From 36417aa7422941f10d6f74b4711b02adcdba088b Mon Sep 17 00:00:00 2001 From: Deepa Dinamani Date: Mon, 27 Oct 2014 15:40:05 -0700 Subject: ipq806x: modify imem layout With introduction of uber-sbl SRAM usage pattern is changing, this introduces the new memory layout. This patch overlays DDR initialization code with uber-sbl, as uber-sbl goes out of scope as soon as bootblock starts. A 4K block at offset 0x3f000 added in the comments, this is a shared structure used by different QCA modules. This suggested layout is not final, but will allow to move closer to the production image. BRANCH=storm BUG=chrome-os-partner:34161 TEST=with other patches applied Storm boots all the way to rombase and initializes DRAM. Change-Id: I46af81b39b09935aa7fffdabda223e7e64c7a446 Signed-off-by: Patrick Georgi Original-Commit-Id: a20c0570361038c0ae406dcb1f4bc657eea120f6 Original-Change-Id: I927f6ffc524fc8f0effd7b91d3f5d1e8d6be1530 Original-Signed-off-by: Deepa Dinamani Original-Signed-off-by: Vadim Bendebury Original-Reviewed-on: https://chromium-review.googlesource.com/229023 Reviewed-on: http://review.coreboot.org/9683 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- src/soc/qualcomm/ipq806x/include/soc/memlayout.ld | 29 +++++++++++++++-------- 1 file changed, 19 insertions(+), 10 deletions(-) (limited to 'src/soc/qualcomm/ipq806x') diff --git a/src/soc/qualcomm/ipq806x/include/soc/memlayout.ld b/src/soc/qualcomm/ipq806x/include/soc/memlayout.ld index de1b12935c..7020f929c4 100644 --- a/src/soc/qualcomm/ipq806x/include/soc/memlayout.ld +++ b/src/soc/qualcomm/ipq806x/include/soc/memlayout.ld @@ -18,23 +18,32 @@ */ #include +#include #include -/* TODO: This should be revised by someone who understands the SoC better. */ - SECTIONS { - /* TODO: add SRAM_START(), SRAM_END() and REGION(reserved_sbl) */ - TTB(0x2A05C000, 48K) + SRAM_START(0x2A000000) + /* This includes bootblock image, can be reused after bootblock starts */ +/* UBER_SBL(0x2A000000, 48K) */ +/* DDR(0x2A000000, 48K) */ + BOOTBLOCK(0x2A00C000, 24K) + OVERLAP_VERSTAGE_ROMSTAGE(0x2A012000, 64K) + VBOOT2_WORK(0x2A022000, 16K) + PRERAM_CBMEM_CONSOLE(0x2A026000, 32K) +/* 0x2e000..0x3F000 68 KB free */ + +/* Keep the below area reserved at all times, it is used by various QCA + components as shared data + QCA_SHARED_RAM(2A03F000, 4K) +*/ + STACK(0x2A040000, 16K) + CBFS_CACHE(0x2A044000, 96K) + TTB(0x2A05C000, 16K) + SRAM_END(0x2A060000) DRAM_START(0x40000000) - CBFS_CACHE(0x405C0000, 240K) - STACK(0x405FC000, 16K) - /* TODO: "256K bytes left for TZBSP"... what does that mean? */ - BOOTBLOCK(0x40600000, 32K) - PRERAM_CBMEM_CONSOLE(0x40618000, 8K) - ROMSTAGE(0x40620000, 128K) RAMSTAGE(0x40640000, 128K) DMA_COHERENT(0x5A000000, 2M) } -- cgit v1.2.3