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Most of the PM code needed for am335x and am437x can be moved into a module under drivers but some core code must remain in mach-omap2 at the moment. This includes some internal clockdomain APIs and low-level ARM APIs which are also not exported for use by modules. Implement a few functions that handle these low-level platform operations can be passed to the pm33xx module through the use of platform data. In addition to this, to be able to share data structures between C and the sleep33xx and sleep43xx assembly code, we can automatically generate all of the C struct member offsets and sizes as macros by processing pm-asm-offsets.c into assembly code and then extracting the relevant data as is done for the generated platform asm-offsets.h files. Finally, add amx3_common_pm_init to create a dummy platform_device for pm33xx so that our soon to be introduced pm33xx module can probe on am335x and am437x platforms to enable basic suspend to mem and standby support. Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Acked-by: Santosh Shilimkar <ssantosh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
42 lines
976 B
C
42 lines
976 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* TI pm33xx platform data
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*
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* Copyright (C) 2016-2018 Texas Instruments, Inc.
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* Dave Gerlach <d-gerlach@ti.com>
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*/
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#ifndef _LINUX_PLATFORM_DATA_PM33XX_H
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#define _LINUX_PLATFORM_DATA_PM33XX_H
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#include <linux/kbuild.h>
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#include <linux/types.h>
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#ifndef __ASSEMBLER__
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struct am33xx_pm_sram_addr {
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void (*do_wfi)(void);
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unsigned long *do_wfi_sz;
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unsigned long *resume_offset;
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unsigned long *emif_sram_table;
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unsigned long *ro_sram_data;
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};
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struct am33xx_pm_platform_data {
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int (*init)(void);
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int (*soc_suspend)(unsigned int state, int (*fn)(unsigned long));
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struct am33xx_pm_sram_addr *(*get_sram_addrs)(void);
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};
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struct am33xx_pm_sram_data {
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u32 wfi_flags;
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u32 l2_aux_ctrl_val;
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u32 l2_prefetch_ctrl_val;
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} __packed __aligned(8);
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struct am33xx_pm_ro_sram_data {
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u32 amx3_pm_sram_data_virt;
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u32 amx3_pm_sram_data_phys;
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} __packed __aligned(8);
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#endif /* __ASSEMBLER__ */
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#endif /* _LINUX_PLATFORM_DATA_PM33XX_H */
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