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ARM i.MX bbu internal: Add spi/i2c support 

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2012-11-29 10:24:50 +01:00
parent 1ad78f3c80
commit 8e9a1d9943
2 changed files with 76 additions and 0 deletions
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54
arch/arm/mach-imx/imx-bbu-internal.c
View File

@ -36,6 +36,7 @@
#define IMX_INTERNAL_FLAG_NAND (1 << 0)
#define IMX_INTERNAL_FLAG_KEEP_DOSPART (1 << 1)
#define IMX_INTERNAL_FLAG_ERASE (1 << 2)
struct imx_internal_bbu_handler {
struct bbu_handler handler;
@ -60,6 +61,17 @@ static int imx_bbu_write_device(struct imx_internal_bbu_handler *imx_handler,
if (fd < 0)
return fd;
if (imx_handler->flags & IMX_INTERNAL_FLAG_ERASE) {
debug("%s: eraseing %s from 0 to 0x%08x\n", __func__,
data->devicefile, image_len);
ret = erase(fd, image_len, 0);
if (ret) {
printf("erasing %s failed with %s\n", data->devicefile,
strerror(-ret));
goto err_close;
}
}
if (imx_handler->flags & IMX_INTERNAL_FLAG_KEEP_DOSPART) {
void *mbr = xzalloc(512);
@ -543,6 +555,32 @@ int imx53_bbu_internal_mmc_register_handler(const char *name, char *devicefile,
return __register_handler(imx_handler);
}
/*
* Register a i.MX53 internal boot update handler for i2c/spi
* EEPROMs / flashes. Nearly the same as MMC/SD, but we do not need to
* keep a partition table. We have to erase the device beforehand though.
*/
int imx53_bbu_internal_spi_i2c_register_handler(const char *name, char *devicefile,
unsigned long flags, struct imx_dcd_v2_entry *dcd, int dcdsize,
unsigned long app_dest)
{
struct imx_internal_bbu_handler *imx_handler;
imx_handler = __init_handler(name, devicefile, flags);
imx53_bbu_internal_init_dcd(imx_handler, dcd, dcdsize);
imx_handler->flash_header_offset = FLASH_HEADER_OFFSET_MMC;
if (app_dest)
imx_handler->app_dest = app_dest;
else
imx_handler->app_dest = 0x70000000;
imx_handler->flags = IMX_INTERNAL_FLAG_ERASE;
imx_handler->handler.handler = imx_bbu_internal_v2_update;
return __register_handler(imx_handler);
}
/*
* Register a i.MX53 internal boot update handler for NAND
*/
@ -582,3 +620,19 @@ int imx6_bbu_internal_mmc_register_handler(const char *name, char *devicefile,
return imx53_bbu_internal_mmc_register_handler(name, devicefile,
flags, dcd, dcdsize, app_dest);
}
/*
* Register a i.MX53 internal boot update handler for i2c/spi
* EEPROMs / flashes. Nearly the same as MMC/SD, but we do not need to
* keep a partition table. We have to erase the device beforehand though.
*/
int imx6_bbu_internal_spi_i2c_register_handler(const char *name, char *devicefile,
unsigned long flags, struct imx_dcd_v2_entry *dcd, int dcdsize,
unsigned long app_dest)
{
if (!app_dest)
app_dest = 0x10000000;
return imx53_bbu_internal_spi_i2c_register_handler(name, devicefile,
flags, dcd, dcdsize, app_dest);
}

22
arch/arm/mach-imx/include/mach/bbu.h
View File

@ -16,6 +16,10 @@ int imx53_bbu_internal_mmc_register_handler(const char *name, char *devicefile,
unsigned long flags, struct imx_dcd_v2_entry *, int dcdsize,
unsigned long app_dest);
int imx53_bbu_internal_spi_i2c_register_handler(const char *name, char *devicefile,
unsigned long flags, struct imx_dcd_v2_entry *dcd, int dcdsize,
unsigned long app_dest);
int imx53_bbu_internal_nand_register_handler(const char *name,
unsigned long flags, struct imx_dcd_v2_entry *, int dcdsize,
int partition_size, unsigned long app_dest);
@ -24,6 +28,10 @@ int imx6_bbu_internal_mmc_register_handler(const char *name, char *devicefile,
unsigned long flags, struct imx_dcd_v2_entry *, int dcdsize,
unsigned long app_dest);
int imx6_bbu_internal_spi_i2c_register_handler(const char *name, char *devicefile,
unsigned long flags, struct imx_dcd_v2_entry *dcd, int dcdsize,
unsigned long app_dest);
#else
static inline int imx51_bbu_internal_mmc_register_handler(const char *name, char *devicefile,
@ -40,6 +48,13 @@ static inline int imx53_bbu_internal_mmc_register_handler(const char *name, char
return -ENOSYS;
}
static inline int imx53_bbu_internal_spi_i2c_register_handler(const char *name, char *devicefile,
unsigned long flags, struct imx_dcd_v2_entry *dcd, int dcdsize,
unsigned long app_dest)
{
return -ENOSYS;
}
static inline int imx53_bbu_internal_nand_register_handler(const char *name,
unsigned long flags, struct imx_dcd_v2_entry *dcd, int dcdsize,
int partition_size, unsigned long app_dest)
@ -54,6 +69,13 @@ static inline int imx6_bbu_internal_mmc_register_handler(const char *name, char
return -ENOSYS;
}
static inline int imx6_bbu_internal_spi_i2c_register_handler(const char *name, char *devicefile,
unsigned long flags, struct imx_dcd_v2_entry *dcd, int dcdsize,
unsigned long app_dest)
{
return -ENOSYS;
}
#endif
struct dcd_table {