diff options
Diffstat (limited to 'src/soc/nvidia/tegra210/ram_code.c')
| -rw-r--r-- | src/soc/nvidia/tegra210/ram_code.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/soc/nvidia/tegra210/ram_code.c b/src/soc/nvidia/tegra210/ram_code.c new file mode 100644 index 0000000000..8715410e76 --- /dev/null +++ b/src/soc/nvidia/tegra210/ram_code.c @@ -0,0 +1,29 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2014 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <arch/io.h> +#include <soc/addressmap.h> +#include <soc/sdram.h> +#include <soc/nvidia/tegra/apbmisc.h> + +uint32_t sdram_get_ram_code(void) +{ + struct apbmisc *misc = (struct apbmisc *)TEGRA_APB_MISC_BASE; + + return (read32(&misc->pp_strapping_opt_a) & + PP_STRAPPING_OPT_A_RAM_CODE_MASK) >> + PP_STRAPPING_OPT_A_RAM_CODE_SHIFT; +} |