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[ARM] tegra: suspend: Save protected aperture across LP0

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Change-Id: Iab66c566957cfbac8ddab615ec92e57c2164ab68
Signed-off-by: Colin Cross <ccross@android.com>
This commit is contained in:
Colin Cross
2010-10-19 16:08:48 -07:00
parent 0f712aa808
commit 25d5d351ec
1 changed files with 4 additions and 1 deletions
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5
arch/arm/mach-tegra/suspend.c
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@@ -461,13 +461,14 @@ static void tegra_debug_uart_resume(void)
#define MC_SECURITY_START 0x6c
#define MC_SECURITY_SIZE 0x70
#define MC_SECURITY_CFG2 0x7c
static int tegra_suspend_enter(suspend_state_t state)
{
struct irq_desc *desc;
void __iomem *mc = IO_ADDRESS(TEGRA_MC_BASE);
unsigned long flags;
u32 mc_data[2];
u32 mc_data[3] = {0, 0, 0};
int irq;
bool do_lp0 = (current_suspend_mode == TEGRA_SUSPEND_LP0);
bool do_lp2 = (current_suspend_mode == TEGRA_SUSPEND_LP2);
@@ -494,6 +495,7 @@ static int tegra_suspend_enter(suspend_state_t state)
mc_data[0] = readl(mc + MC_SECURITY_START);
mc_data[1] = readl(mc + MC_SECURITY_SIZE);
mc_data[2] = readl(mc + MC_SECURITY_CFG2);
}
for_each_irq_desc(irq, desc) {
@@ -521,6 +523,7 @@ static int tegra_suspend_enter(suspend_state_t state)
if (do_lp0) {
writel(mc_data[0], mc + MC_SECURITY_START);
writel(mc_data[1], mc + MC_SECURITY_SIZE);
writel(mc_data[2], mc + MC_SECURITY_CFG2);
tegra_clk_resume();
tegra_gpio_resume();