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| author | Ed Swarthout <Ed.Swarthout@freescale.com> | 2013-03-25 07:40:09 +0000 |
|---|---|---|
| committer | Andy Fleming <afleming@freescale.com> | 2013-05-24 16:54:11 -0500 |
| commit | 428ea86c646fd9b485bfb015cd6293e345e6bb3e (patch) | |
| tree | 1e04c819590e93ddde96eba2f95deb6c41a82f93 /board | |
| parent | 1b294b7a932aa89c5991e8b200616934849dc3c6 (diff) | |
| download | u-boot-imx-428ea86c646fd9b485bfb015cd6293e345e6bb3e.zip u-boot-imx-428ea86c646fd9b485bfb015cd6293e345e6bb3e.tar.gz u-boot-imx-428ea86c646fd9b485bfb015cd6293e345e6bb3e.tar.bz2 | |
powerpc/qixis: add clock measurement registers
QIXIS includes frequency measurement functions for each major processor
clock input. After reset (and after clocks are stable), QIXIS measures
the clocks against a reference frequency and stores the results in
CLK_FREQ registers. A base register supplies a multiplier which allows
directly obtaining the measured value, without requiring knowledge of
the target system or QIXIS core frequency.
Signed-off-by: Ed Swarthout <Ed.Swarthout@freescale.com>
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Diffstat (limited to 'board')
| -rw-r--r-- | board/freescale/common/qixis.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/board/freescale/common/qixis.h b/board/freescale/common/qixis.h index 8d914d5..2cf8738 100644 --- a/board/freescale/common/qixis.h +++ b/board/freescale/common/qixis.h @@ -78,7 +78,11 @@ struct qixis { u8 trig_stat; u8 res12[3]; u8 trig_ctr[4]; - u8 res13[48]; + u8 res13[16]; + u8 clk_freq[6]; /* Clock Measurement Registers */ + u8 res_c6[8]; + u8 clk_base[2]; /* Clock Frequency Base Reg */ + u8 res_d0[16]; u8 aux2[4]; /* Auxiliary Registers,0xE0 */ u8 res14[10]; u8 aux_ad; |