diff options
Diffstat (limited to 'arch/ppc/boot/simple/mpc10x_memory.c')
-rw-r--r-- | arch/ppc/boot/simple/mpc10x_memory.c | 109 |
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; -} |