- In cfi_probe() iterate over all chip widths for every port width to find
x8/x16 configurations, or two x8 chips forming a x16 port width. - The offset in cfi_cmd() is now always given for 64-bit port width. It will be scaled down for the actual port width to avoid problems with 0x2aa -> 0x554 instead of 0x555. - Added missing cfi_reset_default() in cfi_jedec_id(). The reset is needed, because the chip was still in CFI-Query mode. - Removed everything dealing with cfi_opmodes. It only complicates things and I found no reason for keeping them. The port width and chip width is known, so I just introduced a new cfi_read_qry() function which reads a single word using bus_space_read_N() from the QRY structure, which can be checked for 'Q', 'R' and 'Y'. That's all we need, before reading and unpacking the whole QRY and PRI structures. - Added two new fields, cfi_unlock_addr1 and cfi_unlock_addr2 to the cfi struct. The unlock offsets should be kept variable, depending on the manufacturer or command set version. Changes have been discussed with cliff@.
This commit is contained in:
phx
parent
a88be5a1e4
commit
9a36cd1663
@ -1,4 +1,4 @@
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/* $NetBSD: cfi.c,v 1.6 2011/08/02 03:37:25 cliff Exp $ */
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/* $NetBSD: cfi.c,v 1.7 2011/12/17 19:42:41 phx Exp $ */
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/*-
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* Copyright (c) 2011 The NetBSD Foundation, Inc.
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* All rights reserved.
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@ -33,7 +33,7 @@
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#include "opt_cfi.h"
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: cfi.c,v 1.6 2011/08/02 03:37:25 cliff Exp $");
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__KERNEL_RCSID(0, "$NetBSD: cfi.c,v 1.7 2011/12/17 19:42:41 phx Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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@ -48,7 +48,6 @@ __KERNEL_RCSID(0, "$NetBSD: cfi.c,v 1.6 2011/08/02 03:37:25 cliff Exp $");
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#include <dev/nor/cfi_0002.h>
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static bool cfi_chip_query(struct cfi * const);
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static int cfi_scan_media(device_t self, struct nor_chip *chip);
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static void cfi_init(device_t);
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static void cfi_select(device_t, bool);
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@ -64,9 +63,7 @@ static void cfi_write_4(device_t, flash_off_t, uint32_t);
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static void cfi_write_buf_1(device_t, flash_off_t, const uint8_t *, size_t);
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static void cfi_write_buf_2(device_t, flash_off_t, const uint16_t *, size_t);
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static void cfi_write_buf_4(device_t, flash_off_t, const uint32_t *, size_t);
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static void cfi_jedec_id_1(struct cfi * const );
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static void cfi_jedec_id_2(struct cfi * const );
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static void cfi_jedec_id_4(struct cfi * const );
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static uint8_t cfi_read_qry(struct cfi * const, bus_size_t);
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static bool cfi_jedec_id(struct cfi * const);
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static bool cfi_emulate(struct cfi * const);
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static const struct cfi_jedec_tab * cfi_jedec_search(struct cfi *);
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@ -76,59 +73,6 @@ static void cfi_jedec_fill(struct cfi * const,
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static void cfi_hexdump(flash_off_t, void * const, u_int, u_int);
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#endif
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/*
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* NOTE these opmode tables are informed by "Table 1. CFI Query Read"
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* in Intel "Common Flash Interface (CFI) and Command Sets"
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* Application Note 646, April 2000
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*
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* Assume the byte order of the flash (and of the signature there)
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* is the same as host byte order. The Intel App. Note describes the
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* little endian variant.
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*
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* XXX down-sized, interleaved & multi-chip opmodes not yet supported
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*/
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#if BYTE_ORDER == BIG_ENDIAN
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/* BIG ENDIAN host */
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/* 1-byte access */
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static const struct cfi_opmodes cfi_opmodes_1[] = {
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{ 0, 0, 0, 0x10, 3, "QRY", "x8 device operating in 8-bit mode" },
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};
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/* 2-byte access */
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static const struct cfi_opmodes cfi_opmodes_2[] = {
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{ 1, 1, 0, 0x20, 6, "\0Q\0R\0Y",
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"x16 device operating in 16-bit mode" },
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};
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/* 4-byte access */
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static const struct cfi_opmodes cfi_opmodes_4[] = {
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{ 2, 2, 0, 0x40, 12, "\0\0\0Q\0\0\0R\0\0\0Y",
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"x32 device operating in 32-bit mode" },
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};
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#else
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/* LITTLE ENDIAN host */
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/* 1-byte access */
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static const struct cfi_opmodes cfi_opmodes_1[] = {
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{ 0, 0, 0, 0x10, 3, "QRY", "x8 device operating in 8-bit mode" },
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};
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/* 2-byte access */
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static const struct cfi_opmodes cfi_opmodes_2[] = {
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{ 1, 1, 0, 0x20, 6, "Q\0R\0Y\0",
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"x16 device operating in 16-bit mode" },
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};
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/* 4-byte access */
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static const struct cfi_opmodes cfi_opmodes_4[] = {
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{ 2, 2, 0, 0x40, 12, "Q\0\0\0R\0\0\0Y\0\0\0",
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"x32 device operating in 32-bit mode" },
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};
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#endif
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#define LOG2_64K 16
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#define LOG2_128K 17
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#define LOG2_256K 18
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@ -166,7 +110,6 @@ const struct cfi_jedec_tab cfi_jedec_tab[] = {
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.jt_write_nbyte_time_max = 0,
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.jt_erase_blk_time_max = 1,
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.jt_erase_chip_time_max = 1,
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.jt_opmode = &cfi_opmodes_1[0],
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},
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{
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.jt_name = "Pm39LV010",
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@ -188,7 +131,6 @@ const struct cfi_jedec_tab cfi_jedec_tab[] = {
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.jt_write_nbyte_time_max = 0,
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.jt_erase_blk_time_max = 1,
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.jt_erase_chip_time_max = 1,
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.jt_opmode = &cfi_opmodes_1[0],
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},
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};
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@ -307,7 +249,7 @@ const struct nor_interface nor_interface_cfi = {
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cfi_unpack_1(data[0x39]); \
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} while (0)
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#define CFI_QRY_UNPACK_COMMON(cfi, data, type, found) \
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#define CFI_QRY_UNPACK_COMMON(cfi, data, type) \
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do { \
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struct cfi_query_data * const qryp = &cfi->cfi_qry_data; \
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\
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@ -321,13 +263,8 @@ const struct nor_interface nor_interface_cfi = {
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(cfi_unpack_1(data[qryp->addr_pri + 2]) == 'I')) { \
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type *pri_data = &data[qryp->addr_pri]; \
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cfi_unpack_pri_0002(qryp, pri_data); \
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found = true; \
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break; \
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} \
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default: \
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printf("%s: unsupported id_pri=%#x\n", \
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__func__, qryp->id_pri); \
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break; /* unknown command set */ \
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} \
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} while (0)
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@ -352,103 +289,49 @@ const struct nor_interface nor_interface_cfi = {
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#endif
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/*
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* cfi_chip_query_opmode - determine operational mode based on QRY signature
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*/
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static bool
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cfi_chip_query_opmode(struct cfi *cfi, uint8_t *data,
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const struct cfi_opmodes *tab, u_int nentries)
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{
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for (u_int i=0; i < nentries; i++) {
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if (memcmp(&data[tab[i].qsa], tab[i].sig, tab[i].len) == 0) {
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cfi->cfi_opmode = &tab[i];
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return true;
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}
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}
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return false;
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}
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static bool
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static void
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cfi_chip_query_1(struct cfi * const cfi)
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{
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uint8_t data[0x80];
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bus_space_read_region_1(cfi->cfi_bst, cfi->cfi_bsh, 0, data,
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__arraycount(data));
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__arraycount(data));
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CFI_DUMP_QRY(0, data, sizeof(data), 1);
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bool found = cfi_chip_query_opmode(cfi, data, cfi_opmodes_1,
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__arraycount(cfi_opmodes_1));
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if (found) {
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CFI_QRY_UNPACK_COMMON(cfi, data, uint8_t, found);
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}
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return found;
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CFI_QRY_UNPACK_COMMON(cfi, data, uint8_t);
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}
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static bool
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static void
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cfi_chip_query_2(struct cfi * const cfi)
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{
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uint16_t data[0x80];
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bus_space_read_region_2(cfi->cfi_bst, cfi->cfi_bsh, 0, data,
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__arraycount(data));
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__arraycount(data));
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CFI_DUMP_QRY(0, data, sizeof(data), 2);
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bool found = cfi_chip_query_opmode(cfi, (uint8_t *)data,
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cfi_opmodes_2, __arraycount(cfi_opmodes_2));
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if (found) {
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CFI_QRY_UNPACK_COMMON(cfi, data, uint16_t, found);
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}
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return found;
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CFI_QRY_UNPACK_COMMON(cfi, data, uint16_t);
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}
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static bool
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static void
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cfi_chip_query_4(struct cfi * const cfi)
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{
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uint32_t data[0x80];
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bus_space_read_region_4(cfi->cfi_bst, cfi->cfi_bsh, 0, data,
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__arraycount(data));
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__arraycount(data));
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CFI_DUMP_QRY(0, data, sizeof(data), 4);
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bool found = cfi_chip_query_opmode(cfi, (uint8_t *)data,
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cfi_opmodes_4, __arraycount(cfi_opmodes_4));
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if (found) {
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CFI_QRY_UNPACK_COMMON(cfi, data, uint32_t, found);
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}
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return found;
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CFI_QRY_UNPACK_COMMON(cfi, data, uint32_t);
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}
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static bool
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static void
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cfi_chip_query_8(struct cfi * const cfi)
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{
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#ifdef NOTYET
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uint64_t data[0x80];
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bus_space_read_region_8(cfi->cfi_bst, cfi->cfi_bsh, 0, data,
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__arraycount(data));
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__arraycount(data));
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CFI_DUMP_QRY(0, data, sizeof(data), 8);
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bool found = cfi_chip_query_opmode(cfi, (uint8_t *)data,
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cfi_opmodes_8, __arraycount(cfi_opmodes_8));
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if (found) {
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CFI_QRY_UNPACK_COMMON(cfi, data, uint64_t, found);
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}
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return found;
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#else
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return false;
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CFI_QRY_UNPACK_COMMON(cfi, data, uint64_t);
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#endif
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}
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@ -460,43 +343,57 @@ cfi_chip_query_8(struct cfi * const cfi)
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static bool
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cfi_chip_query(struct cfi * const cfi)
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{
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bool found = false;
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const bus_size_t cfi_query_offset[] = {
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CFI_QUERY_MODE_ADDRESS,
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CFI_QUERY_MODE_ALT_ADDRESS
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CFI_QUERY_MODE_ADDR,
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CFI_QUERY_MODE_ALT_ADDR
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};
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KASSERT(cfi != NULL);
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KASSERT(cfi->cfi_bst != NULL);
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for (int j=0; !found && j < __arraycount(cfi_query_offset); j++) {
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for (int j=0; j < __arraycount(cfi_query_offset); j++) {
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cfi_reset_default(cfi);
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cfi_cmd(cfi, cfi_query_offset[j], CFI_QUERY_DATA);
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switch(cfi->cfi_portwidth) {
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case 0:
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found = cfi_chip_query_1(cfi);
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break;
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case 1:
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found = cfi_chip_query_2(cfi);
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break;
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case 2:
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found = cfi_chip_query_4(cfi);
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break;
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case 3:
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found = cfi_chip_query_8(cfi);
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break;
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default:
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panic("%s: bad portwidth %d\n",
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__func__, cfi->cfi_portwidth);
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if (cfi_read_qry(cfi, 0x10) == 'Q' &&
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cfi_read_qry(cfi, 0x11) == 'R' &&
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cfi_read_qry(cfi, 0x12) == 'Y') {
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switch(cfi->cfi_portwidth) {
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case 0:
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cfi_chip_query_1(cfi);
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break;
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case 1:
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cfi_chip_query_2(cfi);
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break;
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case 2:
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cfi_chip_query_4(cfi);
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break;
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case 3:
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cfi_chip_query_8(cfi);
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break;
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default:
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panic("%s: bad portwidth %d\n",
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__func__, cfi->cfi_portwidth);
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}
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switch (cfi->cfi_qry_data.id_pri) {
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case 0x0002:
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cfi->cfi_unlock_addr1 = CFI_AMD_UNLOCK_ADDR1;
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cfi->cfi_unlock_addr2 = CFI_AMD_UNLOCK_ADDR2;
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break;
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default:
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DPRINTF(("%s: unsupported CFI cmdset %#04x\n",
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__func__, cfi->cfi_qry_data.id_pri));
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return false;
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}
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cfi->cfi_emulated = false;
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return true;
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}
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}
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if (found)
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cfi->cfi_emulated = false;
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return found;
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return false;
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}
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/*
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@ -508,9 +405,7 @@ cfi_chip_query(struct cfi * const cfi)
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* otherwise fail.
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*
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* NOTE:
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* striped NOR chips design not supported yet,
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* so force portwidth=chipwidth for now
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* eventually permute portwidth seperately
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* striped NOR chips design not supported yet
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*/
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bool
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cfi_probe(struct cfi * const cfi)
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@ -519,17 +414,24 @@ cfi_probe(struct cfi * const cfi)
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KASSERT(cfi != NULL);
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for (u_int cw = 0; cw < 3; cw++) {
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cfi->cfi_portwidth = /* XXX */
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cfi->cfi_chipwidth = cw;
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found = cfi_chip_query(cfi);
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cfi_jedec_id(cfi);
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if (! found)
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found = cfi_emulate(cfi);
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if (found)
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break;
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/* XXX set default unlock address for cfi_jedec_id() */
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cfi->cfi_unlock_addr1 = CFI_AMD_UNLOCK_ADDR1;
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cfi->cfi_unlock_addr2 = CFI_AMD_UNLOCK_ADDR2;
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for (u_int pw = 0; pw < 3; pw++) {
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for (u_int cw = 0; cw <= pw; cw++) {
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cfi->cfi_portwidth = pw;
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cfi->cfi_chipwidth = cw;
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found = cfi_chip_query(cfi);
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cfi_jedec_id(cfi);
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if (! found)
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found = cfi_emulate(cfi);
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if (found)
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goto exit_qry;
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}
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}
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exit_qry:
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cfi_reset_default(cfi); /* exit QRY mode */
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return found;
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}
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@ -539,7 +441,6 @@ cfi_identify(struct cfi * const cfi)
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{
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const bus_space_tag_t bst = cfi->cfi_bst;
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const bus_space_handle_t bsh = cfi->cfi_bsh;
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bool found;
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KASSERT(cfi != NULL);
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KASSERT(bst != NULL);
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@ -548,11 +449,7 @@ cfi_identify(struct cfi * const cfi)
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cfi->cfi_bst = bst; /* restore bus space */
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cfi->cfi_bsh = bsh; /* " " " */
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found = cfi_probe(cfi);
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cfi_reset_default(cfi); /* exit QRY mode */
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return found;
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return cfi_probe(cfi);
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}
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static int
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@ -585,10 +482,6 @@ cfi_scan_media(device_t self, struct nor_chip *chip)
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case 0x0002:
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cfi_0002_init(sc, cfi, chip);
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break;
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default:
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aprint_error_dev(self, "unsupported CFI cmdset %#04x\n",
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cfi->cfi_qry_data.id_pri);
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return -1;
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}
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return 0;
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@ -669,29 +562,48 @@ cfi_write_buf_4(device_t self, flash_off_t offset, const uint32_t *datap,
|
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{
|
||||
}
|
||||
|
||||
/*
|
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* cfi_cmd - write a CFI command word.
|
||||
*
|
||||
* The offset 'off' is given for 64-bit port width and will be scaled
|
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* down to the actual port width of the chip.
|
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* The command word will be constructed out of 'val' regarding port- and
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* chip width.
|
||||
*/
|
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void
|
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cfi_cmd(struct cfi * const cfi, bus_size_t off, uint32_t val)
|
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{
|
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const bus_space_tag_t bst = cfi->cfi_bst;
|
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bus_space_handle_t bsh = cfi->cfi_bsh;
|
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uint64_t cmd;
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int cw, pw;
|
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|
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off <<= cfi->cfi_portwidth;
|
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off >>= 3 - cfi->cfi_portwidth;
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|
||||
DPRINTF(("%s: %p %x %x %x\n", __func__, bst, bsh, off, val));
|
||||
pw = 1 << cfi->cfi_portwidth;
|
||||
cw = 1 << cfi->cfi_chipwidth;
|
||||
cmd = 0;
|
||||
while (pw > 0) {
|
||||
cmd <<= cw << 3;
|
||||
cmd += val;
|
||||
pw -= cw;
|
||||
}
|
||||
|
||||
switch(cfi->cfi_portwidth) {
|
||||
DPRINTF(("%s: %p %x %x %" PRIx64 "\n", __func__, bst, bsh, off, cmd));
|
||||
|
||||
switch (cfi->cfi_portwidth) {
|
||||
case 0:
|
||||
bus_space_write_1(bst, bsh, off, (uint8_t)val);
|
||||
bus_space_write_1(bst, bsh, off, cmd);
|
||||
break;
|
||||
case 1:
|
||||
bus_space_write_2(bst, bsh, off, val);
|
||||
bus_space_write_2(bst, bsh, off, cmd);
|
||||
break;
|
||||
case 2:
|
||||
bus_space_write_4(bst, bsh, off, (uint32_t)val);
|
||||
bus_space_write_4(bst, bsh, off, cmd);
|
||||
break;
|
||||
#ifdef NOTYET
|
||||
case 3:
|
||||
bus_space_write_4(bst, bsh, off, (uint64_t)val);
|
||||
bus_space_write_8(bst, bsh, off, cmd);
|
||||
break;
|
||||
#endif
|
||||
default:
|
||||
@ -700,14 +612,44 @@ cfi_cmd(struct cfi * const cfi, bus_size_t off, uint32_t val)
|
||||
}
|
||||
}
|
||||
|
||||
static uint8_t
|
||||
cfi_read_qry(struct cfi * const cfi, bus_size_t off)
|
||||
{
|
||||
const bus_space_tag_t bst = cfi->cfi_bst;
|
||||
bus_space_handle_t bsh = cfi->cfi_bsh;
|
||||
uint8_t data;
|
||||
|
||||
off <<= cfi->cfi_portwidth;
|
||||
|
||||
switch (cfi->cfi_portwidth) {
|
||||
case 0:
|
||||
data = bus_space_read_1(bst, bsh, off);
|
||||
break;
|
||||
case 1:
|
||||
data = bus_space_read_2(bst, bsh, off);
|
||||
break;
|
||||
case 2:
|
||||
data = bus_space_read_4(bst, bsh, off);
|
||||
break;
|
||||
case 3:
|
||||
data = bus_space_read_8(bst, bsh, off);
|
||||
break;
|
||||
default:
|
||||
data = ~0;
|
||||
break;
|
||||
}
|
||||
return data;
|
||||
}
|
||||
|
||||
/*
|
||||
* cfi_reset_default - when we don't know which command will work, use both
|
||||
*/
|
||||
void
|
||||
cfi_reset_default(struct cfi * const cfi)
|
||||
{
|
||||
cfi_cmd(cfi, CFI_ADDRESS_ANY, CFI_RESET_DATA);
|
||||
cfi_cmd(cfi, CFI_ADDRESS_ANY, CFI_ALT_RESET_DATA);
|
||||
|
||||
cfi_cmd(cfi, CFI_ADDR_ANY, CFI_RESET_DATA);
|
||||
cfi_cmd(cfi, CFI_ADDR_ANY, CFI_ALT_RESET_DATA);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -716,7 +658,8 @@ cfi_reset_default(struct cfi * const cfi)
|
||||
void
|
||||
cfi_reset_std(struct cfi * const cfi)
|
||||
{
|
||||
cfi_cmd(cfi, CFI_ADDRESS_ANY, CFI_RESET_DATA);
|
||||
|
||||
cfi_cmd(cfi, CFI_ADDR_ANY, CFI_RESET_DATA);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -725,7 +668,8 @@ cfi_reset_std(struct cfi * const cfi)
|
||||
void
|
||||
cfi_reset_alt(struct cfi * const cfi)
|
||||
{
|
||||
cfi_cmd(cfi, CFI_ADDRESS_ANY, CFI_ALT_RESET_DATA);
|
||||
|
||||
cfi_cmd(cfi, CFI_ADDR_ANY, CFI_ALT_RESET_DATA);
|
||||
}
|
||||
|
||||
static void
|
||||
@ -815,9 +759,10 @@ cfi_jedec_id(struct cfi * const cfi)
|
||||
|
||||
DPRINTF(("%s\n", __func__));
|
||||
|
||||
cfi_cmd(cfi, 0x555, 0xaa);
|
||||
cfi_cmd(cfi, 0x2aa, 0x55);
|
||||
cfi_cmd(cfi, 0x555, 0x90);
|
||||
cfi_reset_default(cfi);
|
||||
cfi_cmd(cfi, cfi->cfi_unlock_addr1, 0xaa);
|
||||
cfi_cmd(cfi, cfi->cfi_unlock_addr2, 0x55);
|
||||
cfi_cmd(cfi, cfi->cfi_unlock_addr1, 0x90);
|
||||
|
||||
switch(cfi->cfi_portwidth) {
|
||||
case 0:
|
||||
@ -881,7 +826,6 @@ cfi_jedec_fill(struct cfi *cfi, const struct cfi_jedec_tab *jt)
|
||||
{
|
||||
|
||||
cfi->cfi_name = jt->jt_name;
|
||||
cfi->cfi_opmode = jt->jt_opmode;
|
||||
|
||||
struct cfi_query_data *qryp = &cfi->cfi_qry_data;
|
||||
memset(&qryp, 0, sizeof(*qryp));
|
||||
@ -926,7 +870,8 @@ cfi_print(device_t self, struct cfi * const cfi)
|
||||
cfi->cfi_id_data.id_did[0],
|
||||
cfi->cfi_id_data.id_did[1],
|
||||
cfi->cfi_id_data.id_did[2]);
|
||||
aprint_normal_dev(self, "%s\n", cfi->cfi_opmode->str);
|
||||
aprint_normal_dev(self, "x%u device operating in %u-bit mode\n",
|
||||
8 << cfi->cfi_portwidth, 8 << cfi->cfi_chipwidth);
|
||||
aprint_normal_dev(self, "sw bits lo=%#x hi=%#x\n",
|
||||
cfi->cfi_id_data.id_swb_lo,
|
||||
cfi->cfi_id_data.id_swb_hi);
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
/* $NetBSD: cfi.h,v 1.5 2011/08/02 01:11:08 cliff Exp $ */
|
||||
/* $NetBSD: cfi.h,v 1.6 2011/12/17 19:42:41 phx Exp $ */
|
||||
|
||||
#ifndef _CFI_H_
|
||||
#define _CFI_H_
|
||||
@ -120,19 +120,6 @@ struct cfi_jedec_id_data {
|
||||
uint8_t id_swb_hi; /* upper software bits */
|
||||
};
|
||||
|
||||
/*
|
||||
* table entry used to determine operating mode by QRY signature
|
||||
*/
|
||||
struct cfi_opmodes {
|
||||
uint8_t portwidth; /* (1<<N) bytes */
|
||||
uint8_t chipwidth; /* (1<<N) bytes */
|
||||
uint8_t interleave; /* (1<<N) bytes */
|
||||
uint8_t qsa; /* Query Start Address (in bytes) */
|
||||
uint8_t len; /* signature length */
|
||||
const uint8_t *sig; /* signature */
|
||||
const char *str; /* descriptive string */
|
||||
};
|
||||
|
||||
struct cfi; /* fwd ref */
|
||||
|
||||
struct cfi_ops {
|
||||
@ -188,12 +175,12 @@ struct cfi {
|
||||
uint8_t cfi_portwidth; /* port width, 1<<N bytes */
|
||||
uint8_t cfi_chipwidth; /* chip width, 1<<N bytes */
|
||||
bool cfi_emulated; /* ary data are faked */
|
||||
bus_size_t cfi_unlock_addr1;
|
||||
bus_size_t cfi_unlock_addr2;
|
||||
struct cfi_query_data cfi_qry_data; /* CFI Query data */
|
||||
struct cfi_jedec_id_data
|
||||
cfi_id_data; /* JEDEC ID data */
|
||||
const char *cfi_name; /* optional chip name */
|
||||
const struct cfi_opmodes
|
||||
*cfi_opmode;
|
||||
struct cfi_ops cfi_ops; /* chip dependent functions */
|
||||
u_long cfi_yield_time; /* thresh. for yield in wait */
|
||||
#ifdef CFI_0002_STATS
|
||||
@ -230,21 +217,20 @@ struct cfi_jedec_tab {
|
||||
uint8_t jt_write_nbyte_time_max; /* typ<<N msec */
|
||||
uint8_t jt_erase_blk_time_max; /* typ<<N msec */
|
||||
uint8_t jt_erase_chip_time_max; /* typ<<N msec */
|
||||
/* XXX operation mode, perhaps cannot be tabulated */
|
||||
const struct cfi_opmodes
|
||||
*jt_opmode;
|
||||
};
|
||||
|
||||
|
||||
enum {
|
||||
CFI_ADDRESS_ANY = 0x00, /* XXX "don't care" */
|
||||
|
||||
CFI_ADDR_ANY = 0x00*8, /* XXX "don't care" */
|
||||
CFI_RESET_DATA = 0xf0,
|
||||
CFI_ALT_RESET_DATA = 0xff,
|
||||
|
||||
CFI_QUERY_MODE_ADDRESS = 0x55, /* some devices accept anything */
|
||||
CFI_QUERY_MODE_ALT_ADDRESS = 0x555,
|
||||
CFI_QUERY_MODE_ADDR = 0x55*8, /* some devices accept anything */
|
||||
CFI_QUERY_MODE_ALT_ADDR = 0x555*8,
|
||||
CFI_QUERY_DATA = 0x98,
|
||||
|
||||
CFI_AMD_UNLOCK_ADDR1 = 0x555*8,
|
||||
CFI_AMD_UNLOCK_ADDR2 = 0x555*4,
|
||||
};
|
||||
|
||||
static inline void
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
/* $NetBSD: cfi_0002.c,v 1.5 2011/11/23 21:02:28 phx Exp $ */
|
||||
/* $NetBSD: cfi_0002.c,v 1.6 2011/12/17 19:42:41 phx Exp $ */
|
||||
/*-
|
||||
* Copyright (c) 2011 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
@ -31,7 +31,7 @@
|
||||
#include "opt_flash.h"
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__KERNEL_RCSID(0, "$NetBSD: cfi_0002.c,v 1.5 2011/11/23 21:02:28 phx Exp $");
|
||||
__KERNEL_RCSID(0, "$NetBSD: cfi_0002.c,v 1.6 2011/12/17 19:42:41 phx Exp $");
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
@ -291,17 +291,18 @@ cfi_0002_program_page(device_t self, flash_off_t offset, const uint8_t *datap)
|
||||
|
||||
bus_size_t count = chip->nc_page_size >> cfi->cfi_portwidth;
|
||||
/* #words/page */
|
||||
bus_size_t sa = offset >> cfi->cfi_portwidth; /* sector addr */
|
||||
bus_size_t sa = offset << (3 - cfi->cfi_portwidth);
|
||||
/* sector addr */
|
||||
uint32_t wc = count - 1; /* #words - 1 */
|
||||
|
||||
int error = cfi_0002_busy_wait(cfi, offset, cfi_0002_time_dflt(cfi));
|
||||
if (error != 0)
|
||||
return ETIMEDOUT;
|
||||
|
||||
cfi_cmd(cfi, 0x555, 0xaa); /* unlock 1 */
|
||||
cfi_cmd(cfi, 0x2aa, 0x55); /* unlock 2 */
|
||||
cfi_cmd(cfi, sa, 0x25); /* Write To Buffer */
|
||||
cfi_cmd(cfi, sa, wc);
|
||||
cfi_cmd(cfi, cfi->cfi_unlock_addr1, 0xaa);
|
||||
cfi_cmd(cfi, cfi->cfi_unlock_addr2, 0x55);
|
||||
cfi_cmd(cfi, sa, 0x25); /* Write To Buffer */
|
||||
cfi_cmd(cfi, sa, wc);
|
||||
|
||||
switch(cfi->cfi_portwidth) {
|
||||
case 0:
|
||||
@ -320,7 +321,7 @@ cfi_0002_program_page(device_t self, flash_off_t offset, const uint8_t *datap)
|
||||
panic("%s: bad port width %d\n", __func__, cfi->cfi_portwidth);
|
||||
};
|
||||
|
||||
cfi_cmd(cfi, sa, 0x29); /* Write Buffer Program Confirm */
|
||||
cfi_cmd(cfi, sa, 0x29); /* Write Buffer Program Confirm */
|
||||
|
||||
error = cfi_0002_busy_wait(cfi, offset, cfi_0002_time_write_nbyte(cfi));
|
||||
|
||||
@ -342,12 +343,12 @@ cfi_0002_erase_all(device_t self)
|
||||
if (error != 0)
|
||||
return ETIMEDOUT;
|
||||
|
||||
cfi_cmd(cfi, 0x555, 0xaa); /* unlock 1 */
|
||||
cfi_cmd(cfi, 0x2aa, 0x55); /* unlock 2 */
|
||||
cfi_cmd(cfi, 0x555, 0x80); /* erase start */
|
||||
cfi_cmd(cfi, 0x555, 0xaa); /* unlock 1 */
|
||||
cfi_cmd(cfi, 0x2aa, 0x55); /* unlock 2 */
|
||||
cfi_cmd(cfi, 0x555, 0x10); /* erase chip */
|
||||
cfi_cmd(cfi, cfi->cfi_unlock_addr1, 0xaa);
|
||||
cfi_cmd(cfi, cfi->cfi_unlock_addr2, 0x55);
|
||||
cfi_cmd(cfi, cfi->cfi_unlock_addr1, 0x80); /* erase start */
|
||||
cfi_cmd(cfi, cfi->cfi_unlock_addr1, 0xaa);
|
||||
cfi_cmd(cfi, cfi->cfi_unlock_addr2, 0x55);
|
||||
cfi_cmd(cfi, cfi->cfi_unlock_addr1, 0x10); /* erase chip */
|
||||
|
||||
error = cfi_0002_busy_wait(cfi, 0, cfi_0002_time_erase_all(cfi));
|
||||
|
||||
@ -365,19 +366,18 @@ cfi_0002_erase_block(device_t self, flash_off_t offset)
|
||||
|
||||
CFI_0002_STATS_INC(cfi, erase_block);
|
||||
|
||||
/* scale sector addr by portwidth or chipwidth ? */
|
||||
bus_size_t sa = offset >> cfi->cfi_portwidth;
|
||||
bus_size_t sa = offset << (3 - cfi->cfi_portwidth);
|
||||
|
||||
int error = cfi_0002_busy_wait(cfi, offset, cfi_0002_time_dflt(cfi));
|
||||
if (error != 0)
|
||||
return ETIMEDOUT;
|
||||
|
||||
cfi_cmd(cfi, 0x555, 0xaa); /* unlock 1 */
|
||||
cfi_cmd(cfi, 0x2aa, 0x55); /* unlock 2 */
|
||||
cfi_cmd(cfi, 0x555, 0x80); /* erase start */
|
||||
cfi_cmd(cfi, 0x555, 0xaa); /* unlock 1 */
|
||||
cfi_cmd(cfi, 0x2aa, 0x55); /* unlock 2 */
|
||||
cfi_cmd(cfi, sa, 0x30); /* erase sector */
|
||||
cfi_cmd(cfi, cfi->cfi_unlock_addr1, 0xaa);
|
||||
cfi_cmd(cfi, cfi->cfi_unlock_addr2, 0x55);
|
||||
cfi_cmd(cfi, cfi->cfi_unlock_addr1, 0x80); /* erase start */
|
||||
cfi_cmd(cfi, cfi->cfi_unlock_addr1, 0xaa);
|
||||
cfi_cmd(cfi, cfi->cfi_unlock_addr2, 0x55);
|
||||
cfi_cmd(cfi, sa, 0x30); /* erase sector */
|
||||
|
||||
error = cfi_0002_busy_wait(cfi, offset, cfi_0002_time_erase_blk(cfi));
|
||||
|
||||
@ -553,7 +553,7 @@ cfi_0002_busy_reg(struct cfi * const cfi, flash_off_t offset)
|
||||
bus_space_handle_t bsh = cfi->cfi_bsh;
|
||||
uint32_t r;
|
||||
|
||||
cfi_cmd(cfi, 0x555, 0x70); /* Status Register Read */
|
||||
cfi_cmd(cfi, cfi->cfi_unlock_addr1, 0x70); /* Status Register Read */
|
||||
|
||||
switch(cfi->cfi_portwidth) {
|
||||
case 0:
|
||||
|
||||
Loading…
Reference in New Issue
Block a user