From 40f361dd944803e500169337fffe7713842fd632 Mon Sep 17 00:00:00 2001
From: oharboe <oharboe@b42882b7-edfa-0310-969c-e2dbd0fdcd60>
Date: Sat, 12 Sep 2009 08:11:45 +0000
Subject: David Brownell <david-b@pacbell.net> Update the board config for the
DaVinci DM355 EVM so the reset-init event handler does the rest of the work
it should do:
- minor PLL setup bugfixes
- initialize the DDR2 controller
- probe both NAND banks
- initialize UART0
- enable the icache
git-svn-id: svn://svn.berlios.de/openocd/trunk@2699 b42882b7-edfa-0310-969c-e2dbd0fdcd60
---
tcl/board/dm355evm.cfg | 87 +++++++++++++++++++++++++++++++++++++++++++++++--
tcl/target/davinci.cfg | 10 +++++-
tcl/target/ti_dm355.cfg | 3 ++
3 files changed, 96 insertions(+), 4 deletions(-)
(limited to 'tcl')
diff --git a/tcl/board/dm355evm.cfg b/tcl/board/dm355evm.cfg
index 9b32ef9e..bb745005 100644
--- a/tcl/board/dm355evm.cfg
+++ b/tcl/board/dm355evm.cfg
@@ -35,7 +35,7 @@ proc dm355evm_init {} {
set addr [dict get $dm355 pllc1]
set pll_divs [dict create]
dict set pll_divs div3 16
- dict set pll_divs div4 8
+ dict set pll_divs div4 4
pll_v02_setup $addr 144 $pll_divs
# ARM is now running at 216 MHz, so JTAG can go faster
@@ -48,6 +48,7 @@ proc dm355evm_init {} {
set addr [dict get $dm355 pllc2]
set pll_divs [dict create]
+ dict set pll_divs div1 1
dict set pll_divs prediv 8
pll_v02_setup $addr 114 $pll_divs
@@ -77,7 +78,54 @@ proc dm355evm_init {} {
########################
# DDR2 EMIF
- # FIXME setup
+ # VTPIOCR impedance calibration
+ set addr [dict get $dm355 sysbase]
+ set addr [expr $addr + 0x70]
+
+ # clear CLR, LOCK, PWRDN; wait a clock; set CLR
+ mmw $addr 0 0x20c0
+ mmw $addr 0x2000 0
+
+ # wait for READY
+ while { [expr [mrw $addr] & 0x8000] == 0 } { sleep 1 }
+
+ # set IO_READY; then LOCK and PWRSAVE; then PWRDN
+ mmw $addr 0x4000 0
+ mmw $addr 0x0180 0
+ mmw $addr 0x0040 0
+
+ # NOTE: this DDR2 initialization sequence borrows from
+ # both UBL 1.50 and the SPRUEH7D DDR2 EMIF spec.
+
+ # reset (then re-enable) DDR controller
+ psc_reset 13
+ psc_go
+ psc_enable 13
+ psc_go
+
+ # now set it up for Micron MT47H64M16HR-37E @ 171 MHz
+
+ set addr [dict get $dm355 ddr_emif]
+
+ # DDRPHYCR1
+ mww [expr $addr + 0xe4] 0x50006404
+
+ # PBBPR -- burst priority
+ mww [expr $addr + 0x20] 0xfe
+
+ # SDCR -- unlock boot config; init for DDR2, relock, unlock SDTIM*
+ mmw [expr $addr + 0x08] 0x00800000 0
+ mmw [expr $addr + 0x08] 0x0013c632 0x03870fff
+
+ # SDTIMR, SDTIMR2
+ mww [expr $addr + 0x10] 0x2a923249
+ mww [expr $addr + 0x14] 0x4c17c763
+
+ # SDCR -- relock SDTIM*
+ mmw [expr $addr + 0x08] 0 0x00008000
+
+ # SDRCR -- refresh rate (171 MHz * 7.8usec)
+ mww [expr $addr + 0x0c] 1336
########################
# ASYNC EMIF
@@ -98,10 +146,43 @@ proc dm355evm_init {} {
# NANDFCR -- only CS0 has NAND
mww [expr $addr + 0x60] 0x01
+ # default: both chipselects to the NAND socket are used
+ nand probe 0
+ nand probe 1
+
########################
# UART0
- # FIXME setup
+ set addr [dict get $dm355 uart0]
+
+ # PWREMU_MGNT -- rx + tx in reset
+ mww [expr $addr + 0x30] 0
+
+ # DLL, DLH -- 115200 baud
+ mwb [expr $addr + 0x20] 0x0d
+ mwb [expr $addr + 0x24] 0x00
+
+ # FCR - clear and disable FIFOs
+ mwb [expr $addr + 0x08] 0x07
+ mwb [expr $addr + 0x08] 0x00
+
+ # IER - disable IRQs
+ mwb [expr $addr + 0x04] 0x00
+
+ # LCR - 8-N-1
+ mwb [expr $addr + 0x0c] 0x03
+
+ # MCR - no flow control or loopback
+ mwb [expr $addr + 0x10] 0x00
+
+ # PWREMU_MGNT -- rx + tx normal, free running during JTAG halt
+ mww [expr $addr + 0x30] 0xe001
+
+
+ ########################
+
+ # turn on icache - set I bit in cp15 register c1
+ arm926ejs cp15 0 0 1 0 0x00051078
}
# NAND -- socket has two chipselects, MT29F16G08FAA puts 1GByte on each one.
diff --git a/tcl/target/davinci.cfg b/tcl/target/davinci.cfg
index 07a26b21..658e7fe5 100644
--- a/tcl/target/davinci.cfg
+++ b/tcl/target/davinci.cfg
@@ -125,6 +125,7 @@ proc pll_v02_setup {pll_addr mult config} {
set pllstat [expr $pll_addr + 0x013c]
while {[expr [mrw $pllstat] & 0x01] != 0} { sleep 1 }
}
+ mww [expr $pll_addr + 0x0138] 0x00
# 11 - wait at least 5 usec for reset to finish
# (assume covered by overheads including JTAG messaging)
@@ -152,7 +153,14 @@ proc psc_enable {module} {
mmw [expr $psc_addr + 0x0a00 + (4 * $module)] 0x03 0x1f
}
-# execute non-DSP PSC transition(s) set up by psc_enable
+# prepare a non-DSP module to be reset; finish with psc_go
+proc psc_reset {module} {
+ set psc_addr 0x01c41000
+ # write MDCTL
+ mmw [expr $psc_addr + 0x0a00 + (4 * $module)] 0x01 0x1f
+}
+
+# execute non-DSP PSC transition(s) set up by psc_enable, psc_reset, etc
proc psc_go {} {
set psc_addr 0x01c41000
set ptstat_addr [expr $psc_addr + 0x0128]
diff --git a/tcl/target/ti_dm355.cfg b/tcl/target/ti_dm355.cfg
index da05e734..e5ef8cd2 100644
--- a/tcl/target/ti_dm355.cfg
+++ b/tcl/target/ti_dm355.cfg
@@ -65,6 +65,9 @@ dict set dm355 a_emif_cs0 0x02000000
dict set dm355 a_emif_cs1 0x04000000
dict set dm355 ddr_emif 0x20000000
dict set dm355 ddr 0x80000000
+dict set dm355 uart0 0x01c20000
+dict set dm355 uart1 0x01c20400
+dict set dm355 uart2 0x01e06000
source [find target/davinci.cfg]
--
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