If property 'fsl,sec-era' is already present, it is updated. This property is required so that applications can ascertain which descriptor commands are supported on a particular CAAM version.

Signed-off-by: Vakul Garg vakul@freescale.com Cc: Andy Fleming afleming@gmail.com --- arch/powerpc/cpu/mpc85xx/fdt.c | 8 +++ arch/powerpc/cpu/mpc8xxx/fdt.c | 78 ++++++++++++++++++++++++++++++++- arch/powerpc/include/asm/immap_85xx.h | 6 +++ 3 files changed, 91 insertions(+), 1 deletions(-)

diff --git a/arch/powerpc/cpu/mpc85xx/fdt.c b/arch/powerpc/cpu/mpc85xx/fdt.c index 5af2661..e7b5dfd 100644 --- a/arch/powerpc/cpu/mpc85xx/fdt.c +++ b/arch/powerpc/cpu/mpc85xx/fdt.c @@ -591,6 +591,14 @@ void ft_cpu_setup(void *blob, bd_t *bd) /* delete crypto node if not on an E-processor */ if (!IS_E_PROCESSOR(get_svr())) fdt_fixup_crypto_node(blob, 0); +#if CONFIG_SYS_FSL_SEC_COMPAT >= 4 /* SEC 4.x/5.x */ + else { + ccsr_sec_t __iomem *sec; + + sec = (void __iomem *)CONFIG_SYS_FSL_SEC_ADDR; + fdt_fixup_crypto_node(blob, in_be32(&sec->secvid_ms)); + } +#endif

fdt_fixup_ethernet(blob);

diff --git a/arch/powerpc/cpu/mpc8xxx/fdt.c b/arch/powerpc/cpu/mpc8xxx/fdt.c index 68db8e2..20cbb45 100644 --- a/arch/powerpc/cpu/mpc8xxx/fdt.c +++ b/arch/powerpc/cpu/mpc8xxx/fdt.c @@ -297,10 +297,86 @@ void fdt_fixup_crypto_node(void *blob, int sec_rev) fdt_strerror(err)); } #elif CONFIG_SYS_FSL_SEC_COMPAT >= 4 /* SEC4 */ +static u8 caam_get_era(void) +{ + static const struct { + u16 ip_id; + u8 maj_rev; + u8 era; + } caam_eras[] = { + {0x0A10, 1, 1}, + {0x0A10, 2, 2}, + {0x0A12, 1, 3}, + {0x0A14, 1, 3}, + {0x0A14, 2, 4}, + {0x0A16, 1, 4}, + {0x0A10, 3, 4}, + {0x0A11, 1, 4}, + {0x0A18, 1, 4}, + {0x0A11, 2, 5}, + {0x0A12, 2, 5}, + {0x0A13, 1, 5}, + {0x0A1C, 1, 5} + }; + + ccsr_sec_t __iomem *sec = (void __iomem *)CONFIG_SYS_FSL_SEC_ADDR; + u32 secvid_ms = in_be32(&sec->secvid_ms); + u32 ccbvid = in_be32(&sec->ccbvid); + u16 ip_id = (secvid_ms & SEC_SECVID_MS_IPID_MASK) >> + SEC_SECVID_MS_IPID_SHIFT; + u8 maj_rev = (secvid_ms & SEC_SECVID_MS_MAJ_REV_MASK) >> + SEC_SECVID_MS_MAJ_REV_SHIFT; + u8 era = (ccbvid & SEC_CCBVID_ERA_MASK) >> SEC_CCBVID_ERA_SHIFT; + + int i; + + if (era) /* This is '0' prior to CAAM ERA-6 */ + return era; + + for (i = 0; i < ARRAY_SIZE(caam_eras); i++) + if (caam_eras[i].ip_id == ip_id && + caam_eras[i].maj_rev == maj_rev) + return caam_eras[i].era; + + return 0; +} + +static void fdt_fixup_crypto_era(void *blob, u32 era) +{ + int err; + int crypto_node; + + crypto_node = fdt_path_offset(blob, "crypto"); + if (crypto_node < 0) { + printf("WARNING: Missing crypto node\n"); + return; + } + + err = fdt_setprop(blob, crypto_node, "fsl,sec-era", &era, + sizeof(era)); + if (err < 0) { + printf("ERROR: could not set fsl,sec-era property: %s\n", + fdt_strerror(err)); + } +} + void fdt_fixup_crypto_node(void *blob, int sec_rev) { - if (!sec_rev) + u8 era; + + if (!sec_rev) { fdt_del_node_and_alias(blob, "crypto"); + return; + } + + /* Add SEC ERA information in compatible */ + era = caam_get_era(); + if (era) { + fdt_fixup_crypto_era(blob, era); + } else { + printf("WARNING: Unable to get ERA for CAAM rev: %d\n", + sec_rev); + } } #endif

diff --git a/arch/powerpc/include/asm/immap_85xx.h b/arch/powerpc/include/asm/immap_85xx.h index 70608fe..6b2c05c 100644 --- a/arch/powerpc/include/asm/immap_85xx.h +++ b/arch/powerpc/include/asm/immap_85xx.h @@ -2757,6 +2757,12 @@ typedef struct ccsr_sec { #define SEC_CHANUM_MS_JRNUM_SHIFT 28 #define SEC_CHANUM_MS_DECONUM_MASK 0x0f000000 #define SEC_CHANUM_MS_DECONUM_SHIFT 24 +#define SEC_SECVID_MS_IPID_MASK 0xffff0000 +#define SEC_SECVID_MS_IPID_SHIFT 16 +#define SEC_SECVID_MS_MAJ_REV_MASK 0x0000ff00 +#define SEC_SECVID_MS_MAJ_REV_SHIFT 8 +#define SEC_CCBVID_ERA_MASK 0xff000000 +#define SEC_CCBVID_ERA_SHIFT 24 #endif

typedef struct ccsr_qman {