diff options
author | Paul Mackerras <paulus@samba.org> | 2008-06-09 14:01:46 +1000 |
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committer | Paul Mackerras <paulus@samba.org> | 2008-06-10 21:40:22 +1000 |
commit | 917f0af9e5a9ceecf9e72537fabb501254ba321d (patch) | |
tree | 1ef207755c6d83ce4af93ef2b5e4645eebd65886 /arch/ppc/syslib/harrier.c | |
parent | 0f3d6bcd391b058c619fc30e8022e8a29fbf4bef (diff) |
powerpc: Remove arch/ppc and include/asm-ppc
All the maintained platforms are now in arch/powerpc, so the old
arch/ppc stuff can now go away.
Acked-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Becky Bruce <becky.bruce@freescale.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Jochen Friedrich <jochen@scram.de>
Acked-by: John Linn <john.linn@xilinx.com>
Acked-by: Jon Loeliger <jdl@freescale.com>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Acked-by: Scott Wood <scottwood@freescale.com>
Acked-by: Sean MacLennan <smaclennan@pikatech.com>
Acked-by: Segher Boessenkool <segher@kernel.crashing.org>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/ppc/syslib/harrier.c')
-rw-r--r-- | arch/ppc/syslib/harrier.c | 300 |
1 files changed, 0 insertions, 300 deletions
diff --git a/arch/ppc/syslib/harrier.c b/arch/ppc/syslib/harrier.c deleted file mode 100644 index 45b797b3a33..00000000000 --- a/arch/ppc/syslib/harrier.c +++ /dev/null @@ -1,300 +0,0 @@ -/* - * Motorola MCG Harrier northbridge/memory controller support - * - * Author: Dale Farnsworth - * dale.farnsworth@mvista.com - * - * 2001 (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/kernel.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/harrier_defs.h> - -#include <asm/byteorder.h> -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/pci.h> -#include <asm/pci-bridge.h> -#include <asm/open_pic.h> -#include <asm/harrier.h> - -/* define defaults for inbound windows */ -#define HARRIER_ITAT_DEFAULT (HARRIER_ITAT_ENA | \ - HARRIER_ITAT_MEM | \ - HARRIER_ITAT_WPE | \ - HARRIER_ITAT_GBL) - -#define HARRIER_MPAT_DEFAULT (HARRIER_ITAT_ENA | \ - HARRIER_ITAT_MEM | \ - HARRIER_ITAT_WPE | \ - HARRIER_ITAT_GBL) - -/* - * Initialize the inbound window size on a non-monarch harrier. - */ -void __init harrier_setup_nonmonarch(uint ppc_reg_base, uint in0_size) -{ - u16 temps; - u32 temp; - - if (in0_size > HARRIER_ITSZ_2GB) { - printk - ("harrier_setup_nonmonarch: Invalid window size code %d\n", - in0_size); - return; - } - - /* Clear the PCI memory enable bit. If we don't, then when the - * inbound windows are enabled below, the corresponding BARs will be - * "live" and start answering to PCI memory reads from their default - * addresses (0x0), which overlap with system RAM. - */ - temps = in_le16((u16 *) (ppc_reg_base + - HARRIER_XCSR_CONFIG(PCI_COMMAND))); - temps &= ~(PCI_COMMAND_MEMORY); - out_le16((u16 *) (ppc_reg_base + HARRIER_XCSR_CONFIG(PCI_COMMAND)), - temps); - - /* Setup a non-prefetchable inbound window */ - out_le32((u32 *) (ppc_reg_base + - HARRIER_XCSR_CONFIG(HARRIER_ITSZ0_OFF)), in0_size); - - temp = in_le32((u32 *) (ppc_reg_base + - HARRIER_XCSR_CONFIG(HARRIER_ITAT0_OFF))); - temp &= ~HARRIER_ITAT_PRE; - temp |= HARRIER_ITAT_DEFAULT; - out_le32((u32 *) (ppc_reg_base + - HARRIER_XCSR_CONFIG(HARRIER_ITAT0_OFF)), temp); - - /* Enable the message passing block */ - temp = in_le32((u32 *) (ppc_reg_base + - HARRIER_XCSR_CONFIG(HARRIER_MPAT_OFF))); - temp |= HARRIER_MPAT_DEFAULT; - out_le32((u32 *) (ppc_reg_base + - HARRIER_XCSR_CONFIG(HARRIER_MPAT_OFF)), temp); -} - -void __init harrier_release_eready(uint ppc_reg_base) -{ - ulong temp; - - /* - * Set EREADY to allow the line to be pulled up after everyone is - * ready. - */ - temp = in_be32((uint *) (ppc_reg_base + HARRIER_MISC_CSR_OFF)); - temp |= HARRIER_EREADY; - out_be32((uint *) (ppc_reg_base + HARRIER_MISC_CSR_OFF), temp); -} - -void __init harrier_wait_eready(uint ppc_reg_base) -{ - ulong temp; - - /* - * Poll the ERDYS line until it goes high to indicate that all - * non-monarch PrPMCs are ready for bus enumeration (or that there are - * no PrPMCs present). - */ - - /* FIXME: Add a timeout of some kind to prevent endless waits. */ - do { - - temp = in_be32((uint *) (ppc_reg_base + HARRIER_MISC_CSR_OFF)); - - } while (!(temp & HARRIER_ERDYS)); -} - -/* - * Initialize the Motorola MCG Harrier host bridge. - * - * This means setting up the PPC bus to PCI memory and I/O space mappings, - * setting the PCI memory space address of the MPIC (mapped straight - * through), and ioremap'ing the mpic registers. - * 'OpenPIC_Addr' will be set correctly by this routine. - * This routine will not change the PCI_CONFIG_ADDR or PCI_CONFIG_DATA - * addresses and assumes that the mapping of PCI memory space back to system - * memory is set up correctly by PPCBug. - */ -int __init -harrier_init(struct pci_controller *hose, - uint ppc_reg_base, - ulong processor_pci_mem_start, - ulong processor_pci_mem_end, - ulong processor_pci_io_start, - ulong processor_pci_io_end, ulong processor_mpic_base) -{ - uint addr, offset; - - /* - * Some sanity checks... - */ - if (((processor_pci_mem_start & 0xffff0000) != processor_pci_mem_start) - || ((processor_pci_io_start & 0xffff0000) != - processor_pci_io_start)) { - printk("harrier_init: %s\n", - "PPC to PCI mappings must start on 64 KB boundaries"); - return -1; - } - - if (((processor_pci_mem_end & 0x0000ffff) != 0x0000ffff) || - ((processor_pci_io_end & 0x0000ffff) != 0x0000ffff)) { - printk("harrier_init: PPC to PCI mappings %s\n", - "must end just before a 64 KB boundaries"); - return -1; - } - - if (((processor_pci_mem_end - processor_pci_mem_start) != - (hose->mem_space.end - hose->mem_space.start)) || - ((processor_pci_io_end - processor_pci_io_start) != - (hose->io_space.end - hose->io_space.start))) { - printk("harrier_init: %s\n", - "PPC and PCI memory or I/O space sizes don't match"); - return -1; - } - - if ((processor_mpic_base & 0xfffc0000) != processor_mpic_base) { - printk("harrier_init: %s\n", - "MPIC address must start on 256 KB boundary"); - return -1; - } - - if ((pci_dram_offset & 0xffff0000) != pci_dram_offset) { - printk("harrier_init: %s\n", - "pci_dram_offset must be multiple of 64 KB"); - return -1; - } - - /* - * Program the OTAD/OTOF registers to set up the PCI Mem & I/O - * space mappings. These are the mappings going from the processor to - * the PCI bus. - * - * Note: Don't need to 'AND' start/end addresses with 0xffff0000 - * because sanity check above ensures that they are properly - * aligned. - */ - - /* Set up PPC->PCI Mem mapping */ - addr = processor_pci_mem_start | (processor_pci_mem_end >> 16); -#ifdef CONFIG_HARRIER_STORE_GATHERING - offset = (hose->mem_space.start - processor_pci_mem_start) | 0x9a; -#else - offset = (hose->mem_space.start - processor_pci_mem_start) | 0x92; -#endif - out_be32((uint *) (ppc_reg_base + HARRIER_OTAD0_OFF), addr); - out_be32((uint *) (ppc_reg_base + HARRIER_OTOF0_OFF), offset); - - /* Set up PPC->PCI I/O mapping -- Contiguous I/O space */ - addr = processor_pci_io_start | (processor_pci_io_end >> 16); - offset = (hose->io_space.start - processor_pci_io_start) | 0x80; - out_be32((uint *) (ppc_reg_base + HARRIER_OTAD1_OFF), addr); - out_be32((uint *) (ppc_reg_base + HARRIER_OTOF1_OFF), offset); - - /* Enable MPIC */ - OpenPIC_Addr = (void *)processor_mpic_base; - addr = (processor_mpic_base >> 16) | 1; - out_be16((ushort *) (ppc_reg_base + HARRIER_MBAR_OFF), addr); - out_8((u_char *) (ppc_reg_base + HARRIER_MPIC_CSR_OFF), - HARRIER_MPIC_OPI_ENABLE); - - return 0; -} - -/* - * Find the amount of RAM present. - * This assumes that PPCBug has initialized the memory controller (SMC) - * on the Harrier correctly (i.e., it does no sanity checking). - * It also assumes that the memory base registers are set to configure the - * memory as contiguous starting with "RAM A BASE", "RAM B BASE", etc. - * however, RAM base registers can be skipped (e.g. A, B, C are set, - * D is skipped but E is set is okay). - */ -#define MB (1024*1024UL) - -static uint harrier_size_table[] __initdata = { - 0 * MB, /* 0 ==> 0 MB */ - 32 * MB, /* 1 ==> 32 MB */ - 64 * MB, /* 2 ==> 64 MB */ - 64 * MB, /* 3 ==> 64 MB */ - 128 * MB, /* 4 ==> 128 MB */ - 128 * MB, /* 5 ==> 128 MB */ - 128 * MB, /* 6 ==> 128 MB */ - 256 * MB, /* 7 ==> 256 MB */ - 256 * MB, /* 8 ==> 256 MB */ - 256 * MB, /* 9 ==> 256 MB */ - 512 * MB, /* a ==> 512 MB */ - 512 * MB, /* b ==> 512 MB */ - 512 * MB, /* c ==> 512 MB */ - 1024 * MB, /* d ==> 1024 MB */ - 1024 * MB, /* e ==> 1024 MB */ - 2048 * MB, /* f ==> 2048 MB */ -}; - -/* - * *** WARNING: You MUST have a BAT set up to map in the XCSR regs *** - * - * Read the memory controller's registers to determine the amount of system - * memory. Assumes that the memory controller registers are already mapped - * into virtual memory--too early to use ioremap(). - */ -unsigned long __init harrier_get_mem_size(uint xcsr_base) -{ - ulong last_addr; - int i; - uint vend_dev_id; - uint *size_table; - uint val; - uint *csrp; - uint size; - int size_table_entries; - - vend_dev_id = in_be32((uint *) xcsr_base + PCI_VENDOR_ID); - - if (((vend_dev_id & 0xffff0000) >> 16) != PCI_VENDOR_ID_MOTOROLA) { - printk("harrier_get_mem_size: %s (0x%x)\n", - "Not a Motorola Memory Controller", vend_dev_id); - return 0; - } - - vend_dev_id &= 0x0000ffff; - - if (vend_dev_id == PCI_DEVICE_ID_MOTOROLA_HARRIER) { - size_table = harrier_size_table; - size_table_entries = sizeof(harrier_size_table) / - sizeof(harrier_size_table[0]); - } else { - printk("harrier_get_mem_size: %s (0x%x)\n", - "Not a Harrier", vend_dev_id); - return 0; - } - - last_addr = 0; - - csrp = (uint *) (xcsr_base + HARRIER_SDBA_OFF); - for (i = 0; i < 8; i++) { - val = in_be32(csrp++); - - if (val & 0x100) { /* If enabled */ - size = val >> HARRIER_SDB_SIZE_SHIFT; - size &= HARRIER_SDB_SIZE_MASK; - if (size >= size_table_entries) { - break; /* Register not set correctly */ - } - size = size_table[size]; - - val &= ~(size - 1); - val += size; - - if (val > last_addr) { - last_addr = val; - } - } - } - - return last_addr; -} |