diff options
Diffstat (limited to 'drivers/mmc/host/mmci.c')
| -rw-r--r-- | drivers/mmc/host/mmci.c | 82 |
1 files changed, 6 insertions, 76 deletions
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index f1849775e47e..1841d250e9e2 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -48,78 +48,6 @@ static unsigned int fmax = 515633; -/** - * struct variant_data - MMCI variant-specific quirks - * @clkreg: default value for MCICLOCK register - * @clkreg_enable: enable value for MMCICLOCK register - * @clkreg_8bit_bus_enable: enable value for 8 bit bus - * @clkreg_neg_edge_enable: enable value for inverted data/cmd output - * @datalength_bits: number of bits in the MMCIDATALENGTH register - * @fifosize: number of bytes that can be written when MMCI_TXFIFOEMPTY - * is asserted (likewise for RX) - * @fifohalfsize: number of bytes that can be written when MCI_TXFIFOHALFEMPTY - * is asserted (likewise for RX) - * @data_cmd_enable: enable value for data commands. - * @st_sdio: enable ST specific SDIO logic - * @st_clkdiv: true if using a ST-specific clock divider algorithm - * @datactrl_mask_ddrmode: ddr mode mask in datactrl register. - * @blksz_datactrl16: true if Block size is at b16..b30 position in datactrl register - * @blksz_datactrl4: true if Block size is at b4..b16 position in datactrl - * register - * @datactrl_mask_sdio: SDIO enable mask in datactrl register - * @pwrreg_powerup: power up value for MMCIPOWER register - * @f_max: maximum clk frequency supported by the controller. - * @signal_direction: input/out direction of bus signals can be indicated - * @pwrreg_clkgate: MMCIPOWER register must be used to gate the clock - * @busy_detect: true if the variant supports busy detection on DAT0. - * @busy_dpsm_flag: bitmask enabling busy detection in the DPSM - * @busy_detect_flag: bitmask identifying the bit in the MMCISTATUS register - * indicating that the card is busy - * @busy_detect_mask: bitmask identifying the bit in the MMCIMASK0 to mask for - * getting busy end detection interrupts - * @pwrreg_nopower: bits in MMCIPOWER don't controls ext. power supply - * @explicit_mclk_control: enable explicit mclk control in driver. - * @qcom_fifo: enables qcom specific fifo pio read logic. - * @qcom_dml: enables qcom specific dma glue for dma transfers. - * @reversed_irq_handling: handle data irq before cmd irq. - * @mmcimask1: true if variant have a MMCIMASK1 register. - * @start_err: bitmask identifying the STARTBITERR bit inside MMCISTATUS - * register. - * @opendrain: bitmask identifying the OPENDRAIN bit inside MMCIPOWER register - */ -struct variant_data { - unsigned int clkreg; - unsigned int clkreg_enable; - unsigned int clkreg_8bit_bus_enable; - unsigned int clkreg_neg_edge_enable; - unsigned int datalength_bits; - unsigned int fifosize; - unsigned int fifohalfsize; - unsigned int data_cmd_enable; - unsigned int datactrl_mask_ddrmode; - unsigned int datactrl_mask_sdio; - bool st_sdio; - bool st_clkdiv; - bool blksz_datactrl16; - bool blksz_datactrl4; - u32 pwrreg_powerup; - u32 f_max; - bool signal_direction; - bool pwrreg_clkgate; - bool busy_detect; - u32 busy_dpsm_flag; - u32 busy_detect_flag; - u32 busy_detect_mask; - bool pwrreg_nopower; - bool explicit_mclk_control; - bool qcom_fifo; - bool qcom_dml; - bool reversed_irq_handling; - bool mmcimask1; - u32 start_err; - u32 opendrain; -}; - static struct variant_data variant_arm = { .fifosize = 16 * 4, .fifohalfsize = 8 * 4, @@ -280,6 +208,7 @@ static struct variant_data variant_qcom = { .mmcimask1 = true, .start_err = MCI_STARTBITERR, .opendrain = MCI_ROD, + .init = qcom_variant_init, }; /* Busy detection for the ST Micro variant */ @@ -489,7 +418,6 @@ static void mmci_init_sg(struct mmci_host *host, struct mmc_data *data) static void mmci_dma_setup(struct mmci_host *host) { const char *rxname, *txname; - struct variant_data *variant = host->variant; host->dma_rx_channel = dma_request_slave_channel(mmc_dev(host->mmc), "rx"); host->dma_tx_channel = dma_request_slave_channel(mmc_dev(host->mmc), "tx"); @@ -537,9 +465,8 @@ static void mmci_dma_setup(struct mmci_host *host) host->mmc->max_seg_size = max_seg_size; } - if (variant->qcom_dml && host->dma_rx_channel && host->dma_tx_channel) - if (dml_hw_init(host, host->mmc->parent->of_node)) - variant->qcom_dml = false; + if (host->ops && host->ops->dma_setup) + host->ops->dma_setup(host); } /* @@ -1706,6 +1633,9 @@ static int mmci_probe(struct amba_device *dev, goto clk_disable; } + if (variant->init) + variant->init(host); + /* * The ARM and ST versions of the block have slightly different * clock divider equations which means that the minimum divider |