void __init s3c2443_init_clocks(int xtal)
{
unsigned long epllcon = __raw_readl(S3C2443_EPLLCON);
int ptr;
clk_epll.rate = s3c2443_get_epll(epllcon, xtal);
clk_epll.parent = &clk_epllref.clk;
s3c2443_common_init_clocks(xtal, s3c2443_get_mpll, s3c2443_fclk_div);
s3c2443_setup_clocks();
s3c24xx_register_clocks(clks, ARRAY_SIZE(clks));
for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++)
s3c_register_clksrc(clksrcs[ptr], 1);
/* register clocks from clock array */
s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));
/* We must be careful disabling the clocks we are not intending to
* be using at boot time, as subsystems such as the LCD which do
* their own DMA requests to the bus can cause the system to lockup
* if they where in the middle of requesting bus access.
*
* Disabling the LCD clock if the LCD is active is very dangerous,
* and therefore the bootloader should be careful to not enable
* the LCD clock if it is not needed.
*/
/* install (and disable) the clocks we do not need immediately */
s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
s3c_pwmclk_init();
}
void __init s3c2443_init_clocks(int xtal)
{
struct clk *clkp;
unsigned long epllcon = __raw_readl(S3C2443_EPLLCON);
int ret;
int ptr;
/* s3c2443 parents h and p clocks from prediv */
clk_h.parent = &clk_prediv;
clk_p.parent = &clk_prediv;
s3c24xx_register_baseclocks(xtal);
s3c2443_setup_clocks();
s3c2443_clk_initparents();
for (ptr = 0; ptr < ARRAY_SIZE(clks); ptr++) {
clkp = clks[ptr];
ret = s3c24xx_register_clock(clkp);
if (ret < 0) {
printk(KERN_ERR "Failed to register clock %s (%d)\n",
clkp->name, ret);
}
}
clk_epll.rate = s3c2443_get_epll(epllcon, xtal);
clk_epll.parent = &clk_epllref;
clk_usb_bus.parent = &clk_usb_bus_host;
/* ensure usb bus clock is within correct rate of 48MHz */
if (clk_get_rate(&clk_usb_bus_host) != (48 * 1000 * 1000)) {
printk(KERN_INFO "Warning: USB host bus not at 48MHz\n");
clk_set_rate(&clk_usb_bus_host, 48*1000*1000);
}
printk("S3C2443: epll %s %ld.%03ld MHz, usb-bus %ld.%03ld MHz\n",
(epllcon & S3C2443_PLLCON_OFF) ? "off":"on",
print_mhz(clk_get_rate(&clk_epll)),
print_mhz(clk_get_rate(&clk_usb_bus)));
/* register clocks from clock array */
s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));
/* We must be careful disabling the clocks we are not intending to
* be using at boot time, as subsystems such as the LCD which do
* their own DMA requests to the bus can cause the system to lockup
* if they where in the middle of requesting bus access.
*
* Disabling the LCD clock if the LCD is active is very dangerous,
* and therefore the bootloader should be careful to not enable
* the LCD clock if it is not needed.
*/
/* install (and disable) the clocks we do not need immediately */
clkp = init_clocks_disable;
for (ptr = 0; ptr < ARRAY_SIZE(init_clocks_disable); ptr++, clkp++) {
ret = s3c24xx_register_clock(clkp);
if (ret < 0) {
printk(KERN_ERR "Failed to register clock %s (%d)\n",
clkp->name, ret);
}
(clkp->enable)(clkp, 0);
}
s3c_pwmclk_init();
}
void __init s3c2443_init_clocks(int xtal)
{
struct clk *clkp;
unsigned long epllcon = __raw_readl(S3C2443_EPLLCON);
int ret;
int ptr;
clk_h.parent = &clk_prediv;
clk_p.parent = &clk_prediv;
s3c24xx_register_baseclocks(xtal);
s3c2443_setup_clocks();
s3c2443_clk_initparents();
for (ptr = 0; ptr < ARRAY_SIZE(clks); ptr++) {
clkp = clks[ptr];
ret = s3c24xx_register_clock(clkp);
if (ret < 0) {
printk(KERN_ERR "Failed to register clock %s (%d)\n",
clkp->name, ret);
}
}
clk_epll.rate = s3c2443_get_epll(epllcon, xtal);
clk_epll.parent = &clk_epllref;
clk_usb_bus.parent = &clk_usb_bus_host;
if (clk_get_rate(&clk_usb_bus_host) != (48 * 1000 * 1000)) {
printk(KERN_INFO "Warning: USB host bus not at 48MHz\n");
clk_set_rate(&clk_usb_bus_host, 48*1000*1000);
}
printk("S3C2443: epll %s %ld.%03ld MHz, usb-bus %ld.%03ld MHz\n",
(epllcon & S3C2443_PLLCON_OFF) ? "off":"on",
print_mhz(clk_get_rate(&clk_epll)),
print_mhz(clk_get_rate(&clk_usb_bus)));
clkp = init_clocks;
for (ptr = 0; ptr < ARRAY_SIZE(init_clocks); ptr++, clkp++) {
ret = s3c24xx_register_clock(clkp);
if (ret < 0) {
printk(KERN_ERR "Failed to register clock %s (%d)\n",
clkp->name, ret);
}
}
clkp = init_clocks_disable;
for (ptr = 0; ptr < ARRAY_SIZE(init_clocks_disable); ptr++, clkp++) {
ret = s3c24xx_register_clock(clkp);
if (ret < 0) {
printk(KERN_ERR "Failed to register clock %s (%d)\n",
clkp->name, ret);
}
(clkp->enable)(clkp, 0);
}
s3c_pwmclk_init();
}
