diff options
Diffstat (limited to 'arch/arm/cpu/armv7/mx6')
| -rw-r--r-- | arch/arm/cpu/armv7/mx6/clock.c | 52 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/mx6/soc.c | 11 |
2 files changed, 59 insertions, 4 deletions
diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c index a50db70b19..3c0d908d17 100644 --- a/arch/arm/cpu/armv7/mx6/clock.c +++ b/arch/arm/cpu/armv7/mx6/clock.c @@ -37,6 +37,20 @@ enum pll_clocks { struct mxc_ccm_reg *imx_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; +#ifdef CONFIG_MXC_OCOTP +void enable_ocotp_clk(unsigned char enable) +{ + u32 reg; + + reg = __raw_readl(&imx_ccm->CCGR2); + if (enable) + reg |= MXC_CCM_CCGR2_OCOTP_CTRL_MASK; + else + reg &= ~MXC_CCM_CCGR2_OCOTP_CTRL_MASK; + __raw_writel(reg, &imx_ccm->CCGR2); +} +#endif + void enable_usboh3_clk(unsigned char enable) { u32 reg; @@ -186,12 +200,16 @@ static u32 get_ipg_per_clk(void) static u32 get_uart_clk(void) { u32 reg, uart_podf; - + u32 freq = PLL3_80M; reg = __raw_readl(&imx_ccm->cscdr1); +#ifdef CONFIG_MX6SL + if (reg & MXC_CCM_CSCDR1_UART_CLK_SEL) + freq = MXC_HCLK; +#endif reg &= MXC_CCM_CSCDR1_UART_CLK_PODF_MASK; uart_podf = reg >> MXC_CCM_CSCDR1_UART_CLK_PODF_OFFSET; - return PLL3_80M / (uart_podf + 1); + return freq / (uart_podf + 1); } static u32 get_cspi_clk(void) @@ -252,6 +270,35 @@ static u32 get_emi_slow_clk(void) return root_freq / (emi_slow_pof + 1); } +#ifdef CONFIG_MX6SL +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 = PLL2_PFD2_FREQ; + break; + case 2: + freq = PLL2_PFD0_FREQ; + break; + case 3: + freq = PLL2_PFD2_DIV_FREQ; + } + + return freq / (podf + 1); + +} +#else static u32 get_mmdc_ch0_clk(void) { u32 cbcdr = __raw_readl(&imx_ccm->cbcdr); @@ -260,6 +307,7 @@ static u32 get_mmdc_ch0_clk(void) return get_periph_clk() / (mmdc_ch0_podf + 1); } +#endif static u32 get_usdhc_clk(u32 port) { diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c index 2ea8ca3bd3..fc436fbee7 100644 --- a/arch/arm/cpu/armv7/mx6/soc.c +++ b/arch/arm/cpu/armv7/mx6/soc.c @@ -30,6 +30,7 @@ #include <asm/arch/clock.h> #include <asm/arch/sys_proto.h> #include <asm/imx-common/boot_mode.h> +#include <asm/imx-common/dma.h> #include <stdbool.h> struct scu_regs { @@ -151,6 +152,12 @@ int arch_cpu_init(void) set_vddsoc(1200); /* Set VDDSOC to 1.2V */ imx_set_wdog_powerdown(false); /* Disable PDE bit of WMCR register */ + +#ifdef CONFIG_APBH_DMA + /* Start APBH DMA */ + mxs_dma_init(); +#endif + return 0; } @@ -165,8 +172,8 @@ void enable_caches(void) #if defined(CONFIG_FEC_MXC) void imx_get_mac_from_fuse(int dev_id, unsigned char *mac) { - struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE; - struct fuse_bank *bank = &iim->bank[4]; + struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR; + struct fuse_bank *bank = &ocotp->bank[4]; struct fuse_bank4_regs *fuse = (struct fuse_bank4_regs *)bank->fuse_regs; |