diff options
Diffstat (limited to 'arch/microblaze/kernel/cpu/cpuinfo.c')
| -rw-r--r-- | arch/microblaze/kernel/cpu/cpuinfo.c | 51 |
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(); + } } |
