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| author | Steven Miao <realmz6@gmail.com> | 2013-09-12 16:36:16 +0800 |
|---|---|---|
| committer | Steven Miao <realmz6@gmail.com> | 2013-09-13 10:42:27 +0800 |
| commit | 24a70cf2b28e24aa31c4f9bc310cc274c0a90183 (patch) | |
| tree | 83329a8bfaf013146ba394e1285e283df1056f19 /arch/blackfin/include | |
| parent | 6e4664525b1db28f8c4e1130957f70a94c19213e (diff) | |
| download | lwn-24a70cf2b28e24aa31c4f9bc310cc274c0a90183.tar.gz lwn-24a70cf2b28e24aa31c4f9bc310cc274c0a90183.zip | |
blackfin: scb: Add system crossbar init code.
If SCB exists in select blackfin cpu, developer can change the SCB
priority in kernel configuration.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Steven Miao <realmz6@gmail.com>
Diffstat (limited to 'arch/blackfin/include')
| -rw-r--r-- | arch/blackfin/include/asm/scb.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/scb.h b/arch/blackfin/include/asm/scb.h new file mode 100644 index 000000000000..a294cc0d1a4a --- /dev/null +++ b/arch/blackfin/include/asm/scb.h @@ -0,0 +1,21 @@ +/* + * arch/blackfin/mach-common/scb-init.c - reprogram system cross bar priority + * + * Copyright 2012 Analog Devices Inc. + * + * Licensed under the GPL-2 or later. + */ + +#define SCB_SLOT_OFFSET 24 +#define SCB_MI_MAX_SLOT 32 + +struct scb_mi_prio { + unsigned long scb_mi_arbr; + unsigned long scb_mi_arbw; + unsigned char scb_mi_slots; + unsigned char scb_mi_prio[SCB_MI_MAX_SLOT]; +}; + +extern struct scb_mi_prio scb_data[]; + +extern void init_scb(void); |