Commit e051af57 authored by Michal Simek's avatar Michal Simek

microblaze: Extend cpuinfo for support write-back caches

There is missing checking agains PVR but this is not important
for now. There are some missing checking too.
Signed-off-by: default avatarMichal Simek <monstr@monstr.eu>
parent 44e4e196
...@@ -53,6 +53,7 @@ struct cpuinfo { ...@@ -53,6 +53,7 @@ struct cpuinfo {
u32 dcache_write; u32 dcache_write;
u32 dcache_line_length; u32 dcache_line_length;
u32 dcache_size; u32 dcache_size;
u32 dcache_wb;
unsigned long dcache_base; unsigned long dcache_base;
unsigned long dcache_high; unsigned long dcache_high;
......
...@@ -96,6 +96,7 @@ void __init set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu) ...@@ -96,6 +96,7 @@ void __init set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu)
ci->dcache_size = fcpu(cpu, "d-cache-size"); ci->dcache_size = fcpu(cpu, "d-cache-size");
ci->dcache_base = fcpu(cpu, "d-cache-baseaddr"); ci->dcache_base = fcpu(cpu, "d-cache-baseaddr");
ci->dcache_high = fcpu(cpu, "d-cache-highaddr"); ci->dcache_high = fcpu(cpu, "d-cache-highaddr");
ci->dcache_wb = fcpu(cpu, "xlnx,dcache-use-writeback");
ci->use_dopb = fcpu(cpu, "xlnx,d-opb"); ci->use_dopb = fcpu(cpu, "xlnx,d-opb");
ci->use_iopb = fcpu(cpu, "xlnx,i-opb"); ci->use_iopb = fcpu(cpu, "xlnx,i-opb");
......
...@@ -103,11 +103,15 @@ static int show_cpuinfo(struct seq_file *m, void *v) ...@@ -103,11 +103,15 @@ static int show_cpuinfo(struct seq_file *m, void *v)
else else
count += seq_printf(m, "Icache:\t\tno\n"); count += seq_printf(m, "Icache:\t\tno\n");
if (cpuinfo.use_dcache) if (cpuinfo.use_dcache) {
count += seq_printf(m, count += seq_printf(m,
"Dcache:\t\t%ukB\n", "Dcache:\t\t%ukB\n",
cpuinfo.dcache_size >> 10); cpuinfo.dcache_size >> 10);
else if (cpuinfo.dcache_wb)
count += seq_printf(m, "\t\twrite-back\n");
else
count += seq_printf(m, "\t\twrite-through\n");
} else
count += seq_printf(m, "Dcache:\t\tno\n"); count += seq_printf(m, "Dcache:\t\tno\n");
count += seq_printf(m, count += seq_printf(m,
......
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