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authorAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
committerAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
commitaf1a266670d040d2f4083ff309d732d648afba2a (patch)
tree2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c
parente02cda008591317b1625707ff8e115a4841aa889 (diff)
Add submodule dependency filesHEADmaster
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c')
-rw-r--r--roms/u-boot/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c261
1 files changed, 261 insertions, 0 deletions
diff --git a/roms/u-boot/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c b/roms/u-boot/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c
new file mode 100644
index 000000000..63d34e1ec
--- /dev/null
+++ b/roms/u-boot/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c
@@ -0,0 +1,261 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2015 Freescale Semiconductor, Inc.
+ * Copyright 2019 NXP.
+ */
+
+#include <common.h>
+#include <clock_legacy.h>
+#include <cpu_func.h>
+#include <asm/global_data.h>
+#include <linux/compiler.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/soc.h>
+#include <fsl_ifc.h>
+#include "cpu.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifndef CONFIG_SYS_FSL_NUM_CC_PLLS
+#define CONFIG_SYS_FSL_NUM_CC_PLLS 2
+#endif
+
+void get_sys_info(struct sys_info *sys_info)
+{
+ struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
+/* rcw_tmp is needed to get FMAN clock, or to get cluster group A
+ * mux 2 clock for LS1043A/LS1046A.
+ */
+#if defined(CONFIG_SYS_DPAA_FMAN) || \
+ defined(CONFIG_TARGET_LS1046ARDB) || \
+ defined(CONFIG_TARGET_LS1043ARDB)
+ u32 rcw_tmp;
+#endif
+ struct ccsr_clk *clk = (void *)(CONFIG_SYS_FSL_CLK_ADDR);
+ unsigned int cpu;
+ const u8 core_cplx_pll[8] = {
+ [0] = 0, /* CC1 PPL / 1 */
+ [1] = 0, /* CC1 PPL / 2 */
+ [4] = 1, /* CC2 PPL / 1 */
+ [5] = 1, /* CC2 PPL / 2 */
+ };
+
+ const u8 core_cplx_pll_div[8] = {
+ [0] = 1, /* CC1 PPL / 1 */
+ [1] = 2, /* CC1 PPL / 2 */
+ [4] = 1, /* CC2 PPL / 1 */
+ [5] = 2, /* CC2 PPL / 2 */
+ };
+
+ 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;
+ unsigned long cluster_clk;
+
+ sys_info->freq_systembus = sysclk;
+#ifndef CONFIG_CLUSTER_CLK_FREQ
+#define CONFIG_CLUSTER_CLK_FREQ CONFIG_SYS_CLK_FREQ
+#endif
+ cluster_clk = CONFIG_CLUSTER_CLK_FREQ;
+
+#ifdef CONFIG_DDR_CLK_FREQ
+ sys_info->freq_ddrbus = CONFIG_DDR_CLK_FREQ;
+#else
+ sys_info->freq_ddrbus = sysclk;
+#endif
+
+ /* The freq_systembus is used to record frequency of platform PLL */
+ sys_info->freq_systembus *= (gur_in32(&gur->rcwsr[0]) >>
+ FSL_CHASSIS2_RCWSR0_SYS_PLL_RAT_SHIFT) &
+ FSL_CHASSIS2_RCWSR0_SYS_PLL_RAT_MASK;
+
+#ifdef CONFIG_ARCH_LS1012A
+ sys_info->freq_ddrbus = 2 * sys_info->freq_systembus;
+#else
+ sys_info->freq_ddrbus *= (gur_in32(&gur->rcwsr[0]) >>
+ FSL_CHASSIS2_RCWSR0_MEM_PLL_RAT_SHIFT) &
+ FSL_CHASSIS2_RCWSR0_MEM_PLL_RAT_MASK;
+#endif
+
+ for (i = 0; i < CONFIG_SYS_FSL_NUM_CC_PLLS; i++) {
+ ratio[i] = (in_be32(&clk->pllcgsr[i].pllcngsr) >> 1) & 0xff;
+ if (ratio[i] > 4)
+ freq_c_pll[i] = cluster_clk * ratio[i];
+ else
+ freq_c_pll[i] = sys_info->freq_systembus * ratio[i];
+ }
+
+ for_each_cpu(i, cpu, cpu_numcores(), cpu_mask()) {
+ cluster = fsl_qoriq_core_to_cluster(cpu);
+ u32 c_pll_sel = (in_be32(&clk->clkcsr[cluster].clkcncsr) >> 27)
+ & 0xf;
+ u32 cplx_pll = core_cplx_pll[c_pll_sel];
+
+ sys_info->freq_processor[cpu] =
+ freq_c_pll[cplx_pll] / core_cplx_pll_div[c_pll_sel];
+ }
+
+#define HWA_CGA_M1_CLK_SEL 0xe0000000
+#define HWA_CGA_M1_CLK_SHIFT 29
+#ifdef CONFIG_SYS_DPAA_FMAN
+ rcw_tmp = in_be32(&gur->rcwsr[7]);
+ switch ((rcw_tmp & HWA_CGA_M1_CLK_SEL) >> HWA_CGA_M1_CLK_SHIFT) {
+ case 2:
+ sys_info->freq_fman[0] = freq_c_pll[0] / 2;
+ break;
+ case 3:
+ sys_info->freq_fman[0] = freq_c_pll[0] / 3;
+ break;
+ case 4:
+ sys_info->freq_fman[0] = freq_c_pll[0] / 4;
+ break;
+ case 5:
+ sys_info->freq_fman[0] = sys_info->freq_systembus;
+ break;
+ case 6:
+ sys_info->freq_fman[0] = freq_c_pll[1] / 2;
+ break;
+ case 7:
+ sys_info->freq_fman[0] = freq_c_pll[1] / 3;
+ break;
+ default:
+ printf("Error: Unknown FMan1 clock select!\n");
+ break;
+ }
+#endif
+
+#define HWA_CGA_M2_CLK_SEL 0x00000007
+#define HWA_CGA_M2_CLK_SHIFT 0
+#if defined(CONFIG_TARGET_LS1046ARDB) || defined(CONFIG_TARGET_LS1043ARDB)
+ rcw_tmp = in_be32(&gur->rcwsr[15]);
+ 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;
+#if defined(CONFIG_TARGET_LS1046ARDB)
+ case 2:
+ sys_info->freq_cga_m2 = freq_c_pll[1] / 2;
+ break;
+#endif
+ case 3:
+ sys_info->freq_cga_m2 = freq_c_pll[1] / 3;
+ break;
+#if defined(CONFIG_TARGET_LS1046ARDB)
+ case 6:
+ sys_info->freq_cga_m2 = freq_c_pll[0] / 2;
+ break;
+#endif
+ default:
+ printf("Error: Unknown cluster group A mux 2 clock select!\n");
+ break;
+ }
+#endif
+
+#if defined(CONFIG_FSL_IFC)
+ sys_info->freq_localbus = sys_info->freq_systembus /
+ CONFIG_SYS_FSL_IFC_CLK_DIV;
+#endif
+#ifdef CONFIG_SYS_DPAA_QBMAN
+ sys_info->freq_qman = (sys_info->freq_systembus /
+ CONFIG_SYS_FSL_PCLK_DIV) /
+ CONFIG_SYS_FSL_QMAN_CLK_DIV;
+#endif
+}
+
+#ifdef CONFIG_SYS_DPAA_QBMAN
+unsigned long get_qman_freq(void)
+{
+ struct sys_info sys_info;
+
+ get_sys_info(&sys_info);
+
+ return sys_info.freq_qman;
+}
+#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_FSL_ESDHC
+#if defined(CONFIG_ARCH_LS1012A)
+ clock = sys_info.freq_systembus;
+#elif defined(CONFIG_ARCH_LS1043A) || defined(CONFIG_ARCH_LS1046A)
+ clock = sys_info.freq_cga_m2;
+#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;
+}
+
+ulong get_ddr_freq(ulong dummy)
+{
+ if (!gd->mem_clk)
+ get_clocks();
+
+ return gd->mem_clk;
+}
+
+int get_serial_clock(void)
+{
+ return get_bus_freq(0) / CONFIG_SYS_FSL_DUART_CLK_DIV;
+}
+
+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;
+}
+
+#ifdef CONFIG_FSL_LPUART
+int get_uart_freq(ulong dummy)
+{
+ return get_bus_freq(0) / CONFIG_SYS_FSL_LPUART_CLK_DIV;
+}
+#endif
+
+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);
+#ifdef CONFIG_FSL_LPUART
+ case MXC_UART_CLK:
+ return get_uart_freq(0);
+#endif
+ default:
+ printf("Unsupported clock\n");
+ }
+ return 0;
+}