16 files changed, 99 insertions, 37 deletions
diff --git a/arch/Kconfig b/arch/Kconfig
index e8f9a9e1b7..27843cd79c 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -7,6 +7,17 @@ config HAVE_ARCH_IOREMAP
 config NEEDS_MANUAL_RELOC
 	bool
 
+config LINKER_LIST_ALIGN
+	int
+	default 32 if SANDBOX
+	default 8 if ARM64 || X86
+	default 4
+	help
+	  Force the each linker list to be aligned to this boundary. This
+	  is required if ll_entry_get() is used, since otherwise the linker
+	  may add padding into the table, thus breaking it.
+	  See linker_lists.rst for full details.
+
 choice
 	prompt "Architecture select"
 	default SANDBOX
diff --git a/arch/arm/include/asm/mach-imx/mxc_i2c.h b/arch/arm/include/asm/mach-imx/mxc_i2c.h
index 81fd981444..c016aa7474 100644
--- a/arch/arm/include/asm/mach-imx/mxc_i2c.h
+++ b/arch/arm/include/asm/mach-imx/mxc_i2c.h
@@ -42,7 +42,7 @@ struct mxc_i2c_bus {
 	/*
 	 * board file can use this index to locate which i2c_pads_info is for
 	 * i2c_idle_bus. When pinmux is implement, this entry can be
-	 * discarded. Here we do not use dev->seq, because we do not want to
+	 * discarded. Here we do not use dev_seq(dev), because we do not want to
 	 * export device to board file.
 	 */
 	int index;
diff --git a/arch/arm/mach-k3/am6_init.c b/arch/arm/mach-k3/am6_init.c
index 603834e507..0fed5aec59 100644
--- a/arch/arm/mach-k3/am6_init.c
+++ b/arch/arm/mach-k3/am6_init.c
@@ -208,7 +208,7 @@ void board_init_f(ulong dummy)
 	 * firmware (SYSFW) image for various purposes and SYSFW depends on us
 	 * to initialize its pin settings.
 	 */
-	ret = uclass_find_device_by_seq(UCLASS_SERIAL, 0, true, &dev);
+	ret = uclass_find_device_by_seq(UCLASS_SERIAL, 0, &dev);
 	if (!ret)
 		pinctrl_select_state(dev, "default");
 
diff --git a/arch/arm/mach-k3/j721e_init.c b/arch/arm/mach-k3/j721e_init.c
index a36e4ed603..0201690f93 100644
--- a/arch/arm/mach-k3/j721e_init.c
+++ b/arch/arm/mach-k3/j721e_init.c
@@ -167,7 +167,7 @@ void board_init_f(ulong dummy)
 	 * firmware (SYSFW) image for various purposes and SYSFW depends on us
 	 * to initialize its pin settings.
 	 */
-	ret = uclass_find_device_by_seq(UCLASS_SERIAL, 0, true, &dev);
+	ret = uclass_find_device_by_seq(UCLASS_SERIAL, 0, &dev);
 	if (!ret)
 		pinctrl_select_state(dev, "default");
 
diff --git a/arch/arm/mach-k3/sysfw-loader.c b/arch/arm/mach-k3/sysfw-loader.c
index 78c158c63f..708d9c8508 100644
--- a/arch/arm/mach-k3/sysfw-loader.c
+++ b/arch/arm/mach-k3/sysfw-loader.c
@@ -223,7 +223,7 @@ static void *k3_sysfw_get_spi_addr(void)
 	int ret;
 
 	ret = uclass_find_device_by_seq(UCLASS_SPI, CONFIG_SF_DEFAULT_BUS,
-					true, &dev);
+					&dev);
 	if (ret)
 		return NULL;
 
diff --git a/arch/sandbox/cpu/Makefile b/arch/sandbox/cpu/Makefile
index bac96447d5..de7fe7f391 100644
--- a/arch/sandbox/cpu/Makefile
+++ b/arch/sandbox/cpu/Makefile
@@ -5,7 +5,7 @@
 # (C) Copyright 2000-2003
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 
-obj-y	:= cpu.o state.o
+obj-y	:= cache.o cpu.o state.o
 extra-y	:= start.o os.o
 extra-$(CONFIG_SANDBOX_SDL)	+= sdl.o
 obj-$(CONFIG_SPL_BUILD)	+= spl.o
diff --git a/arch/sandbox/cpu/cache.c b/arch/sandbox/cpu/cache.c
new file mode 100644
index 0000000000..46c62c0b44
--- /dev/null
+++ b/arch/sandbox/cpu/cache.c
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2020, Heinrich Schuchardt <xypron.glpk@gmx.de>
+ */
+
+#include <common.h>
+#include <cpu_func.h>
+#include <asm/state.h>
+
+void flush_cache(unsigned long addr, unsigned long size)
+{
+	/* Clang uses (char *) parameters, GCC (void *) */
+	__builtin___clear_cache((void *)addr, (void *)(addr + size));
+}
+
+void invalidate_icache_all(void)
+{
+	struct sandbox_state *state = state_get_current();
+
+	/* Clang uses (char *) parameters, GCC (void *) */
+	__builtin___clear_cache((void *)state->ram_buf,
+				(void *)(state->ram_buf + state->ram_size));
+}
diff --git a/arch/sandbox/cpu/start.c b/arch/sandbox/cpu/start.c
index f6c98545e0..fe494aef75 100644
--- a/arch/sandbox/cpu/start.c
+++ b/arch/sandbox/cpu/start.c
@@ -6,6 +6,7 @@
 #include <common.h>
 #include <command.h>
 #include <dm/root.h>
+#include <efi_loader.h>
 #include <errno.h>
 #include <init.h>
 #include <os.h>
@@ -406,6 +407,15 @@ void state_show(struct sandbox_state *state)
 	printf("\n");
 }
 
+void __efi_runtime EFIAPI efi_reset_system(
+		enum efi_reset_type reset_type,
+		efi_status_t reset_status,
+		unsigned long data_size, void *reset_data)
+{
+	os_fd_restore();
+	os_relaunch(os_argv);
+}
+
 void sandbox_reset(void)
 {
 	/* Do this here while it still has an effect */
diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts
index f3b766271d..c9b9b7b75e 100644
--- a/arch/sandbox/dts/test.dts
+++ b/arch/sandbox/dts/test.dts
@@ -33,10 +33,11 @@
 		testfdt6 = "/e-test";
 		testbus3 = "/some-bus";
 		testfdt0 = "/some-bus/c-test@0";
-		testfdt1 = "/some-bus/c-test@1";
+		testfdt12 = "/some-bus/c-test@1";
 		testfdt3 = "/b-test";
 		testfdt5 = "/some-bus/c-test@5";
 		testfdt8 = "/a-test";
+		testfdtm1 = &testfdtm1;
 		fdt-dummy0 = "/translation-test@8000/dev@0,0";
 		fdt-dummy1 = "/translation-test@8000/dev@1,100";
 		fdt-dummy2 = "/translation-test@8000/dev@2,200";
@@ -864,13 +865,21 @@
 		#size-cells = <0>;
 		reg = <0 1>;
 		compatible = "sandbox,spi";
-		cs-gpios = <0>, <&gpio_a 0>;
+		cs-gpios = <0>, <0>, <&gpio_a 0>;
 		spi.bin@0 {
 			reg = <0>;
 			compatible = "spansion,m25p16", "jedec,spi-nor";
 			spi-max-frequency = <40000000>;
 			sandbox,filename = "spi.bin";
 		};
+		spi.bin@1 {
+			reg = <1>;
+			compatible = "spansion,m25p16", "jedec,spi-nor";
+			spi-max-frequency = <50000000>;
+			sandbox,filename = "spi.bin";
+			spi-cpol;
+			spi-cpha;
+		};
 	};
 
 	syscon0: syscon@0 {
@@ -917,6 +926,18 @@
 		idle-state = <0xabcd>;
 	};
 
+	testfdtm0 {
+		compatible = "denx,u-boot-fdtm-test";
+	};
+
+	testfdtm1: testfdtm1 {
+		compatible = "denx,u-boot-fdtm-test";
+	};
+
+	testfdtm2 {
+		compatible = "denx,u-boot-fdtm-test";
+	};
+
 	timer@0 {
 		compatible = "sandbox,timer";
 		clock-frequency = <1000000>;
diff --git a/arch/sandbox/include/asm/spi.h b/arch/sandbox/include/asm/spi.h
index 98e1826e2c..e8268bbe07 100644
--- a/arch/sandbox/include/asm/spi.h
+++ b/arch/sandbox/include/asm/spi.h
@@ -32,14 +32,4 @@ struct sandbox_spi_emu_ops {
 	int (*xfer)(void *priv, const u8 *rx, u8 *tx, uint bytes);
 };
 
-/*
- * Extract the bus/cs from the spi spec and return the start of the spi
- * client spec.  If the bus/cs are invalid for the current config, then
- * it returns NULL.
- *
- * Example: arg="0:1:foo" will set bus to 0, cs to 1, and return "foo"
- */
-const char *sandbox_spi_parse_spec(const char *arg, unsigned long *bus,
-				   unsigned long *cs);
-
 #endif
diff --git a/arch/sandbox/include/asm/test.h b/arch/sandbox/include/asm/test.h
index 7f99d07c47..05f66f700c 100644
--- a/arch/sandbox/include/asm/test.h
+++ b/arch/sandbox/include/asm/test.h
@@ -203,6 +203,22 @@ void sandbox_set_allow_beep(struct udevice *dev, bool allow);
 int sandbox_get_beep_frequency(struct udevice *dev);
 
 /**
+ * sandbox_spi_get_speed() - Get current speed setting of a sandbox spi bus
+ *
+ * @dev: Device to check
+ * @return current bus speed
+ */
+uint sandbox_spi_get_speed(struct udevice *dev);
+
+/**
+ * sandbox_spi_get_mode() - Get current mode setting of a sandbox spi bus
+ *
+ * @dev: Device to check
+ * @return current mode
+ */
+uint sandbox_spi_get_mode(struct udevice *dev);
+
+/**
  * sandbox_get_pch_spi_protect() - Get the PCI SPI protection status
  *
  * @dev: Device to check
diff --git a/arch/x86/cpu/apollolake/cpu.c b/arch/x86/cpu/apollolake/cpu.c
index d37f91d1ce..328f79255f 100644
--- a/arch/x86/cpu/apollolake/cpu.c
+++ b/arch/x86/cpu/apollolake/cpu.c
@@ -63,7 +63,7 @@ static int apl_get_info(const struct udevice *dev, struct cpu_info *info)
 
 static int acpi_cpu_fill_ssdt(const struct udevice *dev, struct acpi_ctx *ctx)
 {
-	uint core_id = dev->req_seq;
+	uint core_id = dev_seq(dev);
 	int cores_per_package;
 	int ret;
 
diff --git a/arch/x86/cpu/broadwell/cpu_full.c b/arch/x86/cpu/broadwell/cpu_full.c
index 1ff4dce0b5..ea9e98dde6 100644
--- a/arch/x86/cpu/broadwell/cpu_full.c
+++ b/arch/x86/cpu/broadwell/cpu_full.c
@@ -638,7 +638,7 @@ static int broadwell_get_count(const struct udevice *dev)
 
 static int cpu_x86_broadwell_probe(struct udevice *dev)
 {
-	if (dev->seq == 0) {
+	if (dev_seq(dev) == 0) {
 		cpu_core_init(dev);
 		return broadwell_init(dev);
 	}
diff --git a/arch/x86/cpu/ivybridge/model_206ax.c b/arch/x86/cpu/ivybridge/model_206ax.c
index 55f7cc2b2e..598ebcdf08 100644
--- a/arch/x86/cpu/ivybridge/model_206ax.c
+++ b/arch/x86/cpu/ivybridge/model_206ax.c
@@ -425,7 +425,7 @@ static int model_206ax_get_count(const struct udevice *dev)
 
 static int cpu_x86_model_206ax_probe(struct udevice *dev)
 {
-	if (dev->seq == 0)
+	if (dev_seq(dev) == 0)
 		model_206ax_init(dev);
 
 	return 0;
diff --git a/arch/x86/cpu/mp_init.c b/arch/x86/cpu/mp_init.c
index a0e112178d..0e61c7b5d7 100644
--- a/arch/x86/cpu/mp_init.c
+++ b/arch/x86/cpu/mp_init.c
@@ -87,7 +87,7 @@ DECLARE_GLOBAL_DATA_PTR;
  *			intel,apic-id = <2>;
  *		};
  *
- * Here the 'reg' property is the CPU number and then is placed in dev->req_seq
+ * Here the 'reg' property is the CPU number and then is placed in dev_seq(cpu)
  * so that we can index into ap_callbacks[] using that. The APIC ID is different
  * and may not be sequential (it typically is if hyperthreading is supported).
  *
@@ -135,7 +135,7 @@ struct mp_flight_plan {
  *
  * @func: Function to run
  * @arg: Argument to pass to the function
- * @logical_cpu_number: Either a CPU number (i.e. dev->req_seq) or a special
+ * @logical_cpu_number: Either a CPU number (i.e. dev_seq(cpu) or a special
  *	value like MP_SELECT_BSP. It tells the AP whether it should process this
  *	callback
  */
@@ -152,7 +152,7 @@ static struct mp_flight_plan mp_info;
  * ap_callbacks - Callback mailbox array
  *
  * Array of callback, one entry for each available CPU, indexed by the CPU
- * number, which is dev->req_seq. The entry for the main CPU is never used.
+ * number, which is dev_seq(cpu). The entry for the main CPU is never used.
  * When this is NULL, there is no pending work for the CPU to run. When
  * non-NULL it points to the mp_callback structure. This is shared between all
  * CPUs, so should only be written by the main CPU.
@@ -562,7 +562,7 @@ static int get_bsp(struct udevice **devp, int *cpu_countp)
 	if (cpu_countp)
 		*cpu_countp = ret;
 
-	return dev->req_seq >= 0 ? dev->req_seq : 0;
+	return dev_seq(dev) >= 0 ? dev_seq(dev) : 0;
 }
 
 /**
@@ -614,7 +614,7 @@ static void store_callback(struct mp_callback **slot, struct mp_callback *val)
 static int run_ap_work(struct mp_callback *callback, struct udevice *bsp,
 		       int num_cpus, uint expire_ms)
 {
-	int cur_cpu = bsp->req_seq;
+	int cur_cpu = dev_seq(bsp);
 	int num_aps = num_cpus - 1; /* number of non-BSPs to get this message */
 	int cpus_accepted;
 	ulong start;
@@ -679,7 +679,7 @@ static int ap_wait_for_instruction(struct udevice *cpu, void *unused)
 	if (!IS_ENABLED(CONFIG_SMP_AP_WORK))
 		return 0;
 
-	per_cpu_slot = &ap_callbacks[cpu->req_seq];
+	per_cpu_slot = &ap_callbacks[dev_seq(cpu)];
 
 	while (1) {
 		struct mp_callback *cb = read_callback(per_cpu_slot);
@@ -694,7 +694,7 @@ static int ap_wait_for_instruction(struct udevice *cpu, void *unused)
 		mfence();
 		if (lcb.logical_cpu_number == MP_SELECT_ALL ||
 		    lcb.logical_cpu_number == MP_SELECT_APS ||
-		    cpu->req_seq == lcb.logical_cpu_number)
+		    dev_seq(cpu) == lcb.logical_cpu_number)
 			lcb.func(lcb.arg);
 
 		/* Indicate we are finished */
@@ -839,7 +839,6 @@ int mp_init(void)
 	int num_aps, num_cpus;
 	atomic_t *ap_count;
 	struct udevice *cpu;
-	struct uclass *uc;
 	int ret;
 
 	if (IS_ENABLED(CONFIG_QFW)) {
@@ -848,14 +847,6 @@ int mp_init(void)
 			return ret;
 	}
 
-	/*
-	 * Multiple APs are brought up simultaneously and they may get the same
-	 * seq num in the uclass_resolve_seq() during device_probe(). To avoid
-	 * this, set req_seq to the reg number in the device tree in advance.
-	 */
-	uclass_id_foreach_dev(UCLASS_CPU, cpu, uc)
-		cpu->req_seq = dev_read_u32_default(cpu, "reg", -1);
-
 	ret = get_bsp(&cpu, &num_cpus);
 	if (ret < 0) {
 		debug("Cannot init boot CPU: err=%d\n", ret);
diff --git a/arch/x86/include/asm/mp.h b/arch/x86/include/asm/mp.h
index 5f9b8c6564..1e4e35321d 100644
--- a/arch/x86/include/asm/mp.h
+++ b/arch/x86/include/asm/mp.h
@@ -114,7 +114,7 @@ typedef void (*mp_run_func)(void *arg);
  * Running on anything other than the boot CPU is only supported if
  * CONFIG_SMP_AP_WORK is enabled
  *
- * @cpu_select: CPU to run on (its dev->req_seq value), or MP_SELECT_ALL for
+ * @cpu_select: CPU to run on (its dev_seq() value), or MP_SELECT_ALL for
  *	all, or MP_SELECT_BSP for BSP
  * @func: Function to run
  * @arg: Argument to pass to the function