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078dc5194c
The OMAP2 platform data quirk is using the global GPIO numberspace
to obtain two WLAN GPIOs to drive power and xcvr reset GPIO
lines during start-up.
Rewrite the quirk to use a GPIO descriptor table so we avoid using
global GPIO numbers.
This gets rid of the final dependency on the legacy <linux/gpio.h>
header from the OMAP2/3 platforms.
Fixes: 92bf78b33b ("gpio: omap: use dynamic allocation of base")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
566 lines
15 KiB
C
566 lines
15 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Legacy platform_data quirks
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*
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* Copyright (C) 2013 Texas Instruments
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*/
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#include <linux/clk.h>
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#include <linux/davinci_emac.h>
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#include <linux/gpio/machine.h>
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#include <linux/gpio/consumer.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/of_platform.h>
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#include <linux/mmc/card.h>
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#include <linux/mmc/host.h>
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#include <linux/power/smartreflex.h>
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#include <linux/regulator/machine.h>
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#include <linux/regulator/fixed.h>
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#include <linux/platform_data/pinctrl-single.h>
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#include <linux/platform_data/hsmmc-omap.h>
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#include <linux/platform_data/iommu-omap.h>
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#include <linux/platform_data/ti-sysc.h>
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#include <linux/platform_data/wkup_m3.h>
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#include <linux/platform_data/asoc-ti-mcbsp.h>
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#include <linux/platform_data/ti-prm.h>
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#include "clockdomain.h"
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#include "common.h"
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#include "common-board-devices.h"
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#include "control.h"
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#include "omap_device.h"
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#include "omap-secure.h"
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#include "soc.h"
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static struct omap_hsmmc_platform_data __maybe_unused mmc_pdata[2];
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struct pdata_init {
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const char *compatible;
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void (*fn)(void);
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};
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static struct of_dev_auxdata omap_auxdata_lookup[];
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#ifdef CONFIG_MACH_NOKIA_N8X0
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static void __init omap2420_n8x0_legacy_init(void)
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{
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omap_auxdata_lookup[0].platform_data = n8x0_legacy_init();
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}
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#else
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#define omap2420_n8x0_legacy_init NULL
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#endif
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#ifdef CONFIG_ARCH_OMAP3
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/*
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* Configures GPIOs 126, 127 and 129 to 1.8V mode instead of 3.0V
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* mode for MMC1 in case bootloader did not configure things.
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* Note that if the pins are used for MMC1, pbias-regulator
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* manages the IO voltage.
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*/
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static void __init omap3_gpio126_127_129(void)
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{
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u32 reg;
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reg = omap_ctrl_readl(OMAP343X_CONTROL_PBIAS_LITE);
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reg &= ~OMAP343X_PBIASLITEVMODE1;
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reg |= OMAP343X_PBIASLITEPWRDNZ1;
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omap_ctrl_writel(reg, OMAP343X_CONTROL_PBIAS_LITE);
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if (cpu_is_omap3630()) {
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reg = omap_ctrl_readl(OMAP34XX_CONTROL_WKUP_CTRL);
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reg |= OMAP36XX_GPIO_IO_PWRDNZ;
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omap_ctrl_writel(reg, OMAP34XX_CONTROL_WKUP_CTRL);
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}
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}
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static void __init hsmmc2_internal_input_clk(void)
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{
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u32 reg;
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reg = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1);
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reg |= OMAP2_MMCSDIO2ADPCLKISEL;
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omap_ctrl_writel(reg, OMAP343X_CONTROL_DEVCONF1);
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}
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#ifdef CONFIG_OMAP_HWMOD
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static struct iommu_platform_data omap3_iommu_pdata = {
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.reset_name = "mmu",
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.assert_reset = omap_device_assert_hardreset,
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.deassert_reset = omap_device_deassert_hardreset,
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.device_enable = omap_device_enable,
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.device_idle = omap_device_idle,
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};
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static struct iommu_platform_data omap3_iommu_isp_pdata = {
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.device_enable = omap_device_enable,
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.device_idle = omap_device_idle,
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};
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#endif
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static void __init omap3_sbc_t3x_usb_hub_init(char *hub_name, int idx)
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{
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struct gpio_desc *d;
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/* This asserts the RESET line (reverse polarity) */
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d = gpiod_get_index(NULL, "reset", idx, GPIOD_OUT_HIGH);
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if (IS_ERR(d)) {
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pr_err("Unable to get T3x USB reset GPIO descriptor\n");
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return;
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}
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gpiod_set_consumer_name(d, hub_name);
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gpiod_export(d, 0);
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udelay(10);
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/* De-assert RESET */
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gpiod_set_value(d, 0);
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msleep(1);
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}
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static struct gpiod_lookup_table omap3_sbc_t3x_usb_gpio_table = {
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.dev_id = NULL,
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.table = {
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GPIO_LOOKUP_IDX("gpio-160-175", 7, "reset", 0,
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GPIO_ACTIVE_LOW),
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{ }
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},
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};
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static void __init omap3_sbc_t3730_legacy_init(void)
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{
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gpiod_add_lookup_table(&omap3_sbc_t3x_usb_gpio_table);
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omap3_sbc_t3x_usb_hub_init("sb-t35 usb hub", 0);
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}
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static void __init omap3_sbc_t3530_legacy_init(void)
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{
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gpiod_add_lookup_table(&omap3_sbc_t3x_usb_gpio_table);
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omap3_sbc_t3x_usb_hub_init("sb-t35 usb hub", 0);
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}
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static void __init omap3_evm_legacy_init(void)
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{
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hsmmc2_internal_input_clk();
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}
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static void am35xx_enable_emac_int(void)
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{
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u32 v;
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v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
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v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR |
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AM35XX_CPGMAC_C0_MISC_PULSE_CLR | AM35XX_CPGMAC_C0_RX_THRESH_CLR);
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omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
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omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
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}
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static void am35xx_disable_emac_int(void)
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{
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u32 v;
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v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
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v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR);
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omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
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omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
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}
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static struct emac_platform_data am35xx_emac_pdata = {
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.interrupt_enable = am35xx_enable_emac_int,
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.interrupt_disable = am35xx_disable_emac_int,
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};
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static void __init am35xx_emac_reset(void)
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{
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u32 v;
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v = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
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v &= ~AM35XX_CPGMACSS_SW_RST;
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omap_ctrl_writel(v, AM35XX_CONTROL_IP_SW_RESET);
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omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); /* OCP barrier */
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}
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static struct gpiod_lookup_table cm_t3517_wlan_gpio_table = {
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.dev_id = NULL,
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.table = {
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GPIO_LOOKUP("gpio-48-53", 8, "power",
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GPIO_ACTIVE_HIGH),
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GPIO_LOOKUP("gpio-0-15", 4, "noe",
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GPIO_ACTIVE_HIGH),
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{ }
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},
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};
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static void __init omap3_sbc_t3517_wifi_init(void)
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{
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struct gpio_desc *d;
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gpiod_add_lookup_table(&cm_t3517_wlan_gpio_table);
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/* This asserts the RESET line (reverse polarity) */
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d = gpiod_get(NULL, "power", GPIOD_OUT_HIGH);
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if (IS_ERR(d)) {
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pr_err("Unable to get CM T3517 WLAN power GPIO descriptor\n");
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} else {
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gpiod_set_consumer_name(d, "wlan pwr");
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gpiod_export(d, 0);
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}
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d = gpiod_get(NULL, "noe", GPIOD_OUT_HIGH);
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if (IS_ERR(d)) {
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pr_err("Unable to get CM T3517 WLAN XCVR NOE GPIO descriptor\n");
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} else {
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gpiod_set_consumer_name(d, "xcvr noe");
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gpiod_export(d, 0);
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}
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msleep(100);
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gpiod_set_value(d, 0);
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}
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static struct gpiod_lookup_table omap3_sbc_t3517_usb_gpio_table = {
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.dev_id = NULL,
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.table = {
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GPIO_LOOKUP_IDX("gpio-144-159", 8, "reset", 0,
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GPIO_ACTIVE_LOW),
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GPIO_LOOKUP_IDX("gpio-96-111", 2, "reset", 1,
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GPIO_ACTIVE_LOW),
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{ }
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},
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};
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static void __init omap3_sbc_t3517_legacy_init(void)
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{
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gpiod_add_lookup_table(&omap3_sbc_t3517_usb_gpio_table);
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omap3_sbc_t3x_usb_hub_init("cm-t3517 usb hub", 0);
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omap3_sbc_t3x_usb_hub_init("sb-t35 usb hub", 1);
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am35xx_emac_reset();
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hsmmc2_internal_input_clk();
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omap3_sbc_t3517_wifi_init();
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}
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static void __init am3517_evm_legacy_init(void)
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{
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am35xx_emac_reset();
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}
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static void __init nokia_n900_legacy_init(void)
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{
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hsmmc2_internal_input_clk();
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mmc_pdata[0].name = "external";
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mmc_pdata[1].name = "internal";
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if (omap_type() != OMAP2_DEVICE_TYPE_GP) {
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if (IS_ENABLED(CONFIG_ARM_ERRATA_430973)) {
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pr_info("RX-51: Enabling ARM errata 430973 workaround\n");
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/* set IBE to 1 */
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rx51_secure_update_aux_cr(BIT(6), 0);
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} else {
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pr_warn("RX-51: Not enabling ARM errata 430973 workaround\n");
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pr_warn("Thumb binaries may crash randomly without this workaround\n");
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}
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}
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}
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static void __init omap3_tao3530_legacy_init(void)
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{
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hsmmc2_internal_input_clk();
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}
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static void __init omap3_logicpd_torpedo_init(void)
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{
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omap3_gpio126_127_129();
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}
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/* omap3pandora legacy devices */
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static struct platform_device pandora_backlight = {
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.name = "pandora-backlight",
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.id = -1,
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};
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static void __init omap3_pandora_legacy_init(void)
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{
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platform_device_register(&pandora_backlight);
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}
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#endif /* CONFIG_ARCH_OMAP3 */
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#ifdef CONFIG_SOC_DRA7XX
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static struct iommu_platform_data dra7_ipu1_dsp_iommu_pdata = {
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.set_pwrdm_constraint = omap_iommu_set_pwrdm_constraint,
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};
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#endif
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static struct clockdomain *ti_sysc_find_one_clockdomain(struct clk *clk)
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{
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struct clk_hw *hw = __clk_get_hw(clk);
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struct clockdomain *clkdm = NULL;
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struct clk_hw_omap *hwclk;
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hwclk = to_clk_hw_omap(hw);
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if (!omap2_clk_is_hw_omap(hw))
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return NULL;
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if (hwclk && hwclk->clkdm_name)
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clkdm = clkdm_lookup(hwclk->clkdm_name);
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return clkdm;
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}
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/**
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* ti_sysc_clkdm_init - find clockdomain based on clock
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* @fck: device functional clock
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* @ick: device interface clock
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* @dev: struct device
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*
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* Populate clockdomain based on clock. It is needed for
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* clkdm_deny_idle() and clkdm_allow_idle() for blocking clockdomain
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* clockdomain idle during reset, enable and idle.
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*
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* Note that we assume interconnect driver manages the clocks
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* and do not need to populate oh->_clk for dynamically
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* allocated modules.
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*/
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static int ti_sysc_clkdm_init(struct device *dev,
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struct clk *fck, struct clk *ick,
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struct ti_sysc_cookie *cookie)
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{
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if (!IS_ERR(fck))
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cookie->clkdm = ti_sysc_find_one_clockdomain(fck);
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if (cookie->clkdm)
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return 0;
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if (!IS_ERR(ick))
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cookie->clkdm = ti_sysc_find_one_clockdomain(ick);
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if (cookie->clkdm)
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return 0;
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return -ENODEV;
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}
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static void ti_sysc_clkdm_deny_idle(struct device *dev,
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const struct ti_sysc_cookie *cookie)
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{
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if (cookie->clkdm)
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clkdm_deny_idle(cookie->clkdm);
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}
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static void ti_sysc_clkdm_allow_idle(struct device *dev,
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const struct ti_sysc_cookie *cookie)
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{
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if (cookie->clkdm)
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clkdm_allow_idle(cookie->clkdm);
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}
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#ifdef CONFIG_OMAP_HWMOD
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static int ti_sysc_enable_module(struct device *dev,
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const struct ti_sysc_cookie *cookie)
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{
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if (!cookie->data)
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return -EINVAL;
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return omap_hwmod_enable(cookie->data);
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}
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static int ti_sysc_idle_module(struct device *dev,
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const struct ti_sysc_cookie *cookie)
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{
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if (!cookie->data)
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return -EINVAL;
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return omap_hwmod_idle(cookie->data);
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}
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static int ti_sysc_shutdown_module(struct device *dev,
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const struct ti_sysc_cookie *cookie)
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{
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if (!cookie->data)
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return -EINVAL;
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return omap_hwmod_shutdown(cookie->data);
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}
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#endif /* CONFIG_OMAP_HWMOD */
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static bool ti_sysc_soc_type_gp(void)
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{
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return omap_type() == OMAP2_DEVICE_TYPE_GP;
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}
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static struct of_dev_auxdata omap_auxdata_lookup[];
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static struct ti_sysc_platform_data ti_sysc_pdata = {
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.auxdata = omap_auxdata_lookup,
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.soc_type_gp = ti_sysc_soc_type_gp,
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.init_clockdomain = ti_sysc_clkdm_init,
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.clkdm_deny_idle = ti_sysc_clkdm_deny_idle,
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.clkdm_allow_idle = ti_sysc_clkdm_allow_idle,
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#ifdef CONFIG_OMAP_HWMOD
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.init_module = omap_hwmod_init_module,
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.enable_module = ti_sysc_enable_module,
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.idle_module = ti_sysc_idle_module,
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.shutdown_module = ti_sysc_shutdown_module,
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#endif
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};
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static struct pcs_pdata pcs_pdata;
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void omap_pcs_legacy_init(int irq, void (*rearm)(void))
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{
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pcs_pdata.irq = irq;
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pcs_pdata.rearm = rearm;
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}
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static struct ti_prm_platform_data ti_prm_pdata = {
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.clkdm_deny_idle = clkdm_deny_idle,
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.clkdm_allow_idle = clkdm_allow_idle,
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.clkdm_lookup = clkdm_lookup,
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};
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#if defined(CONFIG_ARCH_OMAP3) && IS_ENABLED(CONFIG_SND_SOC_OMAP_MCBSP)
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static struct omap_mcbsp_platform_data mcbsp_pdata;
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static void __init omap3_mcbsp_init(void)
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{
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omap3_mcbsp_init_pdata_callback(&mcbsp_pdata);
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}
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#else
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static void __init omap3_mcbsp_init(void) {}
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#endif
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/*
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* Few boards still need auxdata populated before we populate
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* the dev entries in of_platform_populate().
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*/
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static struct pdata_init auxdata_quirks[] __initdata = {
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#ifdef CONFIG_SOC_OMAP2420
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{ "nokia,n800", omap2420_n8x0_legacy_init, },
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{ "nokia,n810", omap2420_n8x0_legacy_init, },
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{ "nokia,n810-wimax", omap2420_n8x0_legacy_init, },
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#endif
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{ /* sentinel */ },
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};
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struct omap_sr_data __maybe_unused omap_sr_pdata[OMAP_SR_NR];
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static struct of_dev_auxdata omap_auxdata_lookup[] = {
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#ifdef CONFIG_MACH_NOKIA_N8X0
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OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL),
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OF_DEV_AUXDATA("menelaus", 0x72, "1-0072", &n8x0_menelaus_platform_data),
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#endif
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#ifdef CONFIG_ARCH_OMAP3
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OF_DEV_AUXDATA("ti,omap2-iommu", 0x5d000000, "5d000000.mmu",
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&omap3_iommu_pdata),
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OF_DEV_AUXDATA("ti,omap2-iommu", 0x480bd400, "480bd400.mmu",
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&omap3_iommu_isp_pdata),
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OF_DEV_AUXDATA("ti,omap3-smartreflex-core", 0x480cb000,
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"480cb000.smartreflex", &omap_sr_pdata[OMAP_SR_CORE]),
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OF_DEV_AUXDATA("ti,omap3-smartreflex-mpu-iva", 0x480c9000,
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"480c9000.smartreflex", &omap_sr_pdata[OMAP_SR_MPU]),
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OF_DEV_AUXDATA("ti,omap3-hsmmc", 0x4809c000, "4809c000.mmc", &mmc_pdata[0]),
|
|
OF_DEV_AUXDATA("ti,omap3-hsmmc", 0x480b4000, "480b4000.mmc", &mmc_pdata[1]),
|
|
/* Only on am3517 */
|
|
OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL),
|
|
OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0",
|
|
&am35xx_emac_pdata),
|
|
OF_DEV_AUXDATA("nokia,n900-rom-rng", 0, NULL, rx51_secure_rng_call),
|
|
/* McBSP modules with sidetone core */
|
|
#if IS_ENABLED(CONFIG_SND_SOC_OMAP_MCBSP)
|
|
OF_DEV_AUXDATA("ti,omap3-mcbsp", 0x49022000, "49022000.mcbsp", &mcbsp_pdata),
|
|
OF_DEV_AUXDATA("ti,omap3-mcbsp", 0x49024000, "49024000.mcbsp", &mcbsp_pdata),
|
|
#endif
|
|
#endif
|
|
#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
|
|
OF_DEV_AUXDATA("ti,omap4-smartreflex-iva", 0x4a0db000,
|
|
"4a0db000.smartreflex", &omap_sr_pdata[OMAP_SR_IVA]),
|
|
OF_DEV_AUXDATA("ti,omap4-smartreflex-core", 0x4a0dd000,
|
|
"4a0dd000.smartreflex", &omap_sr_pdata[OMAP_SR_CORE]),
|
|
OF_DEV_AUXDATA("ti,omap4-smartreflex-mpu", 0x4a0d9000,
|
|
"4a0d9000.smartreflex", &omap_sr_pdata[OMAP_SR_MPU]),
|
|
#endif
|
|
#ifdef CONFIG_SOC_DRA7XX
|
|
OF_DEV_AUXDATA("ti,dra7-dsp-iommu", 0x40d01000, "40d01000.mmu",
|
|
&dra7_ipu1_dsp_iommu_pdata),
|
|
OF_DEV_AUXDATA("ti,dra7-dsp-iommu", 0x41501000, "41501000.mmu",
|
|
&dra7_ipu1_dsp_iommu_pdata),
|
|
OF_DEV_AUXDATA("ti,dra7-iommu", 0x58882000, "58882000.mmu",
|
|
&dra7_ipu1_dsp_iommu_pdata),
|
|
#endif
|
|
/* Common auxdata */
|
|
OF_DEV_AUXDATA("simple-pm-bus", 0, NULL, omap_auxdata_lookup),
|
|
OF_DEV_AUXDATA("ti,sysc", 0, NULL, &ti_sysc_pdata),
|
|
OF_DEV_AUXDATA("pinctrl-single", 0, NULL, &pcs_pdata),
|
|
OF_DEV_AUXDATA("ti,omap-prm-inst", 0, NULL, &ti_prm_pdata),
|
|
OF_DEV_AUXDATA("ti,omap-sdma", 0, NULL, &dma_plat_info),
|
|
{ /* sentinel */ },
|
|
};
|
|
|
|
/*
|
|
* Few boards still need to initialize some legacy devices with
|
|
* platform data until the drivers support device tree.
|
|
*/
|
|
static struct pdata_init pdata_quirks[] __initdata = {
|
|
#ifdef CONFIG_ARCH_OMAP3
|
|
{ "compulab,omap3-sbc-t3517", omap3_sbc_t3517_legacy_init, },
|
|
{ "compulab,omap3-sbc-t3530", omap3_sbc_t3530_legacy_init, },
|
|
{ "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init, },
|
|
{ "nokia,omap3-n900", nokia_n900_legacy_init, },
|
|
{ "nokia,omap3-n9", hsmmc2_internal_input_clk, },
|
|
{ "nokia,omap3-n950", hsmmc2_internal_input_clk, },
|
|
{ "logicpd,dm3730-torpedo-devkit", omap3_logicpd_torpedo_init, },
|
|
{ "ti,omap3-evm-37xx", omap3_evm_legacy_init, },
|
|
{ "ti,am3517-evm", am3517_evm_legacy_init, },
|
|
{ "technexion,omap3-tao3530", omap3_tao3530_legacy_init, },
|
|
{ "openpandora,omap3-pandora-600mhz", omap3_pandora_legacy_init, },
|
|
{ "openpandora,omap3-pandora-1ghz", omap3_pandora_legacy_init, },
|
|
#endif
|
|
{ /* sentinel */ },
|
|
};
|
|
|
|
static void pdata_quirks_check(struct pdata_init *quirks)
|
|
{
|
|
while (quirks->compatible) {
|
|
if (of_machine_is_compatible(quirks->compatible)) {
|
|
if (quirks->fn)
|
|
quirks->fn();
|
|
}
|
|
quirks++;
|
|
}
|
|
}
|
|
|
|
static const char * const pdata_quirks_init_nodes[] = {
|
|
"prcm",
|
|
"prm",
|
|
};
|
|
|
|
static void __init
|
|
pdata_quirks_init_clocks(const struct of_device_id *omap_dt_match_table)
|
|
{
|
|
struct device_node *np;
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(pdata_quirks_init_nodes); i++) {
|
|
np = of_find_node_by_name(NULL, pdata_quirks_init_nodes[i]);
|
|
if (!np)
|
|
continue;
|
|
|
|
of_platform_populate(np, omap_dt_match_table,
|
|
omap_auxdata_lookup, NULL);
|
|
|
|
of_node_put(np);
|
|
}
|
|
}
|
|
|
|
void __init pdata_quirks_init(const struct of_device_id *omap_dt_match_table)
|
|
{
|
|
/*
|
|
* We still need this for omap2420 and omap3 PM to work, others are
|
|
* using drivers/misc/sram.c already.
|
|
*/
|
|
if (of_machine_is_compatible("ti,omap2420") ||
|
|
of_machine_is_compatible("ti,omap3"))
|
|
omap_sdrc_init(NULL, NULL);
|
|
|
|
if (of_machine_is_compatible("ti,omap3"))
|
|
omap3_mcbsp_init();
|
|
pdata_quirks_check(auxdata_quirks);
|
|
|
|
pdata_quirks_init_clocks(omap_dt_match_table);
|
|
|
|
of_platform_populate(NULL, omap_dt_match_table,
|
|
omap_auxdata_lookup, NULL);
|
|
pdata_quirks_check(pdata_quirks);
|
|
}
|