void mx31_dump_clocks(void)
{
u32 cpufreq = mx31_get_mcu_main_clk();
printf("mx31 cpu clock: %dMHz\n", cpufreq / 1000000);
printf("ipg clock : %dHz\n", mx31_get_ipg_clk());
printf("hsp clock : %dHz\n", mx31_get_hsp_clk());
}
void serial_setbrg (void)
{
u32 clk = mx31_get_ipg_clk();
if (!gd->baudrate)
gd->baudrate = CONFIG_BAUDRATE;
__REG(UART_PHYS + UFCR) = 4 << 7; /* divide input clock by 2 */
__REG(UART_PHYS + UBIR) = 0xf;
__REG(UART_PHYS + UBMR) = clk / (2 * gd->baudrate);
}
void i2c_init(int speed, int unused)
{
int freq;
int i;
#ifdef CONFIG_MX31
freq = mx31_get_ipg_clk();
#else
freq = mxc_get_clock(MXC_IPG_CLK);
#endif
for (i = 0; i < 0x1f; i++)
if (freq / div[i] <= speed)
break;
__REG16(i2c_port_addr[i2c_port_num] + IFDR) = i;
i2c_reset();
}
unsigned int mxc_get_clock(enum mxc_clock clk)
{
switch (clk) {
case MXC_ARM_CLK:
return mx31_get_mcu_main_clk();
case MXC_IPG_CLK:
case MXC_IPG_PERCLK:
case MXC_CSPI_CLK:
case MXC_UART_CLK:
case MXC_ESDHC_CLK:
case MXC_I2C_CLK:
return mx31_get_ipg_clk();
case MXC_IPU_CLK:
return mx31_get_hsp_clk();
}
return -1;
}
