/*
************************************************************************************************************
*
* function
*
* 函数名称：
*
* 参数列表：
*
* 返回值 ：
*
* 说明 ：
*
*
************************************************************************************************************
*/
int power_oz_probe(void)
{
int ret;
u32 oz_power_hd;
user_gpio_set_t oz_gpio_cfg[1];
memset(oz_gpio_cfg, 0, sizeof(oz_gpio_cfg));
ret = script_parser_fetch("external_power", "a15_pwr_en", (int*)&oz_gpio_cfg[0], sizeof(oz_gpio_cfg[0])/sizeof(int));
if(ret)
{
printf("get a15_pwr_en cfg failed\n");
return -1;
}
oz_gpio_cfg[0].data = 1;
//配置使能gpio
ret = script_parser_patch("external_power", "a15_pwr_en", (int*)&oz_gpio_cfg[0], sizeof(oz_gpio_cfg[0])/sizeof(int));
if(ret)
{
printf("patch a15_pwr_en config failed\n");
return -2;
}
oz_power_hd = gpio_request_simple("external_power", "a15_pwr_en");
if(oz_power_hd)
{
printf("set gpio failed\n");
return -3;
}
return 0;
}
/* ************************************************************************************************************ * * function * * name : modify_uboot_uart * * parmeters : * * return : * * note : [email protected] * * ************************************************************************************************************ */ int modify_uboot_uart(void) { script_gpio_set_t fetch_cfg_gpio[2]; u32 reg = 0; int uart_port_id = 0; //disable uart0 if(script_parser_fetch("uart_para","uart_debug_rx",(int *)(&fetch_cfg_gpio[0]),sizeof(script_gpio_set_t)/4)) { printf("debug_mode_error: can't find card0_rx \n"); return -1; } fetch_cfg_gpio[0].mul_sel = 0; if(script_parser_patch("uart_para","uart_debug_rx",(void*)&fetch_cfg_gpio[0],sizeof(script_gpio_set_t)/4)) { printf("debug_mode_error : can't patch uart_debug_rx\n"); return -1; } //config uart_tx if(script_parser_fetch("uart_para","uart_debug_tx",(int *)(&fetch_cfg_gpio[1]),sizeof(script_gpio_set_t)/4)) { printf("debug_mode_error: can't find card0_tx \n"); return -1; } fetch_cfg_gpio[1].mul_sel = 0; if(script_parser_patch("uart_para","uart_debug_tx",(void*)&fetch_cfg_gpio[1],sizeof(script_gpio_set_t)/4)) { printf("debug_mode_error : can't patch uart_debug_tx\n"); return -1; } //disable uart0 gpio_request_simple("uart_para",NULL); //port_id if(script_parser_fetch("force_uart_para","force_uart_port",(int *)(&uart_port_id),sizeof(int)/4)) { printf("debug_mode_error: can't find card0_tx \n"); return -1; } if(script_parser_patch("uart_para","uart_debug_port",(int *)(&uart_port_id),sizeof(int)/4)) { printf("debug_mode_error: can't find card0_tx \n"); return -1; } if(script_parser_fetch("force_uart_para","force_uart_tx",(int *)(&fetch_cfg_gpio[0]),sizeof(script_gpio_set_t)/4)) { printf("debug_mode_error: can't find card0_tx \n"); return -1; } if(script_parser_patch("uart_para","uart_debug_tx",(void*)&fetch_cfg_gpio[0],sizeof(script_gpio_set_t)/4)) { printf("debug_mode_error : can't patch uart_debug_tx\n"); return -1; } if(script_parser_fetch("force_uart_para","force_uart_rx",(int *)(&fetch_cfg_gpio[1]),sizeof(script_gpio_set_t)/4)) { printf("debug_mode_error: can't find card0_tx \n"); return -1; } if(script_parser_patch("uart_para","uart_debug_rx",(void*)&fetch_cfg_gpio[1],sizeof(script_gpio_set_t)/4)) { printf("debug_mode_error : can't patch uart_debug_tx\n"); return -1; } printf("uart_port_id = %d\n",uart_port_id); uboot_spare_head.boot_data.uart_port = uart_port_id; //reset #ifdef UART_RST_CTRL reg = readl(UART_RST_CTRL); reg &= ~(1 << (16 + uart_port_id)); reg |= (1 << (16 + uart_port_id)); writel(reg,UART_RST_CTRL); #endif //gate reg = readl(UART_GATE_CTRL); reg &= ~(1 << (16 + uart_port_id)); reg |= (1 << (16 + uart_port_id)); writel(reg,UART_GATE_CTRL); //enable card0 gpio_request_simple("uart_para",NULL); serial_init(); return 0; }
/*
************************************************************************************************************
*
* function
*
* 函数名称：
*
* 参数列表：
* int set_vol: not using
* int onoff: not using
* 返回值 ：
*
* 说明 ：根据sys_config.fex 配置进行设置电压, 先设置电压，在使能或者关闭
*
*
************************************************************************************************************
*/
int power_oz_set_dcdc(int set_vol, int onoff)
{
int ret;
u32 oz_power_hd;
user_gpio_set_t oz_gpio_cfg[1];
//配置输出电压
if(set_vol > 0)
{
ret = power_oz_patch_gpio(set_vol);
if(ret)
{
printf("oz power patch config failed\n");
return -1;
}
oz_power_hd = gpio_request_simple("external_power", "a15_vset1");
if(oz_power_hd)
{
printf("set gpio failed\n");
return -3;
}
oz_power_hd = gpio_request_simple("external_power", "a15_vset2");
if(oz_power_hd)
{
printf("set gpio failed\n");
return -3;
}
oz_power_hd = gpio_request_simple("external_power", "a15_vset3");
if(oz_power_hd)
{
printf("set gpio failed\n");
return -3;
}
}
if(onoff < 0)
{
return 0;
}
memset(oz_gpio_cfg, 0, sizeof(oz_gpio_cfg));
ret = script_parser_fetch("external_power", "a15_pwr_en", (int*)&oz_gpio_cfg[0], sizeof(oz_gpio_cfg[0])/sizeof(int));
if(ret)
{
printf("get a15_pwr_en cfg failed\n");
return -1;
}
if(onoff == 0)
{
oz_gpio_cfg[0].data = 0;
}
else
{
oz_gpio_cfg[0].data = 1;
}
//配置使能gpio
ret = script_parser_patch("external_power", "a15_pwr_en", (int*)&oz_gpio_cfg[0], sizeof(oz_gpio_cfg[0])/sizeof(int));
if(ret)
{
printf("patch a15_pwr_en config failed\n");
return -2;
}
oz_power_hd = gpio_request_simple("external_power", "a15_pwr_en");
if(oz_power_hd)
{
printf("set gpio failed\n");
return -3;
}
return 0;
}
/*
**********************************************************************************************************************
* i2c_init
*
* Description:
*
* Arguments :
*
* Returns : none
*
* Notes : none
*
**********************************************************************************************************************
*/
void i2c_init(int bus_id, int speed, int slaveaddr)
{
int i, clk_n, clk_m;
int reg_value = 0;
char twi_para[16] = {0};
uint twi_host = 0;
struct sunxi_twi_reg *i2c = NULL;
if(bus_id < SUNXI_TWI_COUNT)
{
twi_host = SUNXI_TWI0_BASE + SUNXI_TWI_OFFSET * bus_id;
}
else
{
printf("i2c bus id %d is error\n", bus_id);
return ;
}
i2c = (struct sunxi_twi_reg *)twi_host;
sprintf(twi_para, "twi%d", bus_id);
#if defined(CONFIG_ARCH_SUN9IW1P1)
//reset apb1 twi[bus_id]
reg_value = *((unsigned int *)CCM_APB1_RST_REG0);
reg_value |= (0x01 << bus_id);
*((unsigned int *)CCM_APB1_RST_REG0) = reg_value;
__msdelay(1);
//set apb1 twi[bus_id] gating
reg_value = *((unsigned int *)CCM_APB1_GATE0_CTRL);
reg_value |= (0x01 << bus_id);
*((unsigned int *)CCM_APB1_GATE0_CTRL) = reg_value;
#else
#if defined(CONFIG_ARCH_SUN8IW6P1)
reg_value = *((unsigned int *)CCMU_BUS_SOFT_RST_REG4);
reg_value |= (0x01 << bus_id);
*((unsigned int *)CCMU_BUS_SOFT_RST_REG4) = reg_value;
__msdelay(1);
reg_value = *((unsigned int *)CCMU_BUS_CLK_GATING_REG3);
reg_value |= (0x01 << bus_id);
*((unsigned int *)CCMU_BUS_CLK_GATING_REG3) = reg_value ;
#else
struct sunxi_ccm_reg *ccm_reg = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
#if !defined(CONFIG_ARCH_SUN5I)||!defined(CONFIG_ARCH_SUN7I)
/* reset i2c clock */
/* reset apb2 twi0*/
reg_value = *((unsigned int *)0x01c202d8);
reg_value |= 0x01;
*((unsigned int *)0x01c202d8) = reg_value;
__msdelay(1);
#endif
ccm_reg->apb1_gate &= ~1;
__msdelay(1);
ccm_reg->apb1_gate |= 1;
#endif
#endif
/* set i2c gpio */
//gpio_request_early((void *)uboot_spare_head.boot_data.twi_gpio, 2, 1);
gpio_request_simple(twi_para, NULL);
/* reset i2c control */
i = 0xffff;
i2c->srst = 1;
while((i2c->srst) && (i))
{
i --;
}
if((i2c->lcr & 0x30) != 0x30 )
{
/* toggle I2CSCL until bus idle */
i2c->lcr = 0x05;
__usdelay(500);
i = 10;
while ((i > 0) && ((i2c->lcr & 0x02) != 2))
{
i2c->lcr |= 0x08;
__usdelay(1000);
i2c->lcr &= ~0x08;
__usdelay(1000);
i--;
}
i2c->lcr = 0x0;
__usdelay(500);
}
if(speed < 100)
{
speed = 100;
}
else if(speed > 400)
{
speed = 400;
}
clk_n = 1;
clk_m = (24000/10)/((2^clk_n) * speed) - 1;
i2c->clk = (clk_m<<3) | clk_n;
i2c->ctl = 0x40;
i2c->eft = 0;
return ;
}
