summaryrefslogtreecommitdiff
path: root/arch/ppc/boot/simple/mpc10x_memory.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/ppc/boot/simple/mpc10x_memory.c')
-rw-r--r--arch/ppc/boot/simple/mpc10x_memory.c109
1 files changed, 0 insertions, 109 deletions
diff --git a/arch/ppc/boot/simple/mpc10x_memory.c b/arch/ppc/boot/simple/mpc10x_memory.c
deleted file mode 100644
index 8da8f576031d..000000000000
--- a/arch/ppc/boot/simple/mpc10x_memory.c
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * A routine to find out how much memory the machine has.
- *
- * Based on:
- * arch/ppc/kernel/mpc10x_common.c
- *
- * Author: Mark A. Greer
- * mgreer@mvista.com
- *
- * 2001-2002 (c) MontaVista, Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-
-#include <linux/pci.h>
-#include <asm/types.h>
-#include <asm/io.h>
-#include "mpc10x.h"
-
-/*
- * *** WARNING - A BAT MUST be set to access the PCI config addr/data regs ***
- */
-
-/*
- * PCI config space macros, similar to indirect_xxx and early_xxx macros.
- * We assume bus 0.
- */
-#define MPC10X_CFG_read(val, addr, type, op) *val = op((type)(addr))
-#define MPC10X_CFG_write(val, addr, type, op) op((type *)(addr), (val))
-
-#define MPC10X_PCI_OP(rw, size, type, op, mask) \
-static void \
-mpc10x_##rw##_config_##size(unsigned int __iomem *cfg_addr, \
- unsigned int *cfg_data, int devfn, int offset, \
- type val) \
-{ \
- out_be32(cfg_addr, \
- ((offset & 0xfc) << 24) | (devfn << 16) \
- | (0 << 8) | 0x80); \
- MPC10X_CFG_##rw(val, cfg_data + (offset & mask), type, op); \
- return; \
-}
-
-MPC10X_PCI_OP(read, byte, u8 *, in_8, 3)
-MPC10X_PCI_OP(read, dword, u32 *, in_le32, 0)
-
-/*
- * Read the memory controller registers to determine the amount of memory in
- * the system. This assumes that the firmware has correctly set up the memory
- * controller registers. On CONFIG_PPC_PREP, we know we are being called
- * under a PReP memory map. On all other machines, we assume we are under
- * a CHRP memory map. Further, on CONFIG_PPC_PREP we must rename
- * this function.
- */
-#ifdef CONFIG_PPC_PREP
-#define get_mem_size mpc10x_get_mem_size
-#endif
-unsigned long
-get_mem_size(void)
-{
- unsigned int *config_addr, *config_data, val;
- unsigned long start, end, total, offset;
- int i;
- unsigned char bank_enables;
-
-#ifdef CONFIG_PPC_PREP
- config_addr = (unsigned int *)MPC10X_MAPA_CNFG_ADDR;
- config_data = (unsigned int *)MPC10X_MAPA_CNFG_DATA;
-#else
- config_addr = (unsigned int *)MPC10X_MAPB_CNFG_ADDR;
- config_data = (unsigned int *)MPC10X_MAPB_CNFG_DATA;
-#endif
-
- mpc10x_read_config_byte(config_addr, config_data, PCI_DEVFN(0,0),
- MPC10X_MCTLR_MEM_BANK_ENABLES, &bank_enables);
-
- total = 0;
-
- for (i = 0; i < 8; i++) {
- if (bank_enables & (1 << i)) {
- offset = MPC10X_MCTLR_MEM_START_1 + ((i > 3) ? 4 : 0);
- mpc10x_read_config_dword(config_addr, config_data,
- PCI_DEVFN(0,0), offset, &val);
- start = (val >> ((i & 3) << 3)) & 0xff;
-
- offset = MPC10X_MCTLR_EXT_MEM_START_1 + ((i>3) ? 4 : 0);
- mpc10x_read_config_dword(config_addr, config_data,
- PCI_DEVFN(0,0), offset, &val);
- val = (val >> ((i & 3) << 3)) & 0x03;
- start = (val << 28) | (start << 20);
-
- offset = MPC10X_MCTLR_MEM_END_1 + ((i > 3) ? 4 : 0);
- mpc10x_read_config_dword(config_addr, config_data,
- PCI_DEVFN(0,0), offset, &val);
- end = (val >> ((i & 3) << 3)) & 0xff;
-
- offset = MPC10X_MCTLR_EXT_MEM_END_1 + ((i > 3) ? 4 : 0);
- mpc10x_read_config_dword(config_addr, config_data,
- PCI_DEVFN(0,0), offset, &val);
- val = (val >> ((i & 3) << 3)) & 0x03;
- end = (val << 28) | (end << 20) | 0xfffff;
-
- total += (end - start + 1);
- }
- }
-
- return total;
-}