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|
/*
* Legacy platform_data quirks
*
* Copyright (C) 2013 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/clk.h>
#include <linux/davinci_emac.h>
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/of_platform.h>
#include <linux/ti_wilink_st.h>
#include <linux/wl12xx.h>
#include <linux/mmc/card.h>
#include <linux/mmc/host.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/fixed.h>
#include <linux/platform_data/pinctrl-single.h>
#include <linux/platform_data/iommu-omap.h>
#include <linux/platform_data/wkup_m3.h>
#include "common.h"
#include "common-board-devices.h"
#include "dss-common.h"
#include "control.h"
#include "omap_device.h"
#include "omap-secure.h"
#include "soc.h"
#include "hsmmc.h"
struct pdata_init {
const char *compatible;
void (*fn)(void);
};
static struct of_dev_auxdata omap_auxdata_lookup[];
static struct twl4030_gpio_platform_data twl_gpio_auxdata;
#ifdef CONFIG_MACH_NOKIA_N8X0
static void __init omap2420_n8x0_legacy_init(void)
{
omap_auxdata_lookup[0].platform_data = n8x0_legacy_init();
}
#else
#define omap2420_n8x0_legacy_init NULL
#endif
#ifdef CONFIG_ARCH_OMAP3
/*
* Configures GPIOs 126, 127 and 129 to 1.8V mode instead of 3.0V
* mode for MMC1 in case bootloader did not configure things.
* Note that if the pins are used for MMC1, pbias-regulator
* manages the IO voltage.
*/
static void __init omap3_gpio126_127_129(void)
{
u32 reg;
reg = omap_ctrl_readl(OMAP343X_CONTROL_PBIAS_LITE);
reg &= ~OMAP343X_PBIASLITEVMODE1;
reg |= OMAP343X_PBIASLITEPWRDNZ1;
omap_ctrl_writel(reg, OMAP343X_CONTROL_PBIAS_LITE);
if (cpu_is_omap3630()) {
reg = omap_ctrl_readl(OMAP34XX_CONTROL_WKUP_CTRL);
reg |= OMAP36XX_GPIO_IO_PWRDNZ;
omap_ctrl_writel(reg, OMAP34XX_CONTROL_WKUP_CTRL);
}
}
static void __init hsmmc2_internal_input_clk(void)
{
u32 reg;
reg = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1);
reg |= OMAP2_MMCSDIO2ADPCLKISEL;
omap_ctrl_writel(reg, OMAP343X_CONTROL_DEVCONF1);
}
static struct iommu_platform_data omap3_iommu_pdata = {
.reset_name = "mmu",
.assert_reset = omap_device_assert_hardreset,
.deassert_reset = omap_device_deassert_hardreset,
};
static int omap3_sbc_t3730_twl_callback(struct device *dev,
unsigned gpio,
unsigned ngpio)
{
int res;
res = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH,
"wlan pwr");
if (res)
return res;
gpio_export(gpio, 0);
return 0;
}
static void __init omap3_sbc_t3x_usb_hub_init(int gpio, char *hub_name)
{
int err = gpio_request_one(gpio, GPIOF_OUT_INIT_LOW, hub_name);
if (err) {
pr_err("SBC-T3x: %s reset gpio request failed: %d\n",
hub_name, err);
return;
}
gpio_export(gpio, 0);
udelay(10);
gpio_set_value(gpio, 1);
msleep(1);
}
static void __init omap3_sbc_t3730_twl_init(void)
{
twl_gpio_auxdata.setup = omap3_sbc_t3730_twl_callback;
}
static void __init omap3_sbc_t3730_legacy_init(void)
{
omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
}
static void __init omap3_sbc_t3530_legacy_init(void)
{
omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
}
static struct ti_st_plat_data wilink_pdata = {
.nshutdown_gpio = 137,
.dev_name = "/dev/ttyO1",
.flow_cntrl = 1,
.baud_rate = 300000,
};
static struct platform_device wl18xx_device = {
.name = "kim",
.id = -1,
.dev = {
.platform_data = &wilink_pdata,
}
};
static struct platform_device btwilink_device = {
.name = "btwilink",
.id = -1,
};
static void __init omap3_igep0020_rev_f_legacy_init(void)
{
platform_device_register(&wl18xx_device);
platform_device_register(&btwilink_device);
}
static void __init omap3_igep0030_rev_g_legacy_init(void)
{
platform_device_register(&wl18xx_device);
platform_device_register(&btwilink_device);
}
static void __init omap3_evm_legacy_init(void)
{
hsmmc2_internal_input_clk();
}
static void am35xx_enable_emac_int(void)
{
u32 v;
v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR |
AM35XX_CPGMAC_C0_MISC_PULSE_CLR | AM35XX_CPGMAC_C0_RX_THRESH_CLR);
omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
}
static void am35xx_disable_emac_int(void)
{
u32 v;
v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR);
omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
}
static struct emac_platform_data am35xx_emac_pdata = {
.interrupt_enable = am35xx_enable_emac_int,
.interrupt_disable = am35xx_disable_emac_int,
};
static void __init am35xx_emac_reset(void)
{
u32 v;
v = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
v &= ~AM35XX_CPGMACSS_SW_RST;
omap_ctrl_writel(v, AM35XX_CONTROL_IP_SW_RESET);
omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); /* OCP barrier */
}
static struct gpio cm_t3517_wlan_gpios[] __initdata = {
{ 56, GPIOF_OUT_INIT_HIGH, "wlan pwr" },
{ 4, GPIOF_OUT_INIT_HIGH, "xcvr noe" },
};
static void __init omap3_sbc_t3517_wifi_init(void)
{
int err = gpio_request_array(cm_t3517_wlan_gpios,
ARRAY_SIZE(cm_t3517_wlan_gpios));
if (err) {
pr_err("SBC-T3517: wl12xx gpios request failed: %d\n", err);
return;
}
gpio_export(cm_t3517_wlan_gpios[0].gpio, 0);
gpio_export(cm_t3517_wlan_gpios[1].gpio, 0);
msleep(100);
gpio_set_value(cm_t3517_wlan_gpios[1].gpio, 0);
}
static void __init omap3_sbc_t3517_legacy_init(void)
{
omap3_sbc_t3x_usb_hub_init(152, "cm-t3517 usb hub");
omap3_sbc_t3x_usb_hub_init(98, "sb-t35 usb hub");
am35xx_emac_reset();
hsmmc2_internal_input_clk();
omap3_sbc_t3517_wifi_init();
}
static void __init am3517_evm_legacy_init(void)
{
am35xx_emac_reset();
}
static struct platform_device omap3_rom_rng_device = {
.name = "omap3-rom-rng",
.id = -1,
.dev = {
.platform_data = rx51_secure_rng_call,
},
};
static void __init nokia_n900_legacy_init(void)
{
hsmmc2_internal_input_clk();
if (omap_type() == OMAP2_DEVICE_TYPE_SEC) {
if (IS_ENABLED(CONFIG_ARM_ERRATA_430973)) {
pr_info("RX-51: Enabling ARM errata 430973 workaround\n");
/* set IBE to 1 */
rx51_secure_update_aux_cr(BIT(6), 0);
} else {
pr_warn("RX-51: Not enabling ARM errata 430973 workaround\n");
pr_warn("Thumb binaries may crash randomly without this workaround\n");
}
pr_info("RX-51: Registring OMAP3 HWRNG device\n");
platform_device_register(&omap3_rom_rng_device);
}
}
static void __init omap3_tao3530_legacy_init(void)
{
hsmmc2_internal_input_clk();
}
/* omap3pandora legacy devices */
#define PANDORA_WIFI_IRQ_GPIO 21
#define PANDORA_WIFI_NRESET_GPIO 23
static struct platform_device pandora_backlight = {
.name = "pandora-backlight",
.id = -1,
};
static struct regulator_consumer_supply pandora_vmmc3_supply[] = {
REGULATOR_SUPPLY("vmmc", "omap_hsmmc.2"),
};
static struct regulator_init_data pandora_vmmc3 = {
.constraints = {
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = ARRAY_SIZE(pandora_vmmc3_supply),
.consumer_supplies = pandora_vmmc3_supply,
};
static struct fixed_voltage_config pandora_vwlan = {
.supply_name = "vwlan",
.microvolts = 1800000, /* 1.8V */
.gpio = PANDORA_WIFI_NRESET_GPIO,
.startup_delay = 50000, /* 50ms */
.enable_high = 1,
.init_data = &pandora_vmmc3,
};
static struct platform_device pandora_vwlan_device = {
.name = "reg-fixed-voltage",
.id = 1,
.dev = {
.platform_data = &pandora_vwlan,
},
};
static void pandora_wl1251_init_card(struct mmc_card *card)
{
/*
* We have TI wl1251 attached to MMC3. Pass this information to
* SDIO core because it can't be probed by normal methods.
*/
if (card->type == MMC_TYPE_SDIO || card->type == MMC_TYPE_SD_COMBO) {
card->quirks |= MMC_QUIRK_NONSTD_SDIO;
card->cccr.wide_bus = 1;
card->cis.vendor = 0x104c;
card->cis.device = 0x9066;
card->cis.blksize = 512;
card->cis.max_dtr = 24000000;
card->ocr = 0x80;
}
}
static struct omap2_hsmmc_info pandora_mmc3[] = {
{
.mmc = 3,
.caps = MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD,
.gpio_cd = -EINVAL,
.gpio_wp = -EINVAL,
.init_card = pandora_wl1251_init_card,
},
{} /* Terminator */
};
static void __init pandora_wl1251_init(void)
{
struct wl1251_platform_data pandora_wl1251_pdata;
int ret;
memset(&pandora_wl1251_pdata, 0, sizeof(pandora_wl1251_pdata));
pandora_wl1251_pdata.power_gpio = -1;
ret = gpio_request_one(PANDORA_WIFI_IRQ_GPIO, GPIOF_IN, "wl1251 irq");
if (ret < 0)
goto fail;
pandora_wl1251_pdata.irq = gpio_to_irq(PANDORA_WIFI_IRQ_GPIO);
if (pandora_wl1251_pdata.irq < 0)
goto fail_irq;
pandora_wl1251_pdata.use_eeprom = true;
ret = wl1251_set_platform_data(&pandora_wl1251_pdata);
if (ret < 0)
goto fail_irq;
return;
fail_irq:
gpio_free(PANDORA_WIFI_IRQ_GPIO);
fail:
pr_err("wl1251 board initialisation failed\n");
}
static void __init omap3_pandora_legacy_init(void)
{
platform_device_register(&pandora_backlight);
platform_device_register(&pandora_vwlan_device);
omap_hsmmc_init(pandora_mmc3);
omap_hsmmc_late_init(pandora_mmc3);
pandora_wl1251_init();
}
#endif /* CONFIG_ARCH_OMAP3 */
#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
static struct iommu_platform_data omap4_iommu_pdata = {
.reset_name = "mmu_cache",
.assert_reset = omap_device_assert_hardreset,
.deassert_reset = omap_device_deassert_hardreset,
};
#endif
#if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
static struct wkup_m3_platform_data wkup_m3_data = {
.reset_name = "wkup_m3",
.assert_reset = omap_device_assert_hardreset,
.deassert_reset = omap_device_deassert_hardreset,
};
#endif
#ifdef CONFIG_SOC_OMAP5
static void __init omap5_uevm_legacy_init(void)
{
}
#endif
static struct pcs_pdata pcs_pdata;
void omap_pcs_legacy_init(int irq, void (*rearm)(void))
{
pcs_pdata.irq = irq;
pcs_pdata.rearm = rearm;
}
/*
* GPIOs for TWL are initialized by the I2C bus and need custom
* handing until DSS has device tree bindings.
*/
void omap_auxdata_legacy_init(struct device *dev)
{
if (dev->platform_data)
return;
if (strcmp("twl4030-gpio", dev_name(dev)))
return;
dev->platform_data = &twl_gpio_auxdata;
}
/*
* Few boards still need auxdata populated before we populate
* the dev entries in of_platform_populate().
*/
static struct pdata_init auxdata_quirks[] __initdata = {
#ifdef CONFIG_SOC_OMAP2420
{ "nokia,n800", omap2420_n8x0_legacy_init, },
{ "nokia,n810", omap2420_n8x0_legacy_init, },
{ "nokia,n810-wimax", omap2420_n8x0_legacy_init, },
#endif
#ifdef CONFIG_ARCH_OMAP3
{ "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init, },
#endif
{ /* sentinel */ },
};
static struct of_dev_auxdata omap_auxdata_lookup[] __initdata = {
#ifdef CONFIG_MACH_NOKIA_N8X0
OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL),
OF_DEV_AUXDATA("menelaus", 0x72, "1-0072", &n8x0_menelaus_platform_data),
OF_DEV_AUXDATA("tlv320aic3x", 0x18, "2-0018", &n810_aic33_data),
#endif
#ifdef CONFIG_ARCH_OMAP3
OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002030, "48002030.pinmux", &pcs_pdata),
OF_DEV_AUXDATA("ti,omap3-padconf", 0x480025a0, "480025a0.pinmux", &pcs_pdata),
OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002a00, "48002a00.pinmux", &pcs_pdata),
OF_DEV_AUXDATA("ti,omap2-iommu", 0x5d000000, "5d000000.mmu",
&omap3_iommu_pdata),
/* 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),
#endif
#ifdef CONFIG_SOC_AM33XX
OF_DEV_AUXDATA("ti,am3352-wkup-m3", 0x44d00000, "44d00000.wkup_m3",
&wkup_m3_data),
#endif
#ifdef CONFIG_ARCH_OMAP4
OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a100040, "4a100040.pinmux", &pcs_pdata),
OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a31e040, "4a31e040.pinmux", &pcs_pdata),
#endif
#ifdef CONFIG_SOC_OMAP5
OF_DEV_AUXDATA("ti,omap5-padconf", 0x4a002840, "4a002840.pinmux", &pcs_pdata),
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_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();
}
quirks++;
}
}
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);
pdata_quirks_check(auxdata_quirks);
of_platform_populate(NULL, omap_dt_match_table,
omap_auxdata_lookup, NULL);
pdata_quirks_check(pdata_quirks);
}
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