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authorDinh Nguyen <dinguyen@opensource.altera.com>2015-07-20 18:23:13 +0200
committerDinh Nguyen <dinguyen@opensource.altera.com>2015-07-20 22:44:43 +0200
commitcd871d517d46f26943f3c8f61c0d2ac6665da6a2 (patch)
tree5abb55bbf4bb30df7694d27a4e783c4a4e5aadd1 /arch/arm/mach-socfpga
parentARM: socfpga: add smp_ops.cpu_kill to make kexec/kdump available (diff)
downloadlinux-cd871d517d46f26943f3c8f61c0d2ac6665da6a2.tar.xz
linux-cd871d517d46f26943f3c8f61c0d2ac6665da6a2.zip
ARM: socfpga: add reset for the Arria 10 platform
Since the Arria10's reset register offset is different from the Cyclone/Arria 5, it's best to add a new DT_MACHINE_START() for the Arria10. Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com> --- v2: use altera_a10_dt_match for the A10 machine desc
Diffstat (limited to 'arch/arm/mach-socfpga')
-rw-r--r--arch/arm/mach-socfpga/core.h1
-rw-r--r--arch/arm/mach-socfpga/socfpga.c26
2 files changed, 27 insertions, 0 deletions
diff --git a/arch/arm/mach-socfpga/core.h b/arch/arm/mach-socfpga/core.h
index 7259c3732702..5bc6ea87cdf7 100644
--- a/arch/arm/mach-socfpga/core.h
+++ b/arch/arm/mach-socfpga/core.h
@@ -25,6 +25,7 @@
#define SOCFPGA_RSTMGR_MODPERRST 0x14
#define SOCFPGA_RSTMGR_BRGMODRST 0x1c
+#define SOCFPGA_A10_RSTMGR_CTRL 0xC
#define SOCFPGA_A10_RSTMGR_MODMPURST 0x20
/* System Manager bits */
diff --git a/arch/arm/mach-socfpga/socfpga.c b/arch/arm/mach-socfpga/socfpga.c
index 19643a756c48..a1c0efaa8794 100644
--- a/arch/arm/mach-socfpga/socfpga.c
+++ b/arch/arm/mach-socfpga/socfpga.c
@@ -74,6 +74,19 @@ static void socfpga_cyclone5_restart(enum reboot_mode mode, const char *cmd)
writel(temp, rst_manager_base_addr + SOCFPGA_RSTMGR_CTRL);
}
+static void socfpga_arria10_restart(enum reboot_mode mode, const char *cmd)
+{
+ u32 temp;
+
+ temp = readl(rst_manager_base_addr + SOCFPGA_A10_RSTMGR_CTRL);
+
+ if (mode == REBOOT_HARD)
+ temp |= RSTMGR_CTRL_SWCOLDRSTREQ;
+ else
+ temp |= RSTMGR_CTRL_SWWARMRSTREQ;
+ writel(temp, rst_manager_base_addr + SOCFPGA_A10_RSTMGR_CTRL);
+}
+
static const char *altera_dt_match[] = {
"altr,socfpga",
NULL
@@ -86,3 +99,16 @@ DT_MACHINE_START(SOCFPGA, "Altera SOCFPGA")
.restart = socfpga_cyclone5_restart,
.dt_compat = altera_dt_match,
MACHINE_END
+
+static const char *altera_a10_dt_match[] = {
+ "altr,socfpga-arria10",
+ NULL
+};
+
+DT_MACHINE_START(SOCFPGA_A10, "Altera SOCFPGA Arria10")
+ .l2c_aux_val = 0,
+ .l2c_aux_mask = ~0,
+ .init_irq = socfpga_init_irq,
+ .restart = socfpga_arria10_restart,
+ .dt_compat = altera_a10_dt_match,
+MACHINE_END