65 lines
2.0 KiB
C
65 lines
2.0 KiB
C
#ifndef _FLASH_H
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#define _FLASH_H
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#include "ar7240_soc.h"
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#define AR7240_SPI_FS 0x1f000000
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#define AR7240_SPI_CLOCK 0x1f000004
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#define AR7240_SPI_WRITE 0x1f000008
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#define AR7240_SPI_READ 0x1f000000
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#define AR7240_SPI_RD_STATUS 0x1f00000c
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#define AR7240_SPI_CS_DIS 0x70000
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#define AR7240_SPI_CE_LOW 0x60000
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#define AR7240_SPI_CE_HIGH 0x60100
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#define AR7240_SPI_CMD_WRITE_SR 0x01
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#define AR7240_SPI_CMD_WREN 0x06
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#define AR7240_SPI_CMD_RD_STATUS 0x05
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#define AR7240_SPI_CMD_FAST_READ 0x0b
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#define AR7240_SPI_CMD_PAGE_PROG 0x02
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#define AR7240_SPI_CMD_SECTOR_ERASE 0xd8
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#define AR7240_SPI_CMD_CHIP_ERASE 0xc7
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#define AR7240_SPI_CMD_RDID 0x9f
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#define AR7240_SPI_SECTOR_SIZE (1024*64)
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#define AR7240_SPI_PAGE_SIZE 256
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#define display(_x) ar7240_reg_wr_nf(0x18040008, (_x))
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/*
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* primitives
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*/
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#define ar7240_be_msb(_val, _i) (((_val) & (1 << (7 - _i))) >> (7 - _i))
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#define ar7240_spi_bit_banger(_byte) do { \
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int i; \
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for(i = 0; i < 8; i++) { \
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ar7240_reg_wr_nf(AR7240_SPI_WRITE, \
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AR7240_SPI_CE_LOW | ar7240_be_msb(_byte, i)); \
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ar7240_reg_wr_nf(AR7240_SPI_WRITE, \
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AR7240_SPI_CE_HIGH | ar7240_be_msb(_byte, i)); \
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} \
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}while(0);
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#define ar7240_spi_go() do { \
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ar7240_reg_wr_nf(AR7240_SPI_WRITE, AR7240_SPI_CE_LOW); \
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ar7240_reg_wr_nf(AR7240_SPI_WRITE, AR7240_SPI_CS_DIS); \
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}while(0);
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#define ar7240_spi_send_addr(__a) do { \
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ar7240_spi_bit_banger(((__a & 0xff0000) >> 16)); \
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ar7240_spi_bit_banger(((__a & 0x00ff00) >> 8)); \
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ar7240_spi_bit_banger(__a & 0x0000ff); \
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} while (0)
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#define ar7240_spi_delay_8() ar7240_spi_bit_banger(0)
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#define ar7240_spi_done() ar7240_reg_wr_nf(AR7240_SPI_FS, 0)
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extern unsigned long flash_get_geom (flash_info_t *flash_info, u32 flashid);
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#endif /*_FLASH_H*/
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