Era property is added in the crypto node in device tree. Move the code to do so from arch/powerpc/mpc8xxx/fdt.c to drivers/sec/sec.c so that it can be used across arm and powerpc platforms having crypto node. Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com> [York Sun: Fix commit message indentation] Reviewed-by: York Sun <yorksun@freescale.com>master
Ruchika Gupta
10 years ago
committed by
York Sun
parent
d8f527578e
commit
0181937fa3
@ -0,0 +1,184 @@ |
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/*
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* Copyright 2014 Freescale Semiconductor, Inc. |
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* |
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* SPDX-License-Identifier: GPL-2.0+ |
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*/ |
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#include <common.h> |
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#include <libfdt.h> |
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#include <fdt_support.h> |
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#if CONFIG_SYS_FSL_SEC_COMPAT == 2 || CONFIG_SYS_FSL_SEC_COMPAT >= 4 |
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#include <fsl_sec.h> |
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#endif |
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/*
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* update crypto node properties to a specified revision of the SEC |
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* called with sec_rev == 0 if not on an E processor |
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*/ |
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#if CONFIG_SYS_FSL_SEC_COMPAT == 2 /* SEC 2.x/3.x */ |
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void fdt_fixup_crypto_node(void *blob, int sec_rev) |
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{ |
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static const struct sec_rev_prop { |
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u32 sec_rev; |
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u32 num_channels; |
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u32 channel_fifo_len; |
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u32 exec_units_mask; |
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u32 descriptor_types_mask; |
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} sec_rev_prop_list[] = { |
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{ 0x0200, 4, 24, 0x07e, 0x01010ebf }, /* SEC 2.0 */ |
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{ 0x0201, 4, 24, 0x0fe, 0x012b0ebf }, /* SEC 2.1 */ |
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{ 0x0202, 1, 24, 0x04c, 0x0122003f }, /* SEC 2.2 */ |
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{ 0x0204, 4, 24, 0x07e, 0x012b0ebf }, /* SEC 2.4 */ |
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{ 0x0300, 4, 24, 0x9fe, 0x03ab0ebf }, /* SEC 3.0 */ |
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{ 0x0301, 4, 24, 0xbfe, 0x03ab0ebf }, /* SEC 3.1 */ |
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{ 0x0303, 4, 24, 0x97c, 0x03a30abf }, /* SEC 3.3 */ |
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}; |
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static char compat_strlist[ARRAY_SIZE(sec_rev_prop_list) * |
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sizeof("fsl,secX.Y")]; |
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int crypto_node, sec_idx, err; |
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char *p; |
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u32 val; |
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/* locate crypto node based on lowest common compatible */ |
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crypto_node = fdt_node_offset_by_compatible(blob, -1, "fsl,sec2.0"); |
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if (crypto_node == -FDT_ERR_NOTFOUND) |
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return; |
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/* delete it if not on an E-processor */ |
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if (crypto_node > 0 && !sec_rev) { |
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fdt_del_node(blob, crypto_node); |
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return; |
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} |
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/* else we got called for possible uprev */ |
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for (sec_idx = 0; sec_idx < ARRAY_SIZE(sec_rev_prop_list); sec_idx++) |
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if (sec_rev_prop_list[sec_idx].sec_rev == sec_rev) |
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break; |
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if (sec_idx == ARRAY_SIZE(sec_rev_prop_list)) { |
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puts("warning: unknown SEC revision number\n"); |
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return; |
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} |
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val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].num_channels); |
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err = fdt_setprop(blob, crypto_node, "fsl,num-channels", &val, 4); |
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if (err < 0) |
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printf("WARNING: could not set crypto property: %s\n", |
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fdt_strerror(err)); |
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val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].descriptor_types_mask); |
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err = fdt_setprop(blob, crypto_node, "fsl,descriptor-types-mask", |
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&val, 4); |
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if (err < 0) |
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printf("WARNING: could not set crypto property: %s\n", |
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fdt_strerror(err)); |
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val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].exec_units_mask); |
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err = fdt_setprop(blob, crypto_node, "fsl,exec-units-mask", &val, 4); |
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if (err < 0) |
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printf("WARNING: could not set crypto property: %s\n", |
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fdt_strerror(err)); |
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val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].channel_fifo_len); |
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err = fdt_setprop(blob, crypto_node, "fsl,channel-fifo-len", &val, 4); |
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if (err < 0) |
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printf("WARNING: could not set crypto property: %s\n", |
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fdt_strerror(err)); |
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val = 0; |
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while (sec_idx >= 0) { |
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p = compat_strlist + val; |
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val += sprintf(p, "fsl,sec%d.%d", |
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(sec_rev_prop_list[sec_idx].sec_rev & 0xff00) >> 8, |
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sec_rev_prop_list[sec_idx].sec_rev & 0x00ff) + 1; |
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sec_idx--; |
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} |
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err = fdt_setprop(blob, crypto_node, "compatible", &compat_strlist, |
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val); |
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if (err < 0) |
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printf("WARNING: could not set crypto property: %s\n", |
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fdt_strerror(err)); |
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} |
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#elif CONFIG_SYS_FSL_SEC_COMPAT >= 4 /* SEC4 */ |
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static u8 caam_get_era(void) |
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{ |
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static const struct { |
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u16 ip_id; |
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u8 maj_rev; |
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u8 era; |
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} caam_eras[] = { |
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{0x0A10, 1, 1}, |
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{0x0A10, 2, 2}, |
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{0x0A12, 1, 3}, |
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{0x0A14, 1, 3}, |
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{0x0A14, 2, 4}, |
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{0x0A16, 1, 4}, |
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{0x0A10, 3, 4}, |
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{0x0A11, 1, 4}, |
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{0x0A18, 1, 4}, |
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{0x0A11, 2, 5}, |
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{0x0A12, 2, 5}, |
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{0x0A13, 1, 5}, |
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{0x0A1C, 1, 5} |
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}; |
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ccsr_sec_t __iomem *sec = (void __iomem *)CONFIG_SYS_FSL_SEC_ADDR; |
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u32 secvid_ms = sec_in32(&sec->secvid_ms); |
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u32 ccbvid = sec_in32(&sec->ccbvid); |
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u16 ip_id = (secvid_ms & SEC_SECVID_MS_IPID_MASK) >> |
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SEC_SECVID_MS_IPID_SHIFT; |
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u8 maj_rev = (secvid_ms & SEC_SECVID_MS_MAJ_REV_MASK) >> |
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SEC_SECVID_MS_MAJ_REV_SHIFT; |
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u8 era = (ccbvid & SEC_CCBVID_ERA_MASK) >> SEC_CCBVID_ERA_SHIFT; |
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int i; |
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if (era) /* This is '0' prior to CAAM ERA-6 */ |
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return era; |
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for (i = 0; i < ARRAY_SIZE(caam_eras); i++) |
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if (caam_eras[i].ip_id == ip_id && |
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caam_eras[i].maj_rev == maj_rev) |
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return caam_eras[i].era; |
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return 0; |
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} |
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static void fdt_fixup_crypto_era(void *blob, u32 era) |
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{ |
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int err; |
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int crypto_node; |
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crypto_node = fdt_path_offset(blob, "crypto"); |
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if (crypto_node < 0) { |
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printf("WARNING: Missing crypto node\n"); |
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return; |
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} |
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err = fdt_setprop(blob, crypto_node, "fsl,sec-era", &era, |
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sizeof(era)); |
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if (err < 0) { |
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printf("ERROR: could not set fsl,sec-era property: %s\n", |
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fdt_strerror(err)); |
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} |
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} |
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void fdt_fixup_crypto_node(void *blob, int sec_rev) |
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{ |
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u8 era; |
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if (!sec_rev) { |
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fdt_del_node_and_alias(blob, "crypto"); |
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return; |
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} |
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/* Add SEC ERA information in compatible */ |
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era = caam_get_era(); |
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if (era) { |
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fdt_fixup_crypto_era(blob, era); |
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} else { |
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printf("WARNING: Unable to get ERA for CAAM rev: %d\n", |
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sec_rev); |
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} |
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} |
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#endif |
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