diff options
Diffstat (limited to 'arch/mips/ddb5xxx/common/nile4.c')
| -rw-r--r-- | arch/mips/ddb5xxx/common/nile4.c | 130 |
1 files changed, 0 insertions, 130 deletions
diff --git a/arch/mips/ddb5xxx/common/nile4.c b/arch/mips/ddb5xxx/common/nile4.c deleted file mode 100644 index 7ec7d903ba97..000000000000 --- a/arch/mips/ddb5xxx/common/nile4.c +++ /dev/null @@ -1,130 +0,0 @@ -/* - * - * Copyright 2001 MontaVista Software Inc. - * Author: jsun@mvista.com or jsun@junsun.net - * - * arch/mips/ddb5xxx/common/nile4.c - * misc low-level routines for vrc-5xxx controllers. - * - * derived from original code by Geert Uytterhoeven <geert@sonycom.com> - * - * 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. - */ -#include <linux/types.h> -#include <linux/kernel.h> - -#include <asm/ddb5xxx/ddb5xxx.h> - -u32 -ddb_calc_pdar(u32 phys, u32 size, int width, - int on_memory_bus, int pci_visible) -{ - u32 maskbits; - u32 widthbits; - - switch (size) { -#if 0 /* We don't support 4 GB yet */ - case 0x100000000: /* 4 GB */ - maskbits = 4; - break; -#endif - case 0x80000000: /* 2 GB */ - maskbits = 5; - break; - case 0x40000000: /* 1 GB */ - maskbits = 6; - break; - case 0x20000000: /* 512 MB */ - maskbits = 7; - break; - case 0x10000000: /* 256 MB */ - maskbits = 8; - break; - case 0x08000000: /* 128 MB */ - maskbits = 9; - break; - case 0x04000000: /* 64 MB */ - maskbits = 10; - break; - case 0x02000000: /* 32 MB */ - maskbits = 11; - break; - case 0x01000000: /* 16 MB */ - maskbits = 12; - break; - case 0x00800000: /* 8 MB */ - maskbits = 13; - break; - case 0x00400000: /* 4 MB */ - maskbits = 14; - break; - case 0x00200000: /* 2 MB */ - maskbits = 15; - break; - case 0: /* OFF */ - maskbits = 0; - break; - default: - panic("nile4_set_pdar: unsupported size %p", (void *) size); - } - switch (width) { - case 8: - widthbits = 0; - break; - case 16: - widthbits = 1; - break; - case 32: - widthbits = 2; - break; - case 64: - widthbits = 3; - break; - default: - panic("nile4_set_pdar: unsupported width %d", width); - } - - return maskbits | (on_memory_bus ? 0x10 : 0) | - (pci_visible ? 0x20 : 0) | (widthbits << 6) | - (phys & 0xffe00000); -} - -void -ddb_set_pdar(u32 pdar, u32 phys, u32 size, int width, - int on_memory_bus, int pci_visible) -{ - u32 temp= ddb_calc_pdar(phys, size, width, on_memory_bus, pci_visible); - ddb_out32(pdar, temp); - ddb_out32(pdar + 4, 0); - - /* - * When programming a PDAR, the register should be read immediately - * after writing it. This ensures that address decoders are properly - * configured. - * [jsun] is this really necessary? - */ - ddb_in32(pdar); - ddb_in32(pdar + 4); -} - -/* - * routines that mess with PCIINITx registers - */ - -void ddb_set_pmr(u32 pmr, u32 type, u32 addr, u32 options) -{ - switch (type) { - case DDB_PCICMD_IACK: /* PCI Interrupt Acknowledge */ - case DDB_PCICMD_IO: /* PCI I/O Space */ - case DDB_PCICMD_MEM: /* PCI Memory Space */ - case DDB_PCICMD_CFG: /* PCI Configuration Space */ - break; - default: - panic("nile4_set_pmr: invalid type %d", type); - } - ddb_out32(pmr, (type << 1) | (addr & 0xffe00000) | options ); - ddb_out32(pmr + 4, 0); -} |