powerpc/44x: pci: Add a want_sdr flag into ppc4xx_pciex_hwops

Currituck doesn't need nor use SDR so aborting the pci setup if there is
no sdr-base would be bad.

Add a flag to ppc4xx_pciex_hwops for the backends to state if they need
SDR and then only complain and abort if they do and it's not found in
the device tree.

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Josh Boyer <jwboyer@gmail.com>

1 files changed, 14 insertions, 6 deletions

diff --git a/arch/powerpc/sysdev/ppc4xx_pci.c b/arch/powerpc/sysdev/ppc4xx_pci.c
index 16f5eba6773..95d5eaa0caa 100644
--- a/arch/powerpc/sysdev/ppc4xx_pci.c
+++ b/arch/powerpc/sysdev/ppc4xx_pci.c
@@ -647,6 +647,7 @@ static unsigned int ppc4xx_pciex_port_count;
 
 struct ppc4xx_pciex_hwops
 {
+        bool want_sdr;
         int (*core_init)(struct device_node *np);
         int (*port_init_hw)(struct ppc4xx_pciex_port *port);
         int (*setup_utl)(struct ppc4xx_pciex_port *port);
@@ -916,6 +917,7 @@ static int ppc440speB_pciex_init_utl(struct ppc4xx_pciex_port *port)
 
 static struct ppc4xx_pciex_hwops ppc440speA_pcie_hwops __initdata =
 {
+        .want_sdr       = true,
         .core_init      = ppc440spe_pciex_core_init,
         .port_init_hw   = ppc440speA_pciex_init_port_hw,
         .setup_utl      = ppc440speA_pciex_init_utl,
@@ -924,6 +926,7 @@ static struct ppc4xx_pciex_hwops ppc440speA_pcie_hwops __initdata =
 
 static struct ppc4xx_pciex_hwops ppc440speB_pcie_hwops __initdata =
 {
+        .want_sdr       = true,
         .core_init      = ppc440spe_pciex_core_init,
         .port_init_hw   = ppc440speB_pciex_init_port_hw,
         .setup_utl      = ppc440speB_pciex_init_utl,
@@ -1034,6 +1037,7 @@ static int ppc460ex_pciex_init_utl(struct ppc4xx_pciex_port *port)
 
 static struct ppc4xx_pciex_hwops ppc460ex_pcie_hwops __initdata =
 {
+        .want_sdr       = true,
         .core_init      = ppc460ex_pciex_core_init,
         .port_init_hw   = ppc460ex_pciex_init_port_hw,
         .setup_utl      = ppc460ex_pciex_init_utl,
@@ -1181,6 +1185,7 @@ done:
 }
 
 static struct ppc4xx_pciex_hwops ppc460sx_pcie_hwops __initdata = {
+        .want_sdr       = true,
         .core_init      = ppc460sx_pciex_core_init,
         .port_init_hw   = ppc460sx_pciex_init_port_hw,
         .setup_utl      = ppc460sx_pciex_init_utl,
@@ -1276,6 +1281,7 @@ static int ppc405ex_pciex_init_utl(struct ppc4xx_pciex_port *port)
 
 static struct ppc4xx_pciex_hwops ppc405ex_pcie_hwops __initdata =
 {
+        .want_sdr       = true,
         .core_init      = ppc405ex_pciex_core_init,
         .port_init_hw   = ppc405ex_pciex_init_port_hw,
         .setup_utl      = ppc405ex_pciex_init_utl,
@@ -1972,13 +1978,15 @@ static void __init ppc4xx_probe_pciex_bridge(struct device_node *np)
         }
 
         port->node = of_node_get(np);
-        pval = of_get_property(np, "sdr-base", NULL);
-        if (pval == NULL) {
-                printk(KERN_ERR "PCIE: missing sdr-base for %s\n",
-                       np->full_name);
-                return;
+        if (ppc4xx_pciex_hwops->want_sdr) {
+                pval = of_get_property(np, "sdr-base", NULL);
+                if (pval == NULL) {
+                        printk(KERN_ERR "PCIE: missing sdr-base for %s\n",
+                               np->full_name);
+                        return;
+                }
+                port->sdr_base = *pval;
         }
-        port->sdr_base = *pval;
 
         /* Check if device_type property is set to "pci" or "pci-endpoint".
          * Resulting from this setup this PCIe port will be configured