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!
diff --git a/arch/mips/sgi-ip32/ip32-setup.c b/arch/mips/sgi-ip32/ip32-setup.c
new file mode 100644
index 0000000..8d270be
--- /dev/null
+++ b/arch/mips/sgi-ip32/ip32-setup.c
@@ -0,0 +1,159 @@
+/*
+ * IP32 basic setup
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2000 Harald Koerfgen
+ * Copyright (C) 2002, 2003, 2005 Ilya A. Volynets
+ */
+#include <linux/config.h>
+#include <linux/console.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/mc146818rtc.h>
+#include <linux/param.h>
+#include <linux/sched.h>
+
+#include <asm/bootinfo.h>
+#include <asm/mc146818-time.h>
+#include <asm/mipsregs.h>
+#include <asm/mmu_context.h>
+#include <asm/sgialib.h>
+#include <asm/time.h>
+#include <asm/traps.h>
+#include <asm/io.h>
+#include <asm/ip32/crime.h>
+#include <asm/ip32/mace.h>
+#include <asm/ip32/ip32_ints.h>
+
+extern void ip32_be_init(void);
+extern void crime_init(void);
+
+#ifdef CONFIG_SGI_O2MACE_ETH
+/*
+ * This is taken care of in here 'cause they say using Arc later on is
+ * problematic
+ */
+extern char o2meth_eaddr[8];
+static inline unsigned char str2hexnum(unsigned char c)
+{
+ if (c >= '0' && c <= '9')
+ return c - '0';
+ if (c >= 'a' && c <= 'f')
+ return c - 'a' + 10;
+ return 0; /* foo */
+}
+
+static inline void str2eaddr(unsigned char *ea, unsigned char *str)
+{
+ int i;
+
+ for (i = 0; i < 6; i++) {
+ unsigned char num;
+
+ if(*str == ':')
+ str++;
+ num = str2hexnum(*str++) << 4;
+ num |= (str2hexnum(*str++));
+ ea[i] = num;
+ }
+}
+#endif
+
+#ifdef CONFIG_SERIAL_8250
+#include <linux/tty.h>
+#include <linux/serial.h>
+#include <linux/serial_core.h>
+extern int early_serial_setup(struct uart_port *port);
+
+#define STD_COM_FLAGS (ASYNC_SKIP_TEST)
+#define BASE_BAUD (1843200 / 16)
+
+#endif /* CONFIG_SERIAL_8250 */
+
+/* An arbitrary time; this can be decreased if reliability looks good */
+#define WAIT_MS 10
+
+void __init ip32_time_init(void)
+{
+ printk(KERN_INFO "Calibrating system timer... ");
+ write_c0_count(0);
+ crime->timer = 0;
+ while (crime->timer < CRIME_MASTER_FREQ * WAIT_MS / 1000) ;
+ mips_hpt_frequency = read_c0_count() * 1000 / WAIT_MS;
+ printk("%d MHz CPU detected\n", mips_hpt_frequency * 2 / 1000000);
+}
+
+void __init ip32_timer_setup(struct irqaction *irq)
+{
+ irq->handler = no_action;
+ setup_irq(IP32_R4K_TIMER_IRQ, irq);
+}
+
+static int __init ip32_setup(void)
+{
+ board_be_init = ip32_be_init;
+
+ rtc_get_time = mc146818_get_cmos_time;
+ rtc_set_mmss = mc146818_set_rtc_mmss;
+
+ board_time_init = ip32_time_init;
+ board_timer_setup = ip32_timer_setup;
+
+#ifdef CONFIG_SERIAL_8250
+ {
+ static struct uart_port o2_serial[2];
+
+ memset(o2_serial, 0, sizeof(o2_serial));
+ o2_serial[0].type = PORT_16550A;
+ o2_serial[0].line = 0;
+ o2_serial[0].irq = MACEISA_SERIAL1_IRQ;
+ o2_serial[0].flags = STD_COM_FLAGS;
+ o2_serial[0].uartclk = BASE_BAUD * 16;
+ o2_serial[0].iotype = UPIO_MEM;
+ o2_serial[0].membase = (char *)&mace->isa.serial1;
+ o2_serial[0].fifosize = 14;
+ /* How much to shift register offset by. Each UART register
+ * is replicated over 256 byte space */
+ o2_serial[0].regshift = 8;
+ o2_serial[1].type = PORT_16550A;
+ o2_serial[1].line = 1;
+ o2_serial[1].irq = MACEISA_SERIAL2_IRQ;
+ o2_serial[1].flags = STD_COM_FLAGS;
+ o2_serial[1].uartclk = BASE_BAUD * 16;
+ o2_serial[1].iotype = UPIO_MEM;
+ o2_serial[1].membase = (char *)&mace->isa.serial2;
+ o2_serial[1].fifosize = 14;
+ o2_serial[1].regshift = 8;
+
+ early_serial_setup(&o2_serial[0]);
+ early_serial_setup(&o2_serial[1]);
+ }
+#endif
+#ifdef CONFIG_SGI_O2MACE_ETH
+ {
+ char *mac = ArcGetEnvironmentVariable("eaddr");
+ str2eaddr(o2meth_eaddr, mac);
+ }
+#endif
+
+#if defined(CONFIG_SERIAL_CORE_CONSOLE)
+ {
+ char* con = ArcGetEnvironmentVariable("console");
+ if (con && *con == 'd') {
+ static char options[8];
+ char *baud = ArcGetEnvironmentVariable("dbaud");
+ if (baud)
+ strcpy(options, baud);
+ add_preferred_console("ttyS", *(con + 1) == '2' ? 1 : 0,
+ baud ? options : NULL);
+ }
+ }
+#endif
+
+ return 0;
+}
+
+early_initcall(ip32_setup);