imx:mx6ul add clock support

[u-boot] / arch / arm / cpu / armv7 / mx6 / clock.c

diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c
index 3e9447272df729f252b88eaea77b5e7434d5bd04..9cf4eece137ee0657aecc5284ddd6f4bb198f403 100644 (file)
--- a/arch/arm/cpu/armv7/mx6/clock.c
+++ b/arch/arm/cpu/armv7/mx6/clock.c
@@ -81,19 +81,32 @@ void enable_usboh3_clk(unsigned char enable)
 #if defined(CONFIG_FEC_MXC) && !defined(CONFIG_MX6SX)
 void enable_enet_clk(unsigned char enable)
 {
-       u32 mask = MXC_CCM_CCGR1_ENET_CLK_ENABLE_MASK;
+       u32 mask, *addr;
+
+       if (is_cpu_type(MXC_CPU_MX6UL)) {
+               mask = MXC_CCM_CCGR3_ENET_MASK;
+               addr = &imx_ccm->CCGR3;
+       } else {
+               mask = MXC_CCM_CCGR1_ENET_MASK;
+               addr = &imx_ccm->CCGR1;
+       }
 
        if (enable)
-               setbits_le32(&imx_ccm->CCGR1, mask);
+               setbits_le32(addr, mask);
        else
-               clrbits_le32(&imx_ccm->CCGR1, mask);
+               clrbits_le32(addr, mask);
 }
 #endif
 
 #ifdef CONFIG_MXC_UART
 void enable_uart_clk(unsigned char enable)
 {
-       u32 mask = MXC_CCM_CCGR5_UART_MASK | MXC_CCM_CCGR5_UART_SERIAL_MASK;
+       u32 mask;
+
+       if (is_cpu_type(MXC_CPU_MX6UL))
+               mask = MXC_CCM_CCGR5_UART_MASK;
+       else
+               mask = MXC_CCM_CCGR5_UART_MASK | MXC_CCM_CCGR5_UART_SERIAL_MASK;
 
        if (enable)
                setbits_le32(&imx_ccm->CCGR5, mask);
@@ -141,7 +154,7 @@ int enable_i2c_clk(unsigned char enable, unsigned i2c_num)
                        reg &= ~mask;
                __raw_writel(reg, &imx_ccm->CCGR2);
        } else {
-               if (is_cpu_type(MXC_CPU_MX6SX)) {
+               if (is_cpu_type(MXC_CPU_MX6SX) || is_cpu_type(MXC_CPU_MX6UL)) {
                        mask = MXC_CCM_CCGR6_I2C4_MASK;
                        addr = &imx_ccm->CCGR6;
                } else {
@@ -214,9 +227,11 @@ static u32 mxc_get_pll_pfd(enum pll_clocks pll, int pfd_num)
 
        switch (pll) {
        case PLL_BUS:
-               if (pfd_num == 3) {
-                       /* No PFD3 on PPL2 */
-                       return 0;
+               if (!is_cpu_type(MXC_CPU_MX6UL)) {
+                       if (pfd_num == 3) {
+                               /* No PFD3 on PPL2 */
+                               return 0;
+                       }
                }
                div = __raw_readl(&imx_ccm->analog_pfd_528);
                freq = (u64)decode_pll(PLL_BUS, MXC_HCLK);
@@ -248,10 +263,12 @@ static u32 get_mcu_main_clk(void)
 
 u32 get_periph_clk(void)
 {
-       u32 reg, freq = 0;
+       u32 reg, div = 0, freq = 0;
 
        reg = __raw_readl(&imx_ccm->cbcdr);
        if (reg & MXC_CCM_CBCDR_PERIPH_CLK_SEL) {
+               div = (reg & MXC_CCM_CBCDR_PERIPH_CLK2_PODF_MASK) >>
+                      MXC_CCM_CBCDR_PERIPH_CLK2_PODF_OFFSET;
                reg = __raw_readl(&imx_ccm->cbcmr);
                reg &= MXC_CCM_CBCMR_PERIPH_CLK2_SEL_MASK;
                reg >>= MXC_CCM_CBCMR_PERIPH_CLK2_SEL_OFFSET;
@@ -291,7 +308,7 @@ u32 get_periph_clk(void)
                }
        }
 
-       return freq;
+       return freq / (div + 1);
 }
 
 static u32 get_ipg_clk(void)
@@ -311,7 +328,7 @@ static u32 get_ipg_per_clk(void)
 
        reg = __raw_readl(&imx_ccm->cscmr1);
        if (is_cpu_type(MXC_CPU_MX6SL) || is_cpu_type(MXC_CPU_MX6SX) ||
-           is_mx6dqp()) {
+           is_mx6dqp() || is_cpu_type(MXC_CPU_MX6UL)) {
                if (reg & MXC_CCM_CSCMR1_PER_CLK_SEL_MASK)
                        return MXC_HCLK; /* OSC 24Mhz */
        }
@@ -328,7 +345,7 @@ static u32 get_uart_clk(void)
        reg = __raw_readl(&imx_ccm->cscdr1);
 
        if (is_cpu_type(MXC_CPU_MX6SL) || is_cpu_type(MXC_CPU_MX6SX) ||
-           is_mx6dqp()) {
+           is_mx6dqp() || is_cpu_type(MXC_CPU_MX6UL)) {
                if (reg & MXC_CCM_CSCDR1_UART_CLK_SEL)
                        freq = MXC_HCLK;
        }
@@ -347,7 +364,8 @@ static u32 get_cspi_clk(void)
        cspi_podf = (reg & MXC_CCM_CSCDR2_ECSPI_CLK_PODF_MASK) >>
                     MXC_CCM_CSCDR2_ECSPI_CLK_PODF_OFFSET;
 
-       if (is_mx6dqp()) {
+       if (is_mx6dqp() || is_cpu_type(MXC_CPU_MX6SL) ||
+           is_cpu_type(MXC_CPU_MX6SX) || is_cpu_type(MXC_CPU_MX6UL)) {
                if (reg & MXC_CCM_CSCDR2_ECSPI_CLK_SEL_MASK)
                        return MXC_HCLK / (cspi_podf + 1);
        }
@@ -402,47 +420,60 @@ static u32 get_emi_slow_clk(void)
        return root_freq / (emi_slow_podf + 1);
 }
 
-#if (defined(CONFIG_MX6SL) || defined(CONFIG_MX6SX))
 static u32 get_mmdc_ch0_clk(void)
 {
        u32 cbcmr = __raw_readl(&imx_ccm->cbcmr);
        u32 cbcdr = __raw_readl(&imx_ccm->cbcdr);
-       u32 freq, podf;
 
-       podf = (cbcdr & MXC_CCM_CBCDR_MMDC_CH1_PODF_MASK) \
-                       >> MXC_CCM_CBCDR_MMDC_CH1_PODF_OFFSET;
-
-       switch ((cbcmr & MXC_CCM_CBCMR_PRE_PERIPH2_CLK_SEL_MASK) >>
-               MXC_CCM_CBCMR_PRE_PERIPH2_CLK_SEL_OFFSET) {
-       case 0:
-               freq = decode_pll(PLL_BUS, MXC_HCLK);
-               break;
-       case 1:
-               freq = mxc_get_pll_pfd(PLL_BUS, 2);
-               break;
-       case 2:
-               freq = mxc_get_pll_pfd(PLL_BUS, 0);
-               break;
-       case 3:
-               /* static / 2 divider */
-               freq =  mxc_get_pll_pfd(PLL_BUS, 2) / 2;
+       u32 freq, podf, per2_clk2_podf;
+
+       if (is_cpu_type(MXC_CPU_MX6SX) || is_cpu_type(MXC_CPU_MX6UL) ||
+           is_cpu_type(MXC_CPU_MX6SL)) {
+               podf = (cbcdr & MXC_CCM_CBCDR_MMDC_CH1_PODF_MASK) >>
+                       MXC_CCM_CBCDR_MMDC_CH1_PODF_OFFSET;
+               if (cbcdr & MXC_CCM_CBCDR_PERIPH2_CLK_SEL) {
+                       per2_clk2_podf = (cbcdr & MXC_CCM_CBCDR_PERIPH2_CLK2_PODF_MASK) >>
+                               MXC_CCM_CBCDR_PERIPH2_CLK2_PODF_OFFSET;
+                       if (is_cpu_type(MXC_CPU_MX6SL)) {
+                               if (cbcmr & MXC_CCM_CBCMR_PERIPH2_CLK2_SEL)
+                                       freq = MXC_HCLK;
+                               else
+                                       freq = decode_pll(PLL_USBOTG, MXC_HCLK);
+                       } else {
+                               if (cbcmr & MXC_CCM_CBCMR_PERIPH2_CLK2_SEL)
+                                       freq = decode_pll(PLL_BUS, MXC_HCLK);
+                               else
+                                       freq = decode_pll(PLL_USBOTG, MXC_HCLK);
+                       }
+               } else {
+                       per2_clk2_podf = 0;
+                       switch ((cbcmr &
+                               MXC_CCM_CBCMR_PRE_PERIPH2_CLK_SEL_MASK) >>
+                               MXC_CCM_CBCMR_PRE_PERIPH2_CLK_SEL_OFFSET) {
+                       case 0:
+                               freq = decode_pll(PLL_BUS, MXC_HCLK);
+                               break;
+                       case 1:
+                               freq = mxc_get_pll_pfd(PLL_BUS, 2);
+                               break;
+                       case 2:
+                               freq = mxc_get_pll_pfd(PLL_BUS, 0);
+                               break;
+                       case 3:
+                               /* static / 2 divider */
+                               freq =  mxc_get_pll_pfd(PLL_BUS, 2) / 2;
+                               break;
+                       }
+               }
+               return freq / (podf + 1) / (per2_clk2_podf + 1);
+       } else {
+               podf = (cbcdr & MXC_CCM_CBCDR_MMDC_CH0_PODF_MASK) >>
+                       MXC_CCM_CBCDR_MMDC_CH0_PODF_OFFSET;
+               return get_periph_clk() / (podf + 1);
        }
-
-       return freq / (podf + 1);
-
 }
-#else
-static u32 get_mmdc_ch0_clk(void)
-{
-       u32 cbcdr = __raw_readl(&imx_ccm->cbcdr);
-       u32 mmdc_ch0_podf = (cbcdr & MXC_CCM_CBCDR_MMDC_CH0_PODF_MASK) >>
-                               MXC_CCM_CBCDR_MMDC_CH0_PODF_OFFSET;
 
-       return get_periph_clk() / (mmdc_ch0_podf + 1);
-}
-#endif
-
-#ifdef CONFIG_MX6SX
+#ifdef CONFIG_FSL_QSPI
 /* qspi_num can be from 0 - 1 */
 void enable_qspi_clk(int qspi_num)
 {
@@ -603,6 +634,7 @@ u32 imx_get_fecclk(void)
        return mxc_get_clock(MXC_IPG_CLK);
 }
 
+#if defined(CONFIG_CMD_SATA) || defined(CONFIG_PCIE_IMX)
 static int enable_enet_pll(uint32_t en)
 {
        struct mxc_ccm_reg *const imx_ccm
@@ -627,8 +659,9 @@ static int enable_enet_pll(uint32_t en)
        writel(reg, &imx_ccm->analog_pll_enet);
        return 0;
 }
+#endif
 
-#ifndef CONFIG_MX6SX
+#ifdef CONFIG_CMD_SATA
 static void ungate_sata_clock(void)
 {
        struct mxc_ccm_reg *const imx_ccm =
@@ -637,18 +670,7 @@ static void ungate_sata_clock(void)
        /* Enable SATA clock. */
        setbits_le32(&imx_ccm->CCGR5, MXC_CCM_CCGR5_SATA_MASK);
 }
-#endif
-
-static void ungate_pcie_clock(void)
-{
-       struct mxc_ccm_reg *const imx_ccm =
-               (struct mxc_ccm_reg *)CCM_BASE_ADDR;
 
-       /* Enable PCIe clock. */
-       setbits_le32(&imx_ccm->CCGR4, MXC_CCM_CCGR4_PCIE_MASK);
-}
-
-#ifndef CONFIG_MX6SX
 int enable_sata_clock(void)
 {
        ungate_sata_clock();
@@ -664,6 +686,16 @@ void disable_sata_clock(void)
 }
 #endif
 
+#ifdef CONFIG_PCIE_IMX
+static void ungate_pcie_clock(void)
+{
+       struct mxc_ccm_reg *const imx_ccm =
+               (struct mxc_ccm_reg *)CCM_BASE_ADDR;
+
+       /* Enable PCIe clock. */
+       setbits_le32(&imx_ccm->CCGR4, MXC_CCM_CCGR4_PCIE_MASK);
+}
+
 int enable_pcie_clock(void)
 {
        struct anatop_regs *anatop_regs =
@@ -703,7 +735,7 @@ int enable_pcie_clock(void)
        clrbits_le32(&ccm_regs->cbcmr, MXC_CCM_CBCMR_PCIE_AXI_CLK_SEL);
 
        /* Party time! Ungate the clock to the PCIe. */
-#ifndef CONFIG_MX6SX
+#ifdef CONFIG_CMD_SATA
        ungate_sata_clock();
 #endif
        ungate_pcie_clock();
@@ -711,6 +743,7 @@ int enable_pcie_clock(void)
        return enable_enet_pll(BM_ANADIG_PLL_ENET_ENABLE_SATA |
                               BM_ANADIG_PLL_ENET_ENABLE_PCIE);
 }
+#endif
 
 #ifdef CONFIG_SECURE_BOOT
 void hab_caam_clock_enable(unsigned char enable)