diff options
Diffstat (limited to 'arch/arm/mach-omap2/pdata-quirks.c')
| -rw-r--r-- | arch/arm/mach-omap2/pdata-quirks.c | 567 |
1 files changed, 567 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c new file mode 100644 index 000000000..5b99d602c --- /dev/null +++ b/arch/arm/mach-omap2/pdata-quirks.c @@ -0,0 +1,567 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Legacy platform_data quirks + * + * Copyright (C) 2013 Texas Instruments + */ +#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/wl12xx.h> +#include <linux/mmc/card.h> +#include <linux/mmc/host.h> +#include <linux/power/smartreflex.h> +#include <linux/regulator/machine.h> +#include <linux/regulator/fixed.h> + +#include <linux/platform_data/pinctrl-single.h> +#include <linux/platform_data/hsmmc-omap.h> +#include <linux/platform_data/iommu-omap.h> +#include <linux/platform_data/ti-sysc.h> +#include <linux/platform_data/wkup_m3.h> +#include <linux/platform_data/asoc-ti-mcbsp.h> +#include <linux/platform_data/ti-prm.h> + +#include "clockdomain.h" +#include "common.h" +#include "common-board-devices.h" +#include "control.h" +#include "omap_device.h" +#include "omap-secure.h" +#include "soc.h" + +static struct omap_hsmmc_platform_data __maybe_unused mmc_pdata[2]; + +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); +} + +#ifdef CONFIG_OMAP_HWMOD +static struct iommu_platform_data omap3_iommu_pdata = { + .reset_name = "mmu", + .assert_reset = omap_device_assert_hardreset, + .deassert_reset = omap_device_deassert_hardreset, + .device_enable = omap_device_enable, + .device_idle = omap_device_idle, +}; + +static struct iommu_platform_data omap3_iommu_isp_pdata = { + .device_enable = omap_device_enable, + .device_idle = omap_device_idle, +}; +#endif + +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 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 void __init nokia_n900_legacy_init(void) +{ + hsmmc2_internal_input_clk(); + mmc_pdata[0].name = "external"; + mmc_pdata[1].name = "internal"; + + if (omap_type() != OMAP2_DEVICE_TYPE_GP) { + 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"); + } + } +} + +static void __init omap3_tao3530_legacy_init(void) +{ + hsmmc2_internal_input_clk(); +} + +static void __init omap3_logicpd_torpedo_init(void) +{ + omap3_gpio126_127_129(); +} + +/* omap3pandora legacy devices */ + +static struct platform_device pandora_backlight = { + .name = "pandora-backlight", + .id = -1, +}; + +static void __init omap3_pandora_legacy_init(void) +{ + platform_device_register(&pandora_backlight); +} +#endif /* CONFIG_ARCH_OMAP3 */ + +#ifdef CONFIG_SOC_DRA7XX +static struct iommu_platform_data dra7_ipu1_dsp_iommu_pdata = { + .set_pwrdm_constraint = omap_iommu_set_pwrdm_constraint, +}; +#endif + +static struct clockdomain *ti_sysc_find_one_clockdomain(struct clk *clk) +{ + struct clk_hw *hw = __clk_get_hw(clk); + struct clockdomain *clkdm = NULL; + struct clk_hw_omap *hwclk; + + hwclk = to_clk_hw_omap(hw); + if (!omap2_clk_is_hw_omap(hw)) + return NULL; + + if (hwclk && hwclk->clkdm_name) + clkdm = clkdm_lookup(hwclk->clkdm_name); + + return clkdm; +} + +/** + * ti_sysc_clkdm_init - find clockdomain based on clock + * @fck: device functional clock + * @ick: device interface clock + * @dev: struct device + * + * Populate clockdomain based on clock. It is needed for + * clkdm_deny_idle() and clkdm_allow_idle() for blocking clockdomain + * clockdomain idle during reset, enable and idle. + * + * Note that we assume interconnect driver manages the clocks + * and do not need to populate oh->_clk for dynamically + * allocated modules. + */ +static int ti_sysc_clkdm_init(struct device *dev, + struct clk *fck, struct clk *ick, + struct ti_sysc_cookie *cookie) +{ + if (!IS_ERR(fck)) + cookie->clkdm = ti_sysc_find_one_clockdomain(fck); + if (cookie->clkdm) + return 0; + if (!IS_ERR(ick)) + cookie->clkdm = ti_sysc_find_one_clockdomain(ick); + if (cookie->clkdm) + return 0; + + return -ENODEV; +} + +static void ti_sysc_clkdm_deny_idle(struct device *dev, + const struct ti_sysc_cookie *cookie) +{ + if (cookie->clkdm) + clkdm_deny_idle(cookie->clkdm); +} + +static void ti_sysc_clkdm_allow_idle(struct device *dev, + const struct ti_sysc_cookie *cookie) +{ + if (cookie->clkdm) + clkdm_allow_idle(cookie->clkdm); +} + +#ifdef CONFIG_OMAP_HWMOD +static int ti_sysc_enable_module(struct device *dev, + const struct ti_sysc_cookie *cookie) +{ + if (!cookie->data) + return -EINVAL; + + return omap_hwmod_enable(cookie->data); +} + +static int ti_sysc_idle_module(struct device *dev, + const struct ti_sysc_cookie *cookie) +{ + if (!cookie->data) + return -EINVAL; + + return omap_hwmod_idle(cookie->data); +} + +static int ti_sysc_shutdown_module(struct device *dev, + const struct ti_sysc_cookie *cookie) +{ + if (!cookie->data) + return -EINVAL; + + return omap_hwmod_shutdown(cookie->data); +} +#endif /* CONFIG_OMAP_HWMOD */ + +static bool ti_sysc_soc_type_gp(void) +{ + return omap_type() == OMAP2_DEVICE_TYPE_GP; +} + +static struct of_dev_auxdata omap_auxdata_lookup[]; + +static struct ti_sysc_platform_data ti_sysc_pdata = { + .auxdata = omap_auxdata_lookup, + .soc_type_gp = ti_sysc_soc_type_gp, + .init_clockdomain = ti_sysc_clkdm_init, + .clkdm_deny_idle = ti_sysc_clkdm_deny_idle, + .clkdm_allow_idle = ti_sysc_clkdm_allow_idle, +#ifdef CONFIG_OMAP_HWMOD + .init_module = omap_hwmod_init_module, + .enable_module = ti_sysc_enable_module, + .idle_module = ti_sysc_idle_module, + .shutdown_module = ti_sysc_shutdown_module, +#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; +} + +static struct ti_prm_platform_data ti_prm_pdata = { + .clkdm_deny_idle = clkdm_deny_idle, + .clkdm_allow_idle = clkdm_allow_idle, + .clkdm_lookup = clkdm_lookup, +}; + +/* + * 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; +} + +#if defined(CONFIG_ARCH_OMAP3) && IS_ENABLED(CONFIG_SND_SOC_OMAP_MCBSP) +static struct omap_mcbsp_platform_data mcbsp_pdata; +static void __init omap3_mcbsp_init(void) +{ + omap3_mcbsp_init_pdata_callback(&mcbsp_pdata); +} +#else +static void __init omap3_mcbsp_init(void) {} +#endif + +/* + * 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 */ }, +}; + +struct omap_sr_data __maybe_unused omap_sr_pdata[OMAP_SR_NR]; + +static struct of_dev_auxdata omap_auxdata_lookup[] = { +#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,omap2-iommu", 0x5d000000, "5d000000.mmu", + &omap3_iommu_pdata), + OF_DEV_AUXDATA("ti,omap2-iommu", 0x480bd400, "480bd400.mmu", + &omap3_iommu_isp_pdata), + OF_DEV_AUXDATA("ti,omap3-smartreflex-core", 0x480cb000, + "480cb000.smartreflex", &omap_sr_pdata[OMAP_SR_CORE]), + OF_DEV_AUXDATA("ti,omap3-smartreflex-mpu-iva", 0x480c9000, + "480c9000.smartreflex", &omap_sr_pdata[OMAP_SR_MPU]), + 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); +} |