Merge git://git.denx.de/u-boot-dm

11 files changed, 217 insertions, 3 deletions

diff --git a/arch/sandbox/Kconfig b/arch/sandbox/Kconfig
index a8a90cb7a4..d4c1ee0662 100644
--- a/arch/sandbox/Kconfig
+++ b/arch/sandbox/Kconfig
@@ -10,8 +10,13 @@ config SYS_BOARD
 config SYS_CPU
 	default "sandbox"
 
+config SANDBOX_SPL
+	bool "Enable SPL for sandbox"
+	select SUPPORT_SPL
+
 config SYS_CONFIG_NAME
-	default "sandbox"
+	default "sandbox_spl" if SANDBOX_SPL
+	default "sandbox" if !SANDBOX_SPL
 
 config PCI
 	bool "PCI support"
diff --git a/arch/sandbox/config.mk b/arch/sandbox/config.mk
index 16fd6d508a..6d62abb035 100644
--- a/arch/sandbox/config.mk
+++ b/arch/sandbox/config.mk
@@ -20,4 +20,9 @@ cmd_u-boot__ = $(CC) -o $@ -Wl,-T u-boot.lds \
 	-Wl,--start-group $(u-boot-main) -Wl,--end-group \
 	$(PLATFORM_LIBS) -Wl,-Map -Wl,u-boot.map
 
+cmd_u-boot-spl = (cd $(obj) && $(CC) -o $(SPL_BIN) -Wl,-T u-boot-spl.lds \
+	-Wl,--start-group $(patsubst $(obj)/%,%,$(u-boot-spl-main)) \
+	$(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) -Wl,--end-group \
+	$(PLATFORM_LIBS) -Wl,-Map -Wl,u-boot-spl.map -Wl,--gc-sections)
+
 CONFIG_ARCH_DEVICE_TREE := sandbox
diff --git a/arch/sandbox/cpu/Makefile b/arch/sandbox/cpu/Makefile
index 1b42fee141..db4363358a 100644
--- a/arch/sandbox/cpu/Makefile
+++ b/arch/sandbox/cpu/Makefile
@@ -8,6 +8,7 @@
 #
 
 obj-y	:= cpu.o os.o start.o state.o
+obj-$(CONFIG_SPL_BUILD)	+= spl.o
 obj-$(CONFIG_ETH_SANDBOX_RAW)	+= eth-raw-os.o
 obj-$(CONFIG_SANDBOX_SDL)	+= sdl.o
 
diff --git a/arch/sandbox/cpu/cpu.c b/arch/sandbox/cpu/cpu.c
index 196f3e1191..2def72212d 100644
--- a/arch/sandbox/cpu/cpu.c
+++ b/arch/sandbox/cpu/cpu.c
@@ -4,10 +4,12 @@
  */
 #define DEBUG
 #include <common.h>
-#include <dm/root.h>
+#include <errno.h>
+#include <libfdt.h>
 #include <os.h>
 #include <asm/io.h>
 #include <asm/state.h>
+#include <dm/root.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -55,7 +57,7 @@ int cleanup_before_linux_select(int flags)
 
 void *map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
 {
-#ifdef CONFIG_PCI
+#if defined(CONFIG_PCI) && !defined(CONFIG_SPL_BUILD)
 	unsigned long plen = len;
 	void *ptr;
 
diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c
index 8a4d719835..2d63dd88f1 100644
--- a/arch/sandbox/cpu/os.c
+++ b/arch/sandbox/cpu/os.c
@@ -541,6 +541,57 @@ int os_jump_to_image(const void *dest, int size)
 	return unlink(fname);
 }
 
+int os_find_u_boot(char *fname, int maxlen)
+{
+	struct sandbox_state *state = state_get_current();
+	const char *progname = state->argv[0];
+	int len = strlen(progname);
+	char *p;
+	int fd;
+
+	if (len >= maxlen || len < 4)
+		return -ENOSPC;
+
+	/* Look for 'u-boot' in the same directory as 'u-boot-spl' */
+	strcpy(fname, progname);
+	if (!strcmp(fname + len - 4, "-spl")) {
+		fname[len - 4] = '\0';
+		fd = os_open(fname, O_RDONLY);
+		if (fd >= 0) {
+			close(fd);
+			return 0;
+		}
+	}
+
+	/* Look for 'u-boot' in the parent directory of spl/ */
+	p = strstr(fname, "/spl/");
+	if (p) {
+		strcpy(p, p + 4);
+		fd = os_open(fname, O_RDONLY);
+		if (fd >= 0) {
+			close(fd);
+			return 0;
+		}
+	}
+
+	return -ENOENT;
+}
+
+int os_spl_to_uboot(const char *fname)
+{
+	struct sandbox_state *state = state_get_current();
+	char *argv[state->argc + 1];
+	int ret;
+
+	memcpy(argv, state->argv, sizeof(char *) * (state->argc + 1));
+	argv[0] = (char *)fname;
+	ret = execv(fname, argv);
+	if (ret)
+		return ret;
+
+	return unlink(fname);
+}
+
 void os_localtime(struct rtc_time *rt)
 {
 	time_t t = time(NULL);
diff --git a/arch/sandbox/cpu/spl.c b/arch/sandbox/cpu/spl.c
new file mode 100644
index 0000000000..e8349c0b93
--- /dev/null
+++ b/arch/sandbox/cpu/spl.c
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2016 Google, Inc
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <os.h>
+#include <spl.h>
+#include <asm/spl.h>
+#include <asm/state.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void board_init_f(ulong flag)
+{
+	struct sandbox_state *state = state_get_current();
+
+	gd->arch.ram_buf = state->ram_buf;
+	gd->ram_size = state->ram_size;
+}
+
+u32 spl_boot_device(void)
+{
+	return BOOT_DEVICE_BOARD;
+}
+
+void spl_board_announce_boot_device(void)
+{
+	char fname[256];
+	int ret;
+
+	ret = os_find_u_boot(fname, sizeof(fname));
+	if (ret) {
+		printf("(%s not found, error %d)\n", fname, ret);
+		return;
+	}
+	printf("%s\n", fname);
+}
+
+int spl_board_load_image(void)
+{
+	char fname[256];
+	int ret;
+
+	ret = os_find_u_boot(fname, sizeof(fname));
+	if (ret)
+		return ret;
+
+	/* Hopefully this will not return */
+	return os_spl_to_uboot(fname);
+}
+
+void spl_board_init(void)
+{
+	struct udevice *dev;
+
+	preloader_console_init();
+
+	/*
+	* Scan all the devices so that we can output their platform data. See
+	* sandbox_spl_probe().
+	*/
+	for (uclass_first_device(UCLASS_MISC, &dev);
+	dev;
+	uclass_next_device(&dev))
+		;
+}
diff --git a/arch/sandbox/cpu/start.c b/arch/sandbox/cpu/start.c
index 969618ef87..6e4ec017cc 100644
--- a/arch/sandbox/cpu/start.c
+++ b/arch/sandbox/cpu/start.c
@@ -73,6 +73,7 @@ static int sandbox_cmdline_cb_help(struct sandbox_state *state, const char *arg)
 }
 SANDBOX_CMDLINE_OPT_SHORT(help, 'h', 0, "Display help");
 
+#ifndef CONFIG_SPL_BUILD
 int sandbox_main_loop_init(void)
 {
 	struct sandbox_state *state = state_get_current();
@@ -97,6 +98,7 @@ int sandbox_main_loop_init(void)
 
 	return 0;
 }
+#endif
 
 static int sandbox_cmdline_cb_boot(struct sandbox_state *state,
 				      const char *arg)
diff --git a/arch/sandbox/cpu/u-boot-spl.lds b/arch/sandbox/cpu/u-boot-spl.lds
new file mode 100644
index 0000000000..7e92b4ac66
--- /dev/null
+++ b/arch/sandbox/cpu/u-boot-spl.lds
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2011-2012 The Chromium OS Authors.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+SECTIONS
+{
+
+	. = ALIGN(4);
+	.u_boot_list : {
+		KEEP(*(SORT(.u_boot_list*)));
+	}
+
+	__u_boot_sandbox_option_start = .;
+	_u_boot_sandbox_getopt : { *(.u_boot_sandbox_getopt) }
+	__u_boot_sandbox_option_end = .;
+
+	__bss_start = .;
+}
+
+INSERT BEFORE .data;
diff --git a/arch/sandbox/dts/sandbox.dts b/arch/sandbox/dts/sandbox.dts
index 2ae40148b0..e6d336f16a 100644
--- a/arch/sandbox/dts/sandbox.dts
+++ b/arch/sandbox/dts/sandbox.dts
@@ -172,6 +172,37 @@
 		};
 	};
 
+	spl-test {
+		u-boot,dm-pre-reloc;
+		compatible = "sandbox,spl-test";
+		boolval;
+		intval = <1>;
+		intarray = <2 3 4>;
+		byteval = [05];
+		bytearray = [06];
+		longbytearray = [09 0a 0b 0c 0d 0e 0f 10 11];
+		stringval = "message";
+		stringarray = "multi-word", "message";
+	};
+
+	spl-test2 {
+		u-boot,dm-pre-reloc;
+		compatible = "sandbox,spl-test";
+		intval = <3>;
+		intarray = <5>;
+		byteval = [08];
+		bytearray = [01 23 34];
+		longbytearray = [09 0a 0b 0c];
+		stringval = "message2";
+		stringarray = "another", "multi-word", "message";
+	};
+
+	spl-test3 {
+		u-boot,dm-pre-reloc;
+		compatible = "sandbox,spl-test";
+		stringarray = "one";
+	};
+
 	square {
 		compatible = "demo-shape";
 		colour = "blue";
diff --git a/arch/sandbox/include/asm/spl.h b/arch/sandbox/include/asm/spl.h
new file mode 100644
index 0000000000..59f2401170
--- /dev/null
+++ b/arch/sandbox/include/asm/spl.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2016 Google, Inc
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __asm_spl_h
+#define __asm_spl_h
+
+#define CONFIG_SPL_BOARD_LOAD_IMAGE
+
+/**
+ * Board-specific load method for boards that have a special way of loading
+ * U-Boot, which does not fit with the existing SPL code.
+ *
+ * @return 0 on success, negative errno value on failure.
+ */
+int spl_board_load_image(void);
+
+enum {
+	BOOT_DEVICE_BOARD,
+};
+
+#endif
diff --git a/arch/sandbox/lib/Makefile b/arch/sandbox/lib/Makefile
index 96761e27f7..7820c55c85 100644
--- a/arch/sandbox/lib/Makefile
+++ b/arch/sandbox/lib/Makefile
@@ -8,5 +8,7 @@
 #
 
 obj-y	+= interrupts.o
+ifndef CONFIG_SPL_BUILD
 obj-$(CONFIG_PCI)	+= pci_io.o
+endif
 obj-$(CONFIG_CMD_BOOTM) += bootm.o