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Diffstat (limited to 'arch/arm/mach-davinci/id.c')
-rw-r--r--arch/arm/mach-davinci/id.c116
1 files changed, 0 insertions, 116 deletions
diff --git a/arch/arm/mach-davinci/id.c b/arch/arm/mach-davinci/id.c
deleted file mode 100644
index 018b994cd79..00000000000
--- a/arch/arm/mach-davinci/id.c
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- * Davinci CPU identification code
- *
- * Copyright (C) 2006 Komal Shah <komal_shah802003@yahoo.com>
- *
- * Derived from OMAP1 CPU identification code.
- *
- * 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/module.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/io.h>
-
-#define JTAG_ID_BASE IO_ADDRESS(0x01c40028)
-
-static unsigned int davinci_revision;
-
-struct davinci_id {
- u8 variant; /* JTAG ID bits 31:28 */
- u16 part_no; /* JTAG ID bits 27:12 */
- u32 manufacturer; /* JTAG ID bits 11:1 */
- u32 type; /* Cpu id bits [31:8], cpu class bits [7:0] */
-};
-
-/* Register values to detect the DaVinci version */
-static struct davinci_id davinci_ids[] __initdata = {
- {
- /* DM6446 */
- .part_no = 0xb700,
- .variant = 0x0,
- .manufacturer = 0x017,
- .type = 0x64460000,
- },
- {
- /* DM646X */
- .part_no = 0xb770,
- .variant = 0x0,
- .manufacturer = 0x017,
- .type = 0x64670000,
- },
- {
- /* DM355 */
- .part_no = 0xb73b,
- .variant = 0x0,
- .manufacturer = 0x00f,
- .type = 0x03550000,
- },
-};
-
-/*
- * Get Device Part No. from JTAG ID register
- */
-static u16 __init davinci_get_part_no(void)
-{
- u32 dev_id, part_no;
-
- dev_id = __raw_readl(JTAG_ID_BASE);
-
- part_no = ((dev_id >> 12) & 0xffff);
-
- return part_no;
-}
-
-/*
- * Get Device Revision from JTAG ID register
- */
-static u8 __init davinci_get_variant(void)
-{
- u32 variant;
-
- variant = __raw_readl(JTAG_ID_BASE);
-
- variant = (variant >> 28) & 0xf;
-
- return variant;
-}
-
-unsigned int davinci_rev(void)
-{
- return davinci_revision >> 16;
-}
-EXPORT_SYMBOL(davinci_rev);
-
-void __init davinci_check_revision(void)
-{
- int i;
- u16 part_no;
- u8 variant;
-
- part_no = davinci_get_part_no();
- variant = davinci_get_variant();
-
- /* First check only the major version in a safe way */
- for (i = 0; i < ARRAY_SIZE(davinci_ids); i++) {
- if (part_no == (davinci_ids[i].part_no)) {
- davinci_revision = davinci_ids[i].type;
- break;
- }
- }
-
- /* Check if we can find the dev revision */
- for (i = 0; i < ARRAY_SIZE(davinci_ids); i++) {
- if (part_no == davinci_ids[i].part_no &&
- variant == davinci_ids[i].variant) {
- davinci_revision = davinci_ids[i].type;
- break;
- }
- }
-
- printk(KERN_INFO "DaVinci DM%04x variant 0x%x\n",
- davinci_rev(), variant);
-}