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Diffstat (limited to 'arch/arm/mach-tegra/flowctrl.c')
-rw-r--r--arch/arm/mach-tegra/flowctrl.c38
1 files changed, 33 insertions, 5 deletions
diff --git a/arch/arm/mach-tegra/flowctrl.c b/arch/arm/mach-tegra/flowctrl.c
index 5393eb2cae21..b477ef310dcd 100644
--- a/arch/arm/mach-tegra/flowctrl.c
+++ b/arch/arm/mach-tegra/flowctrl.c
@@ -25,6 +25,7 @@
#include "flowctrl.h"
#include "iomap.h"
+#include "fuse.h"
static u8 flowctrl_offset_halt_cpu[] = {
FLOW_CTRL_HALT_CPU0_EVENTS,
@@ -75,11 +76,26 @@ void flowctrl_cpu_suspend_enter(unsigned int cpuid)
int i;
reg = flowctrl_read_cpu_csr(cpuid);
- reg &= ~TEGRA30_FLOW_CTRL_CSR_WFE_BITMAP; /* clear wfe bitmap */
- reg &= ~TEGRA30_FLOW_CTRL_CSR_WFI_BITMAP; /* clear wfi bitmap */
+ switch (tegra_chip_id) {
+ case TEGRA20:
+ /* clear wfe bitmap */
+ reg &= ~TEGRA20_FLOW_CTRL_CSR_WFE_BITMAP;
+ /* clear wfi bitmap */
+ reg &= ~TEGRA20_FLOW_CTRL_CSR_WFI_BITMAP;
+ /* pwr gating on wfe */
+ reg |= TEGRA20_FLOW_CTRL_CSR_WFE_CPU0 << cpuid;
+ break;
+ case TEGRA30:
+ /* clear wfe bitmap */
+ reg &= ~TEGRA30_FLOW_CTRL_CSR_WFE_BITMAP;
+ /* clear wfi bitmap */
+ reg &= ~TEGRA30_FLOW_CTRL_CSR_WFI_BITMAP;
+ /* pwr gating on wfi */
+ reg |= TEGRA30_FLOW_CTRL_CSR_WFI_CPU0 << cpuid;
+ break;
+ }
reg |= FLOW_CTRL_CSR_INTR_FLAG; /* clear intr flag */
reg |= FLOW_CTRL_CSR_EVENT_FLAG; /* clear event flag */
- reg |= TEGRA30_FLOW_CTRL_CSR_WFI_CPU0 << cpuid; /* pwr gating on wfi */
reg |= FLOW_CTRL_CSR_ENABLE; /* pwr gating */
flowctrl_write_cpu_csr(cpuid, reg);
@@ -99,8 +115,20 @@ void flowctrl_cpu_suspend_exit(unsigned int cpuid)
/* Disable powergating via flow controller for CPU0 */
reg = flowctrl_read_cpu_csr(cpuid);
- reg &= ~TEGRA30_FLOW_CTRL_CSR_WFE_BITMAP; /* clear wfe bitmap */
- reg &= ~TEGRA30_FLOW_CTRL_CSR_WFI_BITMAP; /* clear wfi bitmap */
+ switch (tegra_chip_id) {
+ case TEGRA20:
+ /* clear wfe bitmap */
+ reg &= ~TEGRA20_FLOW_CTRL_CSR_WFE_BITMAP;
+ /* clear wfi bitmap */
+ reg &= ~TEGRA20_FLOW_CTRL_CSR_WFI_BITMAP;
+ break;
+ case TEGRA30:
+ /* clear wfe bitmap */
+ reg &= ~TEGRA30_FLOW_CTRL_CSR_WFE_BITMAP;
+ /* clear wfi bitmap */
+ reg &= ~TEGRA30_FLOW_CTRL_CSR_WFI_BITMAP;
+ break;
+ }
reg &= ~FLOW_CTRL_CSR_ENABLE; /* clear enable */
reg |= FLOW_CTRL_CSR_INTR_FLAG; /* clear intr */
reg |= FLOW_CTRL_CSR_EVENT_FLAG; /* clear event */