u-boot.git/common/memsize.c, branch v2024.01

common/memsize.c: Fix get_ram_size() when cache is enabled

2023-06-21T20:54:25Z

Ensure that every write is flushed to memory and afterward reads are from memory. Since the algorithm rely on the fact that accessing to not existent memory lead to write at addr / 2 without this modification accesses to aliased (not physically present) addresses are cached and wrong size is returned. This was discovered while working on a TI AM625 based board where cache is normally enabled, see commit c02712a74849 ("arm: mach-k3: Enable dcache in SPL"). Signed-off-by: Emanuele Ghidoli Signed-off-by: Francesco Dolcini

Merge branch 'next'

2023-01-09T16:30:08Z

Signed-off-by: Tom Rini

common/memsize.c: Check for overflow in get_effective_memsize() only for mpc85xx

2023-01-07T23:01:53Z

This reverts commit 777aaaa706bc ("common/memsize.c: Fix get_effective_memsize() to check for overflow") for non-mpc85xx platforms. The changes to this generic function, which is intended to help with 32bit platforms with large amounts of memory has unintended side effects (which in turn lead to boot failures) on other platforms which were previously functional. For now do overflow check only for powerpc mpc85xx platform. It is needed to prevent crashing of P1/P2 boards with 4GB DDR module in 32-bit mode. Fixes: 777aaaa706bc ("common/memsize.c: Fix get_effective_memsize() to check for overflow") Signed-off-by: Pali Rohár

global: Migrate CONFIG_MAX_MEM_MAPPED to CFG

2022-12-23T15:14:51Z

Perform a simple rename of CONFIG_MAX_MEM_MAPPED to CFG_MAX_MEM_MAPPED Signed-off-by: Tom Rini

common/memsize.c: Fix get_effective_memsize() to check for overflow

2022-09-23T19:11:13Z

Ensure that top of RAM can be represented by phys_size_t type. If RAM is too large or RAM base address is too upper then limit RAM size to prevent address space overflow. Signed-off-by: Pali Rohár

common/memsize.c: Fix get_effective_memsize() to always check for CONFIG_MAX_MEM_MAPPED

2022-09-23T19:11:13Z

CONFIG_MAX_MEM_MAPPED when defined specifies upper memory mapped limit. So check for it always, and not only when CONFIG_VERY_BIG_RAM is defined. Signed-off-by: Pali Rohár

common: Drop asm/global_data.h from common header

2021-02-02T20:33:42Z

Move this out of the common header and include it only where needed. In a number of cases this requires adding "struct udevice;" to avoid adding another large header or in other cases replacing / adding missing header files that had been pulled in, very indirectly. Finally, we have a few cases where we did not need to include at all, so remove that include. Signed-off-by: Simon Glass Signed-off-by: Tom Rini

common: Move RAM-sizing functions to init.h

2020-01-17T19:02:35Z

These functions relate to memory init so move them into the init header. Signed-off-by: Simon Glass

common/memsize.c: Increase save array for supporting memory size > 4GB

2018-07-10T20:55:59Z

In ARM 64-bits, memory size can be supported is more than 4GB, hence increasing save array is needed to cope with testing larger memory. Signed-off-by: Tien Fong Chee

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07T13:34:12Z

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