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-rw-r--r--cpu/ppc4xx/cpu_init.c20
-rw-r--r--include/ppc440.h2
2 files changed, 20 insertions, 2 deletions
diff --git a/cpu/ppc4xx/cpu_init.c b/cpu/ppc4xx/cpu_init.c
index 1e9423a..ac64279 100644
--- a/cpu/ppc4xx/cpu_init.c
+++ b/cpu/ppc4xx/cpu_init.c
@@ -138,8 +138,8 @@ void reconfigure_pll(u32 new_cpu_freq)
void
cpu_init_f (void)
{
-#if defined(CONFIG_WATCHDOG)
- unsigned long val;
+#if defined(CONFIG_WATCHDOG) || defined(CONFIG_460EX)
+ u32 val;
#endif
reconfigure_pll(CFG_PLL_RECONFIG);
@@ -272,6 +272,22 @@ cpu_init_f (void)
reset_4xx_watchdog();
#endif /* CONFIG_WATCHDOG */
+
+#if defined(CONFIG_460EX)
+ /*
+ * Set SDR0_AHB_CFG[A2P_INCR4] (bit 24) and
+ * clear SDR0_AHB_CFG[A2P_PROT2] (bit 25) for a new 460EX errata
+ * regarding concurrent use of AHB USB OTG, USB 2.0 host and SATA
+ */
+ mfsdr(SDR0_AHB_CFG, val);
+ val |= 0x80;
+ val &= ~0x40;
+ mtsdr(SDR0_AHB_CFG, val);
+ mfsdr(SDR0_USB2HOST_CFG, val);
+ val &= ~0xf00;
+ val |= 0x400;
+ mtsdr(SDR0_USB2HOST_CFG, val);
+#endif /* CONFIG_460EX */
}
/*
diff --git a/include/ppc440.h b/include/ppc440.h
index 62f1680..c581f1b 100644
--- a/include/ppc440.h
+++ b/include/ppc440.h
@@ -2471,6 +2471,8 @@
#define AHB_TOP 0xA4
#define AHB_BOT 0xA5
+#define SDR0_AHB_CFG 0x370
+#define SDR0_USB2HOST_CFG 0x371
#endif /* CONFIG_460EX || CONFIG_460GT */
#define SDR0_SDCS_SDD (0x80000000 >> 31)