mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 10:48:51 +00:00
401d1c4f5d
Move this out of the common header and include it only where needed. In a number of cases this requires adding "struct udevice;" to avoid adding another large header or in other cases replacing / adding missing header files that had been pulled in, very indirectly. Finally, we have a few cases where we did not need to include <asm/global_data.h> at all, so remove that include. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com>
256 lines
6.4 KiB
C
256 lines
6.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright 2014-2015, Freescale Semiconductor, Inc.
|
|
* Copyright 2019-2020 NXP
|
|
*
|
|
* Derived from arch/power/cpu/mpc85xx/speed.c
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <clock_legacy.h>
|
|
#include <cpu_func.h>
|
|
#include <asm/global_data.h>
|
|
#include <linux/compiler.h>
|
|
#include <fsl_ifc.h>
|
|
#include <asm/processor.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch-fsl-layerscape/immap_lsch3.h>
|
|
#include <asm/arch/clock.h>
|
|
#include <asm/arch/soc.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);
|
|
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;
|
|
#if defined(CONFIG_ARCH_LS1028A) || defined(CONFIG_ARCH_LS1088A)
|
|
uint rcw_tmp;
|
|
#endif
|
|
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;
|
|
#ifdef CONFIG_SYS_FSL_HAS_DP_DDR
|
|
sys_info->freq_ddrbus2 = CONFIG_DDR_CLK_FREQ;
|
|
#endif
|
|
#else
|
|
sys_info->freq_ddrbus = sysclk;
|
|
#ifdef CONFIG_SYS_FSL_HAS_DP_DDR
|
|
sys_info->freq_ddrbus2 = sysclk;
|
|
#endif
|
|
#endif
|
|
|
|
/* The freq_systembus is used to record frequency of platform PLL */
|
|
sys_info->freq_systembus *= (gur_in32(&gur->rcwsr[0]) >>
|
|
FSL_CHASSIS3_RCWSR0_SYS_PLL_RAT_SHIFT) &
|
|
FSL_CHASSIS3_RCWSR0_SYS_PLL_RAT_MASK;
|
|
sys_info->freq_ddrbus *= (gur_in32(&gur->rcwsr[0]) >>
|
|
FSL_CHASSIS3_RCWSR0_MEM_PLL_RAT_SHIFT) &
|
|
FSL_CHASSIS3_RCWSR0_MEM_PLL_RAT_MASK;
|
|
#ifdef CONFIG_SYS_FSL_HAS_DP_DDR
|
|
if (soc_has_dp_ddr()) {
|
|
sys_info->freq_ddrbus2 *= (gur_in32(&gur->rcwsr[0]) >>
|
|
FSL_CHASSIS3_RCWSR0_MEM2_PLL_RAT_SHIFT) &
|
|
FSL_CHASSIS3_RCWSR0_MEM2_PLL_RAT_MASK;
|
|
} else {
|
|
sys_info->freq_ddrbus2 = 0;
|
|
}
|
|
#endif
|
|
|
|
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)
|
|
sys_info->freq_localbus = sys_info->freq_systembus /
|
|
CONFIG_SYS_FSL_IFC_CLK_DIV;
|
|
#endif
|
|
|
|
#if defined(CONFIG_ARCH_LS1028A) || defined(CONFIG_ARCH_LS1088A)
|
|
#define HWA_CGA_M2_CLK_SEL 0x00380000
|
|
#define HWA_CGA_M2_CLK_SHIFT 19
|
|
rcw_tmp = in_le32(&gur->rcwsr[5]);
|
|
switch ((rcw_tmp & HWA_CGA_M2_CLK_SEL) >> HWA_CGA_M2_CLK_SHIFT) {
|
|
case 1:
|
|
sys_info->freq_cga_m2 = freq_c_pll[1];
|
|
break;
|
|
case 2:
|
|
sys_info->freq_cga_m2 = freq_c_pll[1] / 2;
|
|
break;
|
|
case 3:
|
|
sys_info->freq_cga_m2 = freq_c_pll[1] / 3;
|
|
break;
|
|
case 4:
|
|
sys_info->freq_cga_m2 = freq_c_pll[1] / 4;
|
|
break;
|
|
case 6:
|
|
sys_info->freq_cga_m2 = freq_c_pll[0] / 2;
|
|
break;
|
|
case 7:
|
|
sys_info->freq_cga_m2 = freq_c_pll[0] / 3;
|
|
break;
|
|
default:
|
|
printf("Error: Unknown peripheral clock select!\n");
|
|
break;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
int get_clocks(void)
|
|
{
|
|
struct sys_info sys_info;
|
|
#ifdef CONFIG_FSL_ESDHC
|
|
u32 clock = 0;
|
|
#endif
|
|
get_sys_info(&sys_info);
|
|
gd->cpu_clk = sys_info.freq_processor[0];
|
|
gd->bus_clk = sys_info.freq_systembus / CONFIG_SYS_FSL_PCLK_DIV;
|
|
gd->mem_clk = sys_info.freq_ddrbus;
|
|
#ifdef CONFIG_SYS_FSL_HAS_DP_DDR
|
|
gd->arch.mem2_clk = sys_info.freq_ddrbus2;
|
|
#endif
|
|
|
|
#ifdef CONFIG_FSL_ESDHC
|
|
#if defined(CONFIG_ARCH_LS1028A) || defined(CONFIG_ARCH_LS1088A)
|
|
clock = sys_info.freq_cga_m2;
|
|
#elif defined(CONFIG_ARCH_LX2160A) || defined(CONFIG_ARCH_LS2080A) || defined(CONFIG_ARCH_LX2162A)
|
|
clock = sys_info.freq_systembus;
|
|
#endif
|
|
gd->arch.sdhc_per_clk = clock / CONFIG_SYS_FSL_SDHC_CLK_DIV;
|
|
gd->arch.sdhc_clk = gd->bus_clk / CONFIG_SYS_FSL_SDHC_CLK_DIV;
|
|
#endif
|
|
|
|
if (gd->cpu_clk != 0)
|
|
return 0;
|
|
else
|
|
return 1;
|
|
}
|
|
|
|
/********************************************
|
|
* get_bus_freq
|
|
* return platform clock 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 controller 2 is on memory complext 1
|
|
*/
|
|
#ifdef CONFIG_SYS_FSL_HAS_DP_DDR
|
|
if (ctrl_num >= 2)
|
|
return gd->arch.mem2_clk;
|
|
#endif
|
|
|
|
return gd->mem_clk;
|
|
}
|
|
|
|
int get_i2c_freq(ulong dummy)
|
|
{
|
|
return get_bus_freq(0) / CONFIG_SYS_FSL_I2C_CLK_DIV;
|
|
}
|
|
|
|
int get_dspi_freq(ulong dummy)
|
|
{
|
|
return get_bus_freq(0) / CONFIG_SYS_FSL_DSPI_CLK_DIV;
|
|
}
|
|
|
|
int get_serial_clock(void)
|
|
{
|
|
return get_bus_freq(0) / CONFIG_SYS_FSL_DUART_CLK_DIV;
|
|
}
|
|
|
|
unsigned int mxc_get_clock(enum mxc_clock clk)
|
|
{
|
|
switch (clk) {
|
|
case MXC_I2C_CLK:
|
|
return get_i2c_freq(0);
|
|
case MXC_DSPI_CLK:
|
|
return get_dspi_freq(0);
|
|
default:
|
|
printf("Unsupported clock\n");
|
|
}
|
|
return 0;
|
|
}
|