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

- Fix CMD_ACPI dependency in Kconfig
- Correct overflow in __udelay() in TSC timer driver
- Add a devicetree node for eMMC for Coral
- Minor improvements on image loading
- Reduce size of Samus image

arch/x86/cpu/acpi_gpe.c

@@ -4,6 +4,8 @@
  * Written by Simon Glass <sjg@chromium.org>
  */
 
+#define LOG_CATEGORY	UCLASS_IRQ
+
 #include <common.h>
 #include <dm.h>
 #include <irq.h>
@@ -102,8 +104,8 @@ static const struct udevice_id acpi_gpe_ids[] = {
 	{ }
 };
 
-U_BOOT_DRIVER(acpi_gpe_drv) = {
-	.name		= "acpi_gpe",
+U_BOOT_DRIVER(intel_acpi_gpe) = {
+	.name		= "intel_acpi_gpe",
 	.id		= UCLASS_IRQ,
 	.of_match	= acpi_gpe_ids,
 	.ops		= &acpi_gpe_ops,

arch/x86/cpu/apollolake/spl.c

@@ -3,6 +3,8 @@
  * Copyright 2019 Google LLC
  */
 
+#define LOG_CATEGORY LOGC_BOOT
+
 #include <common.h>
 #include <binman_sym.h>
 #include <bootstage.h>
@@ -33,12 +35,11 @@ static int rom_load_image(struct spl_image_info *spl_image,
 	int ret;
 
 	spl_image->size = CONFIG_SYS_MONITOR_LEN;  /* We don't know SPL size */
-	spl_image->entry_point = spl_phase() == PHASE_TPL ?
-		CONFIG_SPL_TEXT_BASE : CONFIG_SYS_TEXT_BASE;
+	spl_image->entry_point = spl_get_image_text_base();
 	spl_image->load_addr = spl_image->entry_point;
 	spl_image->os = IH_OS_U_BOOT;
 	spl_image->name = "U-Boot";
-	debug("Reading from mapped SPI %lx, size %lx", spl_pos, spl_size);
+	log_debug("Reading from mapped SPI %lx, size %lx\n", spl_pos, spl_size);
 
 	if (CONFIG_IS_ENABLED(SPI_FLASH_SUPPORT)) {
 		ret = uclass_find_first_device(UCLASS_SPI_FLASH, &dev);
@@ -56,7 +57,8 @@ static int rom_load_image(struct spl_image_info *spl_image,
 			return ret;
 	}
 	spl_pos += map_base & ~0xff000000;
-	debug(", base %lx, pos %lx\n", map_base, spl_pos);
+	log_debug(", base %lx, pos %lx, load %lx\n", map_base, spl_pos,
+		  spl_image->load_addr);
 	bootstage_start(BOOTSTAGE_ID_ACCUM_MMAP_SPI, "mmap_spi");
 	memcpy((void *)spl_image->load_addr, (void *)spl_pos, spl_size);
 	cpu_flush_l1d_to_l2();
@@ -121,7 +123,7 @@ static int spl_fast_spi_load_image(struct spl_image_info *spl_image,
 	spl_image->os = IH_OS_U_BOOT;
 	spl_image->name = "U-Boot";
 	spl_pos &= ~0xff000000;
-	debug("Reading from flash %lx, size %lx\n", spl_pos, spl_size);
+	log_debug("Reading from flash %lx, size %lx\n", spl_pos, spl_size);
 	ret = spi_flash_read_dm(dev, spl_pos, spl_size,
 				(void *)spl_image->load_addr);
 	cpu_flush_l1d_to_l2();

arch/x86/cpu/u-boot-spl.lds

@@ -43,11 +43,23 @@ SECTIONS
 		__binman_sym_start = .;
 		KEEP(*(SORT(.binman_sym*)));
 		__binman_sym_end = .;
+
+		/*
+		 * Force 32-byte alignment so that it lines up with the start of
+		 * bss, which may have up to 32-byte alignment. This ensures
+		 * that the end of the .bin file matches up with
+		 * _image_binary_end or __bss_end - see board_fdt_blob_setup().
+		 * The alignment of BSS depends on what is in it, so can range
+		 * from 4 to 32 bytes.
+		 */
+		. = ALIGN(32);
 	}
 
         _image_binary_end = .;
 
+#if CONFIG_IS_ENABLED(SEPARATE_BSS)
 	. = 0x120000;
+#endif
 	.bss (OVERLAY) : {
 		__bss_start = .;
 		*(.bss*)

arch/x86/dts/chromebook_coral.dts

@@ -575,6 +575,12 @@
 			acpi,name = "SDCD";
 		};
 
+		emmc: emmc@1c,0 {
+			reg = <0x0000e000 0 0 0 0>;
+			compatible = "intel,apl-emmc";
+			non-removable;
+		};
+
 		pch: pch@1f,0 {
 			reg = <0x0000f800 0 0 0 0>;
 			compatible = "intel,apl-pch";

arch/x86/include/asm/intel_gnvs.h

@@ -9,6 +9,7 @@
 #ifndef _INTEL_GNVS_H_
 #define _INTEL_GNVS_H_
 
+#include <linux/bitops.h>
 /*
  * The chromeos_acpi portion of ACPI GNVS is assumed to live from offset
  * 0x100 - 0x1000.  When defining acpi_global_nvs, use check_member
@@ -18,6 +19,11 @@
  */
 #define GNVS_CHROMEOS_ACPI_OFFSET 0x100
 
+enum {
+	BOOT_REASON_OTHER = 0,
+	BOOT_REASON_S3DIAG = 9
+};
+
 enum {
 	CHSW_RECOVERY_X86 =		BIT(1),
 	CHSW_RECOVERY_EC =		BIT(2),
@@ -25,6 +31,22 @@ enum {
 	CHSW_FIRMWARE_WP =		BIT(9),
 };
 
+enum {
+	RECOVERY_REASON_NONE = 0,
+	RECOVERY_REASON_ME = 1
+};
+
+enum {
+	ACTIVE_ECFW_RO = 0,
+	ACTIVE_ECFW_RW = 1
+};
+
+enum {
+	BINF_RECOVERY = 0,
+	BINF_RW_A = 1,
+	BINF_RW_B = 2
+};
+
 enum {
 	FIRMWARE_TYPE_AUTO_DETECT = -1,
 	FIRMWARE_TYPE_RECOVERY = 0,
@@ -40,14 +62,14 @@ struct __packed chromeos_acpi_gnvs {
 	u32	active_main_fw;	/* 04 (0=recovery, 1=A, 2=B) */
 	u32	activeec_fw;	/* 08 (0=RO, 1=RW) */
 	u16	switches;	/* 0c CHSW */
-	u8	vbt4[256];	/* 0e HWID */
-	u8	vbt5[64];	/* 10e FWID */
-	u8	vbt6[64];	/* 14e FRID - 275 */
+	u8	hwid[256];	/* 0e HWID */
+	u8	fwid[64];	/* 10e FWID */
+	u8	frid[64];	/* 14e FRID - 275 */
 	u32	main_fw_type;	/* 18e (2 = developer mode) */
-	u32	vbt8;		/* 192 recovery reason */
-	u32	vbt9;		/* 196 fmap base address */
+	u32	recovery_reason; /* 192 recovery reason */
+	u32	fmap_base;	/* 196 fmap base address */
 	u8	vdat[3072];	/* 19a VDAT space filled by verified boot */
-	u32	vbt10;		/* d9a smbios bios version */
+	u32	fwid_ptr;	/* d9a smbios bios version */
 	u32	mehh[8];	/* d9e management engine hash */
 	u32	ramoops_base;	/* dbe ramoops base address */
 	u32	ramoops_len;	/* dc2 ramoops length */

arch/x86/include/asm/zimage.h

@@ -62,6 +62,16 @@ struct boot_params *load_zimage(char *image, unsigned long kernel_size,
 int setup_zimage(struct boot_params *setup_base, char *cmd_line, int auto_boot,
 		 ulong initrd_addr, ulong initrd_size, ulong cmdline_force);
 
+/**
+ * zimage_dump() - Dump the metadata of a zimage
+ *
+ * This shows all available information in a zimage that has been loaded.
+ *
+ * @base_ptr: Pointer to the boot parameters, typically at address
+ *	DEFAULT_SETUP_BASE
+ */
+void zimage_dump(struct boot_params *base_ptr);
+
 void setup_video(struct screen_info *screen_info);
 void setup_efi_info(struct efi_info *efi_info);
 

arch/x86/lib/spl.c

@@ -115,8 +115,8 @@ static int x86_spl_init(void)
 	}
 
 #ifndef CONFIG_SYS_COREBOOT
-# ifndef CONFIG_TPL
 	memset(&__bss_start, 0, (ulong)&__bss_end - (ulong)&__bss_start);
+# ifndef CONFIG_TPL
 
 	/* TODO(sjg@chromium.org): Consider calling cpu_init_r() here */
 	ret = interrupt_init();

arch/x86/lib/tpl.c

@@ -111,7 +111,12 @@ int spl_spi_load_image(void)
 
 void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
 {
-	debug("Jumping to U-Boot SPL at %lx\n", (ulong)spl_image->entry_point);
+	debug("Jumping to %s at %lx\n", spl_phase_name(spl_next_phase()),
+	      (ulong)spl_image->entry_point);
+#ifdef DEBUG
+	print_buffer(spl_image->entry_point, (void *)spl_image->entry_point, 1,
+		     0x20, 0);
+#endif
 	jump_to_spl(spl_image->entry_point);
 	hang();
 }

arch/x86/lib/zimage.c

@@ -109,8 +109,11 @@ static void build_command_line(char *command_line, int auto_boot)
 
 	if (env_command_line)
 		strcat(command_line, env_command_line);
-
-	printf("Kernel command line: \"%s\"\n", command_line);
+#ifdef DEBUG
+	printf("Kernel command line:");
+	puts(command_line);
+	printf("\n");
+#endif
 }
 
 static int kernel_magic_ok(struct setup_header *hdr)
@@ -354,7 +357,8 @@ int setup_zimage(struct boot_params *setup_base, char *cmd_line, int auto_boot,
 			build_command_line(cmd_line, auto_boot);
 		ret = bootm_process_cmdline(cmd_line, max_size, BOOTM_CL_ALL);
 		if (ret) {
-			printf("Cmdline setup failed (err=%d)\n", ret);
+			printf("Cmdline setup failed (max_size=%x, bootproto=%x, err=%d)\n",
+			       max_size, bootproto, ret);
 			return ret;
 		}
 		printf("Kernel command line: \"");
@@ -600,19 +604,12 @@ static void show_loader(struct setup_header *hdr)
 	printf("\n");
 }
 
-int do_zboot_dump(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
+void zimage_dump(struct boot_params *base_ptr)
 {
-	struct boot_params *base_ptr = state.base_ptr;
 	struct setup_header *hdr;
 	const char *version;
 	int i;
 
-	if (argc > 1)
-		base_ptr = (void *)simple_strtoul(argv[1], NULL, 16);
-	if (!base_ptr) {
-		printf("No zboot setup_base\n");
-		return CMD_RET_FAILURE;
-	}
 	printf("Setup located at %p:\n\n", base_ptr);
 	print_num64("ACPI RSDP addr", base_ptr->acpi_rsdp_addr);
 
@@ -688,6 +685,20 @@ int do_zboot_dump(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 	print_num("Handover offset", hdr->handover_offset);
 	if (get_boot_protocol(hdr, false) >= 0x215)
 		print_num("Kernel info offset", hdr->kernel_info_offset);
+}
+
+static int do_zboot_dump(struct cmd_tbl *cmdtp, int flag, int argc,
+			 char *const argv[])
+{
+	struct boot_params *base_ptr = state.base_ptr;
+
+	if (argc > 1)
+		base_ptr = (void *)simple_strtoul(argv[1], NULL, 16);
+	if (!base_ptr) {
+		printf("No zboot setup_base\n");
+		return CMD_RET_FAILURE;
+	}
+	zimage_dump(base_ptr);
 
 	return 0;
 }

cmd/Kconfig

@@ -84,7 +84,8 @@ menu "Info commands"
 
 config CMD_ACPI
 	bool "acpi"
-	default y if ACPIGEN
+	depends on ACPIGEN
+	default y
 	help
 	  List and dump ACPI tables. ACPI (Advanced Configuration and Power
 	  Interface) is used mostly on x86 for providing information to the

common/spl/spl.c

@@ -144,6 +144,12 @@ ulong spl_get_image_size(void)
 		binman_sym(ulong, u_boot_any, size);
 }
 
+ulong spl_get_image_text_base(void)
+{
+	return spl_phase() == PHASE_TPL ? CONFIG_SPL_TEXT_BASE :
+		CONFIG_SYS_TEXT_BASE;
+}
+
 /*
  * Weak default function for board specific cleanup/preparation before
  * Linux boot. Some boards/platforms might not need it, so just provide

configs/chromebook_samus_defconfig

@@ -54,6 +54,7 @@ CONFIG_ENV_OVERWRITE=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_REGMAP=y
 CONFIG_SYSCON=y
+# CONFIG_ACPIGEN is not set
 CONFIG_CPU=y
 CONFIG_DM_I2C=y
 CONFIG_SYS_I2C_DW=y

drivers/timer/tsc_timer.c

@@ -372,7 +372,7 @@ void __udelay(unsigned long usec)
 	u64 now = get_ticks();
 	u64 stop;
 
-	stop = now + usec * get_tbclk_mhz();
+	stop = now + (u64)usec * get_tbclk_mhz();
 
 	while ((int64_t)(stop - get_ticks()) > 0)
 #if defined(CONFIG_QEMU) && defined(CONFIG_SMP)

include/acpi/acpi_device.h

@@ -171,10 +171,11 @@ enum acpi_gpio_polarity {
  * @io_restrict: I/O restriction setting
  * @polarity: GPIO polarity
  *
- * Note that GpioIo doesn't have any means of Active Low / High setting, so a
- * _DSD must be provided to mitigate this.
+ * Note that GpioIo() doesn't have any means of Active Low / High setting, so a
+ * _DSD must be provided to mitigate this. This parameter does not make sense
+ * for GpioInt() since it has its own means to define it.
  *
- * GpioIo doesn't properly communicate the initial state of the output pin,
+ * GpioIo() doesn't properly communicate the initial state of the output pin,
  * thus Linux assumes the simple rule:
  *
  * Pull Bias       Polarity      Requested...
@@ -184,7 +185,7 @@ enum acpi_gpio_polarity {
  *                               assuming non-active (Polarity = !Pull Bias)
  *
  * Down            Low           as low, assuming active
- * Down            High          as high, assuming non-active
+ * Down            High          as low, assuming non-active
  * Up              Low           as high, assuming non-active
  * Up              High          as high, assuming active
  *

include/configs/chromebook_samus.h

@@ -15,6 +15,9 @@
 #include <configs/x86-common.h>
 #include <configs/x86-chromebook.h>
 
+/* We can rely on running natively, and this saves code size */
+#undef CONFIG_BIOSEMU
+
 #undef CONFIG_STD_DEVICES_SETTINGS
 #define CONFIG_STD_DEVICES_SETTINGS     "stdin=usbkbd,i8042-kbd,serial\0" \
 					"stdout=vidconsole,serial\0" \

include/spl.h

@@ -254,6 +254,16 @@ ulong spl_get_image_pos(void);
  */
 ulong spl_get_image_size(void);
 
+/**
+ * spl_get_image_text_base() - get the text base of the next phase
+ *
+ * This returns the address that the next stage is linked to run at, i.e.
+ * CONFIG_SPL_TEXT_BASE or CONFIG_SYS_TEXT_BASE
+ *
+ * @return text-base address
+ */
+ulong spl_get_image_text_base(void);
+
 /**
  * spl_load_simple_fit_skip_processing() - Hook to allow skipping the FIT
  *	image processing during spl_load_simple_fit().