[PATCH 3/7] blackfin arch: move revid function into global headers as inline functions

From: Bryan Wu
Date: Sat Apr 28 2007 - 23:23:48 EST

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Signed-off-by: Bryan Wu <bryan.wu@xxxxxxxxxx>
---
arch/blackfin/kernel/setup.c | 72 +++++++-----------------------
include/asm-blackfin/mach-bf533/bf533.h | 2 +-
include/asm-blackfin/mach-bf537/bf537.h | 2 +-
include/asm-blackfin/mach-bf561/bf561.h | 2 +-
include/asm-blackfin/processor.h | 25 +++++++++++
5 files changed, 45 insertions(+), 58 deletions(-)

diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 6a2190f..724fd7a 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -121,34 +121,6 @@ void bf53x_relocate_l1_mem(void)

}

-/* Get the DSP Revision ID */
-static u_int get_dsp_rev_id(void)
-{
- u_int id;
- id = bfin_read_DSPID() & 0xffff;
-#if defined(CONFIG_BF561)
- id>>=8;
-#endif
- return id;
-}
-
-static inline u_int get_compiled_rev_id(void)
-{
-#if defined(CONFIG_BF_REV_0_0)
- return 0;
-#elif defined(CONFIG_BF_REV_0_1)
- return 1;
-#elif defined(CONFIG_BF_REV_0_2)
- return 2;
-#elif defined(CONFIG_BF_REV_0_3)
- return 3;
-#elif defined(CONFIG_BF_REV_0_4)
- return 4;
-#elif defined(CONFIG_BF_REV_0_5)
- return 5;
-#endif
-}
-
/*
* Initial parsing of the command line. Currently, we support:
* - Controlling the linux memory size: mem=xxx[KMG]
@@ -196,7 +168,7 @@ static __init void parse_cmdline_early(char *cmdline_p)

void __init setup_arch(char **cmdline_p)
{
- int bootmap_size, id;
+ int bootmap_size;
unsigned long l1_length, sclk, cclk;
#ifdef CONFIG_MTD_UCLINUX
unsigned long mtd_phys = 0;
@@ -329,30 +301,23 @@ void __init setup_arch(char **cmdline_p)
init_mm.brk = (unsigned long)0;

init_leds();
- id = get_dsp_rev_id();
-
- printk(KERN_INFO
- "Blackfin support (C) 2004-2006 Analog Devices, Inc.\n");
- printk(KERN_INFO "Compiled for ADSP-%s Rev. 0.%d\n", CPU,
- get_compiled_rev_id());
- if (id != get_compiled_rev_id())
- printk(KERN_ERR
- "Warning: Compiled for Rev %d, but running on Rev %d\n",
- get_compiled_rev_id(), id );
- if (id < SUPPORTED_DSPID)
- printk(KERN_ERR
- "Warning: Unsupported Chip Revision ADSP-%s Rev. 0.%d detected\n",
- CPU, id);
- printk(KERN_INFO
- "Blackfin uClinux support by http://blackfin.uclinux.org/\n";);
+
+ printk(KERN_INFO "Blackfin support (C) 2004-2007 Analog Devices, Inc.\n");
+ printk(KERN_INFO "Compiled for ADSP-%s Rev 0.%d\n", CPU, bfin_compiled_revid());
+ if (bfin_revid() != bfin_compiled_revid())
+ printk(KERN_ERR "Warning: Compiled for Rev %d, but running on Rev %d\n",
+ bfin_compiled_revid(), bfin_revid());
+ if (bfin_revid() < SUPPORTED_REVID)
+ printk(KERN_ERR "Warning: Unsupported Chip Revision ADSP-%s Rev 0.%d detected\n",
+ CPU, bfin_revid());
+ printk(KERN_INFO "Blackfin Linux support by http://blackfin.uclinux.org/\n";);

printk(KERN_INFO "Processor Speed: %lu MHz core clock and %lu Mhz System Clock\n",
cclk / 1000000, sclk / 1000000);

#if defined(ANOMALY_05000273)
if ((cclk >> 1) <= sclk)
- printk(KERN_ERR
- "\n\n\nANOMALY_05000273: CCLK must be >= 2*SCLK !!!\n\n\n");
+ printk("\n\n\nANOMALY_05000273: CCLK must be >= 2*SCLK !!!\n\n\n");
#endif

printk(KERN_INFO "Board Memory: %ldMB\n", physical_mem_end >> 20);
@@ -778,21 +743,19 @@ EXPORT_SYMBOL(get_sclk);
static int show_cpuinfo(struct seq_file *m, void *v)
{
char *cpu, *mmu, *fpu, *name;
-#ifdef CONFIG_BLKFIN_CACHE_LOCK
- int lock;
-#endif
+ uint32_t revid;

u_long cclk = 0, sclk = 0;
- u_int id, dcache_size = 0, dsup_banks = 0;
+ u_int dcache_size = 0, dsup_banks = 0;

cpu = CPU;
mmu = "none";
fpu = "none";
+ revid = bfin_revid();
name = bfin_board_name;

cclk = get_cclk();
sclk = get_sclk();
- id = get_dsp_rev_id();

seq_printf(m, "CPU:\t\tADSP-%s Rev. 0.%d\n"
"MMU:\t\t%s\n"
@@ -801,7 +764,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
"System Clock:\t%9lu Hz\n"
"BogoMips:\t%lu.%02lu\n"
"Calibration:\t%lu loops\n",
- cpu, id, mmu, fpu,
+ cpu, revid, mmu, fpu,
cclk,
sclk,
(loops_per_jiffy * HZ) / 500000,
@@ -856,8 +819,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
dsup_banks, BLKFIN_DSUBBANKS, BLKFIN_DWAYS,
BLKFIN_DLINES);
#ifdef CONFIG_BLKFIN_CACHE_LOCK
- lock = read_iloc();
- switch (lock) {
+ switch (read_iloc()) {
case WAY0_L:
seq_printf(m, "Way0 Locked-Down\n");
break;
diff --git a/include/asm-blackfin/mach-bf533/bf533.h b/include/asm-blackfin/mach-bf533/bf533.h
index 095ca36..185fc12 100644
--- a/include/asm-blackfin/mach-bf533/bf533.h
+++ b/include/asm-blackfin/mach-bf533/bf533.h
@@ -30,7 +30,7 @@
#ifndef __MACH_BF533_H__
#define __MACH_BF533_H__

-#define SUPPORTED_DSPID 2
+#define SUPPORTED_REVID 2

#define OFFSET_(x) ((x) & 0x0000FFFF)

diff --git a/include/asm-blackfin/mach-bf537/bf537.h b/include/asm-blackfin/mach-bf537/bf537.h
index 05b664f..b8924cd 100644
--- a/include/asm-blackfin/mach-bf537/bf537.h
+++ b/include/asm-blackfin/mach-bf537/bf537.h
@@ -30,7 +30,7 @@
#ifndef __MACH_BF537_H__
#define __MACH_BF537_H__

-#define SUPPORTED_DSPID 2
+#define SUPPORTED_REVID 2

/* Masks for generic ERROR IRQ demultiplexing used in int-priority-sc.c */

diff --git a/include/asm-blackfin/mach-bf561/bf561.h b/include/asm-blackfin/mach-bf561/bf561.h
index ded1796..96a5d3a 100644
--- a/include/asm-blackfin/mach-bf561/bf561.h
+++ b/include/asm-blackfin/mach-bf561/bf561.h
@@ -30,7 +30,7 @@
#ifndef __MACH_BF561_H__
#define __MACH_BF561_H__

-#define SUPPORTED_DSPID 0x3
+#define SUPPORTED_REVID 0x3

#define OFFSET_(x) ((x) & 0x0000FFFF)
#define L1_ISRAM 0xFFA00000
diff --git a/include/asm-blackfin/processor.h b/include/asm-blackfin/processor.h
index 299c493..997465c 100644
--- a/include/asm-blackfin/processor.h
+++ b/include/asm-blackfin/processor.h
@@ -7,6 +7,7 @@
*/
#define current_text_addr() ({ __label__ _l; _l: &&_l;})

+#include <asm/blackfin.h>
#include <asm/segment.h>
#include <linux/compiler.h>

@@ -102,4 +103,28 @@ unsigned long get_wchan(struct task_struct *p);

#define cpu_relax() barrier()

+/* Get the Silicon Revision of the chip */
+static inline uint32_t bfin_revid(void)
+{
+ /* stored in the upper 4 bits */
+ return bfin_read_CHIPID() >> 28;
+}
+
+static inline uint32_t bfin_compiled_revid(void)
+{
+#if defined(CONFIG_BF_REV_0_0)
+ return 0;
+#elif defined(CONFIG_BF_REV_0_1)
+ return 1;
+#elif defined(CONFIG_BF_REV_0_2)
+ return 2;
+#elif defined(CONFIG_BF_REV_0_3)
+ return 3;
+#elif defined(CONFIG_BF_REV_0_4)
+ return 4;
+#elif defined(CONFIG_BF_REV_0_5)
+ return 5;
+#endif
+}
+
#endif
--
1.5.1.2
-
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