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authorAtsushi Nemoto <anemo@mba.ocn.ne.jp>2008-08-19 22:55:14 +0900
committerRalf Baechle <ralf@linux-mips.org>2008-10-11 16:18:44 +0100
commitd75a40e90e9eb08c2159e719a90a7922dab231d3 (patch)
tree5218a3fd78998fb47247ccbc35115a1cc42a265d /arch/mips/txx9/rbtx4938
parente6332374770ae5aa370af5792115261edbad05c1 (diff)
MIPS: TXx9: Make spi_eeprom.c more generic
Helper routines in txx9/rbtx4938/spi_eeprom.c is not TX4938 specific. Move it to txx9/generic/ directory and make it works with SPI bus number other than 0. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> create mode 100644 arch/mips/txx9/generic/spi_eeprom.c delete mode 100644 arch/mips/txx9/rbtx4938/spi_eeprom.c
Diffstat (limited to 'arch/mips/txx9/rbtx4938')
-rw-r--r--arch/mips/txx9/rbtx4938/Makefile2
-rw-r--r--arch/mips/txx9/rbtx4938/setup.c11
-rw-r--r--arch/mips/txx9/rbtx4938/spi_eeprom.c99
3 files changed, 7 insertions, 105 deletions
diff --git a/arch/mips/txx9/rbtx4938/Makefile b/arch/mips/txx9/rbtx4938/Makefile
index 9dcc52ae5b9..f3e1f597b4f 100644
--- a/arch/mips/txx9/rbtx4938/Makefile
+++ b/arch/mips/txx9/rbtx4938/Makefile
@@ -1,3 +1,3 @@
-obj-y += prom.o setup.o irq.o spi_eeprom.o
+obj-y += prom.o setup.o irq.o
EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/txx9/rbtx4938/setup.c b/arch/mips/txx9/rbtx4938/setup.c
index 7aba92a1239..ec6e81258f7 100644
--- a/arch/mips/txx9/rbtx4938/setup.c
+++ b/arch/mips/txx9/rbtx4938/setup.c
@@ -111,6 +111,7 @@ static void __init rbtx4938_pci_setup(void)
#define SEEPROM2_CS 0 /* IOC */
#define SEEPROM3_CS 1 /* IOC */
#define SRTC_CS 2 /* IOC */
+#define SPI_BUSNO 0
static int __init rbtx4938_ethaddr_init(void)
{
@@ -120,7 +121,7 @@ static int __init rbtx4938_ethaddr_init(void)
int i;
/* 0-3: "MAC\0", 4-9:eth0, 10-15:eth1, 16:sum */
- if (spi_eeprom_read(SEEPROM1_CS, 0, dat, sizeof(dat))) {
+ if (spi_eeprom_read(SPI_BUSNO, SEEPROM1_CS, 0, dat, sizeof(dat))) {
printk(KERN_ERR "seeprom: read error.\n");
return -ENODEV;
} else {
@@ -287,9 +288,9 @@ static int __init rbtx4938_spi_init(void)
.mode = SPI_MODE_1 | SPI_CS_HIGH,
};
spi_register_board_info(&srtc_info, 1);
- spi_eeprom_register(SEEPROM1_CS);
- spi_eeprom_register(16 + SEEPROM2_CS);
- spi_eeprom_register(16 + SEEPROM3_CS);
+ spi_eeprom_register(SPI_BUSNO, SEEPROM1_CS, 128);
+ spi_eeprom_register(SPI_BUSNO, 16 + SEEPROM2_CS, 128);
+ spi_eeprom_register(SPI_BUSNO, 16 + SEEPROM3_CS, 128);
gpio_request(16 + SRTC_CS, "rtc-rs5c348");
gpio_direction_output(16 + SRTC_CS, 0);
gpio_request(SEEPROM1_CS, "seeprom1");
@@ -298,7 +299,7 @@ static int __init rbtx4938_spi_init(void)
gpio_direction_output(16 + SEEPROM2_CS, 1);
gpio_request(16 + SEEPROM3_CS, "seeprom3");
gpio_direction_output(16 + SEEPROM3_CS, 1);
- tx4938_spi_init(0);
+ tx4938_spi_init(SPI_BUSNO);
return 0;
}
diff --git a/arch/mips/txx9/rbtx4938/spi_eeprom.c b/arch/mips/txx9/rbtx4938/spi_eeprom.c
deleted file mode 100644
index a7ea8b041c1..00000000000
--- a/arch/mips/txx9/rbtx4938/spi_eeprom.c
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * spi_eeprom.c
- * Copyright (C) 2000-2001 Toshiba Corporation
- *
- * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
- * terms of the GNU General Public License version 2. This program is
- * licensed "as is" without any warranty of any kind, whether express
- * or implied.
- *
- * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
- */
-#include <linux/init.h>
-#include <linux/device.h>
-#include <linux/spi/spi.h>
-#include <linux/spi/eeprom.h>
-#include <asm/txx9/spi.h>
-
-#define AT250X0_PAGE_SIZE 8
-
-/* register board information for at25 driver */
-int __init spi_eeprom_register(int chipid)
-{
- static struct spi_eeprom eeprom = {
- .name = "at250x0",
- .byte_len = 128,
- .page_size = AT250X0_PAGE_SIZE,
- .flags = EE_ADDR1,
- };
- struct spi_board_info info = {
- .modalias = "at25",
- .max_speed_hz = 1500000, /* 1.5Mbps */
- .bus_num = 0,
- .chip_select = chipid,
- .platform_data = &eeprom,
- /* Mode 0: High-Active, Sample-Then-Shift */
- };
-
- return spi_register_board_info(&info, 1);
-}
-
-/* simple temporary spi driver to provide early access to seeprom. */
-
-static struct read_param {
- int chipid;
- int address;
- unsigned char *buf;
- int len;
-} *read_param;
-
-static int __init early_seeprom_probe(struct spi_device *spi)
-{
- int stat = 0;
- u8 cmd[2];
- int len = read_param->len;
- char *buf = read_param->buf;
- int address = read_param->address;
-
- dev_info(&spi->dev, "spiclk %u KHz.\n",
- (spi->max_speed_hz + 500) / 1000);
- if (read_param->chipid != spi->chip_select)
- return -ENODEV;
- while (len > 0) {
- /* spi_write_then_read can only work with small chunk */
- int c = len < AT250X0_PAGE_SIZE ? len : AT250X0_PAGE_SIZE;
- cmd[0] = 0x03; /* AT25_READ */
- cmd[1] = address;
- stat = spi_write_then_read(spi, cmd, sizeof(cmd), buf, c);
- buf += c;
- len -= c;
- address += c;
- }
- return stat;
-}
-
-static struct spi_driver early_seeprom_driver __initdata = {
- .driver = {
- .name = "at25",
- .owner = THIS_MODULE,
- },
- .probe = early_seeprom_probe,
-};
-
-int __init spi_eeprom_read(int chipid, int address,
- unsigned char *buf, int len)
-{
- int ret;
- struct read_param param = {
- .chipid = chipid,
- .address = address,
- .buf = buf,
- .len = len
- };
-
- read_param = &param;
- ret = spi_register_driver(&early_seeprom_driver);
- if (!ret)
- spi_unregister_driver(&early_seeprom_driver);
- return ret;
-}