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authorGuennadi Liakhovetski <lg@denx.de>2008-06-13 09:17:31 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-07-09 21:31:52 +0100
commite172274ccc55d20536fbdceb6131f38e288541e0 (patch)
treee3b0424d9c6d7e74608c29c91d94d94f6ab36706
parentcabb352a6455c3550f157909196845f533b0f374 (diff)
[ARM] 5088/3: pxa2xx: add pxa2xx_set_spi_info to register pxa2xx-spi platform devices
Add a function to dynamically allocate and register pxa2xx-spi platform devices, to be used by PXA2xx and PXA3xx based systems. Switch pcm027 and lubbock to use it. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
-rw-r--r--arch/arm/mach-pxa/Kconfig1
-rw-r--r--arch/arm/mach-pxa/devices.c18
-rw-r--r--arch/arm/mach-pxa/lubbock.c10
-rw-r--r--arch/arm/mach-pxa/pcm027.c31
-rw-r--r--include/asm-arm/arch-pxa/pxa2xx_spi.h2
5 files changed, 53 insertions, 9 deletions
diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index 914bb33dab92..ef7271e37810 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -139,6 +139,7 @@ config MACH_PCM027
bool "Phytec phyCORE-PXA270 CPU module (PCM-027)"
select PXA27x
select IWMMXT
+ select PXA_SSP
endmenu
diff --git a/arch/arm/mach-pxa/devices.c b/arch/arm/mach-pxa/devices.c
index a6f2390ce662..abc161dd083a 100644
--- a/arch/arm/mach-pxa/devices.c
+++ b/arch/arm/mach-pxa/devices.c
@@ -13,6 +13,7 @@
#include <asm/arch/mfp-pxa27x.h>
#include <asm/arch/ohci.h>
#include <asm/arch/pxa27x_keypad.h>
+#include <asm/arch/pxa2xx_spi.h>
#include <asm/arch/camera.h>
#include <asm/arch/audio.h>
@@ -831,3 +832,20 @@ void __init pxa3xx_set_mci3_info(struct pxamci_platform_data *info)
}
#endif /* CONFIG_PXA3xx */
+
+/* pxa2xx-spi platform-device ID equals respective SSP platform-device ID + 1.
+ * See comment in arch/arm/mach-pxa/ssp.c::ssp_probe() */
+void __init pxa2xx_set_spi_info(unsigned id, struct pxa2xx_spi_master *info)
+{
+ struct platform_device *pd;
+
+ pd = platform_device_alloc("pxa2xx-spi", id);
+ if (pd == NULL) {
+ printk(KERN_ERR "pxa2xx-spi: failed to allocate device id %d\n",
+ id);
+ return;
+ }
+
+ pd->dev.platform_data = info;
+ platform_device_add(pd);
+}
diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c
index a3fae4139203..e041cceab16b 100644
--- a/arch/arm/mach-pxa/lubbock.c
+++ b/arch/arm/mach-pxa/lubbock.c
@@ -226,14 +226,6 @@ static struct pxa2xx_spi_master pxa_ssp_master_info = {
.num_chipselect = 0,
};
-static struct platform_device pxa_ssp = {
- .name = "pxa2xx-spi",
- .id = 1,
- .dev = {
- .platform_data = &pxa_ssp_master_info,
- },
-};
-
static int lubbock_ads7846_pendown_state(void)
{
/* TS_BUSY is bit 8 in LUB_MISC_RD, but pendown is irq-only */
@@ -367,7 +359,6 @@ static struct platform_device *devices[] __initdata = {
&smc91x_device,
&lubbock_flash_device[0],
&lubbock_flash_device[1],
- &pxa_ssp,
};
static struct pxafb_mode_info sharp_lm8v31_mode = {
@@ -501,6 +492,7 @@ static void __init lubbock_init(void)
lubbock_flash_data[flashboot].name = "boot-rom";
(void) platform_add_devices(devices, ARRAY_SIZE(devices));
+ pxa2xx_set_spi_info(1, &pxa_ssp_master_info);
spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
}
diff --git a/arch/arm/mach-pxa/pcm027.c b/arch/arm/mach-pxa/pcm027.c
index 3b945eb0aee3..377f3be8ce57 100644
--- a/arch/arm/mach-pxa/pcm027.c
+++ b/arch/arm/mach-pxa/pcm027.c
@@ -24,7 +24,9 @@
#include <linux/platform_device.h>
#include <linux/mtd/physmap.h>
#include <linux/spi/spi.h>
+#include <linux/spi/max7301.h>
#include <linux/leds.h>
+
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/arch/hardware.h>
@@ -108,6 +110,32 @@ static struct platform_device smc91x_device = {
.resource = smc91x_resources,
};
+/*
+ * SPI host and devices
+ */
+static struct pxa2xx_spi_master pxa_ssp_master_info = {
+ .num_chipselect = 1,
+};
+
+static struct max7301_platform_data max7301_info = {
+ .base = -1,
+};
+
+/* bus_num must match id in pxa2xx_set_spi_info() call */
+static struct spi_board_info spi_board_info[] __initdata = {
+ {
+ .modalias = "max7301",
+ .platform_data = &max7301_info,
+ .max_speed_hz = 13000000,
+ .bus_num = 1,
+ .chip_select = 0,
+ .mode = SPI_MODE_0,
+ },
+};
+
+/*
+ * NOR flash
+ */
static struct physmap_flash_data pcm027_flash_data = {
.width = 4,
};
@@ -190,6 +218,9 @@ static void __init pcm027_init(void)
#ifdef CONFIG_MACH_PCM990_BASEBOARD
pcm990_baseboard_init();
#endif
+
+ pxa2xx_set_spi_info(1, &pxa_ssp_master_info);
+ spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
}
static void __init pcm027_map_io(void)
diff --git a/include/asm-arm/arch-pxa/pxa2xx_spi.h b/include/asm-arm/arch-pxa/pxa2xx_spi.h
index 3459fb26ce97..2206cb61a9f9 100644
--- a/include/asm-arm/arch-pxa/pxa2xx_spi.h
+++ b/include/asm-arm/arch-pxa/pxa2xx_spi.h
@@ -41,4 +41,6 @@ struct pxa2xx_spi_chip {
void (*cs_control)(u32 command);
};
+extern void pxa2xx_set_spi_info(unsigned id, struct pxa2xx_spi_master *info);
+
#endif /*PXA2XX_SPI_H_*/