[PATCH v2 3/6] mmc: mmci: Add support for sdmmc variant revision v3.0

From: Yann Gautier
Date: Mon Jun 19 2023 - 07:52:55 EST


This is an update of the SDMMC revision v2.2, with just an increased
FIFO size, from 64B to 1kB.

Signed-off-by: Yann Gautier <yann.gautier@xxxxxxxxxxx>
---
drivers/mmc/host/mmci.c | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)

diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index eae3d1c8934cb..3c54ab2c59176 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -306,6 +306,34 @@ static struct variant_data variant_stm32_sdmmcv2 = {
.init = sdmmc_variant_init,
};

+static struct variant_data variant_stm32_sdmmcv3 = {
+ .fifosize = 256 * 4,
+ .fifohalfsize = 128 * 4,
+ .f_max = 267000000,
+ .stm32_clkdiv = true,
+ .cmdreg_cpsm_enable = MCI_CPSM_STM32_ENABLE,
+ .cmdreg_lrsp_crc = MCI_CPSM_STM32_LRSP_CRC,
+ .cmdreg_srsp_crc = MCI_CPSM_STM32_SRSP_CRC,
+ .cmdreg_srsp = MCI_CPSM_STM32_SRSP,
+ .cmdreg_stop = MCI_CPSM_STM32_CMDSTOP,
+ .data_cmd_enable = MCI_CPSM_STM32_CMDTRANS,
+ .irq_pio_mask = MCI_IRQ_PIO_STM32_MASK,
+ .datactrl_first = true,
+ .datacnt_useless = true,
+ .datalength_bits = 25,
+ .datactrl_blocksz = 14,
+ .datactrl_any_blocksz = true,
+ .datactrl_mask_sdio = MCI_DPSM_ST_SDIOEN,
+ .stm32_idmabsize_mask = GENMASK(16, 6),
+ .stm32_idmabsize_align = BIT(6),
+ .dma_lli = true,
+ .busy_timeout = true,
+ .busy_detect = true,
+ .busy_detect_flag = MCI_STM32_BUSYD0,
+ .busy_detect_mask = MCI_STM32_BUSYD0ENDMASK,
+ .init = sdmmc_variant_init,
+};
+
static struct variant_data variant_qcom = {
.fifosize = 16 * 4,
.fifohalfsize = 8 * 4,
@@ -2500,6 +2528,11 @@ static const struct amba_id mmci_ids[] = {
.mask = 0xf0ffffff,
.data = &variant_stm32_sdmmcv2,
},
+ {
+ .id = 0x00353180,
+ .mask = 0xf0ffffff,
+ .data = &variant_stm32_sdmmcv3,
+ },
/* Qualcomm variants */
{
.id = 0x00051180,
--
2.25.1