Embedded_Projects/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

include: fdtdec: decouple fdt_addr_t and phys_addr_t size

Browse Source 
The DT specification supports CPUs with both 32-bit and 64-bit addressing
capabilities. In U-boot the fdt_addr_t and phys_addr_t size are coupled
by a typedef. The MTD NAND drivers for 32-bit CPU's can describe partitions
with a 64-bit reg property. These partitions synced from Linux end up with
the wrong offset and sizes when only the lower 32-bit is passed.
Decouple the fdt_addr_t and phys_addr_t size as they don't necessary
match.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
This commit is contained in:
Johan Jonker 2023-03-13 01:33:23 +01:00 committed by Kever Yang
parent 55cd74d691
commit 53c5093b2e
2 changed files with 17 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
Kconfig
View File

@ -397,11 +397,19 @@ endif # EXPERT
config PHYS_64BIT
bool "64bit physical address support"
select FDT_64BIT
help
Say Y here to support 64bit physical memory address.
This can be used not only for 64bit SoCs, but also for
large physical address extension on 32bit SoCs.
config FDT_64BIT
bool "64bit fdt address support"
help
Say Y here to support 64bit fdt addresses.
This can be used not only for 64bit SoCs, but also
for large address extensions on 32bit SoCs.
config HAS_ROM
bool
select BINMAN

13
include/fdtdec.h
View File

@ -18,15 +18,18 @@
#include <pci.h>
/*
* A typedef for a physical address. Note that fdt data is always big
* Support for 64bit fdt addresses.
* This can be used not only for 64bit SoCs, but also
* for large address extensions on 32bit SoCs.
* Note that fdt data is always big
* endian even on a litle endian machine.
*/
typedef phys_addr_t fdt_addr_t;
typedef phys_size_t fdt_size_t;
#define FDT_SIZE_T_NONE (-1U)
#ifdef CONFIG_PHYS_64BIT
#ifdef CONFIG_FDT_64BIT
typedef u64 fdt_addr_t;
typedef u64 fdt_size_t;
#define FDT_ADDR_T_NONE ((ulong)(-1))
#define fdt_addr_to_cpu(reg) be64_to_cpu(reg)
@ -35,6 +38,8 @@ typedef phys_size_t fdt_size_t;
#define cpu_to_fdt_size(reg) cpu_to_be64(reg)
typedef fdt64_t fdt_val_t;
#else
typedef u32 fdt_addr_t;
typedef u32 fdt_size_t;
#define FDT_ADDR_T_NONE (-1U)
#define fdt_addr_to_cpu(reg) be32_to_cpu(reg)