mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 12:55:04 +07:00
f5887fe5d1
Similar to commit fdf4850cb5 ("ARM: BCM5301X: workaround suppress fault"),
let's add custom handling for the aborts on t410 that prevent booting:
Unhandled fault: imprecise external abort (0xc06) at 0xee091fb0
pgd = ee4bc000
[ee091fb0] *pgd=ae00041e(bad)
Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000007
Cc: Matthijs van Duin <matthijsvanduin@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
568 lines
15 KiB
C
568 lines
15 KiB
C
/*
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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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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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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.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/ti_wilink_st.h>
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#include <linux/wl12xx.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/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/iommu-omap.h>
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#include <linux/platform_data/wkup_m3.h>
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#include <asm/siginfo.h>
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#include <asm/signal.h>
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#include "common.h"
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#include "common-board-devices.h"
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#include "dss-common.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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#include "hsmmc.h"
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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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struct of_dev_auxdata omap_auxdata_lookup[];
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static struct twl4030_gpio_platform_data twl_gpio_auxdata;
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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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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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};
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static int omap3_sbc_t3730_twl_callback(struct device *dev,
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unsigned gpio,
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unsigned ngpio)
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{
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int res;
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res = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH,
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"wlan pwr");
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if (res)
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return res;
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gpio_export(gpio, 0);
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return 0;
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}
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static void __init omap3_sbc_t3x_usb_hub_init(int gpio, char *hub_name)
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{
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int err = gpio_request_one(gpio, GPIOF_OUT_INIT_LOW, hub_name);
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if (err) {
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pr_err("SBC-T3x: %s reset gpio request failed: %d\n",
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hub_name, err);
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return;
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}
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gpio_export(gpio, 0);
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udelay(10);
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gpio_set_value(gpio, 1);
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msleep(1);
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}
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static void __init omap3_sbc_t3730_twl_init(void)
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{
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twl_gpio_auxdata.setup = omap3_sbc_t3730_twl_callback;
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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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omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
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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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omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
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}
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struct ti_st_plat_data wilink_pdata = {
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.nshutdown_gpio = 137,
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.dev_name = "/dev/ttyO1",
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.flow_cntrl = 1,
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.baud_rate = 300000,
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};
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static struct platform_device wl18xx_device = {
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.name = "kim",
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.id = -1,
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.dev = {
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.platform_data = &wilink_pdata,
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}
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};
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static struct platform_device btwilink_device = {
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.name = "btwilink",
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.id = -1,
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};
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static void __init omap3_igep0020_rev_f_legacy_init(void)
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{
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platform_device_register(&wl18xx_device);
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platform_device_register(&btwilink_device);
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}
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static void __init omap3_igep0030_rev_g_legacy_init(void)
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{
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platform_device_register(&wl18xx_device);
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platform_device_register(&btwilink_device);
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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 gpio cm_t3517_wlan_gpios[] __initdata = {
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{ 56, GPIOF_OUT_INIT_HIGH, "wlan pwr" },
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{ 4, GPIOF_OUT_INIT_HIGH, "xcvr noe" },
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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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int err = gpio_request_array(cm_t3517_wlan_gpios,
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ARRAY_SIZE(cm_t3517_wlan_gpios));
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if (err) {
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pr_err("SBC-T3517: wl12xx gpios request failed: %d\n", err);
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return;
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}
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gpio_export(cm_t3517_wlan_gpios[0].gpio, 0);
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gpio_export(cm_t3517_wlan_gpios[1].gpio, 0);
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msleep(100);
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gpio_set_value(cm_t3517_wlan_gpios[1].gpio, 0);
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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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omap3_sbc_t3x_usb_hub_init(152, "cm-t3517 usb hub");
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omap3_sbc_t3x_usb_hub_init(98, "sb-t35 usb hub");
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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 struct platform_device omap3_rom_rng_device = {
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.name = "omap3-rom-rng",
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.id = -1,
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.dev = {
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.platform_data = rx51_secure_rng_call,
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},
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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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if (omap_type() == OMAP2_DEVICE_TYPE_SEC) {
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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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pr_info("RX-51: Registring OMAP3 HWRNG device\n");
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platform_device_register(&omap3_rom_rng_device);
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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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/* omap3pandora legacy devices */
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#define PANDORA_WIFI_IRQ_GPIO 21
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#define PANDORA_WIFI_NRESET_GPIO 23
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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 struct regulator_consumer_supply pandora_vmmc3_supply[] = {
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REGULATOR_SUPPLY("vmmc", "omap_hsmmc.2"),
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};
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static struct regulator_init_data pandora_vmmc3 = {
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.constraints = {
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.valid_ops_mask = REGULATOR_CHANGE_STATUS,
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},
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.num_consumer_supplies = ARRAY_SIZE(pandora_vmmc3_supply),
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.consumer_supplies = pandora_vmmc3_supply,
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};
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static struct fixed_voltage_config pandora_vwlan = {
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.supply_name = "vwlan",
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.microvolts = 1800000, /* 1.8V */
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.gpio = PANDORA_WIFI_NRESET_GPIO,
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.startup_delay = 50000, /* 50ms */
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.enable_high = 1,
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.init_data = &pandora_vmmc3,
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};
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static struct platform_device pandora_vwlan_device = {
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.name = "reg-fixed-voltage",
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.id = 1,
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.dev = {
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.platform_data = &pandora_vwlan,
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},
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};
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static void pandora_wl1251_init_card(struct mmc_card *card)
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{
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/*
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* We have TI wl1251 attached to MMC3. Pass this information to
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* SDIO core because it can't be probed by normal methods.
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*/
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if (card->type == MMC_TYPE_SDIO || card->type == MMC_TYPE_SD_COMBO) {
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card->quirks |= MMC_QUIRK_NONSTD_SDIO;
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card->cccr.wide_bus = 1;
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card->cis.vendor = 0x104c;
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card->cis.device = 0x9066;
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card->cis.blksize = 512;
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card->cis.max_dtr = 24000000;
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card->ocr = 0x80;
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}
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}
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static struct omap2_hsmmc_info pandora_mmc3[] = {
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{
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.mmc = 3,
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.caps = MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD,
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.gpio_cd = -EINVAL,
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.gpio_wp = -EINVAL,
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.init_card = pandora_wl1251_init_card,
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},
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{} /* Terminator */
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};
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static void __init pandora_wl1251_init(void)
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{
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struct wl1251_platform_data pandora_wl1251_pdata;
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int ret;
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memset(&pandora_wl1251_pdata, 0, sizeof(pandora_wl1251_pdata));
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pandora_wl1251_pdata.power_gpio = -1;
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ret = gpio_request_one(PANDORA_WIFI_IRQ_GPIO, GPIOF_IN, "wl1251 irq");
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if (ret < 0)
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goto fail;
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pandora_wl1251_pdata.irq = gpio_to_irq(PANDORA_WIFI_IRQ_GPIO);
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if (pandora_wl1251_pdata.irq < 0)
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goto fail_irq;
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pandora_wl1251_pdata.use_eeprom = true;
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ret = wl1251_set_platform_data(&pandora_wl1251_pdata);
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if (ret < 0)
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goto fail_irq;
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return;
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fail_irq:
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gpio_free(PANDORA_WIFI_IRQ_GPIO);
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fail:
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pr_err("wl1251 board initialisation failed\n");
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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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platform_device_register(&pandora_vwlan_device);
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omap_hsmmc_init(pandora_mmc3);
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omap_hsmmc_late_init(pandora_mmc3);
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pandora_wl1251_init();
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}
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#endif /* CONFIG_ARCH_OMAP3 */
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#ifdef CONFIG_SOC_TI81XX
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static int fault_fixed_up;
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static int t410_abort_handler(unsigned long addr, unsigned int fsr,
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struct pt_regs *regs)
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{
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if ((fsr == 0x406 || fsr == 0xc06) && !fault_fixed_up) {
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pr_warn("External imprecise Data abort at addr=%#lx, fsr=%#x ignored.\n",
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addr, fsr);
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fault_fixed_up = 1;
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return 0;
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}
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return 1;
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}
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static void __init t410_abort_init(void)
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{
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hook_fault_code(16 + 6, t410_abort_handler, SIGBUS, BUS_OBJERR,
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"imprecise external abort");
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}
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#endif
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#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
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static struct iommu_platform_data omap4_iommu_pdata = {
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.reset_name = "mmu_cache",
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.assert_reset = omap_device_assert_hardreset,
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.deassert_reset = omap_device_deassert_hardreset,
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};
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#endif
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#if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
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static struct wkup_m3_platform_data wkup_m3_data = {
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.reset_name = "wkup_m3",
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.assert_reset = omap_device_assert_hardreset,
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.deassert_reset = omap_device_deassert_hardreset,
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};
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#endif
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#ifdef CONFIG_SOC_OMAP5
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static void __init omap5_uevm_legacy_init(void)
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{
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}
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#endif
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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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/*
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* GPIOs for TWL are initialized by the I2C bus and need custom
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* handing until DSS has device tree bindings.
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*/
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void omap_auxdata_legacy_init(struct device *dev)
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{
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if (dev->platform_data)
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return;
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if (strcmp("twl4030-gpio", dev_name(dev)))
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return;
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dev->platform_data = &twl_gpio_auxdata;
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}
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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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#ifdef CONFIG_ARCH_OMAP3
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{ "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init, },
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#endif
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{ /* sentinel */ },
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};
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struct of_dev_auxdata omap_auxdata_lookup[] __initdata = {
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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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OF_DEV_AUXDATA("tlv320aic3x", 0x18, "2-0018", &n810_aic33_data),
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#endif
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#ifdef CONFIG_ARCH_OMAP3
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OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002030, "48002030.pinmux", &pcs_pdata),
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OF_DEV_AUXDATA("ti,omap3-padconf", 0x480025a0, "480025a0.pinmux", &pcs_pdata),
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OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002a00, "48002a00.pinmux", &pcs_pdata),
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OF_DEV_AUXDATA("ti,omap2-iommu", 0x5d000000, "5d000000.mmu",
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&omap3_iommu_pdata),
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/* Only on am3517 */
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|
OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL),
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OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0",
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&am35xx_emac_pdata),
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|
#endif
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|
#ifdef CONFIG_SOC_AM33XX
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|
OF_DEV_AUXDATA("ti,am3352-wkup-m3", 0x44d00000, "44d00000.wkup_m3",
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|
&wkup_m3_data),
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|
#endif
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|
#ifdef CONFIG_ARCH_OMAP4
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|
OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a100040, "4a100040.pinmux", &pcs_pdata),
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OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a31e040, "4a31e040.pinmux", &pcs_pdata),
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|
#endif
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|
#ifdef CONFIG_SOC_OMAP5
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|
OF_DEV_AUXDATA("ti,omap5-padconf", 0x4a002840, "4a002840.pinmux", &pcs_pdata),
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|
OF_DEV_AUXDATA("ti,omap5-padconf", 0x4ae0c840, "4ae0c840.pinmux", &pcs_pdata),
|
|
#endif
|
|
#ifdef CONFIG_SOC_DRA7XX
|
|
OF_DEV_AUXDATA("ti,dra7-padconf", 0x4a003400, "4a003400.pinmux", &pcs_pdata),
|
|
#endif
|
|
#ifdef CONFIG_SOC_AM43XX
|
|
OF_DEV_AUXDATA("ti,am437-padconf", 0x44e10800, "44e10800.pinmux", &pcs_pdata),
|
|
OF_DEV_AUXDATA("ti,am4372-wkup-m3", 0x44d00000, "44d00000.wkup_m3",
|
|
&wkup_m3_data),
|
|
#endif
|
|
#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
|
|
OF_DEV_AUXDATA("ti,omap4-iommu", 0x4a066000, "4a066000.mmu",
|
|
&omap4_iommu_pdata),
|
|
OF_DEV_AUXDATA("ti,omap4-iommu", 0x55082000, "55082000.mmu",
|
|
&omap4_iommu_pdata),
|
|
#endif
|
|
{ /* 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, },
|
|
{ "isee,omap3-igep0020-rev-f", omap3_igep0020_rev_f_legacy_init, },
|
|
{ "isee,omap3-igep0030-rev-g", omap3_igep0030_rev_g_legacy_init, },
|
|
{ "logicpd,dm3730-torpedo-devkit", omap3_gpio126_127_129, },
|
|
{ "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
|
|
#ifdef CONFIG_SOC_TI81XX
|
|
{ "hp,t410", t410_abort_init, },
|
|
#endif
|
|
#ifdef CONFIG_SOC_OMAP5
|
|
{ "ti,omap5-uevm", omap5_uevm_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();
|
|
break;
|
|
}
|
|
quirks++;
|
|
}
|
|
}
|
|
|
|
void __init pdata_quirks_init(const struct of_device_id *omap_dt_match_table)
|
|
{
|
|
omap_sdrc_init(NULL, NULL);
|
|
pdata_quirks_check(auxdata_quirks);
|
|
of_platform_populate(NULL, omap_dt_match_table,
|
|
omap_auxdata_lookup, NULL);
|
|
pdata_quirks_check(pdata_quirks);
|
|
}
|