summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorEd Swarthout <Ed.Swarthout@freescale.com>2013-03-25 07:40:09 +0000
committerAndy Fleming <afleming@freescale.com>2013-05-24 16:54:11 -0500
commit428ea86c646fd9b485bfb015cd6293e345e6bb3e (patch)
tree1e04c819590e93ddde96eba2f95deb6c41a82f93
parent1b294b7a932aa89c5991e8b200616934849dc3c6 (diff)
downloadu-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>
-rw-r--r--board/freescale/common/qixis.h6
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;