powerpc: Drop unused code related to generic board

Since generic board init is enabled, this is not used. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>

arch/powerpc/cpu/mpc5xxx/start.S

@@ -83,8 +83,7 @@ _start:
 	 * This function is called when the platform is build with SPL
 	 * support from the main (full-blown) U-Boot. And the GD needs
 	 * to get cleared (again) so that the following generic
-	 * board support code, defined via CONFIG_SYS_GENERIC_BOARD,
-	 * initializes all variables correctly.
+	 * board support code initializes all variables correctly.
 	 */
 	mr	r3, r2		/* parameter 1:	 GD pointer		*/
 	li	r4,0		/* parameter 2:	 value to fill		*/

arch/powerpc/cpu/ppc4xx/cpu_init.c

@@ -449,13 +449,6 @@ cpu_init_f (void)
 	mtdcr(PLB4A1_ACR, (mfdcr(PLB4A1_ACR) & ~PLB4Ax_ACR_RDP_MASK) |
 	      PLB4Ax_ACR_RDP_4DEEP);
 #endif /* CONFIG_440SP/SPE || CONFIG_460EX/GT || CONFIG_405EX */
-
-#ifndef CONFIG_SYS_GENERIC_BOARD
-	gd = (gd_t *)(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
-
-	/* Clear initial global data */
-	memset((void *)gd, 0, sizeof(gd_t));
-#endif
 }
 
 /*

arch/powerpc/cpu/ppc4xx/start.S

@@ -760,7 +760,6 @@ _start:
 #endif
 
 	bl	cpu_init_f	/* run low-level CPU init code	   (from Flash) */
-#ifdef CONFIG_SYS_GENERIC_BOARD
 	mr	r3, r1
 	bl	board_init_f_alloc_reserve
 	mr	r1, r3
@@ -768,7 +767,6 @@ _start:
 	li	r0,0
 	stwu	r0, -4(r1)
 	stwu	r0, -4(r1)
-#endif
 	li	r3, 0
 	bl	board_init_f
 	/* NOTREACHED - board_init_f() does not return */
@@ -1037,14 +1035,12 @@ _start:
 	GET_GOT			/* initialize GOT access			*/
 
 	bl	cpu_init_f	/* run low-level CPU init code	   (from Flash) */
-#ifdef CONFIG_SYS_GENERIC_BOARD
 	mr	r3, r1
 	bl	board_init_f_alloc_reserve
 	mr	r1, r3
 	bl	board_init_f_init_reserve
 	stwu	r0, -4(r1)
 	stwu	r0, -4(r1)
-#endif
 	li	r3, 0
 	bl	board_init_f	/* run first part of init code (from Flash)	*/
 	/* NOTREACHED - board_init_f() does not return */