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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-rpc/riscpc.c
downloadlinux-stericsson-2.6.12-rc2.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-rpc/riscpc.c')
-rw-r--r--arch/arm/mach-rpc/riscpc.c179
1 files changed, 179 insertions, 0 deletions
diff --git a/arch/arm/mach-rpc/riscpc.c b/arch/arm/mach-rpc/riscpc.c
new file mode 100644
index 000000000000..815c53225cd8
--- /dev/null
+++ b/arch/arm/mach-rpc/riscpc.c
@@ -0,0 +1,179 @@
+/*
+ * linux/arch/arm/mach-rpc/riscpc.c
+ *
+ * Copyright (C) 1998-2001 Russell King
+ *
+ * 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.
+ *
+ * Architecture specific fixups.
+ */
+#include <linux/kernel.h>
+#include <linux/tty.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/device.h>
+#include <linux/serial_8250.h>
+
+#include <asm/elf.h>
+#include <asm/io.h>
+#include <asm/mach-types.h>
+#include <asm/hardware.h>
+#include <asm/page.h>
+#include <asm/domain.h>
+#include <asm/setup.h>
+
+#include <asm/mach/map.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+
+extern void rpc_init_irq(void);
+
+extern unsigned int vram_size;
+
+#if 0
+
+unsigned int memc_ctrl_reg;
+unsigned int number_mfm_drives;
+
+static int __init parse_tag_acorn(const struct tag *tag)
+{
+ memc_ctrl_reg = tag->u.acorn.memc_control_reg;
+ number_mfm_drives = tag->u.acorn.adfsdrives;
+
+ switch (tag->u.acorn.vram_pages) {
+ case 512:
+ vram_size += PAGE_SIZE * 256;
+ case 256:
+ vram_size += PAGE_SIZE * 256;
+ default:
+ break;
+ }
+#if 0
+ if (vram_size) {
+ desc->video_start = 0x02000000;
+ desc->video_end = 0x02000000 + vram_size;
+ }
+#endif
+ return 0;
+}
+
+__tagtable(ATAG_ACORN, parse_tag_acorn);
+
+#endif
+
+static struct map_desc rpc_io_desc[] __initdata = {
+ { SCREEN_BASE, SCREEN_START, 2*1048576, MT_DEVICE }, /* VRAM */
+ { (u32)IO_BASE, IO_START, IO_SIZE , MT_DEVICE }, /* IO space */
+ { EASI_BASE, EASI_START, EASI_SIZE, MT_DEVICE } /* EASI space */
+};
+
+static void __init rpc_map_io(void)
+{
+ iotable_init(rpc_io_desc, ARRAY_SIZE(rpc_io_desc));
+
+ /*
+ * Turn off floppy.
+ */
+ outb(0xc, 0x3f2);
+
+ /*
+ * RiscPC can't handle half-word loads and stores
+ */
+ elf_hwcap &= ~HWCAP_HALF;
+}
+
+static struct resource acornfb_resources[] = {
+ { /* VIDC */
+ .start = 0x03400000,
+ .end = 0x035fffff,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = IRQ_VSYNCPULSE,
+ .end = IRQ_VSYNCPULSE,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device acornfb_device = {
+ .name = "acornfb",
+ .id = -1,
+ .dev = {
+ .coherent_dma_mask = 0xffffffff,
+ },
+ .num_resources = ARRAY_SIZE(acornfb_resources),
+ .resource = acornfb_resources,
+};
+
+static struct resource iomd_resources[] = {
+ {
+ .start = 0x03200000,
+ .end = 0x0320ffff,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device iomd_device = {
+ .name = "iomd",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(iomd_resources),
+ .resource = iomd_resources,
+};
+
+static struct platform_device kbd_device = {
+ .name = "kart",
+ .id = -1,
+ .dev = {
+ .parent = &iomd_device.dev,
+ },
+};
+
+static struct plat_serial8250_port serial_platform_data[] = {
+ {
+ .mapbase = 0x03010fe0,
+ .irq = 10,
+ .uartclk = 1843200,
+ .regshift = 2,
+ .iotype = UPIO_MEM,
+ .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SKIP_TEST,
+ },
+ { },
+};
+
+static struct platform_device serial_device = {
+ .name = "serial8250",
+ .id = 0,
+ .dev = {
+ .platform_data = serial_platform_data,
+ },
+};
+
+static struct platform_device *devs[] __initdata = {
+ &iomd_device,
+ &kbd_device,
+ &serial_device,
+ &acornfb_device,
+};
+
+static int __init rpc_init(void)
+{
+ return platform_add_devices(devs, ARRAY_SIZE(devs));
+}
+
+arch_initcall(rpc_init);
+
+extern struct sys_timer ioc_timer;
+
+MACHINE_START(RISCPC, "Acorn-RiscPC")
+ MAINTAINER("Russell King")
+ BOOT_MEM(0x10000000, 0x03000000, 0xe0000000)
+ BOOT_PARAMS(0x10000100)
+ DISABLE_PARPORT(0)
+ DISABLE_PARPORT(1)
+ MAPIO(rpc_map_io)
+ INITIRQ(rpc_init_irq)
+ .timer = &ioc_timer,
+MACHINE_END