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dummyflasher: Add emulation for S25FL128L

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Used to test WRSR_EXT2/3 support.

Signed-off-by: Nico Huber <nico.h@gmx.de>
Change-Id: Ic3cbea87218c973331b9b83e809e7d438407bc13
Reviewed-on: https://review.coreboot.org/c/flashrom/+/64748
Reviewed-by: Thomas Heijligen <src@posteo.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Nico Huber 2022-05-28 17:28:05 +02:00
parent fe47c15b99
commit 3c8166e50b
2 changed files with 59 additions and 2 deletions
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57
dummyflasher.c
View File

@ -35,6 +35,7 @@ enum emu_chip {
EMULATE_SST_SST25VF032B,
EMULATE_MACRONIX_MX25L6436,
EMULATE_WINBOND_W25Q128FV,
EMULATE_SPANSION_S25FL128L,
EMULATE_VARIABLE_SIZE,
};
@ -267,12 +268,36 @@ static uint8_t get_reg_ro_bit_mask(const struct emu_data *data, enum flash_reg r
}
}
if (data->emu_chip == EMULATE_SPANSION_S25FL128L) {
const bool srp0 = (data->emu_status[0] >> 7);
const bool srp1 = (data->emu_status[1] & 1);
const bool wp_active = (srp1 || (srp0 && data->hwwp));
if (wp_active) {
ro_bits = 0xff;
} else if (reg == STATUS2) {
/* SUS (bit_7) */
ro_bits = 0x80;
/* Once any of the lock bits (LB[0..3]) are set, they
can't be unset. */
ro_bits |= data->emu_status[1] & (1 << 2);
ro_bits |= data->emu_status[1] & (1 << 3);
ro_bits |= data->emu_status[1] & (1 << 4);
ro_bits |= data->emu_status[1] & (1 << 5);
} else if (reg == STATUS3) {
/* Two reserved bits. */
ro_bits = 0x11;
}
}
return ro_bits;
}
static void update_write_protection(struct emu_data *data)
{
if (data->emu_chip != EMULATE_WINBOND_W25Q128FV)
if (data->emu_chip != EMULATE_WINBOND_W25Q128FV &&
data->emu_chip != EMULATE_SPANSION_S25FL128L)
return;
const struct wp_bits bits = {
@ -419,6 +444,12 @@ static int emulate_spi_chip_response(unsigned int writecnt,
if (readcnt > 0)
memset(readarr, 0x17, readcnt);
break;
case EMULATE_SPANSION_S25FL128L:
if (readcnt > 0)
readarr[0] = 0x60;
if (readcnt > 1)
readarr[1] = 0x18;
break;
default: /* ignore */
break;
}
@ -476,6 +507,14 @@ static int emulate_spi_chip_response(unsigned int writecnt,
if (readcnt > 2)
readarr[2] = 0x18;
break;
case EMULATE_SPANSION_S25FL128L:
if (readcnt > 0)
readarr[0] = 0x01;
if (readcnt > 1)
readarr[1] = 0x60;
if (readcnt > 2)
readarr[2] = 0x18;
break;
case EMULATE_VARIABLE_SIZE:
if (readcnt > 0)
readarr[0] = (PROGMANUF_ID >> 8) & 0xff;
@ -830,6 +869,7 @@ static int dummy_spi_send_command(const struct flashctx *flash, unsigned int wri
case EMULATE_SST_SST25VF032B:
case EMULATE_MACRONIX_MX25L6436:
case EMULATE_WINBOND_W25Q128FV:
case EMULATE_SPANSION_S25FL128L:
case EMULATE_VARIABLE_SIZE:
if (emulate_spi_chip_response(writecnt, readcnt, writearr,
readarr, emu_data)) {
@ -1175,6 +1215,21 @@ static int init_data(struct emu_data *data, enum chipbustype *dummy_buses_suppor
data->emu_jedec_ce_c7_size = data->emu_chip_size;
msg_pdbg("Emulating Winbond W25Q128FV SPI flash chip (RDID)\n");
}
if (!strcmp(tmp, "S25FL128L")) {
data->emu_chip = EMULATE_SPANSION_S25FL128L;
data->emu_wrsr_ext2 = true;
data->emu_wrsr_ext3 = true;
data->emu_chip_size = 16 * 1024 * 1024;
data->emu_max_byteprogram_size = 256;
data->emu_max_aai_size = 0;
data->emu_status_len = 3;
data->emu_jedec_se_size = 4 * 1024;
data->emu_jedec_be_52_size = 32 * 1024;
data->emu_jedec_be_d8_size = 64 * 1024;
data->emu_jedec_ce_60_size = data->emu_chip_size;
data->emu_jedec_ce_c7_size = data->emu_chip_size;
msg_pdbg("Emulating Spansion S25FL128L SPI flash chip (RES, RDID, WP)\n");
}
/* The name of variable-size virtual chip. A 4 MiB flash example:
* flashrom -p dummy:emulate=VARIABLE_SIZE,size=4194304

4
flashrom.8.tmpl
View File

@ -735,6 +735,8 @@ vendor):
.sp
.RB "* Winbond " W25Q128FV " SPI flash chip (16384 kB, RDID)"
.sp
.RB "* Spansion " S25FL128L " SPI flash chip (16384 kB, RDID)"
.sp
.RB "* Dummy vendor " VARIABLE_SIZE " SPI flash chip (configurable size, page write)"
.sp
Example:
@ -828,7 +830,7 @@ registers content.
.TP
.B Write protection
.sp
Chips with emulated WP: W25Q128FV.
Chips with emulated WP: W25Q128FV, S25FL128L.
.sp
You can simulate state of hardware protection pin (WP) with the
.sp