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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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13e886c3b4
The UARTs on the MPC824x are unique devices and really shouldn't be thought of as a DUART. In addition, if both UARTs are in use we need to configure the part to enable the 2nd UART since the pins for the UARTs are multiplexed. Adds support to run the 824x Sandpoint with both UARTs if desired. Signed-off-by: Matt McClintock <msm@freescale.com> Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
182 lines
6.9 KiB
C
182 lines
6.9 KiB
C
/*
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* arch/ppc/kernel/mpc10x.h
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*
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* Common routines for the Motorola SPS MPC106/8240/107 Host bridge/Mem
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* ctlr/EPIC/etc.
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*
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* Author: Mark A. Greer
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* mgreer@mvista.com
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*
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* 2001 (c) MontaVista, Software, Inc. This file is licensed under
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* the terms of the GNU General Public License version 2. This program
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* is licensed "as is" without any warranty of any kind, whether express
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* or implied.
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*/
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#ifndef __PPC_KERNEL_MPC10X_H
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#define __PPC_KERNEL_MPC10X_H
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#include <linux/pci_ids.h>
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#include <asm/pci-bridge.h>
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/*
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* The values here don't completely map everything but should work in most
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* cases.
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*
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* MAP A (PReP Map)
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* Processor: 0x80000000 - 0x807fffff -> PCI I/O: 0x00000000 - 0x007fffff
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* Processor: 0xc0000000 - 0xdfffffff -> PCI MEM: 0x00000000 - 0x1fffffff
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* PCI MEM: 0x80000000 -> Processor System Memory: 0x00000000
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* EUMB mapped to: ioremap_base - 0x00100000 (ioremap_base - 1 MB)
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*
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* MAP B (CHRP Map)
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* Processor: 0xfe000000 - 0xfebfffff -> PCI I/O: 0x00000000 - 0x00bfffff
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* Processor: 0x80000000 - 0xbfffffff -> PCI MEM: 0x80000000 - 0xbfffffff
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* PCI MEM: 0x00000000 -> Processor System Memory: 0x00000000
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* EUMB mapped to: ioremap_base - 0x00100000 (ioremap_base - 1 MB)
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*/
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/*
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* Define the vendor/device IDs for the various bridges--should be added to
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* <linux/pci_ids.h>
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*/
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#define MPC10X_BRIDGE_106 ((PCI_DEVICE_ID_MOTOROLA_MPC106 << 16) | \
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PCI_VENDOR_ID_MOTOROLA)
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#define MPC10X_BRIDGE_8240 ((0x0003 << 16) | PCI_VENDOR_ID_MOTOROLA)
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#define MPC10X_BRIDGE_107 ((0x0004 << 16) | PCI_VENDOR_ID_MOTOROLA)
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#define MPC10X_BRIDGE_8245 ((0x0006 << 16) | PCI_VENDOR_ID_MOTOROLA)
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/* Define the type of map to use */
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#define MPC10X_MEM_MAP_A 1
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#define MPC10X_MEM_MAP_B 2
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/* Map A (PReP Map) Defines */
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#define MPC10X_MAPA_CNFG_ADDR 0x80000cf8
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#define MPC10X_MAPA_CNFG_DATA 0x80000cfc
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#define MPC10X_MAPA_ISA_IO_BASE 0x80000000
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#define MPC10X_MAPA_ISA_MEM_BASE 0xc0000000
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#define MPC10X_MAPA_DRAM_OFFSET 0x80000000
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#define MPC10X_MAPA_PCI_INTACK_ADDR 0xbffffff0
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#define MPC10X_MAPA_PCI_IO_START 0x00000000
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#define MPC10X_MAPA_PCI_IO_END (0x00800000 - 1)
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#define MPC10X_MAPA_PCI_MEM_START 0x00000000
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#define MPC10X_MAPA_PCI_MEM_END (0x20000000 - 1)
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#define MPC10X_MAPA_PCI_MEM_OFFSET (MPC10X_MAPA_ISA_MEM_BASE - \
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MPC10X_MAPA_PCI_MEM_START)
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/* Map B (CHRP Map) Defines */
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#define MPC10X_MAPB_CNFG_ADDR 0xfec00000
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#define MPC10X_MAPB_CNFG_DATA 0xfee00000
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#define MPC10X_MAPB_ISA_IO_BASE 0xfe000000
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#define MPC10X_MAPB_ISA_MEM_BASE 0x80000000
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#define MPC10X_MAPB_DRAM_OFFSET 0x00000000
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#define MPC10X_MAPB_PCI_INTACK_ADDR 0xfef00000
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#define MPC10X_MAPB_PCI_IO_START 0x00000000
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#define MPC10X_MAPB_PCI_IO_END (0x00c00000 - 1)
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#define MPC10X_MAPB_PCI_MEM_START 0x80000000
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#define MPC10X_MAPB_PCI_MEM_END (0xc0000000 - 1)
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#define MPC10X_MAPB_PCI_MEM_OFFSET (MPC10X_MAPB_ISA_MEM_BASE - \
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MPC10X_MAPB_PCI_MEM_START)
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/* Set hose members to values appropriate for the mem map used */
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#define MPC10X_SETUP_HOSE(hose, map) { \
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(hose)->pci_mem_offset = MPC10X_MAP##map##_PCI_MEM_OFFSET; \
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(hose)->io_space.start = MPC10X_MAP##map##_PCI_IO_START; \
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(hose)->io_space.end = MPC10X_MAP##map##_PCI_IO_END; \
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(hose)->mem_space.start = MPC10X_MAP##map##_PCI_MEM_START; \
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(hose)->mem_space.end = MPC10X_MAP##map##_PCI_MEM_END; \
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(hose)->io_base_virt = (void *)MPC10X_MAP##map##_ISA_IO_BASE; \
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}
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/* Miscellaneous Configuration register offsets */
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#define MPC10X_CFG_PIR_REG 0x09
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#define MPC10X_CFG_PIR_HOST_BRIDGE 0x00
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#define MPC10X_CFG_PIR_AGENT 0x01
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#define MPC10X_CFG_EUMBBAR 0x78
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#define MPC10X_CFG_PICR1_REG 0xa8
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#define MPC10X_CFG_PICR1_ADDR_MAP_MASK 0x00010000
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#define MPC10X_CFG_PICR1_ADDR_MAP_A 0x00010000
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#define MPC10X_CFG_PICR1_ADDR_MAP_B 0x00000000
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#define MPC10X_CFG_PICR1_SPEC_PCI_RD 0x00000004
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#define MPC10X_CFG_PICR1_ST_GATH_EN 0x00000040
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#define MPC10X_CFG_PICR2_REG 0xac
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#define MPC10X_CFG_PICR2_COPYBACK_OPT 0x00000001
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#define MPC10X_CFG_MAPB_OPTIONS_REG 0xe0
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#define MPC10X_CFG_MAPB_OPTIONS_CFAE 0x80 /* CPU_FD_ALIAS_EN */
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#define MPC10X_CFG_MAPB_OPTIONS_PFAE 0x40 /* PCI_FD_ALIAS_EN */
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#define MPC10X_CFG_MAPB_OPTIONS_DR 0x20 /* DLL_RESET */
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#define MPC10X_CFG_MAPB_OPTIONS_PCICH 0x08 /* PCI_COMPATIBILITY_HOLE */
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#define MPC10X_CFG_MAPB_OPTIONS_PROCCH 0x04 /* PROC_COMPATIBILITY_HOLE */
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/* Define offsets for the memory controller registers in the config space */
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#define MPC10X_MCTLR_MEM_START_1 0x80 /* Banks 0-3 */
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#define MPC10X_MCTLR_MEM_START_2 0x84 /* Banks 4-7 */
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#define MPC10X_MCTLR_EXT_MEM_START_1 0x88 /* Banks 0-3 */
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#define MPC10X_MCTLR_EXT_MEM_START_2 0x8c /* Banks 4-7 */
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#define MPC10X_MCTLR_MEM_END_1 0x90 /* Banks 0-3 */
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#define MPC10X_MCTLR_MEM_END_2 0x94 /* Banks 4-7 */
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#define MPC10X_MCTLR_EXT_MEM_END_1 0x98 /* Banks 0-3 */
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#define MPC10X_MCTLR_EXT_MEM_END_2 0x9c /* Banks 4-7 */
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#define MPC10X_MCTLR_MEM_BANK_ENABLES 0xa0
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/* Define some offset in the EUMB */
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#define MPC10X_EUMB_SIZE 0x00100000 /* Total EUMB size (1MB) */
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#define MPC10X_EUMB_MU_OFFSET 0x00000000 /* Msg Unit reg offset */
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#define MPC10X_EUMB_MU_SIZE 0x00001000 /* Msg Unit reg size */
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#define MPC10X_EUMB_DMA_OFFSET 0x00001000 /* DMA Unit reg offset */
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#define MPC10X_EUMB_DMA_SIZE 0x00001000 /* DMA Unit reg size */
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#define MPC10X_EUMB_ATU_OFFSET 0x00002000 /* Addr xlate reg offset */
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#define MPC10X_EUMB_ATU_SIZE 0x00001000 /* Addr xlate reg size */
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#define MPC10X_EUMB_I2C_OFFSET 0x00003000 /* I2C Unit reg offset */
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#define MPC10X_EUMB_I2C_SIZE 0x00001000 /* I2C Unit reg size */
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#define MPC10X_EUMB_DUART_OFFSET 0x00004000 /* DUART Unit reg offset (8245) */
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#define MPC10X_EUMB_DUART_SIZE 0x00001000 /* DUART Unit reg size (8245) */
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#define MPC10X_EUMB_EPIC_OFFSET 0x00040000 /* EPIC offset in EUMB */
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#define MPC10X_EUMB_EPIC_SIZE 0x00030000 /* EPIC size */
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#define MPC10X_EUMB_PM_OFFSET 0x000fe000 /* Performance Monitor reg offset (8245) */
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#define MPC10X_EUMB_PM_SIZE 0x00001000 /* Performance Monitor reg size (8245) */
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#define MPC10X_EUMB_WP_OFFSET 0x000ff000 /* Data path diagnostic, watchpoint reg offset */
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#define MPC10X_EUMB_WP_SIZE 0x00001000 /* Data path diagnostic, watchpoint reg size */
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/*
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* Define some recommended places to put the EUMB regs.
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* For both maps, recommend putting the EUMB from 0xeff00000 to 0xefffffff.
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*/
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extern unsigned long ioremap_base;
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#define MPC10X_MAPA_EUMB_BASE (ioremap_base - MPC10X_EUMB_SIZE)
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#define MPC10X_MAPB_EUMB_BASE MPC10X_MAPA_EUMB_BASE
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enum ppc_sys_devices {
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MPC10X_IIC1,
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MPC10X_DMA0,
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MPC10X_DMA1,
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MPC10X_UART0,
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MPC10X_UART1,
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};
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int mpc10x_bridge_init(struct pci_controller *hose,
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uint current_map,
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uint new_map,
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uint phys_eumb_base);
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unsigned long mpc10x_get_mem_size(uint mem_map);
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int mpc10x_enable_store_gathering(struct pci_controller *hose);
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int mpc10x_disable_store_gathering(struct pci_controller *hose);
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/* For MPC107 boards that use the built-in openpic */
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void mpc10x_set_openpic(void);
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#endif /* __PPC_KERNEL_MPC10X_H */
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