diff options
| author | Marek Vasut <marex@denx.de> | 2015-07-21 16:11:16 +0200 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2015-08-08 14:14:08 +0200 |
| commit | 066ad14a22b10b444ed9e89401f6d905164774b0 (patch) | |
| tree | d159ab2189f235367e97137ca52130ffb1036df7 /arch | |
| parent | 346d6f5667d3ab6e0a7b550d9789d3365a12478a (diff) | |
| download | talos-obmc-uboot-066ad14a22b10b444ed9e89401f6d905164774b0.tar.gz talos-obmc-uboot-066ad14a22b10b444ed9e89401f6d905164774b0.zip | |
arm: socfpga: spl: Add support for selecting boot device from BSEL
Rework spl_boot_device() such that it reads the BSEL settings from
system manager and decides from where to load U-Boot based on this
information.
Signed-off-by: Marek Vasut <marex@denx.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-socfpga/spl.c | 35 |
1 files changed, 23 insertions, 12 deletions
diff --git a/arch/arm/mach-socfpga/spl.c b/arch/arm/mach-socfpga/spl.c index 7f0ebeb9fd..82570f8617 100644 --- a/arch/arm/mach-socfpga/spl.c +++ b/arch/arm/mach-socfpga/spl.c @@ -28,19 +28,32 @@ static struct scu_registers *scu_regs = (struct scu_registers *)SOCFPGA_MPUSCU_ADDRESS; static struct nic301_registers *nic301_regs = (struct nic301_registers *)SOCFPGA_L3REGS_ADDRESS; +static struct socfpga_system_manager *sysmgr_regs = + (struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS; u32 spl_boot_device(void) { -#ifdef CONFIG_SPL_SPI_SUPPORT - socfpga_per_reset(SOCFPGA_RESET(QSPI), 0); - return BOOT_DEVICE_SPI; -#elif CONFIG_SPL_MMC_SUPPORT - socfpga_per_reset(SOCFPGA_RESET(SDMMC), 0); - socfpga_per_reset(SOCFPGA_RESET(DMA), 0); - return BOOT_DEVICE_MMC1; -#else - return BOOT_DEVICE_RAM; -#endif + const u32 bsel = readl(&sysmgr_regs->bootinfo); + + switch (bsel & 0x7) { + 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) */ + socfpga_per_reset(SOCFPGA_RESET(SDMMC), 0); + socfpga_per_reset(SOCFPGA_RESET(DMA), 0); + return BOOT_DEVICE_MMC1; + case 0x6: /* QSPI Flash (1.8V) */ + case 0x7: /* QSPI Flash (3.0V) */ + socfpga_per_reset(SOCFPGA_RESET(QSPI), 0); + return BOOT_DEVICE_SPI; + default: + printf("Invalid boot device (bsel=%08x)!\n", bsel); + hang(); + } } #ifdef CONFIG_SPL_MMC_SUPPORT @@ -69,8 +82,6 @@ void board_init_f(ulong dummy) #ifndef CONFIG_SOCFPGA_VIRTUAL_TARGET const struct cm_config *cm_default_cfg = cm_get_default_config(); #endif - struct socfpga_system_manager *sysmgr_regs = - (struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS; unsigned long sdram_size; unsigned long reg; |
