From 24452743472a2480b88465de22db8adc7a9b544c Mon Sep 17 00:00:00 2001 From: David Hendricks Date: Wed, 2 Jul 2014 13:50:57 -0700 Subject: [PATCH] storm: Reserve memory from 0x4000_0000-0x414f_ffff This marks the bottom chunk of memory, which is used by various IP blocks, as reserved so that Depthcharge does not attempt to wipe it. BUG=chrome-os-partner:30067 BRANCH=storm TEST=Built and booted for storm, depthcharge shows: Wipe memory regions: [0x00000041500000, 0x00000051000000) [0x000000510006a0, 0x00000053000000) [0x00000054141260, 0x0000007fffd000) Original-Signed-off-by: David Hendricks Original-Change-Id: I8f782f16d13620b705e1b3fbeca21dc8705b7e77 Original-Reviewed-on: https://chromium-review.googlesource.com/206516 Original-Reviewed-by: Stefan Reinauer (cherry picked from commit f66f553f1594c481a74b7f40b4b1088600b1a70a) Signed-off-by: Marc Jones Change-Id: I82d118abc86052f5e32f6195a4efd04fe315be5a Reviewed-on: http://review.coreboot.org/8149 Reviewed-by: Stefan Reinauer Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel --- src/soc/qualcomm/ipq806x/soc.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/src/soc/qualcomm/ipq806x/soc.c b/src/soc/qualcomm/ipq806x/soc.c index 53f5716c07..6421ccdadd 100644 --- a/src/soc/qualcomm/ipq806x/soc.c +++ b/src/soc/qualcomm/ipq806x/soc.c @@ -22,10 +22,16 @@ #include #include + +#define RESERVED_SIZE_KB (0x01500000 / KiB) + static void soc_read_resources(device_t dev) { - ram_resource(dev, 0, CONFIG_SYS_SDRAM_BASE/KiB, - CONFIG_DRAM_SIZE_MB * (1 << 10)); + /* Reserve bottom 0x150_0000 bytes for NSS, SMEM, etc. */ + reserved_ram_resource(dev, 0, + CONFIG_SYS_SDRAM_BASE/KiB, RESERVED_SIZE_KB); + ram_resource(dev, 0, CONFIG_SYS_SDRAM_BASE/KiB + RESERVED_SIZE_KB, + (CONFIG_DRAM_SIZE_MB * KiB) - RESERVED_SIZE_KB); } static void soc_init(device_t dev)