Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 510 insertions, 0 deletions

diff --git a/arch/mips/jmr3927/rbhma3100/setup.c b/arch/mips/jmr3927/rbhma3100/setup.c
new file mode 100644
index 000000000000..32039bb2f440
--- /dev/null
+++ b/arch/mips/jmr3927/rbhma3100/setup.c
@@ -0,0 +1,510 @@
+/***********************************************************************
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ *              ahennessy@mvista.com
+ *
+ * Based on arch/mips/ddb5xxx/ddb5477/setup.c
+ *
+ *     Setup file for JMR3927.
+ *
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ ***********************************************************************
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/kdev_t.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/ide.h>
+#include <linux/ioport.h>
+#include <linux/param.h>	/* for HZ */
+#include <linux/delay.h>
+
+#include <asm/addrspace.h>
+#include <asm/time.h>
+#include <asm/bcache.h>
+#include <asm/irq.h>
+#include <asm/reboot.h>
+#include <asm/gdb-stub.h>
+#include <asm/jmr3927/jmr3927.h>
+#include <asm/mipsregs.h>
+#include <asm/traps.h>
+
+/* Tick Timer divider */
+#define JMR3927_TIMER_CCD	0	/* 1/2 */
+#define JMR3927_TIMER_CLK	(JMR3927_IMCLK / (2 << JMR3927_TIMER_CCD))
+
+unsigned char led_state = 0xf;
+
+struct {
+    struct resource ram0;
+    struct resource ram1;
+    struct resource pcimem;
+    struct resource iob;
+    struct resource ioc;
+    struct resource pciio;
+    struct resource jmy1394;
+    struct resource rom1;
+    struct resource rom0;
+    struct resource sio0;
+    struct resource sio1;
+} jmr3927_resources = {
+    { "RAM0",           0,         0x01FFFFFF,  IORESOURCE_MEM },
+    { "RAM1",          0x02000000, 0x03FFFFFF,  IORESOURCE_MEM },
+    { "PCIMEM",        0x08000000, 0x07FFFFFF,  IORESOURCE_MEM },
+    { "IOB",           0x10000000, 0x13FFFFFF                  },
+    { "IOC",           0x14000000, 0x14FFFFFF                  },
+    { "PCIIO",         0x15000000, 0x15FFFFFF                  },
+    { "JMY1394",       0x1D000000, 0x1D3FFFFF                  },
+    { "ROM1",          0x1E000000, 0x1E3FFFFF                  },
+    { "ROM0",          0x1FC00000, 0x1FFFFFFF                  },
+    { "SIO0",          0xFFFEF300, 0xFFFEF3FF                  },
+    { "SIO1",          0xFFFEF400, 0xFFFEF4FF                  },
+};
+
+/* don't enable - see errata */
+int jmr3927_ccfg_toeon = 0;
+
+static inline void do_reset(void)
+{
+#ifdef CONFIG_TC35815
+	extern void tc35815_killall(void);
+	tc35815_killall();
+#endif
+#if 1	/* Resetting PCI bus */
+	jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+	jmr3927_ioc_reg_out(JMR3927_IOC_RESET_PCI, JMR3927_IOC_RESET_ADDR);
+	(void)jmr3927_ioc_reg_in(JMR3927_IOC_RESET_ADDR);	/* flush WB */
+	mdelay(1);
+	jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+#endif
+	jmr3927_ioc_reg_out(JMR3927_IOC_RESET_CPU, JMR3927_IOC_RESET_ADDR);
+}
+
+static void jmr3927_machine_restart(char *command)
+{
+	local_irq_disable();
+	puts("Rebooting...");
+	do_reset();
+}
+
+static void jmr3927_machine_halt(void)
+{
+	puts("JMR-TX3927 halted.\n");
+	while (1);
+}
+
+static void jmr3927_machine_power_off(void)
+{
+	puts("JMR-TX3927 halted. Please turn off the power.\n");
+	while (1);
+}
+
+#define USE_RTC_DS1742
+#ifdef USE_RTC_DS1742
+extern void rtc_ds1742_init(unsigned long base);
+#endif
+static void __init jmr3927_time_init(void)
+{
+#ifdef USE_RTC_DS1742
+	if (jmr3927_have_nvram()) {
+	        rtc_ds1742_init(JMR3927_IOC_NVRAMB_ADDR);
+	}
+#endif
+}
+
+unsigned long jmr3927_do_gettimeoffset(void);
+extern int setup_irq(unsigned int irq, struct irqaction *irqaction);
+
+static void __init jmr3927_timer_setup(struct irqaction *irq)
+{
+	do_gettimeoffset = jmr3927_do_gettimeoffset;
+
+	jmr3927_tmrptr->cpra = JMR3927_TIMER_CLK / HZ;
+	jmr3927_tmrptr->itmr = TXx927_TMTITMR_TIIE | TXx927_TMTITMR_TZCE;
+	jmr3927_tmrptr->ccdr = JMR3927_TIMER_CCD;
+	jmr3927_tmrptr->tcr =
+		TXx927_TMTCR_TCE | TXx927_TMTCR_CCDE | TXx927_TMTCR_TMODE_ITVL;
+
+	setup_irq(JMR3927_IRQ_TICK, irq);
+}
+
+#define USECS_PER_JIFFY (1000000/HZ)
+
+unsigned long jmr3927_do_gettimeoffset(void)
+{
+       unsigned long count;
+       unsigned long res = 0;
+
+       /* MUST read TRR before TISR. */
+       count = jmr3927_tmrptr->trr;
+
+       if (jmr3927_tmrptr->tisr & TXx927_TMTISR_TIIS) {
+               /* timer interrupt is pending.  use Max value. */
+               res = USECS_PER_JIFFY - 1;
+       } else {
+               /* convert to usec */
+               /* res = count / (JMR3927_TIMER_CLK / 1000000); */
+               res = (count << 7) / ((JMR3927_TIMER_CLK << 7) / 1000000);
+
+               /*
+                * Due to possible jiffies inconsistencies, we need to check
+                * the result so that we'll get a timer that is monotonic.
+                */
+               if (res >= USECS_PER_JIFFY)
+                       res = USECS_PER_JIFFY-1;
+       }
+
+       return res;
+}
+
+
+//#undef DO_WRITE_THROUGH
+#define DO_WRITE_THROUGH
+#define DO_ENABLE_CACHE
+
+extern char * __init prom_getcmdline(void);
+static void jmr3927_board_init(void);
+extern struct resource pci_io_resource;
+extern struct resource pci_mem_resource;
+
+static void __init jmr3927_setup(void)
+{
+	char *argptr;
+
+	set_io_port_base(JMR3927_PORT_BASE + JMR3927_PCIIO);
+
+	board_time_init = jmr3927_time_init;
+	board_timer_setup = jmr3927_timer_setup;
+
+	_machine_restart = jmr3927_machine_restart;
+	_machine_halt = jmr3927_machine_halt;
+	_machine_power_off = jmr3927_machine_power_off;
+
+	/*
+	 * IO/MEM resources.
+	 */
+	ioport_resource.start = pci_io_resource.start;
+	ioport_resource.end = pci_io_resource.end;
+	iomem_resource.start = pci_mem_resource.start;
+	iomem_resource.end = pci_mem_resource.end;
+
+	/* Reboot on panic */
+	panic_timeout = 180;
+
+	{
+		unsigned int conf;
+		conf = read_c0_conf();
+	}
+
+#if 1
+	/* cache setup */
+	{
+		unsigned int conf;
+#ifdef DO_ENABLE_CACHE
+		int mips_ic_disable = 0, mips_dc_disable = 0;
+#else
+		int mips_ic_disable = 1, mips_dc_disable = 1;
+#endif
+#ifdef DO_WRITE_THROUGH
+		int mips_config_cwfon = 0;
+		int mips_config_wbon = 0;
+#else
+		int mips_config_cwfon = 1;
+		int mips_config_wbon = 1;
+#endif
+
+		conf = read_c0_conf();
+		conf &= ~(TX39_CONF_ICE | TX39_CONF_DCE | TX39_CONF_WBON | TX39_CONF_CWFON);
+		conf |= mips_ic_disable ? 0 : TX39_CONF_ICE;
+		conf |= mips_dc_disable ? 0 : TX39_CONF_DCE;
+		conf |= mips_config_wbon ? TX39_CONF_WBON : 0;
+		conf |= mips_config_cwfon ? TX39_CONF_CWFON : 0;
+
+		write_c0_conf(conf);
+		write_c0_cache(0);
+	}
+#endif
+
+	/* initialize board */
+	jmr3927_board_init();
+
+	argptr = prom_getcmdline();
+
+	if ((argptr = strstr(argptr, "toeon")) != NULL) {
+			jmr3927_ccfg_toeon = 1;
+	}
+	argptr = prom_getcmdline();
+	if ((argptr = strstr(argptr, "ip=")) == NULL) {
+		argptr = prom_getcmdline();
+		strcat(argptr, " ip=bootp");
+	}
+
+#ifdef CONFIG_TXX927_SERIAL_CONSOLE
+	argptr = prom_getcmdline();
+	if ((argptr = strstr(argptr, "console=")) == NULL) {
+		argptr = prom_getcmdline();
+		strcat(argptr, " console=ttyS1,115200");
+	}
+#endif
+}
+
+early_initcall(jmr3927_setup);
+
+
+static void tx3927_setup(void);
+
+#ifdef CONFIG_PCI
+unsigned long mips_pci_io_base;
+unsigned long mips_pci_io_size;
+unsigned long mips_pci_mem_base;
+unsigned long mips_pci_mem_size;
+/* for legacy I/O, PCI I/O PCI Bus address must be 0 */
+unsigned long mips_pci_io_pciaddr = 0;
+#endif
+
+static void __init jmr3927_board_init(void)
+{
+	char *argptr;
+
+#ifdef CONFIG_PCI
+	mips_pci_io_base = JMR3927_PCIIO;
+	mips_pci_io_size = JMR3927_PCIIO_SIZE;
+	mips_pci_mem_base = JMR3927_PCIMEM;
+	mips_pci_mem_size = JMR3927_PCIMEM_SIZE;
+#endif
+
+	tx3927_setup();
+
+	if (jmr3927_have_isac()) {
+
+#ifdef CONFIG_FB_E1355
+		argptr = prom_getcmdline();
+		if ((argptr = strstr(argptr, "video=")) == NULL) {
+			argptr = prom_getcmdline();
+			strcat(argptr, " video=e1355fb:crt16h");
+		}
+#endif
+
+#ifdef CONFIG_BLK_DEV_IDE
+		/* overrides PCI-IDE */
+#endif
+	}
+
+	/* SIO0 DTR on */
+	jmr3927_ioc_reg_out(0, JMR3927_IOC_DTR_ADDR);
+
+	jmr3927_led_set(0);
+
+
+	if (jmr3927_have_isac())
+		jmr3927_io_led_set(0);
+	printk("JMR-TX3927 (Rev %d) --- IOC(Rev %d) DIPSW:%d,%d,%d,%d\n",
+	       jmr3927_ioc_reg_in(JMR3927_IOC_BREV_ADDR) & JMR3927_REV_MASK,
+	       jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR) & JMR3927_REV_MASK,
+	       jmr3927_dipsw1(), jmr3927_dipsw2(),
+	       jmr3927_dipsw3(), jmr3927_dipsw4());
+	if (jmr3927_have_isac())
+		printk("JMI-3927IO2 --- ISAC(Rev %d) DIPSW:%01x\n",
+		       jmr3927_isac_reg_in(JMR3927_ISAC_REV_ADDR) & JMR3927_REV_MASK,
+		       jmr3927_io_dipsw());
+}
+
+static void __init tx3927_setup(void)
+{
+	int i;
+
+	/* SDRAMC are configured by PROM */
+
+	/* ROMC */
+	tx3927_romcptr->cr[1] = JMR3927_ROMCE1 | 0x00030048;
+	tx3927_romcptr->cr[2] = JMR3927_ROMCE2 | 0x000064c8;
+	tx3927_romcptr->cr[3] = JMR3927_ROMCE3 | 0x0003f698;
+	tx3927_romcptr->cr[5] = JMR3927_ROMCE5 | 0x0000f218;
+
+	/* CCFG */
+	/* enable Timeout BusError */
+	if (jmr3927_ccfg_toeon)
+		tx3927_ccfgptr->ccfg |= TX3927_CCFG_TOE;
+
+	/* clear BusErrorOnWrite flag */
+	tx3927_ccfgptr->ccfg &= ~TX3927_CCFG_BEOW;
+	/* Disable PCI snoop */
+	tx3927_ccfgptr->ccfg &= ~TX3927_CCFG_PSNP;
+
+#ifdef DO_WRITE_THROUGH
+	/* Enable PCI SNOOP - with write through only */
+	tx3927_ccfgptr->ccfg |= TX3927_CCFG_PSNP;
+#endif
+
+	/* Pin selection */
+	tx3927_ccfgptr->pcfg &= ~TX3927_PCFG_SELALL;
+	tx3927_ccfgptr->pcfg |=
+		TX3927_PCFG_SELSIOC(0) | TX3927_PCFG_SELSIO_ALL |
+		(TX3927_PCFG_SELDMA_ALL & ~TX3927_PCFG_SELDMA(1));
+
+	printk("TX3927 -- CRIR:%08lx CCFG:%08lx PCFG:%08lx\n",
+	       tx3927_ccfgptr->crir,
+	       tx3927_ccfgptr->ccfg, tx3927_ccfgptr->pcfg);
+
+	/* IRC */
+	/* disable interrupt control */
+	tx3927_ircptr->cer = 0;
+	/* mask all IRC interrupts */
+	tx3927_ircptr->imr = 0;
+	for (i = 0; i < TX3927_NUM_IR / 2; i++) {
+		tx3927_ircptr->ilr[i] = 0;
+	}
+	/* setup IRC interrupt mode (Low Active) */
+	for (i = 0; i < TX3927_NUM_IR / 8; i++) {
+		tx3927_ircptr->cr[i] = 0;
+	}
+
+	/* TMR */
+	/* disable all timers */
+	for (i = 0; i < TX3927_NR_TMR; i++) {
+		tx3927_tmrptr(i)->tcr = TXx927_TMTCR_CRE;
+		tx3927_tmrptr(i)->tisr = 0;
+		tx3927_tmrptr(i)->cpra = 0xffffffff;
+		tx3927_tmrptr(i)->itmr = 0;
+		tx3927_tmrptr(i)->ccdr = 0;
+		tx3927_tmrptr(i)->pgmr = 0;
+	}
+
+	/* DMA */
+	tx3927_dmaptr->mcr = 0;
+	for (i = 0; i < sizeof(tx3927_dmaptr->ch) / sizeof(tx3927_dmaptr->ch[0]); i++) {
+		/* reset channel */
+		tx3927_dmaptr->ch[i].ccr = TX3927_DMA_CCR_CHRST;
+		tx3927_dmaptr->ch[i].ccr = 0;
+	}
+	/* enable DMA */
+#ifdef __BIG_ENDIAN
+	tx3927_dmaptr->mcr = TX3927_DMA_MCR_MSTEN;
+#else
+	tx3927_dmaptr->mcr = TX3927_DMA_MCR_MSTEN | TX3927_DMA_MCR_LE;
+#endif
+
+#ifdef CONFIG_PCI
+	/* PCIC */
+	printk("TX3927 PCIC -- DID:%04x VID:%04x RID:%02x Arbiter:",
+	       tx3927_pcicptr->did, tx3927_pcicptr->vid,
+	       tx3927_pcicptr->rid);
+	if (!(tx3927_ccfgptr->ccfg & TX3927_CCFG_PCIXARB)) {
+		printk("External\n");
+		/* XXX */
+	} else {
+		printk("Internal\n");
+
+		/* Reset PCI Bus */
+		jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+		udelay(100);
+		jmr3927_ioc_reg_out(JMR3927_IOC_RESET_PCI,
+				    JMR3927_IOC_RESET_ADDR);
+		udelay(100);
+		jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+
+
+		/* Disable External PCI Config. Access */
+		tx3927_pcicptr->lbc = TX3927_PCIC_LBC_EPCAD;
+#ifdef __BIG_ENDIAN
+		tx3927_pcicptr->lbc |= TX3927_PCIC_LBC_IBSE |
+			TX3927_PCIC_LBC_TIBSE |
+			TX3927_PCIC_LBC_TMFBSE | TX3927_PCIC_LBC_MSDSE;
+#endif
+		/* LB->PCI mappings */
+		tx3927_pcicptr->iomas = ~(mips_pci_io_size - 1);
+		tx3927_pcicptr->ilbioma = mips_pci_io_base;
+		tx3927_pcicptr->ipbioma = mips_pci_io_pciaddr;
+		tx3927_pcicptr->mmas = ~(mips_pci_mem_size - 1);
+		tx3927_pcicptr->ilbmma = mips_pci_mem_base;
+		tx3927_pcicptr->ipbmma = mips_pci_mem_base;
+		/* PCI->LB mappings */
+		tx3927_pcicptr->iobas = 0xffffffff;
+		tx3927_pcicptr->ioba = 0;
+		tx3927_pcicptr->tlbioma = 0;
+		tx3927_pcicptr->mbas = ~(mips_pci_mem_size - 1);
+		tx3927_pcicptr->mba = 0;
+		tx3927_pcicptr->tlbmma = 0;
+#ifndef JMR3927_INIT_INDIRECT_PCI
+		/* Enable Direct mapping Address Space Decoder */
+		tx3927_pcicptr->lbc |= TX3927_PCIC_LBC_ILMDE | TX3927_PCIC_LBC_ILIDE;
+#endif
+
+		/* Clear All Local Bus Status */
+		tx3927_pcicptr->lbstat = TX3927_PCIC_LBIM_ALL;
+		/* Enable All Local Bus Interrupts */
+		tx3927_pcicptr->lbim = TX3927_PCIC_LBIM_ALL;
+		/* Clear All PCI Status Error */
+		tx3927_pcicptr->pcistat = TX3927_PCIC_PCISTATIM_ALL;
+		/* Enable All PCI Status Error Interrupts */
+		tx3927_pcicptr->pcistatim = TX3927_PCIC_PCISTATIM_ALL;
+
+		/* PCIC Int => IRC IRQ10 */
+		tx3927_pcicptr->il = TX3927_IR_PCI;
+#if 1
+		/* Target Control (per errata) */
+		tx3927_pcicptr->tc = TX3927_PCIC_TC_OF8E | TX3927_PCIC_TC_IF8E;
+#endif
+
+		/* Enable Bus Arbiter */
+#if 0
+		tx3927_pcicptr->req_trace = 0x73737373;
+#endif
+		tx3927_pcicptr->pbapmc = TX3927_PCIC_PBAPMC_PBAEN;
+
+		tx3927_pcicptr->pcicmd = PCI_COMMAND_MASTER |
+			PCI_COMMAND_MEMORY |
+#if 1
+			PCI_COMMAND_IO |
+#endif
+			PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
+	}
+#endif /* CONFIG_PCI */
+
+	/* PIO */
+	/* PIO[15:12] connected to LEDs */
+	tx3927_pioptr->dir = 0x0000f000;
+	tx3927_pioptr->maskcpu = 0;
+	tx3927_pioptr->maskext = 0;
+	{
+		unsigned int conf;
+
+	conf = read_c0_conf();
+               if (!(conf & TX39_CONF_ICE))
+                       printk("TX3927 I-Cache disabled.\n");
+               if (!(conf & TX39_CONF_DCE))
+                       printk("TX3927 D-Cache disabled.\n");
+               else if (!(conf & TX39_CONF_WBON))
+                       printk("TX3927 D-Cache WriteThrough.\n");
+               else if (!(conf & TX39_CONF_CWFON))
+                       printk("TX3927 D-Cache WriteBack.\n");
+               else
+                       printk("TX3927 D-Cache WriteBack (CWF) .\n");
+	}
+}