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| author | Lu Gao <lu.gao@verisilicon.com> | 2022-03-21 13:56:18 +0800 |
|---|---|---|
| committer | Philippe Mathieu-Daudé <philmd@linaro.org> | 2023-10-20 14:46:06 +0200 |
| commit | ae5f70baf549925080fcdbc6c1939c98a4a39246 (patch) | |
| tree | c7e06c392ef4b0c27e7488f80c3768d1e91fe1f9 | |
| parent | 1ff5f4d29456387eca09b171e3a46ffefa015733 (diff) | |
| download | qemu-ae5f70baf549925080fcdbc6c1939c98a4a39246.zip qemu-ae5f70baf549925080fcdbc6c1939c98a4a39246.tar.gz qemu-ae5f70baf549925080fcdbc6c1939c98a4a39246.tar.bz2 | |
hw/sd/sdhci: Block Size Register bits [14:12] is lost
Block Size Register bits [14:12] is SDMA Buffer Boundary, it is missed
in register write, but it is needed in SDMA transfer. e.g. it will be
used in sdhci_sdma_transfer_multi_blocks to calculate boundary_ variables.
Missing this field will cause wrong operation for different SDMA Buffer
Boundary settings.
Fixes: d7dfca0807 ("hw/sdhci: introduce standard SD host controller")
Fixes: dfba99f17f ("hw/sdhci: Fix DMA Transfer Block Size field")
Signed-off-by: Lu Gao <lu.gao@verisilicon.com>
Signed-off-by: Jianxian Wen <jianxian.wen@verisilicon.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-ID: <20220321055618.4026-1-lu.gao@verisilicon.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
| -rw-r--r-- | hw/sd/sdhci.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/hw/sd/sdhci.c b/hw/sd/sdhci.c index 5564765..40473b0 100644 --- a/hw/sd/sdhci.c +++ b/hw/sd/sdhci.c @@ -321,6 +321,8 @@ static void sdhci_poweron_reset(DeviceState *dev) static void sdhci_data_transfer(void *opaque); +#define BLOCK_SIZE_MASK (4 * KiB - 1) + static void sdhci_send_command(SDHCIState *s) { SDRequest request; @@ -371,7 +373,8 @@ static void sdhci_send_command(SDHCIState *s) sdhci_update_irq(s); - if (!timeout && s->blksize && (s->cmdreg & SDHC_CMD_DATA_PRESENT)) { + if (!timeout && (s->blksize & BLOCK_SIZE_MASK) && + (s->cmdreg & SDHC_CMD_DATA_PRESENT)) { s->data_count = 0; sdhci_data_transfer(s); } @@ -406,7 +409,6 @@ static void sdhci_end_transfer(SDHCIState *s) /* * Programmed i/o data transfer */ -#define BLOCK_SIZE_MASK (4 * KiB - 1) /* Fill host controller's read buffer with BLKSIZE bytes of data from card */ static void sdhci_read_block_from_card(SDHCIState *s) @@ -1154,7 +1156,8 @@ sdhci_write(void *opaque, hwaddr offset, uint64_t val, unsigned size) s->sdmasysad = (s->sdmasysad & mask) | value; MASKED_WRITE(s->sdmasysad, mask, value); /* Writing to last byte of sdmasysad might trigger transfer */ - if (!(mask & 0xFF000000) && s->blkcnt && s->blksize && + if (!(mask & 0xFF000000) && s->blkcnt && + (s->blksize & BLOCK_SIZE_MASK) && SDHC_DMA_TYPE(s->hostctl1) == SDHC_CTRL_SDMA) { if (s->trnmod & SDHC_TRNS_MULTI) { sdhci_sdma_transfer_multi_blocks(s); @@ -1168,7 +1171,11 @@ sdhci_write(void *opaque, hwaddr offset, uint64_t val, unsigned size) if (!TRANSFERRING_DATA(s->prnsts)) { uint16_t blksize = s->blksize; - MASKED_WRITE(s->blksize, mask, extract32(value, 0, 12)); + /* + * [14:12] SDMA Buffer Boundary + * [11:00] Transfer Block Size + */ + MASKED_WRITE(s->blksize, mask, extract32(value, 0, 15)); MASKED_WRITE(s->blkcnt, mask >> 16, value >> 16); /* Limit block size to the maximum buffer size */ |