Remove now dead code.
Signed-off-by: Ladislav Michl <ladis@xxxxxxxxxxxxxx>
---
arch/arm/mach-omap2/Makefile | 3 -
arch/arm/mach-omap2/gpmc-onenand.c | 349 ------------------------
include/linux/platform_data/mtd-onenand-omap2.h | 34 ---
3 files changed, 386 deletions(-)
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index b3b3b3a19183..bbf22e298cb0 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -234,6 +234,3 @@ obj-y += $(omap-hsmmc-m) $(omap-hsmmc-y)
obj-y += omap_phy_internal.o
obj-$(CONFIG_MACH_OMAP2_TUSB6010) += usb-tusb6010.o
-
-onenand-$(CONFIG_MTD_ONENAND_OMAP2) := gpmc-onenand.o
-obj-y += $(onenand-m) $(onenand-y)
diff --git a/arch/arm/mach-omap2/gpmc-onenand.c b/arch/arm/mach-omap2/gpmc-onenand.c
deleted file mode 100644
index 2b28cc95dda4..000000000000
--- a/arch/arm/mach-omap2/gpmc-onenand.c
+++ /dev/null
@@ -1,349 +0,0 @@
-/*
- * linux/arch/arm/mach-omap2/gpmc-onenand.c
- *
- * Copyright (C) 2006 - 2009 Nokia Corporation
- * Contacts: Juha Yrjola
- * Tony Lindgren
- *
- * 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/string.h>
-#include <linux/kernel.h>
-#include <linux/platform_device.h>
-#include <linux/mtd/onenand_regs.h>
-#include <linux/io.h>
-#include <linux/omap-gpmc.h>
-#include <linux/platform_data/mtd-onenand-omap2.h>
-#include <linux/err.h>
-
-#include <asm/mach/flash.h>
-
-#include "soc.h"
-
-#define ONENAND_IO_SIZE SZ_128K
-
-static struct omap_onenand_platform_data *gpmc_onenand_data;
-
-static struct resource gpmc_onenand_resource = {
- .flags = IORESOURCE_MEM,
-};
-
-static struct platform_device gpmc_onenand_device = {
- .name = "omap2-onenand",
- .id = -1,
- .num_resources = 1,
- .resource = &gpmc_onenand_resource,
-};
-
-static void omap2_onenand_calc_async_timings(struct gpmc_timings *t,
- struct gpmc_settings *s)
-{
- struct gpmc_device_timings dev_t;
- const int t_cer = 15;
- const int t_avdp = 12;
- const int t_aavdh = 7;
- const int t_ce = 76;
- const int t_aa = 76;
- const int t_oe = 20;
- const int t_cez = 20; /* max of t_cez, t_oez */
- const int t_wpl = 40;
- const int t_wph = 30;
-
- memset(&dev_t, 0, sizeof(dev_t));
-
- dev_t.t_avdp_r = max_t(int, t_avdp, t_cer) * 1000;
- dev_t.t_avdp_w = dev_t.t_avdp_r;
- dev_t.t_aavdh = t_aavdh * 1000;
- dev_t.t_aa = t_aa * 1000;
- dev_t.t_ce = t_ce * 1000;
- dev_t.t_oe = t_oe * 1000;
- dev_t.t_cez_r = t_cez * 1000;
- dev_t.t_cez_w = dev_t.t_cez_r;
- dev_t.t_wpl = t_wpl * 1000;
- dev_t.t_wph = t_wph * 1000;
-
- gpmc_calc_timings(t, s, &dev_t);
-}
-
-static void omap2_onenand_set_async_mode(void __iomem *onenand_base)
-{
- u32 reg;
-
- /* Ensure sync read and sync write are disabled */
- reg = readw(onenand_base + ONENAND_REG_SYS_CFG1);
- reg &= ~ONENAND_SYS_CFG1_SYNC_READ & ~ONENAND_SYS_CFG1_SYNC_WRITE;
- writew(reg, onenand_base + ONENAND_REG_SYS_CFG1);
-}
-
-static void set_onenand_cfg(void __iomem *onenand_base,
- bool sr, bool sw, int latency)
-{
- u32 reg = ONENAND_SYS_CFG1_RDY | ONENAND_SYS_CFG1_INT;
-
- reg |= (latency << ONENAND_SYS_CFG1_BRL_SHIFT) |
- ONENAND_SYS_CFG1_BL_16;
- if (latency > 5)
- reg |= ONENAND_SYS_CFG1_HF;
- if (latency > 7)
- reg |= ONENAND_SYS_CFG1_VHF;
- if (sr)
- reg |= ONENAND_SYS_CFG1_SYNC_READ;
- if (sw)
- reg |= ONENAND_SYS_CFG1_SYNC_WRITE;
-
- writew(reg, onenand_base + ONENAND_REG_SYS_CFG1);
-}
-
-static int omap2_onenand_get_freq(struct omap_onenand_platform_data *cfg,
- void __iomem *onenand_base)
-{
- u16 ver = readw(onenand_base + ONENAND_REG_VERSION_ID);
- int freq;
-
- switch ((ver >> 4) & 0xf) {
- case 0:
- freq = 40;
- break;
- case 1:
- freq = 54;
- break;
- case 2:
- freq = 66;
- break;
- case 3:
- freq = 83;
- break;
- case 4:
- freq = 104;
- break;
- default:
- pr_err("onenand rate not detected, bad GPMC async timings?\n");
- freq = 0;
- }
-
- return freq;
-}
-
-static int omap2_onenand_calc_sync_timings(struct gpmc_timings *t,
- struct gpmc_settings *s,
- int freq)
-{
- struct gpmc_device_timings dev_t;
- const int t_cer = 15;
- const int t_avdp = 12;
- const int t_cez = 20; /* max of t_cez, t_oez */
- const int t_wpl = 40;
- const int t_wph = 30;
- int min_gpmc_clk_period, t_ces, t_avds, t_avdh, t_ach, t_aavdh, t_rdyo;
- int div, gpmc_clk_ns, latency;
-
- if (!s->sync_read && !s->sync_write)
- return 0;
-
- switch (freq) {
- case 104:
- min_gpmc_clk_period = 9600; /* 104 MHz */
- t_ces = 3;
- t_avds = 4;
- t_avdh = 2;
- t_ach = 3;
- t_aavdh = 6;
- t_rdyo = 6;
- break;
- case 83:
- min_gpmc_clk_period = 12000; /* 83 MHz */
- t_ces = 5;
- t_avds = 4;
- t_avdh = 2;
- t_ach = 6;
- t_aavdh = 6;
- t_rdyo = 9;
- break;
- case 66:
- min_gpmc_clk_period = 15000; /* 66 MHz */
- t_ces = 6;
- t_avds = 5;
- t_avdh = 2;
- t_ach = 6;
- t_aavdh = 6;
- t_rdyo = 11;
- break;
- default:
- min_gpmc_clk_period = 18500; /* 54 MHz */
- t_ces = 7;
- t_avds = 7;
- t_avdh = 7;
- t_ach = 9;
- t_aavdh = 7;
- t_rdyo = 15;
- s->sync_write = false;
- s->burst_write = false;
- break;
- }
-
- div = gpmc_calc_divider(min_gpmc_clk_period);
- gpmc_clk_ns = gpmc_ticks_to_ns(div);
- if (gpmc_clk_ns < 12) /* >83 MHz */
- latency = 8;
- else if (gpmc_clk_ns < 15) /* >66 MHz */
- latency = 6;
- else if (gpmc_clk_ns >= 25) /* 40 MHz */
- latency = 3;
- else
- latency = 4;
-
- /* Set synchronous read timings */
- memset(&dev_t, 0, sizeof(dev_t));
-
- if (!s->sync_write) {
- dev_t.t_avdp_w = max(t_avdp, t_cer) * 1000;
- dev_t.t_wpl = t_wpl * 1000;
- dev_t.t_wph = t_wph * 1000;
- dev_t.t_aavdh = t_aavdh * 1000;
- }
- dev_t.ce_xdelay = true;
- dev_t.avd_xdelay = true;
- dev_t.oe_xdelay = true;
- dev_t.we_xdelay = true;
- dev_t.clk = min_gpmc_clk_period;
- dev_t.t_bacc = dev_t.clk;
- dev_t.t_ces = t_ces * 1000;
- dev_t.t_avds = t_avds * 1000;
- dev_t.t_avdh = t_avdh * 1000;
- dev_t.t_ach = t_ach * 1000;
- dev_t.cyc_iaa = (latency + 1);
- dev_t.t_cez_r = t_cez * 1000;
- dev_t.t_cez_w = dev_t.t_cez_r;
- dev_t.cyc_aavdh_oe = 1;
- dev_t.t_rdyo = t_rdyo * 1000 + min_gpmc_clk_period;
-
- gpmc_calc_timings(t, s, &dev_t);
-
- return latency;
-}
-
-static int omap2_onenand_setup_async(void __iomem *onenand_base)
-{
- struct gpmc_timings t;
- struct gpmc_settings s;
- int ret;
-
- /*
- * Note that we need to keep sync_write set for the call to
- * omap2_onenand_set_async_mode() to work to detect the onenand
- * supported clock rate for the sync timings.
- */
- gpmc_read_settings_dt(gpmc_onenand_data->of_node, &s);
- s.sync_read = false;
- s.sync_write = true;
-
- omap2_onenand_calc_async_timings(&t, &s);
-
- ret = gpmc_cs_program_settings(gpmc_onenand_data->cs, &s);
- if (ret < 0)
- return ret;
-
- ret = gpmc_cs_set_timings(gpmc_onenand_data->cs, &t, &s);
- if (ret < 0)
- return ret;
-
- omap2_onenand_set_async_mode(onenand_base);
-
- return 0;
-}
-
-static int omap2_onenand_setup_sync(void __iomem *onenand_base, int *freq_ptr)
-{
- int ret, latency, freq = *freq_ptr;
- struct gpmc_timings t;
- struct gpmc_settings s;
-
- if (!freq) {
- /* Very first call freq is not known */
- freq = omap2_onenand_get_freq(gpmc_onenand_data, onenand_base);
- if (!freq)
- return -ENODEV;
- }
-
- gpmc_read_settings_dt(gpmc_onenand_data->of_node, &s);
-
- latency = omap2_onenand_calc_sync_timings(&t, &s, freq);
- if (latency > 0) {
- ret = gpmc_cs_program_settings(gpmc_onenand_data->cs, &s);
- if (ret < 0)
- return ret;
-
- ret = gpmc_cs_set_timings(gpmc_onenand_data->cs, &t, &s);
- if (ret < 0)
- return ret;
-
- set_onenand_cfg(onenand_base, s.sync_read, s.sync_write,
- latency);
- }
-
- *freq_ptr = freq;
-
- return 0;
-}
-
-static int gpmc_onenand_setup(void __iomem *onenand_base, int *freq_ptr)
-{
- struct device *dev = &gpmc_onenand_device.dev;
- int ret;
-
- ret = omap2_onenand_setup_async(onenand_base);
- if (ret) {
- dev_err(dev, "unable to set to async mode\n");
- return ret;
- }
-
- ret = omap2_onenand_setup_sync(onenand_base, freq_ptr);
- if (ret)
- dev_err(dev, "unable to set to sync mode\n");
- return ret;
-}
-
-int gpmc_omap_onenand_init(struct omap_onenand_platform_data *_onenand_data)
-{
- gpmc_onenand_data = _onenand_data;
- gpmc_onenand_data->onenand_setup = gpmc_onenand_setup;
- gpmc_onenand_device.dev.platform_data = gpmc_onenand_data;
-
- if (cpu_is_omap34xx())
- gpmc_onenand_data->flags |= ONENAND_IN_OMAP34XX;
- else
- gpmc_onenand_data->flags &= ~ONENAND_IN_OMAP34XX;
-
- return 0;
-
-}
-
-int gpmc_onenand_init(struct omap_onenand_platform_data *_onenand_data)
-{
- int err;
- struct device *dev = &gpmc_onenand_device.dev;
-
- gpmc_omap_onenand_init(_onenand_data);
-
- err = gpmc_cs_request(gpmc_onenand_data->cs, ONENAND_IO_SIZE,
- (unsigned long *)&gpmc_onenand_resource.start);
- if (err < 0) {
- dev_err(dev, "Cannot request GPMC CS %d, error %d\n",
- gpmc_onenand_data->cs, err);
- return err;
- }
-
- gpmc_onenand_resource.end = gpmc_onenand_resource.start +
- ONENAND_IO_SIZE - 1;
-
- err = platform_device_register(&gpmc_onenand_device);
- if (err) {
- dev_err(dev, "Unable to register OneNAND device\n");
- gpmc_cs_free(gpmc_onenand_data->cs);
- }
-
- return err;
-}
diff --git a/include/linux/platform_data/mtd-onenand-omap2.h b/include/linux/platform_data/mtd-onenand-omap2.h
deleted file mode 100644
index 56ff0e6f5ad1..000000000000
--- a/include/linux/platform_data/mtd-onenand-omap2.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Copyright (C) 2006 Nokia Corporation
- * Author: Juha Yrjola
- *
- * 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.
- */
-
-#ifndef __MTD_ONENAND_OMAP2_H
-#define __MTD_ONENAND_OMAP2_H
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/partitions.h>
-
-#define ONENAND_SYNC_READ (1 << 0)
-#define ONENAND_SYNC_READWRITE (1 << 1)
-#define ONENAND_IN_OMAP34XX (1 << 2)
-
-struct omap_onenand_platform_data {
- int cs;
- int gpio_irq;
- struct mtd_partition *parts;
- int nr_parts;
- int (*onenand_setup)(void __iomem *, int *freq_ptr);
- int dma_channel;
- u8 flags;
- u8 regulator_can_sleep;
- u8 skip_initial_unlocking;
-
- /* for passing the partitions */
- struct device_node *of_node;
-};
-#endif
--
2.11.0
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