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>

diff --git a/board/freescale/common/qixis.h b/board/freescale/common/qixis.h
index 8d914d54859ce134eaa076b5e9173482346ff49b..2cf87383d0c23e8b9b2c35d965ef8ca157b8479e 100644 (file)
--- 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;