event: Convert misc_init_f() to use events

This hook can be implmented using events, for the three boards that
actually use it.

Add the event type and event handlers. Drop CONFIG_MISC_INIT_F since we
can just use CONFIG_EVENT to control this. Since sandbox always enables
CONFIG_EVENT, we can drop the defconfig lines there too.

Signed-off-by: Simon Glass <sjg@chromium.org>

arch/sandbox/cpu/start.c

@@ -8,6 +8,7 @@
 #include <command.h>
 #include <efi_loader.h>
 #include <errno.h>
+#include <event.h>
 #include <init.h>
 #include <log.h>
 #include <os.h>
@@ -119,10 +120,11 @@ int sandbox_early_getopt_check(void)
 	os_exit(0);
 }
 
-int misc_init_f(void)
+static int sandbox_misc_init_f(void *ctx, struct event *event)
 {
 	return sandbox_early_getopt_check();
 }
+EVENT_SPY(EVT_MISC_INIT_F, sandbox_misc_init_f);
 
 static int sandbox_cmdline_cb_help(struct sandbox_state *state, const char *arg)
 {

board/google/chromebook_coral/coral.c

@@ -10,6 +10,7 @@
 #include <command.h>
 #include <cros_ec.h>
 #include <dm.h>
+#include <event.h>
 #include <init.h>
 #include <log.h>
 #include <sysinfo.h>
@@ -32,11 +33,12 @@ struct cros_gpio_info {
 	int flags;
 };
 
-int misc_init_f(void)
+static int coral_check_ll_boot(void *ctx, struct event *event)
 {
 	if (!ll_boot_init()) {
 		printf("Running as secondary loader");
-		if (gd->arch.coreboot_table) {
+		if (CONFIG_IS_ENABLED(COREBOOT_SYSINFO) &&
+		    gd->arch.coreboot_table) {
 			int ret;
 
 			printf(" (found coreboot table at %lx)",
@@ -55,6 +57,7 @@ int misc_init_f(void)
 
 	return 0;
 }
+EVENT_SPY(EVT_MISC_INIT_F, coral_check_ll_boot);
 
 int arch_misc_init(void)
 {

board/keymile/kmcent2/kmcent2.c

@@ -6,6 +6,7 @@
  * Copyright 2013 Freescale Semiconductor, Inc.
  */
 
+#include <event.h>
 #include <asm/cache.h>
 #include <asm/fsl_fdt.h>
 #include <asm/fsl_law.h>
@@ -181,7 +182,7 @@ unsigned long get_serial_clock(unsigned long dummy)
 	return (gd->bus_clk / 2);
 }
 
-int misc_init_f(void)
+static int kmcent2_misc_init_f(void *ctx, struct event *event)
 {
 	/* configure QRIO pis for i2c deblocking */
 	i2c_deblock_gpio_cfg();
@@ -209,6 +210,7 @@ int misc_init_f(void)
 
 	return 0;
 }
+EVENT_SPY(EVT_MISC_INIT_F, kmcent2_misc_init_f);
 
 #define USED_SRDS_BANK 0
 #define EXPECTED_SRDS_RFCK SRDS_PLLCR0_RFCK_SEL_100

board/keymile/pg-wcom-ls102xa/pg-wcom-ls102xa.c

@@ -4,6 +4,7 @@
  */
 
 #include <common.h>
+#include <event.h>
 #include <i2c.h>
 #include <asm/io.h>
 #include <asm/arch/immap_ls102xa.h>
@@ -109,12 +110,14 @@ int board_early_init_f(void)
 	return 0;
 }
 
-int misc_init_f(void)
+static int pg_wcom_misc_init_f(void *ctx, struct event *event)
 {
 	if (IS_ENABLED(CONFIG_PG_WCOM_UBOOT_UPDATE_SUPPORTED))
 		check_for_uboot_update();
+
 	return 0;
 }
+EVENT_SPY(EVT_MISC_INIT_F, pg_wcom_misc_init_f);
 
 int board_init(void)
 {

common/Kconfig

@@ -589,12 +589,6 @@ config LAST_STAGE_INIT
 	  U-Boot calls last_stage_init() before the command-line interpreter is
 	  started.
 
-config MISC_INIT_F
-	bool "Execute pre-relocation misc init"
-	help
-	  Enabling this option calls the 'misc_init_f' function in the init
-	  sequence just before DRAM is inited.
-
 config MISC_INIT_R
 	bool "Execute Misc Init"
 	default y if ARCH_KEYSTONE || ARCH_SUNXI || MPC85xx

common/board_f.c

@@ -818,6 +818,11 @@ __weak int clear_bss(void)
 	return 0;
 }
 
+static int misc_init_f(void)
+{
+	return event_notify_null(EVT_MISC_INIT_F);
+}
+
 static const init_fnc_t init_sequence_f[] = {
 	setup_mon_len,
 #ifdef CONFIG_OF_CONTROL
@@ -877,9 +882,7 @@ static const init_fnc_t init_sequence_f[] = {
 	show_board_info,
 #endif
 	INIT_FUNC_WATCHDOG_INIT
-#if defined(CONFIG_MISC_INIT_F)
 	misc_init_f,
-#endif
 	INIT_FUNC_WATCHDOG_RESET
 #if CONFIG_IS_ENABLED(SYS_I2C_LEGACY)
 	init_func_i2c,

common/event.c

@@ -30,6 +30,9 @@ const char *const type_name[] = {
 	"dm_post_probe",
 	"dm_pre_remove",
 	"dm_post_remove",
+
+	/* init hooks */
+	"misc_init_f",
 };
 
 _Static_assert(ARRAY_SIZE(type_name) == EVT_COUNT, "event type_name size");

configs/chromebook_coral_defconfig

@@ -35,6 +35,7 @@ CONFIG_USE_BOOTCOMMAND=y
 CONFIG_BOOTCOMMAND="tpm init; tpm startup TPM2_SU_CLEAR; read mmc 0:2 100000 0 80; setexpr loader *001004f0; setexpr size *00100518; setexpr blocks $size / 200; read mmc 0:2 100000 80 $blocks; setexpr setup $loader - 1000; setexpr cmdline_ptr $loader - 2000; setexpr.s cmdline *$cmdline_ptr; setexpr cmdline gsub %U \\\\${uuid}; if part uuid mmc 0:2 uuid; then zboot start 100000 0 0 0 $setup cmdline; zboot load; zboot setup; zboot dump; zboot go;fi"
 CONFIG_SYS_CONSOLE_INFO_QUIET=y
 CONFIG_DISPLAY_BOARDINFO_LATE=y
+CONFIG_EVENT=y
 CONFIG_LAST_STAGE_INIT=y
 CONFIG_BLOBLIST=y
 # CONFIG_TPL_BLOBLIST is not set

configs/kmcent2_defconfig

@@ -16,10 +16,10 @@ CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
+CONFIG_EVENT=y
 CONFIG_BOARD_EARLY_INIT_F=y
 CONFIG_BOARD_EARLY_INIT_R=y
 CONFIG_LAST_STAGE_INIT=y
-CONFIG_MISC_INIT_F=y
 CONFIG_HUSH_PARSER=y
 CONFIG_CMD_DM=y
 CONFIG_CMD_I2C=y

configs/pg_wcom_expu1_defconfig

@@ -35,6 +35,7 @@ CONFIG_AUTOBOOT_STOP_STR=" "
 CONFIG_USE_BOOTARGS=y
 CONFIG_BOOTARGS="console=ttyS0,115200 root=/dev/ram0"
 CONFIG_SILENT_CONSOLE=y
+CONFIG_EVENT=y
 CONFIG_LAST_STAGE_INIT=y
 CONFIG_MISC_INIT_R=y
 CONFIG_CMD_IMLS=y

configs/pg_wcom_expu1_update_defconfig

@@ -33,6 +33,7 @@ CONFIG_AUTOBOOT_STOP_STR=" "
 CONFIG_USE_BOOTARGS=y
 CONFIG_BOOTARGS="console=ttyS0,115200 root=/dev/ram0"
 CONFIG_SILENT_CONSOLE=y
+CONFIG_EVENT=y
 CONFIG_LAST_STAGE_INIT=y
 CONFIG_MISC_INIT_R=y
 CONFIG_CMD_IMLS=y

configs/pg_wcom_seli8_defconfig

@@ -35,6 +35,7 @@ CONFIG_AUTOBOOT_STOP_STR=" "
 CONFIG_USE_BOOTARGS=y
 CONFIG_BOOTARGS="console=ttyS0,115200 root=/dev/ram0"
 CONFIG_SILENT_CONSOLE=y
+CONFIG_EVENT=y
 CONFIG_LAST_STAGE_INIT=y
 CONFIG_MISC_INIT_R=y
 CONFIG_CMD_IMLS=y

configs/pg_wcom_seli8_update_defconfig

@@ -33,6 +33,7 @@ CONFIG_AUTOBOOT_STOP_STR=" "
 CONFIG_USE_BOOTARGS=y
 CONFIG_BOOTARGS="console=ttyS0,115200 root=/dev/ram0"
 CONFIG_SILENT_CONSOLE=y
+CONFIG_EVENT=y
 CONFIG_LAST_STAGE_INIT=y
 CONFIG_MISC_INIT_R=y
 CONFIG_CMD_IMLS=y

configs/sandbox64_defconfig

@@ -23,7 +23,6 @@ CONFIG_CONSOLE_RECORD=y
 CONFIG_CONSOLE_RECORD_OUT_SIZE=0x1000
 CONFIG_PRE_CONSOLE_BUFFER=y
 CONFIG_DISPLAY_BOARDINFO_LATE=y
-CONFIG_MISC_INIT_F=y
 CONFIG_CMD_CPU=y
 CONFIG_CMD_LICENSE=y
 CONFIG_CMD_BOOTZ=y

configs/sandbox_defconfig

@@ -32,7 +32,6 @@ CONFIG_CONSOLE_RECORD_OUT_SIZE=0x1000
 CONFIG_PRE_CONSOLE_BUFFER=y
 CONFIG_LOG=y
 CONFIG_DISPLAY_BOARDINFO_LATE=y
-CONFIG_MISC_INIT_F=y
 CONFIG_STACKPROTECTOR=y
 CONFIG_ANDROID_AB=y
 CONFIG_CMD_CPU=y

configs/sandbox_flattree_defconfig

@@ -20,7 +20,6 @@ CONFIG_BOOTSTAGE_STASH_SIZE=0x4096
 CONFIG_CONSOLE_RECORD=y
 CONFIG_CONSOLE_RECORD_OUT_SIZE=0x1000
 CONFIG_DISPLAY_BOARDINFO_LATE=y
-CONFIG_MISC_INIT_F=y
 CONFIG_CMD_CPU=y
 CONFIG_CMD_LICENSE=y
 CONFIG_CMD_BOOTZ=y

configs/sandbox_spl_defconfig

@@ -30,7 +30,6 @@ CONFIG_BOOTSTAGE_STASH_SIZE=0x4096
 CONFIG_CONSOLE_RECORD=y
 CONFIG_CONSOLE_RECORD_OUT_SIZE=0x1000
 CONFIG_DISPLAY_BOARDINFO_LATE=y
-CONFIG_MISC_INIT_F=y
 CONFIG_HANDOFF=y
 CONFIG_SPL_BOARD_INIT=y
 CONFIG_SPL_ENV_SUPPORT=y

configs/tools-only_defconfig

@@ -9,7 +9,6 @@ CONFIG_TIMESTAMP=y
 CONFIG_FIT_SIGNATURE=y
 CONFIG_USE_BOOTCOMMAND=y
 CONFIG_BOOTCOMMAND="run distro_bootcmd"
-CONFIG_MISC_INIT_F=y
 # CONFIG_CMD_BOOTD is not set
 # CONFIG_CMD_BOOTM is not set
 # CONFIG_CMD_ELF is not set

include/configs/km/pg-wcom-ls102xa.h

@@ -272,6 +272,4 @@
 #define CONFIG_SYS_BOOTM_LEN	(64 << 20) /* Increase max gunzip size */
 #define CONFIG_SYS_BOOTMAPSZ	(256 << 20) /* Increase map for Linux */
 
-#define CONFIG_MISC_INIT_F
-
 #endif

include/event.h

@@ -25,6 +25,9 @@ enum event_t {
 	EVT_DM_PRE_REMOVE,
 	EVT_DM_POST_REMOVE,
 
+	/* Init hooks */
+	EVT_MISC_INIT_F,
+
 	EVT_COUNT
 };
 

include/init.h

@@ -217,7 +217,6 @@ int init_cache_f_r(void);
 int print_cpuinfo(void);
 #endif
 int timer_init(void);
-int misc_init_f(void);
 
 #if defined(CONFIG_DTB_RESELECT)
 int embedded_dtb_select(void);