ipqsoc: Skip reset in crash dump path.

Skip reset in crash dump path which give access to user
to perform secure authentication.

in crash path,
	bootipq cmd only authenticate kernel/rootfs.
	booting to kernel is restircted.

Enable CONFIG_SKIP_RESET to skip reset in crashdump path.

Change-Id: I28fdd4dc6475d4d26b20a87aa039cef165db1375
Signed-off-by: Gurumoorthy Santhakumar <quic_gsanthak@quicinc.com>

arch/arm/cpu/armv7/qca/common/Kconfig

@@ -1,2 +1,6 @@
 config QCA_COMMON
 	bool "QCA Common IPs"
+
+config SKIP_RESET
+	bool "Skip reset after crash dump"
+	default n

arch/arm/include/asm/arch-qca-common/qca_common.h

@@ -109,6 +109,7 @@ void set_flash_secondary_type(qca_smem_flash_info_t *);
 void dump_func(unsigned int dump_level);
 int do_dumpqca_flash_data(const char *);
 int do_dumpqca_usb_data(unsigned int dump_level);
+void crashdump_exit(void);
 int apps_iscrashed(void);
 int ipq_read_tcsr_boot_misc(void);
 int set_uuid_bootargs(char *boot_args, char *part_name, int buflen, bool gpt_flag);

board/qca/arm/common/cmd_bootqca.c

@@ -757,6 +757,12 @@ static int do_boot_signedimg(cmd_tbl_t *cmdtp, int flag, int argc, char *const a
 		}
 #endif
 	}
+
+#ifdef CONFIG_SKIP_RESET
+	if (apps_iscrashed())
+		return 1;
+#endif
+
 	/*
 	* This sys call will switch the CE1 channel to ADM usage
 	* so that HLOS can use it.
@@ -940,6 +946,11 @@ static int do_boot_unsignedimg(cmd_tbl_t *cmdtp, int flag, int argc, char *const
 		}
 	}
 
+#ifdef CONFIG_SKIP_RESET
+	if (apps_iscrashed())
+		return 1;
+#endif
+
 	if (ret < 0 || boot_os(1, arg) != CMD_RET_SUCCESS) {
 #ifdef CONFIG_USB_XHCI_IPQ
 		ipq_board_usb_init();

board/qca/arm/common/crashdump.c

@@ -179,6 +179,15 @@ __weak int scm_set_boot_addr(bool enable_sec_core)
 	return -1;
 }
 
+__weak void crashdump_exit(void)
+{
+#ifdef CONFIG_SKIP_RESET
+	run_command("bootipq", 0);
+#else
+	reset_board();
+#endif
+}
+
 static int krait_release_secondary(void)
 {
 	writel(0xa4, CPU1_APCS_SAW2_VCTL);
@@ -971,7 +980,7 @@ void dump_func(unsigned int dump_level)
 			printf("Using serverip from env %s\n", serverip);
 		} else {
 			printf("\nServer ip not found, run dhcp or configure\n");
-			goto reset;
+			goto exit;
 		}
 		printf("Trying to ping server.....\n");
 		snprintf(runcmd, sizeof(runcmd), "ping %s", serverip);
@@ -985,11 +994,11 @@ void dump_func(unsigned int dump_level)
 		}
 		if (ping_status != 1) {
 			printf("Ping failed\n");
-			goto reset;
+			goto exit;
 		}
 		if (do_dumpqca_data(dump_level) == CMD_RET_FAILURE)
 			printf("Crashdump saving failed!\n");
-		goto reset;
+		goto exit;
 	} else {
 		etime = get_timer_masked() + (10 * CONFIG_SYS_HZ);
 		printf("\nHit any key within 10s to stop dump activity...");
@@ -1012,8 +1021,8 @@ void dump_func(unsigned int dump_level)
 	/* reset the system, some images might not be loaded
 	 * when crashmagic is found
 	 */
-reset:
+exit:
-	reset_board();
+	crashdump_exit();
 }
 #ifdef CONFIG_MTD_DEVICE
 

common/autoboot.c

@@ -386,13 +386,13 @@ void autoboot_command(const char *s)
 			if (s) {
 				if (strncmp(s, "1", sizeof("1"))) {
 					printf("\nError: Invalid variable dump_minimal \n");
-					reset_board();
+					crashdump_exit();
 				}
 			}
 		}
 		if (s) {
 			do_dumpqca_minimal_data(s);
-			reset_board();
+			crashdump_exit();
 		}
 		else
 			dump_func(FULL_DUMP);