rng: Introduce SPL_DM_RNG
Add SPL variant of DM_RNG so that the DM_RNG can be disabled in SPL
if necessary. This may be necessary due to e.g. size constraints of
the SPL.
Signed-off-by: Marek Vasut <marex@denx.de>
diff --git a/boot/pxe_utils.c b/boot/pxe_utils.c
index 9620562..5c1c962 100644
--- a/boot/pxe_utils.c
+++ b/boot/pxe_utils.c
@@ -21,9 +21,7 @@
#include <errno.h>
#include <linux/list.h>
-#ifdef CONFIG_DM_RNG
#include <rng.h>
-#endif
#include <splash.h>
#include <asm/io.h>
@@ -323,7 +321,7 @@
static void label_boot_kaslrseed(void)
{
-#ifdef CONFIG_DM_RNG
+#if CONFIG_IS_ENABLED(DM_RNG)
ulong fdt_addr;
struct fdt_header *working_fdt;
size_t n = 0x8;
diff --git a/boot/vbe_request.c b/boot/vbe_request.c
index 917251a..0293ac6 100644
--- a/boot/vbe_request.c
+++ b/boot/vbe_request.c
@@ -36,7 +36,7 @@
u32 size;
int ret;
- if (!IS_ENABLED(CONFIG_DM_RNG))
+ if (!CONFIG_IS_ENABLED(DM_RNG))
return -ENOTSUPP;
if (ofnode_read_u32(node, "vbe,size", &size)) {
diff --git a/drivers/Makefile b/drivers/Makefile
index bf73b77..9195daf 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -126,7 +126,7 @@
obj-$(CONFIG_MACH_PIC32) += ddr/microchip/
obj-$(CONFIG_FUZZ) += fuzz/
obj-$(CONFIG_DM_HWSPINLOCK) += hwspinlock/
-obj-$(CONFIG_DM_RNG) += rng/
+obj-$(CONFIG_$(SPL_TPL_)DM_RNG) += rng/
endif
obj-y += soc/
diff --git a/drivers/crypto/fsl/jr.c b/drivers/crypto/fsl/jr.c
index 203f162..8ae5c43 100644
--- a/drivers/crypto/fsl/jr.c
+++ b/drivers/crypto/fsl/jr.c
@@ -787,7 +787,7 @@
}
#if CONFIG_IS_ENABLED(OF_CONTROL)
if (ofnode_valid(scu_node)) {
- if (IS_ENABLED(CONFIG_DM_RNG)) {
+ if (CONFIG_IS_ENABLED(DM_RNG)) {
ret = device_bind_driver(NULL, "caam-rng", "caam-rng", NULL);
if (ret)
printf("Couldn't bind rng driver (%d)\n", ret);
@@ -810,7 +810,7 @@
return -1;
}
- if (IS_ENABLED(CONFIG_DM_RNG)) {
+ if (CONFIG_IS_ENABLED(DM_RNG)) {
ret = device_bind_driver(NULL, "caam-rng", "caam-rng",
NULL);
if (ret)
diff --git a/drivers/rng/Kconfig b/drivers/rng/Kconfig
index cd72852..5758ae1 100644
--- a/drivers/rng/Kconfig
+++ b/drivers/rng/Kconfig
@@ -6,6 +6,13 @@
This interface is used to initialise the rng device and to
read the random seed from the device.
+config SPL_DM_RNG
+ bool "Driver support for Random Number Generator devices in SPL"
+ depends on SPL_DM
+ help
+ This option is an SPL-variant of the DM_RNG option.
+ See the help of DM_RNG for details.
+
if DM_RNG
config RNG_MESON
diff --git a/drivers/rng/Makefile b/drivers/rng/Makefile
index ecae1a3..c1f1c61 100644
--- a/drivers/rng/Makefile
+++ b/drivers/rng/Makefile
@@ -3,7 +3,7 @@
# Copyright (c) 2019, Linaro Limited
#
-obj-$(CONFIG_DM_RNG) += rng-uclass.o
+obj-$(CONFIG_$(SPL_TPL_)DM_RNG) += rng-uclass.o
obj-$(CONFIG_RNG_MESON) += meson-rng.o
obj-$(CONFIG_RNG_SANDBOX) += sandbox_rng.o
obj-$(CONFIG_RNG_MSM) += msm_rng.o
diff --git a/lib/uuid.c b/lib/uuid.c
index 2d7d995..dfa2320 100644
--- a/lib/uuid.c
+++ b/lib/uuid.c
@@ -378,7 +378,7 @@
struct udevice *devp;
u32 randv = 0;
- if (IS_ENABLED(CONFIG_DM_RNG)) {
+ if (CONFIG_IS_ENABLED(DM_RNG)) {
ret = uclass_get_device(UCLASS_RNG, 0, &devp);
if (!ret) {
ret = dm_rng_read(devp, &randv, sizeof(randv));
diff --git a/net/net_rand.h b/net/net_rand.h
index d3c5559..686e85f 100644
--- a/net/net_rand.h
+++ b/net/net_rand.h
@@ -42,7 +42,7 @@
struct udevice *devp;
u32 randv = 0;
- if (IS_ENABLED(CONFIG_DM_RNG)) {
+ if (CONFIG_IS_ENABLED(DM_RNG)) {
ret = uclass_get_device(UCLASS_RNG, 0, &devp);
if (ret) {
ret = dm_rng_read(devp, &randv, sizeof(randv));
diff --git a/test/dm/Makefile b/test/dm/Makefile
index a3ce7b3..c12589d 100644
--- a/test/dm/Makefile
+++ b/test/dm/Makefile
@@ -102,7 +102,7 @@
obj-$(CONFIG_SYSRESET) += sysreset.o
obj-$(CONFIG_DM_REGULATOR) += regulator.o
obj-$(CONFIG_CMD_RKMTD) += rkmtd.o
-obj-$(CONFIG_DM_RNG) += rng.o
+obj-$(CONFIG_$(SPL_TPL_)DM_RNG) += rng.o
obj-$(CONFIG_DM_RTC) += rtc.o
obj-$(CONFIG_SCMI_FIRMWARE) += scmi.o
obj-$(CONFIG_SCSI) += scsi.o