diff options
Diffstat (limited to 'arch/arm/cpu')
| -rw-r--r-- | arch/arm/cpu/armv7/mx6/clock.c | 30 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/mx6/soc.c | 30 |
2 files changed, 58 insertions, 2 deletions
diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c index 7dd83ec..abd9d61 100644 --- a/arch/arm/cpu/armv7/mx6/clock.c +++ b/arch/arm/cpu/armv7/mx6/clock.c @@ -71,6 +71,24 @@ int enable_i2c_clk(unsigned char enable, unsigned i2c_num) } #endif +/* spi_num can be from 0 - SPI_MAX_NUM */ +int enable_spi_clk(unsigned char enable, unsigned spi_num) +{ + u32 reg; + u32 mask; + + if (spi_num > SPI_MAX_NUM) + return -EINVAL; + + mask = MXC_CCM_CCGR_CG_MASK << (spi_num << 1); + reg = __raw_readl(&imx_ccm->CCGR1); + if (enable) + reg |= mask; + else + reg &= ~mask; + __raw_writel(reg, &imx_ccm->CCGR1); + return 0; +} static u32 decode_pll(enum pll_clocks pll, u32 infreq) { u32 div; @@ -214,7 +232,7 @@ static u32 get_uart_clk(void) u32 reg, uart_podf; u32 freq = decode_pll(PLL_USBOTG, MXC_HCLK) / 6; /* static divider */ reg = __raw_readl(&imx_ccm->cscdr1); -#ifdef CONFIG_MX6SL +#if (defined(CONFIG_MX6SL) || defined(CONFIG_MX6SX)) if (reg & MXC_CCM_CSCDR1_UART_CLK_SEL) freq = MXC_HCLK; #endif @@ -282,7 +300,7 @@ static u32 get_emi_slow_clk(void) return root_freq / (emi_slow_podf + 1); } -#ifdef CONFIG_MX6SL +#if (defined(CONFIG_MX6SL) || defined(CONFIG_MX6SX)) static u32 get_mmdc_ch0_clk(void) { u32 cbcmr = __raw_readl(&imx_ccm->cbcmr); @@ -437,6 +455,7 @@ static int enable_enet_pll(uint32_t en) return 0; } +#ifndef CONFIG_MX6SX static void ungate_sata_clock(void) { struct mxc_ccm_reg *const imx_ccm = @@ -445,6 +464,7 @@ 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) { @@ -455,11 +475,13 @@ static void ungate_pcie_clock(void) setbits_le32(&imx_ccm->CCGR4, MXC_CCM_CCGR4_PCIE_MASK); } +#ifndef CONFIG_MX6SX int enable_sata_clock(void) { ungate_sata_clock(); return enable_enet_pll(BM_ANADIG_PLL_ENET_ENABLE_SATA); } +#endif int enable_pcie_clock(void) { @@ -491,7 +513,9 @@ 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 ungate_sata_clock(); +#endif ungate_pcie_clock(); return enable_enet_pll(BM_ANADIG_PLL_ENET_ENABLE_SATA | @@ -573,6 +597,7 @@ int do_mx6_showclocks(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) return 0; } +#ifndef CONFIG_MX6SX void enable_ipu_clock(void) { struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; @@ -581,6 +606,7 @@ void enable_ipu_clock(void) reg |= MXC_CCM_CCGR3_IPU1_IPU_MASK; writel(reg, &mxc_ccm->CCGR3); } +#endif /***************************************************/ U_BOOT_CMD( diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c index f20bdeb..f2dee76 100644 --- a/arch/arm/cpu/armv7/mx6/soc.c +++ b/arch/arm/cpu/armv7/mx6/soc.c @@ -79,9 +79,15 @@ u32 __weak get_board_rev(void) void init_aips(void) { struct aipstz_regs *aips1, *aips2; +#ifdef CONFIG_MX6SX + struct aipstz_regs *aips3; +#endif aips1 = (struct aipstz_regs *)AIPS1_BASE_ADDR; aips2 = (struct aipstz_regs *)AIPS2_BASE_ADDR; +#ifdef CONFIG_MX6SX + aips3 = (struct aipstz_regs *)AIPS3_BASE_ADDR; +#endif /* * Set all MPROTx to be non-bufferable, trusted for R/W, @@ -107,6 +113,26 @@ void init_aips(void) writel(0x00000000, &aips2->opacr2); writel(0x00000000, &aips2->opacr3); writel(0x00000000, &aips2->opacr4); + +#ifdef CONFIG_MX6SX + /* + * Set all MPROTx to be non-bufferable, trusted for R/W, + * not forced to user-mode. + */ + writel(0x77777777, &aips3->mprot0); + writel(0x77777777, &aips3->mprot1); + + /* + * Set all OPACRx to be non-bufferable, not require + * supervisor privilege level for access,allow for + * write access and untrusted master access. + */ + writel(0x00000000, &aips3->opacr0); + writel(0x00000000, &aips3->opacr1); + writel(0x00000000, &aips3->opacr2); + writel(0x00000000, &aips3->opacr3); + writel(0x00000000, &aips3->opacr4); +#endif } static void clear_ldo_ramp(void) @@ -311,6 +337,10 @@ void s_init(void) u32 mask480; u32 mask528; + + if (is_cpu_type(MXC_CPU_MX6SX)) + return; + /* Due to hardware limitation, on MX6Q we need to gate/ungate all PFDs * to make sure PFD is working right, otherwise, PFDs may * not output clock after reset, MX6DL and MX6SL have added 396M pfd |