cc26b3b01b
Add minimal omap3430 support based on earlier patches from Syed Mohammed Khasim. Also merge in omap34xx SRAM support from Karthik Dasu and use consistent naming for sram init functions. Also do following changes that make 34xx support usable: - Remove unused sram.c functions for 34xx - Rename IRQ_SIR_IRQ to INTCPS_SIR_IRQ and define it locally in entry-macro.S - Update mach-omap2/io.c to support 2420, 2430, and 34xx - Also merge in 34xx GPMC changes to add fields wr_access and wr_data_mux_bus from Adrian Hunter - Remove memory initialization call omap2_init_memory() until until more generic memory initialization patches are posted. It's OK to rely on bootloader initialization until then. Signed-off-by: Syed Mohammed, Khasim <khasim@ti.com> Signed-off-by: Karthik Dasu<karthik-dp@ti.com> Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
109 lines
4.0 KiB
C
109 lines
4.0 KiB
C
/*
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* General-Purpose Memory Controller for OMAP2
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*
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* Copyright (C) 2005-2006 Nokia Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __OMAP2_GPMC_H
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#define __OMAP2_GPMC_H
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/* Maximum Number of Chip Selects */
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#define GPMC_CS_NUM 8
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#define GPMC_CS_CONFIG1 0x00
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#define GPMC_CS_CONFIG2 0x04
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#define GPMC_CS_CONFIG3 0x08
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#define GPMC_CS_CONFIG4 0x0c
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#define GPMC_CS_CONFIG5 0x10
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#define GPMC_CS_CONFIG6 0x14
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#define GPMC_CS_CONFIG7 0x18
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#define GPMC_CS_NAND_COMMAND 0x1c
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#define GPMC_CS_NAND_ADDRESS 0x20
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#define GPMC_CS_NAND_DATA 0x24
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#define GPMC_CONFIG 0x50
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#define GPMC_STATUS 0x54
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#define GPMC_CONFIG1_WRAPBURST_SUPP (1 << 31)
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#define GPMC_CONFIG1_READMULTIPLE_SUPP (1 << 30)
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#define GPMC_CONFIG1_READTYPE_ASYNC (0 << 29)
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#define GPMC_CONFIG1_READTYPE_SYNC (1 << 29)
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#define GPMC_CONFIG1_WRITEMULTIPLE_SUPP (1 << 28)
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#define GPMC_CONFIG1_WRITETYPE_ASYNC (0 << 27)
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#define GPMC_CONFIG1_WRITETYPE_SYNC (1 << 27)
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#define GPMC_CONFIG1_CLKACTIVATIONTIME(val) ((val & 3) << 25)
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#define GPMC_CONFIG1_PAGE_LEN(val) ((val & 3) << 23)
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#define GPMC_CONFIG1_WAIT_READ_MON (1 << 22)
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#define GPMC_CONFIG1_WAIT_WRITE_MON (1 << 21)
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#define GPMC_CONFIG1_WAIT_MON_IIME(val) ((val & 3) << 18)
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#define GPMC_CONFIG1_WAIT_PIN_SEL(val) ((val & 3) << 16)
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#define GPMC_CONFIG1_DEVICESIZE(val) ((val & 3) << 12)
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#define GPMC_CONFIG1_DEVICESIZE_16 GPMC_CONFIG1_DEVICESIZE(1)
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#define GPMC_CONFIG1_DEVICETYPE(val) ((val & 3) << 10)
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#define GPMC_CONFIG1_DEVICETYPE_NOR GPMC_CONFIG1_DEVICETYPE(0)
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#define GPMC_CONFIG1_DEVICETYPE_NAND GPMC_CONFIG1_DEVICETYPE(1)
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#define GPMC_CONFIG1_MUXADDDATA (1 << 9)
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#define GPMC_CONFIG1_TIME_PARA_GRAN (1 << 4)
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#define GPMC_CONFIG1_FCLK_DIV(val) (val & 3)
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#define GPMC_CONFIG1_FCLK_DIV2 (GPMC_CONFIG1_FCLK_DIV(1))
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#define GPMC_CONFIG1_FCLK_DIV3 (GPMC_CONFIG1_FCLK_DIV(2))
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#define GPMC_CONFIG1_FCLK_DIV4 (GPMC_CONFIG1_FCLK_DIV(3))
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/*
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* Note that all values in this struct are in nanoseconds, while
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* the register values are in gpmc_fck cycles.
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*/
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struct gpmc_timings {
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/* Minimum clock period for synchronous mode */
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u16 sync_clk;
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/* Chip-select signal timings corresponding to GPMC_CS_CONFIG2 */
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u16 cs_on; /* Assertion time */
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u16 cs_rd_off; /* Read deassertion time */
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u16 cs_wr_off; /* Write deassertion time */
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/* ADV signal timings corresponding to GPMC_CONFIG3 */
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u16 adv_on; /* Assertion time */
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u16 adv_rd_off; /* Read deassertion time */
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u16 adv_wr_off; /* Write deassertion time */
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/* WE signals timings corresponding to GPMC_CONFIG4 */
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u16 we_on; /* WE assertion time */
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u16 we_off; /* WE deassertion time */
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/* OE signals timings corresponding to GPMC_CONFIG4 */
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u16 oe_on; /* OE assertion time */
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u16 oe_off; /* OE deassertion time */
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/* Access time and cycle time timings corresponding to GPMC_CONFIG5 */
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u16 page_burst_access; /* Multiple access word delay */
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u16 access; /* Start-cycle to first data valid delay */
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u16 rd_cycle; /* Total read cycle time */
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u16 wr_cycle; /* Total write cycle time */
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/* The following are only on OMAP3430 */
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u16 wr_access; /* WRACCESSTIME */
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u16 wr_data_mux_bus; /* WRDATAONADMUXBUS */
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};
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extern unsigned int gpmc_ns_to_ticks(unsigned int time_ns);
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extern unsigned int gpmc_ticks_to_ns(unsigned int ticks);
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extern unsigned int gpmc_round_ns_to_ticks(unsigned int time_ns);
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extern unsigned long gpmc_get_fclk_period(void);
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extern void gpmc_cs_write_reg(int cs, int idx, u32 val);
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extern u32 gpmc_cs_read_reg(int cs, int idx);
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extern int gpmc_cs_calc_divider(int cs, unsigned int sync_clk);
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extern int gpmc_cs_set_timings(int cs, const struct gpmc_timings *t);
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extern int gpmc_cs_request(int cs, unsigned long size, unsigned long *base);
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extern void gpmc_cs_free(int cs);
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extern int gpmc_cs_set_reserved(int cs, int reserved);
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extern int gpmc_cs_reserved(int cs);
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extern void gpmc_init(void);
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#endif
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