MIPS: TXx9: Add mtd support

Add helper routines to register physmap-flash platform devices for NOR
flashes.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

4 files changed, 11 insertions, 0 deletions

diff --git a/include/asm-mips/txx9/generic.h b/include/asm-mips/txx9/generic.h
index 0a225bf73496..1982c4437b1d 100644
--- a/include/asm-mips/txx9/generic.h
+++ b/include/asm-mips/txx9/generic.h
@@ -59,4 +59,8 @@ static inline void txx9_sio_putchar_init(unsigned long baseaddr)
 }
 #endif
 
+struct physmap_flash_data;
+void txx9_physmap_flash_init(int no, unsigned long addr, unsigned long size,
+                             const struct physmap_flash_data *pdata);
+
 #endif /* __ASM_TXX9_GENERIC_H */
diff --git a/include/asm-mips/txx9/tx3927.h b/include/asm-mips/txx9/tx3927.h
index 587deb9592d2..dc30c8d42061 100644
--- a/include/asm-mips/txx9/tx3927.h
+++ b/include/asm-mips/txx9/tx3927.h
@@ -325,6 +325,7 @@ struct tx3927_ccfg_reg {
 #define TX3927_ROMC_BA(ch)      (tx3927_romcptr->cr[(ch)] & 0xfff00000)
 #define TX3927_ROMC_SIZE(ch)    \
         (0x00100000 << ((tx3927_romcptr->cr[(ch)] >> 8) & 0xf))
+#define TX3927_ROMC_WIDTH(ch)   (32 >> ((tx3927_romcptr->cr[(ch)] >> 7) & 0x1))
 
 void tx3927_wdt_init(void);
 void tx3927_setup(void);
@@ -335,5 +336,6 @@ void tx3927_pcic_setup(struct pci_controller *channel,
                        unsigned long sdram_size, int extarb);
 void tx3927_setup_pcierr_irq(void);
 void tx3927_irq_init(void);
+void tx3927_mtd_init(int ch);
 
 #endif /* __ASM_TXX9_TX3927_H */
diff --git a/include/asm-mips/txx9/tx4927.h b/include/asm-mips/txx9/tx4927.h
index 195f6515db9a..36a9241b0cac 100644
--- a/include/asm-mips/txx9/tx4927.h
+++ b/include/asm-mips/txx9/tx4927.h
@@ -196,6 +196,8 @@ struct tx4927_ccfg_reg {
 #define TX4927_EBUSC_BA(ch)     ((TX4927_EBUSC_CR(ch) >> 48) << 20)
 #define TX4927_EBUSC_SIZE(ch)   \
         (0x00100000 << ((unsigned long)(TX4927_EBUSC_CR(ch) >> 8) & 0xf))
+#define TX4927_EBUSC_WIDTH(ch)  \
+        (64 >> ((__u32)(TX4927_EBUSC_CR(ch) >> 20) & 0x3))
 
 /* utilities */
 static inline void txx9_clear64(__u64 __iomem *adr, __u64 bits)
@@ -251,5 +253,6 @@ int tx4927_report_pciclk(void);
 int tx4927_pciclk66_setup(void);
 void tx4927_setup_pcierr_irq(void);
 void tx4927_irq_init(void);
+void tx4927_mtd_init(int ch);
 
 #endif /* __ASM_TXX9_TX4927_H */
diff --git a/include/asm-mips/txx9/tx4938.h b/include/asm-mips/txx9/tx4938.h
index 8175d4ccbc39..989e7751135a 100644
--- a/include/asm-mips/txx9/tx4938.h
+++ b/include/asm-mips/txx9/tx4938.h
@@ -274,6 +274,7 @@ struct tx4938_ccfg_reg {
 #define TX4938_EBUSC_CR(ch)     TX4927_EBUSC_CR(ch)
 #define TX4938_EBUSC_BA(ch)     TX4927_EBUSC_BA(ch)
 #define TX4938_EBUSC_SIZE(ch)   TX4927_EBUSC_SIZE(ch)
+#define TX4938_EBUSC_WIDTH(ch)  TX4927_EBUSC_WIDTH(ch)
 
 #define tx4938_get_mem_size() tx4927_get_mem_size()
 void tx4938_wdt_init(void);
@@ -289,5 +290,6 @@ struct pci_dev;
 int tx4938_pcic1_map_irq(const struct pci_dev *dev, u8 slot);
 void tx4938_setup_pcierr_irq(void);
 void tx4938_irq_init(void);
+void tx4938_mtd_init(int ch);
 
 #endif