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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm/mach-sa1100/hackkit.c
downloadconfigs-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2v2.6.12-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!
Diffstat (limited to 'arch/arm/mach-sa1100/hackkit.c')
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1 files changed, 200 insertions, 0 deletions
diff --git a/arch/arm/mach-sa1100/hackkit.c b/arch/arm/mach-sa1100/hackkit.c
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+++ b/arch/arm/mach-sa1100/hackkit.c
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+/*
+ * linux/arch/arm/mach-sa1100/hackkit.c
+ *
+ * Copyright (C) 2002 Stefan Eletzhofer <stefan.eletzhofer@eletztrick.de>
+ *
+ * This file contains all HackKit tweaks. Based on original work from
+ * Nicolas Pitre's assabet fixes
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/tty.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/cpufreq.h>
+#include <linux/serial_core.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/setup.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/irq.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+#include <asm/mach/serial_sa1100.h>
+
+#include "generic.h"
+
+/**********************************************************************
+ * prototypes
+ */
+
+/* init funcs */
+static void __init hackkit_map_io(void);
+
+static u_int hackkit_get_mctrl(struct uart_port *port);
+static void hackkit_set_mctrl(struct uart_port *port, u_int mctrl);
+static void hackkit_uart_pm(struct uart_port *port, u_int state, u_int oldstate);
+
+/**********************************************************************
+ * global data
+ */
+
+/**********************************************************************
+ * static data
+ */
+
+static struct map_desc hackkit_io_desc[] __initdata = {
+ /* virtual physical length type */
+ { 0xe8000000, 0x00000000, 0x01000000, MT_DEVICE } /* Flash bank 0 */
+};
+
+static struct sa1100_port_fns hackkit_port_fns __initdata = {
+ .set_mctrl = hackkit_set_mctrl,
+ .get_mctrl = hackkit_get_mctrl,
+ .pm = hackkit_uart_pm,
+};
+
+/**********************************************************************
+ * Static functions
+ */
+
+static void __init hackkit_map_io(void)
+{
+ sa1100_map_io();
+ iotable_init(hackkit_io_desc, ARRAY_SIZE(hackkit_io_desc));
+
+ sa1100_register_uart_fns(&hackkit_port_fns);
+ sa1100_register_uart(0, 1); /* com port */
+ sa1100_register_uart(1, 2);
+ sa1100_register_uart(2, 3); /* radio module */
+
+ Ser1SDCR0 |= SDCR0_SUS;
+}
+
+/**
+ * hackkit_uart_pm - powermgmt callback function for system 3 UART
+ * @port: uart port structure
+ * @state: pm state
+ * @oldstate: old pm state
+ *
+ */
+static void hackkit_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
+{
+ /* TODO: switch on/off uart in powersave mode */
+}
+
+/*
+ * Note! this can be called from IRQ context.
+ * FIXME: No modem ctrl lines yet.
+ */
+static void hackkit_set_mctrl(struct uart_port *port, u_int mctrl)
+{
+#if 0
+ if (port->mapbase == _Ser1UTCR0) {
+ u_int set = 0, clear = 0;
+
+ if (mctrl & TIOCM_RTS)
+ set |= PT_CTRL2_RS1_RTS;
+ else
+ clear |= PT_CTRL2_RS1_RTS;
+
+ if (mctrl & TIOCM_DTR)
+ set |= PT_CTRL2_RS1_DTR;
+ else
+ clear |= PT_CTRL2_RS1_DTR;
+
+ PTCTRL2_clear(clear);
+ PTCTRL2_set(set);
+ }
+#endif
+}
+
+static u_int hackkit_get_mctrl(struct uart_port *port)
+{
+ u_int ret = 0;
+#if 0
+ u_int irqsr = PT_IRQSR;
+
+ /* need 2 reads to read current value */
+ irqsr = PT_IRQSR;
+
+ /* TODO: check IRQ source register for modem/com
+ status lines and set them correctly. */
+#endif
+
+ ret = TIOCM_CD | TIOCM_CTS | TIOCM_DSR;
+
+ return ret;
+}
+
+static struct mtd_partition hackkit_partitions[] = {
+ {
+ .name = "BLOB",
+ .size = 0x00040000,
+ .offset = 0x00000000,
+ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ }, {
+ .name = "config",
+ .size = 0x00040000,
+ .offset = MTDPART_OFS_APPEND,
+ }, {
+ .name = "kernel",
+ .size = 0x00100000,
+ .offset = MTDPART_OFS_APPEND,
+ }, {
+ .name = "initrd",
+ .size = 0x00180000,
+ .offset = MTDPART_OFS_APPEND,
+ }, {
+ .name = "rootfs",
+ .size = 0x700000,
+ .offset = MTDPART_OFS_APPEND,
+ }, {
+ .name = "data",
+ .size = MTDPART_SIZ_FULL,
+ .offset = MTDPART_OFS_APPEND,
+ }
+};
+
+static struct flash_platform_data hackkit_flash_data = {
+ .map_name = "cfi_probe",
+ .parts = hackkit_partitions,
+ .nr_parts = ARRAY_SIZE(hackkit_partitions),
+};
+
+static struct resource hackkit_flash_resource = {
+ .start = SA1100_CS0_PHYS,
+ .end = SA1100_CS0_PHYS + SZ_32M,
+ .flags = IORESOURCE_MEM,
+};
+
+static void __init hackkit_init(void)
+{
+ sa11x0_set_flash_data(&hackkit_flash_data, &hackkit_flash_resource, 1);
+}
+
+/**********************************************************************
+ * Exported Functions
+ */
+
+MACHINE_START(HACKKIT, "HackKit Cpu Board")
+ BOOT_MEM(0xc0000000, 0x80000000, 0xf8000000)
+ BOOT_PARAMS(0xc0000100)
+ MAPIO(hackkit_map_io)
+ INITIRQ(sa1100_init_irq)
+ .timer = &sa1100_timer,
+ .init_machine = hackkit_init,
+MACHINE_END