From: Tien Fong Chee tien.fong.chee@intel.com
Function for checking boot device type, which is required for locating flash where U-boot image, FPGA design are stored.
Signed-off-by: Tien Fong Chee tien.fong.chee@intel.com --- arch/arm/mach-socfpga/include/mach/misc.h | 19 +++++++++++++++++++ arch/arm/mach-socfpga/misc_arria10.c | 22 ++++++++++++++++++++++ 2 files changed, 41 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-socfpga/include/mach/misc.h b/arch/arm/mach-socfpga/include/mach/misc.h index 0b65783..b219aac 100644 --- a/arch/arm/mach-socfpga/include/mach/misc.h +++ b/arch/arm/mach-socfpga/include/mach/misc.h @@ -14,6 +14,24 @@ struct bsel { const char *name; };
+enum { + BOOT_DEVICE_RAM, + BOOT_DEVICE_MMC1, + BOOT_DEVICE_MMC2, + BOOT_DEVICE_MMC2_2, + BOOT_DEVICE_NAND, + BOOT_DEVICE_ONENAND, + BOOT_DEVICE_NOR, + BOOT_DEVICE_UART, + BOOT_DEVICE_SPI, + BOOT_DEVICE_USB, + BOOT_DEVICE_SATA, + BOOT_DEVICE_I2C, + BOOT_DEVICE_BOARD, + BOOT_DEVICE_DFU, + BOOT_DEVICE_NONE +}; + extern struct bsel bsel_str[];
#ifdef CONFIG_FPGA @@ -26,6 +44,7 @@ static inline void socfpga_fpga_add(void) {} unsigned int dedicated_uart_com_port(const void *blob); unsigned int shared_uart_com_port(const void *blob); unsigned int uart_com_port(const void *blob); +u32 boot_device(void); #endif
#endif /* _MISC_H_ */ diff --git a/arch/arm/mach-socfpga/misc_arria10.c b/arch/arm/mach-socfpga/misc_arria10.c index 9d751f6..069a0a6 100644 --- a/arch/arm/mach-socfpga/misc_arria10.c +++ b/arch/arm/mach-socfpga/misc_arria10.c @@ -235,6 +235,28 @@ unsigned int uart_com_port(const void *blob) return shared_uart_com_port(blob); }
+u32 boot_device(void) +{ + const u32 bsel = readl(&sysmgr_regs->bootinfo); + + switch (SYSMGR_GET_BOOTINFO_BSEL(bsel)) { + case 0x1: /* FPGA (HPS2FPGA Bridge) */ + return BOOT_DEVICE_RAM; + case 0x2: /* NAND Flash (1.8V) */ + case 0x3: /* NAND Flash (3.0V) */ + return BOOT_DEVICE_NAND; + case 0x4: /* SD/MMC External Transceiver (1.8V) */ + case 0x5: /* SD/MMC Internal Transceiver (3.0V) */ + return BOOT_DEVICE_MMC1; + case 0x6: /* QSPI Flash (1.8V) */ + case 0x7: /* QSPI Flash (3.0V) */ + return BOOT_DEVICE_SPI; + default: + printf("Invalid boot device (bsel=%08x)!\n", bsel); + hang(); + } +} + /* * Print CPU information */