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Diffstat (limited to 'board/eltec/bab7xx/l2cache.c')
-rw-r--r--board/eltec/bab7xx/l2cache.c159
1 files changed, 0 insertions, 159 deletions
diff --git a/board/eltec/bab7xx/l2cache.c b/board/eltec/bab7xx/l2cache.c
deleted file mode 100644
index 787704f..0000000
--- a/board/eltec/bab7xx/l2cache.c
+++ /dev/null
@@ -1,159 +0,0 @@
-/*
- * (C) Copyright 2002 ELTEC Elektronik AG
- * Frank Gottschling <fgottschling@eltec.de>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-
-#if defined(CONFIG_SYS_L2_BAB7xx)
-
-#include <pci.h>
-#include <mpc106.h>
-#include <asm/processor.h>
-
-/* defines L2CR register for MPC750 */
-
-#define L2CR_E 0x80000000
-#define L2CR_256K 0x10000000
-#define L2CR_512K 0x20000000
-#define L2CR_1024K 0x30000000
-#define L2CR_I 0x00200000
-#define L2CR_SL 0x00008000
-#define L2CR_IP 0x00000001
-
-/*----------------------------------------------------------------------------*/
-
-static int dummy (int dummy)
-{
- return (dummy+1);
-}
-
-/*----------------------------------------------------------------------------*/
-
-int l2_cache_enable (int l2control)
-{
- if (l2control) /* BAB750 */
- {
- mtspr(SPRN_L2CR, l2control);
- mtspr(SPRN_L2CR, (l2control | L2CR_I));
- while (mfspr(SPRN_L2CR) & L2CR_IP)
- ;
- mtspr(SPRN_L2CR, (l2control | L2CR_E));
- return (0);
- }
- else /* BAB740 */
- {
- int picr1, picr2, mask;
- int picr2CacheSize, cacheSize;
- int *d;
- int devbusfn;
- u32 reg32;
-
- devbusfn = pci_find_device(PCI_VENDOR_ID_MOTOROLA,
- PCI_DEVICE_ID_MOTOROLA_MPC106, 0);
- if (devbusfn == -1)
- return (-1);
-
- pci_read_config_dword (devbusfn, PCI_PICR2, &reg32);
- reg32 &= ~PICR2_L2_EN;
- pci_write_config_dword (devbusfn, PCI_PICR2, reg32);
-
- /* cache size */
- if (*(volatile unsigned char *) (CONFIG_SYS_ISA_IO + 0x220) & 0x04)
- {
- /* cache size is 512 KB */
- picr2CacheSize = PICR2_L2_SIZE_512K;
- cacheSize = 0x80000;
- }
- else
- {
- /* cache size is 256 KB */
- picr2CacheSize = PICR2_L2_SIZE_256K;
- cacheSize = 0x40000;
- }
-
- /* setup PICR1 */
- mask =
- ~(PICR1_CF_BREAD_WS(1) |
- PICR1_CF_BREAD_WS(2) |
- PICR1_CF_CBA(0xff) |
- PICR1_CF_CACHE_1G |
- PICR1_CF_DPARK |
- PICR1_CF_APARK |
- PICR1_CF_L2_CACHE_MASK);
-
- picr1 =
- (PICR1_CF_CBA(0x3f) |
- PICR1_CF_CACHE_1G |
- PICR1_CF_APARK |
- PICR1_CF_DPARK |
- PICR1_CF_L2_COPY_BACK); /* PICR1_CF_L2_WRITE_THROUGH */
-
- pci_read_config_dword (devbusfn, PCI_PICR1, &reg32);
- reg32 &= mask;
- reg32 |= picr1;
- pci_write_config_dword (devbusfn, PCI_PICR1, reg32);
-
- /*
- * invalidate all L2 cache
- */
- picr2 =
- (PICR2_CF_INV_MODE |
- PICR2_CF_HIT_HIGH |
- PICR2_CF_MOD_HIGH |
- PICR2_CF_L2_HIT_DELAY(1) |
- PICR2_CF_APHASE_WS(1) |
- picr2CacheSize);
-
- pci_write_config_dword (devbusfn, PCI_PICR2, picr2);
-
- /*
- * dummy transactions
- */
- for (d=0; d<(int *)(2*cacheSize); d++)
- dummy(*d);
-
- pci_write_config_dword (devbusfn, PCI_PICR2,
- (picr2 | PICR2_CF_FLUSH_L2));
-
- /* setup PICR2 */
- picr2 =
- (PICR2_CF_FAST_CASTOUT |
- PICR2_CF_WDATA |
- PICR2_CF_ADDR_ONLY_DISABLE |
- PICR2_CF_HIT_HIGH |
- PICR2_CF_MOD_HIGH |
- PICR2_L2_UPDATE_EN |
- PICR2_L2_EN |
- PICR2_CF_APHASE_WS(1) |
- PICR2_CF_DATA_RAM_PBURST |
- PICR2_CF_L2_HIT_DELAY(1) |
- PICR2_CF_SNOOP_WS(2) |
- picr2CacheSize);
-
- pci_write_config_dword (devbusfn, PCI_PICR2, picr2);
- }
- return (0);
-}
-
-/*----------------------------------------------------------------------------*/
-
-#endif /* (CONFIG_SYS_L2_BAB7xx) */