天启android5.1系统无法在非1650批次号的rk3288w芯片上启动 _Android

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天启android5.1系统无法在非1650批次号的rk3288w芯片上启动

挂掉log，说明在rtc初始化后挂掉

[1.420240] ======== PULL WL_REG_ON(-1) HIGH! ======== [1.420246] [WLAN_RFKILL]: rockchip_wifi_power: 1 [1.420253] [WLAN_RFKILL]: rockchip_wifi_ref_voltage: 1 [1.420258] [WLAN_RFKILL]: rockchip_wifi_ref_voltage: wifi io reference voltage control is disabled. [1.420759] android_usb gadget: Mass Storage Function, version: 2009/09/11 [1.420768] android_usb gadget: Number of LUNs=2 [1.420776]lun0: LUN: removable file: (no medium) [1.420782]lun1: LUN: removable file: (no medium) [1.420924] android_usb gadget: android_usb ready [1.420991] sensor_init: Probe name sensors [1.421006] sensor-dev.c v1.4 add angle calculation support between two gsensors 2013-09-01 [1.421532] rtc_hym8563 0-0051: setting system clock to 2011-01-01 12:00:00 UTC (1293883200) [1.430593] u?

开发板正常log，说明在snd-usb-audio初始化前挂掉

[2.456978] sensor_init: Probe name sensors [2.456995] sensor-dev.c v1.4 add angle calculation support between two gsensors 2013-09-01 [2.457525] rtc_hym8563 0-0051: setting system clock to 2011-01-01 12:14:58 UTC (1293884098) [2.463556] rockchip-spdif-card rockchip-spdif-card.25:rk-hdmi-spdif-hifi < -> ff880000.rockchip-spdif mapping ok [2.464517] ret 1024 [2.464896] usbcore: registered new interface driver snd-usb-audio [2.464903] ALSA device list: [2.464908]#0: RK_ES8323 [2.464912]#1: RK-SPDIF-CARD

system.map
kernel 部分驱动启动顺序映射表

c0c11154 t __initcall_init7 c0c11158 t __initcall_sensor_init7 c0c1115c t __initcall_rtc_hctosys7 c0c11160 t __initcall_sync_debugfs_init7 c0c11164 t __initcall_clk_debug_init7 c0c11168 t __initcall_rockchip_headset_init7 c0c1116c t __initcall_rockchip_spdif_init7 c0c11170 t __initcall_tcp_congestion_default7 c0c11174 t __initcall_tcp_fastopen_init7 c0c11178 t __initcall_ip_auto_config7 c0c1117c t __initcall_drm_misc_init7s c0c11180 t __initcall_clk_disable_unused7s c0c11184 t __initcall_snd_usb_audio_init7s c0c11188 t __initcall_alsa_sound_last_init7s c0c1118c t __initcall_initialize_hashrnd7s c0c11190 T __con_initcall_end c0c11190 T __con_initcall_start c0c11190 T __initcall_end c0c11190 t __initcall_selinux_init

在rtc_hctosys与snd_usb_audio启动之间有以下驱动程序初始化

c0c11160 t __initcall_sync_debugfs_init7 c0c11164 t __initcall_clk_debug_init7 c0c11168 t __initcall_rockchip_headset_init7 c0c1116c t __initcall_rockchip_spdif_init7 c0c11170 t __initcall_tcp_congestion_default7 c0c11174 t __initcall_tcp_fastopen_init7 c0c11178 t __initcall_ip_auto_config7 c0c1117c t __initcall_drm_misc_init7s c0c11180 t __initcall_clk_disable_unused7s

在这些驱动函数初始化中加入log调试
挂掉log：

[3.037934] sensor_init: Probe name sensors [3.037949] sensor-dev.c v1.4 add angle calculation support between two gsensors 2013-09-01 [3.038475] rtc_hym8563 0-0051: setting system clock to 2018-09-14 17:07:26 UTC (1536944846) [3.044644] rockchip-spdif-card rockchip-spdif-card.25:rk-hdmi-spdif-hifi < -> ff880000.rockchip-spdif mapping ok [3.044959] carroll : tcp_fastopen_init [3.044987] carroll : ip_auto_config u?

正常启动log为：

[2.456978] sensor_init: Probe name sensors [2.456995] sensor-dev.c v1.4 add angle calculation support between two gsensors 2013-09-01 [2.457525] rtc_hym8563 0-0051: setting system clock to 2011-01-01 12:14:58 UTC (1293884098) [2.463556] rockchip-spdif-card rockchip-spdif-card.25:rk-hdmi-spdif-hifi < -> ff880000.rockchip-spdif mapping ok [2.463889] carroll : tcp_fastopen_init [2.463917] carroll : ip_auto_config [2.464517] ret 1024 [2.464588] carroll : clk_disable_unused [2.464896] usbcore: registered new interface driver snd-usb-audio [2.464903] ALSA device list: [2.464908]#0: RK_ES8323 [2.464912]#1: RK-SPDIF-CARD

对比上述驱动初始化顺序表发现只剩下一个驱动初始化的嫌疑
c0c1117c t __initcall_drm_misc_init7s

查找drm_misc_init在整个SDK中 grep drm_misc_init -r firefly-rk3288_android5.1_git_20180126/*

firefly-rk3288_android5.1_git_20180126/android.iws:< find> drm_misc_init< /find> Binary file firefly-rk3288_android5.1_git_20180126/kernel/.tmp_vmlinux2 matches Binary file firefly-rk3288_android5.1_git_20180126/kernel/vmlinux matches firefly-rk3288_android5.1_git_20180126/kernel/System.map:c0be3a14 t drm_misc_init firefly-rk3288_android5.1_git_20180126/kernel/System.map:c0c1111c t __initcall_drm_misc_init7s Binary file firefly-rk3288_android5.1_git_20180126/kernel/pie/pie_stage1.o matches Binary file firefly-rk3288_android5.1_git_20180126/kernel/pie/pie_stage2.o matches firefly-rk3288_android5.1_git_20180126/kernel/.tmp_System.map:c0be3a14 t drm_misc_init firefly-rk3288_android5.1_git_20180126/kernel/.tmp_System.map:c0c1111c t __initcall_drm_misc_init7s Binary file firefly-rk3288_android5.1_git_20180126/kernel/vmlinux.o matches Binary file firefly-rk3288_android5.1_git_20180126/kernel/drivers/char/virtd matches Binary file firefly-rk3288_android5.1_git_20180126/kernel/drivers/char/built-in.o matches Binary file firefly-rk3288_android5.1_git_20180126/kernel/drivers/char/virtdrm.o matches Binary file firefly-rk3288_android5.1_git_20180126/kernel/drivers/built-in.o matches

发现并没有drm_misc_init的函数，到此嫌疑只能推给这几个文件了

Binary file firefly-rk3288_android5.1_git_20180126/kernel/.tmp_vmlinux2 matches Binary file firefly-rk3288_android5.1_git_20180126/kernel/vmlinux matches Binary file firefly-rk3288_android5.1_git_20180126/kernel/pie/pie_stage1.o matches Binary file firefly-rk3288_android5.1_git_20180126/kernel/pie/pie_stage2.o matches Binary file firefly-rk3288_android5.1_git_20180126/kernel/vmlinux.o matches Binary file firefly-rk3288_android5.1_git_20180126/kernel/drivers/char/virtd matches Binary file firefly-rk3288_android5.1_git_20180126/kernel/drivers/char/built-in.o matches Binary file firefly-rk3288_android5.1_git_20180126/kernel/drivers/char/virtdrm.o matches Binary file firefly-rk3288_android5.1_git_20180126/kernel/drivers/built-in.o matches

根据名字可能再筛选出以下三个

Binary file firefly-rk3288_android5.1_git_20180126/kernel/drivers/char/virtd matches Binary file firefly-rk3288_android5.1_git_20180126/kernel/drivers/char/virtdrm.o matches Binary file firefly-rk3288_android5.1_git_20180126/kernel/drivers/char/built-in.o matches

可能是这两个的原因

Binary file firefly-rk3288_android5.1_git_20180126/kernel/drivers/char/virtd matches Binary file firefly-rk3288_android5.1_git_20180126/kernel/drivers/char/virtdrm.o matches

调试发现firefly-rk3288_android5.1_git_20180126/kernel/drivers/char/目录下的Makefile发现
删除此驱动模块编译注册 obj-y += virtdrm.o
产生编译错误

OBJCOPY pie/pie.bin OBJCOPY pie/pie.bin.o LDpie/built-in.o GEN.version CHKinclude/generated/compile.h UPDinclude/generated/compile.h CCinit/version.o LDinit/built-in.o drivers/built-in.o: In function `mmc_blk_shutdown‘: binder.c:(.text+0x338e90): undefined reference to `mmc_blk_emmc_remove‘ drivers/built-in.o: In function `mmc_blk_probe‘: binder.c:(.text+0x33ae28): undefined reference to `mmc_blk_emmc_add‘ drivers/built-in.o: In function `mmc_blk_remove‘: binder.c:(.text+0x33b270): undefined reference to `mmc_blk_emmc_remove‘ make: *** [vmlinux] Error 1 /work/rk3288/firefly-rk3288_android5.1_git_20180126 TARGET_PRODUCT=rk3288_box TARGET_HARDWARE=rk30board IMG_TARGET=all , ota = withoutkernel system filesysystem is ext4

然后分别屏蔽代码调用

编译成功并且跳过之前挂掉的地方，但是在内核启动完成后挂了 log

[2.446169] sensor_init: Probe name sensors [2.446183] sensor-dev.c v1.4 add angle calculation support between two gsensors 2013-09-01 [2.446709] rtc_hym8563 0-0051: setting system clock to 2011-01-01 13:52:53 UTC (1293889973) [2.452731] rockchip-spdif-card rockchip-spdif-card.25:rk-hdmi-spdif-hifi < -> ff880000.rockchip-spdif mapping ok [2.453062] carroll : tcp_fastopen_init [2.453091] carroll : ip_auto_config [2.453108] carroll : clk_disable_unused [2.453418] usbcore: registered new interface driver snd-usb-audio [2.453426] ALSA device list: [2.453430]#0: RK_ES8323 [2.453435]#1: RK-SPDIF-CARD

分析原因屏蔽掉的源码为添加emmc设备，屏蔽后添加失败，文件系统初始化不成功

[1.650105] 1358..dw_mci_set_ios:no card. [mmc1] [1.662562] mmc0: BKOPS_EN bit is not set [1.664435] rk_sdmmc: BOOT Bus speed=0Hz,Bus width=8bits.[mmc0] [1.666717] mmc_host mmc0: Bus speed (slot 0) = 100000000Hz (slot req 100000000Hz, actual 100000000HZ div = 0) [1.666742] rk_sdmmc: BOOT dw_mci_setup_bus: argue clk_mmc workaround out normal clock [mmc0] [1.666764] [mmc0] tuning regsbase addr 0x218. [1.667453] [mmc0] Data transmission error !!!!MINTSTS: [0x00000088] [1.667464] [mmc0] host was already tuning, Don‘t need to retry tune again ignore 0. [1.667492] dwmmc_rockchip ff0f0000.rksdmmc: Tuning error: cmd.error:0, data.error:-84 [1.667518] [mmc0] Data transmission error !!!!MINTSTS: [0x00000088] [1.667527] [mmc0] host was already tuning, Don‘t need to retry tune again ignore 0. [1.667554] dwmmc_rockchip ff0f0000.rksdmmc: Tuning error: cmd.error:-84, data.error:-115 [1.667580] [mmc0] Data transmission error !!!!MINTSTS: [0x00000088] [1.667589] [mmc0] host was already tuning, Don‘t need to retry tune again ignore 0. [1.667615] dwmmc_rockchip ff0f0000.rksdmmc: Tuning error: cmd.error:-84, data.error:-115 [1.667640] [mmc0] Data transmission error !!!!MINTSTS: [0x00000088] [1.667649] [mmc0] host was already tuning, Don‘t need to retry tune again ignore 0. [1.667676] dwmmc_rockchip ff0f0000.rksdmmc: Tuning error: cmd.error:0, data.error:-84 [1.667722] dwmmc_rockchip ff0f0000.rksdmmc: Good phase range 0-225 (21 len) [1.667733] dwmmc_rockchip ff0f0000.rksdmmc: Good phase range 282-282 (1 len) [1.667744] dwmmc_rockchip ff0f0000.rksdmmc: Best phase range 0-225 (21 len) [1.667754] dwmmc_rockchip ff0f0000.rksdmmc: Successfully tuned phase to 113 [1.667796] mmc0: new HS200 MMC card at address 0001 [1.668069] mmcblk0: mmc0:0001 AJNB4R 14.5 GiB [1.668202] mmcblk0rpmb: mmc0:0001 AJNB4R partition 3 4.00 MiB [1.668519]uboot: 0x000400000 -- 0x000800000 (4 MB) [1.668530]misc: 0x000800000 -- 0x000c00000 (4 MB) [1.668539]resource: 0x000c00000 -- 0x001c00000 (16 MB) [1.668548]kernel: 0x001c00000 -- 0x002c00000 (16 MB) [1.668557]boot: 0x002c00000 -- 0x004c00000 (32 MB) [1.668566]recovery: 0x004c00000 -- 0x006c00000 (32 MB) [1.668574]backup: 0x006c00000 -- 0x00a000000 (52 MB) [1.668583]cache: 0x00a000000 -- 0x012000000 (128 MB) [1.668591]kpanic: 0x012000000 -- 0x012400000 (4 MB) [1.668599]system: 0x012400000 -- 0x072400000 (1536 MB) [1.668608]metadata: 0x072400000 -- 0x073400000 (16 MB) [1.668616] baseparamer: 0x073400000 -- 0x073800000 (4 MB) [1.668625]userdata: 0x077800000 -- 0x3a3a00000 (12994 MB) [1.668653]mmcblk0: p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 p11 p12 p13[1.669832] dwmmc_rockchip ff0c0000.rksdmmc: DW MMC controller ao [1.669848] dwmmc_rockchip ff0c0000.rksdmmc: 1 slots initialized [1.670158] dw cru_regsbase addr 0x1d8. [1.670168] dw cru_reset_offset val 1. [1.670179] dwmmc_rockchip ff0d0000.rksdmmc: Version ID is 270a [1.670218] dwmmc_rockchip ff0d0000.rksdmmc: failed to get hpclk_mmc [1.670473] dwmmc_rockchip ff0d0000.rksdmmc: Using internal DMA controller. [1.670605] dw_mci_init_slot: fmin=200000, fmax=50000000 [mmc2] [1.670851] 1358..dw_mci_set_ios:no card. [mmc2] ------------------------------------------------------------------------------------------ [1.670945] carroll : mmc_blk_probe mmc_blk_emmc_add ------------------------------------------------------------------------------------------ [1.670992] 1358..dw_mci_set_ios:no card. [mmc1] [1.689476] 1358..dw_mci_set_ios:no card. [mmc2] [1.709161] 1358..dw_mci_set_ios:no card. [mmc2] [1.709185] dwmmc_rockchip ff0d0000.rksdmmc: DW MMC controller at irq 65, 32 bit host data width, 256 deep fifo [1.709198] dwmmc_rockchip ff0d0000.rksdmmc: 1 slots initialized

说明这里不能删除只能做修改兼容其他批次cpu

再次把问题锁定文件，下边几个文件好像是天启android5.1特供的，就是这个东西让内核挂掉的，天启android4.4以及荣品都能正常开机，并且源码中也无下属文件
firefly-rk3288_android5.1_git_20180126/kernel/drivers/char/virtdrm.o文件
firefly-rk3288_android5.1_git_20180126/kernel/drivers/char/virtd
firefly-rk3288_android5.1_git_20180126/kernel/drivers/char/virtdrm.mod.c
firefly-rk3288_android5.1_git_20180126/kernel/drivers/char/.virtdrm.o.cmd

天启2017年07-21添加kernel-> driver:fix queue file，才添加的这几个文件
https://bitbucket.org/T-Firefly/firenow-lollipop/commits/bd3833f7c215b3f907464866510412ae505d2e73

最终将问题锁定在编译产生的二进制文件firefly-rk3288_android5.1_git_20180126/kernel/drivers/char/virtd
下节尝试逆向分析
【天启android5.1系统无法在非1650批次号的rk3288w芯片上启动】