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/* SPDX-License-Identifier: GPL-2.0 */
/*
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* Copyright ( c ) 2008 Simtec Electronics
* Ben Dooks < ben @ simtec . co . uk >
*
* S3C24XX - Memory map definitions
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*/
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# ifndef __ASM_PLAT_MAP_S3C_H
# define __ASM_PLAT_MAP_S3C_H __FILE__
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# include "map.h"
ARM: s3c24xx: simplify mach/io.h
s3c24xx has a custom implementation of the inb/outb family of I/O
accessors, implementing both general register access and ISA I/O port
through a multiplexer.
As far as I can tell, the first case has never been needed, and certainly
is not used now, as drivers only use inb/outb to actually driver ISA or
PCI port I/O.
Similarly, the special ISA support is limited to a single machine, the
Simtec Electronics BAST (EB2410ITX) with its PC/104 expansion connector,
all other machines could simply use the generic implementation from
asm/io.h that expects a single memory-mapped address range for byte,
word and dword access. As no other machines besides BAST actually selects
CONFIG_ISA, this is likely not even necessary.
As a cleanup, remove support for the non-ISA access from the helpers,
and make the ISA access use the virtual address window that we use
elsewhere for PCI I/O ports. In configurations without the BAST machine,
this now falls back on the generic implementation from asm/io.h, but
the mach/io.h header is still relied on to include a number of other
header files implicitly.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200806182059.2431-7-krzk@kernel.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
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/*
* GPIO ports
*
* the calculation for the VA of this must ensure that
* it is the same distance apart from the UART in the
* phsyical address space , as the initial mapping for the IO
* is done as a 1 : 1 mapping . This puts it ( currently ) at
* 0xFA800000 , which is not in the way of any current mapping
* by the base system .
*/
# define S3C64XX_VA_GPIO S3C_ADDR_CPU(0x00000000)
# define S3C64XX_VA_MODEM S3C_ADDR_CPU(0x00100000)
# define S3C64XX_VA_USB_HSPHY S3C_ADDR_CPU(0x00200000)
# define S3C_VA_USB_HSPHY S3C64XX_VA_USB_HSPHY
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# include "map-s5p.h"
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# endif /* __ASM_PLAT_MAP_S3C_H */
