summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--arch/arm/include/asm/arch-tegra124/flow.h12
-rw-r--r--arch/arm/mach-tegra/powergate.c20
2 files changed, 31 insertions, 1 deletions
diff --git a/arch/arm/include/asm/arch-tegra124/flow.h b/arch/arm/include/asm/arch-tegra124/flow.h
index d6f515f..7818b1b 100644
--- a/arch/arm/include/asm/arch-tegra124/flow.h
+++ b/arch/arm/include/asm/arch-tegra124/flow.h
@@ -26,6 +26,12 @@ struct flow_ctlr {
u32 cpu_pwr_csr; /* offset 0x38 */
u32 mpid; /* offset 0x3c */
u32 ram_repair; /* offset 0x40 */
+ u32 flow_dbg_sel; /* offset 0x44 */
+ u32 flow_dbg_cnt0; /* offset 0x48 */
+ u32 flow_dbg_cnt1; /* offset 0x4c */
+ u32 flow_dbg_qual; /* offset 0x50 */
+ u32 flow_ctlr_spare; /* offset 0x54 */
+ u32 ram_repair_cluster1;/* offset 0x58 */
};
/* HALT_COP_EVENTS_0, 0x04 */
@@ -43,4 +49,10 @@ struct flow_ctlr {
#define CSR_WAIT_WFI_SHIFT 8
#define CSR_PWR_OFF_STS (1 << 16)
+/* RAM_REPAIR, 0x40, 0x58 */
+enum {
+ RAM_REPAIR_REQ = 0x1 << 0,
+ RAM_REPAIR_STS = 0x1 << 1,
+};
+
#endif /* _TEGRA124_FLOW_H_ */
diff --git a/arch/arm/mach-tegra/powergate.c b/arch/arm/mach-tegra/powergate.c
index 6331cd4..30ae036 100644
--- a/arch/arm/mach-tegra/powergate.c
+++ b/arch/arm/mach-tegra/powergate.c
@@ -9,7 +9,7 @@
#include <asm/io.h>
#include <asm/types.h>
-
+#include <asm/arch/flow.h>
#include <asm/arch/powergate.h>
#include <asm/arch/tegra.h>
@@ -75,11 +75,29 @@ static int tegra_powergate_remove_clamping(enum tegra_powergate id)
return 0;
}
+static void tegra_powergate_ram_repair(void)
+{
+#ifdef CONFIG_TEGRA124
+ struct flow_ctlr *flow = (struct flow_ctlr *)NV_PA_FLOW_BASE;
+
+ /* Request RAM repair for cluster 0 and wait until complete */
+ setbits_le32(&flow->ram_repair, RAM_REPAIR_REQ);
+ while (!(readl(&flow->ram_repair) & RAM_REPAIR_STS))
+ ;
+
+ /* Same for cluster 1 */
+ setbits_le32(&flow->ram_repair_cluster1, RAM_REPAIR_REQ);
+ while (!(readl(&flow->ram_repair_cluster1) & RAM_REPAIR_STS))
+ ;
+#endif
+}
+
int tegra_powergate_sequence_power_up(enum tegra_powergate id,
enum periph_id periph)
{
int err;
+ tegra_powergate_ram_repair();
reset_set_enable(periph, 1);
err = tegra_powergate_power_on(id);