diff options
| author | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
|---|---|---|
| committer | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
| commit | fcc9d2e5a6c89d22b8b773a64fb4ad21ac318446 (patch) | |
| tree | a57612d1888735a2ec7972891b68c1ac5ec8faea /arch/mips/alchemy/gpr | |
| parent | 8dea78da5cee153b8af9c07a2745f6c55057fe12 (diff) | |
Diffstat (limited to 'arch/mips/alchemy/gpr')
| -rw-r--r-- | arch/mips/alchemy/gpr/Makefile | 8 | ||||
| -rw-r--r-- | arch/mips/alchemy/gpr/board_setup.c | 87 | ||||
| -rw-r--r-- | arch/mips/alchemy/gpr/init.c | 63 | ||||
| -rw-r--r-- | arch/mips/alchemy/gpr/platform.c | 183 |
4 files changed, 341 insertions, 0 deletions
diff --git a/arch/mips/alchemy/gpr/Makefile b/arch/mips/alchemy/gpr/Makefile new file mode 100644 index 00000000000..cb73fe256dc --- /dev/null +++ b/arch/mips/alchemy/gpr/Makefile | |||
| @@ -0,0 +1,8 @@ | |||
| 1 | # | ||
| 2 | # Copyright 2003 MontaVista Software Inc. | ||
| 3 | # Author: MontaVista Software, Inc. <source@mvista.com> | ||
| 4 | # | ||
| 5 | # Makefile for Trapeze ITS GPR board. | ||
| 6 | # | ||
| 7 | |||
| 8 | obj-y += board_setup.o init.o platform.o | ||
diff --git a/arch/mips/alchemy/gpr/board_setup.c b/arch/mips/alchemy/gpr/board_setup.c new file mode 100644 index 00000000000..5f8f0691ed2 --- /dev/null +++ b/arch/mips/alchemy/gpr/board_setup.c | |||
| @@ -0,0 +1,87 @@ | |||
| 1 | /* | ||
| 2 | * Copyright 2010 Wolfgang Grandegger <wg@denx.de> | ||
| 3 | * | ||
| 4 | * Copyright 2000-2003, 2008 MontaVista Software Inc. | ||
| 5 | * Author: MontaVista Software, Inc. <source@mvista.com> | ||
| 6 | * | ||
| 7 | * This program is free software; you can redistribute it and/or modify it | ||
| 8 | * under the terms of the GNU General Public License as published by the | ||
| 9 | * Free Software Foundation; either version 2 of the License, or (at your | ||
| 10 | * option) any later version. | ||
| 11 | * | ||
| 12 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | ||
| 13 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | ||
| 14 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN | ||
| 15 | * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | ||
| 16 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
| 17 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF | ||
| 18 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON | ||
| 19 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
| 20 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | ||
| 21 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| 22 | * | ||
| 23 | * You should have received a copy of the GNU General Public License along | ||
| 24 | * with this program; if not, write to the Free Software Foundation, Inc., | ||
| 25 | * 675 Mass Ave, Cambridge, MA 02139, USA. | ||
| 26 | */ | ||
| 27 | |||
| 28 | #include <linux/gpio.h> | ||
| 29 | #include <linux/init.h> | ||
| 30 | #include <linux/interrupt.h> | ||
| 31 | #include <linux/delay.h> | ||
| 32 | #include <linux/pm.h> | ||
| 33 | |||
| 34 | #include <asm/reboot.h> | ||
| 35 | #include <asm/mach-au1x00/au1000.h> | ||
| 36 | |||
| 37 | #include <prom.h> | ||
| 38 | |||
| 39 | char irq_tab_alchemy[][5] __initdata = { | ||
| 40 | [0] = { -1, AU1500_PCI_INTA, AU1500_PCI_INTB, 0xff, 0xff }, | ||
| 41 | }; | ||
| 42 | |||
| 43 | static void gpr_reset(char *c) | ||
| 44 | { | ||
| 45 | /* switch System-LED to orange (red# and green# on) */ | ||
| 46 | alchemy_gpio_direction_output(4, 0); | ||
| 47 | alchemy_gpio_direction_output(5, 0); | ||
| 48 | |||
| 49 | /* trigger watchdog to reset board in 200ms */ | ||
| 50 | printk(KERN_EMERG "Triggering watchdog soft reset...\n"); | ||
| 51 | raw_local_irq_disable(); | ||
| 52 | alchemy_gpio_direction_output(1, 0); | ||
| 53 | udelay(1); | ||
| 54 | alchemy_gpio_set_value(1, 1); | ||
| 55 | while (1) | ||
| 56 | cpu_wait(); | ||
| 57 | } | ||
| 58 | |||
| 59 | static void gpr_power_off(void) | ||
| 60 | { | ||
| 61 | while (1) | ||
| 62 | cpu_wait(); | ||
| 63 | } | ||
| 64 | |||
| 65 | void __init board_setup(void) | ||
| 66 | { | ||
| 67 | printk(KERN_INFO "Trapeze ITS GPR board\n"); | ||
| 68 | |||
| 69 | pm_power_off = gpr_power_off; | ||
| 70 | _machine_halt = gpr_power_off; | ||
| 71 | _machine_restart = gpr_reset; | ||
| 72 | |||
| 73 | /* Enable UART1/3 */ | ||
| 74 | alchemy_uart_enable(AU1000_UART3_PHYS_ADDR); | ||
| 75 | alchemy_uart_enable(AU1000_UART1_PHYS_ADDR); | ||
| 76 | |||
| 77 | /* Take away Reset of UMTS-card */ | ||
| 78 | alchemy_gpio_direction_output(215, 1); | ||
| 79 | |||
| 80 | #ifdef CONFIG_PCI | ||
| 81 | #if defined(__MIPSEB__) | ||
| 82 | au_writel(0xf | (2 << 6) | (1 << 4), Au1500_PCI_CFG); | ||
| 83 | #else | ||
| 84 | au_writel(0xf, Au1500_PCI_CFG); | ||
| 85 | #endif | ||
| 86 | #endif | ||
| 87 | } | ||
diff --git a/arch/mips/alchemy/gpr/init.c b/arch/mips/alchemy/gpr/init.c new file mode 100644 index 00000000000..229aafae680 --- /dev/null +++ b/arch/mips/alchemy/gpr/init.c | |||
| @@ -0,0 +1,63 @@ | |||
| 1 | /* | ||
| 2 | * Copyright 2010 Wolfgang Grandegger <wg@denx.de> | ||
| 3 | * | ||
| 4 | * Copyright 2003, 2008 MontaVista Software Inc. | ||
| 5 | * Author: MontaVista Software, Inc. <source@mvista.com> | ||
| 6 | * | ||
| 7 | * This program is free software; you can redistribute it and/or modify it | ||
| 8 | * under the terms of the GNU General Public License as published by the | ||
| 9 | * Free Software Foundation; either version 2 of the License, or (at your | ||
| 10 | * option) any later version. | ||
| 11 | * | ||
| 12 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | ||
| 13 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | ||
| 14 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN | ||
| 15 | * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | ||
| 16 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
| 17 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF | ||
| 18 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON | ||
| 19 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
| 20 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | ||
| 21 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| 22 | * | ||
| 23 | * You should have received a copy of the GNU General Public License along | ||
| 24 | * with this program; if not, write to the Free Software Foundation, Inc., | ||
| 25 | * 675 Mass Ave, Cambridge, MA 02139, USA. | ||
| 26 | */ | ||
| 27 | |||
| 28 | #include <linux/init.h> | ||
| 29 | #include <linux/kernel.h> | ||
| 30 | |||
| 31 | #include <asm/bootinfo.h> | ||
| 32 | #include <asm/mach-au1x00/au1000.h> | ||
| 33 | |||
| 34 | #include <prom.h> | ||
| 35 | |||
| 36 | const char *get_system_type(void) | ||
| 37 | { | ||
| 38 | return "GPR"; | ||
| 39 | } | ||
| 40 | |||
| 41 | void __init prom_init(void) | ||
| 42 | { | ||
| 43 | unsigned char *memsize_str; | ||
| 44 | unsigned long memsize; | ||
| 45 | |||
| 46 | prom_argc = fw_arg0; | ||
| 47 | prom_argv = (char **)fw_arg1; | ||
| 48 | prom_envp = (char **)fw_arg2; | ||
| 49 | |||
| 50 | prom_init_cmdline(); | ||
| 51 | |||
| 52 | memsize_str = prom_getenv("memsize"); | ||
| 53 | if (!memsize_str) | ||
| 54 | memsize = 0x04000000; | ||
| 55 | else | ||
| 56 | strict_strtoul(memsize_str, 0, &memsize); | ||
| 57 | add_memory_region(0, memsize, BOOT_MEM_RAM); | ||
| 58 | } | ||
| 59 | |||
| 60 | void prom_putchar(unsigned char c) | ||
| 61 | { | ||
| 62 | alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c); | ||
| 63 | } | ||
diff --git a/arch/mips/alchemy/gpr/platform.c b/arch/mips/alchemy/gpr/platform.c new file mode 100644 index 00000000000..14b46629cfc --- /dev/null +++ b/arch/mips/alchemy/gpr/platform.c | |||
| @@ -0,0 +1,183 @@ | |||
| 1 | /* | ||
| 2 | * GPR board platform device registration | ||
| 3 | * | ||
| 4 | * Copyright (C) 2010 Wolfgang Grandegger <wg@denx.de> | ||
| 5 | * | ||
| 6 | * This program is free software; you can redistribute it and/or modify | ||
| 7 | * it under the terms of the GNU General Public License as published by | ||
| 8 | * the Free Software Foundation; either version 2 of the License, or | ||
| 9 | * (at your option) any later version. | ||
| 10 | * | ||
| 11 | * This program is distributed in the hope that it will be useful, | ||
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 14 | * GNU General Public License for more details. | ||
| 15 | * | ||
| 16 | * You should have received a copy of the GNU General Public License | ||
| 17 | * along with this program; if not, write to the Free Software | ||
| 18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 19 | */ | ||
| 20 | |||
| 21 | #include <linux/init.h> | ||
| 22 | #include <linux/platform_device.h> | ||
| 23 | #include <linux/mtd/partitions.h> | ||
| 24 | #include <linux/mtd/physmap.h> | ||
| 25 | #include <linux/leds.h> | ||
| 26 | #include <linux/gpio.h> | ||
| 27 | #include <linux/i2c.h> | ||
| 28 | #include <linux/i2c-gpio.h> | ||
| 29 | |||
| 30 | #include <asm/mach-au1x00/au1000.h> | ||
| 31 | |||
| 32 | /* | ||
| 33 | * Watchdog | ||
| 34 | */ | ||
| 35 | static struct resource gpr_wdt_resource[] = { | ||
| 36 | [0] = { | ||
| 37 | .start = 1, | ||
| 38 | .end = 1, | ||
| 39 | .name = "gpr-adm6320-wdt", | ||
| 40 | .flags = IORESOURCE_IRQ, | ||
| 41 | } | ||
| 42 | }; | ||
| 43 | |||
| 44 | static struct platform_device gpr_wdt_device = { | ||
| 45 | .name = "adm6320-wdt", | ||
| 46 | .id = 0, | ||
| 47 | .num_resources = ARRAY_SIZE(gpr_wdt_resource), | ||
| 48 | .resource = gpr_wdt_resource, | ||
| 49 | }; | ||
| 50 | |||
| 51 | /* | ||
| 52 | * FLASH | ||
| 53 | * | ||
| 54 | * 0x00000000-0x00200000 : "kernel" | ||
| 55 | * 0x00200000-0x00a00000 : "rootfs" | ||
| 56 | * 0x01d00000-0x01f00000 : "config" | ||
| 57 | * 0x01c00000-0x01d00000 : "yamon" | ||
| 58 | * 0x01d00000-0x01d40000 : "yamon env vars" | ||
| 59 | * 0x00000000-0x00a00000 : "kernel+rootfs" | ||
| 60 | */ | ||
| 61 | static struct mtd_partition gpr_mtd_partitions[] = { | ||
| 62 | { | ||
| 63 | .name = "kernel", | ||
| 64 | .size = 0x00200000, | ||
| 65 | .offset = 0, | ||
| 66 | }, | ||
| 67 | { | ||
| 68 | .name = "rootfs", | ||
| 69 | .size = 0x00800000, | ||
| 70 | .offset = MTDPART_OFS_APPEND, | ||
| 71 | .mask_flags = MTD_WRITEABLE, | ||
| 72 | }, | ||
| 73 | { | ||
| 74 | .name = "config", | ||
| 75 | .size = 0x00200000, | ||
| 76 | .offset = 0x01d00000, | ||
| 77 | }, | ||
| 78 | { | ||
| 79 | .name = "yamon", | ||
| 80 | .size = 0x00100000, | ||
| 81 | .offset = 0x01c00000, | ||
| 82 | }, | ||
| 83 | { | ||
| 84 | .name = "yamon env vars", | ||
| 85 | .size = 0x00040000, | ||
| 86 | .offset = MTDPART_OFS_APPEND, | ||
| 87 | }, | ||
| 88 | { | ||
| 89 | .name = "kernel+rootfs", | ||
| 90 | .size = 0x00a00000, | ||
| 91 | .offset = 0, | ||
| 92 | }, | ||
| 93 | }; | ||
| 94 | |||
| 95 | static struct physmap_flash_data gpr_flash_data = { | ||
| 96 | .width = 4, | ||
| 97 | .nr_parts = ARRAY_SIZE(gpr_mtd_partitions), | ||
| 98 | .parts = gpr_mtd_partitions, | ||
| 99 | }; | ||
| 100 | |||
| 101 | static struct resource gpr_mtd_resource = { | ||
| 102 | .start = 0x1e000000, | ||
| 103 | .end = 0x1fffffff, | ||
| 104 | .flags = IORESOURCE_MEM, | ||
| 105 | }; | ||
| 106 | |||
| 107 | static struct platform_device gpr_mtd_device = { | ||
| 108 | .name = "physmap-flash", | ||
| 109 | .dev = { | ||
| 110 | .platform_data = &gpr_flash_data, | ||
| 111 | }, | ||
| 112 | .num_resources = 1, | ||
| 113 | .resource = &gpr_mtd_resource, | ||
| 114 | }; | ||
| 115 | |||
| 116 | /* | ||
| 117 | * LEDs | ||
| 118 | */ | ||
| 119 | static struct gpio_led gpr_gpio_leds[] = { | ||
| 120 | { /* green */ | ||
| 121 | .name = "gpr:green", | ||
| 122 | .gpio = 4, | ||
| 123 | .active_low = 1, | ||
| 124 | }, | ||
| 125 | { /* red */ | ||
| 126 | .name = "gpr:red", | ||
| 127 | .gpio = 5, | ||
| 128 | .active_low = 1, | ||
| 129 | } | ||
| 130 | }; | ||
| 131 | |||
| 132 | static struct gpio_led_platform_data gpr_led_data = { | ||
| 133 | .num_leds = ARRAY_SIZE(gpr_gpio_leds), | ||
| 134 | .leds = gpr_gpio_leds, | ||
| 135 | }; | ||
| 136 | |||
| 137 | static struct platform_device gpr_led_devices = { | ||
| 138 | .name = "leds-gpio", | ||
| 139 | .id = -1, | ||
| 140 | .dev = { | ||
| 141 | .platform_data = &gpr_led_data, | ||
| 142 | } | ||
| 143 | }; | ||
| 144 | |||
| 145 | /* | ||
| 146 | * I2C | ||
| 147 | */ | ||
| 148 | static struct i2c_gpio_platform_data gpr_i2c_data = { | ||
| 149 | .sda_pin = 209, | ||
| 150 | .sda_is_open_drain = 1, | ||
| 151 | .scl_pin = 210, | ||
| 152 | .scl_is_open_drain = 1, | ||
| 153 | .udelay = 2, /* ~100 kHz */ | ||
| 154 | .timeout = HZ, | ||
| 155 | }; | ||
| 156 | |||
| 157 | static struct platform_device gpr_i2c_device = { | ||
| 158 | .name = "i2c-gpio", | ||
| 159 | .id = -1, | ||
| 160 | .dev.platform_data = &gpr_i2c_data, | ||
| 161 | }; | ||
| 162 | |||
| 163 | static struct i2c_board_info gpr_i2c_info[] __initdata = { | ||
| 164 | { | ||
| 165 | I2C_BOARD_INFO("lm83", 0x18), | ||
| 166 | .type = "lm83" | ||
| 167 | } | ||
| 168 | }; | ||
| 169 | |||
| 170 | static struct platform_device *gpr_devices[] __initdata = { | ||
| 171 | &gpr_wdt_device, | ||
| 172 | &gpr_mtd_device, | ||
| 173 | &gpr_i2c_device, | ||
| 174 | &gpr_led_devices, | ||
| 175 | }; | ||
| 176 | |||
| 177 | static int __init gpr_dev_init(void) | ||
| 178 | { | ||
| 179 | i2c_register_board_info(0, gpr_i2c_info, ARRAY_SIZE(gpr_i2c_info)); | ||
| 180 | |||
| 181 | return platform_add_devices(gpr_devices, ARRAY_SIZE(gpr_devices)); | ||
| 182 | } | ||
| 183 | device_initcall(gpr_dev_init); | ||
