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.
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.
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.
22 * Copyright 2001 MontaVista Software Inc.
23 * Author: MontaVista Software, Inc.
24 * ahennessy@mvista.com
26 * Copyright (C) 2000-2001 Toshiba Corporation
27 * Copyright (C) 2007 Ralf Baechle (ralf@linux-mips.org)
30 #include <linux/init.h>
31 #include <linux/kernel.h>
32 #include <linux/types.h>
33 #include <linux/ioport.h>
34 #include <linux/delay.h>
35 #include <linux/platform_device.h>
36 #include <linux/gpio.h>
37 #include <asm/reboot.h>
38 #include <asm/txx9pio.h>
39 #include <asm/txx9/generic.h>
40 #include <asm/txx9/pci.h>
41 #include <asm/txx9/jmr3927.h>
42 #include <asm/mipsregs.h>
44 static void jmr3927_machine_restart(char *command)
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 */
52 jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
54 jmr3927_ioc_reg_out(JMR3927_IOC_RESET_CPU, JMR3927_IOC_RESET_ADDR);
59 static void __init jmr3927_time_init(void)
61 tx3927_time_init(0, 1);
64 #define DO_WRITE_THROUGH
65 #define DO_ENABLE_CACHE
67 static void jmr3927_board_init(void);
69 static void __init jmr3927_mem_setup(void)
73 set_io_port_base(JMR3927_PORT_BASE + JMR3927_PCIIO);
75 _machine_restart = jmr3927_machine_restart;
80 #ifdef DO_ENABLE_CACHE
81 int mips_ic_disable = 0, mips_dc_disable = 0;
83 int mips_ic_disable = 1, mips_dc_disable = 1;
85 #ifdef DO_WRITE_THROUGH
86 int mips_config_cwfon = 0;
87 int mips_config_wbon = 0;
89 int mips_config_cwfon = 1;
90 int mips_config_wbon = 1;
93 conf = read_c0_conf();
94 conf &= ~(TX39_CONF_ICE | TX39_CONF_DCE |
95 TX39_CONF_WBON | TX39_CONF_CWFON);
96 conf |= mips_ic_disable ? 0 : TX39_CONF_ICE;
97 conf |= mips_dc_disable ? 0 : TX39_CONF_DCE;
98 conf |= mips_config_wbon ? TX39_CONF_WBON : 0;
99 conf |= mips_config_cwfon ? TX39_CONF_CWFON : 0;
105 /* initialize board */
106 jmr3927_board_init();
108 tx3927_sio_init(0, 1 << 1); /* ch1: noCTS */
109 #ifdef CONFIG_SERIAL_TXX9_CONSOLE
110 argptr = prom_getcmdline();
111 if (!strstr(argptr, "console="))
112 strcat(argptr, " console=ttyS1,115200");
116 static void __init jmr3927_pci_setup(void)
119 int extarb = !(tx3927_ccfgptr->ccfg & TX3927_CCFG_PCIXARB);
120 struct pci_controller *c;
122 c = txx9_alloc_pci_controller(&txx9_primary_pcic,
123 JMR3927_PCIMEM, JMR3927_PCIMEM_SIZE,
124 JMR3927_PCIIO, JMR3927_PCIIO_SIZE);
125 register_pci_controller(c);
128 jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
130 jmr3927_ioc_reg_out(JMR3927_IOC_RESET_PCI,
131 JMR3927_IOC_RESET_ADDR);
133 jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
135 tx3927_pcic_setup(c, JMR3927_SDRAM_SIZE, extarb);
136 tx3927_setup_pcierr_irq();
137 #endif /* CONFIG_PCI */
140 static void __init jmr3927_board_init(void)
142 txx9_cpu_clock = JMR3927_CORECLK;
143 /* SDRAMC are configured by PROM */
146 tx3927_romcptr->cr[1] = JMR3927_ROMCE1 | 0x00030048;
147 tx3927_romcptr->cr[2] = JMR3927_ROMCE2 | 0x000064c8;
148 tx3927_romcptr->cr[3] = JMR3927_ROMCE3 | 0x0003f698;
149 tx3927_romcptr->cr[5] = JMR3927_ROMCE5 | 0x0000f218;
152 tx3927_ccfgptr->pcfg &= ~TX3927_PCFG_SELALL;
153 tx3927_ccfgptr->pcfg |=
154 TX3927_PCFG_SELSIOC(0) | TX3927_PCFG_SELSIO_ALL |
155 (TX3927_PCFG_SELDMA_ALL & ~TX3927_PCFG_SELDMA(1));
159 /* PIO[15:12] connected to LEDs */
160 __raw_writel(0x0000f000, &tx3927_pioptr->dir);
161 gpio_request(11, "dipsw1");
162 gpio_request(10, "dipsw2");
167 jmr3927_ioc_reg_out(0, JMR3927_IOC_DTR_ADDR);
172 "JMR-TX3927 (Rev %d) --- IOC(Rev %d) DIPSW:%d,%d,%d,%d\n",
173 jmr3927_ioc_reg_in(JMR3927_IOC_BREV_ADDR) & JMR3927_REV_MASK,
174 jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR) & JMR3927_REV_MASK,
175 jmr3927_dipsw1(), jmr3927_dipsw2(),
176 jmr3927_dipsw3(), jmr3927_dipsw4());
179 /* This trick makes rtc-ds1742 driver usable as is. */
180 static unsigned long jmr3927_swizzle_addr_b(unsigned long port)
182 if ((port & 0xffff0000) != JMR3927_IOC_NVRAMB_ADDR)
184 port = (port & 0xffff0000) | (port & 0x7fff << 1);
192 static void __init jmr3927_rtc_init(void)
194 static struct resource __initdata res = {
195 .start = JMR3927_IOC_NVRAMB_ADDR - IO_BASE,
196 .end = JMR3927_IOC_NVRAMB_ADDR - IO_BASE + 0x800 - 1,
197 .flags = IORESOURCE_MEM,
199 platform_device_register_simple("rtc-ds1742", -1, &res, 1);
202 static void __init jmr3927_device_init(void)
204 __swizzle_addr_b = jmr3927_swizzle_addr_b;
209 struct txx9_board_vec jmr3927_vec __initdata = {
210 .system = "Toshiba JMR_TX3927",
211 .prom_init = jmr3927_prom_init,
212 .mem_setup = jmr3927_mem_setup,
213 .irq_setup = jmr3927_irq_setup,
214 .time_init = jmr3927_time_init,
215 .device_init = jmr3927_device_init,
217 .pci_map_irq = jmr3927_pci_map_irq,