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u-boot/arch/mips/include/asm/global_data.h

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SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-06 21:58:06 +00:00
/* SPDX-License-Identifier: GPL-2.0+ */
* Add support for 16 MB flash configuration of TRAB board * Patch by Erwin Rol, 27 Feb 2003: Add support for RTEMS * Add image information to README * Fix dual PCMCIA slot support (when running with just one slot populated) * Add VFD type detection to trab board * extend drivers/cs8900.c driver to synchronize ethaddr environment variable with value in the EEPROM * Start adding MIPS support files
2003-02-28 00:49:47 +00:00
/*
Make getenv() work before relocation. So far, getenv() would work before relocation is most cases, even though it was not intended to be used that way. When switching to a hash table based implementation, this would break a number of boards. For convenience, we make getenv() check if it's running before relocation and, if so, use getenv_f() internally. Note that this is limited to simple cases, as we use a small static buffer (32 bytes) in the global data for this purpose. For this reason, it is also not a good idea to convert all current uses of getenv_f() into getenv() - some of the existing use cases need to be able to deal with longer variable values, so getenv_f() is still needed and recommended for use before relocation. Signed-off-by: Wolfgang Denk <wd@denx.de>
2010-07-24 18:22:02 +00:00
* (C) Copyright 2002-2010
* Add support for 16 MB flash configuration of TRAB board * Patch by Erwin Rol, 27 Feb 2003: Add support for RTEMS * Add image information to README * Fix dual PCMCIA slot support (when running with just one slot populated) * Add VFD type detection to trab board * extend drivers/cs8900.c driver to synchronize ethaddr environment variable with value in the EEPROM * Start adding MIPS support files
2003-02-28 00:49:47 +00:00
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*/
#ifndef __ASM_GBL_DATA_H
#define __ASM_GBL_DATA_H
#include <asm/regdef.h>
Add architecture-specific global data We plan to move architecture-specific data into a separate structure so that we can make the rest of it common. As a first step, create struct arch_global_data to hold these fields. Initially it is empty. This patch applies to all archs at once. I can split it if this is really a pain. Signed-off-by: Simon Glass <sjg@chromium.org>
2012-12-13 20:48:30 +00:00
/* Architecture-specific global data */
struct arch_global_data {
MIPS: Support dynamic I/O port base address The existing mips_io_port_base variable isn't suitable for use early during boot since it will be stored in the .data section which may not be writable pre-relocation. Fix this by moving the I/O port base address into struct arch_global_data. In order to avoid adding this field for all targets, make this dependant upon a new Kconfig entry CONFIG_DYNAMIC_IO_PORT_BASE. Malta is the only board which sets a non-zero I/O port base, so select this option only for Malta. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
2016-01-29 13:54:52 +00:00
#ifdef CONFIG_DYNAMIC_IO_PORT_BASE
unsigned long io_port_base;
#endif
mips: add base support for QCA/Atheros ath79 SOCs This patch add some common code for QCA/Atheros ath79 SOCs such as DDR tuning, chip reset and CPU detection. Signed-off-by: Wills Wang <wills.wang@live.com>
2016-03-16 08:59:52 +00:00
#ifdef CONFIG_ARCH_ATH79
unsigned long id;
unsigned long soc;
unsigned long rev;
unsigned long ver;
#endif
MIPS: Probe cache line sizes once during boot Rather than probing the cache line sizes on every call of any cache maintenance function, probe them once during boot & store the values in the global data structure for later use. This will reduce the overhead of the cache maintenance functions, which isn't a big deal yet but becomes more important once L2 caches which may expose their properties via coprocessor 2 or the CM are supported. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
2016-09-21 10:18:48 +00:00
#ifdef CONFIG_SYS_CACHE_SIZE_AUTO
unsigned short l1i_line_size;
unsigned short l1d_line_size;
#endif
MIPS: L2 cache support This patch adds support for initialising & maintaining L2 caches on MIPS systems. The L2 cache configuration may be advertised through either coprocessor 0 or the MIPS Coherence Manager depending upon the system, and support for both is included. If the L2 can be bypassed then we bypass it early in boot & initialise the L1 caches first, such that we can start making use of the L1 instruction cache as early as possible. Otherwise we initialise the L2 first such that the L1s have no opportunity to generate access to the uninitialised L2. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
2016-09-21 10:18:54 +00:00
#ifdef CONFIG_MIPS_L2_CACHE
unsigned short l2_line_size;
#endif
Add architecture-specific global data We plan to move architecture-specific data into a separate structure so that we can make the rest of it common. As a first step, create struct arch_global_data to hold these fields. Initially it is empty. This patch applies to all archs at once. I can split it if this is really a pain. Signed-off-by: Simon Glass <sjg@chromium.org>
2012-12-13 20:48:30 +00:00
};
mips: Use generic global_data Move mips over to use generic global_data. Signed-off-by: Simon Glass <sjg@chromium.org>
2012-12-13 20:49:19 +00:00
#include <asm-generic/global_data.h>
* Add support for 16 MB flash configuration of TRAB board * Patch by Erwin Rol, 27 Feb 2003: Add support for RTEMS * Add image information to README * Fix dual PCMCIA slot support (when running with just one slot populated) * Add VFD type detection to trab board * extend drivers/cs8900.c driver to synchronize ethaddr environment variable with value in the EEPROM * Start adding MIPS support files
2003-02-28 00:49:47 +00:00
* Implement new mechanism to export U-Boot's functions to standalone applications: instead of using (PPC-specific) system calls we now use a jump table; please see doc/README.standalone for details * Patch by Dave Westwood, 24 Jul 2003: added support for Unity OS (a proprietary OS)
2003-07-24 23:38:38 +00:00
#define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("k0")
* Add support for 16 MB flash configuration of TRAB board * Patch by Erwin Rol, 27 Feb 2003: Add support for RTEMS * Add image information to README * Fix dual PCMCIA slot support (when running with just one slot populated) * Add VFD type detection to trab board * extend drivers/cs8900.c driver to synchronize ethaddr environment variable with value in the EEPROM * Start adding MIPS support files
2003-02-28 00:49:47 +00:00
#endif /* __ASM_GBL_DATA_H */
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