1# SPDX-License-Identifier: GPL-2.0-only 2if ARCH_IXP4XX 3 4menu "Intel IXP4xx Implementation Options" 5 6comment "IXP4xx Platforms" 7 8config MACH_IXP4XX_OF 9 bool 10 prompt "Device Tree IXP4xx boards" 11 default y 12 select ARM_APPENDED_DTB # Old Redboot bootloaders deployed 13 select I2C 14 select I2C_IOP3XX 15 select PCI 16 select USE_OF 17 help 18 Say 'Y' here to support Device Tree-based IXP4xx platforms. 19 20config ARCH_ADI_COYOTE 21 bool "Coyote" 22 depends on IXP4XX_PCI_LEGACY 23 help 24 Say 'Y' here if you want your kernel to support the ADI 25 Engineering Coyote Gateway Reference Platform. For more 26 information on this platform, see <file:Documentation/arm/ixp4xx.rst>. 27 28config MACH_GATEWAY7001 29 bool "Gateway 7001" 30 depends on IXP4XX_PCI_LEGACY 31 help 32 Say 'Y' here if you want your kernel to support Gateway's 33 7001 Access Point. For more information on this platform, 34 see http://openwrt.org 35 36config MACH_IXDPG425 37 bool "IXDPG425" 38 depends on IXP4XX_PCI_LEGACY 39 help 40 Say 'Y' here if you want your kernel to support Intel's 41 IXDPG425 Development Platform (Also known as Montajade). 42 For more information on this platform, see <file:Documentation/arm/ixp4xx.rst>. 43 44config MACH_GORAMO_MLR 45 bool "GORAMO Multi Link Router" 46 help 47 Say 'Y' here if you want your kernel to support GORAMO 48 MultiLink router. 49 50config ARCH_PRPMC1100 51 bool "PrPMC1100" 52 help 53 Say 'Y' here if you want your kernel to support the Motorola 54 PrPCM1100 Processor Mezanine Module. For more information on 55 this platform, see <file:Documentation/arm/ixp4xx.rst>. 56 57config MACH_FSG 58 bool 59 prompt "Freecom FSG-3" 60 depends on IXP4XX_PCI_LEGACY 61 help 62 Say 'Y' here if you want your kernel to support Freecom's 63 FSG-3 device. For more information on this platform, 64 see http://www.nslu2-linux.org/wiki/FSG3/HomePage 65 66# 67# Certain registers and IRQs are only enabled if supporting IXP465 CPUs 68# 69config CPU_IXP46X 70 bool 71 depends on MACH_IXDP465 72 default y 73 74config CPU_IXP43X 75 bool 76 depends on MACH_KIXRP435 77 default y 78 79config MACH_GTWX5715 80 bool "Gemtek WX5715 (Linksys WRV54G)" 81 depends on ARCH_IXP4XX 82 depends on IXP4XX_PCI_LEGACY 83 help 84 This board is currently inside the Linksys WRV54G Gateways. 85 86 IXP425 - 266mhz 87 32mb SDRAM 88 8mb Flash 89 miniPCI slot 0 does not have a card connector soldered to the board 90 miniPCI slot 1 has an ISL3880 802.11g card (Prism54) 91 npe0 is connected to a Kendin KS8995M Switch (4 ports) 92 npe1 is the "wan" port 93 "Console" UART is available on J11 as console 94 "High Speed" UART is n/c (as far as I can tell) 95 20 Pin ARM/Xscale JTAG interface on J2 96 97comment "IXP4xx Options" 98 99config IXP4XX_PCI_LEGACY 100 bool "IXP4xx legacy PCI driver support" 101 depends on PCI 102 help 103 Selects legacy PCI driver. 104 Not recommended for new development. 105 106config IXP4XX_INDIRECT_PCI 107 bool "Use indirect PCI memory access" 108 depends on IXP4XX_PCI_LEGACY 109 help 110 IXP4xx provides two methods of accessing PCI memory space: 111 112 1) A direct mapped window from 0x48000000 to 0x4BFFFFFF (64MB). 113 To access PCI via this space, we simply ioremap() the BAR 114 into the kernel and we can use the standard read[bwl]/write[bwl] 115 macros. This is the preferred method due to speed but it 116 limits the system to just 64MB of PCI memory. This can be 117 problematic if using video cards and other memory-heavy devices. 118 119 2) If > 64MB of memory space is required, the IXP4xx can be 120 configured to use indirect registers to access the whole PCI 121 memory space. This currently allows for up to 1 GB (0x10000000 122 to 0x4FFFFFFF) of memory on the bus. The disadvantage of this 123 is that every PCI access requires three local register accesses 124 plus a spinlock, but in some cases the performance hit is 125 acceptable. In addition, you cannot mmap() PCI devices in this 126 case due to the indirect nature of the PCI window. 127 128 By default, the direct method is used. Choose this option if you 129 need to use the indirect method instead. If you don't know 130 what you need, leave this option unselected. 131 132endmenu 133 134endif 135