From 293b2da1b61136813fc2764f43304c66ff8040e9 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 24 Aug 2012 15:16:48 +0200 Subject: ARM: pxa: move platform_data definitions Platform data for device drivers should be defined in include/linux/platform_data/*.h, not in the architecture and platform specific directories. This moves such data out of the pxa include directories Signed-off-by: Arnd Bergmann Acked-by: Mark Brown Acked-by: Greg Kroah-Hartman Acked-by: Nicolas Pitre Acked-by: Mauro Carvalho Chehab Acked-by: Igor Grinberg Acked-by: Jeff Garzik Acked-by: Marek Vasut Acked-by: Robert Jarzmik Acked-by: Paul Parsons Acked-by: Vinod Koul Acked-By: Stefan Schmidt Cc: Eric Miao Cc: Haojian Zhuang Cc: Daniel Ribeiro Cc: Harald Welte Cc: Philipp Zabel Cc: Tomas Cech Cc: Sergey Lapin Cc: Jonathan Cameron Cc: Dan Williams Cc: Dmitry Torokhov Cc: Chris Ball Cc: David Woodhouse Cc: Samuel Ortiz Cc: Alan Stern Cc: Florian Tobias Schandinat Cc: Liam Girdwood Cc: Jaroslav Kysela Cc: Takashi Iwai Cc: Guennadi Liakhovetski Cc: Artem Bityutskiy Cc: openezx-devel@lists.openezx.org --- include/linux/platform_data/mtd-nand-pxa3xx.h | 79 +++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 include/linux/platform_data/mtd-nand-pxa3xx.h (limited to 'include/linux/platform_data/mtd-nand-pxa3xx.h') diff --git a/include/linux/platform_data/mtd-nand-pxa3xx.h b/include/linux/platform_data/mtd-nand-pxa3xx.h new file mode 100644 index 00000000000..c42f39f2019 --- /dev/null +++ b/include/linux/platform_data/mtd-nand-pxa3xx.h @@ -0,0 +1,79 @@ +#ifndef __ASM_ARCH_PXA3XX_NAND_H +#define __ASM_ARCH_PXA3XX_NAND_H + +#include +#include + +struct pxa3xx_nand_timing { + unsigned int tCH; /* Enable signal hold time */ + unsigned int tCS; /* Enable signal setup time */ + unsigned int tWH; /* ND_nWE high duration */ + unsigned int tWP; /* ND_nWE pulse time */ + unsigned int tRH; /* ND_nRE high duration */ + unsigned int tRP; /* ND_nRE pulse width */ + unsigned int tR; /* ND_nWE high to ND_nRE low for read */ + unsigned int tWHR; /* ND_nWE high to ND_nRE low for status read */ + unsigned int tAR; /* ND_ALE low to ND_nRE low delay */ +}; + +struct pxa3xx_nand_cmdset { + uint16_t read1; + uint16_t read2; + uint16_t program; + uint16_t read_status; + uint16_t read_id; + uint16_t erase; + uint16_t reset; + uint16_t lock; + uint16_t unlock; + uint16_t lock_status; +}; + +struct pxa3xx_nand_flash { + char *name; + uint32_t chip_id; + unsigned int page_per_block; /* Pages per block (PG_PER_BLK) */ + unsigned int page_size; /* Page size in bytes (PAGE_SZ) */ + unsigned int flash_width; /* Width of Flash memory (DWIDTH_M) */ + unsigned int dfc_width; /* Width of flash controller(DWIDTH_C) */ + unsigned int num_blocks; /* Number of physical blocks in Flash */ + + struct pxa3xx_nand_timing *timing; /* NAND Flash timing */ +}; + +/* + * Current pxa3xx_nand controller has two chip select which + * both be workable. + * + * Notice should be taken that: + * When you want to use this feature, you should not enable the + * keep configuration feature, for two chip select could be + * attached with different nand chip. The different page size + * and timing requirement make the keep configuration impossible. + */ + +/* The max num of chip select current support */ +#define NUM_CHIP_SELECT (2) +struct pxa3xx_nand_platform_data { + + /* the data flash bus is shared between the Static Memory + * Controller and the Data Flash Controller, the arbiter + * controls the ownership of the bus + */ + int enable_arbiter; + + /* allow platform code to keep OBM/bootloader defined NFC config */ + int keep_config; + + /* indicate how many chip selects will be used */ + int num_cs; + + const struct mtd_partition *parts[NUM_CHIP_SELECT]; + unsigned int nr_parts[NUM_CHIP_SELECT]; + + const struct pxa3xx_nand_flash * flash; + size_t num_flash; +}; + +extern void pxa3xx_set_nand_info(struct pxa3xx_nand_platform_data *info); +#endif /* __ASM_ARCH_PXA3XX_NAND_H */ -- cgit v1.2.3-70-g09d2