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authorYork Sun <york.sun@nxp.com>2017-03-06 09:02:28 -0800
committerYork Sun <york.sun@nxp.com>2017-03-14 08:44:03 -0700
commit36cc0de0b919c0e185739142742e0a76a7c5c30a (patch)
tree23c4bf83f6b7546e45df69ebfc1161549fbf3284 /board/freescale/ls1046ardb
parent426337455e06c2d05c40f48e488b95a12e4aa056 (diff)
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 <york.sun@nxp.com>
Diffstat (limited to 'board/freescale/ls1046ardb')
-rw-r--r--board/freescale/ls1046ardb/ddr.c29
1 files changed, 0 insertions, 29 deletions
diff --git a/board/freescale/ls1046ardb/ddr.c b/board/freescale/ls1046ardb/ddr.c
index dd3b5d0e6b..efe2ba6eb1 100644
--- a/board/freescale/ls1046ardb/ddr.c
+++ b/board/freescale/ls1046ardb/ddr.c
@@ -112,32 +112,3 @@ phys_size_t initdram(int board_type)
return dram_size;
}
-
-void dram_init_banksize(void)
-{
- /*
- * gd->arch.secure_ram tracks the location of secure memory.
- * It was set as if the memory starts from 0.
- * The address needs to add the offset of its bank.
- */
- gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
- if (gd->ram_size > CONFIG_SYS_DDR_BLOCK1_SIZE) {
- gd->bd->bi_dram[0].size = CONFIG_SYS_DDR_BLOCK1_SIZE;
- gd->bd->bi_dram[1].start = CONFIG_SYS_DDR_BLOCK2_BASE;
- gd->bd->bi_dram[1].size = gd->ram_size -
- CONFIG_SYS_DDR_BLOCK1_SIZE;
-#ifdef CONFIG_SYS_MEM_RESERVE_SECURE
- gd->arch.secure_ram = gd->bd->bi_dram[1].start +
- gd->arch.secure_ram -
- CONFIG_SYS_DDR_BLOCK1_SIZE;
- gd->arch.secure_ram |= MEM_RESERVE_SECURE_MAINTAINED;
-#endif
- } else {
- gd->bd->bi_dram[0].size = gd->ram_size;
-#ifdef CONFIG_SYS_MEM_RESERVE_SECURE
- gd->arch.secure_ram = gd->bd->bi_dram[0].start +
- gd->arch.secure_ram;
- gd->arch.secure_ram |= MEM_RESERVE_SECURE_MAINTAINED;
-#endif
- }
-}