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

# Renesas R-Car Generation 2 SOCs
# - There are a combination of Cortex-A15s and Cortex-A7s for each Gen2 SOC
# - Each SOC can boot through any of the, up to 2, core types that it has
#   e.g. H2 can boot through Cortex-A15 or Cortex-A7

# Supported Gen2 SOCs and their cores:
# H2:  Cortex-A15 x 4, Cortex-A7 x 4
# M2:  Cortex-A15 x 2
# V2H: Cortex-A15 x 2
# M2N: Cortex-A15 x 2
# E2:                  Cortex-A7 x 2

# Usage:
# There are 2 configuration options:
# SOC:       Selects the supported SOC. (Default 'H2')
# BOOT_CORE: Selects the booting core. 'CA15', or 'CA7'
#            Defaults to 'CA15' if the SOC has one, else defaults to 'CA7'

if { [info exists SOC] } {
	set _soc $SOC
} else {
	set _soc H2
}

# Set configuration for each SOC and the default 'BOOT_CORE'
switch $_soc {
	H2 {
		set _CHIPNAME r8a7790
		set _num_ca15 4
		set _num_ca7 4
		set _boot_core CA15
	}
	M2 {
		set _CHIPNAME r8a7791
		set _num_ca15 2
		set _num_ca7 0
		set _boot_core CA15
	}
	V2H {
		set _CHIPNAME r8a7792
		set _num_ca15 2
		set _num_ca7 0
		set _boot_core CA15
	}
	M2N {
		set _CHIPNAME r8a7793
		set _num_ca15 2
		set _num_ca7 0
		set _boot_core CA15
	}
	E2 {
		set _CHIPNAME r8a7794
		set _num_ca15 0
		set _num_ca7 2
		set _boot_core CA7
	}
	default {
		error "'$_soc' is invalid!"
	}
}

# If configured, override the default 'CHIPNAME'
if { [info exists CHIPNAME] } {
	set _CHIPNAME $CHIPNAME
}

# If configured, override the default 'BOOT_CORE'
if { [info exists BOOT_CORE] } {
	set _boot_core $BOOT_CORE
}

if { [info exists DAP_TAPID] } {
	set _DAP_TAPID $DAP_TAPID
} else {
	set _DAP_TAPID 0x4ba00477
}

echo "\t$_soc - $_num_ca15 CA15(s), $_num_ca7 CA7(s)"
echo "\tBoot Core - $_boot_core\n"

set _DAPNAME $_CHIPNAME.dap

# TAP and DAP
jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x01 -irmask 0x0f -expected-id $_DAP_TAPID
dap create $_DAPNAME -chain-position $_CHIPNAME.cpu

set CA15_DBGBASE {0x800B0000 0x800B2000 0x800B4000 0x800B6000}
set CA7_DBGBASE  {0x800F0000 0x800F2000 0x800F4000 0x800F6000}

set _targets ""
set smp_targets ""

proc setup_ca {core_name dbgbase num boot} {
	global _CHIPNAME
	global _DAPNAME
	global smp_targets
	global _targets
	for { set _core 0 } { $_core < $num } { incr _core } {
		set _TARGETNAME $_CHIPNAME.$core_name.$_core
		set _CTINAME $_TARGETNAME.cti
		set _command "target create $_TARGETNAME cortex_a -dap $_DAPNAME \
			-coreid $_core -dbgbase [lindex $dbgbase $_core]"
		if { $_core == 0  && $boot == 1 } {
			set _targets "$_TARGETNAME"
		} else {
			set _command "$_command -defer-examine"
		}
		set smp_targets "$smp_targets $_TARGETNAME"
		eval $_command
	}
}

# Organize target list based on the boot core
if { [string equal $_boot_core CA15] } {
	setup_ca a15 $CA15_DBGBASE $_num_ca15 1
	setup_ca a7  $CA7_DBGBASE  $_num_ca7 0
} elseif { [string equal $_boot_core CA7] } {
	setup_ca a7  $CA7_DBGBASE  $_num_ca7 1
	setup_ca a15 $CA15_DBGBASE $_num_ca15 0
} else {
	setup_ca a15 $CA15_DBGBASE $_num_ca15 0
	setup_ca a7  $CA7_DBGBASE  $_num_ca7 0
}

source [find target/renesas_rcar_reset_common.cfg]

eval "target smp $smp_targets"
targets $_targets
