[PATCH V6 15/23] mmc: mmci: add variant property to define irq pio mask
From: Ludovic Barre <hidden>
Date: 2018-10-08 12:11:21
Also in:
linux-arm-kernel, linux-mmc, lkml
Subsystem:
arm primecell mmci pl180/1 driver, multimedia card (mmc), secure digital (sd) and sdio subsystem, the rest · Maintainers:
Russell King, Ulf Hansson, Linus Torvalds
From: Ludovic Barre <redacted> This patch allows to define specific pio mask for variants. Needed to support the STM32 sdmmc variant which has some bits with different meaning (bits: 21,20,13,12,9) Signed-off-by: Ludovic Barre <redacted> --- drivers/mmc/host/mmci.c | 13 +++++++++++-- drivers/mmc/host/mmci.h | 5 ++++- 2 files changed, 15 insertions(+), 3 deletions(-)
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 0443b3a..ca442fb 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c@@ -67,6 +67,7 @@ static struct variant_data variant_arm = { .f_max = 100000000, .reversed_irq_handling = true, .mmcimask1 = true, + .irq_pio_mask = MCI_IRQ_PIO_MASK, .start_err = MCI_STARTBITERR, .opendrain = MCI_ROD, .init = mmci_variant_init,
@@ -85,6 +86,7 @@ static struct variant_data variant_arm_extended_fifo = { .pwrreg_powerup = MCI_PWR_UP, .f_max = 100000000, .mmcimask1 = true, + .irq_pio_mask = MCI_IRQ_PIO_MASK, .start_err = MCI_STARTBITERR, .opendrain = MCI_ROD, .init = mmci_variant_init,
@@ -104,6 +106,7 @@ static struct variant_data variant_arm_extended_fifo_hwfc = { .pwrreg_powerup = MCI_PWR_UP, .f_max = 100000000, .mmcimask1 = true, + .irq_pio_mask = MCI_IRQ_PIO_MASK, .start_err = MCI_STARTBITERR, .opendrain = MCI_ROD, .init = mmci_variant_init,
@@ -129,6 +132,7 @@ static struct variant_data variant_u300 = { .pwrreg_clkgate = true, .pwrreg_nopower = true, .mmcimask1 = true, + .irq_pio_mask = MCI_IRQ_PIO_MASK, .start_err = MCI_STARTBITERR, .opendrain = MCI_OD, .init = mmci_variant_init,
@@ -155,6 +159,7 @@ static struct variant_data variant_nomadik = { .pwrreg_clkgate = true, .pwrreg_nopower = true, .mmcimask1 = true, + .irq_pio_mask = MCI_IRQ_PIO_MASK, .start_err = MCI_STARTBITERR, .opendrain = MCI_OD, .init = mmci_variant_init,
@@ -187,6 +192,7 @@ static struct variant_data variant_ux500 = { .busy_detect_mask = MCI_ST_BUSYENDMASK, .pwrreg_nopower = true, .mmcimask1 = true, + .irq_pio_mask = MCI_IRQ_PIO_MASK, .start_err = MCI_STARTBITERR, .opendrain = MCI_OD, .init = mmci_variant_init,
@@ -221,6 +227,7 @@ static struct variant_data variant_ux500v2 = { .busy_detect_mask = MCI_ST_BUSYENDMASK, .pwrreg_nopower = true, .mmcimask1 = true, + .irq_pio_mask = MCI_IRQ_PIO_MASK, .start_err = MCI_STARTBITERR, .opendrain = MCI_OD, .init = mmci_variant_init,
@@ -237,6 +244,7 @@ static struct variant_data variant_stm32 = { .cmdreg_lrsp_crc = MCI_CPSM_RESPONSE | MCI_CPSM_LONGRSP, .cmdreg_srsp_crc = MCI_CPSM_RESPONSE, .cmdreg_srsp = MCI_CPSM_RESPONSE, + .irq_pio_mask = MCI_IRQ_PIO_MASK, .datalength_bits = 24, .datactrl_blocksz = 11, .datactrl_dpsm_enable = MCI_DPSM_ENABLE,
@@ -273,6 +281,7 @@ static struct variant_data variant_qcom = { .qcom_fifo = true, .qcom_dml = true, .mmcimask1 = true, + .irq_pio_mask = MCI_IRQ_PIO_MASK, .start_err = MCI_STARTBITERR, .opendrain = MCI_ROD, .init = qcom_variant_init,
@@ -556,7 +565,7 @@ static void mmci_set_mask1(struct mmci_host *host, unsigned int mask) if (host->singleirq) { unsigned int mask0 = readl(base + MMCIMASK0); - mask0 &= ~MCI_IRQ1MASK; + mask0 &= ~variant->irq_pio_mask; mask0 |= mask; writel(mask0, base + MMCIMASK0);
@@ -1458,7 +1467,7 @@ static irqreturn_t mmci_irq(int irq, void *dev_id) if (status & host->mask1_reg) mmci_pio_irq(irq, dev_id); - status &= ~MCI_IRQ1MASK; + status &= ~host->variant->irq_pio_mask; } /*
diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h
index 04d021e..783a7ad 100644
--- a/drivers/mmc/host/mmci.h
+++ b/drivers/mmc/host/mmci.h@@ -186,7 +186,7 @@ MCI_CMDRESPENDMASK | MCI_CMDSENTMASK) /* These interrupts are directed to IRQ1 when two IRQ lines are available */ -#define MCI_IRQ1MASK \ +#define MCI_IRQ_PIO_MASK \ (MCI_RXFIFOHALFFULLMASK | MCI_RXDATAAVLBLMASK | \ MCI_TXFIFOHALFEMPTYMASK)
@@ -239,6 +239,8 @@ struct mmci_host; * @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. + * @irq_pio_mask: bitmask used to manage interrupt pio transfert in mmcimask + * register * @start_err: bitmask identifying the STARTBITERR bit inside MMCISTATUS * register. * @opendrain: bitmask identifying the OPENDRAIN bit inside MMCIPOWER register
@@ -278,6 +280,7 @@ struct variant_data { u8 qcom_dml:1; u8 reversed_irq_handling:1; u8 mmcimask1:1; + unsigned int irq_pio_mask; u32 start_err; u32 opendrain; void (*init)(struct mmci_host *host);
--
2.7.4