diff options
| -rw-r--r-- | hw/block/m25p80.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c index 28725db..bbb5999 100644 --- a/hw/block/m25p80.c +++ b/hw/block/m25p80.c @@ -134,6 +134,14 @@ typedef struct FlashPartInfo { #define FSR_4BYTE_ADDR_MODE_ENABLED 0x1 #define FSR_FLASH_READY (1 << 7) +/* Spansion configuration registers macros. */ +#define SPANSION_QUAD_CFG_POS 0 +#define SPANSION_QUAD_CFG_LEN 1 +#define SPANSION_DUMMY_CLK_POS 0 +#define SPANSION_DUMMY_CLK_LEN 4 +#define SPANSION_ADDR_LEN_POS 7 +#define SPANSION_ADDR_LEN_LEN 1 + static const FlashPartInfo known_devices[] = { /* Atmel -- some are (confusingly) marketed as "DataFlash" */ { INFO("at25fs010", 0x1f6601, 0, 32 << 10, 4, ER_4K) }, @@ -369,8 +377,18 @@ typedef struct Flash { uint8_t cmd_in_progress; uint64_t cur_addr; uint32_t nonvolatile_cfg; + /* Configuration register for Macronix */ uint32_t volatile_cfg; uint32_t enh_volatile_cfg; + /* Spansion cfg registers. */ + uint8_t spansion_cr1nv; + uint8_t spansion_cr2nv; + uint8_t spansion_cr3nv; + uint8_t spansion_cr4nv; + uint8_t spansion_cr1v; + uint8_t spansion_cr2v; + uint8_t spansion_cr3v; + uint8_t spansion_cr4v; bool write_enable; bool four_bytes_address_mode; bool reset_enable; @@ -601,6 +619,9 @@ static void complete_collecting_data(Flash *s) break; case MAN_MACRONIX: s->quad_enable = extract32(s->data[0], 6, 1); + if (s->len > 1) { + s->four_bytes_address_mode = extract32(s->data[1], 5, 1); + } break; default: break; @@ -674,6 +695,23 @@ static void reset_memory(Flash *s) s->ear = s->size / MAX_3BYTES_SIZE - 1; } break; + case MAN_MACRONIX: + s->volatile_cfg = 0x7; + break; + case MAN_SPANSION: + s->spansion_cr1v = s->spansion_cr1nv; + s->spansion_cr2v = s->spansion_cr2nv; + s->spansion_cr3v = s->spansion_cr3nv; + s->spansion_cr4v = s->spansion_cr4nv; + s->quad_enable = extract32(s->spansion_cr1v, + SPANSION_QUAD_CFG_POS, + SPANSION_QUAD_CFG_LEN + ); + s->four_bytes_address_mode = extract32(s->spansion_cr2v, + SPANSION_ADDR_LEN_POS, + SPANSION_ADDR_LEN_LEN + ); + break; default: break; } @@ -1052,7 +1090,12 @@ static void m25p80_pre_save(void *opaque) } static Property m25p80_properties[] = { + /* This is default value for Micron flash */ DEFINE_PROP_UINT32("nonvolatile-cfg", Flash, nonvolatile_cfg, 0x8FFF), + DEFINE_PROP_UINT8("spansion-cr1nv", Flash, spansion_cr1nv, 0x0), + DEFINE_PROP_UINT8("spansion-cr2nv", Flash, spansion_cr2nv, 0x8), + DEFINE_PROP_UINT8("spansion-cr3nv", Flash, spansion_cr3nv, 0x2), + DEFINE_PROP_UINT8("spansion-cr4nv", Flash, spansion_cr4nv, 0x10), DEFINE_PROP_END_OF_LIST(), }; @@ -1077,6 +1120,10 @@ static const VMStateDescription vmstate_m25p80 = { VMSTATE_UINT32_V(volatile_cfg, Flash, 2), VMSTATE_UINT32_V(enh_volatile_cfg, Flash, 2), VMSTATE_BOOL_V(quad_enable, Flash, 3), + VMSTATE_UINT8_V(spansion_cr1nv, Flash, 3), + VMSTATE_UINT8_V(spansion_cr2nv, Flash, 3), + VMSTATE_UINT8_V(spansion_cr3nv, Flash, 3), + VMSTATE_UINT8_V(spansion_cr4nv, Flash, 3), VMSTATE_END_OF_LIST() } }; |