#include <asm/io.h>
+#define OMAP_DIE_ID_0 0xfffe1800
+#define OMAP_DIE_ID_1 0xfffe1804
+#define OMAP_PRODUCTION_ID_0 0xfffe2000
+#define OMAP_PRODUCTION_ID_1 0xfffe2004
+#define OMAP32_ID_0 0xfffed400
+#define OMAP32_ID_1 0xfffed404
+
struct omap_id {
u16 jtag_id; /* Used to determine OMAP type */
u8 die_rev; /* Processor revision */
#
# Common support
-obj-y := irq.o io.o sram-fn.o clock.o mux.o devices.o serial.o
+obj-y := irq.o id.o io.o sram-fn.o clock.o mux.o devices.o serial.o
obj-$(CONFIG_OMAP_MPU_TIMER) += timer-gp.o
--- /dev/null
+/*
+ * linux/arch/arm/mach-omap2/id.c
+ *
+ * OMAP2 CPU identification code
+ *
+ * Copyright (C) 2005 Nokia Corporation
+ * Written by Tony Lindgren <tony@atomide.com>
+ *
+ * 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/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <asm/io.h>
+
+#define OMAP24XX_TAP_BASE io_p2v(0x48014000)
+
+#define OMAP_TAP_IDCODE 0x0204
+#define OMAP_TAP_PROD_ID 0x0208
+
+#define OMAP_TAP_DIE_ID_0 0x0218
+#define OMAP_TAP_DIE_ID_1 0x021C
+#define OMAP_TAP_DIE_ID_2 0x0220
+#define OMAP_TAP_DIE_ID_3 0x0224
+
+/* system_rev fields for OMAP2 processors:
+ * CPU id bits [31:16],
+ * CPU device type [15:12], (unprg,normal,POP)
+ * CPU revision [11:08]
+ * CPU class bits [07:00]
+ */
+
+struct omap_id {
+ u16 hawkeye; /* Silicon type (Hawkeye id) */
+ u8 dev; /* Device type from production_id reg */
+ u32 type; /* combined type id copied to system_rev */
+};
+
+/* Register values to detect the OMAP version */
+static struct omap_id omap_ids[] __initdata = {
+ { .hawkeye = 0xb5d9, .dev = 0x0, .type = 0x24200000 },
+ { .hawkeye = 0xb5d9, .dev = 0x1, .type = 0x24201000 },
+ { .hawkeye = 0xb5d9, .dev = 0x2, .type = 0x24202000 },
+ { .hawkeye = 0xb5d9, .dev = 0x4, .type = 0x24220000 },
+ { .hawkeye = 0xb5d9, .dev = 0x8, .type = 0x24230000 },
+ { .hawkeye = 0xb68a, .dev = 0x0, .type = 0x24300000 },
+};
+
+static u32 __init read_tap_reg(int reg)
+{
+ return __raw_readl(OMAP24XX_TAP_BASE + reg);
+}
+
+void __init omap2_check_revision(void)
+{
+ int i, j;
+ u32 idcode;
+ u32 prod_id;
+ u16 hawkeye;
+ u8 dev_type;
+ u8 rev;
+
+ idcode = read_tap_reg(OMAP_TAP_IDCODE);
+ prod_id = read_tap_reg(OMAP_TAP_PROD_ID);
+ hawkeye = (idcode >> 12) & 0xffff;
+ rev = (idcode >> 28) & 0x0f;
+ dev_type = (prod_id >> 16) & 0x0f;
+
+#ifdef DEBUG
+ printk(KERN_DEBUG "OMAP_TAP_IDCODE 0x%08x REV %i HAWKEYE 0x%04x MANF %03x\n",
+ idcode, rev, hawkeye, (idcode >> 1) & 0x7ff);
+ printk(KERN_DEBUG "OMAP_TAP_DIE_ID_0: 0x%08x\n",
+ read_tap_reg(OMAP_TAP_DIE_ID_0));
+ printk(KERN_DEBUG "OMAP_TAP_DIE_ID_1: 0x%08x DEV_REV: %i\n",
+ read_tap_reg(OMAP_TAP_DIE_ID_1),
+ (read_tap_reg(OMAP_TAP_DIE_ID_1) >> 28) & 0xf);
+ printk(KERN_DEBUG "OMAP_TAP_DIE_ID_2: 0x%08x\n",
+ read_tap_reg(OMAP_TAP_DIE_ID_2));
+ printk(KERN_DEBUG "OMAP_TAP_DIE_ID_3: 0x%08x\n",
+ read_tap_reg(OMAP_TAP_DIE_ID_3));
+ printk(KERN_DEBUG "OMAP_TAP_PROD_ID_0: 0x%08x DEV_TYPE: %i\n",
+ prod_id, dev_type);
+#endif
+
+ /* Check hawkeye ids */
+ for (i = 0; i < ARRAY_SIZE(omap_ids); i++) {
+ if (hawkeye == omap_ids[i].hawkeye)
+ break;
+ }
+
+ if (i == ARRAY_SIZE(omap_ids)) {
+ printk(KERN_ERR "Unknown OMAP CPU id\n");
+ return;
+ }
+
+ for (j = i; j < ARRAY_SIZE(omap_ids); j++) {
+ if (dev_type == omap_ids[j].dev)
+ break;
+ }
+
+ if (j == ARRAY_SIZE(omap_ids)) {
+ printk(KERN_ERR "Unknown OMAP device type. "
+ "Handling it as OMAP%04x\n",
+ omap_ids[i].type >> 16);
+ j = i;
+ }
+ system_rev = omap_ids[j].type;
+
+ system_rev |= rev << 8;
+
+ /* Add the cpu class info (24xx) */
+ system_rev |= 0x24;
+
+ pr_info("OMAP%04x", system_rev >> 16);
+ if ((system_rev >> 8) & 0x0f)
+ printk("%x", (system_rev >> 8) & 0x0f);
+ printk("\n");
+}
+
extern void omap_sram_init(void);
extern int omap2_clk_init(void);
+extern void omap2_check_revision(void);
/*
* The machine specific code may provide the extra mapping besides the
void __init omap_map_common_io(void)
{
iotable_init(omap2_io_desc, ARRAY_SIZE(omap2_io_desc));
+ omap2_check_revision();
omap_sram_init();
omap2_mux_init();
omap2_clk_init();
extern unsigned int system_rev;
-#define OMAP_DIE_ID_0 0xfffe1800
-#define OMAP_DIE_ID_1 0xfffe1804
-#define OMAP_PRODUCTION_ID_0 0xfffe2000
-#define OMAP_PRODUCTION_ID_1 0xfffe2004
-#define OMAP32_ID_0 0xfffed400
-#define OMAP32_ID_1 0xfffed404
+#define omap2_cpu_rev() ((system_rev >> 8) & 0x0f)
/*
* Test if multicore OMAP support is needed
* cpu_is_omap7xx(): True for OMAP730
* cpu_is_omap15xx(): True for OMAP1510, OMAP5910 and OMAP310
* cpu_is_omap16xx(): True for OMAP1610, OMAP5912 and OMAP1710
- * cpu_is_omap24xx(): True for OMAP2420
+ * cpu_is_omap24xx(): True for OMAP2420, OMAP2422, OMAP2423, OMAP2430
+ * cpu_is_omap242x(): True for OMAP2420, OMAP2422, OMAP2423
+ * cpu_is_omap243x(): True for OMAP2430
*/
#define GET_OMAP_CLASS (system_rev & 0xff)
return (GET_OMAP_CLASS == (id)) ? 1 : 0; \
}
+#define GET_OMAP_SUBCLASS ((system_rev >> 16) & 0x0fff)
+
+#define IS_OMAP_SUBCLASS(subclass, id) \
+static inline int is_omap ##subclass (void) \
+{ \
+ return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
+}
+
IS_OMAP_CLASS(7xx, 0x07)
IS_OMAP_CLASS(15xx, 0x15)
IS_OMAP_CLASS(16xx, 0x16)
IS_OMAP_CLASS(24xx, 0x24)
+IS_OMAP_SUBCLASS(242x, 0x242)
+IS_OMAP_SUBCLASS(243x, 0x243)
+
#define cpu_is_omap7xx() 0
#define cpu_is_omap15xx() 0
#define cpu_is_omap16xx() 0
#define cpu_is_omap24xx() 0
+#define cpu_is_omap242x() 0
+#define cpu_is_omap243x() 0
#if defined(MULTI_OMAP1)
# if defined(CONFIG_ARCH_OMAP730)
# endif
# if defined(CONFIG_ARCH_OMAP24XX)
# undef cpu_is_omap24xx
+# undef cpu_is_omap242x
+# undef cpu_is_omap243x
# define cpu_is_omap24xx() 1
+# define cpu_is_omap242x() is_omap242x()
+# define cpu_is_omap243x() is_omap243x()
# endif
#endif
* cpu_is_omap1621(): True for OMAP1621
* cpu_is_omap1710(): True for OMAP1710
* cpu_is_omap2420(): True for OMAP2420
+ * cpu_is_omap2422(): True for OMAP2422
+ * cpu_is_omap2423(): True for OMAP2423
+ * cpu_is_omap2430(): True for OMAP2430
*/
#define GET_OMAP_TYPE ((system_rev >> 16) & 0xffff)
IS_OMAP_TYPE(1621, 0x1621)
IS_OMAP_TYPE(1710, 0x1710)
IS_OMAP_TYPE(2420, 0x2420)
+IS_OMAP_TYPE(2422, 0x2422)
+IS_OMAP_TYPE(2423, 0x2423)
+IS_OMAP_TYPE(2430, 0x2430)
#define cpu_is_omap310() 0
#define cpu_is_omap730() 0
#define cpu_is_omap1621() 0
#define cpu_is_omap1710() 0
#define cpu_is_omap2420() 0
+#define cpu_is_omap2422() 0
+#define cpu_is_omap2423() 0
+#define cpu_is_omap2430() 0
#if defined(MULTI_OMAP1)
# if defined(CONFIG_ARCH_OMAP730)
# define cpu_is_omap1710() is_omap1710()
#endif
-#if defined(CONFIG_ARCH_OMAP2420)
-# undef cpu_is_omap2420
-# define cpu_is_omap2420() 1
+#if defined(CONFIG_ARCH_OMAP24XX)
+# undef cpu_is_omap2420
+# undef cpu_is_omap2422
+# undef cpu_is_omap2423
+# undef cpu_is_omap2430
+# define cpu_is_omap2420() is_omap2420()
+# define cpu_is_omap2422() is_omap2422()
+# define cpu_is_omap2423() is_omap2423()
+# define cpu_is_omap2430() is_omap2430()
#endif
/* Macros to detect if we have OMAP1 or OMAP2 */
projects / linux-2.6-omap-h63xx.git / commitdiff