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authorGreg Watson <gwatson@lanl.gov>2005-10-20 01:44:21 +0000
committerGreg Watson <gwatson@lanl.gov>2005-10-20 01:44:21 +0000
commit8d4edc2fcd003990228f505ce717c32b45831f2d (patch)
tree3024ed9def3ae2572c42d45facf5cf7259325f6c /src/pmc
parent58cb0bf1dfe1fa39760c3edcc68146fe6ed9d474 (diff)
changes to support new ppc arch
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2064 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/pmc')
-rw-r--r--src/pmc/altimus/mpc7410/Config.lb1
-rw-r--r--src/pmc/altimus/mpc7410/setup.c88
2 files changed, 89 insertions, 0 deletions
diff --git a/src/pmc/altimus/mpc7410/Config.lb b/src/pmc/altimus/mpc7410/Config.lb
index c162aa15ba..63b3383e31 100644
--- a/src/pmc/altimus/mpc7410/Config.lb
+++ b/src/pmc/altimus/mpc7410/Config.lb
@@ -12,3 +12,4 @@ dir /northbridge/motrola/mpc107
## Build the objects we have code for in this directory.
##
object mpc7410.o
+object setup.o
diff --git a/src/pmc/altimus/mpc7410/setup.c b/src/pmc/altimus/mpc7410/setup.c
new file mode 100644
index 0000000000..e8c214c7d8
--- /dev/null
+++ b/src/pmc/altimus/mpc7410/setup.c
@@ -0,0 +1,88 @@
+/* Copyright 2000 AG Electronics Ltd. */
+/* This code is distributed without warranty under the GPL v2 (see COPYING) */
+
+#include "ppc.h"
+#include "ppcreg.h"
+#include "ppc74xx.h"
+
+extern void ppc_init_float_registers(const double *);
+/*RODATA static const double dummy_float = 1.0;*/
+static const double dummy_float = 1.0;
+
+#define HID0_DCACHE HID0_DCE
+#define MSR_DATA MSR_DR
+
+void ppc_setup_cpu(int icache)
+{
+ int type = ppc_getpvr() >> 16;
+ int version = ppc_getpvr() & 0xffff;
+
+ if (type == 0xc)
+ {
+ if (version == 0x0200)
+ ppc_set1015(0x19000004);
+ else if (((version & 0xff00) == 0x0200) &&
+ (version != 0x0209))
+ ppc_set1015(0x01000000);
+ }
+ if (icache)
+ {
+ ppc_sethid0(HID0_NHR | HID0_BHT | HID0_ICE | HID0_ICFI
+ | HID0_BTIC | HID0_DCACHE);
+ ppc_sethid0(HID0_DPM | HID0_NHR | HID0_BHT | HID0_ICE
+ | HID0_BTIC | HID0_DCACHE);
+ }
+ else
+ {
+ ppc_sethid0(HID0_DPM | HID0_NHR | HID0_BHT | HID0_BTIC
+ | HID0_DCACHE);
+ }
+#if 1
+ /* if (type == 8 || type == 12) */
+ {
+ ppc_setmsr(MSR_FP | MSR_DATA);
+ ppc_init_float_registers(&dummy_float);
+ }
+#endif
+}
+
+void ppc_enable_dcache(void)
+{
+ /*
+ * Already enabled in crt0.S
+ */
+#if 0
+ unsigned hid0 = ppc_gethid0();
+ ppc_sethid0(hid0 | HID0_DCFI | HID0_DCE);
+ ppc_sethid0(hid0 | HID0_DCE);
+#endif
+}
+
+void ppc_disable_dcache(void)
+{
+ unsigned hid0 = ppc_gethid0();
+ ppc_sethid0(hid0 & ~HID0_DCE);
+}
+
+void ppc_enable_mmu(void)
+{
+ unsigned msr = ppc_getmsr();
+ ppc_setmsr(msr | MSR_DR | MSR_IR);
+}
+
+void make_coherent(void *base, unsigned length)
+{
+ unsigned hid0 = ppc_gethid0();
+
+ if (hid0 & HID0_DCE)
+ {
+ unsigned i;
+ unsigned offset = 0x1f & (unsigned) base;
+ unsigned adjusted_base = (unsigned) base & ~0x1f;
+ for(i = 0; i < length + offset; i+= 32)
+ __asm__ volatile ("dcbf %1,%0" : : "r" (adjusted_base), "r" (i));
+ if (hid0 & HID0_ICE)
+ for(i = 0; i < length + offset; i+= 32)
+ __asm__ volatile ("icbi %1,%0" : : "r" (adjusted_base), "r" (i));
+ }
+}