[flashrom] [commit] r1840 - trunk
repository service
svn at flashrom.org
Fri Aug 8 10:33:02 CEST 2014
Author: stefanct
Date: Fri Aug 8 10:33:01 2014
New Revision: 1840
URL: http://flashrom.org/trac/flashrom/changeset/1840
Log:
Unify non-shifted and shifted JEDEC access.
Some Parallel bus chips have a 16-bit mode and an 8-bit mode. They use
normal JEDEC addresses for 16-bit mode and shifted addresses (by 1 bit)
for 8-bit mode. Some programmers can access them in 16-bit mode, but on
all flashrom-supported programmers so far, we access them in 8-bit mode.
This means we have to shift the addresses but apart from the addresses
we can share the code.
This patch makes this possible by checking the chip's FEATURE_ADDR_SHIFTED
flag in common JEDEC functions and applying the right addresses respectively.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006 at gmx.net>
Signed-off-by: Stefan Tauner <stefan.tauner at alumni.tuwien.ac.at>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006 at gmx.net>
Deleted:
trunk/m29f400bt.c
Modified:
trunk/82802ab.c
trunk/Makefile
trunk/chipdrivers.h
trunk/en29lv640b.c
trunk/flashchips.c
trunk/jedec.c
Modified: trunk/82802ab.c
==============================================================================
--- trunk/82802ab.c Wed Aug 6 17:09:15 2014 (r1839)
+++ trunk/82802ab.c Fri Aug 8 10:33:01 2014 (r1840)
@@ -44,7 +44,7 @@
{
chipaddr bios = flash->virtual_memory;
uint8_t id1, id2, flashcontent1, flashcontent2;
- int shifted = (flash->chip->feature_bits & FEATURE_ADDR_SHIFTED) != 0;
+ int shifted = (flash->chip->feature_bits & FEATURE_ADDR_SHIFTED) ? 1 : 0;
/* Reset to get a clean state */
chip_writeb(flash, 0xFF, bios);
Modified: trunk/Makefile
==============================================================================
--- trunk/Makefile Wed Aug 6 17:09:15 2014 (r1839)
+++ trunk/Makefile Fri Aug 8 10:33:01 2014 (r1840)
@@ -351,7 +351,7 @@
# Flash chip drivers and bus support infrastructure.
CHIP_OBJS = jedec.o stm50.o w39.o w29ee011.o \
- sst28sf040.o m29f400bt.o 82802ab.o \
+ sst28sf040.o 82802ab.o \
sst49lfxxxc.o sst_fwhub.o flashchips.o spi.o spi25.o spi25_statusreg.o \
opaque.o sfdp.o en29lv640b.o at45db.o
Modified: trunk/chipdrivers.h
==============================================================================
--- trunk/chipdrivers.h Wed Aug 6 17:09:15 2014 (r1839)
+++ trunk/chipdrivers.h Fri Aug 8 10:33:01 2014 (r1840)
@@ -155,10 +155,6 @@
int printlock_regspace2_block_eraser_0(struct flashctx *flash);
int printlock_regspace2_block_eraser_1(struct flashctx *flash);
-/* m29f400bt.c */
-int probe_m29f400bt(struct flashctx *flash);
-int write_m29f400bt(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len);
-
/* sst28sf040.c */
int erase_chip_28sf040(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
int erase_sector_28sf040(struct flashctx *flash, unsigned int address, unsigned int sector_size);
@@ -197,8 +193,6 @@
/* en29lv640b.c */
int probe_en29lv640b(struct flashctx *flash);
-int erase_block_shifted_jedec(struct flashctx *flash, unsigned int start, unsigned int len);
-int erase_chip_block_shifted_jedec(struct flashctx *flash, unsigned int start, unsigned int len);
int write_en29lv640b(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len);
#endif /* !__CHIPDRIVERS_H__ */
Modified: trunk/en29lv640b.c
==============================================================================
--- trunk/en29lv640b.c Wed Aug 6 17:09:15 2014 (r1839)
+++ trunk/en29lv640b.c Fri Aug 8 10:33:01 2014 (r1840)
@@ -85,51 +85,3 @@
return 0;
}
-
-static int erase_chip_shifted_jedec(struct flashctx *flash)
-{
- chipaddr bios = flash->virtual_memory;
-
- chip_writeb(flash, 0xAA, bios + 0xAAA);
- chip_writeb(flash, 0x55, bios + 0x555);
- chip_writeb(flash, 0x80, bios + 0xAAA);
-
- chip_writeb(flash, 0xAA, bios + 0xAAA);
- chip_writeb(flash, 0x55, bios + 0x555);
- chip_writeb(flash, 0x10, bios + 0xAAA);
-
- programmer_delay(10);
- toggle_ready_jedec(flash, bios);
-
- /* FIXME: Check the status register for errors. */
- return 0;
-}
-
-int erase_block_shifted_jedec(struct flashctx *flash, unsigned int start, unsigned int len)
-{
- chipaddr bios = flash->virtual_memory;
- chipaddr dst = bios + start;
-
- chip_writeb(flash, 0xAA, bios + 0xAAA);
- chip_writeb(flash, 0x55, bios + 0x555);
- chip_writeb(flash, 0x80, bios + 0xAAA);
-
- chip_writeb(flash, 0xAA, bios + 0xAAA);
- chip_writeb(flash, 0x55, bios + 0x555);
- chip_writeb(flash, 0x30, dst);
-
- programmer_delay(10);
- toggle_ready_jedec(flash, bios);
-
- /* FIXME: Check the status register for errors. */
- return 0;
-}
-
-int erase_chip_block_shifted_jedec(struct flashctx *flash, unsigned int address, unsigned int blocklen)
-{
- if ((address != 0) || (blocklen != flash->chip->total_size * 1024)) {
- msg_cerr("%s called with incorrect arguments\n", __func__);
- return -1;
- }
- return erase_chip_shifted_jedec(flash);
-}
Modified: trunk/flashchips.c
==============================================================================
--- trunk/flashchips.c Wed Aug 6 17:09:15 2014 (r1839)
+++ trunk/flashchips.c Fri Aug 8 10:33:01 2014 (r1840)
@@ -4869,7 +4869,7 @@
.model_id = EON_EN29LV640B,
.total_size = 8192,
.page_size = 8192,
- .feature_bits = 0,
+ .feature_bits = FEATURE_ADDR_SHIFTED,
.tested = TEST_OK_PREW,
.probe = probe_en29lv640b,
.probe_timing = TIMING_ZERO, /* Datasheet has no timing info specified */
@@ -4880,10 +4880,10 @@
{8 * 1024, 8},
{64 * 1024, 127},
},
- .block_erase = erase_block_shifted_jedec,
+ .block_erase = erase_block_jedec,
}, {
.eraseblocks = { {8 * 1024 * 1024, 1} },
- .block_erase = erase_chip_block_shifted_jedec,
+ .block_erase = erase_chip_block_jedec,
},
},
.write = write_en29lv640b,
@@ -5078,10 +5078,10 @@
.model_id = FUJITSU_MBM29F400BC,
.total_size = 512,
.page_size = 64 * 1024,
- .feature_bits = FEATURE_ADDR_SHIFTED | FEATURE_EITHER_RESET,
+ .feature_bits = FEATURE_ADDR_SHIFTED | FEATURE_ADDR_2AA | FEATURE_EITHER_RESET,
.tested = TEST_UNTESTED,
- .probe = probe_m29f400bt,
- .probe_timing = TIMING_IGNORED, /* routine doesn't use probe_timing (m29f400bt.c) */
+ .probe = probe_jedec,
+ .probe_timing = 10, // FIXME: check datasheet. Using the 10 us from probe_m29f400bt
.block_erasers =
{
{
@@ -5091,13 +5091,13 @@
{32 * 1024, 1},
{64 * 1024, 7},
},
- .block_erase = erase_block_shifted_jedec,
+ .block_erase = erase_sector_jedec,
}, {
.eraseblocks = { {512 * 1024, 1} },
- .block_erase = erase_chip_block_shifted_jedec,
+ .block_erase = erase_chip_block_jedec,
},
},
- .write = write_m29f400bt,
+ .write = write_jedec_1,
.read = read_memmapped,
.voltage = {4750, 5250}, /* 4.75-5.25V for type -55, others 4.5-5.5V */
},
@@ -5110,10 +5110,10 @@
.model_id = FUJITSU_MBM29F400TC,
.total_size = 512,
.page_size = 64 * 1024,
- .feature_bits = FEATURE_ADDR_SHIFTED | FEATURE_EITHER_RESET,
+ .feature_bits = FEATURE_ADDR_SHIFTED | FEATURE_ADDR_AAA | FEATURE_EITHER_RESET,
.tested = TEST_UNTESTED,
- .probe = probe_m29f400bt,
- .probe_timing = TIMING_IGNORED, /* routine doesn't use probe_timing (m29f400bt.c) */
+ .probe = probe_jedec,
+ .probe_timing = 10, // FIXME: check datasheet. Using the 10 us from probe_m29f400bt
.block_erasers =
{
{
@@ -5123,13 +5123,13 @@
{8 * 1024, 2},
{16 * 1024, 1},
},
- .block_erase = erase_block_shifted_jedec,
+ .block_erase = erase_sector_jedec,
}, {
.eraseblocks = { {512 * 1024, 1} },
- .block_erase = erase_chip_block_shifted_jedec,
+ .block_erase = erase_chip_block_jedec,
},
},
- .write = write_m29f400bt,
+ .write = write_jedec_1,
.read = read_memmapped,
.voltage = {4750, 5250}, /* 4.75-5.25V for type -55, others 4.5-5.5V */
},
@@ -5144,8 +5144,8 @@
.page_size = 0,
.feature_bits = FEATURE_ADDR_SHIFTED | FEATURE_SHORT_RESET,
.tested = TEST_UNTESTED,
- .probe = probe_m29f400bt,
- .probe_timing = TIMING_IGNORED,
+ .probe = probe_jedec,
+ .probe_timing = 10, // FIXME: check datasheet. Using the 10 us from probe_m29f400bt
.block_erasers =
{
{
@@ -5155,13 +5155,13 @@
{32 * 1024, 1},
{64 * 1024, 31},
},
- .block_erase = erase_block_shifted_jedec,
+ .block_erase = erase_block_jedec,
}, {
.eraseblocks = { {2048 * 1024, 1} },
- .block_erase = erase_chip_block_shifted_jedec,
+ .block_erase = erase_chip_block_jedec,
},
},
- .write = write_m29f400bt, /* Supports a fast mode too */
+ .write = write_jedec_1, /* Supports a fast mode too */
.read = read_memmapped,
.voltage = {3000, 3600}, /* 3.0-3.6V for type -70, others 2.7-3.6V */
},
@@ -5176,8 +5176,8 @@
.page_size = 0,
.feature_bits = FEATURE_ADDR_SHIFTED | FEATURE_SHORT_RESET,
.tested = TEST_UNTESTED,
- .probe = probe_m29f400bt,
- .probe_timing = TIMING_IGNORED,
+ .probe = probe_jedec,
+ .probe_timing = 10, // FIXME: check datasheet. Using the 10 us from probe_m29f400bt
.block_erasers =
{
{
@@ -5187,13 +5187,13 @@
{8 * 1024, 2},
{16 * 1024, 1},
},
- .block_erase = erase_block_shifted_jedec,
+ .block_erase = erase_block_jedec,
}, {
.eraseblocks = { {2048 * 1024, 1} },
- .block_erase = erase_chip_block_shifted_jedec,
+ .block_erase = erase_chip_block_jedec,
},
},
- .write = write_m29f400bt, /* Supports a fast mode too */
+ .write = write_jedec_1, /* Supports a fast mode too */
.read = read_memmapped,
.voltage = {3000, 3600}, /* 3.0-3.6V for type -70, others 2.7-3.6V */
},
@@ -12178,10 +12178,10 @@
.model_id = ST_M29F400BB,
.total_size = 512,
.page_size = 64 * 1024,
- .feature_bits = FEATURE_ADDR_SHIFTED | FEATURE_EITHER_RESET,
+ .feature_bits = FEATURE_ADDR_SHIFTED | FEATURE_ADDR_2AA | FEATURE_EITHER_RESET,
.tested = TEST_UNTESTED,
- .probe = probe_m29f400bt,
- .probe_timing = TIMING_IGNORED, /* routine doesn't use probe_timing (m29f400bt.c) */
+ .probe = probe_jedec,
+ .probe_timing = 10, // FIXME: check datasheet. Using the 10 us from probe_m29f400bt
.block_erasers =
{
{
@@ -12191,13 +12191,13 @@
{32 * 1024, 1},
{64 * 1024, 7},
},
- .block_erase = erase_block_shifted_jedec,
+ .block_erase = erase_sector_jedec,
}, {
.eraseblocks = { {512 * 1024, 1} },
- .block_erase = erase_chip_block_shifted_jedec,
+ .block_erase = erase_chip_block_jedec,
}
},
- .write = write_m29f400bt,
+ .write = write_jedec_1,
.read = read_memmapped,
.voltage = {4500, 5500},
},
@@ -12210,10 +12210,10 @@
.model_id = ST_M29F400BT,
.total_size = 512,
.page_size = 64 * 1024,
- .feature_bits = FEATURE_ADDR_SHIFTED | FEATURE_EITHER_RESET,
+ .feature_bits = FEATURE_ADDR_SHIFTED | FEATURE_ADDR_2AA | FEATURE_EITHER_RESET,
.tested = TEST_UNTESTED,
- .probe = probe_m29f400bt,
- .probe_timing = TIMING_IGNORED, /* routine doesn't use probe_timing (m29f400bt.c) */
+ .probe = probe_jedec,
+ .probe_timing = 10, // FIXME: check datasheet. Using the 10 us from probe_m29f400bt
.block_erasers =
{
{
@@ -12223,13 +12223,13 @@
{8 * 1024, 2},
{16 * 1024, 1},
},
- .block_erase = erase_block_shifted_jedec,
+ .block_erase = erase_sector_jedec,
}, {
.eraseblocks = { {512 * 1024, 1} },
- .block_erase = erase_chip_block_shifted_jedec,
+ .block_erase = erase_chip_block_jedec,
}
},
- .write = write_m29f400bt,
+ .write = write_jedec_1,
.read = read_memmapped,
.voltage = {4500, 5500},
},
Modified: trunk/jedec.c
==============================================================================
--- trunk/jedec.c Wed Aug 6 17:09:15 2014 (r1839)
+++ trunk/jedec.c Fri Aug 8 10:33:01 2014 (r1840)
@@ -4,7 +4,7 @@
* Copyright (C) 2000 Silicon Integrated System Corporation
* Copyright (C) 2006 Giampiero Giancipoli <gianci at email.it>
* Copyright (C) 2006 coresystems GmbH <info at coresystems.de>
- * Copyright (C) 2007, 2011 Carl-Daniel Hailfinger
+ * Copyright (C) 2007-2012 Carl-Daniel Hailfinger
* Copyright (C) 2009 Sean Nelson <audiohacked at gmail.com>
* Copyright (C) 2014 Stefan Tauner
*
@@ -116,9 +116,11 @@
static void start_program_jedec_common(const struct flashctx *flash, unsigned int mask)
{
chipaddr bios = flash->virtual_memory;
- chip_writeb(flash, 0xAA, bios + (0x5555 & mask));
- chip_writeb(flash, 0x55, bios + (0x2AAA & mask));
- chip_writeb(flash, 0xA0, bios + (0x5555 & mask));
+ bool shifted = (flash->chip->feature_bits & FEATURE_ADDR_SHIFTED);
+
+ chip_writeb(flash, 0xAA, bios + ((shifted ? 0x2AAA : 0x5555) & mask));
+ chip_writeb(flash, 0x55, bios + ((shifted ? 0x5555 : 0x2AAA) & mask));
+ chip_writeb(flash, 0xA0, bios + ((shifted ? 0x2AAA : 0x5555) & mask));
}
int probe_jedec_29gl(struct flashctx *flash)
@@ -174,6 +176,7 @@
{
chipaddr bios = flash->virtual_memory;
const struct flashchip *chip = flash->chip;
+ bool shifted = (flash->chip->feature_bits & FEATURE_ADDR_SHIFTED);
uint8_t id1, id2;
uint32_t largeid1, largeid2;
uint32_t flashcontent1, flashcontent2;
@@ -203,31 +206,31 @@
/* Reset chip to a clean slate */
if ((chip->feature_bits & FEATURE_RESET_MASK) == FEATURE_LONG_RESET)
{
- chip_writeb(flash, 0xAA, bios + (0x5555 & mask));
+ chip_writeb(flash, 0xAA, bios + ((shifted ? 0x2AAA : 0x5555) & mask));
if (probe_timing_exit)
programmer_delay(10);
- chip_writeb(flash, 0x55, bios + (0x2AAA & mask));
+ chip_writeb(flash, 0x55, bios + ((shifted ? 0x5555 : 0x2AAA) & mask));
if (probe_timing_exit)
programmer_delay(10);
}
- chip_writeb(flash, 0xF0, bios + (0x5555 & mask));
+ chip_writeb(flash, 0xF0, bios + ((shifted ? 0x2AAA : 0x5555) & mask));
if (probe_timing_exit)
programmer_delay(probe_timing_exit);
/* Issue JEDEC Product ID Entry command */
- chip_writeb(flash, 0xAA, bios + (0x5555 & mask));
+ chip_writeb(flash, 0xAA, bios + ((shifted ? 0x2AAA : 0x5555) & mask));
if (probe_timing_enter)
programmer_delay(10);
- chip_writeb(flash, 0x55, bios + (0x2AAA & mask));
+ chip_writeb(flash, 0x55, bios + ((shifted ? 0x5555 : 0x2AAA) & mask));
if (probe_timing_enter)
programmer_delay(10);
- chip_writeb(flash, 0x90, bios + (0x5555 & mask));
+ chip_writeb(flash, 0x90, bios + ((shifted ? 0x2AAA : 0x5555) & mask));
if (probe_timing_enter)
programmer_delay(probe_timing_enter);
/* Read product ID */
- id1 = chip_readb(flash, bios);
- id2 = chip_readb(flash, bios + 0x01);
+ id1 = chip_readb(flash, bios + (0x00 << shifted));
+ id2 = chip_readb(flash, bios + (0x01 << shifted));
largeid1 = id1;
largeid2 = id2;
@@ -246,14 +249,14 @@
/* Issue JEDEC Product ID Exit command */
if ((chip->feature_bits & FEATURE_RESET_MASK) == FEATURE_LONG_RESET)
{
- chip_writeb(flash, 0xAA, bios + (0x5555 & mask));
+ chip_writeb(flash, 0xAA, bios + ((shifted ? 0x2AAA : 0x5555) & mask));
if (probe_timing_exit)
programmer_delay(10);
- chip_writeb(flash, 0x55, bios + (0x2AAA & mask));
+ chip_writeb(flash, 0x55, bios + ((shifted ? 0x5555 : 0x2AAA) & mask));
if (probe_timing_exit)
programmer_delay(10);
}
- chip_writeb(flash, 0xF0, bios + (0x5555 & mask));
+ chip_writeb(flash, 0xF0, bios + ((shifted ? 0x2AAA : 0x5555) & mask));
if (probe_timing_exit)
programmer_delay(probe_timing_exit);
@@ -262,8 +265,8 @@
msg_cdbg(", id1 parity violation");
/* Read the product ID location again. We should now see normal flash contents. */
- flashcontent1 = chip_readb(flash, bios);
- flashcontent2 = chip_readb(flash, bios + 0x01);
+ flashcontent1 = chip_readb(flash, bios + (0x00 << shifted));
+ flashcontent2 = chip_readb(flash, bios + (0x01 << shifted));
/* Check if it is a continuation ID, this should be a while loop. */
if (flashcontent1 == 0x7F) {
@@ -294,21 +297,23 @@
unsigned int pagesize, unsigned int mask)
{
chipaddr bios = flash->virtual_memory;
+ bool shifted = (flash->chip->feature_bits & FEATURE_ADDR_SHIFTED);
unsigned int delay_us = 0;
+
if(flash->chip->probe_timing != TIMING_ZERO)
delay_us = 10;
/* Issue the Sector Erase command */
- chip_writeb(flash, 0xAA, bios + (0x5555 & mask));
+ chip_writeb(flash, 0xAA, bios + ((shifted ? 0x2AAA : 0x5555) & mask));
programmer_delay(delay_us);
- chip_writeb(flash, 0x55, bios + (0x2AAA & mask));
+ chip_writeb(flash, 0x55, bios + ((shifted ? 0x5555 : 0x2AAA) & mask));
programmer_delay(delay_us);
- chip_writeb(flash, 0x80, bios + (0x5555 & mask));
+ chip_writeb(flash, 0x80, bios + ((shifted ? 0x2AAA : 0x5555) & mask));
programmer_delay(delay_us);
- chip_writeb(flash, 0xAA, bios + (0x5555 & mask));
+ chip_writeb(flash, 0xAA, bios + ((shifted ? 0x2AAA : 0x5555) & mask));
programmer_delay(delay_us);
- chip_writeb(flash, 0x55, bios + (0x2AAA & mask));
+ chip_writeb(flash, 0x55, bios + ((shifted ? 0x5555 : 0x2AAA) & mask));
programmer_delay(delay_us);
chip_writeb(flash, 0x30, bios + page);
programmer_delay(delay_us);
@@ -324,21 +329,23 @@
unsigned int blocksize, unsigned int mask)
{
chipaddr bios = flash->virtual_memory;
+ bool shifted = (flash->chip->feature_bits & FEATURE_ADDR_SHIFTED);
unsigned int delay_us = 0;
+
if(flash->chip->probe_timing != TIMING_ZERO)
delay_us = 10;
/* Issue the Sector Erase command */
- chip_writeb(flash, 0xAA, bios + (0x5555 & mask));
+ chip_writeb(flash, 0xAA, bios + ((shifted ? 0x2AAA : 0x5555) & mask));
programmer_delay(delay_us);
- chip_writeb(flash, 0x55, bios + (0x2AAA & mask));
+ chip_writeb(flash, 0x55, bios + ((shifted ? 0x5555 : 0x2AAA) & mask));
programmer_delay(delay_us);
- chip_writeb(flash, 0x80, bios + (0x5555 & mask));
+ chip_writeb(flash, 0x80, bios + ((shifted ? 0x2AAA : 0x5555) & mask));
programmer_delay(delay_us);
- chip_writeb(flash, 0xAA, bios + (0x5555 & mask));
+ chip_writeb(flash, 0xAA, bios + ((shifted ? 0x2AAA : 0x5555) & mask));
programmer_delay(delay_us);
- chip_writeb(flash, 0x55, bios + (0x2AAA & mask));
+ chip_writeb(flash, 0x55, bios + ((shifted ? 0x5555 : 0x2AAA) & mask));
programmer_delay(delay_us);
chip_writeb(flash, 0x50, bios + block);
programmer_delay(delay_us);
@@ -353,23 +360,25 @@
static int erase_chip_jedec_common(struct flashctx *flash, unsigned int mask)
{
chipaddr bios = flash->virtual_memory;
+ bool shifted = (flash->chip->feature_bits & FEATURE_ADDR_SHIFTED);
unsigned int delay_us = 0;
+
if(flash->chip->probe_timing != TIMING_ZERO)
delay_us = 10;
/* Issue the JEDEC Chip Erase command */
- chip_writeb(flash, 0xAA, bios + (0x5555 & mask));
+ chip_writeb(flash, 0xAA, bios + ((shifted ? 0x2AAA : 0x5555) & mask));
programmer_delay(delay_us);
- chip_writeb(flash, 0x55, bios + (0x2AAA & mask));
+ chip_writeb(flash, 0x55, bios + ((shifted ? 0x5555 : 0x2AAA) & mask));
programmer_delay(delay_us);
- chip_writeb(flash, 0x80, bios + (0x5555 & mask));
+ chip_writeb(flash, 0x80, bios + ((shifted ? 0x2AAA : 0x5555) & mask));
programmer_delay(delay_us);
- chip_writeb(flash, 0xAA, bios + (0x5555 & mask));
+ chip_writeb(flash, 0xAA, bios + ((shifted ? 0x2AAA : 0x5555) & mask));
programmer_delay(delay_us);
- chip_writeb(flash, 0x55, bios + (0x2AAA & mask));
+ chip_writeb(flash, 0x55, bios + ((shifted ? 0x5555 : 0x2AAA) & mask));
programmer_delay(delay_us);
- chip_writeb(flash, 0x10, bios + (0x5555 & mask));
+ chip_writeb(flash, 0x10, bios + ((shifted ? 0x2AAA : 0x5555) & mask));
programmer_delay(delay_us);
toggle_ready_jedec_slow(flash, bios);
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