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m25p80: Make a table for JEDEC ID.

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Since it is now longer than 4. This work based on Pawel Lenkow
changes and the kernel SPI framework.

Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-id: 1466755631-25201-3-git-send-email-marcin.krzeminski@nokia.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Marcin Krzeminski 2016-06-27 15:37:33 +01:00 committed by Peter Maydell
parent c7cd0a6c24
commit e3ba6cd67f
1 changed files with 41 additions and 18 deletions
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59
hw/block/m25p80.c
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@ -53,12 +53,17 @@
/* 16 MiB max in 3 byte address mode */
#define MAX_3BYTES_SIZE 0x1000000
#define SPI_NOR_MAX_ID_LEN 6
typedef struct FlashPartInfo {
const char *part_name;
/* jedec code. (jedec >> 16) & 0xff is the 1st byte, >> 8 the 2nd etc */
uint32_t jedec;
/* extended jedec code */
uint16_t ext_jedec;
/*
* This array stores the ID bytes.
* The first three bytes are the JEDIC ID.
* JEDEC ID zero means "no ID" (mostly older chips).
*/
uint8_t id[SPI_NOR_MAX_ID_LEN];
uint8_t id_len;
/* there is confusion between manufacturers as to what a sector is. In this
* device model, a "sector" is the size that is erased by the ERASE_SECTOR
* command (opcode 0xd8).
@ -70,11 +75,33 @@ typedef struct FlashPartInfo {
} FlashPartInfo;
/* adapted from linux */
/* Used when the "_ext_id" is two bytes at most */
#define INFO(_part_name, _jedec_id, _ext_id, _sector_size, _n_sectors, _flags)\
.part_name = _part_name,\
.id = {\
((_jedec_id) >> 16) & 0xff,\
((_jedec_id) >> 8) & 0xff,\
(_jedec_id) & 0xff,\
((_ext_id) >> 8) & 0xff,\
(_ext_id) & 0xff,\
},\
.id_len = (!(_jedec_id) ? 0 : (3 + ((_ext_id) ? 2 : 0))),\
.sector_size = (_sector_size),\
.n_sectors = (_n_sectors),\
.page_size = 256,\
.flags = (_flags),
#define INFO(_part_name, _jedec, _ext_jedec, _sector_size, _n_sectors, _flags)\
.part_name = (_part_name),\
.jedec = (_jedec),\
.ext_jedec = (_ext_jedec),\
#define INFO6(_part_name, _jedec_id, _ext_id, _sector_size, _n_sectors, _flags)\
.part_name = _part_name,\
.id = {\
((_jedec_id) >> 16) & 0xff,\
((_jedec_id) >> 8) & 0xff,\
(_jedec_id) & 0xff,\
((_ext_id) >> 16) & 0xff,\
((_ext_id) >> 8) & 0xff,\
(_ext_id) & 0xff,\
},\
.id_len = 6,\
.sector_size = (_sector_size),\
.n_sectors = (_n_sectors),\
.page_size = 256,\
@ -360,7 +387,7 @@ typedef struct M25P80Class {
static inline Manufacturer get_man(Flash *s)
{
switch (((s->pi->jedec >> 16) & 0xFF)) {
switch (s->pi->id[0]) {
case 0x20:
return MAN_NUMONYX;
case 0xEF:
@ -630,6 +657,7 @@ static void reset_memory(Flash *s)
static void decode_new_cmd(Flash *s, uint32_t value)
{
s->cmd_in_progress = value;
int i;
DB_PRINT_L(0, "decoded new command:%x\n", value);
if (value != RESET_MEMORY) {
@ -743,16 +771,11 @@ static void decode_new_cmd(Flash *s, uint32_t value)
case JEDEC_READ:
DB_PRINT_L(0, "populated jedec code\n");
s->data[0] = (s->pi->jedec >> 16) & 0xff;
s->data[1] = (s->pi->jedec >> 8) & 0xff;
s->data[2] = s->pi->jedec & 0xff;
if (s->pi->ext_jedec) {
s->data[3] = (s->pi->ext_jedec >> 8) & 0xff;
s->data[4] = s->pi->ext_jedec & 0xff;
s->len = 5;
} else {
s->len = 3;
for (i = 0; i < s->pi->id_len; i++) {
s->data[i] = s->pi->id[i];
}
s->len = s->pi->id_len;
s->pos = 0;
s->state = STATE_READING_DATA;
break;