#define __ASM_ARM_ARCH_CLK_H__
#include <asm/arch/hardware.h>
+#include <asm/arch/at91_pmc.h>
#include <asm/global_data.h>
static inline unsigned long get_cpu_clk_rate(void)
return gd->arch.at91_pllb_usb_init;
}
+#ifdef CPU_HAS_H32MXDIV
+static inline unsigned int get_h32mxdiv(void)
+{
+ struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+
+ return readl(&pmc->mckr) & AT91_PMC_MCKR_H32MXDIV;
+}
+#else
+static inline unsigned int get_h32mxdiv(void)
+{
+ return 0;
+}
+#endif
+
static inline unsigned long get_macb_pclk_rate(unsigned int dev_id)
{
- return get_mck_clk_rate();
+ if (get_h32mxdiv())
+ return get_mck_clk_rate() / 2;
+ else
+ return get_mck_clk_rate();
}
static inline unsigned long get_usart_clk_rate(unsigned int dev_id)
{
- return get_mck_clk_rate();
+ if (get_h32mxdiv())
+ return get_mck_clk_rate() / 2;
+ else
+ return get_mck_clk_rate();
}
static inline unsigned long get_lcdc_clk_rate(unsigned int dev_id)
static inline unsigned long get_spi_clk_rate(unsigned int dev_id)
{
- return get_mck_clk_rate();
+ if (get_h32mxdiv())
+ return get_mck_clk_rate() / 2;
+ else
+ return get_mck_clk_rate();
}
static inline unsigned long get_twi_clk_rate(unsigned int dev_id)
{
- return get_mck_clk_rate();
+ if (get_h32mxdiv())
+ return get_mck_clk_rate() / 2;
+ else
+ return get_mck_clk_rate();
}
static inline unsigned long get_mci_clk_rate(void)
{
- return get_mck_clk_rate();
+ if (get_h32mxdiv())
+ return get_mck_clk_rate() / 2;
+ else
+ return get_mck_clk_rate();
+}
+
+static inline unsigned long get_pit_clk_rate(void)
+{
+ if (get_h32mxdiv())
+ return get_mck_clk_rate() / 2;
+ else
+ return get_mck_clk_rate();
}
int at91_clock_init(unsigned long main_clock);