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 | 37 |
1 files changed, 37 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..12c2445287 --- /dev/null +++ b/arch/arm/boards/rockchip-rk3568-bpi-r2pro/lowlevel.c @@ -0,0 +1,37 @@ +// SPDX-License-Identifier: GPL-2.0-only + +#include <common.h> +#include <asm/barebox-arm.h> +#include <mach/rockchip/hardware.h> +#include <mach/rockchip/atf.h> +#include <debug_ll.h> +#include <mach/rockchip/rockchip.h> + +extern char __dtb_rk3568_bpi_r2_pro_start[]; + +ENTRY_FUNCTION(start_rk3568_bpi_r2pro, r0, r1, r2) +{ + putc_ll('>'); + + /* + * set iodomain vccio6 to 1.8V needed for GMAC1 to work. + * vccio4 (gmac0/switch) needs to stay at 3v3 (default) + * FIXME: This is done by the io-domain driver as well, but there + * currently is no mechanism to make sure the driver gets probed + * before its consumers. Remove this setup once this issue is + * resolved. + */ + //set bit 6 in PMU_GRF_IO_VSEL0 for vccio6 1v8 + writel(RK_SETBITS(BIT(6)), PMU_GRF_IO_VSEL0); + //clear bit 6 for 3v3 as it was set to 1v8 + writel(RK_CLRBITS(BIT(6)), PMU_GRF_IO_VSEL1); + + if (current_el() == 3) + relocate_to_adr_full(RK3568_BAREBOX_LOAD_ADDRESS); + else + relocate_to_current_adr(); + + setup_c(); + + rk3568_barebox_entry(__dtb_rk3568_bpi_r2_pro_start); +} |