xref: /aosp_15_r20/external/coreboot/src/soc/nvidia/tegra210/ram_code.c (revision b9411a12aaaa7e1e6a6fb7c5e057f44ee179a49c) 
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 
3 #include <device/mmio.h>
4 #include <soc/addressmap.h>
5 #include <soc/sdram.h>
6 #include <soc/nvidia/tegra/apbmisc.h>
7 
sdram_get_ram_code(void)8 uint32_t sdram_get_ram_code(void)
9 {
10 	struct apbmisc *misc = (struct apbmisc *)TEGRA_APB_MISC_BASE;
11 
12 	return (read32(&misc->pp_strapping_opt_a) &
13 		PP_STRAPPING_OPT_A_RAM_CODE_MASK) >>
14 		PP_STRAPPING_OPT_A_RAM_CODE_SHIFT;
15 }
16