From 6a6e640bc191d1d026fd09c4d8688259aa6d373f Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Fri, 21 Oct 2016 03:43:35 -0700 Subject: [PATCH] ARM: OMAP2+: Remove legacy board-flash.c Legacy board files in mach-omap2 used the helper functions board_{nor,nand,onenand}_init() to initialize the flash devices attached to the GPMC. With Device Tree booting the initialization is handled by the GPMC driver gpmc_probe_*_child() functions so this code is not needed anymore now that OMAP2+ is DT-only. Signed-off-by: Javier Martinez Canillas Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/Makefile | 4 - arch/arm/mach-omap2/board-flash.c | 242 ------------------------------ arch/arm/mach-omap2/board-flash.h | 56 ------- 3 files changed, 302 deletions(-) delete mode 100644 arch/arm/mach-omap2/board-flash.c delete mode 100644 arch/arm/mach-omap2/board-flash.h diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index e6bf09a5c987..7634dff46e29 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -232,10 +232,6 @@ obj-$(CONFIG_MACH_NOKIA_N8X0) += board-n8x0.o # Platform specific device init code -omap-flash-$(CONFIG_MTD_NAND_OMAP2) := board-flash.o -omap-flash-$(CONFIG_MTD_ONENAND_OMAP2) := board-flash.o -obj-y += $(omap-flash-y) $(omap-flash-m) - omap-hsmmc-$(CONFIG_MMC_OMAP_HS) := hsmmc.o obj-y += $(omap-hsmmc-m) $(omap-hsmmc-y) 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 - * - * 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 -#include -#include -#include -#include - -#include -#include - -#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); -} diff --git a/arch/arm/mach-omap2/board-flash.h b/arch/arm/mach-omap2/board-flash.h deleted file mode 100644 index 8b39eec07318..000000000000 --- a/arch/arm/mach-omap2/board-flash.h +++ /dev/null @@ -1,56 +0,0 @@ -/* - * board-sdp.h - * - * Information structures for SDP-specific board config data - * - * Copyright (C) 2009 Nokia Corporation - * Copyright (C) 2009 Texas Instruments - * - * 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 -#include - -#define PDC_NOR 1 -#define PDC_NAND 2 -#define PDC_ONENAND 3 -#define DBG_MPDB 4 - -struct flash_partitions { - struct mtd_partition *parts; - int nr_parts; -}; - -#if IS_ENABLED(CONFIG_MTD_NAND_OMAP2) || IS_ENABLED(CONFIG_MTD_ONENAND_OMAP2) -extern void board_flash_init(struct flash_partitions [], - char chip_sel[][GPMC_CS_NUM], int nand_type); -#else -static inline void board_flash_init(struct flash_partitions part[], - char chip_sel[][GPMC_CS_NUM], int nand_type) -{ -} -#endif - -#if IS_ENABLED(CONFIG_MTD_NAND_OMAP2) -extern void board_nand_init(struct mtd_partition *nand_parts, - u8 nr_parts, u8 cs, int nand_type, struct gpmc_timings *gpmc_t); -extern struct gpmc_timings nand_default_timings[]; -#else -static inline void board_nand_init(struct mtd_partition *nand_parts, - u8 nr_parts, u8 cs, int nand_type, struct gpmc_timings *gpmc_t) -{ -} -#define nand_default_timings NULL -#endif - -#if IS_ENABLED(CONFIG_MTD_ONENAND_OMAP2) -extern void board_onenand_init(struct mtd_partition *nand_parts, - u8 nr_parts, u8 cs); -#else -static inline void board_onenand_init(struct mtd_partition *nand_parts, - u8 nr_parts, u8 cs) -{ -} -#endif -- 2.20.1