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| author | Michael Riesch <michael.riesch@wolfvision.net> | 2022-05-31 18:26:24 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2022-06-08 15:50:15 +0200 |
| commit | 439d2028a0e3f095e85d779892876efff5c7c9f1 (patch) | |
| tree | 741b4b0510c8f85077cdc57f8a79e8a98633cdf9 /arch/arm/boards/radxa-rock3/lowlevel.c | |
| parent | e54923b76e345080b73f3ae7f508657e5c63a9eb (diff) | |
| download | barebox-439d2028a0e3f095e85d779892876efff5c7c9f1.tar.gz barebox-439d2028a0e3f095e85d779892876efff5c7c9f1.tar.xz | |
arm: rockchip: add support for the radxa rock3 board
Add basic support for the Radxa ROCK3 Model A board (featuring
the Rockchip RK3568 SoC).
Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
Link: https://lore.barebox.org/20220531162624.245664-4-michael.riesch@wolfvision.net
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/boards/radxa-rock3/lowlevel.c')
| -rw-r--r-- | arch/arm/boards/radxa-rock3/lowlevel.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/arm/boards/radxa-rock3/lowlevel.c b/arch/arm/boards/radxa-rock3/lowlevel.c new file mode 100644 index 0000000000..00a68889cd --- /dev/null +++ b/arch/arm/boards/radxa-rock3/lowlevel.c @@ -0,0 +1,44 @@ +// 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_rock_3a_start[]; + +static noinline void rk3568_start(void *fdt) +{ + /* + * 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(); + + /* + * Enable vccio4 1.8V and vccio6 1.8V + * Needed for GMAC to work. + */ + writel(RK_SETBITS(0x50), 0xfdc20140); + + 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_rock3a, r0, r1, r2) +{ + rk3568_start(__dtb_rk3568_rock_3a_start); +} |