diff options
| author | Bharat Kumar Reddy Gooty <bharat.gooty@broadcom.com> | 2020-07-15 22:49:05 +0530 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2020-07-29 10:37:11 -0400 |
| commit | 53a3e8d46926213fea17115dbae035901a13bc05 (patch) | |
| tree | 38051be633caa89cd0110e1dab4f2002613d6170 /board/broadcom | |
| parent | c8b98482d8b320be73f9eb8b8794f09dcb5044bd (diff) | |
| download | u-boot-53a3e8d46926213fea17115dbae035901a13bc05.zip u-boot-53a3e8d46926213fea17115dbae035901a13bc05.tar.gz u-boot-53a3e8d46926213fea17115dbae035901a13bc05.tar.bz2 | |
board: ns3: limit U-boot relocation within 16MB memory
By default relocation happens to a higher address of DDR,
i.e, DDR start + DDR size.
U-Boot shall be used to collect the ramdump.
Restrict U-Boot to use only the 16MB memory, so that this
memory can be reserved. Limit relocation to happen within
16MB memory, start 0xFF00_0000 and end 0x1_0000_0000
Signed-off-by: Bharat Kumar Reddy Gooty <bharat.gooty@broadcom.com>
Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'board/broadcom')
| -rw-r--r-- | board/broadcom/bcmns3/ns3.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/board/broadcom/bcmns3/ns3.c b/board/broadcom/bcmns3/ns3.c index dcdde40..0357cd0 100644 --- a/board/broadcom/bcmns3/ns3.c +++ b/board/broadcom/bcmns3/ns3.c @@ -144,6 +144,11 @@ static int mem_info_parse_fixup(void *fdt) int board_init(void) { + /* Setup memory using "memory" node from DTB */ + if (fdtdec_setup_mem_size_base() != 0) + return -EINVAL; + fdtdec_setup_memory_banksize(); + if (bl33_info->version != BL33_INFO_VERSION) printf("*** warning: ATF BL31 and U-Boot not in sync! ***\n"); @@ -157,19 +162,30 @@ int board_late_init(void) int dram_init(void) { - if (fdtdec_setup_mem_size_base() != 0) - return -EINVAL; + /* + * Mark ram base as the last 16MB of 2GB DDR, which is 0xFF00_0000. + * So that relocation happens with in the last 16MB memory. + */ + gd->ram_base = (phys_size_t)(BCM_NS3_MEM_END - SZ_16M); + gd->ram_size = (unsigned long)SZ_16M; return 0; } int dram_init_banksize(void) { - fdtdec_setup_memory_banksize(); + gd->bd->bi_dram[0].start = (BCM_NS3_MEM_END - SZ_16M); + gd->bd->bi_dram[0].size = SZ_16M; return 0; } +/* Limit RAM used by U-Boot to the DDR first bank End region */ +ulong board_get_usable_ram_top(ulong total_size) +{ + return BCM_NS3_MEM_END; +} + void reset_cpu(ulong level) { u32 reset_level, strap_val; |