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authorRalf Baechle <ralf@linux-mips.org>2008-06-12 18:26:02 +0200
committerRalf Baechle <ralf@linux-mips.org>2008-06-16 16:14:47 +0200
commit89052bd7b393434f7c573ce6a3b88c5f143586d2 (patch)
treee68bf4c2b46ca1c33b0fa1b78da6ea2a4db3aff4 /arch/mips
parent[MIPS] Add RM200 with R5000 CPU to known ARC machines (diff)
downloadlinux-89052bd7b393434f7c573ce6a3b88c5f143586d2.tar.xz
linux-89052bd7b393434f7c573ce6a3b88c5f143586d2.zip
[MIPS] Fix build for PNX platforms.
Build error was caused by commit 351336929ccf222ae38ff0cb7a8dd5fd5c6236a0. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/mm/c-r4k.c26
-rw-r--r--arch/mips/nxp/pnx8550/jbs/board_setup.c11
-rw-r--r--arch/mips/nxp/pnx8550/stb810/board_setup.c10
3 files changed, 28 insertions, 19 deletions
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 643c8bcffff3..c41ea2284954 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -1226,6 +1226,28 @@ void au1x00_fixup_config_od(void)
}
}
+/* CP0 hazard avoidance. */
+#define NXP_BARRIER() \
+ __asm__ __volatile__( \
+ ".set noreorder\n\t" \
+ "nop; nop; nop; nop; nop; nop;\n\t" \
+ ".set reorder\n\t")
+
+static void nxp_pr4450_fixup_config(void)
+{
+ unsigned long config0;
+
+ config0 = read_c0_config();
+
+ /* clear all three cache coherency fields */
+ config0 &= ~(0x7 | (7 << 25) | (7 << 28));
+ config0 |= (((_page_cachable_default >> _CACHE_SHIFT) << 0) |
+ ((_page_cachable_default >> _CACHE_SHIFT) << 25) |
+ ((_page_cachable_default >> _CACHE_SHIFT) << 28));
+ write_c0_config(config0);
+ NXP_BARRIER();
+}
+
static int __cpuinitdata cca = -1;
static int __init cca_setup(char *str)
@@ -1271,6 +1293,10 @@ static void __cpuinit coherency_setup(void)
case CPU_AU1500: /* rev. AB */
au1x00_fixup_config_od();
break;
+
+ case PRID_IMP_PR4450:
+ nxp_pr4450_fixup_config();
+ break;
}
}
diff --git a/arch/mips/nxp/pnx8550/jbs/board_setup.c b/arch/mips/nxp/pnx8550/jbs/board_setup.c
index f92826e0096d..57dd903ca408 100644
--- a/arch/mips/nxp/pnx8550/jbs/board_setup.c
+++ b/arch/mips/nxp/pnx8550/jbs/board_setup.c
@@ -47,16 +47,7 @@
void __init board_setup(void)
{
- unsigned long config0, configpr;
-
- config0 = read_c0_config();
-
- /* clear all three cache coherency fields */
- config0 &= ~(0x7 | (7<<25) | (7<<28));
- config0 |= (CONF_CM_DEFAULT | (CONF_CM_DEFAULT<<25) |
- (CONF_CM_DEFAULT<<28));
- write_c0_config(config0);
- BARRIER;
+ unsigned long configpr;
configpr = read_c0_config7();
configpr |= (1<<19); /* enable tlb */
diff --git a/arch/mips/nxp/pnx8550/stb810/board_setup.c b/arch/mips/nxp/pnx8550/stb810/board_setup.c
index 1282c27cfcb7..af2a55e0b4e9 100644
--- a/arch/mips/nxp/pnx8550/stb810/board_setup.c
+++ b/arch/mips/nxp/pnx8550/stb810/board_setup.c
@@ -33,15 +33,7 @@
void __init board_setup(void)
{
- unsigned long config0, configpr;
-
- config0 = read_c0_config();
-
- /* clear all three cache coherency fields */
- config0 &= ~(0x7 | (7<<25) | (7<<28));
- config0 |= (CONF_CM_DEFAULT | (CONF_CM_DEFAULT<<25) |
- (CONF_CM_DEFAULT<<28));
- write_c0_config(config0);
+ unsigned long configpr;
configpr = read_c0_config7();
configpr |= (1<<19); /* enable tlb */