From 36cc0de0b919c0e185739142742e0a76a7c5c30a Mon Sep 17 00:00:00 2001 From: York Sun Date: Mon, 6 Mar 2017 09:02:28 -0800 Subject: armv8: layerscape: Rewrite memory reservation For ARMv8 Layerscape SoCs, secure memory and MC memorey are reserved at the end of DDR. DDR is spit into two or three banks. This patch reverts commit aabd7ddb and simplifies the calculation of reserved memory, and moves the code into common SoC file. Secure memory is carved out first. DDR bank size is reduced. Reserved memory is then allocated on the top of available memory. U-Boot still has access to reserved memory as data transferring is needed. Device tree is fixed with reduced memory size to hide the reserved memory from OS. The same region is reserved for efi_loader. Signed-off-by: York Sun --- board/freescale/ls2080ardb/ls2080ardb.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) (limited to 'board/freescale/ls2080ardb/ls2080ardb.c') diff --git a/board/freescale/ls2080ardb/ls2080ardb.c b/board/freescale/ls2080ardb/ls2080ardb.c index 02954ef6d7..7a4c6a3a5c 100644 --- a/board/freescale/ls2080ardb/ls2080ardb.c +++ b/board/freescale/ls2080ardb/ls2080ardb.c @@ -202,14 +202,6 @@ int misc_init_r(void) if (adjust_vdd(0)) printf("Warning: Adjusting core voltage failed.\n"); -#if defined(CONFIG_EFI_LOADER) && !defined(CONFIG_SPL_BUILD) - if (soc_has_dp_ddr() && gd->bd->bi_dram[2].size) { - efi_add_memory_map(gd->bd->bi_dram[2].start, - gd->bd->bi_dram[2].size >> EFI_PAGE_SHIFT, - EFI_RESERVED_MEMORY_TYPE, false); - } -#endif - return 0; } @@ -286,6 +278,16 @@ int ft_board_setup(void *blob, bd_t *bd) base[1] = gd->bd->bi_dram[1].start; size[1] = gd->bd->bi_dram[1].size; +#ifdef CONFIG_RESV_RAM + /* reduce size if reserved memory is within this bank */ + if (gd->arch.resv_ram >= base[0] && + gd->arch.resv_ram < base[0] + size[0]) + size[0] = gd->arch.resv_ram - base[0]; + else if (gd->arch.resv_ram >= base[1] && + gd->arch.resv_ram < base[1] + size[1]) + size[1] = gd->arch.resv_ram - base[1]; +#endif + fdt_fixup_memory_banks(blob, base, size, 2); fsl_fdt_fixup_dr_usb(blob, bd); -- cgit v1.2.3