#include <asm/io.h>
#include <asm/errno.h>
#include <asm/arch/imx-regs.h>
-#include <asm/arch/ccm_regs.h>
+#include <asm/arch/crm_regs.h>
#include <asm/arch/clock.h>
+#include <asm/arch/sys_proto.h>
enum pll_clocks {
PLL_SYS, /* System PLL */
PLL_ENET, /* ENET PLL */
};
-struct imx_ccm_reg *imx_ccm = (struct imx_ccm_reg *)CCM_BASE_ADDR;
+struct mxc_ccm_reg *imx_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
+
+void enable_usboh3_clk(unsigned char enable)
+{
+ u32 reg;
+
+ reg = __raw_readl(&imx_ccm->CCGR6);
+ if (enable)
+ reg |= MXC_CCM_CCGR6_USBOH3_MASK;
+ else
+ reg &= ~(MXC_CCM_CCGR6_USBOH3_MASK);
+ __raw_writel(reg, &imx_ccm->CCGR6);
+
+}
+
+#ifdef CONFIG_I2C_MXC
+/* i2c_num can be from 0 - 2 */
+int enable_i2c_clk(unsigned char enable, unsigned i2c_num)
+{
+ u32 reg;
+ u32 mask;
+
+ if (i2c_num > 2)
+ return -EINVAL;
+
+ mask = MXC_CCM_CCGR_CG_MASK
+ << (MXC_CCM_CCGR2_I2C1_SERIAL_OFFSET + (i2c_num << 1));
+ reg = __raw_readl(&imx_ccm->CCGR2);
+ if (enable)
+ reg |= mask;
+ else
+ reg &= ~mask;
+ __raw_writel(reg, &imx_ccm->CCGR2);
+ return 0;
+}
+#endif
static u32 decode_pll(enum pll_clocks pll, u32 infreq)
{
reg = __raw_readl(&imx_ccm->cacrr);
reg &= MXC_CCM_CACRR_ARM_PODF_MASK;
reg >>= MXC_CCM_CACRR_ARM_PODF_OFFSET;
- freq = decode_pll(PLL_SYS, CONFIG_SYS_MX6_HCLK);
+ freq = decode_pll(PLL_SYS, MXC_HCLK);
return freq / (reg + 1);
}
-static u32 get_periph_clk(void)
+u32 get_periph_clk(void)
{
u32 reg, freq = 0;
switch (reg) {
case 0:
- freq = decode_pll(PLL_USBOTG, CONFIG_SYS_MX6_HCLK);
+ freq = decode_pll(PLL_USBOTG, MXC_HCLK);
break;
case 1:
case 2:
- freq = CONFIG_SYS_MX6_HCLK;
+ freq = MXC_HCLK;
break;
default:
break;
switch (reg) {
case 0:
- freq = decode_pll(PLL_BUS, CONFIG_SYS_MX6_HCLK);
+ freq = decode_pll(PLL_BUS, MXC_HCLK);
break;
case 1:
freq = PLL2_PFD2_FREQ;
return freq;
}
-
-static u32 get_ahb_clk(void)
-{
- u32 reg, ahb_podf;
-
- reg = __raw_readl(&imx_ccm->cbcdr);
- reg &= MXC_CCM_CBCDR_AHB_PODF_MASK;
- ahb_podf = reg >> MXC_CCM_CBCDR_AHB_PODF_OFFSET;
-
- return get_periph_clk() / (ahb_podf + 1);
-}
-
static u32 get_ipg_clk(void)
{
u32 reg, ipg_podf;
root_freq = get_axi_clk();
break;
case 1:
- root_freq = decode_pll(PLL_USBOTG, CONFIG_SYS_MX6_HCLK);
+ root_freq = decode_pll(PLL_USBOTG, MXC_HCLK);
break;
case 2:
root_freq = PLL2_PFD2_FREQ;
return get_uart_clk();
}
+u32 imx_get_fecclk(void)
+{
+ return decode_pll(PLL_ENET, MXC_HCLK);
+}
+
+int enable_sata_clock(void)
+{
+ u32 reg = 0;
+ s32 timeout = 100000;
+ struct mxc_ccm_reg *const imx_ccm
+ = (struct mxc_ccm_reg *) CCM_BASE_ADDR;
+
+ /* Enable sata clock */
+ reg = readl(&imx_ccm->CCGR5); /* CCGR5 */
+ reg |= MXC_CCM_CCGR5_SATA_MASK;
+ writel(reg, &imx_ccm->CCGR5);
+
+ /* Enable PLLs */
+ reg = readl(&imx_ccm->analog_pll_enet);
+ reg &= ~BM_ANADIG_PLL_SYS_POWERDOWN;
+ writel(reg, &imx_ccm->analog_pll_enet);
+ reg |= BM_ANADIG_PLL_SYS_ENABLE;
+ while (timeout--) {
+ if (readl(&imx_ccm->analog_pll_enet) & BM_ANADIG_PLL_SYS_LOCK)
+ break;
+ }
+ if (timeout <= 0)
+ return -EIO;
+ reg &= ~BM_ANADIG_PLL_SYS_BYPASS;
+ writel(reg, &imx_ccm->analog_pll_enet);
+ reg |= BM_ANADIG_PLL_ENET_ENABLE_SATA;
+ writel(reg, &imx_ccm->analog_pll_enet);
+
+ return 0 ;
+}
+
unsigned int mxc_get_clock(enum mxc_clock clk)
{
switch (clk) {
case MXC_IPG_CLK:
return get_ipg_clk();
case MXC_IPG_PERCLK:
+ case MXC_I2C_CLK:
return get_ipg_per_clk();
case MXC_UART_CLK:
return get_uart_clk();
int do_mx6_showclocks(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
u32 freq;
- freq = decode_pll(PLL_SYS, CONFIG_SYS_MX6_HCLK);
+ freq = decode_pll(PLL_SYS, MXC_HCLK);
printf("PLL_SYS %8d MHz\n", freq / 1000000);
- freq = decode_pll(PLL_BUS, CONFIG_SYS_MX6_HCLK);
+ freq = decode_pll(PLL_BUS, MXC_HCLK);
printf("PLL_BUS %8d MHz\n", freq / 1000000);
- freq = decode_pll(PLL_USBOTG, CONFIG_SYS_MX6_HCLK);
+ freq = decode_pll(PLL_USBOTG, MXC_HCLK);
printf("PLL_OTG %8d MHz\n", freq / 1000000);
- freq = decode_pll(PLL_ENET, CONFIG_SYS_MX6_HCLK);
+ freq = decode_pll(PLL_ENET, MXC_HCLK);
printf("PLL_NET %8d MHz\n", freq / 1000000);
printf("\n");