powerpc/85xx: Replace CONFIG_SYS_HAS_SERDES with a weak function

Instead of a #define use a null weak function for fsl_serdes_init

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

arch/powerpc/cpu/mpc85xx/cpu_init.c

@@ -232,6 +232,12 @@ void cpu_init_f (void)
 	invalidate_cpc();
 }
 
+/* Implement a dummy function for those platforms w/o SERDES */
+static void __fsl_serdes__init(void)
+{
+	return ;
+}
+__attribute__((weak, alias("__fsl_serdes__init"))) void fsl_serdes_init(void);
 
 /*
  * Initialize L2 as cache.
@@ -375,10 +381,8 @@ int cpu_init_r(void)
 	qe_reset();
 #endif
 
-#if defined(CONFIG_SYS_HAS_SERDES)
 	/* needs to be in ram since code uses global static vars */
 	fsl_serdes_init();
-#endif
 
 #if defined(CONFIG_MP)
 	setup_mp();

include/configs/MPC8536DS.h

@@ -78,7 +78,6 @@
 #define CONFIG_FSL_PCI_INIT	1	/* Use common FSL init code */
 #define CONFIG_FSL_PCIE_RESET	1	/* need PCIe reset errata */
 #define CONFIG_SYS_PCI_64BIT	1	/* enable 64-bit PCI resources */
-#define CONFIG_SYS_HAS_SERDES		/* has SERDES */
 
 #define CONFIG_FSL_LAW		1	/* Use common FSL init code */
 #define CONFIG_E1000		1	/* Defind e1000 pci Ethernet card*/

include/configs/P1022DS.h

@@ -34,7 +34,6 @@
 #define CONFIG_FSL_PCI_INIT		/* Use common FSL init code */
 #define CONFIG_FSL_PCIE_RESET		/* need PCIe reset errata */
 #define CONFIG_SYS_PCI_64BIT		/* enable 64-bit PCI resources */
-#define CONFIG_SYS_HAS_SERDES		/* has SERDES */
 
 #define CONFIG_PHYS_64BIT
 #define CONFIG_ENABLE_36BIT_PHYS

include/configs/corenet_ds.h

@@ -50,7 +50,6 @@
 #define CONFIG_PCIE3			/* PCIE controler 3 */
 #define CONFIG_FSL_PCI_INIT		/* Use common FSL init code */
 #define CONFIG_SYS_PCI_64BIT		/* enable 64-bit PCI resources */
-#define CONFIG_SYS_HAS_SERDES		/* has SERDES */
 
 #define CONFIG_SRIO1			/* SRIO port 1 */
 #define CONFIG_SRIO2			/* SRIO port 2 */