diff options
Diffstat (limited to 'arch/arm/cpu/armv8/fsl-lsch3/speed.c')
| -rw-r--r-- | arch/arm/cpu/armv8/fsl-lsch3/speed.c | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/arch/arm/cpu/armv8/fsl-lsch3/speed.c b/arch/arm/cpu/armv8/fsl-lsch3/speed.c deleted file mode 100644 index d9f137cc2d..0000000000 --- a/arch/arm/cpu/armv8/fsl-lsch3/speed.c +++ /dev/null @@ -1,189 +0,0 @@ -/* - * Copyright 2014, Freescale Semiconductor, Inc. - * - * SPDX-License-Identifier: GPL-2.0+ - * - * Derived from arch/power/cpu/mpc85xx/speed.c - */ - -#include <common.h> -#include <linux/compiler.h> -#include <fsl_ifc.h> -#include <asm/processor.h> -#include <asm/io.h> -#include <asm/arch-fsl-lsch3/immap_lsch3.h> -#include <asm/arch/clock.h> -#include "cpu.h" - -DECLARE_GLOBAL_DATA_PTR; - -#ifndef CONFIG_SYS_FSL_NUM_CC_PLLS -#define CONFIG_SYS_FSL_NUM_CC_PLLS 6 -#endif - - -void get_sys_info(struct sys_info *sys_info) -{ - struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR); -#ifdef CONFIG_FSL_IFC - struct fsl_ifc ifc_regs = {(void *)CONFIG_SYS_IFC_ADDR, (void *)NULL}; - u32 ccr; -#endif - struct ccsr_clk_cluster_group __iomem *clk_grp[2] = { - (void *)(CONFIG_SYS_FSL_CH3_CLK_GRPA_ADDR), - (void *)(CONFIG_SYS_FSL_CH3_CLK_GRPB_ADDR) - }; - struct ccsr_clk_ctrl __iomem *clk_ctrl = - (void *)(CONFIG_SYS_FSL_CH3_CLK_CTRL_ADDR); - unsigned int cpu; - const u8 core_cplx_pll[16] = { - [0] = 0, /* CC1 PPL / 1 */ - [1] = 0, /* CC1 PPL / 2 */ - [2] = 0, /* CC1 PPL / 4 */ - [4] = 1, /* CC2 PPL / 1 */ - [5] = 1, /* CC2 PPL / 2 */ - [6] = 1, /* CC2 PPL / 4 */ - [8] = 2, /* CC3 PPL / 1 */ - [9] = 2, /* CC3 PPL / 2 */ - [10] = 2, /* CC3 PPL / 4 */ - [12] = 3, /* CC4 PPL / 1 */ - [13] = 3, /* CC4 PPL / 2 */ - [14] = 3, /* CC4 PPL / 4 */ - }; - - const u8 core_cplx_pll_div[16] = { - [0] = 1, /* CC1 PPL / 1 */ - [1] = 2, /* CC1 PPL / 2 */ - [2] = 4, /* CC1 PPL / 4 */ - [4] = 1, /* CC2 PPL / 1 */ - [5] = 2, /* CC2 PPL / 2 */ - [6] = 4, /* CC2 PPL / 4 */ - [8] = 1, /* CC3 PPL / 1 */ - [9] = 2, /* CC3 PPL / 2 */ - [10] = 4, /* CC3 PPL / 4 */ - [12] = 1, /* CC4 PPL / 1 */ - [13] = 2, /* CC4 PPL / 2 */ - [14] = 4, /* CC4 PPL / 4 */ - }; - - uint i, cluster; - uint freq_c_pll[CONFIG_SYS_FSL_NUM_CC_PLLS]; - uint ratio[CONFIG_SYS_FSL_NUM_CC_PLLS]; - unsigned long sysclk = CONFIG_SYS_CLK_FREQ; - int cc_group[12] = CONFIG_SYS_FSL_CLUSTER_CLOCKS; - u32 c_pll_sel, cplx_pll; - void *offset; - - sys_info->freq_systembus = sysclk; -#ifdef CONFIG_DDR_CLK_FREQ - sys_info->freq_ddrbus = CONFIG_DDR_CLK_FREQ; - sys_info->freq_ddrbus2 = CONFIG_DDR_CLK_FREQ; -#else - sys_info->freq_ddrbus = sysclk; - sys_info->freq_ddrbus2 = sysclk; -#endif - - sys_info->freq_systembus *= (in_le32(&gur->rcwsr[0]) >> - FSL_CHASSIS3_RCWSR0_SYS_PLL_RAT_SHIFT) & - FSL_CHASSIS3_RCWSR0_SYS_PLL_RAT_MASK; - /* Platform clock is half of platform PLL */ - sys_info->freq_systembus /= 2; - sys_info->freq_ddrbus *= (in_le32(&gur->rcwsr[0]) >> - FSL_CHASSIS3_RCWSR0_MEM_PLL_RAT_SHIFT) & - FSL_CHASSIS3_RCWSR0_MEM_PLL_RAT_MASK; - sys_info->freq_ddrbus2 *= (in_le32(&gur->rcwsr[0]) >> - FSL_CHASSIS3_RCWSR0_MEM2_PLL_RAT_SHIFT) & - FSL_CHASSIS3_RCWSR0_MEM2_PLL_RAT_MASK; - - for (i = 0; i < CONFIG_SYS_FSL_NUM_CC_PLLS; i++) { - /* - * fixme: prefer to combine the following into one line, but - * cannot pass compiling without warning about in_le32. - */ - offset = (void *)((size_t)clk_grp[i/3] + - offsetof(struct ccsr_clk_cluster_group, - pllngsr[i%3].gsr)); - ratio[i] = (in_le32(offset) >> 1) & 0x3f; - freq_c_pll[i] = sysclk * ratio[i]; - } - - for_each_cpu(i, cpu, cpu_numcores(), cpu_mask()) { - cluster = fsl_qoriq_core_to_cluster(cpu); - c_pll_sel = (in_le32(&clk_ctrl->clkcncsr[cluster].csr) >> 27) - & 0xf; - cplx_pll = core_cplx_pll[c_pll_sel]; - cplx_pll += cc_group[cluster] - 1; - sys_info->freq_processor[cpu] = - freq_c_pll[cplx_pll] / core_cplx_pll_div[c_pll_sel]; - } - -#if defined(CONFIG_FSL_IFC) - ccr = in_le32(&ifc_regs.gregs->ifc_ccr); - ccr = ((ccr & IFC_CCR_CLK_DIV_MASK) >> IFC_CCR_CLK_DIV_SHIFT) + 1; - - sys_info->freq_localbus = sys_info->freq_systembus / ccr; -#endif -} - - -int get_clocks(void) -{ - struct sys_info sys_info; - get_sys_info(&sys_info); - gd->cpu_clk = sys_info.freq_processor[0]; - gd->bus_clk = sys_info.freq_systembus; - gd->mem_clk = sys_info.freq_ddrbus; - gd->arch.mem2_clk = sys_info.freq_ddrbus2; -#if defined(CONFIG_FSL_ESDHC) - gd->arch.sdhc_clk = gd->bus_clk / 2; -#endif /* defined(CONFIG_FSL_ESDHC) */ - - if (gd->cpu_clk != 0) - return 0; - else - return 1; -} - -/******************************************** - * get_bus_freq - * return system bus freq in Hz - *********************************************/ -ulong get_bus_freq(ulong dummy) -{ - if (!gd->bus_clk) - get_clocks(); - - return gd->bus_clk; -} - -/******************************************** - * get_ddr_freq - * return ddr bus freq in Hz - *********************************************/ -ulong get_ddr_freq(ulong ctrl_num) -{ - if (!gd->mem_clk) - get_clocks(); - - /* - * DDR controller 0 & 1 are on memory complex 0 - * DDR controler 2 is on memory complext 1 - */ - if (ctrl_num >= 2) - return gd->arch.mem2_clk; - - return gd->mem_clk; -} - -unsigned int mxc_get_clock(enum mxc_clock clk) -{ - switch (clk) { - case MXC_I2C_CLK: - return get_bus_freq(0) / 2; - case MXC_DSPI_CLK: - return get_bus_freq(0) / 2; - default: - printf("Unsupported clock\n"); - } - return 0; -} |