diff options
| author | Varun Wadekar <vwadekar@nvidia.com> | 2012-01-23 12:38:31 +0530 |
|---|---|---|
| committer | Gerrit <chrome-bot@google.com> | 2012-02-08 22:08:37 -0800 |
| commit | e7efcd3803a1359c9955a57f4f831c346b052c01 (patch) | |
| tree | 4d79a3acf0b2a0266ff50dfc038752742d7201d9 /arch/arm/cpu/armv7/tegra-common | |
| parent | 929e867d143b66d96e6c4a8e1f69d3e8c6ca14fd (diff) | |
arm: tegra2: add .lds to calculate warm boot code size
move away from the current method, where we add wb_end() immediately
after wb_start() and then use the function addresses to calculate the
WB code size. Add a .lds script to expose __wb_end after wb_start() in
the .text section and then reference this variable in the WB size
calculation code.
BUG=chromium-os:23496
TEST=build on Seaboard. Verified that uboot.map has the correct address
assigned to __wb_end and that LP0 works reliably.
Change-Id: I170277f00b450d38063018453faf44d5a38abaaa
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Reviewed-on: https://gerrit.chromium.org/gerrit/14682
Diffstat (limited to 'arch/arm/cpu/armv7/tegra-common')
| -rw-r--r-- | arch/arm/cpu/armv7/tegra-common/warmboot.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/arm/cpu/armv7/tegra-common/warmboot.c b/arch/arm/cpu/armv7/tegra-common/warmboot.c index beb7a146ed..27a61d894a 100644 --- a/arch/arm/cpu/armv7/tegra-common/warmboot.c +++ b/arch/arm/cpu/armv7/tegra-common/warmboot.c @@ -32,6 +32,8 @@ #include <asm/arch/gp_padctrl.h> +extern u32 __wb_end; /* End of WB assembly code */ + /* * NOTE: If more than one of the following is enabled, only one of them will * actually be used. RANDOM takes precedence over PATTERN and ZERO, and @@ -166,7 +168,7 @@ int warmboot_prepare_code(u32 seg_address, u32 seg_length) determine_crypto_options(&is_encrypted, &is_signed, &use_zero_key); /* Get the actual code limits. */ - length = roundup(((u32)wb_end - (u32)wb_start), 16); + length = roundup(((u32)&__wb_end - (u32)wb_start), 16); /* * The region specified by seg_address must not be in IRAM and must be |