Commit 7a2a98be authored by Ludovic Barre's avatar Ludovic Barre Committed by Ulf Hansson
Browse files

mmc: mmci: Add support for sdmmc variant revision 2.0 



This patch adds a sdmmc variant revision 2.0. This revision is backward
compatible with 1.1, but adds DMA linked list support.

Signed-off-by: default avatarLudovic Barre <ludovic.barre@st.com>
Link: https://lore.kernel.org/r/20200128090636.13689-10-ludovic.barre@st.com


Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 94b94a93

drivers/mmc/host/mmci.c

+31 −0
Original line number Diff line number Diff line
@@ -275,6 +275,32 @@ static struct variant_data variant_stm32_sdmmc = { 
	.init			= sdmmc_variant_init,

};



static struct variant_data variant_stm32_sdmmcv2 = {

	.fifosize		= 16 * 4,

	.fifohalfsize		= 8 * 4,

	.f_max			= 208000000,

	.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,

	.stm32_idmabsize_mask	= GENMASK(16, 5),

	.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,
@@ -2343,6 +2369,11 @@ static const struct amba_id mmci_ids[] = { 
		.mask	= 0xf0ffffff,

		.data	= &variant_stm32_sdmmc,

	},

	{

		.id     = 0x00253180,

		.mask	= 0xf0ffffff,

		.data	= &variant_stm32_sdmmcv2,

	},

	/* Qualcomm variants */

	{

		.id     = 0x00051180,