Merge https://gitlab.denx.de/u-boot/custodians/u-boot-x86

- Revert "x86: use invd instead of wbinvd in real mode start code"
- Convert toradex boards README to reST
- serial: ns16550: Move PCI access from ofdata_to_platdata() to probe()
- x86: apl: Use cpu_x86_get_count() for cpu_ops.get_count

8 files changed, 34 insertions, 25 deletions

diff --git a/arch/x86/cpu/apollolake/cpu.c b/arch/x86/cpu/apollolake/cpu.c
index 3d05c82a5c..aa7a3dbd63 100644
--- a/arch/x86/cpu/apollolake/cpu.c
+++ b/arch/x86/cpu/apollolake/cpu.c
@@ -14,15 +14,10 @@ static int apl_get_info(struct udevice *dev, struct cpu_info *info)
 	return cpu_intel_get_info(info, INTEL_BCLK_MHZ);
 }
 
-static int apl_get_count(struct udevice *dev)
-{
-	return 4;
-}
-
 static const struct cpu_ops cpu_x86_apl_ops = {
 	.get_desc	= cpu_x86_get_desc,
 	.get_info	= apl_get_info,
-	.get_count	= apl_get_count,
+	.get_count	= cpu_x86_get_count,
 	.get_vendor	= cpu_x86_get_vendor,
 };
 
diff --git a/arch/x86/cpu/cpu_x86.c b/arch/x86/cpu/cpu_x86.c
index 1aaf851bb4..3f2ba0881e 100644
--- a/arch/x86/cpu/cpu_x86.c
+++ b/arch/x86/cpu/cpu_x86.c
@@ -52,7 +52,7 @@ int cpu_x86_get_desc(struct udevice *dev, char *buf, int size)
 	return 0;
 }
 
-static int cpu_x86_get_count(struct udevice *dev)
+int cpu_x86_get_count(struct udevice *dev)
 {
 	int node, cpu;
 	int num = 0;
diff --git a/arch/x86/cpu/intel_common/p2sb.c b/arch/x86/cpu/intel_common/p2sb.c
index b72f50a627..d5b4846e0a 100644
--- a/arch/x86/cpu/intel_common/p2sb.c
+++ b/arch/x86/cpu/intel_common/p2sb.c
@@ -16,7 +16,7 @@
 
 struct p2sb_platdata {
 #if CONFIG_IS_ENABLED(OF_PLATDATA)
-	struct dtd_intel_apl_p2sb dtplat;
+	struct dtd_intel_p2sb dtplat;
 #endif
 	ulong mmio_base;
 	pci_dev_t bdf;
@@ -43,14 +43,14 @@ struct p2sb_platdata {
 #define P2SB_HPTC_ADDRESS_SELECT_3		(3 << 0)
 
 /*
- * apl_p2sb_early_init() - Enable decoding for HPET range
+ * p2sb_early_init() - Enable decoding for HPET range
  *
  * This is needed by FSP-M which uses the High Precision Event Timer.
  *
  * @dev: P2SB device
  * @return 0 if OK, -ve on error
  */
-static int apl_p2sb_early_init(struct udevice *dev)
+static int p2sb_early_init(struct udevice *dev)
 {
 	struct p2sb_platdata *plat = dev_get_platdata(dev);
 	pci_dev_t pdev = plat->bdf;
@@ -76,7 +76,7 @@ static int apl_p2sb_early_init(struct udevice *dev)
 	return 0;
 }
 
-static int apl_p2sb_spl_init(struct udevice *dev)
+static int p2sb_spl_init(struct udevice *dev)
 {
 	/* Enable decoding for HPET. Needed for FSP global pointer storage */
 	dm_pci_write_config(dev, P2SB_HPTC, P2SB_HPTC_ADDRESS_SELECT_0 |
@@ -85,7 +85,7 @@ static int apl_p2sb_spl_init(struct udevice *dev)
 	return 0;
 }
 
-int apl_p2sb_ofdata_to_platdata(struct udevice *dev)
+int p2sb_ofdata_to_platdata(struct udevice *dev)
 {
 	struct p2sb_uc_priv *upriv = dev_get_uclass_priv(dev);
 	struct p2sb_platdata *plat = dev_get_platdata(dev);
@@ -117,10 +117,10 @@ int apl_p2sb_ofdata_to_platdata(struct udevice *dev)
 	return 0;
 }
 
-static int apl_p2sb_probe(struct udevice *dev)
+static int p2sb_probe(struct udevice *dev)
 {
 	if (spl_phase() == PHASE_TPL) {
-		return apl_p2sb_early_init(dev);
+		return p2sb_early_init(dev);
 	} else {
 		struct p2sb_platdata *plat = dev_get_platdata(dev);
 
@@ -130,7 +130,7 @@ static int apl_p2sb_probe(struct udevice *dev)
 			return -EINVAL;
 
 		if (spl_phase() == PHASE_SPL)
-			return apl_p2sb_spl_init(dev);
+			return p2sb_spl_init(dev);
 	}
 
 	return 0;
@@ -152,17 +152,17 @@ static int p2sb_child_post_bind(struct udevice *dev)
 	return 0;
 }
 
-static const struct udevice_id apl_p2sb_ids[] = {
-	{ .compatible = "intel,apl-p2sb" },
+static const struct udevice_id p2sb_ids[] = {
+	{ .compatible = "intel,p2sb" },
 	{ }
 };
 
-U_BOOT_DRIVER(apl_p2sb_drv) = {
-	.name		= "intel_apl_p2sb",
+U_BOOT_DRIVER(p2sb_drv) = {
+	.name		= "intel_p2sb",
 	.id		= UCLASS_P2SB,
-	.of_match	= apl_p2sb_ids,
-	.probe		= apl_p2sb_probe,
-	.ofdata_to_platdata = apl_p2sb_ofdata_to_platdata,
+	.of_match	= p2sb_ids,
+	.probe		= p2sb_probe,
+	.ofdata_to_platdata = p2sb_ofdata_to_platdata,
 	.platdata_auto_alloc_size = sizeof(struct p2sb_platdata),
 	.per_child_platdata_auto_alloc_size =
 		sizeof(struct p2sb_child_platdata),
diff --git a/arch/x86/cpu/start.S b/arch/x86/cpu/start.S
index 26cf995db2..01524635e9 100644
--- a/arch/x86/cpu/start.S
+++ b/arch/x86/cpu/start.S
@@ -50,7 +50,7 @@ _x86boot_start:
 	movl	%cr0, %eax
 	orl	$(X86_CR0_NW | X86_CR0_CD), %eax
 	movl	%eax, %cr0
-	invd
+	wbinvd
 
 	/*
 	 * Zero the BIST (Built-In Self Test) value since we don't have it.
diff --git a/arch/x86/cpu/start16.S b/arch/x86/cpu/start16.S
index 292e750508..54f4ff6662 100644
--- a/arch/x86/cpu/start16.S
+++ b/arch/x86/cpu/start16.S
@@ -28,7 +28,7 @@ start16:
 	movl	%cr0, %eax
 	orl	$(X86_CR0_NW | X86_CR0_CD), %eax
 	movl	%eax, %cr0
-	invd
+	wbinvd
 
 	/* load the temporary Global Descriptor Table */
 data32 cs	lidt	idt_ptr
diff --git a/arch/x86/dts/chromebook_coral.dts b/arch/x86/dts/chromebook_coral.dts
index 44a4619a66..af52e11c89 100644
--- a/arch/x86/dts/chromebook_coral.dts
+++ b/arch/x86/dts/chromebook_coral.dts
@@ -136,7 +136,7 @@
 		p2sb: p2sb@d,0 {
 			u-boot,dm-pre-reloc;
 			reg = <0x02006810 0 0 0 0>;
-			compatible = "intel,apl-p2sb";
+			compatible = "intel,p2sb";
 			early-regs = <IOMAP_P2SB_BAR 0x100000>;
 
 			n {
diff --git a/arch/x86/include/asm/cpu_x86.h b/arch/x86/include/asm/cpu_x86.h
index 19223f2c3b..ae8f4dcd5d 100644
--- a/arch/x86/include/asm/cpu_x86.h
+++ b/arch/x86/include/asm/cpu_x86.h
@@ -31,6 +31,18 @@ int cpu_x86_bind(struct udevice *dev);
 int cpu_x86_get_desc(struct udevice *dev, char *buf, int size);
 
 /**
+ * cpu_x86_get_count() - Get the number of cores for an x86 CPU
+ *
+ * This function is suitable to use as the get_count() method for
+ * the CPU uclass.
+ *
+ * @dev:	Device to check (UCLASS_CPU)
+ * @return:	Number of cores if successful,
+ *		-ENOENT if not "/cpus" entry is found in the device tree
+ */
+int cpu_x86_get_count(struct udevice *dev);
+
+/**
  * cpu_x86_get_vendor() - Get a vendor string for an x86 CPU
  *
  * This uses cpu_vendor_name() and is suitable to use as the get_vendor()
diff --git a/arch/x86/lib/mrccache.c b/arch/x86/lib/mrccache.c
index 8914960226..d1c44f290c 100644
--- a/arch/x86/lib/mrccache.c
+++ b/arch/x86/lib/mrccache.c
@@ -241,6 +241,8 @@ int mrccache_get_region(enum mrc_type_t type, struct udevice **devp,
 	 * memory map cannot be read.
 	 */
 	ret = uclass_find_first_device(UCLASS_SPI_FLASH, &dev);
+	if (!ret && !dev)
+		ret = -ENODEV;
 	if (ret)
 		return log_msg_ret("Cannot find SPI flash\n", ret);
 	ret = dm_spi_get_mmap(dev, &map_base, &map_size, &offset);