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-rw-r--r--hw/block/pflash_cfi01.c140
1 files changed, 73 insertions, 67 deletions
diff --git a/hw/block/pflash_cfi01.c b/hw/block/pflash_cfi01.c
index 248889c..779a62f 100644
--- a/hw/block/pflash_cfi01.c
+++ b/hw/block/pflash_cfi01.c
@@ -704,30 +704,11 @@ static const MemoryRegionOps pflash_cfi01_ops = {
.endianness = DEVICE_NATIVE_ENDIAN,
};
-static void pflash_cfi01_realize(DeviceState *dev, Error **errp)
+static void pflash_cfi01_fill_cfi_table(PFlashCFI01 *pfl)
{
- ERRP_GUARD();
- PFlashCFI01 *pfl = PFLASH_CFI01(dev);
- uint64_t total_len;
- int ret;
uint64_t blocks_per_device, sector_len_per_device, device_len;
int num_devices;
- if (pfl->sector_len == 0) {
- error_setg(errp, "attribute \"sector-length\" not specified or zero.");
- return;
- }
- if (pfl->nb_blocs == 0) {
- error_setg(errp, "attribute \"num-blocks\" not specified or zero.");
- return;
- }
- if (pfl->name == NULL) {
- error_setg(errp, "attribute \"name\" not specified.");
- return;
- }
-
- total_len = pfl->sector_len * pfl->nb_blocs;
-
/*
* These are only used to expose the parameters of each device
* in the cfi_table[].
@@ -742,53 +723,6 @@ static void pflash_cfi01_realize(DeviceState *dev, Error **errp)
}
device_len = sector_len_per_device * blocks_per_device;
- memory_region_init_rom_device(
- &pfl->mem, OBJECT(dev),
- &pflash_cfi01_ops,
- pfl,
- pfl->name, total_len, errp);
- if (*errp) {
- return;
- }
-
- pfl->storage = memory_region_get_ram_ptr(&pfl->mem);
- sysbus_init_mmio(SYS_BUS_DEVICE(dev), &pfl->mem);
-
- if (pfl->blk) {
- uint64_t perm;
- pfl->ro = !blk_supports_write_perm(pfl->blk);
- perm = BLK_PERM_CONSISTENT_READ | (pfl->ro ? 0 : BLK_PERM_WRITE);
- ret = blk_set_perm(pfl->blk, perm, BLK_PERM_ALL, errp);
- if (ret < 0) {
- return;
- }
- } else {
- pfl->ro = 0;
- }
-
- if (pfl->blk) {
- if (!blk_check_size_and_read_all(pfl->blk, pfl->storage, total_len,
- errp)) {
- vmstate_unregister_ram(&pfl->mem, DEVICE(pfl));
- return;
- }
- }
-
- /*
- * Default to devices being used at their maximum device width. This was
- * assumed before the device_width support was added.
- */
- if (!pfl->max_device_width) {
- pfl->max_device_width = pfl->device_width;
- }
-
- pfl->wcycle = 0;
- /*
- * The command 0x00 is not assigned by the CFI open standard,
- * but QEMU historically uses it for the READ_ARRAY command (0xff).
- */
- pfl->cmd = 0x00;
- pfl->status = 0x80; /* WSM ready */
/* Hardcoded CFI table */
/* Standard "QRY" string */
pfl->cfi_table[0x10] = 'Q';
@@ -876,6 +810,78 @@ static void pflash_cfi01_realize(DeviceState *dev, Error **errp)
pfl->cfi_table[0x3f] = 0x01; /* Number of protection fields */
}
+static void pflash_cfi01_realize(DeviceState *dev, Error **errp)
+{
+ ERRP_GUARD();
+ PFlashCFI01 *pfl = PFLASH_CFI01(dev);
+ uint64_t total_len;
+ int ret;
+
+ if (pfl->sector_len == 0) {
+ error_setg(errp, "attribute \"sector-length\" not specified or zero.");
+ return;
+ }
+ if (pfl->nb_blocs == 0) {
+ error_setg(errp, "attribute \"num-blocks\" not specified or zero.");
+ return;
+ }
+ if (pfl->name == NULL) {
+ error_setg(errp, "attribute \"name\" not specified.");
+ return;
+ }
+
+ total_len = pfl->sector_len * pfl->nb_blocs;
+
+ memory_region_init_rom_device(
+ &pfl->mem, OBJECT(dev),
+ &pflash_cfi01_ops,
+ pfl,
+ pfl->name, total_len, errp);
+ if (*errp) {
+ return;
+ }
+
+ pfl->storage = memory_region_get_ram_ptr(&pfl->mem);
+ sysbus_init_mmio(SYS_BUS_DEVICE(dev), &pfl->mem);
+
+ if (pfl->blk) {
+ uint64_t perm;
+ pfl->ro = !blk_supports_write_perm(pfl->blk);
+ perm = BLK_PERM_CONSISTENT_READ | (pfl->ro ? 0 : BLK_PERM_WRITE);
+ ret = blk_set_perm(pfl->blk, perm, BLK_PERM_ALL, errp);
+ if (ret < 0) {
+ return;
+ }
+ } else {
+ pfl->ro = 0;
+ }
+
+ if (pfl->blk) {
+ if (!blk_check_size_and_read_all(pfl->blk, pfl->storage, total_len,
+ errp)) {
+ vmstate_unregister_ram(&pfl->mem, DEVICE(pfl));
+ return;
+ }
+ }
+
+ /*
+ * Default to devices being used at their maximum device width. This was
+ * assumed before the device_width support was added.
+ */
+ if (!pfl->max_device_width) {
+ pfl->max_device_width = pfl->device_width;
+ }
+
+ pfl->wcycle = 0;
+ /*
+ * The command 0x00 is not assigned by the CFI open standard,
+ * but QEMU historically uses it for the READ_ARRAY command (0xff).
+ */
+ pfl->cmd = 0x00;
+ pfl->status = 0x80; /* WSM ready */
+ pflash_cfi01_fill_cfi_table(pfl);
+}
+
static void pflash_cfi01_system_reset(DeviceState *dev)
{
PFlashCFI01 *pfl = PFLASH_CFI01(dev);