haraldwolff/qemu-patch-raspberry4
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Fix last sector write on sd card

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When writing the last sector of an SD card using WRITE_MULTIPLE_BLOCK
QEmu throws an error saying that we've run off the end, and leaves
itself in the wrong state.

    Tested on ARM Vexpress model.

Signed-off-by: Dr. David Alan Gilbert <david.gilbert@linaro.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Dr. David Alan Gilbert 2011-07-25 13:21:30 +01:00 committed by Anthony Liguori
parent cbbab9226d
commit 33fa8234c3
1 changed files with 11 additions and 8 deletions
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19
hw/sd.c
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@ -1450,14 +1450,8 @@ void sd_write_data(SDState *sd, uint8_t value)
break;
case 25: /* CMD25: WRITE_MULTIPLE_BLOCK */
sd->data[sd->data_offset ++] = value;
if (sd->data_offset >= sd->blk_len) {
/* TODO: Check CRC before committing */
sd->state = sd_programming_state;
BLK_WRITE_BLOCK(sd->data_start, sd->data_offset);
sd->blk_written ++;
sd->data_start += sd->blk_len;
sd->data_offset = 0;
if (sd->data_offset == 0) {
/* Start of the block - lets check the address is valid */
if (sd->data_start + sd->blk_len > sd->size) {
sd->card_status |= ADDRESS_ERROR;
break;
@ -1466,6 +1460,15 @@ void sd_write_data(SDState *sd, uint8_t value)
sd->card_status |= WP_VIOLATION;
break;
}
}
sd->data[sd->data_offset++] = value;
if (sd->data_offset >= sd->blk_len) {
/* TODO: Check CRC before committing */
sd->state = sd_programming_state;
BLK_WRITE_BLOCK(sd->data_start, sd->data_offset);
sd->blk_written++;
sd->data_start += sd->blk_len;
sd->data_offset = 0;
sd->csd[14] |= 0x40;
/* Bzzzzzzztt .... Operation complete. */