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rp23xx: add hardware SHA-256 cryptodev support

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Add an RP23xx hardware crypto driver for /dev/crypto with SHA-256
support backed by the RP2350 SHA accelerator.

Wire the new driver into the RP23xx ARM build and register
CRYPTO_SHA2_256 through cryptodev.

Also fix the RP23xx SHA256 CSR BSWAP bit definition in both the ARM and
RISC-V RP23xx headers. The previous value used bit 18, but the RP2350
hardware uses bit 12. Without this fix, the accelerator hashed input
words with the wrong byte order and produced incorrect digests.

Signed-off-by: karaketir16 <osmankaraketir@gmail.com>
This commit is contained in:
karaketir16
2026-04-06 19:43:47 +01:00
committed by Lup Yuen Lee
parent c771da1b81
commit d09bfc021d
5 changed files with 639 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/arm/src/rp23xx/CMakeLists.txt
+4
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@@ -85,4 +85,8 @@ if(CONFIG_WATCHDOG)
list(APPEND SRCS rp23xx_wdt.c)
endif()
if(CONFIG_CRYPTO_CRYPTODEV_HARDWARE)
list(APPEND SRCS rp23xx_crypto.c)
endif()
target_sources(arch PRIVATE ${SRCS})
arch/arm/src/rp23xx/Make.defs
+4
View File
@@ -88,3 +88,7 @@ endif
ifeq ($(CONFIG_WATCHDOG),y)
CHIP_CSRCS += rp23xx_wdt.c
endif
ifeq ($(CONFIG_CRYPTO_CRYPTODEV_HARDWARE),y)
CHIP_CSRCS += rp23xx_crypto.c
endif
arch/arm/src/rp23xx/hardware/rp23xx_sha256.h
+1 -1
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@@ -48,7 +48,7 @@
/* Register bit definitions *************************************************/
#define RP23XX_SHA256_CSR_MASK (0x00001317)
#define RP23XX_SHA256_CSR_BSWAP (1 << 18)
#define RP23XX_SHA256_CSR_BSWAP (1 << 12)
#define RP23XX_SHA256_CSR_DMA_SIZE_MASK (0x00000300)
#define RP23XX_SHA256_CSR_ERR_WDATA_NOT_RDY (1 << 4)
#define RP23XX_SHA256_CSR_SUM_VLD (1 << 2)
arch/arm/src/rp23xx/rp23xx_crypto.c
+629
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File diff suppressed because it is too large Load Diff
arch/risc-v/src/rp23xx-rv/hardware/rp23xx_sha256.h
+1 -1
View File
@@ -48,7 +48,7 @@
/* Register bit definitions *************************************************/
#define RP23XX_SHA256_CSR_MASK (0x00001317)
#define RP23XX_SHA256_CSR_BSWAP (1 << 18)
#define RP23XX_SHA256_CSR_BSWAP (1 << 12)
#define RP23XX_SHA256_CSR_DMA_SIZE_MASK (0x00000300)
#define RP23XX_SHA256_CSR_ERR_WDATA_NOT_RDY (1 << 4)
#define RP23XX_SHA256_CSR_SUM_VLD (1 << 2)