[PATCH 1/3] rng: Introduce SPL_DM_RNG
Marek Vasut
marex at denx.de
Fri Apr 26 01:02:07 CEST 2024
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 at denx.de>
---
Cc: Angelo Dureghello <angelo at kernel-space.org>
Cc: Emanuele Ghidoli <emanuele.ghidoli at toradex.com>
Cc: Fabio Estevam <festevam at gmail.com>
Cc: Gaurav Jain <gaurav.jain at nxp.com>
Cc: Heinrich Schuchardt <xypron.glpk at gmx.de>
Cc: Marek Vasut <marex at denx.de>
Cc: Michal Simek <michal.simek at amd.com>
Cc: Simon Glass <sjg at chromium.org>
Cc: Stefan Roese <sr at denx.de>
Cc: Sughosh Ganu <sughosh.ganu at linaro.org>
Cc: Svyatoslav Ryhel <clamor95 at gmail.com>
Cc: Tim Harvey <tharvey at gateworks.com>
Cc: Tom Rini <trini at konsulko.com>
Cc: u-boot at lists.denx.de
---
boot/pxe_utils.c | 4 +---
boot/vbe_request.c | 2 +-
drivers/Makefile | 2 +-
drivers/crypto/fsl/jr.c | 4 ++--
drivers/rng/Kconfig | 7 +++++++
drivers/rng/Makefile | 2 +-
lib/uuid.c | 2 +-
net/net_rand.h | 2 +-
test/dm/Makefile | 2 +-
9 files changed, 16 insertions(+), 11 deletions(-)
diff --git a/boot/pxe_utils.c b/boot/pxe_utils.c
index 96205626750..5c1c962ff4c 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 int label_localboot(struct pxe_label *label)
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 917251afa1c..0293ac6c869 100644
--- a/boot/vbe_request.c
+++ b/boot/vbe_request.c
@@ -36,7 +36,7 @@ static int handle_random_req(ofnode node, int default_size,
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 bf73b7718ce..9195dafd37e 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -126,7 +126,7 @@ obj-$(CONFIG_W1_EEPROM) += w1-eeprom/
obj-$(CONFIG_MACH_PIC32) += ddr/microchip/
obj-$(CONFIG_FUZZ) += fuzz/
obj-$(CONFIG_DM_HWSPINLOCK) += hwspinlock/
-obj-$(CONFIG_DM_RNG) += rng/
+obj-$(CONFIG_$(SPL_TPL_)DM_RNG) += rng/
endif
obj-y += soc/
diff --git a/drivers/crypto/fsl/jr.c b/drivers/crypto/fsl/jr.c
index 203f1625215..8ae5c434bdb 100644
--- a/drivers/crypto/fsl/jr.c
+++ b/drivers/crypto/fsl/jr.c
@@ -787,7 +787,7 @@ init:
}
#if CONFIG_IS_ENABLED(OF_CONTROL)
if (ofnode_valid(scu_node)) {
- if (IS_ENABLED(CONFIG_DM_RNG)) {
+ if (CONFIG_IS_ENABLED(DM_RNG)) {
ret = device_bind_driver(NULL, "caam-rng", "caam-rng", NULL);
if (ret)
printf("Couldn't bind rng driver (%d)\n", ret);
@@ -810,7 +810,7 @@ init:
return -1;
}
- if (IS_ENABLED(CONFIG_DM_RNG)) {
+ if (CONFIG_IS_ENABLED(DM_RNG)) {
ret = device_bind_driver(NULL, "caam-rng", "caam-rng",
NULL);
if (ret)
diff --git a/drivers/rng/Kconfig b/drivers/rng/Kconfig
index cd72852a479..5758ae192a6 100644
--- a/drivers/rng/Kconfig
+++ b/drivers/rng/Kconfig
@@ -6,6 +6,13 @@ config DM_RNG
This interface is used to initialise the rng device and to
read the random seed from the device.
+config SPL_DM_RNG
+ bool "Driver support for Random Number Generator devices in SPL"
+ depends on SPL_DM
+ help
+ This option is an SPL-variant of the DM_RNG option.
+ See the help of DM_RNG for details.
+
if DM_RNG
config RNG_MESON
diff --git a/drivers/rng/Makefile b/drivers/rng/Makefile
index ecae1a3da33..c1f1c616e00 100644
--- a/drivers/rng/Makefile
+++ b/drivers/rng/Makefile
@@ -3,7 +3,7 @@
# Copyright (c) 2019, Linaro Limited
#
-obj-$(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-$(CONFIG_RNG_MSM) += msm_rng.o
diff --git a/lib/uuid.c b/lib/uuid.c
index 2d7d99535e7..dfa2320ba26 100644
--- a/lib/uuid.c
+++ b/lib/uuid.c
@@ -378,7 +378,7 @@ void gen_rand_uuid(unsigned char *uuid_bin)
struct udevice *devp;
u32 randv = 0;
- if (IS_ENABLED(CONFIG_DM_RNG)) {
+ if (CONFIG_IS_ENABLED(DM_RNG)) {
ret = uclass_get_device(UCLASS_RNG, 0, &devp);
if (!ret) {
ret = dm_rng_read(devp, &randv, sizeof(randv));
diff --git a/net/net_rand.h b/net/net_rand.h
index d3c5559adfd..686e85f2b53 100644
--- a/net/net_rand.h
+++ b/net/net_rand.h
@@ -42,7 +42,7 @@ static inline void srand_mac(void)
struct udevice *devp;
u32 randv = 0;
- if (IS_ENABLED(CONFIG_DM_RNG)) {
+ if (CONFIG_IS_ENABLED(DM_RNG)) {
ret = uclass_get_device(UCLASS_RNG, 0, &devp);
if (ret) {
ret = dm_rng_read(devp, &randv, sizeof(randv));
diff --git a/test/dm/Makefile b/test/dm/Makefile
index a3ce7b3889f..c12589d487c 100644
--- a/test/dm/Makefile
+++ b/test/dm/Makefile
@@ -102,7 +102,7 @@ obj-$(CONFIG_DM_RESET) += reset.o
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
--
2.43.0
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