[flashrom] [PATCH v3 2/2] ENE Embedded Debug Interface (EDI) and ENE KB9012 EC internal flash support
Paul Kocialkowski
contact at paulk.fr
Thu Nov 12 19:05:59 CET 2015
Le mercredi 11 novembre 2015 à 22:13 +0100, Nico Huber a écrit :
> Dear flashrom maintainers, ;)
>
> I have one last concern with this patch. It makes flashrom probe auto-
> matically by emitting SPI 0x30 commands and I have no idea if that may
> harm SPI chips that interpret it in any non-obvious way. Do we have a
> policy for adding new probe commands?
I suppose the other way round might also be problematic: I haven't
checked for sure that other chips don't send instructions for probe that
would be seen as valid for the EDI protocol.
This seems like a real problem to me. Maybe we could indicate in the
command line what type (protocol) of probing we want to do
(JEDEC/EDI/etc). We could keep JEDEC as default so that the default
behaviour remains the same.
> If you share my concerns, is there a way to disable the automatic probe?
> If not, well, it's acked-by :)
I guess we should follow up this discussion and introduce a solution in
a future patch. I could work on that if no one else is interested.
> On 11.11.2015 16:55, Paul Kocialkowski wrote:
> > The ENE Embedded Debug Interface (EDI) is a SPI-based interface for accessing
> > the memory of ENE embedded controllers.
> >
> > The ENE KB9012 EC is an embedded controller found on various laptops such as
> > the Lenovo G505s. It features a 8051 microcontroller and has 128 KiB of internal
> > storage for program data.
> >
> > EDI can be accessed on the KB9012 through pins 59-62 (CS-CLK-MOSI-MISO) when
> > flash direct access is not in use. Some firmwares disable EDI at run-time, so
> > it might be necessary to ground pin 42 to reset the 8051 microcontroller before
> > accessing the KB9012 via EDI.
> >
> > Signed-off-by: Paul Kocialkowski <contact at paulk.fr>
> Acked-by: Nico Huber <nico.h at gmx.de>
>
> > ---
> > Makefile | 2 +-
> > chipdrivers.h | 6 +
> > edi.c | 497 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> > edi.h | 30 ++++
> > ene.h | 51 ++++++
> > flashchips.c | 23 +++
> > 6 files changed, 608 insertions(+), 1 deletion(-)
> > create mode 100644 edi.c
> > create mode 100644 edi.h
> > create mode 100644 ene.h
> >
> > diff --git a/Makefile b/Makefile
> > index c439d8d..661c52a 100644
> > --- a/Makefile
> > +++ b/Makefile
> > @@ -368,7 +368,7 @@ endif
> >
> > CHIP_OBJS = jedec.o stm50.o w39.o w29ee011.o \
> > sst28sf040.o 82802ab.o \
> > - sst49lfxxxc.o sst_fwhub.o flashchips.o spi.o spi25.o spi25_statusreg.o \
> > + sst49lfxxxc.o sst_fwhub.o edi.o flashchips.o spi.o spi25.o spi25_statusreg.o \
> > opaque.o sfdp.o en29lv640b.o at45db.o
> >
> > ###############################################################################
> > diff --git a/chipdrivers.h b/chipdrivers.h
> > index cac94f3..8015b52 100644
> > --- a/chipdrivers.h
> > +++ b/chipdrivers.h
> > @@ -194,4 +194,10 @@ int erase_sector_stm50(struct flashctx *flash, unsigned int block, unsigned int
> > int probe_en29lv640b(struct flashctx *flash);
> > int write_en29lv640b(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len);
> >
> > +/* edi.c */
> > +int edi_chip_block_erase(struct flashctx *flash, unsigned int page, unsigned int size);
> > +int edi_chip_write(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len);
> > +int edi_chip_read(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len);
> > +int edi_probe_kb9012(struct flashctx *flash);
> > +
> > #endif /* !__CHIPDRIVERS_H__ */
> > diff --git a/edi.c b/edi.c
> > new file mode 100644
> > index 0000000..0ca1704
> > --- /dev/null
> > +++ b/edi.c
> > @@ -0,0 +1,497 @@
> > +/*
> > + * This file is part of the flashrom project.
> > + *
> > + * Copyright (C) 2015 Paul Kocialkowski <contact at paulk.fr>
> > + *
> > + * This program is free software; you can redistribute it and/or modify
> > + * it under the terms of the GNU General Public License as published by
> > + * the Free Software Foundation; either version 2 of the License, or
> > + * (at your option) any later version.
> > + *
> > + * This program is distributed in the hope that it will be useful,
> > + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> > + * GNU General Public License for more details.
> > + */
> > +
> > +#include <string.h>
> > +#include "flash.h"
> > +#include "ene.h"
> > +#include "edi.h"
> > +
> > +static unsigned int edi_read_buffer_length = EDI_READ_BUFFER_LENGTH_DEFAULT;
> > +
> > +static const struct ene_chip ene_kb9012 = {
> > + .hwversion = ENE_KB9012_HWVERSION,
> > + .ediid = ENE_KB9012_EDIID,
> > +};
> > +
> > +static void edi_write_cmd(unsigned char *cmd, unsigned short address, unsigned char data)
> > +{
> > + cmd[0] = EDI_WRITE; /* EDI write command. */
> > + cmd[1] = 0x00; /* Address is only 2 bytes. */
> > + cmd[2] = (address >> 8) & 0xff; /* Address higher byte. */
> > + cmd[3] = (address >> 0) & 0xff; /* Address lower byte. */
> > + cmd[4] = data; /* Write data. */
> > +}
> > +
> > +static void edi_read_cmd(unsigned char *cmd, unsigned short address)
> > +{
> > + cmd[0] = EDI_READ; /* EDI read command. */
> > + cmd[1] = 0x00; /* Address is only 2 bytes. */
> > + cmd[2] = (address >> 8) & 0xff; /* Address higher byte. */
> > + cmd[3] = (address >> 0) & 0xff; /* Address lower byte. */
> > +}
> > +
> > +static int edi_write(struct flashctx *flash, unsigned short address, unsigned char data)
> > +{
> > + unsigned char cmd[5];
> > + int rc;
> > +
> > + edi_write_cmd(cmd, address, data);
> > +
> > + rc = spi_send_command(flash, sizeof(cmd), 0, cmd, NULL);
> > + if (rc)
> > + return -1;
> > +
> > + return 0;
> > +}
> > +
> > +static int edi_read_byte(struct flashctx *flash, unsigned short address, unsigned char *data)
> > +{
> > + unsigned char cmd[4];
> > + unsigned char buffer[edi_read_buffer_length];
> > + unsigned int index;
> > + unsigned int i;
> > + int rc;
> > +
> > + edi_read_cmd(cmd, address);
> > +
> > + rc = spi_send_command(flash, sizeof(cmd), sizeof(buffer), cmd, buffer);
> > + if (rc)
> > + return -1;
> > +
> > + index = 0;
> > +
> > + for (i = 0; i < sizeof(buffer); i++) {
> > + index = i;
> > +
> > + if (buffer[i] == EDI_NOT_READY)
> > + continue;
> > +
> > + if (buffer[i] == EDI_READY) {
> > + if (i == (sizeof(buffer) - 1)) {
> > + /*
> > + * Buffer size was too small for receiving the value.
> > + * This is as good as getting only EDI_NOT_READY.
> > + */
> > +
> > + buffer[i] = EDI_NOT_READY;
> > + break;
> > + }
> > +
> > + *data = buffer[i + 1];
> > + return 0;
> > + }
> > + }
> > +
> > + if (buffer[index] == EDI_NOT_READY)
> > + return -EDI_NOT_READY;
> > +
> > + return -1;
> > +}
> > +
> > +static int edi_read(struct flashctx *flash, unsigned short address, unsigned char *data)
> > +{
> > + int rc;
> > +
> > + do {
> > + rc = edi_read_byte(flash, address, data);
> > + if (rc == -EDI_NOT_READY) {
> > + /*
> > + * Buffer size is increased, one step at a time,
> > + * to hold more data if we only catch EDI_NOT_READY.
> > + * Once CS is deasserted, no more data will be sent by the EC,
> > + * so we cannot keep reading afterwards and have to start a new
> > + * transaction with a longer buffer, to be safe.
> > + */
> > +
> > + if (edi_read_buffer_length < EDI_READ_BUFFER_LENGTH_MAX) {
> > + msg_pwarn("%s: Retrying read with greater buffer length!\n", __func__);
> > + edi_read_buffer_length++;
> > + } else {
> > + msg_perr("%s: Maximum buffer length reached and data still not ready!\n", __func__);
> > + return -1;
> > + }
> > + } else if (rc < 0) {
> > + return -1;
> > + }
> > + } while (rc == -EDI_NOT_READY);
> > +
> > + return 0;
> > +}
> > +
> > +static int edi_disable(struct flashctx *flash)
> > +{
> > + unsigned char cmd = EDI_DISABLE;
> > + int rc;
> > +
> > + rc = spi_send_command(flash, sizeof(cmd), 0, &cmd, NULL);
> > + if (rc)
> > + return -1;
> > +
> > + return 0;
> > +}
> > +
> > +static int edi_chip_probe(struct flashctx *flash, const struct ene_chip *chip)
> > +{
> > + unsigned char hwversion;
> > + unsigned char ediid;
> > + int rc;
> > +
> > + rc = edi_read(flash, ENE_EC_HWVERSION, &hwversion);
> > + if (rc < 0)
> > + return 0;
> > +
> > + rc = edi_read(flash, ENE_EC_EDIID, &ediid);
> > + if (rc < 0)
> > + return 0;
> > +
> > + if (chip->hwversion == hwversion && chip->ediid == ediid)
> > + return 1;
> > +
> > + return 0;
> > +}
> > +
> > +static int edi_spi_enable(struct flashctx *flash)
> > +{
> > + unsigned char buffer;
> > + int rc;
> > +
> > + rc = edi_read(flash, ENE_XBI_EFCFG, &buffer);
> > + if (rc < 0)
> > + return -1;
> > +
> > + buffer |= ENE_XBI_EFCFG_CMD_WE;
> > +
> > + rc = edi_write(flash, ENE_XBI_EFCFG, buffer);
> > + if (rc < 0)
> > + return -1;
> > +
> > + return 0;
> > +}
> > +
> > +static int edi_spi_disable(struct flashctx *flash)
> > +{
> > + unsigned char buffer;
> > + int rc;
> > +
> > + rc = edi_read(flash, ENE_XBI_EFCFG, &buffer);
> > + if (rc < 0)
> > + return -1;
> > +
> > + buffer &= ~ENE_XBI_EFCFG_CMD_WE;
> > +
> > + rc = edi_write(flash, ENE_XBI_EFCFG, buffer);
> > + if (rc < 0)
> > + return -1;
> > +
> > + return 0;
> > +}
> > +
> > +static int edi_spi_busy(struct flashctx *flash)
> > +{
> > + unsigned char buffer;
> > + int rc;
> > +
> > + rc = edi_read(flash, ENE_XBI_EFCFG, &buffer);
> > + if (rc < 0)
> > + return -1;
> > +
> > + return !!(buffer & ENE_XBI_EFCFG_BUSY);
> > +}
> > +
> > +static int edi_spi_address(struct flashctx *flash, unsigned int start, unsigned int address)
> > +{
> > + int rc;
> > +
> > + if ((address == start) || (((address - 1) & 0xff) != (address & 0xff))) {
> > + rc = edi_write(flash, ENE_XBI_EFA0, ((address & 0xff) >> 0));
> > + if (rc < 0)
> > + return -1;
> > + }
> > +
> > + if ((address == start) || (((address - 1) & 0xff00) != (address & 0xff00))) {
> > + rc = edi_write(flash, ENE_XBI_EFA1, ((address & 0xff00) >> 8));
> > + if (rc < 0)
> > + return -1;
> > + }
> > +
> > + if ((address == start) || (((address - 1) & 0xff0000) != (address & 0xff0000))) {
> > + rc = edi_write(flash, ENE_XBI_EFA2, ((address & 0xff0000) >> 16));
> > + if (rc < 0)
> > + return -1;
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static int edi_8051_reset(struct flashctx *flash)
> > +{
> > + unsigned char buffer;
> > + int rc;
> > +
> > + rc = edi_read(flash, ENE_EC_PXCFG, &buffer);
> > + if (rc < 0)
> > + return -1;
> > +
> > + buffer |= ENE_EC_PXCFG_8051_RESET;
> > +
> > + rc = edi_write(flash, ENE_EC_PXCFG, buffer);
> > + if (rc < 0)
> > + return -1;
> > +
> > + return 0;
> > +}
> > +
> > +static int edi_8051_execute(struct flashctx *flash)
> > +{
> > + unsigned char buffer;
> > + int rc;
> > +
> > + rc = edi_read(flash, ENE_EC_PXCFG, &buffer);
> > + if (rc < 0)
> > + return -1;
> > +
> > + buffer &= ~ENE_EC_PXCFG_8051_RESET;
> > +
> > + rc = edi_write(flash, ENE_EC_PXCFG, buffer);
> > + if (rc < 0)
> > + return -1;
> > +
> > + return 0;
> > +}
> > +
> > +int edi_chip_block_erase(struct flashctx *flash, unsigned int page, unsigned int size)
> > +{
> > + unsigned int timeout = 64;
> > + int rc;
> > +
> > + if (size != flash->chip->page_size) {
> > + msg_perr("%s: Block erase size is not page size!\n", __func__);
> > + return -1;
> > + }
> > +
> > + rc = edi_spi_enable(flash);
> > + if (rc < 0) {
> > + msg_perr("%s: Unable to enable SPI!\n", __func__);
> > + return -1;
> > + }
> > +
> > + rc = edi_spi_address(flash, page, page);
> > + if (rc < 0)
> > + return -1;
> > +
> > + rc = edi_write(flash, ENE_XBI_EFCMD, ENE_XBI_EFCMD_ERASE);
> > + if (rc < 0)
> > + return -1;
> > +
> > + while (edi_spi_busy(flash) == 1 && timeout) {
> > + programmer_delay(10);
> > + timeout--;
> > + }
> > +
> > + if (!timeout) {
> > + msg_perr("%s: Timed out waiting for SPI not busy!\n", __func__);
> > + return -1;
> > + }
> > +
> > + rc = edi_spi_disable(flash);
> > + if (rc < 0) {
> > + msg_perr("%s: Unable to disable SPI!\n", __func__);
> > + return -1;
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +int edi_chip_write(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len)
> > +{
> > + unsigned int address = start;
> > + unsigned int pages;
> > + unsigned int timeout;
> > + unsigned int i, j;
> > + int rc;
> > +
> > + if ((start % flash->chip->page_size) != 0) {
> > + msg_perr("%s: Start address is not page-aligned!\n", __func__);
> > + return -1;
> > + }
> > +
> > + if ((len % flash->chip->page_size) != 0) {
> > + msg_perr("%s: Length is not page-aligned!\n", __func__);
> > + return -1;
> > + }
> > +
> > + pages = len / flash->chip->page_size;
> > +
> > + rc = edi_spi_enable(flash);
> > + if (rc < 0) {
> > + msg_perr("%s: Unable to enable SPI!\n", __func__);
> > + return -1;
> > + }
> > +
> > + for (i = 0; i < pages; i++) {
> > + timeout = 64;
> > +
> > + /* Clear page buffer. */
> > + rc = edi_write(flash, ENE_XBI_EFCMD, ENE_XBI_EFCMD_HVPL_CLEAR);
> > + if (rc < 0)
> > + return -1;
> > +
> > + for (j = 0; j < flash->chip->page_size; j++) {
> > + rc = edi_spi_address(flash, start, address);
> > + if (rc < 0)
> > + return -1;
> > +
> > + rc = edi_write(flash, ENE_XBI_EFDAT, *buf);
> > + if (rc < 0)
> > + return -1;
> > +
> > + rc = edi_write(flash, ENE_XBI_EFCMD, ENE_XBI_EFCMD_HVPL_LATCH);
> > + if (rc < 0)
> > + return -1;
> > +
> > + buf++;
> > + address++;
> > + }
> > +
> > + /* Program page buffer to flash. */
> > + rc = edi_write(flash, ENE_XBI_EFCMD, ENE_XBI_EFCMD_PROGRAM);
> > + if (rc < 0)
> > + return -1;
> > +
> > + while (edi_spi_busy(flash) == 1 && timeout) {
> > + programmer_delay(10);
> > + timeout--;
> > + }
> > +
> > + if (!timeout) {
> > + msg_perr("%s: Timed out waiting for SPI not busy!\n", __func__);
> > + return -1;
> > + }
> > + }
> > +
> > + rc = edi_spi_disable(flash);
> > + if (rc < 0) {
> > + msg_perr("%s: Unable to disable SPI!\n", __func__);
> > + return -1;
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +int edi_chip_read(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len)
> > +{
> > + unsigned int address = start;
> > + unsigned int i;
> > + unsigned int timeout;
> > + int rc;
> > +
> > + rc = edi_spi_enable(flash);
> > + if (rc < 0) {
> > + msg_perr("%s: Unable to enable SPI!\n", __func__);
> > + return -1;
> > + }
> > +
> > + /*
> > + * EDI brings such a drastic overhead that there is about no need to
> > + * have any delay in between calls. The EDI protocol will handle wait
> > + * I/O times on its own anyway.
> > + */
> > +
> > + for (i = 0; i < len; i++) {
> > + timeout = 64;
> > +
> > + rc = edi_spi_address(flash, start, address);
> > + if (rc < 0)
> > + return -1;
> > +
> > + rc = edi_write(flash, ENE_XBI_EFCMD, ENE_XBI_EFCMD_READ);
> > + if (rc < 0)
> > + return -1;
> > +
> > + do {
> > + rc = edi_read(flash, ENE_XBI_EFDAT, buf);
> > + if (rc == 0)
> > + break;
> > +
> > + /* Just in case. */
> > + while (edi_spi_busy(flash) == 1 && timeout) {
> > + programmer_delay(10);
> > + timeout--;
> > + }
> > +
> > + if (!timeout) {
> > + msg_perr("%s: Timed out waiting for SPI not busy!\n", __func__);
> > + return -1;
> > + }
> > + } while (1);
> > +
> > + buf++;
> > + address++;
> > + }
> > +
> > + rc = edi_spi_disable(flash);
> > + if (rc < 0) {
> > + msg_perr("%s: Unable to disable SPI!\n", __func__);
> > + return -1;
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +int edi_shutdown(void *data)
> > +{
> > + struct flashctx *flash;
> > + int rc;
> > +
> > + if (data == NULL)
> > + return -1;
> > +
> > + flash = (struct flashctx *)data;
> > +
> > + rc = edi_8051_execute(flash);
> > + if (rc < 0) {
> > + msg_perr("%s: Unable to execute 8051!\n", __func__);
> > + return -1;
> > + }
> > +
> > + rc = edi_disable(flash);
> > + if (rc < 0) {
> > + msg_perr("%s: Unable to disable EDI!\n", __func__);
> > + return -1;
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +int edi_probe_kb9012(struct flashctx *flash)
> > +{
> > + int probe;
> > + int rc;
> > +
> > + probe = edi_chip_probe(flash, &ene_kb9012);
> > + if (!probe)
> > + return 0;
> > +
> > + rc = edi_8051_reset(flash);
> > + if (rc < 0) {
> > + msg_perr("%s: Unable to reset 8051!\n", __func__);
> > + return 0;
> > + }
> > +
> > + register_shutdown(edi_shutdown, (void *)flash);
> > +
> > + return 1;
> > +}
> > diff --git a/edi.h b/edi.h
> > new file mode 100644
> > index 0000000..542bf26
> > --- /dev/null
> > +++ b/edi.h
> > @@ -0,0 +1,30 @@
> > +/*
> > + * This file is part of the flashrom project.
> > + *
> > + * Copyright (C) 2015 Paul Kocialkowski <contact at paulk.fr>
> > + *
> > + * This program is free software; you can redistribute it and/or modify
> > + * it under the terms of the GNU General Public License as published by
> > + * the Free Software Foundation; either version 2 of the License, or
> > + * (at your option) any later version.
> > + *
> > + * This program is distributed in the hope that it will be useful,
> > + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> > + * GNU General Public License for more details.
> > + */
> > +
> > +#ifndef __EDI_H__
> > +#define __EDI_H__ 1
> > +
> > +#define EDI_READ 0x30
> > +#define EDI_WRITE 0x40
> > +#define EDI_DISABLE 0xf3
> > +
> > +#define EDI_NOT_READY 0x5f
> > +#define EDI_READY 0x50
> > +
> > +#define EDI_READ_BUFFER_LENGTH_DEFAULT 3
> > +#define EDI_READ_BUFFER_LENGTH_MAX 32
> > +
> > +#endif
> > diff --git a/ene.h b/ene.h
> > new file mode 100644
> > index 0000000..e03e49b
> > --- /dev/null
> > +++ b/ene.h
> > @@ -0,0 +1,51 @@
> > +/*
> > + * This file is part of the flashrom project.
> > + *
> > + * Copyright (C) 2015 Paul Kocialkowski <contact at paulk.fr>
> > + *
> > + * This program is free software; you can redistribute it and/or modify
> > + * it under the terms of the GNU General Public License as published by
> > + * the Free Software Foundation; either version 2 of the License, or
> > + * (at your option) any later version.
> > + *
> > + * This program is distributed in the hope that it will be useful,
> > + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> > + * GNU General Public License for more details.
> > + */
> > +
> > +#ifndef __ENE_H__
> > +#define __ENE_H__ 1
> > +
> > +#define ENE_XBI_EFA0 0xfea8
> > +#define ENE_XBI_EFA1 0xfea9
> > +#define ENE_XBI_EFA2 0xfeaa
> > +#define ENE_XBI_EFDAT 0xfeab
> > +#define ENE_XBI_EFCMD 0xfeac
> > +#define ENE_XBI_EFCFG 0xfead
> > +
> > +#define ENE_XBI_EFCFG_CMD_WE (1 << 3)
> > +#define ENE_XBI_EFCFG_BUSY (1 << 1)
> > +
> > +#define ENE_XBI_EFCMD_HVPL_LATCH 0x02
> > +#define ENE_XBI_EFCMD_READ 0x03
> > +#define ENE_XBI_EFCMD_ERASE 0x20
> > +#define ENE_XBI_EFCMD_PROGRAM 0x70
> > +#define ENE_XBI_EFCMD_HVPL_CLEAR 0x80
> > +
> > +#define ENE_EC_PXCFG 0xff14
> > +
> > +#define ENE_EC_PXCFG_8051_RESET 0x01
> > +
> > +#define ENE_EC_HWVERSION 0xff00
> > +#define ENE_EC_EDIID 0xff24
> > +
> > +#define ENE_KB9012_HWVERSION 0xc3
> > +#define ENE_KB9012_EDIID 0x04
> > +
> > +struct ene_chip {
> > + unsigned char hwversion;
> > + unsigned char ediid;
> > +};
> > +
> > +#endif
> > diff --git a/flashchips.c b/flashchips.c
> > index 574ad74..13f0574 100644
> > --- a/flashchips.c
> > +++ b/flashchips.c
> > @@ -3201,6 +3201,29 @@ const struct flashchip flashchips[] = {
> > },
> >
> > {
> > + .vendor = "ENE",
> > + .name = "KB9012 (EDI)",
> > + .bustype = BUS_SPI,
> > + .total_size = 128,
> > + .page_size = 128,
> > + .feature_bits = FEATURE_ERASED_ZERO,
> > + .tested = TEST_OK_PREW,
> > + .probe = edi_probe_kb9012,
> > + .probe_timing = TIMING_ZERO,
> > + .block_erasers =
> > + {
> > + {
> > + .eraseblocks = { {128, 1024} },
> > + .block_erase = edi_chip_block_erase,
> > + },
> > + },
> > + .gran = write_gran_128bytes,
> > + .write = edi_chip_write,
> > + .read = edi_chip_read,
> > + .voltage = {2700, 3600},
> > + },
> > +
> > + {
> > .vendor = "ESMT",
> > .name = "F49B002UA",
> > .bustype = BUS_PARALLEL,
> >
>
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