On Sun, May 17, 2020 at 12:54 PM Rayagonda Kokatanur rayagonda.kokatanur@broadcom.com wrote:
Add brcm iproc qspi support.
Signed-off-by: Rayagonda Kokatanur rayagonda.kokatanur@broadcom.com
Changes from v1: -Address review comments from Jagan Teki, Remove flash opcode from driver and use include/linux/mtd/spi-nor.h, Remove CONFIG_BCM_IPROC_USE_BSPI, handle via driver data
-Address self review comments, Remove REG_WR, REG_RD, REG_SET, REG_CLR and use writel, readl, setbits_le32 and clrbits_le32 respectively, Rename priv data struct variables mspi_hw. bspi_hw, bspi_hw_raf to mspi, bspi, baspi_raf respectively, Remove struct bcmspi_platdata.
drivers/spi/Kconfig | 6 + drivers/spi/Makefile | 1 + drivers/spi/iproc_qspi.c | 808 +++++++++++++++++++++++++++++++++++++++ drivers/spi/iproc_qspi.h | 18 + drivers/spi/iproc_spi.c | 71 ++++ 5 files changed, 904 insertions(+) create mode 100644 drivers/spi/iproc_qspi.c create mode 100644 drivers/spi/iproc_qspi.h create mode 100644 drivers/spi/iproc_spi.c
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index 4166c6104e..3b827b3346 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -148,6 +148,12 @@ config ICH_SPI access the SPI NOR flash on platforms embedding this Intel ICH IP core.
+config IPROC_QSPI
bool "QSPI driver for BCM iProc QSPI Controller"helpThis selects the BCM iProc QSPI controller.This driver support spi flash single, quad and memory reads.config MESON_SPIFC bool "Amlogic Meson SPI Flash Controller driver" depends on ARCH_MESON diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index 52462e19a3..359f6a87cb 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -32,6 +32,7 @@ obj-$(CONFIG_FSL_DSPI) += fsl_dspi.o obj-$(CONFIG_FSL_ESPI) += fsl_espi.o obj-$(CONFIG_FSL_QSPI) += fsl_qspi.o obj-$(CONFIG_ICH_SPI) += ich.o +obj-$(CONFIG_IPROC_QSPI) += iproc_qspi.o obj-$(CONFIG_KIRKWOOD_SPI) += kirkwood_spi.o obj-$(CONFIG_LPC32XX_SSP) += lpc32xx_ssp.o obj-$(CONFIG_MESON_SPIFC) += meson_spifc.o diff --git a/drivers/spi/iproc_qspi.c b/drivers/spi/iproc_qspi.c new file mode 100644 index 0000000000..037f5be315 --- /dev/null +++ b/drivers/spi/iproc_qspi.c @@ -0,0 +1,808 @@ +// SPDX-License-Identifier: GPL-2.0+ +/*
- Copyright 2020 Broadcom
- */
+#include <common.h> +#include <dm.h> +#include <errno.h> +#include <malloc.h> +#include <spi.h> +#include <asm/io.h> +#include <linux/err.h> +#include <linux/mtd/spi-nor.h>
Please note that this is SPI driver not flash specifically. We cannot use flash side attributes or logic in spi master driver. If this driver truly spi-nor flash specific driver then write it on MTD side using UCLASS_SPI_FLASH.
Jagan.