bootstash: Do not provide a default address for all

A valid memory location to stash bootstage information at will be
architecture dependent. Move the existing defaults to the main Kconfig
file for this option and set 0x0 as the default only for sandbox.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>

arch/arm/mach-rockchip/tpl.c

@@ -92,15 +92,13 @@ void board_init_f(ulong dummy)
 int board_return_to_bootrom(struct spl_image_info *spl_image,
 			    struct spl_boot_device *bootdev)
 {
-#ifdef CONFIG_BOOTSTAGE_STASH
 	int ret;
 
 	bootstage_mark_name(BOOTSTAGE_ID_END_TPL, "end tpl");
-	ret = bootstage_stash((void *)CONFIG_BOOTSTAGE_STASH_ADDR,
-			      CONFIG_BOOTSTAGE_STASH_SIZE);
+	ret = bootstage_stash_default();
 	if (ret)
 		debug("Failed to stash bootstage: err=%d\n", ret);
-#endif
+
 	back_to_bootrom(BROM_BOOT_NEXTSTAGE);
 
 	return 0;

arch/arm/mach-stm32mp/Kconfig.13x

@@ -28,9 +28,6 @@ config PRE_CON_BUF_ADDR
 config PRE_CON_BUF_SZ
 	default 4096
 
-config BOOTSTAGE_STASH_ADDR
-	default 0xC3000000
-
 if BOOTCOUNT_GENERIC
 config SYS_BOOTCOUNT_SINGLEWORD
 	default y

arch/arm/mach-stm32mp/Kconfig.15x

@@ -86,9 +86,6 @@ config PRE_CON_BUF_ADDR
 config PRE_CON_BUF_SZ
 	default 4096
 
-config BOOTSTAGE_STASH_ADDR
-	default 0xC3000000
-
 if BOOTCOUNT_GENERIC
 config SYS_BOOTCOUNT_SINGLEWORD
 	default y

arch/arm/mach-stm32mp/Kconfig.25x

@@ -24,9 +24,6 @@ config PRE_CON_BUF_ADDR
 config PRE_CON_BUF_SZ
 	default 4096
 
-config BOOTSTAGE_STASH_ADDR
-	default 0x87000000
-
 if DEBUG_UART
 
 config DEBUG_UART_BOARD_INIT

arch/x86/cpu/cpu.c

@@ -75,8 +75,7 @@ int __weak x86_cleanup_before_linux(void)
 	ret = mp_park_aps();
 	if (ret)
 		return log_msg_ret("park", ret);
-	bootstage_stash((void *)CONFIG_BOOTSTAGE_STASH_ADDR,
-			CONFIG_BOOTSTAGE_STASH_SIZE);
+	bootstage_stash_default();
 
 	return 0;
 }

boot/Kconfig

@@ -1019,13 +1019,17 @@ config BOOTSTAGE_STASH
 
 config BOOTSTAGE_STASH_ADDR
 	hex "Address to stash boot timing information"
-	default 0x0
+	depends on BOOTSTAGE_STASH
+	default 0xC3000000 if STM32MP13X || STM32MP15X
+	default 0x87000000 if STM32MP25X
+	default 0x0 if SANDBOX
 	help
 	  Provide an address which will not be overwritten by the OS when it
 	  starts, so that it can read this information when ready.
 
 config BOOTSTAGE_STASH_SIZE
 	hex "Size of boot timing stash region"
+	depends on BOOTSTAGE_STASH
 	default 0x1000
 	help
 	  This should be large enough to hold the bootstage stash. A value of

cmd/bootstage.c

@@ -15,6 +15,7 @@ static int do_bootstage_report(struct cmd_tbl *cmdtp, int flag, int argc,
 	return 0;
 }
 
+#if IS_ENABLED(CONFIG_BOOTSTAGE_STASH)
 static int get_base_size(int argc, char *const argv[], ulong *basep,
 			 ulong *sizep)
 {
@@ -58,11 +59,14 @@ static int do_bootstage_stash(struct cmd_tbl *cmdtp, int flag, int argc,
 
 	return 0;
 }
+#endif
 
 static struct cmd_tbl cmd_bootstage_sub[] = {
 	U_BOOT_CMD_MKENT(report, 2, 1, do_bootstage_report, "", ""),
+#if IS_ENABLED(CONFIG_BOOTSTAGE_STASH)
 	U_BOOT_CMD_MKENT(stash, 4, 0, do_bootstage_stash, "", ""),
 	U_BOOT_CMD_MKENT(unstash, 4, 0, do_bootstage_stash, "", ""),
+#endif
 };
 
 /*
@@ -90,6 +94,8 @@ U_BOOT_CMD(bootstage, 4, 1, do_boostage,
 	"Boot stage command",
 	" - check boot progress and timing\n"
 	"report                      - Print a report\n"
+#if IS_ENABLED(CONFIG_BOOTSTAGE_STASH)
 	"stash [<start> [<size>]]    - Stash data into memory\n"
-	"unstash [<start> [<size>]]  - Unstash data from memory"
+	"unstash [<start> [<size>]]  - Unstash data from memory\n"
+#endif
 );

common/board_f.c

@@ -810,10 +810,7 @@ static int initf_bootstage(void)
 	if (ret)
 		return ret;
 	if (from_spl) {
-		const void *stash = map_sysmem(CONFIG_BOOTSTAGE_STASH_ADDR,
-					       CONFIG_BOOTSTAGE_STASH_SIZE);
-
-		ret = bootstage_unstash(stash, CONFIG_BOOTSTAGE_STASH_SIZE);
+		ret = bootstage_stash_default();
 		if (ret && ret != -ENOENT) {
 			debug("Failed to unstash bootstage: err=%d\n", ret);
 			return ret;

common/bootstage.c

@@ -500,6 +500,7 @@ int bootstage_unstash(const void *base, int size)
 	return 0;
 }
 
+#if IS_ENABLED(CONFIG_BOOTSTAGE_STASH)
 int _bootstage_stash_default(void)
 {
 	return bootstage_stash(map_sysmem(CONFIG_BOOTSTAGE_STASH_ADDR, 0),
@@ -513,6 +514,7 @@ int _bootstage_unstash_default(void)
 
 	return bootstage_unstash(stash, CONFIG_BOOTSTAGE_STASH_SIZE);
 }
+#endif
 
 int bootstage_get_size(void)
 {