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Yann-lmsUlf Hansson
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mmc: mmci: Add support for sdmmc variant revision v3.0
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@foss.st.com> Link: https://lore.kernel.org/r/20230619115120.64474-4-yann.gautier@foss.st.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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drivers/mmc/host/mmci.c

Lines changed: 33 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -306,6 +306,34 @@ static struct variant_data variant_stm32_sdmmcv2 = {
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.init = sdmmc_variant_init,
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};
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static struct variant_data variant_stm32_sdmmcv3 = {
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.fifosize = 256 * 4,
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.fifohalfsize = 128 * 4,
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.f_max = 267000000,
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.stm32_clkdiv = true,
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.cmdreg_cpsm_enable = MCI_CPSM_STM32_ENABLE,
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.cmdreg_lrsp_crc = MCI_CPSM_STM32_LRSP_CRC,
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.cmdreg_srsp_crc = MCI_CPSM_STM32_SRSP_CRC,
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.cmdreg_srsp = MCI_CPSM_STM32_SRSP,
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.cmdreg_stop = MCI_CPSM_STM32_CMDSTOP,
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.data_cmd_enable = MCI_CPSM_STM32_CMDTRANS,
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.irq_pio_mask = MCI_IRQ_PIO_STM32_MASK,
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.datactrl_first = true,
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.datacnt_useless = true,
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.datalength_bits = 25,
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.datactrl_blocksz = 14,
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.datactrl_any_blocksz = true,
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.datactrl_mask_sdio = MCI_DPSM_ST_SDIOEN,
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.stm32_idmabsize_mask = GENMASK(16, 6),
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.stm32_idmabsize_align = BIT(6),
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.dma_lli = true,
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.busy_timeout = true,
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.busy_detect = true,
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.busy_detect_flag = MCI_STM32_BUSYD0,
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.busy_detect_mask = MCI_STM32_BUSYD0ENDMASK,
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.init = sdmmc_variant_init,
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};
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static struct variant_data variant_qcom = {
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.fifosize = 16 * 4,
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.fifohalfsize = 8 * 4,
@@ -2509,6 +2537,11 @@ static const struct amba_id mmci_ids[] = {
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.mask = 0xf0ffffff,
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.data = &variant_stm32_sdmmcv2,
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},
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{
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.id = 0x00353180,
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.mask = 0xf0ffffff,
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.data = &variant_stm32_sdmmcv3,
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},
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/* Qualcomm variants */
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{
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.id = 0x00051180,

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