summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorChin Liang See <clsee@altera.com>2013-08-07 10:08:03 -0500
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2013-09-06 12:09:06 +0200
commit68e1747f9c0506159e8ecc9a4feb58e9c65a7b39 (patch)
treec4b1a1ba9d50e05a3839b51a8f4cbeeb6762f3fd
parent31ad864e47f03288bf1d4232913b38ddb624345c (diff)
downloadtalos-obmc-uboot-68e1747f9c0506159e8ecc9a4feb58e9c65a7b39.tar.gz
talos-obmc-uboot-68e1747f9c0506159e8ecc9a4feb58e9c65a7b39.zip
socfpga: Creating driver for Reset Manager
Consolidating reset code into reset_manager.c. Also separating reset configuration for virtual target and real hardware Cyclone V development kit Signed-off-by: Chin Liang See <clsee@altera.com> Reviewed-by: Pavel Machek <pavel@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Pavel Machek <pavel@denx.de> Cc: Dinh Nguyen <dinguyen@altera.com> Cc: Tom Rini <trini@ti.com> Cc: Albert Aribaud <albert.u.boot@aribaud.net>
-rw-r--r--arch/arm/cpu/armv7/socfpga/Makefile2
-rw-r--r--arch/arm/cpu/armv7/socfpga/misc.c27
-rw-r--r--arch/arm/cpu/armv7/socfpga/reset_manager.c39
-rw-r--r--arch/arm/include/asm/arch-socfpga/reset_manager.h10
4 files changed, 47 insertions, 31 deletions
diff --git a/arch/arm/cpu/armv7/socfpga/Makefile b/arch/arm/cpu/armv7/socfpga/Makefile
index 3b48ac9b2b..5024fc55e2 100644
--- a/arch/arm/cpu/armv7/socfpga/Makefile
+++ b/arch/arm/cpu/armv7/socfpga/Makefile
@@ -13,7 +13,7 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(SOC).o
SOBJS := lowlevel_init.o
-COBJS-y := misc.o timer.o
+COBJS-y := misc.o timer.o reset_manager.o
COBJS-$(CONFIG_SPL_BUILD) += spl.o
COBJS := $(COBJS-y)
diff --git a/arch/arm/cpu/armv7/socfpga/misc.c b/arch/arm/cpu/armv7/socfpga/misc.c
index 66edb3c20f..2f1c7160f1 100644
--- a/arch/arm/cpu/armv7/socfpga/misc.c
+++ b/arch/arm/cpu/armv7/socfpga/misc.c
@@ -6,36 +6,9 @@
#include <common.h>
#include <asm/io.h>
-#include <asm/arch/reset_manager.h>
DECLARE_GLOBAL_DATA_PTR;
-static const struct socfpga_reset_manager *reset_manager_base =
- (void *)SOCFPGA_RSTMGR_ADDRESS;
-
-/*
- * Write the reset manager register to cause reset
- */
-void reset_cpu(ulong addr)
-{
- /* request a warm reset */
- writel(RSTMGR_CTRL_SWWARMRSTREQ_LSB, &reset_manager_base->ctrl);
- /*
- * infinite loop here as watchdog will trigger and reset
- * the processor
- */
- while (1)
- ;
-}
-
-/*
- * Release peripherals from reset based on handoff
- */
-void reset_deassert_peripherals_handoff(void)
-{
- writel(0, &reset_manager_base->per_mod_reset);
-}
-
int dram_init(void)
{
gd->ram_size = get_ram_size((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
diff --git a/arch/arm/cpu/armv7/socfpga/reset_manager.c b/arch/arm/cpu/armv7/socfpga/reset_manager.c
new file mode 100644
index 0000000000..e320c011ae
--- /dev/null
+++ b/arch/arm/cpu/armv7/socfpga/reset_manager.c
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2013 Altera Corporation <www.altera.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/reset_manager.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static const struct socfpga_reset_manager *reset_manager_base =
+ (void *)SOCFPGA_RSTMGR_ADDRESS;
+
+/*
+ * Write the reset manager register to cause reset
+ */
+void reset_cpu(ulong addr)
+{
+ /* request a warm reset */
+ writel((1 << RSTMGR_CTRL_SWWARMRSTREQ_LSB),
+ &reset_manager_base->ctrl);
+ /*
+ * infinite loop here as watchdog will trigger and reset
+ * the processor
+ */
+ while (1)
+ ;
+}
+
+/*
+ * Release peripherals from reset based on handoff
+ */
+void reset_deassert_peripherals_handoff(void)
+{
+ writel(0, &reset_manager_base->per_mod_reset);
+}
diff --git a/arch/arm/include/asm/arch-socfpga/reset_manager.h b/arch/arm/include/asm/arch-socfpga/reset_manager.h
index 13d7357702..3e95476828 100644
--- a/arch/arm/include/asm/arch-socfpga/reset_manager.h
+++ b/arch/arm/include/asm/arch-socfpga/reset_manager.h
@@ -11,16 +11,20 @@ void reset_cpu(ulong addr);
void reset_deassert_peripherals_handoff(void);
struct socfpga_reset_manager {
- u32 padding1;
+ u32 status;
u32 ctrl;
- u32 padding2;
- u32 padding3;
+ u32 counts;
+ u32 padding1;
u32 mpu_mod_reset;
u32 per_mod_reset;
u32 per2_mod_reset;
u32 brg_mod_reset;
};
+#if defined(CONFIG_SOCFPGA_VIRTUAL_TARGET)
+#define RSTMGR_CTRL_SWWARMRSTREQ_LSB 2
+#else
#define RSTMGR_CTRL_SWWARMRSTREQ_LSB 1
+#endif
#endif /* _RESET_MANAGER_H_ */
OpenPOWER on IntegriCloud