1 files changed, 36 insertions, 0 deletions

diff --git a/arch/mips/txx9/generic/pci.c b/arch/mips/txx9/generic/pci.c
index 0b92d8c13208..7b637a7c0e66 100644
--- a/arch/mips/txx9/generic/pci.c
+++ b/arch/mips/txx9/generic/pci.c
@@ -386,3 +386,39 @@ int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
         return txx9_board_vec->pci_map_irq(dev, slot, pin);
 }
+
+char * (*txx9_board_pcibios_setup)(char *str) __devinitdata;
+
+char *__devinit txx9_pcibios_setup(char *str)
+{
+        if (txx9_board_pcibios_setup && !txx9_board_pcibios_setup(str))
+                return NULL;
+        if (!strcmp(str, "picmg")) {
+                /* PICMG compliant backplane (TOSHIBA JMB-PICMG-ATX
+                   (5V or 3.3V), JMB-PICMG-L2 (5V only), etc.) */
+                txx9_pci_option |= TXX9_PCI_OPT_PICMG;
+                return NULL;
+        } else if (!strcmp(str, "nopicmg")) {
+                /* non-PICMG compliant backplane (TOSHIBA
+                   RBHBK4100,RBHBK4200, Interface PCM-PCM05, etc.) */
+                txx9_pci_option &= ~TXX9_PCI_OPT_PICMG;
+                return NULL;
+        } else if (!strncmp(str, "clk=", 4)) {
+                char *val = str + 4;
+                txx9_pci_option &= ~TXX9_PCI_OPT_CLK_MASK;
+                if (strcmp(val, "33") == 0)
+                        txx9_pci_option |= TXX9_PCI_OPT_CLK_33;
+                else if (strcmp(val, "66") == 0)
+                        txx9_pci_option |= TXX9_PCI_OPT_CLK_66;
+                else /* "auto" */
+                        txx9_pci_option |= TXX9_PCI_OPT_CLK_AUTO;
+                return NULL;
+        } else if (!strncmp(str, "err=", 4)) {
+                if (!strcmp(str + 4, "panic"))
+                        txx9_pci_err_action = TXX9_PCI_ERR_PANIC;
+                else if (!strcmp(str + 4, "ignore"))
+                        txx9_pci_err_action = TXX9_PCI_ERR_IGNORE;
+                return NULL;
+        }
+        return str;
+}