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MIPS: TXx9: Add mtd support

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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>
This commit is contained in:
Atsushi Nemoto
2008-08-19 22:55:11 +09:00
committed by Ralf Baechle
parent c7b95bcb38
commit 51f607c76e
11 changed files with 150 additions and 0 deletions
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14
arch/mips/txx9/generic/setup_tx4938.c
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@@ -14,6 +14,7 @@
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/param.h>
#include <linux/mtd/physmap.h>
#include <asm/txx9irq.h>
#include <asm/txx9tmr.h>
#include <asm/txx9pio.h>
@@ -269,3 +270,16 @@ void __init tx4938_ethaddr_init(unsigned char *addr0, unsigned char *addr1)
if (addr1 && (pcfg & TX4938_PCFG_ETH1_SEL))
txx9_ethaddr_init(TXX9_IRQ_BASE + TX4938_IR_ETH1, addr1);
}
void __init tx4938_mtd_init(int ch)
{
struct physmap_flash_data pdata = {
.width = TX4938_EBUSC_WIDTH(ch) / 8,
};
unsigned long start = txx9_ce_res[ch].start;
unsigned long size = txx9_ce_res[ch].end - start + 1;
if (!(TX4938_EBUSC_CR(ch) & 0x8))
return; /* disabled */
txx9_physmap_flash_init(ch, start, size, &pdata);
}