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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2018-06-13 21:49:31 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2018-06-13 21:49:31 +1000 |
| commit | ef2334e5c677868c249e61cdaf6ae205185750e3 (patch) | |
| tree | dd6de5ae561103fd1ab5a0d6d35427a192872cd1 | |
| parent | ea064f5405f1539356dcb6355f7c432b36979261 (diff) | |
| download | cf-fsi-ef2334e5c677868c249e61cdaf6ae205185750e3.tar.gz cf-fsi-ef2334e5c677868c249e61cdaf6ae205185750e3.zip | |
Add clock count in debug mode
Allows to verify that continuous clocking is working
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| -rw-r--r-- | cf-code/cf-fsi-fw.S | 7 | ||||
| -rw-r--r-- | cf-fsi-fw.h | 3 |
2 files changed, 9 insertions, 1 deletions
diff --git a/cf-code/cf-fsi-fw.S b/cf-code/cf-fsi-fw.S index e897eaa..6af7e25 100644 --- a/cf-code/cf-fsi-fw.S +++ b/cf-code/cf-fsi-fw.S @@ -67,9 +67,14 @@ .macro trace op:req move.b \op,%a3@+ .endm + .macro count_clock + addq.l #1,%a1@(CLK_CNT) + .endm #else .macro trace op:req .endm + .macro count_clock + .endm #endif /* @@ -82,6 +87,7 @@ move.l %DCLK,%a5@(0) bset.l %d5,%DCLK /* clock high */ move.l %DCLK,%a5@(0) + count_clock .endm /* clock_out_bit reg: Clock out bit 31 of reg */ @@ -131,6 +137,7 @@ move.l %a4@(0),\tmp /* actual read */ bset.l %d5,%DCLK /* clock high */ move.l %DCLK,%a5@(0) + count_clock moveq.l #DATA_GPIO_BIT,\tmp2 lsr.l \tmp2,\tmp moveq.l #1,\tmp2 diff --git a/cf-fsi-fw.h b/cf-fsi-fw.h index ac89eba..5d80bf5 100644 --- a/cf-fsi-fw.h +++ b/cf-fsi-fw.h @@ -103,8 +103,9 @@ /* Misc */ #define INT_CNT 0x30 /* 32-bit interrupt count */ -#define BAD_INT_VEC 0x34 +#define BAD_INT_VEC 0x34 /* 32-bit bad interrupt vector # */ #define CF_STARTED 0x38 /* byte, set to -1 when copro started */ +#define CLK_CNT 0x3c /* 32-bit, clock count (debug only) */ /* * SRAM layout: GPIO arbitration part |
