85xx: Remove cache config from configs.h

Either use the standard defines in asm/cache.h or grab the information
at runtime from the L1CFG SPR.

Also, minor cleanup in cache.h to make the code a bit more readable.

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

cpu/mpc85xx/start.S

@@ -268,7 +268,10 @@ _start_e500:
 	 */
 	lis	r3,CFG_INIT_RAM_ADDR@h
 	ori	r3,r3,CFG_INIT_RAM_ADDR@l
-	li	r2,(CFG_DCACHE_SIZE / (2 * CFG_CACHELINE_SIZE))
+	mfspr	r2, L1CFG0
+	andi.	r2, r2, 0x1ff
+	/* cache size * 1024 / (2 * L1 line size) */
+	slwi	r2, r2, (10 - 1 - L1_CACHE_SHIFT)
 	mtctr	r2
 	li	r0,0
 1:
@@ -1061,7 +1064,9 @@ unlock_ram_in_cache:
 	/* invalidate the INIT_RAM section */
 	lis	r3,(CFG_INIT_RAM_ADDR & ~31)@h
 	ori	r3,r3,(CFG_INIT_RAM_ADDR & ~31)@l
-	li	r4,(CFG_DCACHE_SIZE / (2 * CFG_CACHELINE_SIZE))
+	mfspr	r4,L1CFG0
+	andi.	r4,r4,0x1ff
+	slwi	r4,r4,(10 - 1 - L1_CACHE_SHIFT)
 	mtctr	r4
 1:	icbi	r0,r3
 	dcbi	r0,r3

include/asm-ppc/cache.h

@@ -8,15 +8,13 @@
 #include <asm/processor.h>
 
 /* bytes per L1 cache line */
-#if !(defined(CONFIG_8xx) || defined(CONFIG_IOP480))
-#if defined(CONFIG_PPC64BRIDGE)
+#if defined(CONFIG_8xx) || defined(CONFIG_IOP480)
+#define	L1_CACHE_SHIFT	4
+#elif defined(CONFIG_PPC64BRIDGE)
 #define L1_CACHE_SHIFT	7
 #else
 #define	L1_CACHE_SHIFT	5
-#endif /* PPC64 */
-#else
-#define	L1_CACHE_SHIFT	4
-#endif /* !(8xx || IOP480) */
+#endif
 
 #define L1_CACHE_BYTES          (1 << L1_CACHE_SHIFT)
 

include/asm-ppc/processor.h

@@ -424,6 +424,8 @@
 #define SPRN_IVOR15	0x19f	/* Interrupt Vector Offset Register 15 */
 
 /* e500 definitions */
+#define SPRN_L1CFG0     0x203   /* L1 Cache Configuration Register 0 */
+#define SPRN_L1CFG1     0x204   /* L1 Cache Configuration Register 1 */
 #define SPRN_L1CSR0     0x3f2   /* L1 Data Cache Control and Status Register 0 */
 #define   L1CSR0_CPE            0x00010000	/* Data Cache Parity Enable */
 #define   L1CSR0_DCFI           0x00000002      /* Data Cache Flash Invalidate */
@@ -621,6 +623,8 @@
 #define MCSRR1	SPRN_MCSRR1
 #define L1CSR0	SPRN_L1CSR0
 #define L1CSR1	SPRN_L1CSR1
+#define L1CFG0	SPRN_L1CFG0
+#define L1CFG1	SPRN_L1CFG1
 #define MCSR	SPRN_MCSR
 #define MMUCSR0	SPRN_MMUCSR0
 #define BUCSR	SPRN_BUCSR

include/configs/MPC8540ADS.h

@@ -460,13 +460,6 @@
  */
 #define CFG_BOOTMAPSZ	(8 << 20)	/* Initial Memory map for Linux*/
 
-/* Cache Configuration */
-#define CFG_DCACHE_SIZE		32768
-#define CFG_CACHELINE_SIZE	32
-#if defined(CONFIG_CMD_KGDB)
-#define CFG_CACHELINE_SHIFT	5	/*log base 2 of the above value*/
-#endif
-
 /*
  * Internal Definitions
  *

include/configs/MPC8540EVAL.h

@@ -319,13 +319,6 @@
  */
 #define CFG_BOOTMAPSZ	(8 << 20) 	/* Initial Memory map for Linux */
 
-/* Cache Configuration */
-#define CFG_DCACHE_SIZE	32768
-#define CFG_CACHELINE_SIZE	32
-#if defined(CONFIG_CMD_KGDB)
-#define CFG_CACHELINE_SHIFT	5	/* log base 2 of the above value */
-#endif
-
 /*
  * Internal Definitions
  *

include/configs/MPC8541CDS.h

@@ -450,13 +450,6 @@ extern unsigned long get_clock_freq(void);
  */
 #define CFG_BOOTMAPSZ	(8 << 20) 	/* Initial Memory map for Linux*/
 
-/* Cache Configuration */
-#define CFG_DCACHE_SIZE	32768
-#define CFG_CACHELINE_SIZE	32
-#if defined(CONFIG_CMD_KGDB)
-#define CFG_CACHELINE_SHIFT	5	/*log base 2 of the above value*/
-#endif
-
 /*
  * Internal Definitions
  *

include/configs/MPC8544DS.h

@@ -444,13 +444,6 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
  */
 #define CFG_BOOTMAPSZ	(8 << 20)	/* Initial Memory map for Linux*/
 
-/* Cache Configuration */
-#define CFG_DCACHE_SIZE		32768
-#define CFG_CACHELINE_SIZE	32
-#if defined(CONFIG_CMD_KGDB)
-#define CFG_CACHELINE_SHIFT	5	/*log base 2 of the above value*/
-#endif
-
 /*
  * Internal Definitions
  *

include/configs/MPC8548CDS.h

@@ -512,13 +512,6 @@ extern unsigned long get_clock_freq(void);
  */
 #define CFG_BOOTMAPSZ	(8 << 20)	/* Initial Memory map for Linux*/
 
-/* Cache Configuration */
-#define CFG_DCACHE_SIZE	32768
-#define CFG_CACHELINE_SIZE	32
-#if defined(CONFIG_CMD_KGDB)
-#define CFG_CACHELINE_SHIFT	5	/*log base 2 of the above value*/
-#endif
-
 /*
  * Internal Definitions
  *

include/configs/MPC8555CDS.h

@@ -450,13 +450,6 @@ extern unsigned long get_clock_freq(void);
  */
 #define CFG_BOOTMAPSZ	(8 << 20) 	/* Initial Memory map for Linux*/
 
-/* Cache Configuration */
-#define CFG_DCACHE_SIZE	32768
-#define CFG_CACHELINE_SIZE	32
-#if defined(CONFIG_CMD_KGDB)
-#define CFG_CACHELINE_SHIFT	5	/*log base 2 of the above value*/
-#endif
-
 /*
  * Internal Definitions
  *

include/configs/MPC8560ADS.h

@@ -490,13 +490,6 @@
  */
 #define CFG_BOOTMAPSZ	(8 << 20)	/* Initial Memory map for Linux*/
 
-/* Cache Configuration */
-#define CFG_DCACHE_SIZE		32768
-#define CFG_CACHELINE_SIZE	32
-#if defined(CONFIG_CMD_KGDB)
-#define CFG_CACHELINE_SHIFT	5	/*log base 2 of the above value*/
-#endif
-
 /*
  * Internal Definitions
  *

include/configs/MPC8568MDS.h

@@ -480,13 +480,6 @@ extern unsigned long get_clock_freq(void);
  */
 #define CFG_BOOTMAPSZ	(8 << 20) 	/* Initial Memory map for Linux*/
 
-/* Cache Configuration */
-#define CFG_DCACHE_SIZE	32768
-#define CFG_CACHELINE_SIZE	32
-#if defined(CONFIG_CMD_KGDB)
-#define CFG_CACHELINE_SHIFT	5	/*log base 2 of the above value*/
-#endif
-
 /*
  * Internal Definitions
  *

include/configs/MPC8641HPCN.h

@@ -573,13 +573,6 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
  */
 #define CFG_BOOTMAPSZ	(8 << 20)	/* Initial Memory map for Linux*/
 
-/* Cache Configuration */
-#define CFG_DCACHE_SIZE		32768
-#define CFG_CACHELINE_SIZE	32
-#if defined(CONFIG_CMD_KGDB)
-    #define CFG_CACHELINE_SHIFT	5	/*log base 2 of the above value*/
-#endif
-
 /*
  * Internal Definitions
  *

include/configs/PM854.h

@@ -366,13 +366,6 @@
  */
 #define CFG_BOOTMAPSZ	(8 << 20)	/* Initial Memory map for Linux*/
 
-/* Cache Configuration */
-#define CFG_DCACHE_SIZE		32768
-#define CFG_CACHELINE_SIZE	32
-#if defined(CONFIG_CMD_KGDB)
-#define CFG_CACHELINE_SHIFT	5	/*log base 2 of the above value*/
-#endif
-
 /*
  * Internal Definitions
  *

include/configs/PM856.h

@@ -365,13 +365,6 @@
  */
 #define CFG_BOOTMAPSZ	(8 << 20)	/* Initial Memory map for Linux*/
 
-/* Cache Configuration */
-#define CFG_DCACHE_SIZE		32768
-#define CFG_CACHELINE_SIZE	32
-#if defined(CONFIG_CMD_KGDB)
-#define CFG_CACHELINE_SHIFT	5	/*log base 2 of the above value*/
-#endif
-
 /*
  * Internal Definitions
  *

include/configs/SBC8540.h

@@ -395,13 +395,6 @@
  */
 #define CFG_BOOTMAPSZ		(8 << 20) /* Initial Memory map for Linux */
 
-/* Cache Configuration */
-#define CFG_DCACHE_SIZE		32768
-#define CFG_CACHELINE_SIZE	32
-#if defined(CONFIG_CMD_KGDB)
-  #define CFG_CACHELINE_SHIFT	5	/* log base 2 of the above value */
-#endif
-
 /*
  * Internal Definitions
  *

include/configs/TQM85xx.h

@@ -417,13 +417,6 @@
  */
 #define CFG_BOOTMAPSZ	(8 << 20)	/* Initial Memory map for Linux	*/
 
-/* Cache Configuration */
-#define CFG_DCACHE_SIZE		32768
-#define CFG_CACHELINE_SIZE	32
-#if defined(CONFIG_CMD_KGDB)
-#define CFG_CACHELINE_SHIFT	5	/*log base 2 of the above value	*/
-#endif
-
 /*
  * Internal Definitions
  *

include/configs/sbc8560.h

@@ -377,13 +377,6 @@
  */
 #define CFG_BOOTMAPSZ		(8 << 20) /* Initial Memory map for Linux */
 
-/* Cache Configuration */
-#define CFG_DCACHE_SIZE		32768
-#define CFG_CACHELINE_SIZE	32
-#if defined(CONFIG_CMD_KGDB)
-  #define CFG_CACHELINE_SHIFT	5	/* log base 2 of the above value */
-#endif
-
 /*
  * Internal Definitions
  *

include/configs/stxgp3.h

@@ -357,13 +357,6 @@
  */
 #define CFG_BOOTMAPSZ		(8 << 20) /* Initial Memory map for Linux */
 
-/* Cache Configuration */
-#define CFG_DCACHE_SIZE		32768
-#define CFG_CACHELINE_SIZE	32
-#if defined(CONFIG_CMD_KGDB)
-#define CFG_CACHELINE_SHIFT	5	/* log base 2 of the above value */
-#endif
-
 /*
  * Internal Definitions
  *

include/configs/stxssa.h

@@ -391,13 +391,6 @@
  */
 #define CFG_BOOTMAPSZ		(8 << 20) /* Initial Memory map for Linux */
 
-/* Cache Configuration */
-#define CFG_DCACHE_SIZE		32768
-#define CFG_CACHELINE_SIZE	32
-#if defined(CONFIG_CMD_KGDB)
-#define CFG_CACHELINE_SHIFT	5	/* log base 2 of the above value */
-#endif
-
 /*
  * Internal Definitions
  *