redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

ARM: mx5: dynamically register mxc-nand device

Browse source 
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2010-08-03 11:59:46 +02:00
parent 00b57bf978
commit 63a7c6d750
4 changed files with 34 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
arch/arm/mach-mx5/devices-imx51.h
View file

@ -21,6 +21,10 @@ extern const struct imx_imx_uart_1irq_data imx51_imx_uart_data[] __initconst;
#define imx51_add_imx_uart(id, pdata) \
imx_add_imx_uart_1irq(&imx51_imx_uart_data[id], pdata)
extern const struct imx_mxc_nand_data imx51_mxc_nand_data __initconst;
#define imx51_add_mxc_nand(pdata) \
imx_add_mxc_nand(&imx51_mxc_nand_data, pdata)
extern const struct imx_spi_imx_data imx51_cspi_data __initconst;
#define imx51_add_cspi(pdata) \
imx_add_spi_imx(&imx51_cspi_data, pdata)

23
arch/arm/plat-mxc/devices/platform-mxc_nand.c
View file

@ -17,6 +17,15 @@
.irq = soc ## _INT_NFC \
}
#define imx_mxc_nandv3_data_entry_single(soc, _size) \
{ \
.id = -1, \
.iobase = soc ## _NFC_BASE_ADDR, \
.iosize = _size, \
.axibase = soc ## _NFC_AXI_BASE_ADDR, \
.irq = soc ## _INT_NFC \
}
#ifdef CONFIG_SOC_IMX21
const struct imx_mxc_nand_data imx21_mxc_nand_data __initconst =
imx_mxc_nand_data_entry_single(MX21, SZ_4K);
@ -42,12 +51,22 @@ const struct imx_mxc_nand_data imx35_mxc_nand_data __initconst =
imx_mxc_nand_data_entry_single(MX35, SZ_8K);
#endif
#ifdef CONFIG_ARCH_MX51
const struct imx_mxc_nand_data imx51_mxc_nand_data __initconst =
imx_mxc_nandv3_data_entry_single(MX51, SZ_16K);
#endif
struct platform_device *__init imx_add_mxc_nand(
const struct imx_mxc_nand_data *data,
const struct mxc_nand_platform_data *pdata)
{
/* AXI has to come first, that's how the mxc_nand driver expect it */
struct resource res[] = {
{
.start = data->axibase,
.end = data->axibase + SZ_16K - 1,
.flags = IORESOURCE_MEM,
}, {
.start = data->iobase,
.end = data->iobase + data->iosize - 1,
.flags = IORESOURCE_MEM,
@ -57,6 +76,8 @@ struct platform_device *__init imx_add_mxc_nand(
.flags = IORESOURCE_IRQ,
},
};
return imx_add_platform_device("mxc_nand", 0, res, ARRAY_SIZE(res),
return imx_add_platform_device("mxc_nand", data->id,
res + !data->axibase,
ARRAY_SIZE(res) - !data->axibase,
pdata, sizeof(*pdata));
}

7
arch/arm/plat-mxc/include/mach/devices-common.h
View file

@ -71,8 +71,15 @@ struct platform_device *__init imx_add_imx_uart_1irq(
#include <mach/mxc_nand.h>
struct imx_mxc_nand_data {
/*
* id is traditionally 0, but -1 is more appropriate. We use -1 for new
* machines but don't change existing devices as the nand device usually
* appears in the kernel command line to pass its partitioning.
*/
int id;
resource_size_t iobase;
resource_size_t iosize;
resource_size_t axibase;
resource_size_t irq;
};
struct platform_device *__init imx_add_mxc_nand(

2
arch/arm/plat-mxc/include/mach/mx51.h
View file

@ -287,7 +287,7 @@
#define MX51_MXC_INT_RESV5 5
#define MX51_MXC_INT_SDMA 6
#define MX51_MXC_INT_IOMUX 7
#define MX51_MXC_INT_NFC 8
#define MX51_INT_NFC 8
#define MX51_MXC_INT_VPU 9
#define MX51_MXC_INT_IPU_ERR 10
#define MX51_MXC_INT_IPU_SYN 11