From 6a80b30086b861b2591ba2a953042abd08c498e3 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 10 Jun 2019 16:04:39 +0200 Subject: fmc: Delete the FMC subsystem The FMC subsystem was created in 2012 with the ambition to drive development of drivers for this hardware upstream. The current implementation has architectural flaws and would need to be revamped using real hardware to something that can reuse existing kernel abstractions in the subsystems for e.g. I2C, FPGA and GPIO. We have concluded that for the mainline kernel it will be better to delete the subsystem and start over with a clean slate when/if an active maintainer steps up. For details see: https://lkml.org/lkml/2018/10/29/534 Suggested-by: Federico Vaga Cc: Pat Riehecky Acked-by: Alessandro Rubini Signed-off-by: Federico Vaga Signed-off-by: Linus Walleij --- drivers/fmc/fmc-dump.c | 58 -------------------------------------------------- 1 file changed, 58 deletions(-) delete mode 100644 drivers/fmc/fmc-dump.c (limited to 'drivers/fmc/fmc-dump.c') diff --git a/drivers/fmc/fmc-dump.c b/drivers/fmc/fmc-dump.c deleted file mode 100644 index 6c81dbde1d16..000000000000 --- a/drivers/fmc/fmc-dump.c +++ /dev/null @@ -1,58 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Copyright (C) 2013 CERN (www.cern.ch) - * Author: Alessandro Rubini - * - * This work is part of the White Rabbit project, a research effort led - * by CERN, the European Institute for Nuclear Research. - */ -#include -#include -#include -#include -#include - -static int fmc_must_dump_eeprom; -module_param_named(dump_eeprom, fmc_must_dump_eeprom, int, 0644); - -#define LINELEN 16 - -/* Dumping 8k takes oh so much: avoid duplicate lines */ -static const uint8_t *dump_line(int addr, const uint8_t *line, - const uint8_t *prev) -{ - int i; - - if (!prev || memcmp(line, prev, LINELEN)) { - pr_info("%04x: ", addr); - for (i = 0; i < LINELEN; ) { - printk(KERN_CONT "%02x", line[i]); - i++; - printk(i & 3 ? " " : i & (LINELEN - 1) ? " " : "\n"); - } - return line; - } - /* repeated line */ - if (line == prev + LINELEN) - pr_info("[...]\n"); - return prev; -} - -void fmc_dump_eeprom(const struct fmc_device *fmc) -{ - const uint8_t *line, *prev; - int i; - - if (!fmc_must_dump_eeprom) - return; - - pr_info("FMC: %s (%s), slot %i, device %s\n", dev_name(fmc->hwdev), - fmc->carrier_name, fmc->slot_id, dev_name(&fmc->dev)); - pr_info("FMC: dumping eeprom 0x%x (%i) bytes\n", fmc->eeprom_len, - fmc->eeprom_len); - - line = fmc->eeprom; - prev = NULL; - for (i = 0; i < fmc->eeprom_len; i += LINELEN, line += LINELEN) - prev = dump_line(i, line, prev); -} -- cgit v1.2.3