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Diffstat (limited to 'arch/microblaze/kernel/cpu/cpuinfo.c')
-rw-r--r--arch/microblaze/kernel/cpu/cpuinfo.c51
1 files changed, 43 insertions, 8 deletions
diff --git a/arch/microblaze/kernel/cpu/cpuinfo.c b/arch/microblaze/kernel/cpu/cpuinfo.c
index 87c79fa275c..234acad79b9 100644
--- a/arch/microblaze/kernel/cpu/cpuinfo.c
+++ b/arch/microblaze/kernel/cpu/cpuinfo.c
@@ -8,6 +8,7 @@
* for more details.
*/
+#include <linux/clk.h>
#include <linux/init.h>
#include <asm/cpuinfo.h>
#include <asm/pvr.h>
@@ -32,6 +33,16 @@ const struct cpu_ver_key cpu_ver_lookup[] = {
{"7.30.a", 0x10},
{"7.30.b", 0x11},
{"8.00.a", 0x12},
+ {"8.00.b", 0x13},
+ {"8.10.a", 0x14},
+ {"8.20.a", 0x15},
+ {"8.20.b", 0x16},
+ {"8.30.a", 0x17},
+ {"8.40.a", 0x18},
+ {"8.40.b", 0x19},
+ {"8.50.a", 0x1a},
+ {"9.0", 0x1b},
+ {"9.1", 0x1d},
{NULL, 0},
};
@@ -52,38 +63,62 @@ const struct family_string_key family_string_lookup[] = {
{"virtex6", 0xe},
/* FIXME There is no key code defined for spartan2 */
{"spartan2", 0xf0},
+ {"kintex7", 0x10},
+ {"artix7", 0x11},
+ {"zynq7000", 0x12},
{NULL, 0},
};
struct cpuinfo cpuinfo;
+static struct device_node *cpu;
void __init setup_cpuinfo(void)
{
- struct device_node *cpu = NULL;
-
cpu = (struct device_node *) of_find_node_by_type(NULL, "cpu");
if (!cpu)
- printk(KERN_ERR "You don't have cpu!!!\n");
+ pr_err("You don't have cpu!!!\n");
- printk(KERN_INFO "%s: initialising\n", __func__);
+ pr_info("%s: initialising\n", __func__);
switch (cpu_has_pvr()) {
case 0:
- printk(KERN_WARNING
- "%s: No PVR support. Using static CPU info from FDT\n",
+ pr_warn("%s: No PVR support. Using static CPU info from FDT\n",
__func__);
set_cpuinfo_static(&cpuinfo, cpu);
break;
/* FIXME I found weird behavior with MB 7.00.a/b 7.10.a
* please do not use FULL PVR with MMU */
case 1:
- printk(KERN_INFO "%s: Using full CPU PVR support\n",
+ pr_info("%s: Using full CPU PVR support\n",
__func__);
set_cpuinfo_static(&cpuinfo, cpu);
set_cpuinfo_pvr_full(&cpuinfo, cpu);
break;
default:
- printk(KERN_WARNING "%s: Unsupported PVR setting\n", __func__);
+ pr_warn("%s: Unsupported PVR setting\n", __func__);
set_cpuinfo_static(&cpuinfo, cpu);
}
+
+ if (cpuinfo.mmu_privins)
+ pr_warn("%s: Stream instructions enabled"
+ " - USERSPACE CAN LOCK THIS KERNEL!\n", __func__);
+}
+
+void __init setup_cpuinfo_clk(void)
+{
+ struct clk *clk;
+
+ clk = of_clk_get(cpu, 0);
+ if (IS_ERR(clk)) {
+ pr_err("ERROR: CPU CCF input clock not found\n");
+ /* take timebase-frequency from DTS */
+ cpuinfo.cpu_clock_freq = fcpu(cpu, "timebase-frequency");
+ } else {
+ cpuinfo.cpu_clock_freq = clk_get_rate(clk);
+ }
+
+ if (!cpuinfo.cpu_clock_freq) {
+ pr_err("ERROR: CPU clock frequency not setup\n");
+ BUG();
+ }
}