[PATCH 03/12] ARM: OMAP2+: Remove legacy hsmmc.c
Tony Lindgren
tony at atomide.com
Mon Nov 25 19:14:18 EST 2013
We can now initialize the hsmmc using devicetree
Signed-off-by: Tony Lindgren <tony at atomide.com>
---
arch/arm/mach-omap2/Makefile | 3 -
arch/arm/mach-omap2/hsmmc.c | 518 -------------------------------------------
2 files changed, 521 deletions(-)
delete mode 100644 arch/arm/mach-omap2/hsmmc.c
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index bb9629e..a5e13c0 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -243,9 +243,6 @@ 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)
-
obj-y += usb-musb.o
obj-y += omap_phy_internal.o
diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
deleted file mode 100644
index 07d4c7b..0000000
--- a/arch/arm/mach-omap2/hsmmc.c
+++ /dev/null
@@ -1,518 +0,0 @@
-/*
- * linux/arch/arm/mach-omap2/hsmmc.c
- *
- * Copyright (C) 2007-2008 Texas Instruments
- * Copyright (C) 2008 Nokia Corporation
- * Author: 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 <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/delay.h>
-#include <linux/gpio.h>
-#include <linux/platform_data/gpio-omap.h>
-
-#include "soc.h"
-#include "omap_device.h"
-#include "omap-pm.h"
-
-#include "mux.h"
-#include "mmc.h"
-#include "hsmmc.h"
-#include "control.h"
-
-#if defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)
-
-static u16 control_pbias_offset;
-static u16 control_devconf1_offset;
-
-#define HSMMC_NAME_LEN 9
-
-#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM)
-
-static int hsmmc_get_context_loss(struct device *dev)
-{
- return omap_pm_get_dev_context_loss_count(dev);
-}
-
-#else
-#define hsmmc_get_context_loss NULL
-#endif
-
-static void omap_hsmmc1_before_set_reg(struct device *dev, int slot,
- int power_on, int vdd)
-{
- u32 reg, prog_io;
- struct omap_mmc_platform_data *mmc = dev->platform_data;
-
- if (mmc->slots[0].remux)
- mmc->slots[0].remux(dev, slot, power_on);
-
- /*
- * Assume we power both OMAP VMMC1 (for CMD, CLK, DAT0..3) and the
- * card with Vcc regulator (from twl4030 or whatever). OMAP has both
- * 1.8V and 3.0V modes, controlled by the PBIAS register.
- *
- * In 8-bit modes, OMAP VMMC1A (for DAT4..7) needs a supply, which
- * is most naturally TWL VSIM; those pins also use PBIAS.
- *
- * FIXME handle VMMC1A as needed ...
- */
- if (power_on) {
- if (cpu_is_omap2430()) {
- reg = omap_ctrl_readl(OMAP243X_CONTROL_DEVCONF1);
- if ((1 << vdd) >= MMC_VDD_30_31)
- reg |= OMAP243X_MMC1_ACTIVE_OVERWRITE;
- else
- reg &= ~OMAP243X_MMC1_ACTIVE_OVERWRITE;
- omap_ctrl_writel(reg, OMAP243X_CONTROL_DEVCONF1);
- }
-
- if (mmc->slots[0].internal_clock) {
- reg = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
- reg |= OMAP2_MMCSDIO1ADPCLKISEL;
- omap_ctrl_writel(reg, OMAP2_CONTROL_DEVCONF0);
- }
-
- reg = omap_ctrl_readl(control_pbias_offset);
- if (cpu_is_omap3630()) {
- /* Set MMC I/O to 52Mhz */
- prog_io = omap_ctrl_readl(OMAP343X_CONTROL_PROG_IO1);
- prog_io |= OMAP3630_PRG_SDMMC1_SPEEDCTRL;
- omap_ctrl_writel(prog_io, OMAP343X_CONTROL_PROG_IO1);
- } else {
- reg |= OMAP2_PBIASSPEEDCTRL0;
- }
- reg &= ~OMAP2_PBIASLITEPWRDNZ0;
- omap_ctrl_writel(reg, control_pbias_offset);
- } else {
- reg = omap_ctrl_readl(control_pbias_offset);
- reg &= ~OMAP2_PBIASLITEPWRDNZ0;
- omap_ctrl_writel(reg, control_pbias_offset);
- }
-}
-
-static void omap_hsmmc1_after_set_reg(struct device *dev, int slot,
- int power_on, int vdd)
-{
- u32 reg;
-
- /* 100ms delay required for PBIAS configuration */
- msleep(100);
-
- if (power_on) {
- reg = omap_ctrl_readl(control_pbias_offset);
- reg |= (OMAP2_PBIASLITEPWRDNZ0 | OMAP2_PBIASSPEEDCTRL0);
- if ((1 << vdd) <= MMC_VDD_165_195)
- reg &= ~OMAP2_PBIASLITEVMODE0;
- else
- reg |= OMAP2_PBIASLITEVMODE0;
- omap_ctrl_writel(reg, control_pbias_offset);
- } else {
- reg = omap_ctrl_readl(control_pbias_offset);
- reg |= (OMAP2_PBIASSPEEDCTRL0 | OMAP2_PBIASLITEPWRDNZ0 |
- OMAP2_PBIASLITEVMODE0);
- omap_ctrl_writel(reg, control_pbias_offset);
- }
-}
-
-static void hsmmc2_select_input_clk_src(struct omap_mmc_platform_data *mmc)
-{
- u32 reg;
-
- reg = omap_ctrl_readl(control_devconf1_offset);
- if (mmc->slots[0].internal_clock)
- reg |= OMAP2_MMCSDIO2ADPCLKISEL;
- else
- reg &= ~OMAP2_MMCSDIO2ADPCLKISEL;
- omap_ctrl_writel(reg, control_devconf1_offset);
-}
-
-static void hsmmc2_before_set_reg(struct device *dev, int slot,
- int power_on, int vdd)
-{
- struct omap_mmc_platform_data *mmc = dev->platform_data;
-
- if (mmc->slots[0].remux)
- mmc->slots[0].remux(dev, slot, power_on);
-
- if (power_on)
- hsmmc2_select_input_clk_src(mmc);
-}
-
-static int am35x_hsmmc2_set_power(struct device *dev, int slot,
- int power_on, int vdd)
-{
- struct omap_mmc_platform_data *mmc = dev->platform_data;
-
- if (power_on)
- hsmmc2_select_input_clk_src(mmc);
-
- return 0;
-}
-
-static int nop_mmc_set_power(struct device *dev, int slot, int power_on,
- int vdd)
-{
- return 0;
-}
-
-static inline void omap_hsmmc_mux(struct omap_mmc_platform_data *mmc_controller,
- int controller_nr)
-{
- if (gpio_is_valid(mmc_controller->slots[0].switch_pin) &&
- (mmc_controller->slots[0].switch_pin < OMAP_MAX_GPIO_LINES))
- omap_mux_init_gpio(mmc_controller->slots[0].switch_pin,
- OMAP_PIN_INPUT_PULLUP);
- if (gpio_is_valid(mmc_controller->slots[0].gpio_wp) &&
- (mmc_controller->slots[0].gpio_wp < OMAP_MAX_GPIO_LINES))
- omap_mux_init_gpio(mmc_controller->slots[0].gpio_wp,
- OMAP_PIN_INPUT_PULLUP);
- if (cpu_is_omap34xx()) {
- if (controller_nr == 0) {
- omap_mux_init_signal("sdmmc1_clk",
- OMAP_PIN_INPUT_PULLUP);
- omap_mux_init_signal("sdmmc1_cmd",
- OMAP_PIN_INPUT_PULLUP);
- omap_mux_init_signal("sdmmc1_dat0",
- OMAP_PIN_INPUT_PULLUP);
- if (mmc_controller->slots[0].caps &
- (MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA)) {
- omap_mux_init_signal("sdmmc1_dat1",
- OMAP_PIN_INPUT_PULLUP);
- omap_mux_init_signal("sdmmc1_dat2",
- OMAP_PIN_INPUT_PULLUP);
- omap_mux_init_signal("sdmmc1_dat3",
- OMAP_PIN_INPUT_PULLUP);
- }
- if (mmc_controller->slots[0].caps &
- MMC_CAP_8_BIT_DATA) {
- omap_mux_init_signal("sdmmc1_dat4",
- OMAP_PIN_INPUT_PULLUP);
- omap_mux_init_signal("sdmmc1_dat5",
- OMAP_PIN_INPUT_PULLUP);
- omap_mux_init_signal("sdmmc1_dat6",
- OMAP_PIN_INPUT_PULLUP);
- omap_mux_init_signal("sdmmc1_dat7",
- OMAP_PIN_INPUT_PULLUP);
- }
- }
- if (controller_nr == 1) {
- /* MMC2 */
- omap_mux_init_signal("sdmmc2_clk",
- OMAP_PIN_INPUT_PULLUP);
- omap_mux_init_signal("sdmmc2_cmd",
- OMAP_PIN_INPUT_PULLUP);
- omap_mux_init_signal("sdmmc2_dat0",
- OMAP_PIN_INPUT_PULLUP);
-
- /*
- * For 8 wire configurations, Lines DAT4, 5, 6 and 7
- * need to be muxed in the board-*.c files
- */
- if (mmc_controller->slots[0].caps &
- (MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA)) {
- omap_mux_init_signal("sdmmc2_dat1",
- OMAP_PIN_INPUT_PULLUP);
- omap_mux_init_signal("sdmmc2_dat2",
- OMAP_PIN_INPUT_PULLUP);
- omap_mux_init_signal("sdmmc2_dat3",
- OMAP_PIN_INPUT_PULLUP);
- }
- if (mmc_controller->slots[0].caps &
- MMC_CAP_8_BIT_DATA) {
- omap_mux_init_signal("sdmmc2_dat4.sdmmc2_dat4",
- OMAP_PIN_INPUT_PULLUP);
- omap_mux_init_signal("sdmmc2_dat5.sdmmc2_dat5",
- OMAP_PIN_INPUT_PULLUP);
- omap_mux_init_signal("sdmmc2_dat6.sdmmc2_dat6",
- OMAP_PIN_INPUT_PULLUP);
- omap_mux_init_signal("sdmmc2_dat7.sdmmc2_dat7",
- OMAP_PIN_INPUT_PULLUP);
- }
- }
-
- /*
- * For MMC3 the pins need to be muxed in the board-*.c files
- */
- }
-}
-
-static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
- struct omap_mmc_platform_data *mmc)
-{
- char *hc_name;
-
- hc_name = kzalloc(sizeof(char) * (HSMMC_NAME_LEN + 1), GFP_KERNEL);
- if (!hc_name) {
- pr_err("Cannot allocate memory for controller slot name\n");
- kfree(hc_name);
- return -ENOMEM;
- }
-
- if (c->name)
- strncpy(hc_name, c->name, HSMMC_NAME_LEN);
- else
- snprintf(hc_name, (HSMMC_NAME_LEN + 1), "mmc%islot%i",
- c->mmc, 1);
- mmc->slots[0].name = hc_name;
- mmc->nr_slots = 1;
- mmc->slots[0].caps = c->caps;
- mmc->slots[0].pm_caps = c->pm_caps;
- mmc->slots[0].internal_clock = !c->ext_clock;
- mmc->max_freq = c->max_freq;
- mmc->reg_offset = 0;
- mmc->get_context_loss_count = hsmmc_get_context_loss;
-
- mmc->slots[0].switch_pin = c->gpio_cd;
- mmc->slots[0].gpio_wp = c->gpio_wp;
-
- mmc->slots[0].remux = c->remux;
- mmc->slots[0].init_card = c->init_card;
-
- if (c->cover_only)
- mmc->slots[0].cover = 1;
-
- if (c->nonremovable)
- mmc->slots[0].nonremovable = 1;
-
- if (c->power_saving)
- mmc->slots[0].power_saving = 1;
-
- if (c->no_off)
- mmc->slots[0].no_off = 1;
-
- if (c->no_off_init)
- mmc->slots[0].no_regulator_off_init = c->no_off_init;
-
- if (c->vcc_aux_disable_is_sleep)
- mmc->slots[0].vcc_aux_disable_is_sleep = 1;
-
- /*
- * NOTE: MMC slots should have a Vcc regulator set up.
- * This may be from a TWL4030-family chip, another
- * controllable regulator, or a fixed supply.
- *
- * temporary HACK: ocr_mask instead of fixed supply
- */
- if (soc_is_am35xx())
- mmc->slots[0].ocr_mask = MMC_VDD_165_195 |
- MMC_VDD_26_27 |
- MMC_VDD_27_28 |
- MMC_VDD_29_30 |
- MMC_VDD_30_31 |
- MMC_VDD_31_32;
- else
- mmc->slots[0].ocr_mask = c->ocr_mask;
-
- if (!soc_is_am35xx())
- mmc->slots[0].features |= HSMMC_HAS_PBIAS;
-
- switch (c->mmc) {
- case 1:
- if (mmc->slots[0].features & HSMMC_HAS_PBIAS) {
- /* on-chip level shifting via PBIAS0/PBIAS1 */
- mmc->slots[0].before_set_reg =
- omap_hsmmc1_before_set_reg;
- mmc->slots[0].after_set_reg =
- omap_hsmmc1_after_set_reg;
- }
-
- if (soc_is_am35xx())
- mmc->slots[0].set_power = nop_mmc_set_power;
-
- /* OMAP3630 HSMMC1 supports only 4-bit */
- if (cpu_is_omap3630() &&
- (c->caps & MMC_CAP_8_BIT_DATA)) {
- c->caps &= ~MMC_CAP_8_BIT_DATA;
- c->caps |= MMC_CAP_4_BIT_DATA;
- mmc->slots[0].caps = c->caps;
- }
- break;
- case 2:
- if (soc_is_am35xx())
- mmc->slots[0].set_power = am35x_hsmmc2_set_power;
-
- if (c->ext_clock)
- c->transceiver = 1;
- if (c->transceiver && (c->caps & MMC_CAP_8_BIT_DATA)) {
- c->caps &= ~MMC_CAP_8_BIT_DATA;
- c->caps |= MMC_CAP_4_BIT_DATA;
- }
- if (mmc->slots[0].features & HSMMC_HAS_PBIAS) {
- /* off-chip level shifting, or none */
- mmc->slots[0].before_set_reg = hsmmc2_before_set_reg;
- mmc->slots[0].after_set_reg = NULL;
- }
- break;
- case 3:
- case 4:
- case 5:
- mmc->slots[0].before_set_reg = NULL;
- mmc->slots[0].after_set_reg = NULL;
- break;
- default:
- pr_err("MMC%d configuration not supported!\n", c->mmc);
- kfree(hc_name);
- return -ENODEV;
- }
- return 0;
-}
-
-static int omap_hsmmc_done;
-
-void omap_hsmmc_late_init(struct omap2_hsmmc_info *c)
-{
- struct platform_device *pdev;
- struct omap_mmc_platform_data *mmc_pdata;
- int res;
-
- if (omap_hsmmc_done != 1)
- return;
-
- omap_hsmmc_done++;
-
- for (; c->mmc; c++) {
- if (!c->deferred)
- continue;
-
- pdev = c->pdev;
- if (!pdev)
- continue;
-
- mmc_pdata = pdev->dev.platform_data;
- if (!mmc_pdata)
- continue;
-
- mmc_pdata->slots[0].switch_pin = c->gpio_cd;
- mmc_pdata->slots[0].gpio_wp = c->gpio_wp;
-
- res = omap_device_register(pdev);
- if (res)
- pr_err("Could not late init MMC %s\n",
- c->name);
- }
-}
-
-#define MAX_OMAP_MMC_HWMOD_NAME_LEN 16
-
-static void __init omap_hsmmc_init_one(struct omap2_hsmmc_info *hsmmcinfo,
- int ctrl_nr)
-{
- struct omap_hwmod *oh;
- struct omap_hwmod *ohs[1];
- struct omap_device *od;
- struct platform_device *pdev;
- char oh_name[MAX_OMAP_MMC_HWMOD_NAME_LEN];
- struct omap_mmc_platform_data *mmc_data;
- struct omap_mmc_dev_attr *mmc_dev_attr;
- char *name;
- int res;
-
- mmc_data = kzalloc(sizeof(struct omap_mmc_platform_data), GFP_KERNEL);
- if (!mmc_data) {
- pr_err("Cannot allocate memory for mmc device!\n");
- return;
- }
-
- res = omap_hsmmc_pdata_init(hsmmcinfo, mmc_data);
- if (res < 0)
- goto free_mmc;
-
- omap_hsmmc_mux(mmc_data, (ctrl_nr - 1));
-
- name = "omap_hsmmc";
- res = snprintf(oh_name, MAX_OMAP_MMC_HWMOD_NAME_LEN,
- "mmc%d", ctrl_nr);
- WARN(res >= MAX_OMAP_MMC_HWMOD_NAME_LEN,
- "String buffer overflow in MMC%d device setup\n", ctrl_nr);
-
- oh = omap_hwmod_lookup(oh_name);
- if (!oh) {
- pr_err("Could not look up %s\n", oh_name);
- goto free_name;
- }
- ohs[0] = oh;
- if (oh->dev_attr != NULL) {
- mmc_dev_attr = oh->dev_attr;
- mmc_data->controller_flags = mmc_dev_attr->flags;
- /*
- * erratum 2.1.1.128 doesn't apply if board has
- * a transceiver is attached
- */
- if (hsmmcinfo->transceiver)
- mmc_data->controller_flags &=
- ~OMAP_HSMMC_BROKEN_MULTIBLOCK_READ;
- }
-
- pdev = platform_device_alloc(name, ctrl_nr - 1);
- if (!pdev) {
- pr_err("Could not allocate pdev for %s\n", name);
- goto free_name;
- }
- dev_set_name(&pdev->dev, "%s.%d", pdev->name, pdev->id);
-
- od = omap_device_alloc(pdev, ohs, 1);
- if (IS_ERR(od)) {
- pr_err("Could not allocate od for %s\n", name);
- goto put_pdev;
- }
-
- res = platform_device_add_data(pdev, mmc_data,
- sizeof(struct omap_mmc_platform_data));
- if (res) {
- pr_err("Could not add pdata for %s\n", name);
- goto put_pdev;
- }
-
- hsmmcinfo->pdev = pdev;
-
- if (hsmmcinfo->deferred)
- goto free_mmc;
-
- res = omap_device_register(pdev);
- if (res) {
- pr_err("Could not register od for %s\n", name);
- goto free_od;
- }
-
- goto free_mmc;
-
-free_od:
- omap_device_delete(od);
-
-put_pdev:
- platform_device_put(pdev);
-
-free_name:
- kfree(mmc_data->slots[0].name);
-
-free_mmc:
- kfree(mmc_data);
-}
-
-void __init omap_hsmmc_init(struct omap2_hsmmc_info *controllers)
-{
- if (omap_hsmmc_done)
- return;
-
- omap_hsmmc_done = 1;
-
- if (cpu_is_omap2430()) {
- control_pbias_offset = OMAP243X_CONTROL_PBIAS_LITE;
- control_devconf1_offset = OMAP243X_CONTROL_DEVCONF1;
- } else {
- control_pbias_offset = OMAP343X_CONTROL_PBIAS_LITE;
- control_devconf1_offset = OMAP343X_CONTROL_DEVCONF1;
- }
-
- for (; controllers->mmc; controllers++)
- omap_hsmmc_init_one(controllers, controllers->mmc);
-
-}
-
-#endif
--
1.8.1.1
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