arm: kirkwood: Convert to DM Serial for various Kirkwood boards

For Kirkwood boards, it is necessary to have early malloc in DRAM area
when Driver Model for Serial is enabled. Please see Michael's patch here:
https://lore.kernel.org/u-boot/20220817193809.1059688-20-michael@walle.cc/

This patch enables the early malloc in DRAM for all Kirkwood boards.
Note that this will work for boards that have either non-DM serial
and DM_SERIAL. Also, add the CONFIG_KIRKWOOD_COMMON option to enable
DM_SERIAL as a common option for boards that have been tested.

Signed-off-by: Tony Dinh <mibodhi@gmail.com>

diff --git a/arch/arm/mach-kirkwood/Kconfig b/arch/arm/mach-kirkwood/Kconfig
index c8a193dd4cdf9fbd43fed3ff8985333d2dc88df6..45cc9326368cc381d42f4b4c0bb64e5482b79197 100644 (file)
--- a/arch/arm/mach-kirkwood/Kconfig
+++ b/arch/arm/mach-kirkwood/Kconfig
@@ -12,6 +12,19 @@ config KW88F6281
 config SHEEVA_88SV131
        bool
 
+config KIRKWOOD_COMMON
+       bool
+       select DM_SERIAL
+
+config HAS_CUSTOM_SYS_INIT_SP_ADDR
+        bool "Use a custom location for the initial stack pointer address"
+        default y
+
+config CUSTOM_SYS_INIT_SP_ADDR
+        hex "Static location for the initial stack pointer"
+        depends on HAS_CUSTOM_SYS_INIT_SP_ADDR
+        default 0x5ff000
+
 choice
        prompt "Marvell Kirkwood board select"
        optional
@@ -25,6 +38,7 @@ config TARGET_DREAMPLUG
        bool "DreamPlug Board"
        select KW88F6281
        select SHEEVA_88SV131
+       select KIRKWOOD_COMMON
 
 config TARGET_DS109
        bool "Synology DS109"
@@ -40,6 +54,7 @@ config TARGET_SHEEVAPLUG
        bool "SheevaPlug Board"
        select FEROCEON_88FR131
        select KW88F6281
+       select KIRKWOOD_COMMON
 
 config TARGET_LSXL
        bool "lsxl Board"
@@ -47,16 +62,19 @@ config TARGET_LSXL
        select KW88F6281
        select BOARD_EARLY_INIT_R
        select MISC_INIT_R
+       select KIRKWOOD_COMMON
 
 config TARGET_POGO_E02
        bool "pogo_e02 Board"
        select FEROCEON_88FR131
        select KW88F6281
+       select KIRKWOOD_COMMON
 
 config TARGET_POGO_V4
        bool "Pogoplug V4 Board"
        select FEROCEON_88FR131
        select KW88F6192
+       select KIRKWOOD_COMMON
 
 config TARGET_DNS325
        bool "dns325 Board"
@@ -67,6 +85,7 @@ config TARGET_ICONNECT
        bool "iconnect Board"
        select FEROCEON_88FR131
        select KW88F6281
+       select KIRKWOOD_COMMON
 
 config TARGET_KM_KIRKWOOD
        bool "KM Kirkwood Board"
@@ -92,11 +111,13 @@ config TARGET_DOCKSTAR
        bool "Dockstar Board"
        select FEROCEON_88FR131
        select KW88F6281
+       select KIRKWOOD_COMMON
 
 config TARGET_GOFLEXHOME
        bool "GoFlex Home Board"
        select FEROCEON_88FR131
        select KW88F6281
+       select KIRKWOOD_COMMON
 
 config TARGET_NAS220
        bool "BlackArmor NAS220"
@@ -107,6 +128,7 @@ config TARGET_NSA310S
        bool "Zyxel NSA310S"
        select FEROCEON_88FR131
        select KW88F6192
+       select KIRKWOOD_COMMON
 
 config TARGET_SBx81LIFKW
        bool "Allied Telesis SBx81GS24/SBx81GT40/SBx81XS6/SBx81XS16"