kernel/linux.git/include/linux/soc/qcom/geni-se.h, branch linux-7.0.y

soc: qcom: geni-se: Add support to load QUP SE Firmware via Linux subsystem

2025-09-17T18:49:58+00:00

In Qualcomm SoCs, firmware loading for Serial Engines (SE) within the QUP hardware has traditionally been managed by TrustZone (TZ). This restriction poses a significant challenge for developers, as it limits their ability to enable various protocols on any of the SEs from the Linux side, reducing flexibility. Load the firmware to QUP SE based on the 'firmware-name' property specified in devicetree at bootup time. Co-developed-by: Mukesh Kumar Savaliya Signed-off-by: Mukesh Kumar Savaliya Signed-off-by: Viken Dadhaniya Link: https://lore.kernel.org/r/20250911043256.3523057-4-viken.dadhaniya@oss.qualcomm.com Signed-off-by: Bjorn Andersson

serial: qcom-geni: fix rx cancel dma status bit

2024-10-11T06:39:23+00:00

Cancelling an rx command is signalled using bit 14 of the rx DMA status register and not bit 11. This bit is currently unused, but this error becomes apparent, for example, when tracing the status register when closing the port. Fixes: eddac5af0654 ("soc: qcom: Add GENI based QUP Wrapper driver") Reviewed-by: Douglas Anderson Signed-off-by: Johan Hovold Link: https://lore.kernel.org/r/20241009145110.16847-7-johan+linaro@kernel.org Signed-off-by: Greg Kroah-Hartman

soc: qcom: geni-se: add GP_LENGTH/IRQ_EN_SET/IRQ_EN_CLEAR registers

2024-09-11T13:44:45+00:00

For UART devices the M_GP_LENGTH is the TX word count. For other devices this is the transaction word count. For UART devices the S_GP_LENGTH is the RX word count. The IRQ_EN set/clear registers allow you to set or clear bits in the IRQ_EN register without needing a read-modify-write. Acked-by: Bjorn Andersson Signed-off-by: Douglas Anderson Link: https://lore.kernel.org/r/20240610152420.v4.1.Ife7ced506aef1be3158712aa3ff34a006b973559@changeid Tested-by: Nícolas F. R. A. Prado Signed-off-by: Johan Hovold Link: https://lore.kernel.org/r/20240906131336.23625-4-johan+linaro@kernel.org Signed-off-by: Greg Kroah-Hartman

soc: qcom: geni-se: Add M_TX_FIFO_NOT_EMPTY bit definition

2024-01-28T03:01:51+00:00

According to the docs I have, bit 21 of the status register is asserted when the FIFO is _not_ empty. Add the definition. Signed-off-by: Douglas Anderson Reviewed-by: Konrad Dybcio Link: https://lore.kernel.org/r/20240112150307.1.I7dc0993c1e758a1efedd651e7e1670deb1b430fb@changeid Signed-off-by: Greg Kroah-Hartman

soc: qcom: geni-se: Add SPI Device mode support for GENI based QuPv3

2023-07-31T14:57:03+00:00

Add device mode supported registers and masks. Signed-off-by: Praveen Talari Reviewed-by: Vijaya Krishna Nivarthi Link: https://lore.kernel.org/r/20230714042203.14251-2-quic_ptalari@quicinc.com Signed-off-by: Mark Brown

soc: qcom: geni-se: Add interfaces geni_se_tx_init_dma() and geni_se_rx_init_dma()

2023-06-06T17:38:33+00:00

The geni_se_xx_dma_prep() interfaces necessarily do DMA mapping before initiating DMA transfers. This is not suitable for spi where framework is expected to handle map/unmap. Expose new interfaces geni_se_xx_init_dma() which do only DMA transfer. Signed-off-by: Vijaya Krishna Nivarthi Reviewed-by: Douglas Anderson Reviewed-by: Konrad Dybcio Link: https://lore.kernel.org/r/1684325894-30252-2-git-send-email-quic_vnivarth@quicinc.com Signed-off-by: Mark Brown

soc: qcom: geni-se: Update Tx and Rx fifo depth based on QUP HW version

2023-03-14T00:15:12+00:00

From QUP HW Version 3.10 and above the Tx and Rx fifo depth bits are increased to 23:16 bits from 21:16 bits in SE_HW_PARAM registers accomodating 256bytes of fifo depth. Updated geni_se_get_tx_fifo_depth and geni_se_get_rx_fifo_depth to retrieve right fifo depth based on QUP HW version. Signed-off-by: Visweswara Tanuku Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/20230215050528.9507-1-quic_vtanuku@quicinc.com

soc: qcom: geni-se: Move qcom-geni-se.h to linux/soc/qcom/geni-se.h

2023-02-09T12:27:07+00:00

Move include/linux/qcom-geni-se.h to include/linux/soc/qcom/geni-se.h. This removes 1 of a few remaining Qualcomm-specific headers into a more approciate subdirectory under include/. Signed-off-by: Elliot Berman Acked-by: Bjorn Andersson Acked-by: Wolfram Sang # for I2C Reviewed-by: Guru Das Srinagesh Link: https://lore.kernel.org/r/20230203210133.3552796-1-quic_eberman@quicinc.com Signed-off-by: Greg Kroah-Hartman