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>
diff --git a/drivers/net/fsl-mc/mc.c b/drivers/net/fsl-mc/mc.c
index 079082a..231a6d5 100644
--- a/drivers/net/fsl-mc/mc.c
+++ b/drivers/net/fsl-mc/mc.c
@@ -714,21 +714,7 @@
*/
u64 mc_get_dram_addr(void)
{
- u64 mc_ram_addr;
-
- /*
- * The MC private DRAM block was already carved at the end of DRAM
- * by board_init_f() using CONFIG_SYS_MEM_TOP_HIDE:
- */
- if (gd->bd->bi_dram[1].start) {
- mc_ram_addr =
- gd->bd->bi_dram[1].start + gd->bd->bi_dram[1].size;
- } else {
- mc_ram_addr =
- gd->bd->bi_dram[0].start + gd->bd->bi_dram[0].size;
- }
-
- return mc_ram_addr;
+ return gd->arch.resv_ram;
}
/**