| /* |
| * 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/wl12xx.h> |
| |
| #include <linux/platform_data/pinctrl-single.h> |
| #include <linux/platform_data/iommu-omap.h> |
| |
| #include "am35xx.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" |
| |
| struct pdata_init { |
| const char *compatible; |
| void (*fn)(void); |
| }; |
| |
| struct of_dev_auxdata omap_auxdata_lookup[]; |
| static struct twl4030_gpio_platform_data twl_gpio_auxdata; |
| |
| #if IS_ENABLED(CONFIG_WL12XX) |
| |
| static struct wl12xx_platform_data wl12xx __initdata; |
| |
| static void __init __used legacy_init_wl12xx(unsigned ref_clock, |
| unsigned tcxo_clock, |
| int gpio) |
| { |
| int res; |
| |
| wl12xx.board_ref_clock = ref_clock; |
| wl12xx.board_tcxo_clock = tcxo_clock; |
| wl12xx.irq = gpio_to_irq(gpio); |
| |
| res = wl12xx_set_platform_data(&wl12xx); |
| if (res) { |
| pr_err("error setting wl12xx data: %d\n", res); |
| return; |
| } |
| } |
| #else |
| static inline void legacy_init_wl12xx(unsigned ref_clock, |
| unsigned tcxo_clock, |
| int gpio) |
| { |
| } |
| #endif |
| |
| #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 |
| 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"); |
| legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 136); |
| omap_ads7846_init(1, 57, 0, NULL); |
| } |
| |
| static void __init omap3_sbc_t3530_legacy_init(void) |
| { |
| omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub"); |
| omap_ads7846_init(1, 57, 0, NULL); |
| } |
| |
| static void __init omap3_igep0020_legacy_init(void) |
| { |
| } |
| |
| static void __init omap3_evm_legacy_init(void) |
| { |
| legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 149); |
| } |
| |
| static void __init omap3_zoom_legacy_init(void) |
| { |
| legacy_init_wl12xx(WL12XX_REFCLOCK_26, 0, 162); |
| } |
| |
| 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(); |
| legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 145); |
| omap_ads7846_init(1, 57, 0, NULL); |
| } |
| |
| 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_warning("RX-51: Not enabling ARM errata 430973 workaround\n"); |
| pr_warning("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(); |
| } |
| #endif /* CONFIG_ARCH_OMAP3 */ |
| |
| #ifdef CONFIG_ARCH_OMAP4 |
| static void __init omap4_sdp_legacy_init(void) |
| { |
| legacy_init_wl12xx(WL12XX_REFCLOCK_26, |
| WL12XX_TCXOCLOCK_26, 53); |
| } |
| |
| static void __init omap4_panda_legacy_init(void) |
| { |
| legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 53); |
| } |
| |
| static void __init var_som_om44_legacy_init(void) |
| { |
| legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 41); |
| } |
| #endif |
| |
| #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 |
| |
| #ifdef CONFIG_SOC_AM33XX |
| static void __init am335x_evmsk_legacy_init(void) |
| { |
| legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 31); |
| } |
| #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 */ }, |
| }; |
| |
| struct of_dev_auxdata omap_auxdata_lookup[] __initdata = { |
| #ifdef CONFIG_MACH_NOKIA_N8X0 |
| OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL), |
| #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_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 |
| #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", omap3_igep0020_legacy_init, }, |
| { "ti,omap3-evm-37xx", omap3_evm_legacy_init, }, |
| { "ti,omap3-zoom3", omap3_zoom_legacy_init, }, |
| { "ti,am3517-evm", am3517_evm_legacy_init, }, |
| { "technexion,omap3-tao3530", omap3_tao3530_legacy_init, }, |
| #endif |
| #ifdef CONFIG_ARCH_OMAP4 |
| { "ti,omap4-sdp", omap4_sdp_legacy_init, }, |
| { "ti,omap4-panda", omap4_panda_legacy_init, }, |
| { "variscite,var-dvk-om44", var_som_om44_legacy_init, }, |
| { "variscite,var-stk-om44", var_som_om44_legacy_init, }, |
| #endif |
| #ifdef CONFIG_SOC_AM33XX |
| { "ti,am335x-evmsk", am335x_evmsk_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(); |
| break; |
| } |
| quirks++; |
| } |
| } |
| |
| void __init pdata_quirks_init(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); |
| } |