diff options
Diffstat (limited to 'arch/arm/boards/rockchip-rk3568-bpi-r2pro/lowlevel.c')
-rw-r--r-- | arch/arm/boards/rockchip-rk3568-bpi-r2pro/lowlevel.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/arm/boards/rockchip-rk3568-bpi-r2pro/lowlevel.c b/arch/arm/boards/rockchip-rk3568-bpi-r2pro/lowlevel.c new file mode 100644 index 0000000000..9f039c6048 --- /dev/null +++ b/arch/arm/boards/rockchip-rk3568-bpi-r2pro/lowlevel.c @@ -0,0 +1,49 @@ +// SPDX-License-Identifier: GPL-2.0-only + +#include <common.h> +#include <linux/sizes.h> +#include <asm/barebox-arm-head.h> +#include <asm/barebox-arm.h> +#include <mach/hardware.h> +#include <mach/atf.h> +#include <debug_ll.h> +#include <mach/rockchip.h> + +extern char __dtb_rk3568_bpi_r2_pro_start[]; + +static noinline void rk3568_start(void) +{ + void *fdt; + + /* + * Enable vccio4 1.8V and vccio6 1.8V + * Needed for GMAC to work. + */ + writel(RK_SETBITS(0x50), 0xfdc20140); + + fdt = __dtb_rk3568_bpi_r2_pro_start; + + if (current_el() == 3) { + rk3568_lowlevel_init(); + rk3568_atf_load_bl31(fdt); + /* not reached */ + } + + barebox_arm_entry(RK3568_DRAM_BOTTOM, 0x80000000 - RK3568_DRAM_BOTTOM, fdt); +} + +ENTRY_FUNCTION(start_rk3568_bpi_r2pro, r0, r1, r2) +{ + /* + * Image execution starts at 0x0, but this is used for ATF and + * OP-TEE later, so move away from here. + */ + if (current_el() == 3) + relocate_to_adr_full(RK3568_BAREBOX_LOAD_ADDRESS); + else + relocate_to_current_adr(); + + setup_c(); + + rk3568_start(); +} |