2  * board-flash.c
3  * Modified from mach-omap2/board-3430sdp-flash.c
26 #include "board-flash.h"
30 #define MAX_SUPPORTED_GPMC_CONFIG	3
47 	.name		= "physmap-flash",
57 __init board_nor_init(struct mtd_partition *nor_parts, u8 nr_parts, u8 cs)  in board_nor_init()  argument
66 		err = gpmc_cs_request(cs, FLASH_SIZE_SDPV2 - 1,  in board_nor_init()
69 					+ FLASH_SIZE_SDPV2 - 1;  in board_nor_init()
71 		err = gpmc_cs_request(cs, FLASH_SIZE_SDPV1 - 1,  in board_nor_init()
74 					+ FLASH_SIZE_SDPV1 - 1;  in board_nor_init()
77 		pr_err("NOR: Can't request GPMC CS\n");  in board_nor_init()
87 	.dma_channel	= -1,   /* disable DMA in OMAP OneNAND driver */
92 				u8 nr_parts, u8 cs)  in board_onenand_init()  argument
94 	board_onenand_data.cs		= cs;  in board_onenand_init()
102 __init board_onenand_init(struct mtd_partition *nor_parts, u8 nr_parts, u8 cs)  in board_onenand_init()  argument
140 			u8 nr_parts, u8 cs, int nand_type)  in board_nand_init()  argument
142 	board_nand_data.cs		= cs;  in board_nand_init()
148 	board_nand_data.gpmc_irq = OMAP_GPMC_IRQ_BASE + cs;  in board_nand_init()
154  * get_gpmc0_type - Reads the FPGA DIP_SWITCH_INPUT_REGISTER2 to get
155  * the various cs values.
159 	u8 cs = 0;  in get_gpmc0_type()  local
164 		return -ENOMEM;  in get_gpmc0_type()
171 	/* S8-DIP-OFF = 1, S8-DIP-ON = 0 */  in get_gpmc0_type()
172 	cs = __raw_readw(fpga_map_addr + REG_FPGA_DIP_SWITCH_INPUT2) & 0xf;  in get_gpmc0_type()
174 	/* ES2.0 SDP's onwards 4 dip switches are provided for CS */  in get_gpmc0_type()
176 		/* change (S8-1:4=DS-2:0) to (S8-4:1=DS-2:0) */  in get_gpmc0_type()
177 		cs = ((cs & 8) >> 3) | ((cs & 4) >> 1) |  in get_gpmc0_type()
178 			((cs & 2) << 1) | ((cs & 1) << 3);  in get_gpmc0_type()
180 		/* change (S8-1:3=DS-2:0) to (S8-3:1=DS-2:0) */  in get_gpmc0_type()
181 		cs = ((cs & 4) >> 2) | (cs & 2) | ((cs & 1) << 2);  in get_gpmc0_type()
184 	return cs;  in get_gpmc0_type()
188  * board_flash_init - Identify devices connected to GPMC and register.
190  * @return - void.
195 	u8		cs = 0;  in board_flash_init()  local
203 	 * for which cs configuration matches for 2430 SDP?  in board_flash_init()
207 		pr_err("%s: Invalid chip select: %d\n", __func__, cs);  in board_flash_init()
212 	while (cs < GPMC_CS_NUM) {  in board_flash_init()
213 		switch (config_sel[cs]) {  in board_flash_init()
216 				norcs = cs;  in board_flash_init()
220 				nandcs = cs;  in board_flash_init()
224 				onenandcs = cs;  in board_flash_init()
227 		cs++;  in board_flash_init()