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ar71xx: Add ath79_register_m25p80_large to support >16MB SPI chips

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The following patch is to add ath79_register_m25p80_large, which sets
is_flash to false to support bit banging. This is needed on some 32MB+
SPI chips, such as the S25FL256S1

Signed-off-by: Chris R Blake <chrisrblake93@gmail.com>

SVN-Revision: 47952
This commit is contained in:
Felix Fietkau 2015-12-19 11:32:20 +00:00
parent ea1cc733af
commit 3fa85af5ad
2 changed files with 9 additions and 0 deletions
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8
target/linux/ar71xx/files/arch/mips/ath79/dev-m25p80.c
View file

@ -106,6 +106,14 @@ static void add_mtd_concat_notifier(void)
register_mtd_user(&not); register_mtd_user(&not);
} }
void __init ath79_register_m25p80_large(struct flash_platform_data *pdata)
{
ath79_spi_data.bus_num = 0;
ath79_spi_data.num_chipselect = 1;
ath79_spi0_cdata.is_flash = false;
ath79_spi_info[0].platform_data = pdata;
ath79_register_spi(&ath79_spi_data, ath79_spi_info, 1);
}
void __init ath79_register_m25p80_multi(struct flash_platform_data *pdata) void __init ath79_register_m25p80_multi(struct flash_platform_data *pdata)
{ {

1
target/linux/ar71xx/files/arch/mips/ath79/dev-m25p80.h
View file

@ -12,6 +12,7 @@
#include <linux/spi/flash.h> #include <linux/spi/flash.h>
void ath79_register_m25p80(struct flash_platform_data *pdata) __init; void ath79_register_m25p80(struct flash_platform_data *pdata) __init;
void ath79_register_m25p80_large(struct flash_platform_data *pdata) __init;
void ath79_register_m25p80_multi(struct flash_platform_data *pdata) __init; void ath79_register_m25p80_multi(struct flash_platform_data *pdata) __init;
#endif /* _ATH79_DEV_M25P80_H */ #endif /* _ATH79_DEV_M25P80_H */