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ARM: ux500: export System-on-Chip information ux500 via sysfs

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Here we make use of the new System-On-Chip bus driver to export
vital SoC information out to userspace via sysfs. This patch
provides a data structure of strings to populate the base
nodes found in:

/sys/devices/soc[0|1|2|...]/[family|machine|revision|soc_id].

It also adds one more node as requested by ST-Ericsson.
'process' depicts the way in which the silicon was manufactured.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Lee Jones
2012-02-06 11:22:24 -08:00
committed by Arnd Bergmann
parent 18403424c4
commit eda413c228
6 changed files with 130 additions and 14 deletions
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30
arch/arm/mach-ux500/cpu-db5500.c
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@@ -212,18 +212,32 @@ static int usb_db5500_tx_dma_cfg[] = {
DB5500_DMA_DEV38_USB_OTG_OEP_8
};
struct device* __init u5500_init_devices(void)
static const char *db5500_read_soc_id(void)
{
/* FIXME: First parameter to be a real parent. */
db5500_add_gpios(NULL);
return kasprintf(GFP_KERNEL, "u5500 currently unsupported\n");
}
static struct device * __init db5500_soc_device_init(void)
{
const char *soc_id = db5500_read_soc_id();
return ux500_soc_device_init(soc_id);
}
struct device * __init u5500_init_devices(void)
{
struct device *parent;
parent = db5500_soc_device_init();
db5500_add_gpios(parent);
db5500_pmu_init();
db5500_dma_init(NULL);
db5500_add_rtc(NULL);
db5500_add_usb(NULL, usb_db5500_rx_dma_cfg, usb_db5500_tx_dma_cfg);
db5500_dma_init(parent);
db5500_add_rtc(parent);
db5500_add_usb(parent, usb_db5500_rx_dma_cfg, usb_db5500_tx_dma_cfg);
platform_add_devices(db5500_platform_devs,
ARRAY_SIZE(db5500_platform_devs));
/* FIXME: Return value to be a real parent. */
return NULL;
return parent;
}