Use SPMR instead of HRCWL when calculating clocks as HCRWL
may be changed and the CPU will not pick up all changes
until there is a POR. u-boot will think SPMF has changed and get
the clocks wrong.
Signed-off-by: Joakim Tjernlund <joakim.tjernl...@transmode.se>
---
arch/powerpc/cpu/mpc83xx/speed.c | 15 ++++++++-------
include/mpc83xx.h | 7 +++++++
2 files changed, 15 insertions(+), 7 deletions(-)
diff --git a/arch/powerpc/cpu/mpc83xx/speed.c b/arch/powerpc/cpu/mpc83xx/speed.c
index 500eef1..55290b4 100644
--- a/arch/powerpc/cpu/mpc83xx/speed.c
+++ b/arch/powerpc/cpu/mpc83xx/speed.c
@@ -159,7 +159,7 @@ int get_clocks(void)
#endif
}
- spmf = ((im->reset.rcwl & HRCWL_SPMF) >> HRCWL_SPMF_SHIFT);
+ spmf = ((im->clk.spmr & SPMR_SPMF) >> SPMR_SPMF_SHIFT);
csb_clk = pci_sync_in * (1 + clkin_div) * spmf;
sccr = im->clk.sccr;
@@ -387,7 +387,7 @@ int get_clocks(void)
#endif
lbiu_clk = csb_clk *
- (1 + ((im->reset.rcwl & HRCWL_LBIUCM) >>
HRCWL_LBIUCM_SHIFT));
+ (1 + ((im->clk.spmr & SPMR_LBIUCM) >> SPMR_LBIUCM_SHIFT));
lcrr = (im->lbus.lcrr & LCRR_CLKDIV) >> LCRR_CLKDIV_SHIFT;
switch (lcrr) {
case 2:
@@ -401,11 +401,12 @@ int get_clocks(void)
}
mem_clk = csb_clk *
- (1 + ((im->reset.rcwl & HRCWL_DDRCM) >> HRCWL_DDRCM_SHIFT));
- corepll = (im->reset.rcwl & HRCWL_COREPLL) >> HRCWL_COREPLL_SHIFT;
+ (1 + ((im->clk.spmr & SPMR_DDRCM) >> SPMR_DDRCM_SHIFT));
+ corepll = (im->clk.spmr & SPMR_COREPLL) >> SPMR_COREPLL_SHIFT;
+
#if defined(CONFIG_MPC8360)
mem_sec_clk = csb_clk * (1 +
- ((im->reset.rcwl & HRCWL_LBIUCM) >> HRCWL_LBIUCM_SHIFT));
+ ((im->clk.spmr & SPMR_LBIUCM) >> SPMR_LBIUCM_SHIFT));
#endif
corecnf_tab_index = ((corepll & 0x1F) << 2) | ((corepll & 0x60) >> 5);
@@ -437,8 +438,8 @@ int get_clocks(void)
}
#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832x)
- qepmf = (im->reset.rcwl & HRCWL_CEPMF) >> HRCWL_CEPMF_SHIFT;
- qepdf = (im->reset.rcwl & HRCWL_CEPDF) >> HRCWL_CEPDF_SHIFT;
+ qepmf = (im->clk.spmr & SPMR_CEPMF) >> SPMR_CEPMF_SHIFT;
+ qepdf = (im->clk.spmr & SPMR_CEPDF) >> SPMR_CEPDF_SHIFT;
qe_clk = (pci_sync_in * qepmf) / (1 + qepdf);
brg_clk = qe_clk / 2;
#endif
diff --git a/include/mpc83xx.h b/include/mpc83xx.h
index 5214911..a46a3aa 100644
--- a/include/mpc83xx.h
+++ b/include/mpc83xx.h
@@ -642,14 +642,21 @@
/* SPMR - System PLL Mode Register
*/
#define SPMR_LBIUCM 0x80000000
+#define SPMR_LBIUCM_SHIFT 31
#define SPMR_DDRCM 0x40000000
+#define SPMR_DDRCM_SHIFT 30
#define SPMR_SPMF 0x0F000000
+#define SPMR_SPMF_SHIFT 24
#define SPMR_CKID 0x00800000
#define SPMR_CKID_SHIFT 23
#define SPMR_COREPLL 0x007F0000
+#define SPMR_COREPLL_SHIFT 16
#define SPMR_CEVCOD 0x000000C0
+#define SPMR_CEVCOD_SHIFT 6
#define SPMR_CEPDF 0x00000020
+#define SPMR_CEPDF_SHIFT 5
#define SPMR_CEPMF 0x0000001F
+#define SPMR_CEPMF_SHIFT 0
/* OCCR - Output Clock Control Register
*/
--
1.7.3.4
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