Ralf Baechle | 832348f | 2007-10-18 01:10:12 +0100 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | * This program is free software; you can redistribute it and/or modify it |
| 3 | * under the terms of the GNU General Public License as published by the |
| 4 | * Free Software Foundation; either version 2 of the License, or (at your |
| 5 | * option) any later version. |
| 6 | * |
| 7 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 8 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 9 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN |
| 10 | * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 11 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 12 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| 13 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| 14 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 15 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 16 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License along |
| 19 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 20 | * 675 Mass Ave, Cambridge, MA 02139, USA. |
| 21 | * |
Ralf Baechle | 832348f | 2007-10-18 01:10:12 +0100 | [diff] [blame] | 22 | * Copyright 2001 MontaVista Software Inc. |
| 23 | * Author: MontaVista Software, Inc. |
| 24 | * ahennessy@mvista.com |
| 25 | * |
| 26 | * Copyright (C) 2000-2001 Toshiba Corporation |
| 27 | * Copyright (C) 2007 Ralf Baechle (ralf@linux-mips.org) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | */ |
| 29 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | #include <linux/init.h> |
| 31 | #include <linux/kernel.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | #include <linux/types.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | #include <linux/ioport.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | #include <linux/delay.h> |
Atsushi Nemoto | a0574e04 | 2007-03-01 00:40:21 +0900 | [diff] [blame] | 35 | #include <linux/platform_device.h> |
Atsushi Nemoto | 1bd0962 | 2008-04-05 00:56:27 +0900 | [diff] [blame] | 36 | #include <linux/gpio.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | #include <asm/reboot.h> |
Atsushi Nemoto | f6727fb | 2008-07-24 00:25:19 +0900 | [diff] [blame] | 38 | #include <asm/txx9pio.h> |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 39 | #include <asm/txx9/generic.h> |
Atsushi Nemoto | 89d63fe | 2008-07-11 00:33:08 +0900 | [diff] [blame] | 40 | #include <asm/txx9/pci.h> |
Atsushi Nemoto | 22b1d70 | 2008-07-11 00:31:36 +0900 | [diff] [blame] | 41 | #include <asm/txx9/jmr3927.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | #include <asm/mipsregs.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | |
Atsushi Nemoto | a49297e | 2008-07-24 00:25:17 +0900 | [diff] [blame] | 44 | static void jmr3927_machine_restart(char *command) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | { |
Atsushi Nemoto | a49297e | 2008-07-24 00:25:17 +0900 | [diff] [blame] | 46 | local_irq_disable(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | #if 1 /* Resetting PCI bus */ |
| 48 | jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR); |
| 49 | jmr3927_ioc_reg_out(JMR3927_IOC_RESET_PCI, JMR3927_IOC_RESET_ADDR); |
| 50 | (void)jmr3927_ioc_reg_in(JMR3927_IOC_RESET_ADDR); /* flush WB */ |
| 51 | mdelay(1); |
| 52 | jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR); |
| 53 | #endif |
| 54 | jmr3927_ioc_reg_out(JMR3927_IOC_RESET_CPU, JMR3927_IOC_RESET_ADDR); |
Atsushi Nemoto | a49297e | 2008-07-24 00:25:17 +0900 | [diff] [blame] | 55 | /* fallback */ |
| 56 | (*_machine_halt)(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | } |
| 58 | |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 59 | static void __init jmr3927_time_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | { |
Atsushi Nemoto | f6727fb | 2008-07-24 00:25:19 +0900 | [diff] [blame] | 61 | tx3927_time_init(0, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | } |
| 63 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 64 | #define DO_WRITE_THROUGH |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | static void jmr3927_board_init(void); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 68 | static void __init jmr3927_mem_setup(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | { |
| 70 | char *argptr; |
| 71 | |
| 72 | set_io_port_base(JMR3927_PORT_BASE + JMR3927_PCIIO); |
| 73 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | _machine_restart = jmr3927_machine_restart; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | /* cache setup */ |
| 77 | { |
| 78 | unsigned int conf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | #ifdef DO_WRITE_THROUGH |
| 80 | int mips_config_cwfon = 0; |
| 81 | int mips_config_wbon = 0; |
| 82 | #else |
| 83 | int mips_config_cwfon = 1; |
| 84 | int mips_config_wbon = 1; |
| 85 | #endif |
| 86 | |
| 87 | conf = read_c0_conf(); |
Atsushi Nemoto | d10e025 | 2008-08-19 22:55:09 +0900 | [diff] [blame^] | 88 | conf &= ~(TX39_CONF_WBON | TX39_CONF_CWFON); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 89 | conf |= mips_config_wbon ? TX39_CONF_WBON : 0; |
| 90 | conf |= mips_config_cwfon ? TX39_CONF_CWFON : 0; |
| 91 | |
| 92 | write_c0_conf(conf); |
| 93 | write_c0_cache(0); |
| 94 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | |
| 96 | /* initialize board */ |
| 97 | jmr3927_board_init(); |
| 98 | |
Atsushi Nemoto | 7779a5e | 2008-07-25 23:08:06 +0900 | [diff] [blame] | 99 | tx3927_sio_init(0, 1 << 1); /* ch1: noCTS */ |
Ralf Baechle | 5eaf7a2 | 2005-03-04 17:24:32 +0000 | [diff] [blame] | 100 | #ifdef CONFIG_SERIAL_TXX9_CONSOLE |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | argptr = prom_getcmdline(); |
Atsushi Nemoto | bb72f1f | 2008-07-24 00:25:21 +0900 | [diff] [blame] | 102 | if (!strstr(argptr, "console=")) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | strcat(argptr, " console=ttyS1,115200"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | #endif |
| 105 | } |
| 106 | |
Atsushi Nemoto | 89d63fe | 2008-07-11 00:33:08 +0900 | [diff] [blame] | 107 | static void __init jmr3927_pci_setup(void) |
| 108 | { |
| 109 | #ifdef CONFIG_PCI |
| 110 | int extarb = !(tx3927_ccfgptr->ccfg & TX3927_CCFG_PCIXARB); |
| 111 | struct pci_controller *c; |
| 112 | |
| 113 | c = txx9_alloc_pci_controller(&txx9_primary_pcic, |
| 114 | JMR3927_PCIMEM, JMR3927_PCIMEM_SIZE, |
| 115 | JMR3927_PCIIO, JMR3927_PCIIO_SIZE); |
| 116 | register_pci_controller(c); |
| 117 | if (!extarb) { |
| 118 | /* Reset PCI Bus */ |
| 119 | jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR); |
| 120 | udelay(100); |
| 121 | jmr3927_ioc_reg_out(JMR3927_IOC_RESET_PCI, |
| 122 | JMR3927_IOC_RESET_ADDR); |
| 123 | udelay(100); |
| 124 | jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR); |
| 125 | } |
| 126 | tx3927_pcic_setup(c, JMR3927_SDRAM_SIZE, extarb); |
Atsushi Nemoto | 455cc25 | 2008-07-25 23:01:35 +0900 | [diff] [blame] | 127 | tx3927_setup_pcierr_irq(); |
Atsushi Nemoto | 89d63fe | 2008-07-11 00:33:08 +0900 | [diff] [blame] | 128 | #endif /* CONFIG_PCI */ |
| 129 | } |
| 130 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | static void __init jmr3927_board_init(void) |
| 132 | { |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 133 | txx9_cpu_clock = JMR3927_CORECLK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | /* SDRAMC are configured by PROM */ |
| 135 | |
| 136 | /* ROMC */ |
| 137 | tx3927_romcptr->cr[1] = JMR3927_ROMCE1 | 0x00030048; |
| 138 | tx3927_romcptr->cr[2] = JMR3927_ROMCE2 | 0x000064c8; |
| 139 | tx3927_romcptr->cr[3] = JMR3927_ROMCE3 | 0x0003f698; |
| 140 | tx3927_romcptr->cr[5] = JMR3927_ROMCE5 | 0x0000f218; |
| 141 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | /* Pin selection */ |
| 143 | tx3927_ccfgptr->pcfg &= ~TX3927_PCFG_SELALL; |
| 144 | tx3927_ccfgptr->pcfg |= |
| 145 | TX3927_PCFG_SELSIOC(0) | TX3927_PCFG_SELSIO_ALL | |
| 146 | (TX3927_PCFG_SELDMA_ALL & ~TX3927_PCFG_SELDMA(1)); |
| 147 | |
Atsushi Nemoto | f6727fb | 2008-07-24 00:25:19 +0900 | [diff] [blame] | 148 | tx3927_setup(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | /* PIO[15:12] connected to LEDs */ |
Atsushi Nemoto | 1bd0962 | 2008-04-05 00:56:27 +0900 | [diff] [blame] | 151 | __raw_writel(0x0000f000, &tx3927_pioptr->dir); |
Atsushi Nemoto | 1bd0962 | 2008-04-05 00:56:27 +0900 | [diff] [blame] | 152 | gpio_request(11, "dipsw1"); |
| 153 | gpio_request(10, "dipsw2"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | |
Atsushi Nemoto | f6727fb | 2008-07-24 00:25:19 +0900 | [diff] [blame] | 155 | jmr3927_pci_setup(); |
| 156 | |
| 157 | /* SIO0 DTR on */ |
| 158 | jmr3927_ioc_reg_out(0, JMR3927_IOC_DTR_ADDR); |
| 159 | |
| 160 | jmr3927_led_set(0); |
| 161 | |
| 162 | printk(KERN_INFO |
| 163 | "JMR-TX3927 (Rev %d) --- IOC(Rev %d) DIPSW:%d,%d,%d,%d\n", |
| 164 | jmr3927_ioc_reg_in(JMR3927_IOC_BREV_ADDR) & JMR3927_REV_MASK, |
| 165 | jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR) & JMR3927_REV_MASK, |
| 166 | jmr3927_dipsw1(), jmr3927_dipsw2(), |
| 167 | jmr3927_dipsw3(), jmr3927_dipsw4()); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | } |
Atsushi Nemoto | a0574e04 | 2007-03-01 00:40:21 +0900 | [diff] [blame] | 169 | |
| 170 | /* This trick makes rtc-ds1742 driver usable as is. */ |
Atsushi Nemoto | 4c642f3 | 2008-07-13 23:37:56 +0900 | [diff] [blame] | 171 | static unsigned long jmr3927_swizzle_addr_b(unsigned long port) |
Atsushi Nemoto | a0574e04 | 2007-03-01 00:40:21 +0900 | [diff] [blame] | 172 | { |
| 173 | if ((port & 0xffff0000) != JMR3927_IOC_NVRAMB_ADDR) |
| 174 | return port; |
| 175 | port = (port & 0xffff0000) | (port & 0x7fff << 1); |
| 176 | #ifdef __BIG_ENDIAN |
| 177 | return port; |
| 178 | #else |
| 179 | return port | 1; |
| 180 | #endif |
| 181 | } |
Atsushi Nemoto | a0574e04 | 2007-03-01 00:40:21 +0900 | [diff] [blame] | 182 | |
Atsushi Nemoto | bb72f1f | 2008-07-24 00:25:21 +0900 | [diff] [blame] | 183 | static void __init jmr3927_rtc_init(void) |
Atsushi Nemoto | a0574e04 | 2007-03-01 00:40:21 +0900 | [diff] [blame] | 184 | { |
Atsushi Nemoto | 4614c32 | 2007-05-01 01:49:20 +0900 | [diff] [blame] | 185 | static struct resource __initdata res = { |
Atsushi Nemoto | a0574e04 | 2007-03-01 00:40:21 +0900 | [diff] [blame] | 186 | .start = JMR3927_IOC_NVRAMB_ADDR - IO_BASE, |
| 187 | .end = JMR3927_IOC_NVRAMB_ADDR - IO_BASE + 0x800 - 1, |
| 188 | .flags = IORESOURCE_MEM, |
| 189 | }; |
Atsushi Nemoto | bb72f1f | 2008-07-24 00:25:21 +0900 | [diff] [blame] | 190 | platform_device_register_simple("rtc-ds1742", -1, &res, 1); |
Atsushi Nemoto | a0574e04 | 2007-03-01 00:40:21 +0900 | [diff] [blame] | 191 | } |
Atsushi Nemoto | 2064ba2 | 2007-11-24 01:20:27 +0900 | [diff] [blame] | 192 | |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 193 | static void __init jmr3927_device_init(void) |
Atsushi Nemoto | 2064ba2 | 2007-11-24 01:20:27 +0900 | [diff] [blame] | 194 | { |
Atsushi Nemoto | 4c642f3 | 2008-07-13 23:37:56 +0900 | [diff] [blame] | 195 | __swizzle_addr_b = jmr3927_swizzle_addr_b; |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 196 | jmr3927_rtc_init(); |
Atsushi Nemoto | 6831472 | 2008-07-24 00:25:18 +0900 | [diff] [blame] | 197 | tx3927_wdt_init(); |
Atsushi Nemoto | 2064ba2 | 2007-11-24 01:20:27 +0900 | [diff] [blame] | 198 | } |
Atsushi Nemoto | 2064ba2 | 2007-11-24 01:20:27 +0900 | [diff] [blame] | 199 | |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 200 | struct txx9_board_vec jmr3927_vec __initdata = { |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 201 | .system = "Toshiba JMR_TX3927", |
| 202 | .prom_init = jmr3927_prom_init, |
| 203 | .mem_setup = jmr3927_mem_setup, |
| 204 | .irq_setup = jmr3927_irq_setup, |
| 205 | .time_init = jmr3927_time_init, |
| 206 | .device_init = jmr3927_device_init, |
| 207 | #ifdef CONFIG_PCI |
| 208 | .pci_map_irq = jmr3927_pci_map_irq, |
| 209 | #endif |
| 210 | }; |