diff options
| -rw-r--r-- | arch/arm/mach-imx/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/mach-imx/xload-qspi.c | 57 | ||||
| -rw-r--r-- | include/mach/imx/xload.h | 3 |
3 files changed, 61 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile index 5d70e79b57..f49bbea2b4 100644 --- a/arch/arm/mach-imx/Makefile +++ b/arch/arm/mach-imx/Makefile @@ -31,3 +31,4 @@ obj-$(CONFIG_BAREBOX_UPDATE_IMX_EXTERNAL_NAND) += imx-bbu-external-nand.o obj-$(CONFIG_RESET_IMX_SRC) += src.o lwl-y += cpu_init.o pbl-y += xload-spi.o xload-common.o xload-imx-nand.o xload-gpmi-nand.o +pbl-y += xload-qspi.o diff --git a/arch/arm/mach-imx/xload-qspi.c b/arch/arm/mach-imx/xload-qspi.c new file mode 100644 index 0000000000..6bf5bba5e6 --- /dev/null +++ b/arch/arm/mach-imx/xload-qspi.c @@ -0,0 +1,57 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include <common.h> +#include <linux/sizes.h> +#include <mach/imx/atf.h> +#include <mach/imx/imx8m-regs.h> +#include <mach/imx/xload.h> + +#define IMX8M_QSPI_MMAP 0x8000000 + +/* Make use of AHB reads */ +static +int imx8m_qspi_read(void *dest, size_t len, void *priv) +{ + void __iomem *qspi_ahb = priv; + + memcpy(dest, qspi_ahb, len); + + return 0; +} + +/** + * imx8mm_qspi_start_image - Load and optionally start an image from the + * FlexSPI controller. + * @instance: The FlexSPI controller instance + * @start: Whether to directly start the loaded image + * + * This uses imx8m_qspi_load_image() to load an image from QSPI. It is assumed + * that the image is the currently running barebox image (This information + * is used to calculate the length of the image). + * The image is started afterwards. + * + * Return: If successful, this function does not return (if directly started) + * or 0. A negative error code is returned when this function fails. + */ +static +int imx8m_qspi_load_image(int instance, bool start, off_t offset, off_t ivt_offset) +{ + void __iomem *qspi_ahb = IOMEM(IMX8M_QSPI_MMAP); + + return imx_load_image(MX8M_DDR_CSD1_BASE_ADDR, MX8M_ATF_BL33_BASE_ADDR, + offset, ivt_offset, start, 0, + imx8m_qspi_read, qspi_ahb); +} + +int imx8mm_qspi_load_image(int instance, bool start) +{ + return imx8m_qspi_load_image(instance, start, 0, SZ_4K); +} + +int imx8mn_qspi_load_image(int instance, bool start) +{ + return imx8m_qspi_load_image(instance, start, SZ_4K, 0); +} + +int imx8mp_qspi_load_image(int instance, bool start) + __alias(imx8mn_qspi_load_image); diff --git a/include/mach/imx/xload.h b/include/mach/imx/xload.h index baed09476c..a52b1e8ea1 100644 --- a/include/mach/imx/xload.h +++ b/include/mach/imx/xload.h @@ -17,6 +17,9 @@ int imx7_nand_start_image(void); int imx8m_esdhc_load_image(int instance, bool start); int imx8mn_esdhc_load_image(int instance, bool start); int imx8mp_esdhc_load_image(int instance, bool start); +int imx8mm_qspi_load_image(int instance, bool start); +int imx8mn_qspi_load_image(int instance, bool start); +int imx8mp_qspi_load_image(int instance, bool start); void imx8mm_load_bl33(void *bl33); void imx8mn_load_bl33(void *bl33); |