diff options
| author | Paul Burton <paul.burton@imgtec.com> | 2016-01-29 13:54:52 +0000 |
|---|---|---|
| committer | Daniel Schwierzeck <daniel.schwierzeck@gmail.com> | 2016-02-01 22:13:25 +0100 |
| commit | 05e342554e51767830d7e60f2dab09192fd2a0e1 (patch) | |
| tree | cabb4ea65f984769ddf00424672ac08bdaf1c161 /arch/mips/include/asm/global_data.h | |
| parent | 8ac493cd65ea2af5f9b79f7f71edf543b46da112 (diff) | |
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>
Diffstat (limited to 'arch/mips/include/asm/global_data.h')
| -rw-r--r-- | arch/mips/include/asm/global_data.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/mips/include/asm/global_data.h b/arch/mips/include/asm/global_data.h index 2d9a0c9e75..a1ca257db5 100644 --- a/arch/mips/include/asm/global_data.h +++ b/arch/mips/include/asm/global_data.h @@ -12,6 +12,9 @@ /* Architecture-specific global data */ struct arch_global_data { +#ifdef CONFIG_DYNAMIC_IO_PORT_BASE + unsigned long io_port_base; +#endif #ifdef CONFIG_JZSOC /* There are other clocks in the jz4740 */ unsigned long per_clk; /* Peripheral bus clock */ |