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hw/block/pflash_cfi02: Document the current CFI values

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Signed-off-by: Stephen Checkoway <stephen.checkoway@oberlin.edu>
Message-Id: <20190426162624.55977-6-stephen.checkoway@oberlin.edu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
[PMD: Extracted from bigger patch]
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
This commit is contained in:
Philippe Mathieu-Daudé 2019-05-18 20:21:28 +02:00
parent 1eb27d692e
commit 9ac45b886a
1 changed files with 10 additions and 1 deletions
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11
hw/block/pflash_cfi02.c
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@ -550,6 +550,7 @@ static void pflash_cfi02_realize(DeviceState *dev, Error **errp)
pfl->wcycle = 0;
pfl->cmd = 0;
pfl->status = 0;
/* Hardcoded CFI table (mostly from SG29 Spansion flash) */
/* Standard "QRY" string */
pfl->cfi_table[0x10] = 'Q';
@ -575,7 +576,7 @@ static void pflash_cfi02_realize(DeviceState *dev, Error **errp)
pfl->cfi_table[0x1D] = 0x00;
/* Vpp max (no Vpp pin) */
pfl->cfi_table[0x1E] = 0x00;
/* Reserved */
/* Timeout per single byte/word write (128 ms) */
pfl->cfi_table[0x1F] = 0x07;
/* Timeout for min size buffer write (NA) */
pfl->cfi_table[0x20] = 0x00;
@ -614,17 +615,25 @@ static void pflash_cfi02_realize(DeviceState *dev, Error **errp)
pfl->cfi_table[0x32] = 'R';
pfl->cfi_table[0x33] = 'I';
/* Extended version 1.0 */
pfl->cfi_table[0x34] = '1';
pfl->cfi_table[0x35] = '0';
/* Address sensitive unlock required. */
pfl->cfi_table[0x36] = 0x00;
/* Erase suspend not supported. */
pfl->cfi_table[0x37] = 0x00;
/* Sector protect not supported. */
pfl->cfi_table[0x38] = 0x00;
/* Temporary sector unprotect not supported. */
pfl->cfi_table[0x39] = 0x00;
/* Sector protect/unprotect scheme. */
pfl->cfi_table[0x3a] = 0x00;
/* Simultaneous operation not supported. */
pfl->cfi_table[0x3b] = 0x00;
/* Burst mode not supported. */
pfl->cfi_table[0x3c] = 0x00;
}