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-rw-r--r--kernel/arch/arm/mach-omap2/pdata-quirks.c388
1 files changed, 388 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-omap2/pdata-quirks.c b/kernel/arch/arm/mach-omap2/pdata-quirks.c
new file mode 100644
index 000000000..af11511dd
--- /dev/null
+++ b/kernel/arch/arm/mach-omap2/pdata-quirks.c
@@ -0,0 +1,388 @@
+/*
+ * 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/platform_data/pinctrl-single.h>
+#include <linux/platform_data/iommu-omap.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;
+
+#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");
+}
+
+static void __init omap3_sbc_t3530_legacy_init(void)
+{
+ omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
+}
+
+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();
+}
+#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
+
+#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),
+ 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_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),
+#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, },
+ { "ti,omap3-evm-37xx", omap3_evm_legacy_init, },
+ { "ti,am3517-evm", am3517_evm_legacy_init, },
+ { "technexion,omap3-tao3530", omap3_tao3530_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(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);
+}