# SPDX-License-Identifier: GPL-2.0-or-later

################################################################################
# Atmel AT91SAM9261-EK eval board
################################################################################

source [find mem_helper.tcl]
source [find target/at91sam9261.cfg]
uplevel #0 [list source [find chip/atmel/at91/hardware.cfg]]
uplevel #0 [list source [find chip/atmel/at91/at91sam9261.cfg]]
uplevel #0 [list source [find chip/atmel/at91/at91sam9261_matrix.cfg]]
uplevel #0 [list source [find chip/atmel/at91/at91sam9_init.cfg]]

# By default S1 is open and this means that NTRST is not connected.
# The reset_config in target/at91sam9261.cfg is overridden here.
# (or S1 must be populated with a 0 Ohm resistor)
reset_config srst_only

scan_chain
$_TARGETNAME configure -event gdb-attach { reset init }
$_TARGETNAME configure -event reset-init { at91sam9261ek_reset_init }
$_TARGETNAME configure -event reset-start { at91sam9_reset_start }

proc at91sam9261ek_reset_init { } {

	;# for ppla at 199 Mhz
	set config(master_pll_div)	15
	set config(master_pll_mul)	162

	;# for ppla at 239 Mhz
	;# set master_pll_div	1
	;# set master_pll_mul	13

	set val	$::AT91_WDT_WDV							;# Counter Value
	set val	[expr {$val | $::AT91_WDT_WDDIS}]		;# Watchdog Disable
	set val	[expr {$val | $::AT91_WDT_WDD}]			;# Delta Value
	set val	[expr {$val | $::AT91_WDT_WDDBGHLT}]	;# Debug Halt
	set val	[expr {$val | $::AT91_WDT_WDIDLEHLT}]	;# Idle Halt

	set config(wdt_mr_val) $val

	;# EBI_CSA, no pull-ups for D[15:0], CS1 SDRAM, CS3 NAND Flash
	set config(matrix_ebicsa_addr)	$::AT91_MATRIX_EBICSA
	set config(matrix_ebicsa_val) [expr {$::AT91_MATRIX_DBPUC | $::AT91_MATRIX_CS1A_SDRAMC}]

	;# SDRAMC_CR - Configuration register
	set val $::AT91_SDRAMC_NC_9
	set val [expr {$val | $::AT91_SDRAMC_NR_13}]
	set val [expr {$val | $::AT91_SDRAMC_NB_4}]
	set val [expr {$val | $::AT91_SDRAMC_CAS_3}]
	set val [expr {$val | $::AT91_SDRAMC_DBW_32}]
	set val [expr {$val | (2 <<  8)}]		;# Write Recovery Delay
	set val [expr {$val | (7 << 12)}]		;# Row Cycle Delay
	set val [expr {$val | (3 << 16)}]		;# Row Precharge Delay
	set val [expr {$val | (2 << 20)}]		;# Row to Column Delay
	set val [expr {$val | (5 << 24)}]		;# Active to Precharge Delay
	set val [expr {$val | (8 << 28)}]		;# Exit Self Refresh to Active Delay

	set config(sdram_cr_val) $val

	set config(sdram_tr_val) 0x13c

	set config(sdram_base) $::AT91_CHIPSELECT_1
	at91sam9_reset_init $config
}
