ZynqMP provides an option to overwrite bootmode setting which can change SPL behavior. For example: boot SPL via JTAG and then SPL loads images from SD.
Signed-off-by: Michal Simek michal.simek@xilinx.com ---
Is there any way how to use symbols from headers? Currently Kconfig just copies values from hardware.h and will be great to have a way to have these values just at one location.
--- arch/arm/cpu/armv8/zynqmp/Kconfig | 48 +++++++++++++++++++++++++++++ arch/arm/cpu/armv8/zynqmp/spl.c | 7 +++++ arch/arm/include/asm/arch-zynqmp/hardware.h | 2 ++ 3 files changed, 57 insertions(+)
diff --git a/arch/arm/cpu/armv8/zynqmp/Kconfig b/arch/arm/cpu/armv8/zynqmp/Kconfig index ed3305d71821..72ff856baddc 100644 --- a/arch/arm/cpu/armv8/zynqmp/Kconfig +++ b/arch/arm/cpu/armv8/zynqmp/Kconfig @@ -23,5 +23,53 @@ config ZYNQMP_USB config SYS_MALLOC_F_LEN default 0x600
+config SPL_ZYNQMP_ALT_BOOTMODE_ENABLED + bool "Overwrite SPL bootmode" + depends on SPL + help + Overwrite bootmode selected via boot mode pins to tell SPL what should + be the next boot device. + +config SPL_ZYNQMP_ALT_BOOTMODE + hex + default 0x0 if JTAG_MODE + default 0x1 if QSPI_MODE_24BIT + default 0x2 if QSPI_MODE_32BIT + default 0x3 if SD_MODE + default 0x4 if NAND_MODE + default 0x5 if SD_MODE1 + default 0x6 if EMMC_MODE + default 0x7 if USB_MODE + +choice + prompt "Boot mode" + depends on ZYNQMP_ALT_BOOTMODE_ENABLED + default JTAG + +config JTAG_MODE + bool "JTAG_MODE" + +config QSPI_MODE_24BIT + bool "QSPI_MODE_24BIT" + +config QSPI_MODE_32BIT + bool "QSPI_MODE_32BIT" + +config SD_MODE + bool "SD_MODE" + +config SD_MODE1 + bool "SD_MODE1" + +config NAND_MODE + bool "NAND_MODE" + +config EMMC_MODE + bool "EMMC_MODE" + +config USB_MODE + bool "USB" + +endchoice
endif diff --git a/arch/arm/cpu/armv8/zynqmp/spl.c b/arch/arm/cpu/armv8/zynqmp/spl.c index 867d2b25a88d..4b6fdc259341 100644 --- a/arch/arm/cpu/armv8/zynqmp/spl.c +++ b/arch/arm/cpu/armv8/zynqmp/spl.c @@ -48,6 +48,13 @@ u32 spl_boot_device(void) u32 reg = 0; u8 bootmode;
+#if defined(CONFIG_SPL_ZYNQMP_ALT_BOOTMODE_ENABLED) + /* Change default boot mode at run-time */ + writel(BOOT_MODE_USE_ALT | + CONFIG_SPL_ZYNQMP_ALT_BOOTMODE << BOOT_MODE_ALT_SHIFT, + &crlapb_base->boot_mode); +#endif + reg = readl(&crlapb_base->boot_mode); bootmode = reg & BOOT_MODES_MASK;
diff --git a/arch/arm/include/asm/arch-zynqmp/hardware.h b/arch/arm/include/asm/arch-zynqmp/hardware.h index 35964d603b38..bcb243416a2a 100644 --- a/arch/arm/include/asm/arch-zynqmp/hardware.h +++ b/arch/arm/include/asm/arch-zynqmp/hardware.h @@ -70,6 +70,8 @@ struct iou_scntr_secure { #define NAND_MODE 0x00000004 #define EMMC_MODE 0x00000006 #define JTAG_MODE 0x00000000 +#define BOOT_MODE_USE_ALT 0x100 +#define BOOT_MODE_ALT_SHIFT 12
#define ZYNQMP_IOU_SLCR_BASEADDR 0xFF180000