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linux-hardened/arch/arm/mach-omap1/pm.h
Jean Pihet b6338bdc83 ARM: 6649/1: omap: use fncpy to copy the PM code functions to SRAM 
The new fncpy API is better suited* for copying some
code to SRAM at runtime. This patch changes the ad-hoc
code to the more generic fncpy API.

*: 1. fncpy ensures that the thumb mode bit is propagated,
   2. fncpy provides the security of type safety between the
     original function and the sram function pointer.

Tested OK on OMAP3 in low power modes (RET/OFF)
using omap2plus_defconfig with !CONFIG_THUMB2_KERNEL.
Compile tested on OMAP1/2 using omap1_defconfig.

Boot tested on OMAP1 & OMAP2
Tested OK with suspend/resume on OMAP2420/n810

Boots fine on osk5912 and n800

Signed-off-by: Jean Pihet <j-pihet@ti.com>
Acked-by: Kevin Hilman <khilman@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Dave Martin <dave.martin@linaro.org>
Tested-by: Kevin Hilman <khilman@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-04 14:26:08 +00:00

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/*
* arch/arm/mach-omap1/pm.h
*
* Header file for OMAP1 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 __ARCH_ARM_MACH_OMAP1_PM_H
#define __ARCH_ARM_MACH_OMAP1_PM_H
/*
* ----------------------------------------------------------------------------
* Register and offset definitions to be used in PM assembler code
* ----------------------------------------------------------------------------
*/
#define CLKGEN_REG_ASM_BASE OMAP1_IO_ADDRESS(0xfffece00)
#define ARM_IDLECT1_ASM_OFFSET 0x04
#define ARM_IDLECT2_ASM_OFFSET 0x08
#define TCMIF_ASM_BASE OMAP1_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 OMAP7XX_IDLECT1_SLEEP_VAL 0x16c7
#define OMAP7XX_IDLECT2_SLEEP_VAL 0x09c7
#define OMAP7XX_IDLECT3_VAL 0x3f
#define OMAP7XX_IDLECT3 0xfffece24
#define OMAP7XX_IDLE_LOOP_REQUEST 0x0C00
#if !defined(CONFIG_ARCH_OMAP730) && \
!defined(CONFIG_ARCH_OMAP850) && \
!defined(CONFIG_ARCH_OMAP15XX) && \
!defined(CONFIG_ARCH_OMAP16XX)
#warning "Power management for this processor not implemented yet"
#endif
#ifndef __ASSEMBLER__
#include <linux/clk.h>
extern struct kset power_subsys;
extern void prevent_idle_sleep(void);
extern void allow_idle_sleep(void);
extern void omap1_pm_idle(void);
extern void omap1_pm_suspend(void);
extern void omap7xx_cpu_suspend(unsigned long, unsigned long);
extern void omap1510_cpu_suspend(unsigned long, unsigned long);
extern void omap1610_cpu_suspend(unsigned long, unsigned long);
extern void omap7xx_idle_loop_suspend(void);
extern void omap1510_idle_loop_suspend(void);
extern void omap1610_idle_loop_suspend(void);
extern unsigned int omap7xx_cpu_suspend_sz;
extern unsigned int omap1510_cpu_suspend_sz;
extern unsigned int omap1610_cpu_suspend_sz;
extern unsigned int omap7xx_idle_loop_suspend_sz;
extern unsigned int omap1510_idle_loop_suspend_sz;
extern unsigned int omap1610_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 MPUI7XX_SAVE(x) mpui7xx_sleep_save[MPUI7XX_SLEEP_SAVE_##x] = omap_readl(x)
#define MPUI7XX_RESTORE(x) omap_writel((mpui7xx_sleep_save[MPUI7XX_SLEEP_SAVE_##x]), (x))
#define MPUI7XX_SHOW(x) mpui7xx_sleep_save[MPUI7XX_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]
/*
* 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 mpui7xx_save_state {
MPUI7XX_SLEEP_SAVE_START = 0,
/*
* MPUI registers 32 bits
*/
MPUI7XX_SLEEP_SAVE_MPUI_CTRL,
MPUI7XX_SLEEP_SAVE_MPUI_DSP_BOOT_CONFIG,
MPUI7XX_SLEEP_SAVE_MPUI_DSP_API_CONFIG,
MPUI7XX_SLEEP_SAVE_MPUI_DSP_STATUS,
MPUI7XX_SLEEP_SAVE_EMIFF_SDRAM_CONFIG,
MPUI7XX_SLEEP_SAVE_EMIFS_CONFIG,
MPUI7XX_SLEEP_SAVE_OMAP_IH1_MIR,
MPUI7XX_SLEEP_SAVE_OMAP_IH2_0_MIR,
MPUI7XX_SLEEP_SAVE_OMAP_IH2_1_MIR,
#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
MPUI7XX_SLEEP_SAVE_SIZE
#else
MPUI7XX_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
};
#endif /* ASSEMBLER */
#endif /* __ASM_ARCH_OMAP_PM_H */
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