Support for the SBC610 VPX Single Board Computer from GE Fanuc (PowerPC
MPC8641D).
Fixup to correctly reconfigure USB, provided by an NEC uPD720101, after
device is reset. This requires a set of chip specific registers in the
devices configuration space to be correctly written, enabling all ports
and switching the device to use an external 48-MHz Oscillator.
Signed-off-by: Martyn Welch <[EMAIL PROTECTED]>
---
arch/powerpc/platforms/86xx/gef_sbc610.c | 17 +++++++++++++++++
1 files changed, 17 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/platforms/86xx/gef_sbc610.c
b/arch/powerpc/platforms/86xx/gef_sbc610.c
index 3543a9e..605678c 100644
--- a/arch/powerpc/platforms/86xx/gef_sbc610.c
+++ b/arch/powerpc/platforms/86xx/gef_sbc610.c
@@ -12,6 +12,8 @@
*
* Based on: mpc86xx_hpcn.c (MPC86xx HPCN board specific routines)
* Copyright 2006 Freescale Semiconductor Inc.
+ *
+ * NEC fixup adapted from arch/mips/pci/fixup-lm2e.c
*/
#include <linux/stddef.h>
@@ -83,6 +85,21 @@ static void gef_sbc610_show_cpuinfo(struct seq_file *m)
seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024));
}
+static void __init gef_sbc610_nec_fixup(struct pci_dev *pdev)
+{
+ unsigned int val;
+
+ printk(KERN_INFO "Running NEC uPD720101 Fixup\n");
+
+ /* Ensure ports 1, 2, 3, 4 & 5 are enabled */
+ pci_read_config_dword(pdev, 0xe0, &val);
+ pci_write_config_dword(pdev, 0xe0, (val & ~7) | 0x5);
+
+ /* System clock is 48-MHz Oscillator and EHCI Enabled. */
+ pci_write_config_dword(pdev, 0xe4, 1 << 5);
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_USB,
+ gef_sbc610_nec_fixup);
/*
* Called very early, device-tree isn't unflattened
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