forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
181 lines
4.7 KiB
181 lines
4.7 KiB
// SPDX-License-Identifier: GPL-2.0+ |
|
/* |
|
* Copyright 2014 Freescale Semiconductor, Inc. |
|
*/ |
|
|
|
#include <common.h> |
|
#include <linux/libfdt.h> |
|
#include <fdt_support.h> |
|
#if CONFIG_SYS_FSL_SEC_COMPAT == 2 || CONFIG_SYS_FSL_SEC_COMPAT >= 4 |
|
#include <fsl_sec.h> |
|
#endif |
|
|
|
/* |
|
* update crypto node properties to a specified revision of the SEC |
|
* called with sec_rev == 0 if not on an E processor |
|
*/ |
|
#if CONFIG_SYS_FSL_SEC_COMPAT == 2 /* SEC 2.x/3.x */ |
|
void fdt_fixup_crypto_node(void *blob, int sec_rev) |
|
{ |
|
static const struct sec_rev_prop { |
|
u32 sec_rev; |
|
u32 num_channels; |
|
u32 channel_fifo_len; |
|
u32 exec_units_mask; |
|
u32 descriptor_types_mask; |
|
} sec_rev_prop_list[] = { |
|
{ 0x0200, 4, 24, 0x07e, 0x01010ebf }, /* SEC 2.0 */ |
|
{ 0x0201, 4, 24, 0x0fe, 0x012b0ebf }, /* SEC 2.1 */ |
|
{ 0x0202, 1, 24, 0x04c, 0x0122003f }, /* SEC 2.2 */ |
|
{ 0x0204, 4, 24, 0x07e, 0x012b0ebf }, /* SEC 2.4 */ |
|
{ 0x0300, 4, 24, 0x9fe, 0x03ab0ebf }, /* SEC 3.0 */ |
|
{ 0x0301, 4, 24, 0xbfe, 0x03ab0ebf }, /* SEC 3.1 */ |
|
{ 0x0303, 4, 24, 0x97c, 0x03a30abf }, /* SEC 3.3 */ |
|
}; |
|
static char compat_strlist[ARRAY_SIZE(sec_rev_prop_list) * |
|
sizeof("fsl,secX.Y")]; |
|
int crypto_node, sec_idx, err; |
|
char *p; |
|
u32 val; |
|
|
|
/* locate crypto node based on lowest common compatible */ |
|
crypto_node = fdt_node_offset_by_compatible(blob, -1, "fsl,sec2.0"); |
|
if (crypto_node == -FDT_ERR_NOTFOUND) |
|
return; |
|
|
|
/* delete it if not on an E-processor */ |
|
if (crypto_node > 0 && !sec_rev) { |
|
fdt_del_node(blob, crypto_node); |
|
return; |
|
} |
|
|
|
/* else we got called for possible uprev */ |
|
for (sec_idx = 0; sec_idx < ARRAY_SIZE(sec_rev_prop_list); sec_idx++) |
|
if (sec_rev_prop_list[sec_idx].sec_rev == sec_rev) |
|
break; |
|
|
|
if (sec_idx == ARRAY_SIZE(sec_rev_prop_list)) { |
|
puts("warning: unknown SEC revision number\n"); |
|
return; |
|
} |
|
|
|
err = fdt_setprop_u32(blob, crypto_node, "fsl,num-channels", |
|
sec_rev_prop_list[sec_idx].num_channels); |
|
if (err < 0) |
|
printf("WARNING: could not set crypto property: %s\n", |
|
fdt_strerror(err)); |
|
|
|
err = fdt_setprop_u32(blob, crypto_node, "fsl,descriptor-types-mask", |
|
sec_rev_prop_list[sec_idx].descriptor_types_mask); |
|
if (err < 0) |
|
printf("WARNING: could not set crypto property: %s\n", |
|
fdt_strerror(err)); |
|
|
|
err = fdt_setprop_u32(blob, crypto_node, "fsl,exec-units-mask", |
|
sec_rev_prop_list[sec_idx].exec_units_mask); |
|
if (err < 0) |
|
printf("WARNING: could not set crypto property: %s\n", |
|
fdt_strerror(err)); |
|
|
|
err = fdt_setprop_u32(blob, crypto_node, "fsl,channel-fifo-len", |
|
sec_rev_prop_list[sec_idx].channel_fifo_len); |
|
if (err < 0) |
|
printf("WARNING: could not set crypto property: %s\n", |
|
fdt_strerror(err)); |
|
|
|
val = 0; |
|
while (sec_idx >= 0) { |
|
p = compat_strlist + val; |
|
val += sprintf(p, "fsl,sec%d.%d", |
|
(sec_rev_prop_list[sec_idx].sec_rev & 0xff00) >> 8, |
|
sec_rev_prop_list[sec_idx].sec_rev & 0x00ff) + 1; |
|
sec_idx--; |
|
} |
|
err = fdt_setprop(blob, crypto_node, "compatible", &compat_strlist, |
|
val); |
|
if (err < 0) |
|
printf("WARNING: could not set crypto property: %s\n", |
|
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 = sec_in32(&sec->secvid_ms); |
|
u32 ccbvid = sec_in32(&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_u32(blob, crypto_node, "fsl,sec-era", 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) |
|
{ |
|
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
|
|
|