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/arch/arm/mach-imx/cmd_dek.c b/arch/arm/mach-imx/cmd_dek.c
index b10ead1..40df10d 100644
--- a/arch/arm/mach-imx/cmd_dek.c
+++ b/arch/arm/mach-imx/cmd_dek.c
@@ -300,8 +300,8 @@
 	if (argc != 4)
 		return CMD_RET_USAGE;
 
-	src_addr = simple_strtoul(argv[1], NULL, 16);
-	dst_addr = simple_strtoul(argv[2], NULL, 16);
+	src_addr = hextoul(argv[1], NULL);
+	dst_addr = hextoul(argv[2], NULL);
 	len = simple_strtoul(argv[3], NULL, 10);
 
 	return blob_encap_dek(src_addr, dst_addr, len);
diff --git a/arch/arm/mach-imx/cmd_mfgprot.c b/arch/arm/mach-imx/cmd_mfgprot.c
index 1430f61..29074fc 100644
--- a/arch/arm/mach-imx/cmd_mfgprot.c
+++ b/arch/arm/mach-imx/cmd_mfgprot.c
@@ -71,7 +71,7 @@
 		if (argc != 4)
 			return CMD_RET_USAGE;
 
-		m_addr = simple_strtoul(argv[2], NULL, 16);
+		m_addr = hextoul(argv[2], NULL);
 		m_size = simple_strtoul(argv[3], NULL, 10);
 		m_ptr = map_physmem(m_addr, m_size, MAP_NOCACHE);
 		if (!m_ptr)
diff --git a/arch/arm/mach-imx/cmd_nandbcb.c b/arch/arm/mach-imx/cmd_nandbcb.c
index 7157c9e..cd51344 100644
--- a/arch/arm/mach-imx/cmd_nandbcb.c
+++ b/arch/arm/mach-imx/cmd_nandbcb.c
@@ -1083,13 +1083,13 @@
 
 	mtd = cfg.mtd;
 
-	cfg.boot_stream1_address = simple_strtoul(argv[2], NULL, 16);
-	cfg.boot_stream1_size = simple_strtoul(argv[3], NULL, 16);
+	cfg.boot_stream1_address = hextoul(argv[2], NULL);
+	cfg.boot_stream1_size = hextoul(argv[3], NULL);
 	cfg.boot_stream1_size = ALIGN(cfg.boot_stream1_size, mtd->writesize);
 
 	if (argc > 5) {
-		cfg.boot_stream2_address = simple_strtoul(argv[4], NULL, 16);
-		cfg.boot_stream2_size = simple_strtoul(argv[5], NULL, 16);
+		cfg.boot_stream2_address = hextoul(argv[4], NULL);
+		cfg.boot_stream2_size = hextoul(argv[5], NULL);
 		cfg.boot_stream2_size = ALIGN(cfg.boot_stream2_size,
 					      mtd->writesize);
 	}
@@ -1450,7 +1450,7 @@
 	if (nandbcb_set_boot_config(argc, argv, &cfg))
 		return CMD_RET_FAILURE;
 
-	addr = simple_strtoul(argv[1], &endp, 16);
+	addr = hextoul(argv[1], &endp);
 	if (*argv[1] == 0 || *endp != 0)
 		return CMD_RET_FAILURE;
 
diff --git a/arch/arm/mach-imx/hab.c b/arch/arm/mach-imx/hab.c
index 00bd157..cc39e6b 100644
--- a/arch/arm/mach-imx/hab.c
+++ b/arch/arm/mach-imx/hab.c
@@ -609,12 +609,12 @@
 	if (argc < 3)
 		return CMD_RET_USAGE;
 
-	addr = simple_strtoul(argv[1], NULL, 16);
-	length = simple_strtoul(argv[2], NULL, 16);
+	addr = hextoul(argv[1], NULL);
+	length = hextoul(argv[2], NULL);
 	if (argc == 3)
 		ivt_offset = get_image_ivt_offset(addr);
 	else
-		ivt_offset = simple_strtoul(argv[3], NULL, 16);
+		ivt_offset = hextoul(argv[3], NULL);
 
 	rcode = imx_hab_authenticate_image(addr, length, ivt_offset);
 	if (rcode == 0)
diff --git a/arch/arm/mach-imx/imx8/ahab.c b/arch/arm/mach-imx/imx8/ahab.c
index 6392fe2..015267c 100644
--- a/arch/arm/mach-imx/imx8/ahab.c
+++ b/arch/arm/mach-imx/imx8/ahab.c
@@ -161,7 +161,7 @@
 	if (argc < 2)
 		return CMD_RET_USAGE;
 
-	addr = simple_strtoul(argv[1], NULL, 16);
+	addr = hextoul(argv[1], NULL);
 
 	printf("Authenticate OS container at 0x%lx\n", addr);
 
diff --git a/arch/arm/mach-imx/imx8/snvs_security_sc.c b/arch/arm/mach-imx/imx8/snvs_security_sc.c
index 6f9b1c9..7c34ce6 100644
--- a/arch/arm/mach-imx/imx8/snvs_security_sc.c
+++ b/arch/arm/mach-imx/imx8/snvs_security_sc.c
@@ -638,24 +638,24 @@
 	if (argc != (NB_REGISTERS + 1))
 		return CMD_RET_USAGE;
 
-	conf.hp.lock = simple_strtoul(argv[++idx], NULL, 16);
-	conf.hp.secvio_ctl = simple_strtoul(argv[++idx], NULL, 16);
-	conf.lp.lock = simple_strtoul(argv[++idx], NULL, 16);
-	conf.lp.secvio_ctl = simple_strtoul(argv[++idx], NULL, 16);
-	conf.lp.tamper_filt_cfg = simple_strtoul(argv[++idx], NULL, 16);
-	conf.lp.tamper_det_cfg = simple_strtoul(argv[++idx], NULL, 16);
-	conf.lp.tamper_det_cfg2 = simple_strtoul(argv[++idx], NULL, 16);
-	conf.lp.tamper_filt1_cfg = simple_strtoul(argv[++idx], NULL, 16);
-	conf.lp.tamper_filt2_cfg = simple_strtoul(argv[++idx], NULL, 16);
-	conf.lp.act_tamper1_cfg = simple_strtoul(argv[++idx], NULL, 16);
-	conf.lp.act_tamper2_cfg = simple_strtoul(argv[++idx], NULL, 16);
-	conf.lp.act_tamper3_cfg = simple_strtoul(argv[++idx], NULL, 16);
-	conf.lp.act_tamper4_cfg = simple_strtoul(argv[++idx], NULL, 16);
-	conf.lp.act_tamper5_cfg = simple_strtoul(argv[++idx], NULL, 16);
-	conf.lp.act_tamper_ctl = simple_strtoul(argv[++idx], NULL, 16);
-	conf.lp.act_tamper_clk_ctl = simple_strtoul(argv[++idx], NULL, 16);
-	conf.lp.act_tamper_routing_ctl1 = simple_strtoul(argv[++idx], NULL, 16);
-	conf.lp.act_tamper_routing_ctl2 = simple_strtoul(argv[++idx], NULL, 16);
+	conf.hp.lock = hextoul(argv[++idx], NULL);
+	conf.hp.secvio_ctl = hextoul(argv[++idx], NULL);
+	conf.lp.lock = hextoul(argv[++idx], NULL);
+	conf.lp.secvio_ctl = hextoul(argv[++idx], NULL);
+	conf.lp.tamper_filt_cfg = hextoul(argv[++idx], NULL);
+	conf.lp.tamper_det_cfg = hextoul(argv[++idx], NULL);
+	conf.lp.tamper_det_cfg2 = hextoul(argv[++idx], NULL);
+	conf.lp.tamper_filt1_cfg = hextoul(argv[++idx], NULL);
+	conf.lp.tamper_filt2_cfg = hextoul(argv[++idx], NULL);
+	conf.lp.act_tamper1_cfg = hextoul(argv[++idx], NULL);
+	conf.lp.act_tamper2_cfg = hextoul(argv[++idx], NULL);
+	conf.lp.act_tamper3_cfg = hextoul(argv[++idx], NULL);
+	conf.lp.act_tamper4_cfg = hextoul(argv[++idx], NULL);
+	conf.lp.act_tamper5_cfg = hextoul(argv[++idx], NULL);
+	conf.lp.act_tamper_ctl = hextoul(argv[++idx], NULL);
+	conf.lp.act_tamper_clk_ctl = hextoul(argv[++idx], NULL);
+	conf.lp.act_tamper_routing_ctl1 = hextoul(argv[++idx], NULL);
+	conf.lp.act_tamper_routing_ctl2 = hextoul(argv[++idx], NULL);
 
 	err = apply_snvs_config(&conf);
 
@@ -690,12 +690,12 @@
 	if (argc != (6 + 1))
 		return CMD_RET_USAGE;
 
-	conf.tamper_offset_ctl = simple_strtoul(argv[++idx], NULL, 16);
-	conf.tamper_pull_ctl = simple_strtoul(argv[++idx], NULL, 16);
-	conf.tamper_ana_test_ctl = simple_strtoul(argv[++idx], NULL, 16);
-	conf.tamper_sensor_trim_ctl = simple_strtoul(argv[++idx], NULL, 16);
-	conf.tamper_misc_ctl = simple_strtoul(argv[++idx], NULL, 16);
-	conf.tamper_core_volt_mon_ctl = simple_strtoul(argv[++idx], NULL, 16);
+	conf.tamper_offset_ctl = hextoul(argv[++idx], NULL);
+	conf.tamper_pull_ctl = hextoul(argv[++idx], NULL);
+	conf.tamper_ana_test_ctl = hextoul(argv[++idx], NULL);
+	conf.tamper_sensor_trim_ctl = hextoul(argv[++idx], NULL);
+	conf.tamper_misc_ctl = hextoul(argv[++idx], NULL);
+	conf.tamper_core_volt_mon_ctl = hextoul(argv[++idx], NULL);
 
 	err = apply_snvs_dgo_config(&conf);
 
@@ -727,7 +727,7 @@
 		return CMD_RET_USAGE;
 
 	conf.pad = simple_strtoul(argv[++idx], NULL, 10);
-	conf.mux_conf = simple_strtoul(argv[++idx], NULL, 16);
+	conf.mux_conf = hextoul(argv[++idx], NULL);
 
 	err = apply_tamper_pin_list_config(&conf, 1);
 
@@ -761,8 +761,8 @@
 	if (argc != (2 + 1))
 		return CMD_RET_USAGE;
 
-	conf.lp.status = simple_strtoul(argv[++idx], NULL, 16);
-	conf.lp.tamper_det_status = simple_strtoul(argv[++idx], NULL, 16);
+	conf.lp.status = hextoul(argv[++idx], NULL);
+	conf.lp.tamper_det_status = hextoul(argv[++idx], NULL);
 
 	scierr = check_write_secvio_config(SC_CONF_OFFSET_OF(lp.status),
 					   &conf.lp.status, NULL, NULL, NULL,
diff --git a/arch/arm/mach-imx/imx_bootaux.c b/arch/arm/mach-imx/imx_bootaux.c
index 30fb45d..9ffe5ac 100644
--- a/arch/arm/mach-imx/imx_bootaux.c
+++ b/arch/arm/mach-imx/imx_bootaux.c
@@ -180,7 +180,7 @@
 		return CMD_RET_SUCCESS;
 	}
 
-	addr = simple_strtoul(argv[1], NULL, 16);
+	addr = hextoul(argv[1], NULL);
 
 	if (!addr)
 		return CMD_RET_FAILURE;
diff --git a/arch/arm/mach-imx/mx6/mp.c b/arch/arm/mach-imx/mx6/mp.c
index 2fdf070..de9ace0 100644
--- a/arch/arm/mach-imx/mx6/mp.c
+++ b/arch/arm/mach-imx/mx6/mp.c
@@ -47,7 +47,7 @@
 {
 	uint32_t boot_addr;
 
-	boot_addr = simple_strtoul(argv[0], NULL, 16);
+	boot_addr = hextoul(argv[0], NULL);
 
 	switch (nr) {
 	case 1: