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Add am335x and am437x PM code for v4.17

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This series of changes from Dave Gerlach adds the PM related
 code to allow low-power suspend states. The code consists of
 the SoC specific assembly code and a related PM driver.
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Merge tag 'omap-for-v4.17/am-pm-signed' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc

Pull "Add am335x and am437x PM code for v4.17" from Tony Lindgren:

This series of changes from Dave Gerlach adds the PM related
code to allow low-power suspend states. The code consists of
the SoC specific assembly code and a related PM driver.

* tag 'omap-for-v4.17/am-pm-signed' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  soc: ti: Add pm33xx driver for basic suspend support
  ARM: OMAP2+: pm33xx-core: Add platform code needed for PM
  ARM: OMAP2+: Introduce low-level suspend code for AM43XX
  ARM: OMAP2+: Introduce low-level suspend code for AM33XX
This commit is contained in:
Arnd Bergmann 2018-03-07 16:21:59 +01:00
commit 18b4788bad
14 changed files with 1267 additions and 0 deletions
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42
include/linux/platform_data/pm33xx.h Normal file
View file

@ -0,0 +1,42 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* TI pm33xx platform data
*
* Copyright (C) 2016-2018 Texas Instruments, Inc.
* Dave Gerlach <d-gerlach@ti.com>
*/
#ifndef _LINUX_PLATFORM_DATA_PM33XX_H
#define _LINUX_PLATFORM_DATA_PM33XX_H
#include <linux/kbuild.h>
#include <linux/types.h>
#ifndef __ASSEMBLER__
struct am33xx_pm_sram_addr {
void (*do_wfi)(void);
unsigned long *do_wfi_sz;
unsigned long *resume_offset;
unsigned long *emif_sram_table;
unsigned long *ro_sram_data;
};
struct am33xx_pm_platform_data {
int (*init)(void);
int (*soc_suspend)(unsigned int state, int (*fn)(unsigned long));
struct am33xx_pm_sram_addr *(*get_sram_addrs)(void);
};
struct am33xx_pm_sram_data {
u32 wfi_flags;
u32 l2_aux_ctrl_val;
u32 l2_prefetch_ctrl_val;
} __packed __aligned(8);
struct am33xx_pm_ro_sram_data {
u32 amx3_pm_sram_data_virt;
u32 amx3_pm_sram_data_phys;
} __packed __aligned(8);
#endif /* __ASSEMBLER__ */
#endif /* _LINUX_PLATFORM_DATA_PM33XX_H */