X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=arch%2Farm%2Fmach-omap2%2Fdevices.c;h=818452ac905d5f568c896ddbd0cdec7a9a49c358;hb=20252d46597e457b7506f28be05478be457b8c4f;hp=2dbb265bedd4e914c6ceac472dbe9a0b8bddbf0b;hpb=95ee46aa8698f2000647dfb362400fadbb5807cf;p=deliverable%2Flinux.git diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c index 2dbb265bedd4..818452ac905d 100644 --- a/arch/arm/mach-omap2/devices.c +++ b/arch/arm/mach-omap2/devices.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include @@ -28,6 +29,8 @@ #include #include #include +#include +#include #include "mux.h" @@ -498,6 +501,76 @@ static void omap_init_sham(void) static inline void omap_init_sham(void) { } #endif +#if defined(CONFIG_CRYPTO_DEV_OMAP_AES) || defined(CONFIG_CRYPTO_DEV_OMAP_AES_MODULE) + +#ifdef CONFIG_ARCH_OMAP2 +static struct resource omap2_aes_resources[] = { + { + .start = OMAP24XX_SEC_AES_BASE, + .end = OMAP24XX_SEC_AES_BASE + 0x4C, + .flags = IORESOURCE_MEM, + }, + { + .start = OMAP24XX_DMA_AES_TX, + .flags = IORESOURCE_DMA, + }, + { + .start = OMAP24XX_DMA_AES_RX, + .flags = IORESOURCE_DMA, + } +}; +static int omap2_aes_resources_sz = ARRAY_SIZE(omap2_aes_resources); +#else +#define omap2_aes_resources NULL +#define omap2_aes_resources_sz 0 +#endif + +#ifdef CONFIG_ARCH_OMAP3 +static struct resource omap3_aes_resources[] = { + { + .start = OMAP34XX_SEC_AES_BASE, + .end = OMAP34XX_SEC_AES_BASE + 0x4C, + .flags = IORESOURCE_MEM, + }, + { + .start = OMAP34XX_DMA_AES2_TX, + .flags = IORESOURCE_DMA, + }, + { + .start = OMAP34XX_DMA_AES2_RX, + .flags = IORESOURCE_DMA, + } +}; +static int omap3_aes_resources_sz = ARRAY_SIZE(omap3_aes_resources); +#else +#define omap3_aes_resources NULL +#define omap3_aes_resources_sz 0 +#endif + +static struct platform_device aes_device = { + .name = "omap-aes", + .id = -1, +}; + +static void omap_init_aes(void) +{ + if (cpu_is_omap24xx()) { + aes_device.resource = omap2_aes_resources; + aes_device.num_resources = omap2_aes_resources_sz; + } else if (cpu_is_omap34xx()) { + aes_device.resource = omap3_aes_resources; + aes_device.num_resources = omap3_aes_resources_sz; + } else { + pr_err("%s: platform not supported\n", __func__); + return; + } + platform_device_register(&aes_device); +} + +#else +static inline void omap_init_aes(void) { } +#endif + /*-------------------------------------------------------------------------*/ #if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4) @@ -624,7 +697,7 @@ static inline void omap2_mmc_mux(struct omap_mmc_platform_data *mmc_controller, omap_mux_init_signal("sdmmc_dat0", 0); omap_mux_init_signal("sdmmc_dat_dir0", 0); omap_mux_init_signal("sdmmc_cmd_dir", 0); - if (mmc_controller->slots[0].wires == 4) { + if (mmc_controller->slots[0].caps & MMC_CAP_4_BIT_DATA) { omap_mux_init_signal("sdmmc_dat1", 0); omap_mux_init_signal("sdmmc_dat2", 0); omap_mux_init_signal("sdmmc_dat3", 0); @@ -652,8 +725,8 @@ static inline void omap2_mmc_mux(struct omap_mmc_platform_data *mmc_controller, OMAP_PIN_INPUT_PULLUP); omap_mux_init_signal("sdmmc1_dat0", OMAP_PIN_INPUT_PULLUP); - if (mmc_controller->slots[0].wires == 4 || - mmc_controller->slots[0].wires == 8) { + if (mmc_controller->slots[0].caps & + (MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA)) { omap_mux_init_signal("sdmmc1_dat1", OMAP_PIN_INPUT_PULLUP); omap_mux_init_signal("sdmmc1_dat2", @@ -661,7 +734,8 @@ static inline void omap2_mmc_mux(struct omap_mmc_platform_data *mmc_controller, omap_mux_init_signal("sdmmc1_dat3", OMAP_PIN_INPUT_PULLUP); } - if (mmc_controller->slots[0].wires == 8) { + if (mmc_controller->slots[0].caps & + MMC_CAP_8_BIT_DATA) { omap_mux_init_signal("sdmmc1_dat4", OMAP_PIN_INPUT_PULLUP); omap_mux_init_signal("sdmmc1_dat5", @@ -685,8 +759,8 @@ static inline void omap2_mmc_mux(struct omap_mmc_platform_data *mmc_controller, * For 8 wire configurations, Lines DAT4, 5, 6 and 7 need to be muxed * in the board-*.c files */ - if (mmc_controller->slots[0].wires == 4 || - mmc_controller->slots[0].wires == 8) { + if (mmc_controller->slots[0].caps & + (MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA)) { omap_mux_init_signal("sdmmc2_dat1", OMAP_PIN_INPUT_PULLUP); omap_mux_init_signal("sdmmc2_dat2", @@ -694,7 +768,8 @@ static inline void omap2_mmc_mux(struct omap_mmc_platform_data *mmc_controller, omap_mux_init_signal("sdmmc2_dat3", OMAP_PIN_INPUT_PULLUP); } - if (mmc_controller->slots[0].wires == 8) { + if (mmc_controller->slots[0].caps & + MMC_CAP_8_BIT_DATA) { omap_mux_init_signal("sdmmc2_dat4.sdmmc2_dat4", OMAP_PIN_INPUT_PULLUP); omap_mux_init_signal("sdmmc2_dat5.sdmmc2_dat5", @@ -745,13 +820,13 @@ void __init omap2_init_mmc(struct omap_mmc_platform_data **mmc_data, case 3: if (!cpu_is_omap44xx()) return; - base = OMAP4_MMC4_BASE + OMAP4_MMC_REG_OFFSET; + base = OMAP4_MMC4_BASE; irq = OMAP44XX_IRQ_MMC4; break; case 4: if (!cpu_is_omap44xx()) return; - base = OMAP4_MMC5_BASE + OMAP4_MMC_REG_OFFSET; + base = OMAP4_MMC5_BASE; irq = OMAP44XX_IRQ_MMC5; break; default: @@ -762,10 +837,8 @@ void __init omap2_init_mmc(struct omap_mmc_platform_data **mmc_data, size = OMAP2420_MMC_SIZE; name = "mmci-omap"; } else if (cpu_is_omap44xx()) { - if (i < 3) { - base += OMAP4_MMC_REG_OFFSET; + if (i < 3) irq += OMAP44XX_IRQ_GIC_START; - } size = OMAP4_HSMMC_SIZE; name = "mmci-omap-hs"; } else { @@ -841,11 +914,72 @@ static inline void omap_init_vout(void) {} /*-------------------------------------------------------------------------*/ +/* + * Inorder to avoid any assumptions from bootloader regarding WDT + * settings, WDT module is reset during init. This enables the watchdog + * timer. Hence it is required to disable the watchdog after the WDT reset + * during init. Otherwise the system would reboot as per the default + * watchdog timer registers settings. + */ +#define OMAP_WDT_WPS (0x34) +#define OMAP_WDT_SPR (0x48) + +static int omap2_disable_wdt(struct omap_hwmod *oh, void *unused) +{ + void __iomem *base; + int ret; + + if (!oh) { + pr_err("%s: Could not look up wdtimer_hwmod\n", __func__); + return -EINVAL; + } + + base = omap_hwmod_get_mpu_rt_va(oh); + if (!base) { + pr_err("%s: Could not get the base address for %s\n", + oh->name, __func__); + return -EINVAL; + } + + /* Enable the clocks before accessing the WDT registers */ + ret = omap_hwmod_enable(oh); + if (ret) { + pr_err("%s: Could not enable clocks for %s\n", + oh->name, __func__); + return ret; + } + + /* sequence required to disable watchdog */ + __raw_writel(0xAAAA, base + OMAP_WDT_SPR); + while (__raw_readl(base + OMAP_WDT_WPS) & 0x10) + cpu_relax(); + + __raw_writel(0x5555, base + OMAP_WDT_SPR); + while (__raw_readl(base + OMAP_WDT_WPS) & 0x10) + cpu_relax(); + + ret = omap_hwmod_idle(oh); + if (ret) + pr_err("%s: Could not disable clocks for %s\n", + oh->name, __func__); + + return ret; +} + +static void __init omap_disable_wdt(void) +{ + if (cpu_class_is_omap2()) + omap_hwmod_for_each_by_class("wd_timer", + omap2_disable_wdt, NULL); + return; +} + static int __init omap2_init_devices(void) { /* please keep these calls, and their implementations above, * in alphabetical order so they're easier to sort through. */ + omap_disable_wdt(); omap_hsmmc_reset(); omap_init_camera(); omap_init_mbox(); @@ -854,8 +988,45 @@ static int __init omap2_init_devices(void) omap_hdq_init(); omap_init_sti(); omap_init_sham(); + omap_init_aes(); omap_init_vout(); return 0; } arch_initcall(omap2_init_devices); + +#if defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE) +struct omap_device_pm_latency omap_wdt_latency[] = { + [0] = { + .deactivate_func = omap_device_idle_hwmods, + .activate_func = omap_device_enable_hwmods, + .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST, + }, +}; + +static int __init omap_init_wdt(void) +{ + int id = -1; + struct omap_device *od; + struct omap_hwmod *oh; + char *oh_name = "wd_timer2"; + char *dev_name = "omap_wdt"; + + if (!cpu_class_is_omap2()) + return 0; + + oh = omap_hwmod_lookup(oh_name); + if (!oh) { + pr_err("Could not look up wd_timer%d hwmod\n", id); + return -EINVAL; + } + + od = omap_device_build(dev_name, id, oh, NULL, 0, + omap_wdt_latency, + ARRAY_SIZE(omap_wdt_latency), 0); + WARN(IS_ERR(od), "Cant build omap_device for %s:%s.\n", + dev_name, oh->name); + return 0; +} +subsys_initcall(omap_init_wdt); +#endif