arch/arm/mach-ks8695/board-sg.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * board-sg.c -- support for the SnapGear KS8695 based boards
   4  */
   5
   6 #include <linux/kernel.h>
   7 #include <linux/types.h>
   8 #include <linux/init.h>
   9 #include <linux/platform_device.h>
  10 #include <linux/mtd/mtd.h>
  11 #include <linux/mtd/map.h>
  12 #include <linux/mtd/physmap.h>
  13 #include <linux/mtd/partitions.h>
  14 #include <asm/mach-types.h>
  15 #include <asm/mach/arch.h>
  16 #include "devices.h"
  17 #include "generic.h"
  18
  19 /*
  20  * The SG310 machine type is fitted with a conventional 8MB Strataflash
  21  * device. Define its partitioning.
  22  */
  23 #define FL_BASE         0x02000000
  24 #define FL_SIZE         SZ_8M
  25
  26 static struct mtd_partition sg_mtd_partitions[] = {
  27         [0] = {
  28                 .name   = "SnapGear Boot Loader",
  29                 .size   = SZ_128K,
  30         },
  31         [1] = {
  32                 .name   = "SnapGear non-volatile configuration",
  33                 .size   = SZ_512K,
  34                 .offset = SZ_256K,
  35         },
  36         [2] = {
  37                 .name   = "SnapGear image",
  38                 .offset = SZ_512K + SZ_256K,
  39         },
  40         [3] = {
  41                 .name   = "SnapGear StrataFlash",
  42         },
  43         [4] = {
  44                 .name   = "SnapGear Boot Tags",
  45                 .size   = SZ_128K,
  46                 .offset = SZ_128K,
  47         },
  48 };
  49
  50 static struct physmap_flash_data sg_mtd_pdata = {
  51         .width          = 1,
  52         .nr_parts       = ARRAY_SIZE(sg_mtd_partitions),
  53         .parts          = sg_mtd_partitions,
  54 };
  55
  56
  57 static struct resource sg_mtd_resource[] = {
  58         [0] = {
  59                 .start = FL_BASE,
  60                 .end   = FL_BASE + FL_SIZE - 1,
  61                 .flags = IORESOURCE_MEM,
  62         },
  63 };
  64
  65 static struct platform_device sg_mtd_device = {
  66         .name           = "physmap-flash",
  67         .id             = 0,
  68         .num_resources  = ARRAY_SIZE(sg_mtd_resource),
  69         .resource       = sg_mtd_resource,
  70         .dev            = {
  71                 .platform_data = &sg_mtd_pdata,
  72         },
  73 };
  74
  75 static void __init sg_init(void)
  76 {
  77         ks8695_add_device_lan();
  78         ks8695_add_device_wan();
  79
  80         if (machine_is_sg310())
  81                 platform_device_register(&sg_mtd_device);
  82 }
  83
  84 #ifdef CONFIG_MACH_LITE300
  85 MACHINE_START(LITE300, "SecureComputing/SG300")
  86         /* SnapGear */
  87         .atag_offset    = 0x100,
  88         .map_io         = ks8695_map_io,
  89         .init_irq       = ks8695_init_irq,
  90         .init_machine   = sg_init,
  91         .init_time      = ks8695_timer_init,
  92         .restart        = ks8695_restart,
  93 MACHINE_END
  94 #endif
  95
  96 #ifdef CONFIG_MACH_SG310
  97 MACHINE_START(SG310, "McAfee/SG310")
  98         /* SnapGear */
  99         .atag_offset    = 0x100,
 100         .map_io         = ks8695_map_io,
 101         .init_irq       = ks8695_init_irq,
 102         .init_machine   = sg_init,
 103         .init_time      = ks8695_timer_init,
 104         .restart        = ks8695_restart,
 105 MACHINE_END
 106 #endif
 107
 108 #ifdef CONFIG_MACH_SE4200
 109 MACHINE_START(SE4200, "SecureComputing/SE4200")
 110         /* SnapGear */
 111         .atag_offset    = 0x100,
 112         .map_io         = ks8695_map_io,
 113         .init_irq       = ks8695_init_irq,
 114         .init_machine   = sg_init,
 115         .init_time      = ks8695_timer_init,
 116         .restart        = ks8695_restart,
 117 MACHINE_END
 118 #endif