From: Thomas Koeller <[email protected]> Clear the enable bits for all clocks that are not set explicitly. This is done to increase robustness by removing pre-existing state.
Signed-off-by: Thomas Koeller <[email protected]> --- tcl/target/davinci.cfg | 21 ++++++++++++++++++++- 1 files changed, 20 insertions(+), 1 deletions(-) diff --git a/tcl/target/davinci.cfg b/tcl/target/davinci.cfg index 2267809..a22982d 100644 --- a/tcl/target/davinci.cfg +++ b/tcl/target/davinci.cfg @@ -197,63 +197,82 @@ proc pll_v03_setup {pll_addr mult config} { # 11 - optional: set plldiv1, plldiv2, ... # NOTE: this assumes some registers have their just-reset values: # - PLLSTAT.GOSTAT is clear when we enter - # - ALNCTL has everything set set aln 0 if { [dict exists $config div1] } { set div [dict get $config div1] set div [expr 0x8000 | ($div - 1)] mww [expr $pll_addr + 0x0118] $div set aln [expr $aln | 0x1] + } else { + mww [expr $pll_addr + 0x0118] 0 } if { [dict exists $config div2] } { set div [dict get $config div2] set div [expr 0x8000 | ($div - 1)] mww [expr $pll_addr + 0x011c] $div set aln [expr $aln | 0x2] + } else { + mww [expr $pll_addr + 0x011c] 0 } if { [dict exists $config div3] } { set div [dict get $config div3] set div [expr 0x8000 | ($div - 1)] mww [expr $pll_addr + 0x0120] $div set aln [expr $aln | 0x4] + } else { + mww [expr $pll_addr + 0x0120] 0 } if { [dict exists $config div4] } { set div [dict get $config div4] set div [expr 0x8000 | ($div - 1)] mww [expr $pll_addr + 0x0160] $div set aln [expr $aln | 0x8] + } else { + mww [expr $pll_addr + 0x0160] 0 } if { [dict exists $config div5] } { set div [dict get $config div5] set div [expr 0x8000 | ($div - 1)] mww [expr $pll_addr + 0x0164] $div set aln [expr $aln | 0x10] + } else { + mww [expr $pll_addr + 0x0164] 0 } if { [dict exists $config div6] } { set div [dict get $config div6] set div [expr 0x8000 | ($div - 1)] mww [expr $pll_addr + 0x0168] $div set aln [expr $aln | 0x20] + } else { + mww [expr $pll_addr + 0x0168] 0 } if { [dict exists $config div7] } { set div [dict get $config div7] set div [expr 0x8000 | ($div - 1)] mww [expr $pll_addr + 0x016c] $div set aln [expr $aln | 0x40] + } else { + mww [expr $pll_addr + 0x016c] 0 } if { [dict exists $config div8] } { set div [dict get $config div8] set div [expr 0x8000 | ($div - 1)] mww [expr $pll_addr + 0x0170] $div set aln [expr $aln | 0x80] + } else { + mww [expr $pll_addr + 0x0170] 0 } if { [dict exists $config div9] } { set div [dict get $config div9] set div [expr 0x8000 | ($div - 1)] mww [expr $pll_addr + 0x0174] $div set aln [expr $aln | 0x100] + } else { + mww [expr $pll_addr + 0x0174] 0 } if {$aln != 0} { + # clear pllcmd.GO + mww [expr $pll_addr + 0x0138] 0x00 # write alingment flags mww [expr $pll_addr + 0x0140] $aln # write pllcmd.GO; poll pllstat.GO -- 1.7.1 _______________________________________________ Openocd-development mailing list [email protected] https://lists.berlios.de/mailman/listinfo/openocd-development
