global: Convert simple_strtoul() with hex to hextoul()

It is a pain to have to specify the value 16 in each call. Add a new
hextoul() function and update the code to use it.

Add a proper comment to simple_strtoul() while we are here.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/board/BuS/eb_cpu5282/eb_cpu5282.c b/board/BuS/eb_cpu5282/eb_cpu5282.c
index 144a089..5829299 100644
--- a/board/BuS/eb_cpu5282/eb_cpu5282.c
+++ b/board/BuS/eb_cpu5282/eb_cpu5282.c
@@ -214,7 +214,7 @@
 #ifdef CONFIG_SPLASH_SCREEN
 	s = env_get("splashimage");
 	if (s != NULL) {
-		splash = simple_strtoul(s, NULL, 16);
+		splash = hextoul(s, NULL);
 		vcxk_acknowledge_wait();
 		video_display_bitmap(splash, 0, 0);
 	}
diff --git a/board/Marvell/octeontx2/board.c b/board/Marvell/octeontx2/board.c
index 9b973a4..4e8cb83 100644
--- a/board/Marvell/octeontx2/board.c
+++ b/board/Marvell/octeontx2/board.c
@@ -230,7 +230,7 @@
 	if (argc < 2)
 		return CMD_RET_USAGE;
 
-	addr = simple_strtoul(argv[1], NULL, 16);
+	addr = hextoul(argv[1], NULL);
 	fdt = board_fdt_blob_setup();
 	entry = (uboot_entry_t)addr;
 	flush_cache((ulong)addr, 1 << 20);	/* 1MiB should be enough */
diff --git a/board/amlogic/beelink-s922x/beelink-s922x.c b/board/amlogic/beelink-s922x/beelink-s922x.c
index bb74426..adae27f 100644
--- a/board/amlogic/beelink-s922x/beelink-s922x.c
+++ b/board/amlogic/beelink-s922x/beelink-s922x.c
@@ -39,7 +39,7 @@
 			tmp[0] = efuse_mac_addr[i * 2];
 			tmp[1] = efuse_mac_addr[i * 2 + 1];
 			tmp[2] = '\0';
-			mac_addr[i] = simple_strtoul(tmp, NULL, 16);
+			mac_addr[i] = hextoul(tmp, NULL);
 		}
 
 		if (is_valid_ethaddr(mac_addr))
diff --git a/board/amlogic/odroid-n2/odroid-n2.c b/board/amlogic/odroid-n2/odroid-n2.c
index 88a60f3..c37ea65 100644
--- a/board/amlogic/odroid-n2/odroid-n2.c
+++ b/board/amlogic/odroid-n2/odroid-n2.c
@@ -126,7 +126,7 @@
 			tmp[0] = efuse_mac_addr[i * 2];
 			tmp[1] = efuse_mac_addr[i * 2 + 1];
 			tmp[2] = '\0';
-			mac_addr[i] = simple_strtoul(tmp, NULL, 16);
+			mac_addr[i] = hextoul(tmp, NULL);
 		}
 
 		if (is_valid_ethaddr(mac_addr))
diff --git a/board/amlogic/vim3/vim3.c b/board/amlogic/vim3/vim3.c
index 18ef146..5d9ac64 100644
--- a/board/amlogic/vim3/vim3.c
+++ b/board/amlogic/vim3/vim3.c
@@ -166,7 +166,7 @@
 			tmp[0] = efuse_mac_addr[i * 2];
 			tmp[1] = efuse_mac_addr[i * 2 + 1];
 			tmp[2] = '\0';
-			mac_addr[i] = simple_strtoul(tmp, NULL, 16);
+			mac_addr[i] = hextoul(tmp, NULL);
 		}
 
 		if (is_valid_ethaddr(mac_addr))
diff --git a/board/bluewater/gurnard/gurnard.c b/board/bluewater/gurnard/gurnard.c
index e217b95..35c8985 100644
--- a/board/bluewater/gurnard/gurnard.c
+++ b/board/bluewater/gurnard/gurnard.c
@@ -376,7 +376,7 @@
 		/* Parse MAC address */
 		for (i = 0; i < 6; i++) {
 			env_enetaddr[i] = env_str ?
-				simple_strtoul(env_str, &end, 16) : 0;
+				hextoul(env_str, &end) : 0;
 			if (env_str)
 				env_str = (*end) ? end+1 : end;
 		}
diff --git a/board/cavium/thunderx/atf.c b/board/cavium/thunderx/atf.c
index 64aa198..582af6f 100644
--- a/board/cavium/thunderx/atf.c
+++ b/board/cavium/thunderx/atf.c
@@ -235,25 +235,25 @@
 	char str[4 * sizeof(uint64_t)];
 
 	if ((argc == 5) && !strcmp(argv[1], "readmmc")) {
-		buffer = (void *)simple_strtoul(argv[2], NULL, 16);
+		buffer = (void *)hextoul(argv[2], NULL);
 		offset = simple_strtoul(argv[3], NULL, 10);
 		size = simple_strtoul(argv[4], NULL, 10);
 
 		ret = atf_read_mmc(offset, buffer, size);
 	} else if ((argc == 5) && !strcmp(argv[1], "readnor")) {
-		buffer = (void *)simple_strtoul(argv[2], NULL, 16);
+		buffer = (void *)hextoul(argv[2], NULL);
 		offset = simple_strtoul(argv[3], NULL, 10);
 		size = simple_strtoul(argv[4], NULL, 10);
 
 		ret = atf_read_nor(offset, buffer, size);
 	} else if ((argc == 5) && !strcmp(argv[1], "writemmc")) {
-		buffer = (void *)simple_strtoul(argv[2], NULL, 16);
+		buffer = (void *)hextoul(argv[2], NULL);
 		offset = simple_strtoul(argv[3], NULL, 10);
 		size = simple_strtoul(argv[4], NULL, 10);
 
 		ret = atf_write_mmc(offset, buffer, size);
 	} else if ((argc == 5) && !strcmp(argv[1], "writenor")) {
-		buffer = (void *)simple_strtoul(argv[2], NULL, 16);
+		buffer = (void *)hextoul(argv[2], NULL);
 		offset = simple_strtoul(argv[3], NULL, 10);
 		size = simple_strtoul(argv[4], NULL, 10);
 
diff --git a/board/esd/meesc/meesc.c b/board/esd/meesc/meesc.c
index eaa525e..a3eee63 100644
--- a/board/esd/meesc/meesc.c
+++ b/board/esd/meesc/meesc.c
@@ -208,7 +208,7 @@
 		str = strchr(serial, '_');
 		if (str && (strlen(str) >= 4)) {
 			serialnr->high = (*(str + 1) << 8) | *(str + 2);
-			serialnr->low = simple_strtoul(str + 3, NULL, 16);
+			serialnr->low = hextoul(str + 3, NULL);
 		}
 	} else {
 		serialnr->high = 0;
diff --git a/board/freescale/common/cmd_esbc_validate.c b/board/freescale/common/cmd_esbc_validate.c
index 638aa3c..6c09626 100644
--- a/board/freescale/common/cmd_esbc_validate.c
+++ b/board/freescale/common/cmd_esbc_validate.c
@@ -40,7 +40,7 @@
 		hash_str = argv[2];
 
 	/* First argument - header address -32/64bit */
-	haddr = (uintptr_t)simple_strtoul(argv[1], NULL, 16);
+	haddr = (uintptr_t)hextoul(argv[1], NULL);
 
 	/* With esbc_validate command, Image address must be
 	 * part of header. So, the function is called
diff --git a/board/freescale/common/fsl_validate.c b/board/freescale/common/fsl_validate.c
index 564a8b3..066aa9a 100644
--- a/board/freescale/common/fsl_validate.c
+++ b/board/freescale/common/fsl_validate.c
@@ -767,7 +767,7 @@
 	if (!p) {
 		return 0;
 	} else {
-		tmp = simple_strtoul(p, &endptr, 16);
+		tmp = hextoul(p, &endptr);
 		if (sizeof(ulong) == 4)
 			*num = cpu_to_be32(tmp);
 		else
diff --git a/board/freescale/common/sys_eeprom.c b/board/freescale/common/sys_eeprom.c
index be0fda0..9e73056 100644
--- a/board/freescale/common/sys_eeprom.c
+++ b/board/freescale/common/sys_eeprom.c
@@ -378,7 +378,7 @@
 	}
 
 	for (i = 0; *p && (i < 6); i++) {
-		e.mac[index][i] = simple_strtoul(p, &p, 16);
+		e.mac[index][i] = hextoul(p, &p);
 		if (*p == ':')
 			p++;
 	}
@@ -452,7 +452,7 @@
 		set_date(argv[2]);
 		break;
 	case 'p':	/* MAC table size */
-		e.mac_count = simple_strtoul(argv[2], NULL, 16);
+		e.mac_count = hextoul(argv[2], NULL);
 		update_crc();
 		break;
 	case '0' ... '9':	/* "mac 0" through "mac 22" */
diff --git a/board/freescale/lx2160a/eth_lx2160aqds.c b/board/freescale/lx2160a/eth_lx2160aqds.c
index 437f0bc..a2b6442 100644
--- a/board/freescale/lx2160a/eth_lx2160aqds.c
+++ b/board/freescale/lx2160a/eth_lx2160aqds.c
@@ -416,7 +416,7 @@
 			       env_dpmac, phy_num + 1, arg_dpmacid);
 		else
 			wriop_set_phy_address(dpmac, phy_num,
-					      simple_strtoul(ret, NULL, 16));
+					      hextoul(ret, NULL));
 	}
 
 	/*search mdio in dpmac arg*/
diff --git a/board/freescale/lx2160a/eth_lx2162aqds.c b/board/freescale/lx2160a/eth_lx2162aqds.c
index b742c1f..3b04dea 100644
--- a/board/freescale/lx2160a/eth_lx2162aqds.c
+++ b/board/freescale/lx2160a/eth_lx2162aqds.c
@@ -437,7 +437,7 @@
 			       env_dpmac, phy_num + 1, arg_dpmacid);
 		else
 			wriop_set_phy_address(dpmac, phy_num,
-					      simple_strtoul(ret, NULL, 16));
+					      hextoul(ret, NULL));
 	}
 
 	/*search mdio in dpmac arg*/
diff --git a/board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c b/board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c
index 8273384..cf4d9c1 100644
--- a/board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c
+++ b/board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c
@@ -281,7 +281,7 @@
 	/* If a VSC7385 microcode image is present, then upload it. */
 	tmp = env_get("vscfw_addr");
 	if (tmp) {
-		vscfw_addr = simple_strtoul(tmp, NULL, 16);
+		vscfw_addr = hextoul(tmp, NULL);
 		printf("uploading VSC7385 microcode from %x\n", vscfw_addr);
 		if (vsc7385_upload_firmware((void *)vscfw_addr,
 					    CONFIG_VSC7385_IMAGE_SIZE))
diff --git a/board/freescale/p2041rdb/cpld.c b/board/freescale/p2041rdb/cpld.c
index b042fe3..a1908b8 100644
--- a/board/freescale/p2041rdb/cpld.c
+++ b/board/freescale/p2041rdb/cpld.c
@@ -100,8 +100,8 @@
 		else
 			cpld_set_defbank();
 	} else if (strcmp(argv[1], "lane_mux") == 0) {
-		u32 lane = simple_strtoul(argv[2], NULL, 16);
-		u8 val = (u8)simple_strtoul(argv[3], NULL, 16);
+		u32 lane = hextoul(argv[2], NULL);
+		u8 val = (u8)hextoul(argv[3], NULL);
 		u8 reg = CPLD_READ(serdes_mux);
 
 		switch (lane) {
diff --git a/board/gateworks/gw_ventana/common.c b/board/gateworks/gw_ventana/common.c
index c07eb62..4a15837 100644
--- a/board/gateworks/gw_ventana/common.c
+++ b/board/gateworks/gw_ventana/common.c
@@ -1502,7 +1502,7 @@
 			continue;
 		s = hwconfig_subarg(arg, "padctrl", &len);
 		if (s) {
-			ctrl = MUX_PAD_CTRL(simple_strtoul(s, NULL, 16)
+			ctrl = MUX_PAD_CTRL(hextoul(s, NULL)
 					    & 0x1ffff) | MUX_MODE_SION;
 		}
 		if (hwconfig_subarg_cmp(arg, "mode", "gpio")) {
diff --git a/board/gateworks/gw_ventana/gw_ventana.c b/board/gateworks/gw_ventana/gw_ventana.c
index 468fb09..6a0382d 100644
--- a/board/gateworks/gw_ventana/gw_ventana.c
+++ b/board/gateworks/gw_ventana/gw_ventana.c
@@ -915,7 +915,7 @@
 	if (tmp) {
 		for (j = 0; j < 6; j++) {
 			mac_addr[j] = tmp ?
-				      simple_strtoul(tmp, &end,16) : 0;
+				      hextoul(tmp, &end) : 0;
 			if (tmp)
 				tmp = (*end) ? end+1 : end;
 		}
diff --git a/board/gdsys/common/osd.c b/board/gdsys/common/osd.c
index 679f8f3..dc548ef 100644
--- a/board/gdsys/common/osd.c
+++ b/board/gdsys/common/osd.c
@@ -284,9 +284,9 @@
 		if (!(osd_screen_mask & (1 << screen)))
 			continue;
 
-		x = simple_strtoul(argv[1], NULL, 16);
-		y = simple_strtoul(argv[2], NULL, 16);
-		color = simple_strtoul(argv[3], NULL, 16);
+		x = hextoul(argv[1], NULL);
+		y = hextoul(argv[2], NULL);
+		color = hextoul(argv[3], NULL);
 		text = argv[4];
 		charcount = strlen(text);
 		len = (charcount > bufsize) ? bufsize : charcount;
@@ -416,13 +416,13 @@
 		char *rp;
 		u16 *wp = buffer;
 		unsigned count = (argc > 4) ?
-			simple_strtoul(argv[4], NULL, 16) : 1;
+			hextoul(argv[4], NULL) : 1;
 
 		if (!(osd_screen_mask & (1 << screen)))
 			continue;
 
-		x = simple_strtoul(argv[1], NULL, 16);
-		y = simple_strtoul(argv[2], NULL, 16);
+		x = hextoul(argv[1], NULL);
+		y = hextoul(argv[2], NULL);
 		rp = argv[3];
 
 
@@ -431,7 +431,7 @@
 
 			memcpy(substr, rp, 4);
 			substr[4] = 0;
-			*wp = simple_strtoul(substr, NULL, 16);
+			*wp = hextoul(substr, NULL);
 
 			rp += 4;
 			wp++;
@@ -463,8 +463,8 @@
 		return 1;
 	}
 
-	x = simple_strtoul(argv[1], NULL, 16);
-	y = simple_strtoul(argv[2], NULL, 16);
+	x = hextoul(argv[1], NULL);
+	y = hextoul(argv[2], NULL);
 
 	if (!x || (x > 64) || (x > MAX_X_CHARS) ||
 	    !y || (y > 32) || (y > MAX_Y_CHARS)) {
diff --git a/board/gdsys/common/osd_cmd.c b/board/gdsys/common/osd_cmd.c
index fe62497..6a9c0b4 100644
--- a/board/gdsys/common/osd_cmd.c
+++ b/board/gdsys/common/osd_cmd.c
@@ -30,10 +30,10 @@
 	if (argc < 4 || (strlen(argv[3])) % 2)
 		return CMD_RET_USAGE;
 
-	x = simple_strtoul(argv[1], NULL, 16);
-	y = simple_strtoul(argv[2], NULL, 16);
+	x = hextoul(argv[1], NULL);
+	y = hextoul(argv[2], NULL);
 	hexstr = argv[3];
-	count = (argc > 4) ? simple_strtoul(argv[4], NULL, 16) : 1;
+	count = (argc > 4) ? hextoul(argv[4], NULL) : 1;
 
 	buflen = strlen(hexstr) / 2;
 
@@ -80,9 +80,9 @@
 	if (argc < 5)
 		return CMD_RET_USAGE;
 
-	x = simple_strtoul(argv[1], NULL, 16);
-	y = simple_strtoul(argv[2], NULL, 16);
-	color = simple_strtoul(argv[3], NULL, 16);
+	x = hextoul(argv[1], NULL);
+	y = hextoul(argv[2], NULL);
+	color = hextoul(argv[3], NULL);
 	text = argv[4];
 
 	for (uclass_first_device(UCLASS_VIDEO_OSD, &dev);
@@ -109,8 +109,8 @@
 	if (argc < 3)
 		return CMD_RET_USAGE;
 
-	x = simple_strtoul(argv[1], NULL, 16);
-	y = simple_strtoul(argv[2], NULL, 16);
+	x = hextoul(argv[1], NULL);
+	y = hextoul(argv[2], NULL);
 
 	for (uclass_first_device(UCLASS_VIDEO_OSD, &dev);
 	     dev;
diff --git a/board/keymile/common/common.c b/board/keymile/common/common.c
index 016806a..ff07260 100644
--- a/board/keymile/common/common.c
+++ b/board/keymile/common/common.c
@@ -278,7 +278,7 @@
 				 * use simple_strtoul because we need &end and
 				 * we know we got non numeric char at the end
 				 */
-				bid = simple_strtoul(rest, &endp, 16);
+				bid = hextoul(rest, &endp);
 				/* BoardId and HWkey are separated with a "_" */
 				if (*endp == '_') {
 					rest  = endp + 1;
@@ -286,7 +286,7 @@
 					 * use simple_strtoul because we need
 					 * &end
 					 */
-					hwkey = simple_strtoul(rest, &endp, 16);
+					hwkey = hextoul(rest, &endp);
 					rest  = endp;
 					while (*rest && !isxdigit(*rest))
 						rest++;
diff --git a/board/kontron/sl28/cmds.c b/board/kontron/sl28/cmds.c
index 046d3b4..08a22b5 100644
--- a/board/kontron/sl28/cmds.c
+++ b/board/kontron/sl28/cmds.c
@@ -138,7 +138,7 @@
 		return CMD_RET_FAILURE;
 
 	if (argc > 1) {
-		nvm = simple_strtoul(argv[1], &endp, 16);
+		nvm = hextoul(argv[1], &endp);
 		if (*endp != '\0') {
 			printf("ERROR: argument is not a valid number\n");
 			ret = -EINVAL;
diff --git a/board/menlo/m53menlo/m53menlo.c b/board/menlo/m53menlo/m53menlo.c
index c34baca..2b331b3 100644
--- a/board/menlo/m53menlo/m53menlo.c
+++ b/board/menlo/m53menlo/m53menlo.c
@@ -347,7 +347,7 @@
 	if (!s)
 		return 0;
 
-	addr = simple_strtoul(s, NULL, 16);
+	addr = hextoul(s, NULL);
 	dst = malloc(CONFIG_SYS_VIDEO_LOGO_MAX_SIZE);
 	if (!dst)
 		return -ENOMEM;
diff --git a/board/renesas/stout/cpld.c b/board/renesas/stout/cpld.c
index ac8048c..b7c75f5 100644
--- a/board/renesas/stout/cpld.c
+++ b/board/renesas/stout/cpld.c
@@ -133,7 +133,7 @@
 	if (argc < 3)
 		return CMD_RET_USAGE;
 
-	addr = simple_strtoul(argv[2], NULL, 16);
+	addr = hextoul(argv[2], NULL);
 	if (!(addr == CPLD_ADDR_VERSION || addr == CPLD_ADDR_MODE ||
 	      addr == CPLD_ADDR_MUX || addr == CPLD_ADDR_HDMI ||
 	      addr == CPLD_ADDR_DIPSW || addr == CPLD_ADDR_RESET)) {
@@ -144,7 +144,7 @@
 	if (argc == 3 && strcmp(argv[1], "read") == 0) {
 		printf("0x%x\n", cpld_read(addr));
 	} else if (argc == 4 && strcmp(argv[1], "write") == 0) {
-		val = simple_strtoul(argv[3], NULL, 16);
+		val = hextoul(argv[3], NULL);
 		if (addr == CPLD_ADDR_MUX) {
 			/* never mask SCIFA0 console */
 			val &= ~MUX_MSK_SCIFA0_USB;
diff --git a/board/renesas/ulcb/cpld.c b/board/renesas/ulcb/cpld.c
index ebb2d6f..0c060a5 100644
--- a/board/renesas/ulcb/cpld.c
+++ b/board/renesas/ulcb/cpld.c
@@ -111,7 +111,7 @@
 	if (argc < 3)
 		return CMD_RET_USAGE;
 
-	addr = simple_strtoul(argv[2], NULL, 16);
+	addr = hextoul(argv[2], NULL);
 	if (!(addr == CPLD_ADDR_VERSION || addr == CPLD_ADDR_MODE ||
 	      addr == CPLD_ADDR_MUX || addr == CPLD_ADDR_DIPSW6 ||
 	      addr == CPLD_ADDR_RESET)) {
@@ -122,7 +122,7 @@
 	if (argc == 3 && strcmp(argv[1], "read") == 0) {
 		printf("0x%x\n", cpld_read(dev, addr));
 	} else if (argc == 4 && strcmp(argv[1], "write") == 0) {
-		val = simple_strtoul(argv[3], NULL, 16);
+		val = hextoul(argv[3], NULL);
 		cpld_write(dev, addr, val);
 	}
 
diff --git a/board/siemens/common/factoryset.c b/board/siemens/common/factoryset.c
index 2e3ae1a..fba678b 100644
--- a/board/siemens/common/factoryset.c
+++ b/board/siemens/common/factoryset.c
@@ -243,7 +243,7 @@
 			       buf, MAX_STRING_LENGTH);
 	cp1 = buf;
 	for (i = 0; i < 6; i++) {
-		factory_dat.mac[i] = simple_strtoul((char *)cp1, NULL, 16);
+		factory_dat.mac[i] = hextoul((char *)cp1, NULL);
 		cp1 += 3;
 	}
 
@@ -254,8 +254,7 @@
 	if (ret > 0) {
 		cp1 = buf;
 		for (i = 0; i < 6; i++) {
-			factory_dat.mac_wlan[i] = simple_strtoul((char *)cp1,
-								 NULL, 16);
+			factory_dat.mac_wlan[i] = hextoul((char *)cp1, NULL);
 			cp1 += 3;
 		}
 	}
@@ -266,15 +265,13 @@
 	if (0 <= get_factory_record_val(cp, size, (uchar *)"USBD1",
 					(uchar *)"vid", buf,
 					MAX_STRING_LENGTH)) {
-		factory_dat.usb_vendor_id = simple_strtoul((char *)buf,
-							   NULL, 16);
+		factory_dat.usb_vendor_id = hextoul((char *)buf, NULL);
 	}
 
 	if (0 <= get_factory_record_val(cp, size, (uchar *)"USBD1",
 					(uchar *)"pid", buf,
 					MAX_STRING_LENGTH)) {
-		factory_dat.usb_product_id = simple_strtoul((char *)buf,
-							    NULL, 16);
+		factory_dat.usb_product_id = hextoul((char *)buf, NULL);
 	}
 	printf("DFU USB: VID = 0x%4x, PID = 0x%4x\n", factory_dat.usb_vendor_id,
 	       factory_dat.usb_product_id);
@@ -294,8 +291,7 @@
 	if (0 <= get_factory_record_val(cp, size, (uchar *)"DEV",
 					(uchar *)"ver", buf,
 					MAX_STRING_LENGTH)) {
-		factory_dat.version = simple_strtoul((char *)buf,
-							    NULL, 16);
+		factory_dat.version = hextoul((char *)buf, NULL);
 		debug("version number: %d\n", factory_dat.version);
 	}
 	/* Get ASN from factory set if available */
diff --git a/board/sifive/unmatched/hifive-platform-i2c-eeprom.c b/board/sifive/unmatched/hifive-platform-i2c-eeprom.c
index ad2f315..b230a71 100644
--- a/board/sifive/unmatched/hifive-platform-i2c-eeprom.c
+++ b/board/sifive/unmatched/hifive-platform-i2c-eeprom.c
@@ -281,7 +281,7 @@
 	}
 
 	for (i = 0; *string && (i < MAC_ADDR_BYTES); i++) {
-		e.mac_addr[i] = simple_strtoul(string, &string, 16);
+		e.mac_addr[i] = hextoul(string, &string);
 		if (*string == ':')
 			string++;
 	}
diff --git a/board/synopsys/hsdk/env-lib.c b/board/synopsys/hsdk/env-lib.c
index 235f295..e225838 100644
--- a/board/synopsys/hsdk/env-lib.c
+++ b/board/synopsys/hsdk/env-lib.c
@@ -252,7 +252,7 @@
 	char *endp = argv[1];
 
 	if (map[i].type == ENV_HEX)
-		map[i].val->val = simple_strtoul(argv[1], &endp, 16);
+		map[i].val->val = hextoul(argv[1], &endp);
 	else
 		map[i].val->val = simple_strtoul(argv[1], &endp, 10);
 
diff --git a/board/ti/am64x/evm.c b/board/ti/am64x/evm.c
index cdbb9a8..21c58c7 100644
--- a/board/ti/am64x/evm.c
+++ b/board/ti/am64x/evm.c
@@ -120,7 +120,7 @@
 	if (env_get("serial#"))
 		return;
 
-	board_serial = simple_strtoul(ep->serial, &endp, 16);
+	board_serial = hextoul(ep->serial, &endp);
 	if (*endp != '\0') {
 		pr_err("Error: Can't set serial# to %s\n", ep->serial);
 		return;
diff --git a/board/ti/j721e/evm.c b/board/ti/j721e/evm.c
index 580f13c..077d834 100644
--- a/board/ti/j721e/evm.c
+++ b/board/ti/j721e/evm.c
@@ -201,7 +201,7 @@
 	if (env_get("serial#"))
 		return;
 
-	board_serial = simple_strtoul(ep->serial, &endp, 16);
+	board_serial = hextoul(ep->serial, &endp);
 	if (*endp != '\0') {
 		pr_err("Error: Can't set serial# to %s\n", ep->serial);
 		return;
diff --git a/board/varisys/common/sys_eeprom.c b/board/varisys/common/sys_eeprom.c
index 251d9fd..1bf5436 100644
--- a/board/varisys/common/sys_eeprom.c
+++ b/board/varisys/common/sys_eeprom.c
@@ -299,7 +299,7 @@
 	}
 
 	for (i = 0; *p && (i < 6); i++) {
-		e.mac[index][i] = simple_strtoul(p, &p, 16);
+		e.mac[index][i] = hextoul(p, &p);
 		if (*p == ':')
 			p++;
 	}
@@ -364,7 +364,7 @@
 		set_date(argv[2]);
 		break;
 	case 'p':	/* MAC table size */
-		e.mac_count = simple_strtoul(argv[2], NULL, 16);
+		e.mac_count = hextoul(argv[2], NULL);
 		update_crc();
 		break;
 	case '0' ... '9':	/* "mac 0" through "mac 22" */
diff --git a/board/xilinx/common/fru.c b/board/xilinx/common/fru.c
index ccf4872..f6ca46c 100644
--- a/board/xilinx/common/fru.c
+++ b/board/xilinx/common/fru.c
@@ -19,7 +19,7 @@
 	if (argc < cmdtp->maxargs)
 		return CMD_RET_USAGE;
 
-	addr = simple_strtoul(argv[2], &endp, 16);
+	addr = hextoul(argv[2], &endp);
 	if (*argv[1] == 0 || *endp != 0)
 		return -1;
 
@@ -41,7 +41,7 @@
 	if (argc < cmdtp->maxargs)
 		return CMD_RET_USAGE;
 
-	addr = simple_strtoul(argv[2], NULL, 16);
+	addr = hextoul(argv[2], NULL);
 
 	return fru_generate(addr, argv[3], argv[4], argv[5], argv[6], argv[7]);
 }
diff --git a/board/xilinx/versal/cmds.c b/board/xilinx/versal/cmds.c
index f5735d0..04d4cdb 100644
--- a/board/xilinx/versal/cmds.c
+++ b/board/xilinx/versal/cmds.c
@@ -32,7 +32,7 @@
 		return CMD_RET_USAGE;
 	}
 
-	len = simple_strtoul(argv[3], NULL, 16);
+	len = hextoul(argv[3], NULL);
 	if (!len) {
 		debug("pdi_load: zero size\n");
 		return CMD_RET_USAGE;
diff --git a/board/xilinx/zynq/cmds.c b/board/xilinx/zynq/cmds.c
index 6c697ca..024fac6 100644
--- a/board/xilinx/zynq/cmds.c
+++ b/board/xilinx/zynq/cmds.c
@@ -422,7 +422,7 @@
 	if (argc != cmdtp->maxargs)
 		return CMD_RET_FAILURE;
 
-	src_ptr = simple_strtoul(argv[2], &endp, 16);
+	src_ptr = hextoul(argv[2], &endp);
 	if (*argv[2] == 0 || *endp != 0)
 		return CMD_RET_USAGE;
 
@@ -453,26 +453,26 @@
 		else
 			return CMD_RET_USAGE;
 
-		srcaddr = simple_strtoul(argv[3], &endp, 16);
+		srcaddr = hextoul(argv[3], &endp);
 		if (*argv[3] == 0 || *endp != 0)
 			return CMD_RET_USAGE;
-		srclen = simple_strtoul(argv[4], &endp, 16);
+		srclen = hextoul(argv[4], &endp);
 		if (*argv[4] == 0 || *endp != 0)
 			return CMD_RET_USAGE;
 
 		dstaddr = 0xFFFFFFFF;
 		dstlen = srclen;
 	} else {
-		srcaddr = simple_strtoul(argv[2], &endp, 16);
+		srcaddr = hextoul(argv[2], &endp);
 		if (*argv[2] == 0 || *endp != 0)
 			return CMD_RET_USAGE;
-		srclen = simple_strtoul(argv[3], &endp, 16);
+		srclen = hextoul(argv[3], &endp);
 		if (*argv[3] == 0 || *endp != 0)
 			return CMD_RET_USAGE;
-		dstaddr = simple_strtoul(argv[4], &endp, 16);
+		dstaddr = hextoul(argv[4], &endp);
 		if (*argv[4] == 0 || *endp != 0)
 			return CMD_RET_USAGE;
-		dstlen = simple_strtoul(argv[5], &endp, 16);
+		dstlen = hextoul(argv[5], &endp);
 		if (*argv[5] == 0 || *endp != 0)
 			return CMD_RET_USAGE;
 	}
diff --git a/board/xilinx/zynqmp/cmds.c b/board/xilinx/zynqmp/cmds.c
index cf63ad9..b15c0f5 100644
--- a/board/xilinx/zynqmp/cmds.c
+++ b/board/xilinx/zynqmp/cmds.c
@@ -40,7 +40,7 @@
 		return CMD_RET_USAGE;
 
 	src_addr = simple_strtoull(argv[2], NULL, 16);
-	len = simple_strtoul(argv[3], NULL, 16);
+	len = hextoul(argv[3], NULL);
 
 	if (argc == 5)
 		key_ptr = (uint8_t *)(uintptr_t)simple_strtoull(argv[4],
@@ -86,7 +86,7 @@
 	if (argc != cmdtp->maxargs)
 		return CMD_RET_USAGE;
 
-	addr = simple_strtoul(argv[2], NULL, 16);
+	addr = hextoul(argv[2], NULL);
 
 	ret = zynqmp_mmio_read(addr, &read_val);
 	if (!ret)
@@ -107,9 +107,9 @@
 	if (argc != cmdtp->maxargs)
 		return CMD_RET_USAGE;
 
-	addr = simple_strtoul(argv[2], NULL, 16);
-	mask = simple_strtoul(argv[3], NULL, 16);
-	val = simple_strtoul(argv[4], NULL, 16);
+	addr = hextoul(argv[2], NULL);
+	mask = hextoul(argv[3], NULL);
+	val = hextoul(argv[4], NULL);
 
 	ret = zynqmp_mmio_write(addr, mask, val);
 	if (ret != 0)
@@ -135,12 +135,12 @@
 	if (argc < cmdtp->maxargs - 1)
 		return CMD_RET_USAGE;
 
-	aes->srcaddr = simple_strtoul(argv[2], NULL, 16);
-	aes->ivaddr = simple_strtoul(argv[3], NULL, 16);
-	aes->len = simple_strtoul(argv[4], NULL, 16);
-	aes->op = simple_strtoul(argv[5], NULL, 16);
-	aes->keysrc = simple_strtoul(argv[6], NULL, 16);
-	aes->dstaddr = simple_strtoul(argv[7], NULL, 16);
+	aes->srcaddr = hextoul(argv[2], NULL);
+	aes->ivaddr = hextoul(argv[3], NULL);
+	aes->len = hextoul(argv[4], NULL);
+	aes->op = hextoul(argv[5], NULL);
+	aes->keysrc = hextoul(argv[6], NULL);
+	aes->dstaddr = hextoul(argv[7], NULL);
 
 	flush_dcache_range((ulong)aes, (ulong)(aes) +
 			   roundup(sizeof(struct aes), ARCH_DMA_MINALIGN));
@@ -161,7 +161,7 @@
 		if (argc < cmdtp->maxargs)
 			return CMD_RET_USAGE;
 
-		aes->keyaddr = simple_strtoul(argv[8], NULL, 16);
+		aes->keyaddr = hextoul(argv[8], NULL);
 		if (aes->keyaddr)
 			flush_dcache_range(aes->keyaddr,
 					   (aes->keyaddr +
@@ -187,7 +187,7 @@
 	if (argc != cmdtp->maxargs)
 		return CMD_RET_USAGE;
 
-	mode = simple_strtoul(argv[2], NULL, 16);
+	mode = hextoul(argv[2], NULL);
 	if (mode != TCM_LOCK && mode != TCM_SPLIT) {
 		printf("Mode should be either 0(lock)/1(split)\n");
 		return CMD_RET_FAILURE;
@@ -209,8 +209,8 @@
 	if (argc != cmdtp->maxargs)
 		return CMD_RET_USAGE;
 
-	addr = simple_strtoul(argv[2], NULL, 16);
-	size = simple_strtoul(argv[3], NULL, 16);
+	addr = hextoul(argv[2], NULL);
+	size = hextoul(argv[3], NULL);
 	flush_dcache_range((ulong)addr, (ulong)(addr + size));
 
 	zynqmp_pmufw_load_config_object((const void *)(uintptr_t)addr,
@@ -236,16 +236,16 @@
 		return CMD_RET_FAILURE;
 	}
 
-	srcaddr = simple_strtoul(argv[2], NULL, 16);
-	srclen = simple_strtoul(argv[3], NULL, 16);
+	srcaddr = hextoul(argv[2], NULL);
+	srclen = hextoul(argv[3], NULL);
 	if (srclen != RSA_KEY_SIZE) {
 		puts("ERR: srclen should be equal to 0x200(512 bytes)\n");
 		return CMD_RET_USAGE;
 	}
 
-	mod = simple_strtoul(argv[4], NULL, 16);
-	exp = simple_strtoul(argv[5], NULL, 16);
-	rsaop = simple_strtoul(argv[6], NULL, 16);
+	mod = hextoul(argv[4], NULL);
+	exp = hextoul(argv[5], NULL);
+	rsaop = hextoul(argv[6], NULL);
 	if (!(rsaop == 0 || rsaop == 1)) {
 		puts("ERR: rsaop should be either 0 or 1\n");
 		return CMD_RET_USAGE;
@@ -299,11 +299,11 @@
 		return CMD_RET_FAILURE;
 	}
 
-	srcaddr = simple_strtoul(argv[2], NULL, 16);
-	srclen = simple_strtoul(argv[3], NULL, 16);
+	srcaddr = hextoul(argv[2], NULL);
+	srclen = hextoul(argv[3], NULL);
 
 	if (argc == 5) {
-		hashaddr = simple_strtoul(argv[4], NULL, 16);
+		hashaddr = hextoul(argv[4], NULL);
 		flush_dcache_range(hashaddr,
 				   hashaddr + roundup(ZYNQMP_SHA3_SIZE,
 						      ARCH_DMA_MINALIGN));