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authorAnton Vorontsov <avorontsov@ru.mvista.com>2008-10-09 02:32:59 +0200
committerKumar Gala <galak@kernel.crashing.org>2008-10-13 18:48:24 +0200
commitc0da99d5f7b0349cb11f970b3283c0d57beb5ec9 (patch)
tree43c6bf5406b4f93ccb6fd7e1d47b3c1bafd6ebbe
parentpowerpc/83xx: add NAND support for the MPC8360E-RDK boards (diff)
downloadlinux-c0da99d5f7b0349cb11f970b3283c0d57beb5ec9.tar.xz
linux-c0da99d5f7b0349cb11f970b3283c0d57beb5ec9.zip
powerpc: fix fsl_upm nand driver modular build
The fsl_upm nand driver fails to build because fsl_lbc_lock isn't exported, the lock is needed by the inlined fsl_upm_run_pattern() function: ERROR: "fsl_lbc_lock" [drivers/mtd/nand/fsl_upm.ko] undefined! Dave Jones purposed to export the lock, but it is better to just uninline the fsl_upm_run_pattern(). When uninlined we also no longer need the exported fsl_lbc_regs, and both fsl_lbc_lock and fsl_lbc_regs could be marked static. While at it, also add some missing includes that we should have included explicitly. Reported-by: Dave Jones <davej@redhat.com> Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
-rw-r--r--arch/powerpc/include/asm/fsl_lbc.h48
-rw-r--r--arch/powerpc/sysdev/fsl_lbc.c53
2 files changed, 53 insertions, 48 deletions
diff --git a/arch/powerpc/include/asm/fsl_lbc.h b/arch/powerpc/include/asm/fsl_lbc.h
index 303f5484c050..63a4f779f531 100644
--- a/arch/powerpc/include/asm/fsl_lbc.h
+++ b/arch/powerpc/include/asm/fsl_lbc.h
@@ -23,9 +23,9 @@
#ifndef __ASM_FSL_LBC_H
#define __ASM_FSL_LBC_H
+#include <linux/compiler.h>
#include <linux/types.h>
-#include <linux/spinlock.h>
-#include <asm/io.h>
+#include <linux/io.h>
struct fsl_lbc_bank {
__be32 br; /**< Base Register */
@@ -227,9 +227,6 @@ struct fsl_lbc_regs {
u8 res8[0xF00];
};
-extern struct fsl_lbc_regs __iomem *fsl_lbc_regs;
-extern spinlock_t fsl_lbc_lock;
-
/*
* FSL UPM routines
*/
@@ -268,44 +265,7 @@ static inline void fsl_upm_end_pattern(struct fsl_upm *upm)
cpu_relax();
}
-/**
- * fsl_upm_run_pattern - actually run an UPM pattern
- * @upm: pointer to the fsl_upm structure obtained via fsl_upm_find
- * @io_base: remapped pointer to where memory access should happen
- * @mar: MAR register content during pattern execution
- *
- * This function triggers dummy write to the memory specified by the io_base,
- * thus UPM pattern actually executed. Note that mar usage depends on the
- * pre-programmed AMX bits in the UPM RAM.
- */
-static inline int fsl_upm_run_pattern(struct fsl_upm *upm,
- void __iomem *io_base, u32 mar)
-{
- int ret = 0;
- unsigned long flags;
-
- spin_lock_irqsave(&fsl_lbc_lock, flags);
-
- out_be32(&fsl_lbc_regs->mar, mar << (32 - upm->width));
-
- switch (upm->width) {
- case 8:
- out_8(io_base, 0x0);
- break;
- case 16:
- out_be16(io_base, 0x0);
- break;
- case 32:
- out_be32(io_base, 0x0);
- break;
- default:
- ret = -EINVAL;
- break;
- }
-
- spin_unlock_irqrestore(&fsl_lbc_lock, flags);
-
- return ret;
-}
+extern int fsl_upm_run_pattern(struct fsl_upm *upm, void __iomem *io_base,
+ u32 mar);
#endif /* __ASM_FSL_LBC_H */
diff --git a/arch/powerpc/sysdev/fsl_lbc.c b/arch/powerpc/sysdev/fsl_lbc.c
index 422c8faef593..0494ee55920f 100644
--- a/arch/powerpc/sysdev/fsl_lbc.c
+++ b/arch/powerpc/sysdev/fsl_lbc.c
@@ -11,14 +11,19 @@
* (at your option) any later version.
*/
+#include <linux/init.h>
+#include <linux/module.h>
#include <linux/kernel.h>
+#include <linux/compiler.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+#include <linux/io.h>
#include <linux/of.h>
+#include <asm/prom.h>
#include <asm/fsl_lbc.h>
-spinlock_t fsl_lbc_lock = __SPIN_LOCK_UNLOCKED(fsl_lbc_lock);
-
-struct fsl_lbc_regs __iomem *fsl_lbc_regs;
-EXPORT_SYMBOL(fsl_lbc_regs);
+static spinlock_t fsl_lbc_lock = __SPIN_LOCK_UNLOCKED(fsl_lbc_lock);
+static struct fsl_lbc_regs __iomem *fsl_lbc_regs;
static char __initdata *compat_lbc[] = {
"fsl,pq2-localbus",
@@ -127,3 +132,43 @@ int fsl_upm_find(phys_addr_t addr_base, struct fsl_upm *upm)
return 0;
}
EXPORT_SYMBOL(fsl_upm_find);
+
+/**
+ * fsl_upm_run_pattern - actually run an UPM pattern
+ * @upm: pointer to the fsl_upm structure obtained via fsl_upm_find
+ * @io_base: remapped pointer to where memory access should happen
+ * @mar: MAR register content during pattern execution
+ *
+ * This function triggers dummy write to the memory specified by the io_base,
+ * thus UPM pattern actually executed. Note that mar usage depends on the
+ * pre-programmed AMX bits in the UPM RAM.
+ */
+int fsl_upm_run_pattern(struct fsl_upm *upm, void __iomem *io_base, u32 mar)
+{
+ int ret = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&fsl_lbc_lock, flags);
+
+ out_be32(&fsl_lbc_regs->mar, mar << (32 - upm->width));
+
+ switch (upm->width) {
+ case 8:
+ out_8(io_base, 0x0);
+ break;
+ case 16:
+ out_be16(io_base, 0x0);
+ break;
+ case 32:
+ out_be32(io_base, 0x0);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ spin_unlock_irqrestore(&fsl_lbc_lock, flags);
+
+ return ret;
+}
+EXPORT_SYMBOL(fsl_upm_run_pattern);