arch/arm/mach-orion5x/ls_hgl-setup.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * arch/arm/mach-orion5x/ls_hgl-setup.c
   4  *
   5  * Maintainer: Zhu Qingsen <zhuqs@cn.fujitsu.com>
   6  */
   7
   8 #include <linux/kernel.h>
   9 #include <linux/init.h>
  10 #include <linux/platform_device.h>
  11 #include <linux/mtd/physmap.h>
  12 #include <linux/mv643xx_eth.h>
  13 #include <linux/leds.h>
  14 #include <linux/gpio_keys.h>
  15 #include <linux/input.h>
  16 #include <linux/i2c.h>
  17 #include <linux/ata_platform.h>
  18 #include <linux/gpio.h>
  19 #include <asm/mach-types.h>
  20 #include <asm/mach/arch.h>
  21 #include "common.h"
  22 #include "mpp.h"
  23 #include "orion5x.h"
  24
  25 /*****************************************************************************
  26  * Linkstation LS-HGL Info
  27  ****************************************************************************/
  28
  29 /*
  30  * 256K NOR flash Device bus boot chip select
  31  */
  32
  33 #define LS_HGL_NOR_BOOT_BASE    0xf4000000
  34 #define LS_HGL_NOR_BOOT_SIZE    SZ_256K
  35
  36 /*****************************************************************************
  37  * 256KB NOR Flash on BOOT Device
  38  ****************************************************************************/
  39
  40 static struct physmap_flash_data ls_hgl_nor_flash_data = {
  41         .width          = 1,
  42 };
  43
  44 static struct resource ls_hgl_nor_flash_resource = {
  45         .flags  = IORESOURCE_MEM,
  46         .start  = LS_HGL_NOR_BOOT_BASE,
  47         .end    = LS_HGL_NOR_BOOT_BASE + LS_HGL_NOR_BOOT_SIZE - 1,
  48 };
  49
  50 static struct platform_device ls_hgl_nor_flash = {
  51         .name                   = "physmap-flash",
  52         .id                     = 0,
  53         .dev            = {
  54                 .platform_data  = &ls_hgl_nor_flash_data,
  55         },
  56         .num_resources          = 1,
  57         .resource               = &ls_hgl_nor_flash_resource,
  58 };
  59
  60 /*****************************************************************************
  61  * Ethernet
  62  ****************************************************************************/
  63
  64 static struct mv643xx_eth_platform_data ls_hgl_eth_data = {
  65         .phy_addr       = 8,
  66 };
  67
  68 /*****************************************************************************
  69  * RTC 5C372a on I2C bus
  70  ****************************************************************************/
  71
  72 static struct i2c_board_info __initdata ls_hgl_i2c_rtc = {
  73         I2C_BOARD_INFO("rs5c372a", 0x32),
  74 };
  75
  76 /*****************************************************************************
  77  * LEDs attached to GPIO
  78  ****************************************************************************/
  79
  80 #define LS_HGL_GPIO_LED_ALARM   2
  81 #define LS_HGL_GPIO_LED_INFO    3
  82 #define LS_HGL_GPIO_LED_FUNC    17
  83 #define LS_HGL_GPIO_LED_PWR     0
  84
  85
  86 static struct gpio_led ls_hgl_led_pins[] = {
  87         {
  88                 .name      = "alarm:red",
  89                 .gpio      = LS_HGL_GPIO_LED_ALARM,
  90                 .active_low     = 1,
  91         }, {
  92                 .name      = "info:amber",
  93                 .gpio      = LS_HGL_GPIO_LED_INFO,
  94                 .active_low     = 1,
  95         }, {
  96                 .name      = "func:blue:top",
  97                 .gpio      = LS_HGL_GPIO_LED_FUNC,
  98                 .active_low     = 1,
  99         }, {
 100                 .name      = "power:blue:bottom",
 101                 .gpio      = LS_HGL_GPIO_LED_PWR,
 102         },
 103 };
 104
 105 static struct gpio_led_platform_data ls_hgl_led_data = {
 106         .leds      = ls_hgl_led_pins,
 107         .num_leds       = ARRAY_SIZE(ls_hgl_led_pins),
 108 };
 109
 110 static struct platform_device ls_hgl_leds = {
 111         .name   = "leds-gpio",
 112         .id     = -1,
 113         .dev    = {
 114                 .platform_data  = &ls_hgl_led_data,
 115         },
 116 };
 117
 118 /****************************************************************************
 119  * GPIO Attached Keys
 120  ****************************************************************************/
 121 #define LS_HGL_GPIO_KEY_FUNC       15
 122 #define LS_HGL_GPIO_KEY_POWER      8
 123 #define LS_HGL_GPIO_KEY_AUTOPOWER  10
 124
 125 #define LS_HGL_SW_POWER     0x00
 126 #define LS_HGL_SW_AUTOPOWER 0x01
 127
 128 static struct gpio_keys_button ls_hgl_buttons[] = {
 129         {
 130                 .code      = KEY_OPTION,
 131                 .gpio      = LS_HGL_GPIO_KEY_FUNC,
 132                 .desc      = "Function Button",
 133                 .active_low     = 1,
 134         }, {
 135                 .type           = EV_SW,
 136                 .code      = LS_HGL_SW_POWER,
 137                 .gpio      = LS_HGL_GPIO_KEY_POWER,
 138                 .desc      = "Power-on Switch",
 139                 .active_low     = 1,
 140         }, {
 141                 .type           = EV_SW,
 142                 .code      = LS_HGL_SW_AUTOPOWER,
 143                 .gpio      = LS_HGL_GPIO_KEY_AUTOPOWER,
 144                 .desc      = "Power-auto Switch",
 145                 .active_low     = 1,
 146         },
 147 };
 148
 149 static struct gpio_keys_platform_data ls_hgl_button_data = {
 150         .buttons        = ls_hgl_buttons,
 151         .nbuttons       = ARRAY_SIZE(ls_hgl_buttons),
 152 };
 153
 154 static struct platform_device ls_hgl_button_device = {
 155         .name      = "gpio-keys",
 156         .id          = -1,
 157         .num_resources  = 0,
 158         .dev        = {
 159                 .platform_data  = &ls_hgl_button_data,
 160         },
 161 };
 162
 163
 164 /*****************************************************************************
 165  * SATA
 166  ****************************************************************************/
 167 static struct mv_sata_platform_data ls_hgl_sata_data = {
 168         .n_ports        = 2,
 169 };
 170
 171
 172 /*****************************************************************************
 173  * Linkstation LS-HGL specific power off method: reboot
 174  ****************************************************************************/
 175 /*
 176  * On the Linkstation LS-HGL, the shutdown process is following:
 177  * - Userland monitors key events until the power switch goes to off position
 178  * - The board reboots
 179  * - U-boot starts and goes into an idle mode waiting for the user
 180  *   to move the switch to ON position
 181  */
 182
 183 static void ls_hgl_power_off(void)
 184 {
 185         orion5x_restart(REBOOT_HARD, NULL);
 186 }
 187
 188
 189 /*****************************************************************************
 190  * General Setup
 191  ****************************************************************************/
 192
 193 #define LS_HGL_GPIO_USB_POWER   9
 194 #define LS_HGL_GPIO_AUTO_POWER  10
 195 #define LS_HGL_GPIO_POWER           8
 196
 197 #define LS_HGL_GPIO_HDD_POWER   1
 198
 199 static unsigned int ls_hgl_mpp_modes[] __initdata = {
 200         MPP0_GPIO, /* LED_PWR */
 201         MPP1_GPIO, /* HDD_PWR */
 202         MPP2_GPIO, /* LED_ALARM */
 203         MPP3_GPIO, /* LED_INFO */
 204         MPP4_UNUSED,
 205         MPP5_UNUSED,
 206         MPP6_GPIO, /* FAN_LCK */
 207         MPP7_GPIO, /* INIT */
 208         MPP8_GPIO, /* POWER */
 209         MPP9_GPIO, /* USB_PWR */
 210         MPP10_GPIO, /* AUTO_POWER */
 211         MPP11_UNUSED, /* LED_ETH (dummy) */
 212         MPP12_UNUSED,
 213         MPP13_UNUSED,
 214         MPP14_UNUSED,
 215         MPP15_GPIO, /* FUNC */
 216         MPP16_UNUSED,
 217         MPP17_GPIO, /* LED_FUNC */
 218         MPP18_UNUSED,
 219         MPP19_UNUSED,
 220         0,
 221 };
 222
 223 static void __init ls_hgl_init(void)
 224 {
 225         /*
 226          * Setup basic Orion functions. Need to be called early.
 227          */
 228         orion5x_init();
 229
 230         orion5x_mpp_conf(ls_hgl_mpp_modes);
 231
 232         /*
 233          * Configure peripherals.
 234          */
 235         orion5x_ehci0_init();
 236         orion5x_ehci1_init();
 237         orion5x_eth_init(&ls_hgl_eth_data);
 238         orion5x_i2c_init();
 239         orion5x_sata_init(&ls_hgl_sata_data);
 240         orion5x_uart0_init();
 241         orion5x_xor_init();
 242
 243         mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
 244                                     ORION_MBUS_DEVBUS_BOOT_ATTR,
 245                                     LS_HGL_NOR_BOOT_BASE,
 246                                     LS_HGL_NOR_BOOT_SIZE);
 247         platform_device_register(&ls_hgl_nor_flash);
 248
 249         platform_device_register(&ls_hgl_button_device);
 250
 251         platform_device_register(&ls_hgl_leds);
 252
 253         i2c_register_board_info(0, &ls_hgl_i2c_rtc, 1);
 254
 255         /* enable USB power */
 256         gpio_set_value(LS_HGL_GPIO_USB_POWER, 1);
 257
 258         /* register power-off method */
 259         pm_power_off = ls_hgl_power_off;
 260
 261         pr_info("%s: finished\n", __func__);
 262 }
 263
 264 MACHINE_START(LINKSTATION_LS_HGL, "Buffalo Linkstation LS-HGL")
 265         /* Maintainer: Zhu Qingsen <zhuqs@cn.fujistu.com> */
 266         .atag_offset    = 0x100,
 267         .nr_irqs        = ORION5X_NR_IRQS,
 268         .init_machine   = ls_hgl_init,
 269         .map_io         = orion5x_map_io,
 270         .init_early     = orion5x_init_early,
 271         .init_irq       = orion5x_init_irq,
 272         .init_time      = orion5x_timer_init,
 273         .fixup          = tag_fixup_mem32,
 274         .restart        = orion5x_restart,
 275 MACHINE_END