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author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-02 15:04:12 -0700 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-02 15:04:12 -0700 |
commit | a8c4c20dfa8b28a3c99e33c639d9c2ea5657741e (patch) | |
tree | 887b64d29b5a46d9ab2ca1267d8a2f05b5845561 /include/asm-arm/arch-omap/gpmc.h | |
parent | 168d04b3b4de7723eb73b3cffc9cb75224e0f393 (diff) | |
parent | 2dc7667b9d0674db6572723356fe3857031101a4 (diff) | |
download | blackbird-op-linux-a8c4c20dfa8b28a3c99e33c639d9c2ea5657741e.tar.gz blackbird-op-linux-a8c4c20dfa8b28a3c99e33c639d9c2ea5657741e.zip |
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (44 commits)
[ARM] 3541/2: workaround for PXA27x erratum E7
[ARM] nommu: provide a way for correct control register value selection
[ARM] 3705/1: add supersection support to ioremap()
[ARM] 3707/1: iwmmxt: use the generic thread notifier infrastructure
[ARM] 3706/2: ep93xx: add cirrus logic edb9315a support
[ARM] 3704/1: format IOP Kconfig with tabs, create more consistency
[ARM] 3703/1: Add help description for ARCH_EP80219
[ARM] 3678/1: MMC: Make OMAP MMC work
[ARM] 3677/1: OMAP: Update H2 defconfig
[ARM] 3676/1: ARM: OMAP: Fix dmtimers and timer32k to compile on OMAP1
[ARM] Add section support to ioremap
[ARM] Fix sa11x0 SDRAM selection
[ARM] Set bit 4 on section mappings correctly depending on CPU
[ARM] 3666/1: TRIZEPS4 [1/5] core
ARM: OMAP: Multiplexing for 24xx GPMC wait pin monitoring
ARM: OMAP: Fix SRAM to use MT_MEMORY instead of MT_DEVICE
ARM: OMAP: Update dmtimers
ARM: OMAP: Make clock variables static
ARM: OMAP: Fix GPMC compilation when DEBUG is defined
ARM: OMAP: Mux updates for external DMA and GPIO
...
Diffstat (limited to 'include/asm-arm/arch-omap/gpmc.h')
-rw-r--r-- | include/asm-arm/arch-omap/gpmc.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/include/asm-arm/arch-omap/gpmc.h b/include/asm-arm/arch-omap/gpmc.h new file mode 100644 index 000000000000..1a0a5207822d --- /dev/null +++ b/include/asm-arm/arch-omap/gpmc.h @@ -0,0 +1,91 @@ +/* + * General-Purpose Memory Controller for OMAP2 + * + * Copyright (C) 2005-2006 Nokia Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __OMAP2_GPMC_H +#define __OMAP2_GPMC_H + +#define GPMC_CS_CONFIG1 0x00 +#define GPMC_CS_CONFIG2 0x04 +#define GPMC_CS_CONFIG3 0x08 +#define GPMC_CS_CONFIG4 0x0c +#define GPMC_CS_CONFIG5 0x10 +#define GPMC_CS_CONFIG6 0x14 +#define GPMC_CS_CONFIG7 0x18 +#define GPMC_CS_NAND_COMMAND 0x1c +#define GPMC_CS_NAND_ADDRESS 0x20 +#define GPMC_CS_NAND_DATA 0x24 + +#define GPMC_CONFIG1_WRAPBURST_SUPP (1 << 31) +#define GPMC_CONFIG1_READMULTIPLE_SUPP (1 << 20) +#define GPMC_CONFIG1_READTYPE_ASYNC (0 << 29) +#define GPMC_CONFIG1_READTYPE_SYNC (1 << 29) +#define GPMC_CONFIG1_WRITETYPE_ASYNC (0 << 27) +#define GPMC_CONFIG1_WRITETYPE_SYNC (1 << 27) +#define GPMC_CONFIG1_CLKACTIVATIONTIME(val) ((val & 3) << 25) +#define GPMC_CONFIG1_PAGE_LEN(val) ((val & 3) << 23) +#define GPMC_CONFIG1_WAIT_READ_MON (1 << 22) +#define GPMC_CONFIG1_WAIT_WRITE_MON (1 << 21) +#define GPMC_CONFIG1_WAIT_MON_IIME(val) ((val & 3) << 18) +#define GPMC_CONFIG1_WAIT_PIN_SEL(val) ((val & 3) << 16) +#define GPMC_CONFIG1_DEVICESIZE(val) ((val & 3) << 12) +#define GPMC_CONFIG1_DEVICESIZE_16 GPMC_CONFIG1_DEVICESIZE(1) +#define GPMC_CONFIG1_DEVICETYPE(val) ((val & 3) << 10) +#define GPMC_CONFIG1_DEVICETYPE_NOR GPMC_CONFIG1_DEVICETYPE(0) +#define GPMC_CONFIG1_DEVICETYPE_NAND GPMC_CONFIG1_DEVICETYPE(1) +#define GPMC_CONFIG1_MUXADDDATA (1 << 9) +#define GPMC_CONFIG1_TIME_PARA_GRAN (1 << 4) +#define GPMC_CONFIG1_FCLK_DIV(val) (val & 3) +#define GPMC_CONFIG1_FCLK_DIV2 (GPMC_CONFIG1_FCLK_DIV(1)) +#define GPMC_CONFIG1_FCLK_DIV3 (GPMC_CONFIG1_FCLK_DIV(2)) +#define GPMC_CONFIG1_FCLK_DIV4 (GPMC_CONFIG1_FCLK_DIV(3)) + +/* + * Note that all values in this struct are in nanoseconds, while + * the register values are in gpmc_fck cycles. + */ +struct gpmc_timings { + /* Minimum clock period for synchronous mode */ + u16 sync_clk; + + /* Chip-select signal timings corresponding to GPMC_CS_CONFIG2 */ + u16 cs_on; /* Assertion time */ + u16 cs_rd_off; /* Read deassertion time */ + u16 cs_wr_off; /* Write deassertion time */ + + /* ADV signal timings corresponding to GPMC_CONFIG3 */ + u16 adv_on; /* Assertion time */ + u16 adv_rd_off; /* Read deassertion time */ + u16 adv_wr_off; /* Write deassertion time */ + + /* WE signals timings corresponding to GPMC_CONFIG4 */ + u16 we_on; /* WE assertion time */ + u16 we_off; /* WE deassertion time */ + + /* OE signals timings corresponding to GPMC_CONFIG4 */ + u16 oe_on; /* OE assertion time */ + u16 oe_off; /* OE deassertion time */ + + /* Access time and cycle time timings corresponding to GPMC_CONFIG5 */ + u16 page_burst_access; /* Multiple access word delay */ + u16 access; /* Start-cycle to first data valid delay */ + u16 rd_cycle; /* Total read cycle time */ + u16 wr_cycle; /* Total write cycle time */ +}; + +extern unsigned int gpmc_ns_to_ticks(unsigned int time_ns); + +extern void gpmc_cs_write_reg(int cs, int idx, u32 val); +extern u32 gpmc_cs_read_reg(int cs, int idx); +extern int gpmc_cs_calc_divider(int cs, unsigned int sync_clk); +extern int gpmc_cs_set_timings(int cs, const struct gpmc_timings *t); +extern unsigned long gpmc_cs_get_base_addr(int cs); + + +#endif |