diff options
Diffstat (limited to 'cpu')
| -rw-r--r-- | cpu/arm_cortexa8/mx53/generic.c | 29 |
1 files changed, 7 insertions, 22 deletions
diff --git a/cpu/arm_cortexa8/mx53/generic.c b/cpu/arm_cortexa8/mx53/generic.c index 26a7894..791c0c3 100644 --- a/cpu/arm_cortexa8/mx53/generic.c +++ b/cpu/arm_cortexa8/mx53/generic.c @@ -641,8 +641,8 @@ int clk_info(u32 clk_type) mxc_get_clock(MXC_DDR_CLK)); break; case ALL_CLK: - printf("cpu clock: %dHz\n", - mxc_get_clock(MXC_ARM_CLK)); + printf("cpu clock: %dMHz\n", + mxc_get_clock(MXC_ARM_CLK) / SZ_DEC_1M); mxc_dump_clocks(); break; default: @@ -702,6 +702,8 @@ u32 calc_per_cbcdr_val(u32 per_clk, u32 cbcmr) #define CHANGE_PLL_SETTINGS(base, pd, mfi, mfn, mfd) \ { \ + writel(0x1232, base + PLL_DP_CTL); \ + writel(0x2, base + PLL_DP_CONFIG); \ writel(((pd - 1) << 0) | (mfi << 4), \ base + PLL_DP_OP); \ writel(mfn, base + PLL_DP_MFN); \ @@ -710,6 +712,9 @@ u32 calc_per_cbcdr_val(u32 per_clk, u32 cbcmr) base + PLL_DP_HFS_OP); \ writel(mfn, base + PLL_DP_HFS_MFN); \ writel(mfd - 1, base + PLL_DP_HFS_MFD); \ + writel(0x1232, base + PLL_DP_CTL); \ + while (!readl(base + PLL_DP_CTL) & 0x1) \ + ; \ } int config_pll_clk(enum pll_clocks pll, struct pll_param *pll_param) @@ -815,15 +820,6 @@ int config_periph_clk(u32 ref, u32 freq) u32 old_cbcmr = readl(CCM_BASE_ADDR + CLKCTL_CBCMR); u32 cbcdr = 0; - /* Set PLL3 to 400MHz */ - ret = calc_pll_params(ref, 400000000, &pll_param); - if (ret != 0) { - printf("Can't find pll parameters: %d\n", - ret); - return ret; - } - config_pll_clk(PLL3_CLK, &pll_param); - /* Switch peripheral to PLL3 */ writel(0x00015154, CCM_BASE_ADDR + CLKCTL_CBCMR); writel(0x02888945, CCM_BASE_ADDR + CLKCTL_CBCDR); @@ -850,16 +846,6 @@ int config_periph_clk(u32 ref, u32 freq) /* Make sure change is effective */ while (readl(CCM_BASE_ADDR + CLKCTL_CDHIPR) != 0) ; - - /* Switch PLL3's freq back */ - ret = calc_pll_params(ref, pll3_freq, &pll_param); - if (ret != 0) { - printf("Can't find pll parameters: %d\n", - ret); - return ret; - } - config_pll_clk(PLL3_CLK, &pll_param); - puts("\n"); } @@ -974,7 +960,6 @@ int print_cpuinfo(void) (get_board_rev() & 0xFF) >> 4, (get_board_rev() & 0xF), __get_mcu_main_clk() / 1000000); - mxc_dump_clocks(); return 0; } #endif |