diff options
Diffstat (limited to 'drivers/staging/westbridge/astoria/device/cyasdevice.c')
| -rw-r--r-- | drivers/staging/westbridge/astoria/device/cyasdevice.c | 409 |
1 files changed, 0 insertions, 409 deletions
diff --git a/drivers/staging/westbridge/astoria/device/cyasdevice.c b/drivers/staging/westbridge/astoria/device/cyasdevice.c deleted file mode 100644 index 7de35ccffd32..000000000000 --- a/drivers/staging/westbridge/astoria/device/cyasdevice.c +++ /dev/null @@ -1,409 +0,0 @@ -/* -## cyandevice.c - Linux Antioch device driver file -## =========================== -## Copyright (C) 2010 Cypress Semiconductor -## -## This program is free software; you can redistribute it and/or -## modify it under the terms of the GNU General Public License -## as published by the Free Software Foundation; either version 2 -## of the License, or (at your option) any later version. -## -## This program is distributed in the hope that it will be useful, -## but WITHOUT ANY WARRANTY; without even the implied warranty of -## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -## GNU General Public License for more details. -## -## You should have received a copy of the GNU General Public License -## along with this program; if not, write to the Free Software -## Foundation, Inc., 51 Franklin Street, Fifth Floor -## Boston, MA 02110-1301, USA. -## =========================== -*/ - -#include <linux/delay.h> -#include <linux/device.h> -#include <linux/sched.h> -#include <linux/scatterlist.h> -#include <linux/err.h> -#include <linux/firmware.h> -#include <linux/platform_device.h> -#include <linux/slab.h> - -/* moved for staging location - * update/patch submission -#include <linux/westbridge/cyastoria.h> -#include <linux/westbridge/cyashal.h> -#include <linux/westbridge/cyasregs.h> -*/ - -#include "../include/linux/westbridge/cyastoria.h" -#include "../include/linux/westbridge/cyashal.h" -#include "../include/linux/westbridge/cyasregs.h" - -typedef struct cyasdevice { - /* Handle to the Antioch device */ - cy_as_device_handle dev_handle; - /* Handle to the HAL */ - cy_as_hal_device_tag hal_tag; - spinlock_t common_lock; - unsigned long flags; -} cyasdevice; - -/* global ptr to astoria device */ -static cyasdevice *cy_as_device_controller; -int cy_as_device_init_done; -const char *dev_handle_name = "cy_astoria_dev_handle"; - -#ifdef CONFIG_MACH_OMAP3_WESTBRIDGE_AST_PNAND_HAL -extern void cy_as_hal_config_c_s_mux(void); -#endif - -static void cyasdevice_deinit(cyasdevice *cy_as_dev) -{ - cy_as_hal_print_message("<1>_cy_as_device deinitialize called\n"); - if (!cy_as_dev) { - cy_as_hal_print_message("<1>_cy_as_device_deinit: " - "device handle %x is invalid\n", (uint32_t)cy_as_dev); - return; - } - - /* stop west_brige */ - if (cy_as_dev->dev_handle) { - cy_as_hal_print_message("<1>_cy_as_device: " - "cy_as_misc_destroy_device called\n"); - if (cy_as_misc_destroy_device(cy_as_dev->dev_handle) != - CY_AS_ERROR_SUCCESS) { - cy_as_hal_print_message( - "<1>_cy_as_device: destroying failed\n"); - } - } - - if (cy_as_dev->hal_tag) { - - #ifdef CONFIG_MACH_OMAP3_WESTBRIDGE_AST_PNAND_HAL - if (stop_o_m_a_p_kernel(dev_handle_name, - cy_as_dev->hal_tag) != 0) - cy_as_hal_print_message("<1>_cy_as_device: stopping " - "OMAP kernel HAL failed\n"); - - #endif - } - cy_as_hal_print_message("<1>_cy_as_device:HAL layer stopped\n"); - - kfree(cy_as_dev); - cy_as_device_controller = NULL; - cy_as_hal_print_message("<1>_cy_as_device: deinitialized\n"); -} - -/*called from src/cyasmisc.c:MyMiscCallback() as a func - * pointer [dev_p->misc_event_cb] which was previously - * registered by CyAsLLRegisterRequestCallback(..., - * MyMiscCallback); called from CyAsMiscConfigureDevice() - * which is in turn called from cyasdevice_initialize() in - * this src - */ -static void cy_misc_callback(cy_as_device_handle h, - cy_as_misc_event_type evtype, void *evdata) -{ - (void)h; - (void)evdata; - - switch (evtype) { - case cy_as_event_misc_initialized: - cy_as_hal_print_message("<1>_cy_as_device: " - "initialization done callback triggered\n"); - cy_as_device_init_done = 1; - break; - - case cy_as_event_misc_awake: - cy_as_hal_print_message("<1>_cy_as_device: " - "cy_as_event_misc_awake event callback triggered\n"); - cy_as_device_init_done = 1; - break; - default: - break; - } -} - -void cy_as_acquire_common_lock() -{ - spin_lock_irqsave(&cy_as_device_controller->common_lock, - cy_as_device_controller->flags); -} -EXPORT_SYMBOL(cy_as_acquire_common_lock); - -void cy_as_release_common_lock() -{ - spin_unlock_irqrestore(&cy_as_device_controller->common_lock, - cy_as_device_controller->flags); -} -EXPORT_SYMBOL(cy_as_release_common_lock); - -/* reset astoria and reinit all regs */ - #define PNAND_REG_CFG_INIT_VAL 0x0000 -void hal_reset(cy_as_hal_device_tag tag) -{ - cy_as_hal_print_message("<1> send soft hard rst: " - "MEM_RST_CTRL_REG_HARD...\n"); - cy_as_hal_write_register(tag, CY_AS_MEM_RST_CTRL_REG, - CY_AS_MEM_RST_CTRL_REG_HARD); - mdelay(60); - - cy_as_hal_print_message("<1> after RST: si_rev_REG:%x, " - "PNANDCFG_reg:%x\n", - cy_as_hal_read_register(tag, CY_AS_MEM_CM_WB_CFG_ID), - cy_as_hal_read_register(tag, CY_AS_MEM_PNAND_CFG) - ); - - /* set it to LBD */ - cy_as_hal_write_register(tag, CY_AS_MEM_PNAND_CFG, - PNAND_REG_CFG_INIT_VAL); -} -EXPORT_SYMBOL(hal_reset); - - -/* below structures and functions primarily - * implemented for firmware loading */ -static struct platform_device *westbridge_pd; - -static int __devinit wb_probe(struct platform_device *devptr) -{ - cy_as_hal_print_message("%s called\n", __func__); - return 0; -} - -static int __devexit wb_remove(struct platform_device *devptr) -{ - cy_as_hal_print_message("%s called\n", __func__); - return 0; -} - -static struct platform_driver west_bridge_driver = { - .probe = wb_probe, - .remove = __devexit_p(wb_remove), - .driver = { - .name = "west_bridge_dev"}, -}; - -/* west bridge device driver main init */ -static int cyasdevice_initialize(void) -{ - cyasdevice *cy_as_dev = 0; - int ret = 0; - int retval = 0; - cy_as_device_config config; - cy_as_hal_sleep_channel channel; - cy_as_get_firmware_version_data ver_data = {0}; - const char *str = ""; - int spin_lim; - const struct firmware *fw_entry; - - cy_as_device_init_done = 0; - - cy_as_misc_set_log_level(8); - - cy_as_hal_print_message("<1>_cy_as_device initialize called\n"); - - if (cy_as_device_controller != 0) { - cy_as_hal_print_message("<1>_cy_as_device: the device " - "has already been initilaized. ignoring\n"); - return -EBUSY; - } - - /* cy_as_dev = CyAsHalAlloc (sizeof(cyasdevice), SLAB_KERNEL); */ - cy_as_dev = cy_as_hal_alloc(sizeof(cyasdevice)); - if (cy_as_dev == NULL) { - cy_as_hal_print_message("<1>_cy_as_device: " - "memory allocation failed\n"); - return -ENOMEM; - } - memset(cy_as_dev, 0, sizeof(cyasdevice)); - - - /* Init the HAL & CyAsDeviceHandle */ - - #ifdef CONFIG_MACH_OMAP3_WESTBRIDGE_AST_PNAND_HAL - /* start OMAP HAL init instsnce */ - - if (!start_o_m_a_p_kernel(dev_handle_name, - &(cy_as_dev->hal_tag), cy_false)) { - - cy_as_hal_print_message( - "<1>_cy_as_device: start OMAP34xx HAL failed\n"); - goto done; - } - #endif - - /* Now create the device */ - if (cy_as_misc_create_device(&(cy_as_dev->dev_handle), - cy_as_dev->hal_tag) != CY_AS_ERROR_SUCCESS) { - - cy_as_hal_print_message( - "<1>_cy_as_device: create device failed\n"); - goto done; - } - - memset(&config, 0, sizeof(config)); - config.dmaintr = cy_true; - - ret = cy_as_misc_configure_device(cy_as_dev->dev_handle, &config); - if (ret != CY_AS_ERROR_SUCCESS) { - - cy_as_hal_print_message( - "<1>_cy_as_device: configure device " - "failed. reason code: %d\n", ret); - goto done; - } - - ret = cy_as_misc_register_callback(cy_as_dev->dev_handle, - cy_misc_callback); - if (ret != CY_AS_ERROR_SUCCESS) { - cy_as_hal_print_message("<1>_cy_as_device: " - "cy_as_misc_register_callback failed. " - "reason code: %d\n", ret); - goto done; - } - - ret = platform_driver_register(&west_bridge_driver); - if (unlikely(ret < 0)) - return ret; - westbridge_pd = platform_device_register_simple( - "west_bridge_dev", -1, NULL, 0); - - if (IS_ERR(westbridge_pd)) { - platform_driver_unregister(&west_bridge_driver); - return PTR_ERR(westbridge_pd); - } - /* Load the firmware */ - ret = request_firmware(&fw_entry, - "west bridge fw", &westbridge_pd->dev); - if (ret) { - cy_as_hal_print_message("cy_as_device: " - "request_firmware failed return val = %d\n", ret); - } else { - cy_as_hal_print_message("cy_as_device: " - "got the firmware %d size=0x%x\n", ret, fw_entry->size); - - ret = cy_as_misc_download_firmware( - cy_as_dev->dev_handle, - fw_entry->data, - fw_entry->size , - 0, 0); - } - - if (ret != CY_AS_ERROR_SUCCESS) { - cy_as_hal_print_message("<1>_cy_as_device: cannot download " - "firmware. reason code: %d\n", ret); - goto done; - } - - /* spin until the device init is completed */ - /* 50 -MAX wait time for the FW load & init - * to complete is 5sec*/ - spin_lim = 50; - - cy_as_hal_create_sleep_channel(&channel); - while (!cy_as_device_init_done) { - - cy_as_hal_sleep_on(&channel, 100); - - if (spin_lim-- <= 0) { - cy_as_hal_print_message( - "<1>\n_e_r_r_o_r!: " - "wait for FW init has timed out !!!"); - break; - } - } - cy_as_hal_destroy_sleep_channel(&channel); - - if (spin_lim > 0) - cy_as_hal_print_message( - "cy_as_device: astoria firmware is loaded\n"); - - ret = cy_as_misc_get_firmware_version(cy_as_dev->dev_handle, - &ver_data, 0, 0); - if (ret != CY_AS_ERROR_SUCCESS) { - cy_as_hal_print_message("<1>_cy_as_device: cannot get firmware " - "version. reason code: %d\n", ret); - goto done; - } - - if ((ver_data.media_type & 0x01) && (ver_data.media_type & 0x06)) - str = "nand and SD/MMC."; - else if ((ver_data.media_type & 0x01) && (ver_data.media_type & 0x08)) - str = "nand and CEATA."; - else if (ver_data.media_type & 0x01) - str = "nand."; - else if (ver_data.media_type & 0x08) - str = "CEATA."; - else - str = "SD/MMC."; - - cy_as_hal_print_message("<1> cy_as_device:_firmware version: %s " - "major=%d minor=%d build=%d,\n_media types supported:%s\n", - ((ver_data.is_debug_mode) ? "debug" : "release"), - ver_data.major, ver_data.minor, ver_data.build, str); - - spin_lock_init(&cy_as_dev->common_lock); - - /* done now */ - cy_as_device_controller = cy_as_dev; - - return 0; - -done: - if (cy_as_dev) - cyasdevice_deinit(cy_as_dev); - - return -EINVAL; -} - -cy_as_device_handle cyasdevice_getdevhandle(void) -{ - if (cy_as_device_controller) { - #ifdef CONFIG_MACH_OMAP3_WESTBRIDGE_AST_PNAND_HAL - cy_as_hal_config_c_s_mux(); - #endif - - return cy_as_device_controller->dev_handle; - } - return NULL; -} -EXPORT_SYMBOL(cyasdevice_getdevhandle); - -cy_as_hal_device_tag cyasdevice_gethaltag(void) -{ - if (cy_as_device_controller) - return (cy_as_hal_device_tag) - cy_as_device_controller->hal_tag; - - return NULL; -} -EXPORT_SYMBOL(cyasdevice_gethaltag); - - -/*init Westbridge device driver **/ -static int __init cyasdevice_init(void) -{ - if (cyasdevice_initialize() != 0) - return -ENODEV; - - return 0; -} - - -static void __exit cyasdevice_cleanup(void) -{ - - cyasdevice_deinit(cy_as_device_controller); -} - - -MODULE_DESCRIPTION("west bridge device driver"); -MODULE_AUTHOR("cypress semiconductor"); -MODULE_LICENSE("GPL"); - -module_init(cyasdevice_init); -module_exit(cyasdevice_cleanup); - -/*[]*/ |