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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* SPEAr3xx / 6 xx Machine family specific definition
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*
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* Copyright ( C ) 2009 , 2012 ST Microelectronics
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* Rajeev Kumar < rajeev - dlh . kumar @ st . com >
2015-07-17 16:23:50 -07:00
* Viresh Kumar < vireshk @ kernel . org >
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*/
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# ifndef __MACH_SPEAR_H
# define __MACH_SPEAR_H
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ARM: mm: Make virt_to_pfn() a static inline
Making virt_to_pfn() a static inline taking a strongly typed
(const void *) makes the contract of a passing a pointer of that
type to the function explicit and exposes any misuse of the
macro virt_to_pfn() acting polymorphic and accepting many types
such as (void *), (unitptr_t) or (unsigned long) as arguments
without warnings.
Doing this is a bit intrusive: virt_to_pfn() requires
PHYS_PFN_OFFSET and PAGE_SHIFT to be defined, and this is defined in
<asm/page.h>, so this must be included *before* <asm/memory.h>.
The use of macros were obscuring the unclear inclusion order here,
as the macros would eventually be resolved, but a static inline
like this cannot be compiled with unresolved macros.
The naive solution to include <asm/page.h> at the top of
<asm/memory.h> does not work, because <asm/memory.h> sometimes
includes <asm/page.h> at the end of itself, which would create a
confusing inclusion loop. So instead, take the approach to always
unconditionally include <asm/page.h> at the end of <asm/memory.h>
arch/arm uses <asm/memory.h> explicitly in a lot of places,
however it turns out that if we just unconditionally include
<asm/memory.h> into <asm/page.h> and switch all inclusions of
<asm/memory.h> to <asm/page.h> instead, we enforce the right
order and <asm/memory.h> will always have access to the
definitions.
Put an inclusion guard in place making it impossible to include
<asm/memory.h> explicitly.
Link: https://lore.kernel.org/linux-mm/20220701160004.2ffff4e5ab59a55499f4c736@linux-foundation.org/
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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# include <asm/page.h>
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# if defined(CONFIG_ARCH_SPEAR3XX) || defined (CONFIG_ARCH_SPEAR6XX)
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/* ICM1 - Low speed connection */
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# define SPEAR_ICM1_2_BASE UL(0xD0000000)
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# define VA_SPEAR_ICM1_2_BASE IOMEM(0xFD000000)
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# define SPEAR_ICM1_UART_BASE UL(0xD0000000)
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# define VA_SPEAR_ICM1_UART_BASE (VA_SPEAR_ICM1_2_BASE - SPEAR_ICM1_2_BASE + SPEAR_ICM1_UART_BASE)
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# define SPEAR3XX_ICM1_SSP_BASE UL(0xD0100000)
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/* ML-1, 2 - Multi Layer CPU Subsystem */
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# define SPEAR_ICM3_ML1_2_BASE UL(0xF0000000)
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# define VA_SPEAR6XX_ML_CPU_BASE IOMEM(0xF0000000)
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/* ICM3 - Basic Subsystem */
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# define SPEAR_ICM3_SMI_CTRL_BASE UL(0xFC000000)
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# define VA_SPEAR_ICM3_SMI_CTRL_BASE IOMEM(0xFC000000)
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# define SPEAR_ICM3_DMA_BASE UL(0xFC400000)
# define SPEAR_ICM3_SYS_CTRL_BASE UL(0xFCA00000)
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# define VA_SPEAR_ICM3_SYS_CTRL_BASE (VA_SPEAR_ICM3_SMI_CTRL_BASE - SPEAR_ICM3_SMI_CTRL_BASE + SPEAR_ICM3_SYS_CTRL_BASE)
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# define SPEAR_ICM3_MISC_REG_BASE UL(0xFCA80000)
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# define VA_SPEAR_ICM3_MISC_REG_BASE (VA_SPEAR_ICM3_SMI_CTRL_BASE - SPEAR_ICM3_SMI_CTRL_BASE + SPEAR_ICM3_MISC_REG_BASE)
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/* Debug uart for linux, will be used for debug and uncompress messages */
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# define SPEAR_DBG_UART_BASE SPEAR_ICM1_UART_BASE
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/* Sysctl base for spear platform */
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# define SPEAR_SYS_CTRL_BASE SPEAR_ICM3_SYS_CTRL_BASE
# define VA_SPEAR_SYS_CTRL_BASE VA_SPEAR_ICM3_SYS_CTRL_BASE
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# endif /* SPEAR3xx || SPEAR6XX */
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/* SPEAr320 Macros */
# define SPEAR320_SOC_CONFIG_BASE UL(0xB3000000)
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# define VA_SPEAR320_SOC_CONFIG_BASE IOMEM(0xFE000000)
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# ifdef CONFIG_ARCH_SPEAR13XX
# define PERIP_GRP2_BASE UL(0xB3000000)
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# define VA_PERIP_GRP2_BASE IOMEM(0xF9000000)
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# define MCIF_SDHCI_BASE UL(0xB3000000)
# define SYSRAM0_BASE UL(0xB3800000)
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# define VA_SYSRAM0_BASE IOMEM(0xF9800000)
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# define SYS_LOCATION (VA_SYSRAM0_BASE + 0x600)
# define PERIP_GRP1_BASE UL(0xE0000000)
# define VA_PERIP_GRP1_BASE IOMEM(0xFD000000)
# define UART_BASE UL(0xE0000000)
# define VA_UART_BASE IOMEM(0xFD000000)
# define SSP_BASE UL(0xE0100000)
# define MISC_BASE UL(0xE0700000)
# define VA_MISC_BASE IOMEM(0xFD700000)
# define A9SM_AND_MPMC_BASE UL(0xEC000000)
# define VA_A9SM_AND_MPMC_BASE IOMEM(0xFC000000)
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# define SPEAR1310_RAS_BASE UL(0xD8400000)
# define VA_SPEAR1310_RAS_BASE IOMEM(UL(0xFA400000))
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/* A9SM peripheral offsets */
# define A9SM_PERIP_BASE UL(0xEC800000)
# define VA_A9SM_PERIP_BASE IOMEM(0xFC800000)
# define VA_SCU_BASE (VA_A9SM_PERIP_BASE + 0x00)
# define L2CC_BASE UL(0xED000000)
# define VA_L2CC_BASE IOMEM(UL(0xFB000000))
/* others */
# define MCIF_CF_BASE UL(0xB2800000)
/* Debug uart for linux, will be used for debug and uncompress messages */
# define SPEAR_DBG_UART_BASE UART_BASE
# endif /* SPEAR13XX */
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# endif /* __MACH_SPEAR_H */