meta-bletchley: add 99-platform-init
Add 99-platform-init to archive following items
1. Disable FMC_WDT2
AST2600 use FMC_WDT2 to archive ABR feature.
Disable FMC_WDT2 before systemd start.
2. Detect boot flash source
Write boot source into /run/media/slot
0: boot from primary
1: boot from alternate
Tested result:
- In u-boot, FMC_WDT2 is enabled and timer is counting down
```
U-Boot 2019.04 (Nov 10 2022 - 00:12:58 +0000)
SOC: AST2620-A3
RST: WDT1 SOC
PCI RST: #2
RST: External
FMC 2nd Boot (ABR): Enable, Dual flashes, Source: Primary
Set FMC_WDT2 timer reload value to 0x0BB8
eSPI Mode: SIO:Enable : SuperIO-2e
Eth: MAC0: RMII/NCSI, MAC1: RMII/NCSI, MAC2: RGMII, MAC3: RMII/NCSI
Model: Facebook Bletchley BMC
DRAM: already initialized, 2 GiB (capacity:2048 MiB, VGA:0 MiB, ECC:off)
MMC:
Loading Environment from SPI Flash... SF: Detected w25q01jv with page size 256 Bytes, erase size 4 KiB, total 128 MiB
*** Warning - bad CRC, using default environment
In: serial@1e784000
Out: serial@1e784000
Err: serial@1e784000
Model: Facebook Bletchley BMC
Net: Could not get PHY for eth2: addr 0
Failed to initialize PHY: -19
eth-1: ftgmac@1e670000
Hit any key to stop autoboot: 0
ast# md.l 0x1e620064 2
1e620064: 00000001 0b560bb8 ......V.
```
- After BMC boot into Linux OS, FMC_WDT2 is disabled
```
bletchley login: root
Password:
root@bletchley:~# devmem 0x1e620064
0x00000000
root@bletchley:~# devmem 0x1e620068
0x0BB80BB8
```
- check boot source (primary)
```
root@bletchley:~# cat /run/media/slot
0
```
Signed-off-by: Potin Lai <potin.lai@quantatw.com>
Change-Id: If5e41dd9745ba5c4ec45637772136e847954c56e
diff --git a/meta-facebook/meta-bletchley/recipes-phosphor/initrdscripts/phosphor-static-norootfs-init.bbappend b/meta-facebook/meta-bletchley/recipes-phosphor/initrdscripts/phosphor-static-norootfs-init.bbappend
new file mode 100644
index 0000000..a718b14
--- /dev/null
+++ b/meta-facebook/meta-bletchley/recipes-phosphor/initrdscripts/phosphor-static-norootfs-init.bbappend
@@ -0,0 +1,2 @@
+FILESEXTRAPATHS:append := ":${THISDIR}/${PN}"
+SOURCE_FILES:append = " 99-platform-init"
\ No newline at end of file
diff --git a/meta-facebook/meta-bletchley/recipes-phosphor/initrdscripts/phosphor-static-norootfs-init/99-platform-init b/meta-facebook/meta-bletchley/recipes-phosphor/initrdscripts/phosphor-static-norootfs-init/99-platform-init
new file mode 100644
index 0000000..d9def86
--- /dev/null
+++ b/meta-facebook/meta-bletchley/recipes-phosphor/initrdscripts/phosphor-static-norootfs-init/99-platform-init
@@ -0,0 +1,23 @@
+#bin/sh
+
+# Create /dev/mem
+if [ ! -c /dev/mem ]; then
+ /bin/mknod /dev/mem c 1 1
+fi
+
+# Disable FMC_WDT2
+FMC_WDT2_CTRL_VAL=$(/sbin/devmem 0x1e620064)
+FMC_WDT2_CTRL_VAL=$((16#${FMC_WDT2_CTRL_VAL#"0x"}))
+SET_VAL=$((FMC_WDT2_CTRL_VAL & 0xFFFFFFFE))
+/sbin/devmem 0x1e620064 32 "$SET_VAL"
+
+# Detect boot flash source
+SLOT_FILE="/run/media/slot"
+mkdir -p "$(dirname "${SLOT_FILE}")"
+if [ "$((FMC_WDT2_CTRL_VAL & 0x00000010))" != "0" ]; then
+ echo "1" > "$SLOT_FILE"
+else
+ echo "0" > "$SLOT_FILE"
+fi
+
+exit 0