patch-2.4.22 linux-2.4.22/arch/arm/mach-sa1100/cep.c
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- Lines: 124
- Date:
2003-08-25 04:44:39.000000000 -0700
- Orig file:
linux-2.4.21/arch/arm/mach-sa1100/cep.c
- Orig date:
1969-12-31 16:00:00.000000000 -0800
diff -urN linux-2.4.21/arch/arm/mach-sa1100/cep.c linux-2.4.22/arch/arm/mach-sa1100/cep.c
@@ -0,0 +1,123 @@
+/*
+ * linux/arch/arm/mach-sa1100/cep.c
+ *
+ * Author: Matthias Gorjup
+ *
+ * This file contains all Cep - specific tweaks.
+ *
+ * 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/config.h>
+#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/serial_core.h>
+
+#include <asm/hardware.h>
+#include <asm/setup.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/serial_sa1100.h>
+
+#include "generic.h"
+
+
+extern void convert_to_tag_list(struct param_struct *params, int mem_init);
+
+static void __init
+fixup_cep(struct machine_desc *desc, struct param_struct *params,
+ char **cmdline, struct meminfo *mi)
+{
+ struct tag *t = (struct tag *)params;
+
+
+ /*
+ * Apparantly bootldr uses a param_struct. Groan.
+ */
+ if (t->hdr.tag != ATAG_CORE)
+ convert_to_tag_list(params, 1);
+
+ if (t->hdr.tag != ATAG_CORE) {
+ t->hdr.tag = ATAG_CORE;
+ t->hdr.size = tag_size(tag_core);
+ t->u.core.flags = 0;
+ t->u.core.pagesize = PAGE_SIZE;
+ t->u.core.rootdev = RAMDISK_MAJOR << 8 | 0;
+ t = tag_next(t);
+
+ t->hdr.tag = ATAG_MEM;
+ t->hdr.size = tag_size(tag_mem32);
+ t->u.mem.start = 0xc0000000;
+ t->u.mem.size = 32 * 1024 * 1024;
+ t = tag_next(t);
+
+
+ t->hdr.tag = ATAG_RAMDISK;
+ t->hdr.size = tag_size(tag_ramdisk);
+ t->u.ramdisk.flags = 1;
+ t->u.ramdisk.size = 8192;
+ t->u.ramdisk.start = 0;
+ t = tag_next(t);
+
+ t->hdr.tag = ATAG_INITRD;
+ t->hdr.size = tag_size(tag_initrd);
+ t->u.initrd.start = 0xc0800000;
+ t->u.initrd.size = 3 * 1024 * 1024;
+ t = tag_next(t);
+
+ t->hdr.tag = ATAG_NONE;
+ t->hdr.size = 0;
+ }
+}
+
+
+static struct map_desc cep_io_desc[] __initdata = {
+ /* virtual physical length domain r w c b */
+ { 0xe8000000, 0x00000000, 0x02000000, DOMAIN_IO, 0, 1, 0, 0 }, /* Flash bank 0 */
+ LAST_DESC
+};
+
+static void __init cep_map_io(void)
+{
+
+ sa1100_map_io();
+ iotable_init(cep_io_desc);
+
+ sa1100_register_uart(0, 1); /* com port */
+ sa1100_register_uart(2, 3); /* radio module */
+
+ /*
+ * Ensure that these pins are set as outputs and are driving
+ * logic 0. This ensures that we won't inadvertently toggle
+ * the WS latch in the CPLD, and we don't float causing
+ * excessive power drain. --rmk
+ */
+ GPDR |= GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM;
+ GPCR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM;
+
+ /*
+ * Set up registers for sleep mode.
+ */
+ PWER = PWER_GPIO0;
+ PGSR = 0;
+ PCFR = 0;
+ PSDR = 0;
+}
+
+
+MACHINE_START(CEP, "Iskratel Cep")
+ BOOT_MEM(0xc0000000, 0x80000000, 0xf8000000)
+ BOOT_PARAMS(0xc0000100)
+ FIXUP(fixup_cep)
+ MAPIO(cep_map_io)
+ INITIRQ(sa1100_init_irq)
+MACHINE_END
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