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m25p80: Replace JEDEC ID masking with function.

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Instead of always reading and comparing jededc ID,
replace it by function.

Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com>
Message-id: 1466755631-25201-2-git-send-email-marcin.krzeminski@nokia.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
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 87e79af074
commit c7cd0a6c24
1 changed files with 40 additions and 9 deletions
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49
hw/block/m25p80.c
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@ -307,6 +307,14 @@ typedef enum {
STATE_READING_DATA,
} CMDState;
typedef enum {
MAN_SPANSION,
MAN_MACRONIX,
MAN_NUMONYX,
MAN_WINBOND,
MAN_GENERIC,
} Manufacturer;
typedef struct Flash {
SSISlave parent_obj;
@ -350,6 +358,22 @@ typedef struct M25P80Class {
#define M25P80_GET_CLASS(obj) \
OBJECT_GET_CLASS(M25P80Class, (obj), TYPE_M25P80)
static inline Manufacturer get_man(Flash *s)
{
switch (((s->pi->jedec >> 16) & 0xFF)) {
case 0x20:
return MAN_NUMONYX;
case 0xEF:
return MAN_WINBOND;
case 0x01:
return MAN_SPANSION;
case 0xC2:
return MAN_MACRONIX;
default:
return MAN_GENERIC;
}
}
static void blk_sync_complete(void *opaque, int ret)
{
/* do nothing. Masters do not directly interact with the backing store,
@ -562,7 +586,8 @@ static void reset_memory(Flash *s)
s->write_enable = false;
s->reset_enable = false;
if (((s->pi->jedec >> 16) & 0xFF) == JEDEC_NUMONYX) {
switch (get_man(s)) {
case MAN_NUMONYX:
s->volatile_cfg = 0;
s->volatile_cfg |= VCFG_DUMMY;
s->volatile_cfg |= VCFG_WRAP_SEQUENTIAL;
@ -594,6 +619,9 @@ static void reset_memory(Flash *s)
if (!(s->nonvolatile_cfg & NVCFG_LOWER_SEGMENT_MASK)) {
s->ear = CFG_UPPER_128MB_SEG_ENABLED;
}
break;
default:
break;
}
DB_PRINT_L(0, "Reset done.\n");
@ -634,9 +662,12 @@ static void decode_new_cmd(Flash *s, uint32_t value)
case QOR:
case QOR4:
s->needed_bytes = get_addr_length(s);
if (((s->pi->jedec >> 16) & 0xFF) == JEDEC_NUMONYX) {
/* Dummy cycles modeled with bytes writes instead of bits */
switch (get_man(s)) {
case MAN_NUMONYX:
s->needed_bytes += extract32(s->volatile_cfg, 4, 4);
break;
default:
break;
}
s->pos = 0;
s->len = 0;
@ -645,9 +676,9 @@ static void decode_new_cmd(Flash *s, uint32_t value)
case DIOR:
case DIOR4:
switch ((s->pi->jedec >> 16) & 0xFF) {
case JEDEC_WINBOND:
case JEDEC_SPANSION:
switch (get_man(s)) {
case MAN_WINBOND:
case MAN_SPANSION:
s->needed_bytes = 4;
break;
default:
@ -662,9 +693,9 @@ static void decode_new_cmd(Flash *s, uint32_t value)
case QIOR:
case QIOR4:
switch ((s->pi->jedec >> 16) & 0xFF) {
case JEDEC_WINBOND:
case JEDEC_SPANSION:
switch (get_man(s)) {
case MAN_WINBOND:
case MAN_SPANSION:
s->needed_bytes = 6;
break;
default: