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uboot-mediaktek: add support for PSTORE and check it on boot

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Add support for pstore/ramoops now that DRAM content is preserved
over reboot on MT7622. On each boot, check pstore and boot to recovery
image in case there are records stored in it.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This commit is contained in:
Daniel Golle 2021-05-07 16:47:26 +01:00
parent c91c0c1f85
commit cc201759b6
No known key found for this signature in database
GPG Key ID: 5A8F39C31C3217CA
5 changed files with 131 additions and 15 deletions
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33
package/boot/uboot-mediatek/patches/050-mt7622-enable-pstore.patch Normal file
View File

@ -0,0 +1,33 @@
--- a/arch/arm/dts/mt7622.dtsi
+++ b/arch/arm/dts/mt7622.dtsi
@@ -37,6 +37,30 @@
};
};
+ psci {
+ compatible = "arm,psci-1.0";
+ method = "smc";
+ };
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ /* 64 KiB reserved for ramoops/pstore */
+ ramoops@0x42ff0000 {
+ compatible = "ramoops";
+ reg = <0 0x42ff0000 0 0x10000>;
+ record-size = <0x1000>;
+ };
+
+ /* 192 KiB reserved for ARM Trusted Firmware (BL31) */
+ secmon_reserved: secmon@43000000 {
+ reg = <0 0x43000000 0 0x30000>;
+ no-map;
+ };
+ };
+
snfi: snfi@1100d000 {
compatible = "mediatek,mtk-snfi-spi";
reg = <0x1100d000 0x2000>;

78
package/boot/uboot-mediatek/patches/230-cmd-add-pstore-check.patch Normal file
View File

@ -0,0 +1,78 @@
--- a/cmd/pstore.c
+++ b/cmd/pstore.c
@@ -207,6 +207,58 @@ static int pstore_set(struct cmd_tbl *cm
}
/**
+ * pstore_check() - Check for pstore records
+ * @cmdtp: Command data struct pointer
+ * @flag: Command flag
+ * @argc: Command-line argument count
+ * @argv: Array of command-line arguments
+ *
+ * Return: 0 if there are records in pstore, 1 otherwise
+ */
+static int pstore_check(struct cmd_tbl *cmdtp, int flag, int argc,
+ char * const argv[])
+{
+ phys_addr_t ptr;
+ char *buffer;
+ u32 size;
+ int header_len = 0;
+ bool compressed;
+
+ if (pstore_length == 0) {
+ printf("Please set PStore configuration\n");
+ return CMD_RET_USAGE;
+ }
+
+ if (buffer_size == 0)
+ pstore_init_buffer_size();
+
+ buffer = malloc_cache_aligned(buffer_size);
+
+ ptr = pstore_addr;
+ phys_addr_t ptr_end = ptr + pstore_length - pstore_pmsg_size
+ - pstore_ftrace_size - pstore_console_size;
+
+ while (ptr < ptr_end) {
+ size = pstore_get_buffer(PERSISTENT_RAM_SIG, ptr,
+ pstore_record_size, buffer);
+ ptr += pstore_record_size;
+
+ if (size == 0)
+ continue;
+
+ header_len = pstore_read_kmsg_hdr(buffer, &compressed);
+ if (header_len == 0)
+ continue;
+
+ free(buffer);
+ return 0;
+ }
+
+ free(buffer);
+ return 1;
+}
+
+/**
* pstore_print_buffer() - Print buffer
* @type: buffer type
* @buffer: buffer to print
@@ -458,6 +510,7 @@ static int pstore_save(struct cmd_tbl *c
static struct cmd_tbl cmd_pstore_sub[] = {
U_BOOT_CMD_MKENT(set, 8, 0, pstore_set, "", ""),
+ U_BOOT_CMD_MKENT(check, 1, 0, pstore_check, "", ""),
U_BOOT_CMD_MKENT(display, 3, 0, pstore_display, "", ""),
U_BOOT_CMD_MKENT(save, 4, 0, pstore_save, "", ""),
};
@@ -531,6 +584,8 @@ U_BOOT_CMD(pstore, 10, 0, do_pstore,
" 'pmsg-size' is the size of the user space logs record.\n"
" 'ecc-size' enables/disables ECC support and specifies ECC buffer size in\n"
" bytes (0 disables it, 1 is a special value, means 16 bytes ECC).\n"
+ "pstore check\n"
+ "- Returns true if there are records in pstore.\n"
"pstore display [record-type] [nb]\n"
"- Display existing records in pstore reserved memory. A 'record-type' can\n"
" be given to only display records of this kind. 'record-type' can be one\n"

21
package/boot/uboot-mediatek/patches/404-add-bananapi_bpi-r64_defconfigs.patch
View File

@ -1,6 +1,6 @@
--- /dev/null
+++ b/configs/mt7622_bananapi_bpi-r64-sdmmc_defconfig
@@ -0,0 +1,157 @@
@@ -0,0 +1,158 @@
+CONFIG_ARM=y
+CONFIG_POSITION_INDEPENDENT=y
+CONFIG_ARCH_MEDIATEK=y
@ -74,7 +74,8 @@
+CONFIG_CMD_UBIFS=y
+CONFIG_CMD_ASKENV=y
+CONFIG_CMD_PART=y
+# CONFIG_CMD_PSTORE is not set
+CONFIG_CMD_PSTORE=y
+CONFIG_CMD_PSTORE_MEM_ADDR=0x42ff0000
+CONFIG_CMD_RARP=y
+CONFIG_CMD_SETEXPR=y
+CONFIG_CMD_SLEEP=y
@ -165,7 +166,7 @@
+serverip=192.168.1.254
+loadaddr=0x4007ff28
+bootargs=root=/dev/mmcblk1p65
+bootcmd=run boot_sdmmc
+bootcmd=if pstore check ; then run boot_recovery ; else run boot_sdmmc ; fi
+bootconf=config-mt7622-bananapi-bpi-r64-pcie1
+bootconf_pcie=config-mt7622-bananapi-bpi-r64-pcie1
+bootconf_sata=config-mt7622-bananapi-bpi-r64-sata
@ -244,7 +245,7 @@
+_bootmenu_update_title=setenv _bootmenu_update_title ; setenv bootmenu_title "$bootmenu_title $ver"
--- /dev/null
+++ b/configs/mt7622_bananapi_bpi-r64-emmc_defconfig
@@ -0,0 +1,144 @@
@@ -0,0 +1,145 @@
+CONFIG_ARM=y
+CONFIG_POSITION_INDEPENDENT=y
+CONFIG_ARCH_MEDIATEK=y
@ -313,7 +314,8 @@
+CONFIG_CMD_TFTPSRV=y
+CONFIG_CMD_ASKENV=y
+CONFIG_CMD_PART=y
+# CONFIG_CMD_PSTORE is not set
+CONFIG_CMD_PSTORE=y
+CONFIG_CMD_PSTORE_MEM_ADDR=0x42ff0000
+CONFIG_CMD_RARP=y
+CONFIG_CMD_SETEXPR=y
+CONFIG_CMD_SLEEP=y
@ -395,7 +397,7 @@
+ipaddr=192.168.1.1
+serverip=192.168.1.254
+loadaddr=0x4007ff28
+bootcmd=run boot_emmc
+bootcmd=if pstore check ; then run boot_recovery ; else run boot_emmc ; fi
+bootargs=root=/dev/mmcblk0p65
+bootconf=config-mt7622-bananapi-bpi-r64-pcie1
+bootconf_pcie=config-mt7622-bananapi-bpi-r64-pcie1
@ -448,7 +450,7 @@
+_bootmenu_update_title=setenv _bootmenu_update_title ; setenv bootmenu_title "$bootmenu_title $ver"
--- /dev/null
+++ b/configs/mt7622_bananapi_bpi-r64-snand_defconfig
@@ -0,0 +1,138 @@
@@ -0,0 +1,139 @@
+CONFIG_ARM=y
+CONFIG_POSITION_INDEPENDENT=y
+CONFIG_ARCH_MEDIATEK=y
@ -519,7 +521,8 @@
+CONFIG_CMD_UBIFS=y
+CONFIG_CMD_ASKENV=y
+CONFIG_CMD_PART=y
+# CONFIG_CMD_PSTORE is not set
+CONFIG_CMD_PSTORE=y
+CONFIG_CMD_PSTORE_MEM_ADDR=0x42ff0000
+CONFIG_CMD_RARP=y
+CONFIG_CMD_SETEXPR=y
+CONFIG_CMD_SLEEP=y
@ -594,7 +597,7 @@
+serverip=192.168.1.254
+loadaddr=0x4007ff28
+bootargs=root=/dev/ubiblock0_2p1
+bootcmd=run boot_ubi
+bootcmd=if pstore check ; then run boot_recovery ; else run boot_ubi ; fi
+bootconf=config-mt7622-bananapi-bpi-r64-pcie1
+bootconf_pcie=config-mt7622-bananapi-bpi-r64-pcie1
+bootconf_sata=config-mt7622-bananapi-bpi-r64-sata

7
package/boot/uboot-mediatek/patches/410-add-linksys-e8450.patch
View File

@ -1,6 +1,6 @@
--- /dev/null
+++ b/configs/mt7622_linksys_e8450_defconfig
@@ -0,0 +1,133 @@
@@ -0,0 +1,134 @@
+CONFIG_ARM=y
+CONFIG_POSITION_INDEPENDENT=y
+CONFIG_ARCH_MEDIATEK=y
@ -69,7 +69,8 @@
+CONFIG_CMD_UBIFS=y
+CONFIG_CMD_ASKENV=y
+CONFIG_CMD_PART=y
+# CONFIG_CMD_PSTORE is not set
+CONFIG_CMD_PSTORE=y
+CONFIG_CMD_PSTORE_MEM_ADDR=0x42ff0000
+CONFIG_CMD_RARP=y
+CONFIG_CMD_SETEXPR=y
+CONFIG_CMD_SLEEP=y
@ -350,7 +351,7 @@
+ipaddr=192.168.1.1
+serverip=192.168.1.254
+loadaddr=0x4007ff28
+bootcmd=run boot_ubi
+bootcmd=if pstore check ; then run boot_recovery ; else run boot_ubi ; fi
+bootdelay=0
+bootfile=openwrt-mediatek-mt7622-linksys_e8450-ubi-initramfs-recovery.itb
+bootfile_bl2=openwrt-mediatek-mt7622-linksys_e8450-ubi-preloader.bin

7
package/boot/uboot-mediatek/patches/412-add-ubnt-unifi-6-lr.patch
View File

@ -1,6 +1,6 @@
--- /dev/null
+++ b/configs/mt7622_ubnt_unifi-6-lr_defconfig
@@ -0,0 +1,138 @@
@@ -0,0 +1,139 @@
+CONFIG_ARM=y
+CONFIG_POSITION_INDEPENDENT=y
+CONFIG_ARCH_MEDIATEK=y
@ -72,7 +72,8 @@
+CONFIG_CMD_TFTPSRV=y
+# CONFIG_CMD_UNLZ4 is not set
+CONFIG_CMD_ASKENV=y
+# CONFIG_CMD_PSTORE is not set
+CONFIG_CMD_PSTORE=y
+CONFIG_CMD_PSTORE_MEM_ADDR=0x42ff0000
+CONFIG_CMD_RARP=y
+CONFIG_CMD_SETEXPR=y
+CONFIG_CMD_SLEEP=y
@ -362,7 +363,7 @@
+ipaddr=192.168.1.1
+serverip=192.168.1.254
+loadaddr=0x40080000
+bootcmd=run boot_nor
+bootcmd=if pstore check ; then run boot_recovery ; else run boot_nor ; fi
+bootdelay=0
+bootfile=openwrt-mediatek-mt7622-ubnt_unifi-6-lr-ubootmod-initramfs-recovery.itb
+bootfile_bl2=openwrt-mediatek-mt7622-ubnt_unifi-6-lr-ubootmod-preloader.bin