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Message-ID: <e7b30b240412292103319e92c0@mail.gmail.com>
Date: Thu, 30 Dec 2004 13:03:43 +0800
From: Mildred Frisco <mildred.frisco@gmail.com>
Reply-To: Mildred Frisco <mildred.frisco@gmail.com>
To: linux-kernel@vger.kernel.org
Subject: how to initialize resource on linux 2.4
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Hi,

I am porting for mx1 board and I am wondering how to initialize device
resources or adding 'struct resource' in linux 2.4.20.  In 2.6 kernel,
this is done in generic.c by

--------------------------------
...
...
static struct platform_device imx_uart2_device = {
       .name           = "imx-uart",
       .id             = 1,
       .num_resources  = ARRAY_SIZE(imx_uart2_resources),
       .resource       = imx_uart2_resources,
};

static struct imxfb_mach_info imx_fb_info;

void __init set_imx_fb_info(struct imxfb_mach_info *hard_imx_fb_info)
{
       memcpy(&imx_fb_info,hard_imx_fb_info,sizeof(struct imxfb_mach_info));
}
EXPORT_SYMBOL(set_imx_fb_info);

static struct resource imxfb_resources[] = {
       [0] = {
               .start  = 0x00205000,
               .end    = 0x002050FF,
               .flags  = IORESOURCE_MEM,
       },
       [1] = {
               .start  = LCDC_INT,
               .end    = LCDC_INT,
               .flags  = IORESOURCE_IRQ,
       },
};

static u64 fb_dma_mask = ~(u64)0;

static struct platform_device imxfb_device = {
       .name           = "imx-fb",
       .id             = 0,
       .dev            = {
               .platform_data  = &imx_fb_info,
               .dma_mask       = &fb_dma_mask,
               .coherent_dma_mask = 0xffffffff,
       },
       .num_resources  = ARRAY_SIZE(imxfb_resources),
       .resource       = imxfb_resources,
};

static struct platform_device *devices[] __initdata = {
       &imx_mmc_device,
       &imxfb_device,
       &imx_uart1_device,
       &imx_uart2_device,
};

void __init
imx_map_io(void)
{
       iotable_init(imx_io_desc, ARRAY_SIZE(imx_io_desc));
}

static int __init imx_init(void)
{
       return platform_add_devices(devices, ARRAY_SIZE(devices));
}

subsys_initcall(imx_init);

-------------------------------------------------

'struct platform_device' doesn't seem to exist in 2.4.  On what part
of the code should I  create a 'struct resource' for a particular
device so that the driver can use it?

Thanks,
Mildred