mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

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: Ludovic Barre <ludovic.barre@st.com>
Link: https://lore.kernel.org/r/20200128090636.13689-10-ludovic.barre@st.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Ludovic Barre 2020-01-28 10:06:36 +01:00 committed by Ulf Hansson
parent 94b94a93e3
commit 7a2a98be67
1 changed files with 31 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
drivers/mmc/host/mmci.c
View File

@ -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,