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powerpc/mpc85xx: Add property 'fsl, sec-era' in device tree node 'crypto'

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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>
Signed-off-by: Andy Fleming <afleming@freescale.com>
This commit is contained in:
Vakul Garg 2013-01-23 22:52:31 +00:00 committed by Andy Fleming
parent 5b93394318
commit 5e95e2d84b
3 changed files with 92 additions and 1 deletions
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8
arch/powerpc/cpu/mpc85xx/fdt.c
View File

@ -607,6 +607,14 @@ 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
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);

78
arch/powerpc/cpu/mpc8xxx/fdt.c
View File

@ -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

7
arch/powerpc/include/asm/immap_85xx.h
View File

@ -2748,6 +2748,12 @@ 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 {
@ -2983,6 +2989,7 @@ struct ccsr_pman {
#endif
#define CONFIG_SYS_MDIO1_OFFSET 0x24000
#define CONFIG_SYS_MPC85xx_ESDHC_OFFSET 0x2e000
#define CONFIG_SYS_FSL_SEC_OFFSET 0x30000
#define CONFIG_SYS_MPC85xx_SERDES2_OFFSET 0xE3100
#define CONFIG_SYS_MPC85xx_SERDES1_OFFSET 0xE3000
#define CONFIG_SYS_SNVS_OFFSET 0xE6000