From 667afb3b91703dafd40acbcfd776c4b850e6925a Mon Sep 17 00:00:00 2001
From: Satoshi Togawa <s.togawa@centurysys.co.jp>
Date: Thu, 23 Jun 2022 16:51:01 +0900
Subject: [PATCH] sama5: add config SAMA5_SYSTEMRESET in arch/arm/src/Kconfig
 SAMA5D2 and SAMA5D4 does not support external reset. Some SAMA5 board's
 Kconfig contain item SAMA5_SYSTEMRESET, but it is better in
 arch/arm/src/Kconfig.

---
 arch/arm/src/sama5/Kconfig            | 27 +++++++++++++++++++++++++++
 boards/arm/sama5/giant-board/Kconfig  |  4 ----
 boards/arm/sama5/sama5d2-xult/Kconfig |  4 ----
 3 files changed, 27 insertions(+), 8 deletions(-)

diff --git a/arch/arm/src/sama5/Kconfig b/arch/arm/src/sama5/Kconfig
index b5d583652a..0b27615e94 100644
--- a/arch/arm/src/sama5/Kconfig
+++ b/arch/arm/src/sama5/Kconfig
@@ -169,6 +169,10 @@ config SAMA5_HAVE_VDEC
 	bool
 	default n
 
+config SAMA5_HAVE_RSTC_EXTRST
+	bool
+	default n
+
 # Summary configurations
 
 config SAMA5_FLEXCOM
@@ -228,6 +232,7 @@ config ARCH_CHIP_SAMA5D3
 	select SAMA5_HAVE_USART1
 	select SAMA5_HAVE_USART2
 	select SAMA5_HAVE_USART3
+	select SAMA5_HAVE_RSTC_EXTRST
 
 config ARCH_CHIP_SAMA5D4
 	bool
@@ -756,6 +761,28 @@ config SAMA5_VDEC
 
 endmenu # SAMA5 Peripheral Support
 
+config SAMA5_SYSTEMRESET
+	bool "Enable System Reset"
+	select ARCH_HAVE_RESET
+	---help---
+		Enable up_systemreset
+
+if SAMA5_SYSTEMRESET && SAMA5_HAVE_RSTC_EXTRST
+
+config SAMA5_EXTRESET_ERST
+	int "Drive External nRST duration"
+	default 0
+	range 0 16
+	---help---
+		Define if the external reset (nRST) will be generated in up_systemreset
+		and for how long:
+
+		- A value of 0 will not drive the external reset
+		- A value of 1-16 will drive the external reset for 2^SAMA5_EXTRESET_ERST
+		  slow clock cycles.
+
+endif # SAMA5_SYSTEMRESET
+
 config SAMA5_PIO_IRQ
 	bool "PIO pin interrupts"
 	---help---
diff --git a/boards/arm/sama5/giant-board/Kconfig b/boards/arm/sama5/giant-board/Kconfig
index 14e2481867..abd800b259 100644
--- a/boards/arm/sama5/giant-board/Kconfig
+++ b/boards/arm/sama5/giant-board/Kconfig
@@ -119,8 +119,4 @@ config SAMA5_SDMMC1_WIDTH_D1_D4
 	default y
 	depends on SAMA5_SDMMC1
 
-config SAMA5_SYSTEMRESET
-	bool "Enable system reset - this will enable the nsh reboot command"
-	select BOARDCTL_RESET
-
 endif # ARCH_BOARD_GIANT_BOARD
diff --git a/boards/arm/sama5/sama5d2-xult/Kconfig b/boards/arm/sama5/sama5d2-xult/Kconfig
index 4ee94b80b8..dbe2c5e475 100644
--- a/boards/arm/sama5/sama5d2-xult/Kconfig
+++ b/boards/arm/sama5/sama5d2-xult/Kconfig
@@ -127,8 +127,4 @@ config SAMA5_SDMMC1_WIDTH_D1_D4
 	default y
 	depends on SAMA5_SDMMC1
 
-config SAMA5_SYSTEMRESET
-	bool "Enable system reset - this will enable the nsh reboot command"
-	select BOARDCTL_RESET
-
 endif # ARCH_BOARD_SAMA5D2_XULT