static int __init ar100_init(void)
{
int ret;
AR100_LOG("sun6i ar100 driver v%s\n", DRV_VERSION);
ret = platform_driver_register(&sun6i_ar100_driver);
if (IS_ERR_VALUE(ret)) {
AR100_ERR("register sun6i ar100 platform driver failed\n");
goto err_platform_driver_register;
}
ret = platform_device_register(&sun6i_ar100_device);
if (IS_ERR_VALUE(ret)) {
AR100_ERR("register sun6i ar100 platform device failed\n");
goto err_platform_device_register;
}
sun6i_ar100_sysfs(&sun6i_ar100_device);
return 0;
err_platform_device_register:
platform_device_unregister(&sun6i_ar100_device);
err_platform_driver_register:
platform_driver_unregister(&sun6i_ar100_driver);
return -EINVAL;
}
static ssize_t ar100_dram_crc_paras_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t size)
{
u32 dram_crc_en = 0;
u32 dram_crc_srcaddr = 0;
u32 dram_crc_len = 0;
sscanf(buf, "%x %x %x\n", &dram_crc_en, &dram_crc_srcaddr, &dram_crc_len);
if (((dram_crc_en != 0) && (dram_crc_en != 1)) ||
((dram_crc_srcaddr < 0x40000000) || (dram_crc_srcaddr > 0xc0000000)) ||
((dram_crc_len < 0) || (dram_crc_len > (0x80000000)))) {
AR100_WRN("invalid ar100 debug dram crc paras [%x] [%x] [%x] to set\n",
dram_crc_en, dram_crc_srcaddr, dram_crc_len);
return size;
}
ar100_debug_dram_crc_en = dram_crc_en;
ar100_debug_dram_crc_srcaddr = dram_crc_srcaddr;
ar100_debug_dram_crc_len = dram_crc_len;
ar100_set_dram_crc_paras(ar100_debug_dram_crc_en,
ar100_debug_dram_crc_srcaddr,
ar100_debug_dram_crc_len);
AR100_LOG("dram_crc_en=0x%x, dram_crc_srcaddr=0x%x, dram_crc_len=0x%x\n",
ar100_debug_dram_crc_en, ar100_debug_dram_crc_srcaddr, ar100_debug_dram_crc_len);
return size;
}
/*
*********************************************************************************************************
* SEND MESSAGE BY HWMSGBOX
*
* Description: send one message to another processor by hwmsgbox.
*
* Arguments : pmessage : the pointer of sended message frame.
* timeout : the wait time limit when message fifo is full,
* it is valid only when parameter mode = HWMSG_SEND_WAIT_TIMEOUT.
*
* Returns : 0 if send message succeeded, other if failed.
*********************************************************************************************************
*/
int ar100_hwmsgbox_send_message(struct ar100_message *pmessage, unsigned int timeout)
{
volatile unsigned long value;
if (pmessage == NULL) {
return -EINVAL;
}
if (pmessage->attr & AR100_MESSAGE_ATTR_HARDSYN) {
//use ac327 hwsyn transmit channel.
while (readl(IO_ADDRESS(AW_MSGBOX_FIFO_STATUS_REG(AR100_HWMSGBOX_AC327_SYN_TX_CH))) == 1) {
//message-queue fifo is full, waiting always
;
}
value = ((volatile unsigned long)pmessage) - ar100_sram_a2_vbase;
AR100_INF("ac327 send hard syn message : %x\n", (unsigned int)value);
writel(value, IO_ADDRESS(AW_MSGBOX_MSG_REG(AR100_HWMSGBOX_AC327_SYN_TX_CH)));
//hwsyn messsage must feedback use syn rx channel
while (readl(IO_ADDRESS(AW_MSGBOX_MSG_STATUS_REG(AR100_HWMSGBOX_AC327_SYN_RX_CH))) == 0) {
//message not valid
;
}
//check message valid
if (value != (readl(IO_ADDRESS(AW_MSGBOX_MSG_REG(AR100_HWMSGBOX_AC327_SYN_RX_CH))))) {
AR100_ERR("hard syn message error\n");
return -EINVAL;
}
AR100_INF("ac327 hard syn message [%x, %x] feedback\n", (unsigned int)value, (unsigned int)pmessage->type);
return 0;
}
//use ac327 asyn transmit channel.
while (readl(IO_ADDRESS(AW_MSGBOX_FIFO_STATUS_REG(AR100_HWMSGBOX_AR100_ASYN_RX_CH))) == 1) {
//message-queue fifo is full, waiting always
;
}
//write message to message-queue fifo.
value = ((volatile unsigned long)pmessage) - ar100_sram_a2_vbase;
AR100_LOG("ac327 send message : %x\n", (unsigned int)value);
writel(value, IO_ADDRESS(AW_MSGBOX_MSG_REG(AR100_HWMSGBOX_AR100_ASYN_RX_CH)));
//syn messsage must wait message feedback
if (pmessage->attr & AR100_MESSAGE_ATTR_SOFTSYN) {
AR100_ERR("standby ar100 driver not support soft syn message transfer\n");
return -EINVAL;
}
return 0;
}
static ssize_t ar100_debug_baudrate_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t size)
{
u32 value = 0;
sscanf(buf, "%u", &value);
if ((value != 57600) && (value != 9600)) {
AR100_WRN("invalid ar100 uart baudrate [%d] to set\n", value);
return size;
}
ar100_debug_baudrate = value;
ar100_set_uart_baudrate(ar100_debug_baudrate);
AR100_LOG("debug_baudrate change to %d\n", ar100_debug_baudrate);
return size;
}
static ssize_t ar100_debug_mask_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t size)
{
u32 value = 0;
sscanf(buf, "%u", &value);
if ((value < 0) || (value > 3)) {
AR100_WRN("invalid ar100 debug mask [%d] to set\n", value);
return size;
}
ar100_debug_level = value;
ar100_set_debug_level(ar100_debug_level);
AR100_LOG("debug_mask change to %d\n", ar100_debug_level);
return size;
}
static ssize_t ar100_dram_crc_result_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t size)
{
u32 error = 0;
u32 total_count = 0;
u32 error_count = 0;
sscanf(buf, "%u %u %u", &error, &total_count, &error_count);
if (((error != 0) && (error != 1)) || (total_count < 0) || (error_count < 0)) {
AR100_WRN("invalid ar100 dram crc result [%d] [%d] [%d] to set\n", error, total_count, error_count);
return size;
}
ar100_debug_dram_crc_error = error;
ar100_debug_dram_crc_total_count = total_count;
ar100_debug_dram_crc_error_count = error_count;
ar100_set_dram_crc_result((unsigned long)ar100_debug_dram_crc_error,
(unsigned long)ar100_debug_dram_crc_total_count,
(unsigned long)ar100_debug_dram_crc_error_count);
AR100_LOG("debug_dram_crc_result change to error:%u total count:%u error count:%u\n",
ar100_debug_dram_crc_error, ar100_debug_dram_crc_total_count, ar100_debug_dram_crc_error_count);
return size;
}
static void __exit ar100_exit(void)
{
platform_device_unregister(&sun6i_ar100_device);
platform_driver_unregister(&sun6i_ar100_driver);
AR100_LOG("module unloaded\n");
}
static int sun6i_ar100_probe(struct platform_device *pdev)
{
int binary_len;
script_item_u script_val;
script_item_value_type_e type;
AR100_INF("ar100 initialize\n");
/*
* request ar100 resources:
* p2wi/uart gpio...
*/
sw_gpio_setcfg(GPIOL(0), 3); /* p2wi sck */
sw_gpio_setcfg(GPIOL(1), 3); /* p2wi sda */
type = script_get_item("cpus_config_paras", "cpus_uart_debug_used", &script_val);
if (SCIRPT_ITEM_VALUE_TYPE_INT != type) {
AR100_WRN("ar100 uart debug config type err!");
script_val.val = 1;
}
if (script_val.val) {
sw_gpio_setcfg(GPIOL(2), 2); /* uart tx */
sw_gpio_setcfg(GPIOL(3), 2); /* uart rx */
}
AR100_INF("ar100 uart debug config [%s] [%s] : %d\n", "cpus_config_paras", "cpus_uart_debug_used", script_val.val);
AR100_INF("sram_a2 vaddr(%x)\n", (unsigned int)ar100_sram_a2_vbase);
/* clear sram_a2 area */
memset((void *)ar100_sram_a2_vbase, 0, AW_SRAM_A2_SIZE);
/* load ar100 system binary data to sram_a2 */
binary_len = 0x13000;
memcpy((void *)ar100_sram_a2_vbase, (void *)(&ar100_binary_start), binary_len);
printk("move ar100 binary data [addr = %x, len = %x] to sram_a2 finished\n",
(unsigned int)(&ar100_binary_start), (unsigned int)binary_len);
/* initialize hwspinlock */
AR100_INF("hwspinlock initialize\n");
ar100_hwspinlock_init();
/* initialize hwmsgbox */
AR100_INF("hwmsgbox initialize\n");
ar100_hwmsgbox_init();
/* initialize message manager */
AR100_INF("message manager initialize\n");
ar100_message_manager_init();
/* set ar100 cpu reset to de-assert state */
AR100_INF("set ar100 reset to de-assert state\n");
{
volatile unsigned long value;
value = readl((IO_ADDRESS(AW_R_CPUCFG_BASE) + 0x0));
value |= 1;
writel(value, (IO_ADDRESS(AW_R_CPUCFG_BASE) + 0x0));
}
/* wait ar100 ready */
AR100_INF("wait ar100 ready....\n");
if (ar100_wait_ready(10000)) {
AR100_LOG("ar100 startup failed\n");
}
/* enable ar100 asyn tx interrupt */
ar100_hwmsgbox_enable_receiver_int(AR100_HWMSGBOX_AR100_ASYN_TX_CH, AW_HWMSG_QUEUE_USER_AC327);
/* enable ar100 syn tx interrupt */
ar100_hwmsgbox_enable_receiver_int(AR100_HWMSGBOX_AR100_SYN_TX_CH, AW_HWMSG_QUEUE_USER_AC327);
/* config dvfs v-f table */
if (ar100_dvfs_cfg_vf_table()) {
AR100_WRN("config dvfs v-f table failed\n");
}
/* config dram config paras */
if (ar100_config_dram_paras()) {
AR100_WRN("config dram paras failed\n");
}
/* config ir config paras */
if (ar100_config_ir_paras()) {
AR100_WRN("config ir paras failed\n");
}
/* config pmu config paras */
if (ar100_config_pmu_paras()) {
AR100_WRN("config pmu paras failed\n");
}
#ifdef CONFIG_PM
atomic_set(&ar100_suspend_flag, 0);
#endif
/* ar100 initialize succeeded */
AR100_INF("ar100 startup succeeded, driver version : %d\n", AR100_VERSIONS);
return 0;
}
