Currently the SPI flash to load from is defined through the compile time config CONFIG_SF_DEFAULT_BUS and CONFIG_SF_DEFAULT_CS, this prevents the loading of binaries from different SPI flash using the same build.E.g. supporting QSPI flash boot and OSPI flash boot on J721E platform is not possible due to this limitation.

This commit adds lookup functions spl_spi_boot_bus() and spl_spi_boot_cs for identifying the flash device based on the selected boot device, when not overridden the lookup functions are weakly defined in common/spl/spl_spi.c.

Signed-off-by: Vaishnav Achath vaishnav.a@ti.com --- common/spl/spl_spi.c | 16 +++++++++++++--- include/spl.h | 16 ++++++++++++++++ 2 files changed, 29 insertions(+), 3 deletions(-)

diff --git a/common/spl/spl_spi.c b/common/spl/spl_spi.c index cf3f7ef4c0..3eef2f8d68 100644 --- a/common/spl/spl_spi.c +++ b/common/spl/spl_spi.c @@ -71,6 +71,16 @@ unsigned int __weak spl_spi_get_uboot_offs(struct spi_flash *flash) return CONFIG_SYS_SPI_U_BOOT_OFFS; }

+u32 __weak spl_spi_boot_bus(void) +{ + return CONFIG_SF_DEFAULT_BUS; +} + +u32 __weak spl_spi_boot_cs(void) +{ + return CONFIG_SF_DEFAULT_CS; +} + /* * The main entry for SPI booting. It's necessary that SDRAM is already * configured and available since this code loads the main U-Boot image @@ -83,15 +93,15 @@ static int spl_spi_load_image(struct spl_image_info *spl_image, unsigned int payload_offs; struct spi_flash *flash; struct image_header *header; + unsigned int sf_bus = spl_spi_boot_bus(); + unsigned int sf_cs = spl_spi_boot_cs();

/* * Load U-Boot image from SPI flash into RAM * In DM mode: defaults speed and mode will be * taken from DT when available */ - - flash = spi_flash_probe(CONFIG_SF_DEFAULT_BUS, - CONFIG_SF_DEFAULT_CS, + flash = spi_flash_probe(sf_bus, sf_cs, CONFIG_SF_DEFAULT_SPEED, CONFIG_SF_DEFAULT_MODE); if (!flash) { diff --git a/include/spl.h b/include/spl.h index 6134aba857..438f2fdf7c 100644 --- a/include/spl.h +++ b/include/spl.h @@ -361,6 +361,22 @@ int spl_load_imx_container(struct spl_image_info *spl_image, void preloader_console_init(void); u32 spl_boot_device(void);

+/** + * spl_spi_boot_bus() - Lookup function for the SPI boot bus source. + * + * This function returns the SF bus to load from. + * If not overridden, it is weakly defined in common/spl/spl_spi.c. + */ +u32 spl_spi_boot_bus(void); + +/** + * spl_spi_boot_cs() - Lookup function for the SPI boot CS source. + * + * This function returns the SF CS to load from. + * If not overridden, it is weakly defined in common/spl/spl_spi.c. + */ +u32 spl_spi_boot_cs(void); + /** * spl_mmc_boot_mode() - Lookup function for the mode of an MMC boot source. * @boot_device: ID of the device which the MMC driver wants to read

implement overrides for spl_spi_boot_bus() and spl_spi_boot_cs() lookup functions according to bootmode selection, so as to support both QSPI and OSPI boot using the same build.

Signed-off-by: Vaishnav Achath vaishnav.a@ti.com --- arch/arm/mach-k3/j721e_init.c | 17 +++++++++++++++++ arch/arm/mach-k3/sysfw-loader.c | 4 ++-- 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-k3/j721e_init.c b/arch/arm/mach-k3/j721e_init.c index f503f15f19..82391b5cf8 100644 --- a/arch/arm/mach-k3/j721e_init.c +++ b/arch/arm/mach-k3/j721e_init.c @@ -355,6 +355,23 @@ static u32 __get_primary_bootmedia(u32 main_devstat, u32 wkup_devstat) return bootmode; }

+u32 spl_spi_boot_bus(void) +{ + u32 wkup_devstat = readl(CTRLMMR_WKUP_DEVSTAT); + u32 main_devstat = readl(CTRLMMR_MAIN_DEVSTAT); + u32 bootmode = ((wkup_devstat & WKUP_DEVSTAT_PRIMARY_BOOTMODE_MASK) >> + WKUP_DEVSTAT_PRIMARY_BOOTMODE_SHIFT) | + ((main_devstat & MAIN_DEVSTAT_BOOT_MODE_B_MASK) << BOOT_MODE_B_SHIFT); + + return (bootmode == BOOT_DEVICE_QSPI) ? 1 : 0; +} + +/* both OSPI and QSPI flash are in CS0 */ +u32 spl_spi_boot_cs(void) +{ + return 0; +} + u32 spl_boot_device(void) { u32 wkup_devstat = readl(CTRLMMR_WKUP_DEVSTAT); diff --git a/arch/arm/mach-k3/sysfw-loader.c b/arch/arm/mach-k3/sysfw-loader.c index 5e48c36ccd..8ff36759c1 100644 --- a/arch/arm/mach-k3/sysfw-loader.c +++ b/arch/arm/mach-k3/sysfw-loader.c @@ -324,9 +324,9 @@ static void *k3_sysfw_get_spi_addr(void) struct udevice *dev; fdt_addr_t addr; int ret; + unsigned int sf_bus = spl_spi_boot_bus();

- ret = uclass_find_device_by_seq(UCLASS_SPI, CONFIG_SF_DEFAULT_BUS, - &dev); + ret = uclass_find_device_by_seq(UCLASS_SPI, sf_bus, &dev); if (ret) return NULL;