int omap1510_idle_loop_suspend_sz;
+extern unsigned int omap1610_idle_loop_suspend_sz;
+extern unsigned int omap24xx_idle_loop_suspend_sz;
+
+#ifdef CONFIG_OMAP_SERIAL_WAKE
+extern void omap_serial_wake_trigger(int enable);
+#else
+#define omap_serial_wakeup_init()       {}
+#define omap_serial_wake_trigger(x)     {}
+#endif  /* CONFIG_OMAP_SERIAL_WAKE */
+
+#define ARM_SAVE(x) arm_sleep_save[ARM_SLEEP_SAVE_##x] = omap_readl(x)
+#define ARM_RESTORE(x) omap_writel((arm_sleep_save[ARM_SLEEP_SAVE_##x]), (x))
+#define ARM_SHOW(x) arm_sleep_save[ARM_SLEEP_SAVE_##x]
+
+#define DSP_SAVE(x) dsp_sleep_save[DSP_SLEEP_SAVE_##x] = __raw_readw(x)
+#define DSP_RESTORE(x) __raw_writew((dsp_sleep_save[DSP_SLEEP_SAVE_##x]), (x))
+#define DSP_SHOW(x) dsp_sleep_save[DSP_SLEEP_SAVE_##x]
+
+#define ULPD_SAVE(x) ulpd_sleep_save[ULPD_SLEEP_SAVE_##x] = omap_readw(x)
+#define ULPD_RESTORE(x) omap_writew((ulpd_sleep_save[ULPD_SLEEP_SAVE_##x]), (x))
+#define ULPD_SHOW(x) ulpd_sleep_save[ULPD_SLEEP_SAVE_##x]
+
+#define MPUI730_SAVE(x) mpui730_sleep_save[MPUI730_SLEEP_SAVE_##x] = omap_readl(x)
+#define MPUI730_RESTORE(x) omap_writel((mpui730_sleep_save[MPUI730_SLEEP_SAVE_##x]), (x))
+#define MPUI730_SHOW(x) mpui730_sleep_save[MPUI730_SLEEP_SAVE_##x]
+
+#define MPUI1510_SAVE(x) mpui1510_sleep_save[MPUI1510_SLEEP_SAVE_##x] = omap_readl(x)
+#define MPUI1510_RESTORE(x) omap_writel((mpui1510_sleep_save[MPUI1510_SLEEP_SAVE_##x]), (x))
+#define MPUI1510_SHOW(x) mpui1510_sleep_save[MPUI1510_SLEEP_SAVE_##x]
+
+#define MPUI1610_SAVE(x) mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_##x] = omap_readl(x)
+#define MPUI1610_RESTORE(x) omap_writel((mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_##x]), (x))
+#define MPUI1610_SHOW(x) mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_##x]
+
+#define OMAP24XX_SAVE(x) omap24xx_sleep_save[OMAP24XX_SLEEP_SAVE_##x] = x
+#define OMAP24XX_RESTORE(x) x = omap24xx_sleep_save[OMAP24XX_SLEEP_SAVE_##x]
+#define OMAP24XX_SHOW(x) omap24xx_sleep_save[OMAP24XX_SLEEP_SAVE_##x]
+
+/*
+ * List of global OMAP registers to preserve.
+ * More ones like CP and general purpose register values are preserved
+ * with the stack pointer in sleep.S.
+ */
+
+enum arm_save_state {
+        ARM_SLEEP_SAVE_START = 0,
+        /*
+         * MPU control registers 32 bits
+         */
+        ARM_SLEEP_SAVE_ARM_CKCTL,
+        ARM_SLEEP_SAVE_ARM_IDLECT1,
+        ARM_SLEEP_SAVE_ARM_IDLECT2,
+        ARM_SLEEP_SAVE_ARM_IDLECT3,
+        ARM_SLEEP_SAVE_ARM_EWUPCT,
+        ARM_SLEEP_SAVE_ARM_RSTCT1,
+        ARM_SLEEP_SAVE_ARM_RSTCT2,
+        ARM_SLEEP_SAVE_ARM_SYSST,
+        ARM_SLEEP_SAVE_SIZE
+};
+
+enum dsp_save_state {
+        DSP_SLEEP_SAVE_START = 0,
+        /*
+         * DSP registers 16 bits
+         */
+        DSP_SLEEP_SAVE_DSP_IDLECT2,
+        DSP_SLEEP_SAVE_SIZE
+};
+
+enum ulpd_save_state {
+        ULPD_SLEEP_SAVE_START = 0,
+        /*
+         * ULPD registers 16 bits
+         */
+        ULPD_SLEEP_SAVE_ULPD_IT_STATUS,
+        ULPD_SLEEP_SAVE_ULPD_CLOCK_CTRL,
+        ULPD_SLEEP_SAVE_ULPD_SOFT_REQ,
+        ULPD_SLEEP_SAVE_ULPD_STATUS_REQ,
+        ULPD_SLEEP_SAVE_ULPD_DPLL_CTRL,
+        ULPD_SLEEP_SAVE_ULPD_POWER_CTRL,
+        ULPD_SLEEP_SAVE_SIZE
+};
+
+enum mpui1510_save_state {
+        MPUI1510_SLEEP_SAVE_START = 0,
+        /*
+         * MPUI registers 32 bits
+         */
+        MPUI1510_SLEEP_SAVE_MPUI_CTRL,
+        MPUI1510_SLEEP_SAVE_MPUI_DSP_BOOT_CONFIG,
+        MPUI1510_SLEEP_SAVE_MPUI_DSP_API_CONFIG,
+        MPUI1510_SLEEP_SAVE_MPUI_DSP_STATUS,
+        MPUI1510_SLEEP_SAVE_EMIFF_SDRAM_CONFIG,
+        MPUI1510_SLEEP_SAVE_EMIFS_CONFIG,
+        MPUI1510_SLEEP_SAVE_OMAP_IH1_MIR,
+        MPUI1510_SLEEP_SAVE_OMAP_IH2_MIR,
+#if defined(CONFIG_ARCH_OMAP15XX)
+        MPUI1510_SLEEP_SAVE_SIZE
+#else
+        MPUI1510_SLEEP_SAVE_SIZE = 0
+#endif
+};
+
+enum mpui730_save_state {
+        MPUI730_SLEEP_SAVE_START = 0,
+        /*
+         * MPUI registers 32 bits
+         */
+        MPUI730_SLEEP_SAVE_MPUI_CTRL,
+        MPUI730_SLEEP_SAVE_MPUI_DSP_BOOT_CONFIG,
+        MPUI730_SLEEP_SAVE_MPUI_DSP_API_CONFIG,
+        MPUI730_SLEEP_SAVE_MPUI_DSP_STATUS,
+        MPUI730_SLEEP_SAVE_EMIFF_SDRAM_CONFIG,
+        MPUI730_SLEEP_SAVE_EMIFS_CONFIG,
+        MPUI730_SLEEP_SAVE_OMAP_IH1_MIR,
+        MPUI730_SLEEP_SAVE_OMAP_IH2_0_MIR,
+        MPUI730_SLEEP_SAVE_OMAP_IH2_1_MIR,
+#if defined(CONFIG_ARCH_OMAP730)
+        MPUI730_SLEEP_SAVE_SIZE
+#else
+        MPUI730_SLEEP_SAVE_SIZE = 0
+#endif
+};
+
+enum mpui1610_save_state {
+        MPUI1610_SLEEP_SAVE_START = 0,
+        /*
+         * MPUI registers 32 bits
+         */
+        MPUI1610_SLEEP_SAVE_MPUI_CTRL,
+        MPUI1610_SLEEP_SAVE_MPUI_DSP_BOOT_CONFIG,
+        MPUI1610_SLEEP_SAVE_MPUI_DSP_API_CONFIG,
+        MPUI1610_SLEEP_SAVE_MPUI_DSP_STATUS,
+        MPUI1610_SLEEP_SAVE_EMIFF_SDRAM_CONFIG,
+        MPUI1610_SLEEP_SAVE_EMIFS_CONFIG,
+        MPUI1610_SLEEP_SAVE_OMAP_IH1_MIR,
+        MPUI1610_SLEEP_SAVE_OMAP_IH2_0_MIR,
+        MPUI1610_SLEEP_SAVE_OMAP_IH2_1_MIR,
+        MPUI1610_SLEEP_SAVE_OMAP_IH2_2_MIR,
+        MPUI1610_SLEEP_SAVE_OMAP_IH2_3_MIR,
+#if defined(CONFIG_ARCH_OMAP16XX)
+        MPUI1610_SLEEP_SAVE_SIZE
+#else
+        MPUI1610_SLEEP_SAVE_SIZE = 0
+#endif
+};
+
+enum omap24xx_save_state {
+        OMAP24XX_SLEEP_SAVE_START = 0,
+        OMAP24XX_SLEEP_SAVE_INTC_MIR0,
+        OMAP24XX_SLEEP_SAVE_INTC_MIR1,
+        OMAP24XX_SLEEP_SAVE_INTC_MIR2,
+
+        OMAP24XX_SLEEP_SAVE_CM_CLKSTCTRL_MPU,
+        OMAP24XX_SLEEP_SAVE_CM_CLKSTCTRL_CORE,
+        OMAP24XX_SLEEP_SAVE_CM_CLKSTCTRL_GFX,
+        OMAP24XX_SLEEP_SAVE_CM_CLKSTCTRL_DSP,
+        OMAP24XX_SLEEP_SAVE_CM_CLKSTCTRL_MDM,
+
+        OMAP24XX_SLEEP_SAVE_PM_PWSTCTRL_MPU,
+        OMAP24XX_SLEEP_SAVE_PM_PWSTCTRL_CORE,
+        OMAP24XX_SLEEP_SAVE_PM_PWSTCTRL_GFX,
+        OMAP24XX_SLEEP_SAVE_PM_PWSTCTRL_DSP,
+        OMAP24XX_SLEEP_SAVE_PM_PWSTCTRL_MDM,
+
+        OMAP24XX_SLEEP_SAVE_CM_IDLEST1_CORE,
+        OMAP24XX_SLEEP_SAVE_CM_IDLEST2_CORE,
+        OMAP24XX_SLEEP_SAVE_CM_IDLEST3_CORE,
+        OMAP24XX_SLEEP_SAVE_CM_IDLEST4_CORE,
+        OMAP24XX_SLEEP_SAVE_CM_IDLEST_GFX,
+        OMAP24XX_SLEEP_SAVE_CM_IDLEST_WKUP,
+        OMAP24XX_SLEEP_SAVE_CM_IDLEST_CKGEN,
+        OMAP24XX_SLEEP_SAVE_CM_IDLEST_DSP,
+        OMAP24XX_SLEEP_SAVE_CM_IDLEST_MDM,
+
+        OMAP24XX_SLEEP_SAVE_CM_AUTOIDLE1_CORE,
+        OMAP24XX_SLEEP_SAVE_CM_AUTOIDLE2_CORE,
+        OMAP24XX_SLEEP_SAVE_CM_AUTOIDLE3_CORE,
+        OMAP24XX_SLEEP_SAVE_CM_AUTOIDLE4_CORE,
+        OMAP24XX_SLEEP_SAVE_CM_AUTOIDLE_WKUP,
+        OMAP24XX_SLEEP_SAVE_CM_AUTOIDLE_PLL,
+        OMAP24XX_SLEEP_SAVE_CM_AUTOIDLE_DSP,
+        OMAP24XX_SLEEP_SAVE_CM_AUTOIDLE_MDM,
+
+        OMAP24XX_SLEEP_SAVE_CM_FCLKEN1_CORE,
+        OMAP24XX_SLEEP_SAVE_CM_FCLKEN2_CORE,
+        OMAP24XX_SLEEP_SAVE_CM_ICLKEN1_CORE,
+        OMAP24XX_SLEEP_SAVE_CM_ICLKEN2_CORE,
+        OMAP24XX_SLEEP_SAVE_CM_ICLKEN3_CORE,
+        OMAP24XX_SLEEP_SAVE_CM_ICLKEN4_CORE,
+        OMAP24XX_SLEEP_SAVE_GPIO1_IRQENABLE1,
+        OMAP24XX_SLEEP_SAVE_GPIO2_IRQENABLE1,
+        OMAP24XX_SLEEP_SAVE_GPIO3_IRQENABLE1,
+        OMAP24XX_SLEEP_SAVE_GPIO4_IRQENABLE1,
+        OMAP24XX_SLEEP_SAVE_GPIO3_OE,
+        OMAP24XX_SLEEP_SAVE_GPIO4_OE,
+        OMAP24XX_SLEEP_SAVE_GPIO3_RISINGDETECT,
+        OMAP24XX_SLEEP_SAVE_GPIO3_FALLINGDETECT,
+        OMAP24XX_SLEEP_SAVE_CONTROL_PADCONF_SPI1_NCS2,
+        OMAP24XX_SLEEP_SAVE_CONTROL_PADCONF_MCBSP1_DX,
+        OMAP24XX_SLEEP_SAVE_CONTROL_PADCONF_SSI1_FLAG_TX,
+        OMAP24XX_SLEEP_SAVE_CONTROL_PADCONF_SYS_NIRQW0,
+        OMAP24XX_SLEEP_SAVE_SIZE
+};
+
+#endif /* ASSEMBLER */
+#endif /* __ASM_ARCH_OMAP_PM_H */