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| author | Tom Rini <trini@konsulko.com> | 2016-09-21 14:50:18 -0400 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2016-09-21 14:50:18 -0400 |
| commit | 423620b9d47a704124f9fd624b4de4ed56c600d6 (patch) | |
| tree | 78fbffeb39460482565bd75fd32ad4ae1a9cd135 /board/imgtec/boston/ddr.c | |
| parent | f85fad024f208ceedb3ce0bb1819936e62a0983e (diff) | |
| parent | 31d36f748c52b22833aa946f6c406cc8fb2f1908 (diff) | |
| download | u-boot-imx-423620b9d47a704124f9fd624b4de4ed56c600d6.zip u-boot-imx-423620b9d47a704124f9fd624b4de4ed56c600d6.tar.gz u-boot-imx-423620b9d47a704124f9fd624b4de4ed56c600d6.tar.bz2 | |
Merge branch 'master' of git://git.denx.de/u-boot-mips
Diffstat (limited to 'board/imgtec/boston/ddr.c')
| -rw-r--r-- | board/imgtec/boston/ddr.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/board/imgtec/boston/ddr.c b/board/imgtec/boston/ddr.c new file mode 100644 index 0000000..ceffef6 --- /dev/null +++ b/board/imgtec/boston/ddr.c @@ -0,0 +1,30 @@ +/* + * Copyright (C) 2016 Imagination Technologies + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include <common.h> + +#include <asm/io.h> + +#include "boston-regs.h" + +phys_size_t initdram(int board_type) +{ + u32 ddrconf0 = __raw_readl((uint32_t *)BOSTON_PLAT_DDRCONF0); + + return (phys_size_t)(ddrconf0 & BOSTON_PLAT_DDRCONF0_SIZE) << 30; +} + +ulong board_get_usable_ram_top(ulong total_size) +{ + DECLARE_GLOBAL_DATA_PTR; + + if (gd->ram_top < CONFIG_SYS_SDRAM_BASE) { + /* 2GB wrapped around to 0 */ + return CKSEG0ADDR(256 << 20); + } + + return min_t(unsigned long, gd->ram_top, CKSEG0ADDR(256 << 20)); +} |