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Subject[PATCH V4 5/5] mmc: mmci: replace blksz_datactrlXX by get_datactrl_cfg callback
Date
From: Ludovic Barre <ludovic.barre@st.com>

This patch allows to get datactrl configuration specific
at variant. This introduce more flexibility on datactlr
value.

Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
---
drivers/mmc/host/mmci.c | 26 ++------------------------
drivers/mmc/host/mmci.h | 7 -------
2 files changed, 2 insertions(+), 31 deletions(-)

diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index a818511..5b2cf77 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -60,7 +60,6 @@ static struct variant_data variant_arm = {
.cmdreg_srsp = MCI_CPSM_RESPONSE,
.datalength_bits = 16,
.datactrl_blocksz = 11,
- .datactrl_dpsm_enable = MCI_DPSM_ENABLE,
.pwrreg_powerup = MCI_PWR_UP,
.f_max = 100000000,
.reversed_irq_handling = true,
@@ -80,7 +79,6 @@ static struct variant_data variant_arm_extended_fifo = {
.cmdreg_srsp = MCI_CPSM_RESPONSE,
.datalength_bits = 16,
.datactrl_blocksz = 11,
- .datactrl_dpsm_enable = MCI_DPSM_ENABLE,
.pwrreg_powerup = MCI_PWR_UP,
.f_max = 100000000,
.mmcimask1 = true,
@@ -100,7 +98,6 @@ static struct variant_data variant_arm_extended_fifo_hwfc = {
.cmdreg_srsp = MCI_CPSM_RESPONSE,
.datalength_bits = 16,
.datactrl_blocksz = 11,
- .datactrl_dpsm_enable = MCI_DPSM_ENABLE,
.pwrreg_powerup = MCI_PWR_UP,
.f_max = 100000000,
.mmcimask1 = true,
@@ -121,7 +118,6 @@ static struct variant_data variant_u300 = {
.cmdreg_srsp = MCI_CPSM_RESPONSE,
.datalength_bits = 16,
.datactrl_blocksz = 11,
- .datactrl_dpsm_enable = MCI_DPSM_ENABLE,
.datactrl_mask_sdio = MCI_DPSM_ST_SDIOEN,
.st_sdio = true,
.pwrreg_powerup = MCI_PWR_ON,
@@ -147,7 +143,6 @@ static struct variant_data variant_nomadik = {
.cmdreg_srsp = MCI_CPSM_RESPONSE,
.datalength_bits = 24,
.datactrl_blocksz = 11,
- .datactrl_dpsm_enable = MCI_DPSM_ENABLE,
.datactrl_mask_sdio = MCI_DPSM_ST_SDIOEN,
.st_sdio = true,
.st_clkdiv = true,
@@ -176,7 +171,6 @@ static struct variant_data variant_ux500 = {
.cmdreg_srsp = MCI_CPSM_RESPONSE,
.datalength_bits = 24,
.datactrl_blocksz = 11,
- .datactrl_dpsm_enable = MCI_DPSM_ENABLE,
.datactrl_mask_sdio = MCI_DPSM_ST_SDIOEN,
.st_sdio = true,
.st_clkdiv = true,
@@ -210,11 +204,9 @@ static struct variant_data variant_ux500v2 = {
.datactrl_mask_ddrmode = MCI_DPSM_ST_DDRMODE,
.datalength_bits = 24,
.datactrl_blocksz = 11,
- .datactrl_dpsm_enable = MCI_DPSM_ENABLE,
.datactrl_mask_sdio = MCI_DPSM_ST_SDIOEN,
.st_sdio = true,
.st_clkdiv = true,
- .blksz_datactrl16 = true,
.pwrreg_powerup = MCI_PWR_ON,
.f_max = 100000000,
.signal_direction = true,
@@ -245,7 +237,6 @@ static struct variant_data variant_stm32 = {
.irq_pio_mask = MCI_IRQ_PIO_MASK,
.datalength_bits = 24,
.datactrl_blocksz = 11,
- .datactrl_dpsm_enable = MCI_DPSM_ENABLE,
.datactrl_mask_sdio = MCI_DPSM_ST_SDIOEN,
.st_sdio = true,
.st_clkdiv = true,
@@ -289,10 +280,8 @@ static struct variant_data variant_qcom = {
.cmdreg_srsp_crc = MCI_CPSM_RESPONSE,
.cmdreg_srsp = MCI_CPSM_RESPONSE,
.data_cmd_enable = MCI_CPSM_QCOM_DATCMD,
- .blksz_datactrl4 = true,
.datalength_bits = 24,
.datactrl_blocksz = 11,
- .datactrl_dpsm_enable = MCI_DPSM_ENABLE,
.pwrreg_powerup = MCI_PWR_UP,
.f_max = 208000000,
.explicit_mclk_control = true,
@@ -1007,7 +996,6 @@ static void mmci_start_data(struct mmci_host *host, struct mmc_data *data)
unsigned int datactrl, timeout, irqmask;
unsigned long long clks;
void __iomem *base;
- int blksz_bits;

dev_dbg(mmc_dev(host->mmc), "blksz %04x blks %04x flags %08x\n",
data->blksz, data->blocks, data->flags);
@@ -1025,18 +1013,8 @@ static void mmci_start_data(struct mmci_host *host, struct mmc_data *data)
writel(timeout, base + MMCIDATATIMER);
writel(host->size, base + MMCIDATALENGTH);

- blksz_bits = ffs(data->blksz) - 1;
- BUG_ON(1 << blksz_bits != data->blksz);
-
- if (variant->blksz_datactrl16)
- datactrl = variant->datactrl_dpsm_enable | (data->blksz << 16);
- else if (variant->blksz_datactrl4)
- datactrl = variant->datactrl_dpsm_enable | (data->blksz << 4);
- else
- datactrl = variant->datactrl_dpsm_enable | blksz_bits << 4;
-
- if (data->flags & MMC_DATA_READ)
- datactrl |= MCI_DPSM_DIRECTION;
+ datactrl = host->ops->get_datactrl_cfg(host);
+ datactrl |= host->data->flags & MMC_DATA_READ ? MCI_DPSM_DIRECTION : 0;

if (host->mmc->card && mmc_card_sdio(host->mmc->card)) {
u32 clk;
diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h
index 82e9f94..4f071bd 100644
--- a/drivers/mmc/host/mmci.h
+++ b/drivers/mmc/host/mmci.h
@@ -280,12 +280,8 @@ struct mmci_host;
* @st_clkdiv: true if using a ST-specific clock divider algorithm
* @stm32_clkdiv: true if using a STM32-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
* @datactrl_blksz: block size in power of two
- * @datactrl_dpsm_enable: enable value for DPSM
* @datactrl_first: true if data must be setup before send command
* @datacnt_useless: true if you could not use datacnt register to read
* remaining data
@@ -330,14 +326,11 @@ struct variant_data {
unsigned int datactrl_mask_ddrmode;
unsigned int datactrl_mask_sdio;
unsigned int datactrl_blocksz;
- unsigned int datactrl_dpsm_enable;
u8 datactrl_first:1;
u8 datacnt_useless:1;
u8 st_sdio:1;
u8 st_clkdiv:1;
u8 stm32_clkdiv:1;
- u8 blksz_datactrl16:1;
- u8 blksz_datactrl4:1;
u32 pwrreg_powerup;
u32 f_max;
u8 signal_direction:1;
--
2.7.4
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