[RK3288] [Android6.0] Debug Notes---System recognizes different hardware versions method "Go"

This article was reproduced from: http://m.blog.csdn.net/kris_fei/article/details/70226451

Platform:rockchip
Os:android 6.0
kernel:3.10.92

Demand:
The hardware version is different, by the high and low levels of a few gpio to represent the various versions,
U-boot/kernel/hal/framework/app layer needs to be used, then
It can be implemented using the system's own parameter passing mechanism and the property API.

Take a gpio as an example.
Changes:
U-boot
Diff--git A/board/rockchip/rk32xx/rk32xx.c B/board/rockchip/rk32xx/rk32xx.c
Index f043f77: e9a7466 100644
---a/board/rockchip/rk32xx/rk32xx.c
+ + B/BOARD/ROCKCHIP/RK32XX/RK32XX.C
@@ -164,6 +164,12 @@ -164,6 void board_init_adjust_env (void)
}
}
Macro Definition Package up
+/*kris,161219, HW version verify. {*/
+ #ifdef Config_eco_hw_rev
+u8 Eco_hw_rev = 0;
+ #endif
+/*kris,161219, HW version verify. }*/
+
#ifdef Config_board_late_init
extern Char bootloader_ver[24];
int board_late_init (void)
@@ -182,6 +188,15 @@ -182,6 board_late_init (void)
Key_init ();
#endif

+/*kris,161219, HW version verify. {*/
+ #ifdef Config_eco_hw_rev
+ #define GPIO_ECO_HW_REV (Gpio_bank8 | GPIO_A7)
Get GPIO Status
+ gpio_direction_input (Gpio_eco_hw_rev);
+ Eco_hw_rev = Gpio_get_value (Gpio_eco_hw_rev);
+ printf ("HW board check version:%d\n", Gpio_get_value (Gpio_eco_hw_rev));
+ #endif
+/*kris,161219, HW version verify. }*/
+
#ifdef Config_rk_power
Debug ("pmic_init\n");
Pmic_init (0);
Diff--git A/common/cmd_bootrk.c B/common/cmd_bootrk.c
Index 17ad496: 9f101c6 100755
---a/common/cmd_bootrk.c
+ + B/COMMON/CMD_BOOTRK.C
@@ -42,6 +42,14 @@ -42,6 int do_bootm_linux (int flag, int argc, char *argv[],
#if defined (config_power_rk818)
extern bool Is_rk81x_fg_init (void);
#endif
+
+/*kris,161219, HW version verify. {*/
+ #ifdef Config_eco_hw_rev
+extern U8 Eco_hw_rev;
+ #endif
+/*kris,161219, HW version verify. }*/
+
+
extern int Rkimage_load_image (RK_BOOT_IMG_HDR *hdr,
Const disk_partition_t *BOOT_PTN, const disk_partition_t *KERNEL_PTN);

@@ -486,6 +494,13 @@ -486,6 void rk_commandline_setenv (const char *boot_name, RK_BOOT_IMG_HDR *hdr, b
"%s adc.incre=%d", Command_line, g_increment);
#endif

+/*kris,161219, HW version verify. {*/
+ #ifdef Config_eco_hw_rev
The CmdLine parameter transfer mechanism of U-boot to kernel is used to transmit to kernel.
+snprintf (command_line, sizeof (command_line),
+ "%s androidboot.eco_hw_rev=%s", Command_line, Eco_hw_rev? " Primary ":" secondary ");
+ #endif
+/*kris,161219, HW version verify. }*/
+
Char *sn = getenv ("fbt_sn#");
if (sn! = NULL) {
/* Append serial number if it wasn ' t in device_info already */
Diff--git A/include/configs/rk32plat.h B/include/configs/rk32plat.h
Index f80799f: EC5E41D 100755
---a/include/configs/rk32plat.h
+ + B/include/configs/rk32plat.h
@@ -224,4 +224,8 @@

#endif/* Config_rk_power */

+
+/*kris,161219, HW version verify.*/
+ #define Config_eco_hw_rev
+
#endif/* __rk32plat_config_h */

Kernel:
Diff--git A/arch/arm/mach-rockchip/common.c B/arch/arm/mach-rockchip/common.c
Index E80880E: 107b58c 100755
---a/arch/arm/mach-rockchip/common.c
+ + B/ARCH/ARM/MACH-ROCKCHIP/COMMON.C
@@ -340,6 +340,21 @@ -340,6 int __init rockchip_uboot_logo_setup (char *p)
}
Early_param ("Uboot_logo", Rockchip_uboot_logo_setup);

+/*kris, 20161219, add check HW Rev interface. {*/
Kernel can be used to judge the Eco_hw_rev.
+int Eco_hw_rev;
+static int __init Early_eco_hw_rev (char *p)
+{
+ get_option (&p, &eco_hw_rev);
+ if (!strncmp (p, "Primary", 7))
+ Eco_hw_rev = 1;
+ Else if (!strncmp (p, "secondary", 9))
+ Eco_hw_rev = 0;
+ PRINTK ("androidboot.eco_hw_rev:%s\n", p);
+ return 0;
+}
+early_param ("Androidboot.eco_hw_rev", Early_eco_hw_rev);
+/*kris, 20161219, add check HW Rev interface. }*/
+

Userspace:
Notice that the CmdLine parameter is Androidboot.eco_hw_rev, and the CmdLine parameter that starts with Androidboot is parsed in the init process.
Refer to: http://blog.csdn.net/kris_fei/article/details/50925356
The property is eventually generated in the RO.BOOT.XXX format. In Hal, Natvie, the app layer has a corresponding API to parse the property so that the entire system can be used.

[RK3288] [Android6.0] Debug Notes---System recognizes different hardware versions method "Go"