diff options
Diffstat (limited to 'arch/arm/mach-omap2/board-flash.c')
| -rw-r--r-- | arch/arm/mach-omap2/board-flash.c | 242 | 
1 files changed, 0 insertions, 242 deletions
diff --git a/arch/arm/mach-omap2/board-flash.c b/arch/arm/mach-omap2/board-flash.c deleted file mode 100644 index 2188dc30e232..000000000000 --- a/arch/arm/mach-omap2/board-flash.c +++ /dev/null @@ -1,242 +0,0 @@ -/* - * board-flash.c - * Modified from mach-omap2/board-3430sdp-flash.c - * - * Copyright (C) 2009 Nokia Corporation - * Copyright (C) 2009 Texas Instruments - * - * Vimal Singh <[email protected]> - * - * 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. - */ - -#include <linux/kernel.h> -#include <linux/omap-gpmc.h> -#include <linux/platform_device.h> -#include <linux/mtd/physmap.h> -#include <linux/io.h> - -#include <linux/platform_data/mtd-nand-omap2.h> -#include <linux/platform_data/mtd-onenand-omap2.h> - -#include "soc.h" -#include "common.h" -#include "board-flash.h" - -#define REG_FPGA_REV			0x10 -#define REG_FPGA_DIP_SWITCH_INPUT2	0x60 -#define MAX_SUPPORTED_GPMC_CONFIG	3 - -#define DEBUG_BASE		0x08000000 /* debug board */ - -/* various memory sizes */ -#define FLASH_SIZE_SDPV1	SZ_64M	/* NOR flash (64 Meg aligned) */ -#define FLASH_SIZE_SDPV2	SZ_128M	/* NOR flash (256 Meg aligned) */ - -static struct physmap_flash_data board_nor_data = { -	.width		= 2, -}; - -static struct resource board_nor_resource = { -	.flags		= IORESOURCE_MEM, -}; - -static struct platform_device board_nor_device = { -	.name		= "physmap-flash", -	.id		= 0, -	.dev		= { -			.platform_data = &board_nor_data, -	}, -	.num_resources	= 1, -	.resource	= &board_nor_resource, -}; - -static void -__init board_nor_init(struct mtd_partition *nor_parts, u8 nr_parts, u8 cs) -{ -	int err; - -	board_nor_data.parts	= nor_parts; -	board_nor_data.nr_parts	= nr_parts; - -	/* Configure start address and size of NOR device */ -	if (omap_rev() >= OMAP3430_REV_ES1_0) { -		err = gpmc_cs_request(cs, FLASH_SIZE_SDPV2 - 1, -				(unsigned long *)&board_nor_resource.start); -		board_nor_resource.end = board_nor_resource.start -					+ FLASH_SIZE_SDPV2 - 1; -	} else { -		err = gpmc_cs_request(cs, FLASH_SIZE_SDPV1 - 1, -				(unsigned long *)&board_nor_resource.start); -		board_nor_resource.end = board_nor_resource.start -					+ FLASH_SIZE_SDPV1 - 1; -	} -	if (err < 0) { -		pr_err("NOR: Can't request GPMC CS\n"); -		return; -	} -	if (platform_device_register(&board_nor_device) < 0) -		pr_err("Unable to register NOR device\n"); -} - -#if IS_ENABLED(CONFIG_MTD_ONENAND_OMAP2) -static struct omap_onenand_platform_data board_onenand_data = { -	.dma_channel	= -1,   /* disable DMA in OMAP OneNAND driver */ -}; - -void -__init board_onenand_init(struct mtd_partition *onenand_parts, -				u8 nr_parts, u8 cs) -{ -	board_onenand_data.cs		= cs; -	board_onenand_data.parts	= onenand_parts; -	board_onenand_data.nr_parts	= nr_parts; - -	gpmc_onenand_init(&board_onenand_data); -} -#endif /* IS_ENABLED(CONFIG_MTD_ONENAND_OMAP2) */ - -#if IS_ENABLED(CONFIG_MTD_NAND_OMAP2) - -/* Note that all values in this struct are in nanoseconds */ -struct gpmc_timings nand_default_timings[1] = { -	{ -		.sync_clk = 0, - -		.cs_on = 0, -		.cs_rd_off = 36, -		.cs_wr_off = 36, - -		.we_on = 6, -		.oe_on = 6, - -		.adv_on = 6, -		.adv_rd_off = 24, -		.adv_wr_off = 36, - -		.we_off = 30, -		.oe_off = 48, - -		.access = 54, -		.rd_cycle = 72, -		.wr_cycle = 72, - -		.wr_access = 30, -		.wr_data_mux_bus = 0, -	}, -}; - -static struct omap_nand_platform_data board_nand_data; - -void -__init board_nand_init(struct mtd_partition *nand_parts, u8 nr_parts, u8 cs, -				int nand_type, struct gpmc_timings *gpmc_t) -{ -	board_nand_data.cs		= cs; -	board_nand_data.parts		= nand_parts; -	board_nand_data.nr_parts	= nr_parts; -	board_nand_data.devsize		= nand_type; - -	board_nand_data.ecc_opt = OMAP_ECC_HAM1_CODE_SW; -	gpmc_nand_init(&board_nand_data, gpmc_t); -} -#endif /* IS_ENABLED(CONFIG_MTD_NAND_OMAP2) */ - -/** - * get_gpmc0_type - Reads the FPGA DIP_SWITCH_INPUT_REGISTER2 to get - * the various cs values. - */ -static u8 get_gpmc0_type(void) -{ -	u8 cs = 0; -	void __iomem *fpga_map_addr; - -	fpga_map_addr = ioremap(DEBUG_BASE, 4096); -	if (!fpga_map_addr) -		return -ENOMEM; - -	if (!(readw_relaxed(fpga_map_addr + REG_FPGA_REV))) -		/* we dont have an DEBUG FPGA??? */ -		/* Depend on #defines!! default to strata boot return param */ -		goto unmap; - -	/* S8-DIP-OFF = 1, S8-DIP-ON = 0 */ -	cs = readw_relaxed(fpga_map_addr + REG_FPGA_DIP_SWITCH_INPUT2) & 0xf; - -	/* ES2.0 SDP's onwards 4 dip switches are provided for CS */ -	if (omap_rev() >= OMAP3430_REV_ES1_0) -		/* change (S8-1:4=DS-2:0) to (S8-4:1=DS-2:0) */ -		cs = ((cs & 8) >> 3) | ((cs & 4) >> 1) | -			((cs & 2) << 1) | ((cs & 1) << 3); -	else -		/* change (S8-1:3=DS-2:0) to (S8-3:1=DS-2:0) */ -		cs = ((cs & 4) >> 2) | (cs & 2) | ((cs & 1) << 2); -unmap: -	iounmap(fpga_map_addr); -	return cs; -} - -/** - * board_flash_init - Identify devices connected to GPMC and register. - * - * @return - void. - */ -void __init board_flash_init(struct flash_partitions partition_info[], -			char chip_sel_board[][GPMC_CS_NUM], int nand_type) -{ -	u8		cs = 0; -	u8		norcs = GPMC_CS_NUM + 1; -	u8		nandcs = GPMC_CS_NUM + 1; -	u8		onenandcs = GPMC_CS_NUM + 1; -	u8		idx; -	unsigned char	*config_sel = NULL; - -	/* REVISIT: Is this return correct idx for 2430 SDP? -	 * for which cs configuration matches for 2430 SDP? -	 */ -	idx = get_gpmc0_type(); -	if (idx >= MAX_SUPPORTED_GPMC_CONFIG) { -		pr_err("%s: Invalid chip select: %d\n", __func__, cs); -		return; -	} -	config_sel = (unsigned char *)(chip_sel_board[idx]); - -	while (cs < GPMC_CS_NUM) { -		switch (config_sel[cs]) { -		case PDC_NOR: -			if (norcs > GPMC_CS_NUM) -				norcs = cs; -			break; -		case PDC_NAND: -			if (nandcs > GPMC_CS_NUM) -				nandcs = cs; -			break; -		case PDC_ONENAND: -			if (onenandcs > GPMC_CS_NUM) -				onenandcs = cs; -			break; -		} -		cs++; -	} - -	if (norcs > GPMC_CS_NUM) -		pr_err("NOR: Unable to find configuration in GPMC\n"); -	else -		board_nor_init(partition_info[0].parts, -				partition_info[0].nr_parts, norcs); - -	if (onenandcs > GPMC_CS_NUM) -		pr_err("OneNAND: Unable to find configuration in GPMC\n"); -	else -		board_onenand_init(partition_info[1].parts, -					partition_info[1].nr_parts, onenandcs); - -	if (nandcs > GPMC_CS_NUM) -		pr_err("NAND: Unable to find configuration in GPMC\n"); -	else -		board_nand_init(partition_info[2].parts, -			partition_info[2].nr_parts, nandcs, -			nand_type, nand_default_timings); -}  |