[U-Boot] [PATCH] powerpc/mpc85xx: Add DSP side awareness for Freescale Heterogeneous SoCs
The code provides framework for heterogeneous multicore chips based on StarCore and Power Architecture which are chasis-2 compliant, like B4860 and B4420
It will make u-boot recognize all non-ppc cores and peripherals like SC3900/DSP CPUs, MAPLE, CPRI and print their configuration in u-boot logs. Example boot logs of B4860QDS:
U-Boot 2015.01-00232-geef6e36-dirty (Jan 19 2015 - 11:58:45)
CPU0: B4860E, Version: 2.2, (0x86880022) Core: e6500, Version: 2.0, (0x80400120) Clock Configuration: CPU0:1600 MHz, CPU1:1600 MHz, CPU2:1600 MHz, CPU3:1600 MHz, DSP CPU0:1200 MHz, DSP CPU1:1200 MHz, DSP CPU2:1200 MHz, DSP CPU3:1200 MHz, DSP CPU4:1200 MHz, DSP CPU5:1200 MHz, CCB:666.667 MHz, DDR:933.333 MHz (1866.667 MT/s data rate) (Asynchronous), IFC:166.667 MHz CPRI:600 MHz MAPLE:600 MHz, MAPLE-ULB:800 MHz, MAPLE-eTVPE:1000 MHz FMAN1: 666.667 MHz QMAN: 333.333 MHz
Top level changes include: (1) Top level CONFIG to identify HETEROGENUOUS clusters (2) CONFIGS for SC3900/DSP components (3) Global structures like "cpu_type" and "MPC85xx_SYS_INFO" updated for dsp cores and other components (3) APIs to get DSP num cores and their Mask like: cpu_dsp_mask, cpu_num_dspcores etc same as that of PowerPC (5) Code to fetch and print SC cores and other heterogenous device's frequencies (6) README added for the same
Signed-off-by: Shaveta Leekha shaveta@freescale.com --- arch/powerpc/cpu/mpc85xx/cpu.c | 28 ++++++ arch/powerpc/cpu/mpc85xx/speed.c | 140 +++++++++++++++++++++++++++++ arch/powerpc/cpu/mpc8xxx/cpu.c | 91 ++++++++++++++++++- arch/powerpc/include/asm/config_mpc85xx.h | 14 +++- arch/powerpc/include/asm/processor.h | 5 + doc/README.Heterogeneous-SoCs | 105 +++++++++++++++++++++ include/common.h | 2 + include/e500.h | 11 +++ 8 files changed, 393 insertions(+), 3 deletions(-) create mode 100644 doc/README.Heterogeneous-SoCs
diff --git a/arch/powerpc/cpu/mpc85xx/cpu.c b/arch/powerpc/cpu/mpc85xx/cpu.c index 3d6ec84..ef08489 100644 --- a/arch/powerpc/cpu/mpc85xx/cpu.c +++ b/arch/powerpc/cpu/mpc85xx/cpu.c @@ -73,6 +73,11 @@ int checkcpu (void) unsigned int i, core, nr_cores = cpu_numcores(); u32 mask = cpu_mask();
+#ifdef CONFIG_HETROGENOUS_CLUSTERS + unsigned int j, dsp_core, dsp_numcores = cpu_num_dspcores(); + u32 dsp_mask = cpu_dsp_mask(); +#endif + svr = get_svr(); major = SVR_MAJ(svr); minor = SVR_MIN(svr); @@ -166,6 +171,16 @@ int checkcpu (void) printf("CPU%d:%-4s MHz, ", core, strmhz(buf1, sysinfo.freq_processor[core])); } + +#ifdef CONFIG_HETROGENOUS_CLUSTERS + for_each_cpu(j, dsp_core, dsp_numcores, dsp_mask) { + if (!(j & 3)) + printf("\n "); + printf("DSP CPU%d:%-4s MHz, ", j, + strmhz(buf1, sysinfo.freq_processor_dsp[dsp_core])); + } +#endif + printf("\n CCB:%-4s MHz,", strmhz(buf1, sysinfo.freq_systembus)); printf("\n");
@@ -224,6 +239,19 @@ int checkcpu (void) printf(" QE:%-4s MHz\n", strmhz(buf1, sysinfo.freq_qe)); #endif
+#if defined(CONFIG_SYS_CPRI) + printf(" "); + printf("CPRI:%-4s MHz", strmhz(buf1, sysinfo.freq_cpri)); +#endif + +#if defined(CONFIG_SYS_MAPLE) + printf("\n "); + printf("MAPLE:%-4s MHz, ", strmhz(buf1, sysinfo.freq_maple)); + printf("MAPLE-ULB:%-4s MHz, ", strmhz(buf1, sysinfo.freq_maple_ulb)); + printf("MAPLE-eTVPE:%-4s MHz\n", + strmhz(buf1, sysinfo.freq_maple_etvpe)); +#endif + #ifdef CONFIG_SYS_DPAA_FMAN for (i = 0; i < CONFIG_SYS_NUM_FMAN; i++) { printf(" FMAN%d: %s MHz\n", i + 1, diff --git a/arch/powerpc/cpu/mpc85xx/speed.c b/arch/powerpc/cpu/mpc85xx/speed.c index 7e69873..e24b857 100644 --- a/arch/powerpc/cpu/mpc85xx/speed.c +++ b/arch/powerpc/cpu/mpc85xx/speed.c @@ -34,6 +34,10 @@ void get_sys_info(sys_info_t *sys_info) #ifdef CONFIG_FSL_CORENET volatile ccsr_clk_t *clk = (void *)(CONFIG_SYS_FSL_CORENET_CLK_ADDR); unsigned int cpu; +#ifdef CONFIG_HETROGENOUS_CLUSTERS + unsigned int dsp_cpu; + uint rcw_tmp1, rcw_tmp2; +#endif #ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2 int cc_group[12] = CONFIG_SYS_FSL_CLUSTER_CLOCKS; #endif @@ -157,6 +161,7 @@ void get_sys_info(sys_info_t *sys_info) else freq_c_pll[i] = sys_info->freq_systembus * ratio[i]; } + #ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2 /* * As per CHASSIS2 architeture total 12 clusters are posible and @@ -181,6 +186,20 @@ void get_sys_info(sys_info_t *sys_info) sys_info->freq_processor[cpu] = freq_c_pll[cplx_pll] / core_cplx_pll_div[c_pll_sel]; } + +#ifdef CONFIG_HETROGENOUS_CLUSTERS + for_each_cpu(i, dsp_cpu, cpu_num_dspcores(), cpu_dsp_mask()) { + int dsp_cluster = fsl_qoriq_dsp_core_to_cluster(dsp_cpu); + u32 c_pll_sel = (in_be32 + (&clk->clkcsr[dsp_cluster].clkcncsr) >> 27) + & 0xf; + u32 cplx_pll = core_cplx_PLL[c_pll_sel]; + cplx_pll += cc_group[dsp_cluster] - 1; + sys_info->freq_processor_dsp[dsp_cpu] = + freq_c_pll[cplx_pll] / core_cplx_pll_div[c_pll_sel]; + } +#endif + #if defined(CONFIG_PPC_B4860) || defined(CONFIG_PPC_B4420) || \ defined(CONFIG_PPC_T2080) || defined(CONFIG_PPC_T2081) #define FM1_CLK_SEL 0xe0000000 @@ -243,6 +262,127 @@ void get_sys_info(sys_info_t *sys_info) sys_info->freq_qman = sys_info->freq_systembus / CONFIG_QBMAN_CLK_DIV; #endif
+#if defined(CONFIG_SYS_MAPLE) +#define CPRI_CLK_SEL 0x1C000000 +#define CPRI_CLK_SHIFT 26 +#define CPRI_ALT_CLK_SEL 0x00007000 +#define CPRI_ALT_CLK_SHIFT 12 + + rcw_tmp1 = in_be32(&gur->rcwsr[7]); /* Reading RCW bits: 224-255*/ + rcw_tmp2 = in_be32(&gur->rcwsr[15]); /* Reading RCW bits: 480-511*/ + /* For MAPLE and CPRI frequency */ + switch ((rcw_tmp1 & CPRI_CLK_SEL) >> CPRI_CLK_SHIFT) { + case 1: + sys_info->freq_maple = freq_c_pll[CONFIG_SYS_CPRI_CLK]; + sys_info->freq_cpri = freq_c_pll[CONFIG_SYS_CPRI_CLK]; + break; + case 2: + sys_info->freq_maple = freq_c_pll[CONFIG_SYS_CPRI_CLK] / 2; + sys_info->freq_cpri = freq_c_pll[CONFIG_SYS_CPRI_CLK] / 2; + break; + case 3: + sys_info->freq_maple = freq_c_pll[CONFIG_SYS_CPRI_CLK] / 3; + sys_info->freq_cpri = freq_c_pll[CONFIG_SYS_CPRI_CLK] / 3; + break; + case 4: + sys_info->freq_maple = freq_c_pll[CONFIG_SYS_CPRI_CLK] / 4; + sys_info->freq_cpri = freq_c_pll[CONFIG_SYS_CPRI_CLK] / 4; + break; + case 5: + if (((rcw_tmp2 & CPRI_ALT_CLK_SEL) + >> CPRI_ALT_CLK_SHIFT) == 6) { + sys_info->freq_maple = + freq_c_pll[CONFIG_SYS_CPRI_CLK - 2] / 2; + sys_info->freq_cpri = + freq_c_pll[CONFIG_SYS_CPRI_CLK - 2] / 2; + } + if (((rcw_tmp2 & CPRI_ALT_CLK_SEL) + >> CPRI_ALT_CLK_SHIFT) == 7) { + sys_info->freq_maple = + freq_c_pll[CONFIG_SYS_CPRI_CLK - 2] / 3; + sys_info->freq_cpri = + freq_c_pll[CONFIG_SYS_CPRI_CLK - 2] / 3; + } + break; + case 6: + sys_info->freq_maple = freq_c_pll[CONFIG_SYS_CPRI_CLK + 1] / 2; + sys_info->freq_cpri = freq_c_pll[CONFIG_SYS_CPRI_CLK + 1] / 2; + break; + case 7: + sys_info->freq_maple = freq_c_pll[CONFIG_SYS_CPRI_CLK + 1] / 3; + sys_info->freq_cpri = freq_c_pll[CONFIG_SYS_CPRI_CLK + 1] / 3; + break; + default: + printf("Error: Unknown MAPLE/CPRI clock select!\n"); + } + + /* For MAPLE ULB and eTVPE frequencies */ +#define ULB_CLK_SEL 0x00000038 +#define ULB_CLK_SHIFT 3 +#define ETVPE_CLK_SEL 0x00000007 +#define ETVPE_CLK_SHIFT 0 + + switch ((rcw_tmp2 & ULB_CLK_SEL) >> ULB_CLK_SHIFT) { + case 1: + sys_info->freq_maple_ulb = freq_c_pll[CONFIG_SYS_ULB_CLK]; + break; + case 2: + sys_info->freq_maple_ulb = freq_c_pll[CONFIG_SYS_ULB_CLK] / 2; + break; + case 3: + sys_info->freq_maple_ulb = freq_c_pll[CONFIG_SYS_ULB_CLK] / 3; + break; + case 4: + sys_info->freq_maple_ulb = freq_c_pll[CONFIG_SYS_ULB_CLK] / 4; + break; + case 5: + sys_info->freq_maple_ulb = sys_info->freq_systembus; + break; + case 6: + sys_info->freq_maple_ulb = + freq_c_pll[CONFIG_SYS_ULB_CLK - 1] / 2; + break; + case 7: + sys_info->freq_maple_ulb = + freq_c_pll[CONFIG_SYS_ULB_CLK - 1] / 3; + break; + default: + printf("Error: Unknown MAPLE ULB clock select!\n"); + } + + switch ((rcw_tmp2 & ETVPE_CLK_SEL) >> ETVPE_CLK_SHIFT) { + case 1: + sys_info->freq_maple_etvpe = freq_c_pll[CONFIG_SYS_ETVPE_CLK]; + break; + case 2: + sys_info->freq_maple_etvpe = + freq_c_pll[CONFIG_SYS_ETVPE_CLK] / 2; + break; + case 3: + sys_info->freq_maple_etvpe = + freq_c_pll[CONFIG_SYS_ETVPE_CLK] / 3; + break; + case 4: + sys_info->freq_maple_etvpe = + freq_c_pll[CONFIG_SYS_ETVPE_CLK] / 4; + break; + case 5: + sys_info->freq_maple_etvpe = sys_info->freq_systembus; + break; + case 6: + sys_info->freq_maple_etvpe = + freq_c_pll[CONFIG_SYS_ETVPE_CLK - 1] / 2; + break; + case 7: + sys_info->freq_maple_etvpe = + freq_c_pll[CONFIG_SYS_ETVPE_CLK - 1] / 3; + break; + default: + printf("Error: Unknown MAPLE eTVPE clock select!\n"); + } + +#endif + #ifdef CONFIG_SYS_DPAA_FMAN #ifndef CONFIG_FM_PLAT_CLK_DIV switch ((rcw_tmp & FM1_CLK_SEL) >> FM1_CLK_SHIFT) { diff --git a/arch/powerpc/cpu/mpc8xxx/cpu.c b/arch/powerpc/cpu/mpc8xxx/cpu.c index 2d28eb2..de565d8 100644 --- a/arch/powerpc/cpu/mpc8xxx/cpu.c +++ b/arch/powerpc/cpu/mpc8xxx/cpu.c @@ -132,6 +132,53 @@ u32 compute_ppc_cpumask(void) return mask; }
+#ifdef CONFIG_HETROGENOUS_CLUSTERS +u32 compute_dsp_cpumask(void) +{ + ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); + int i = CONFIG_DSP_CLUSTER_START, count = 0; + u32 cluster, type, dsp_mask = 0; + + do { + int j; + cluster = in_be32(&gur->tp_cluster[i].lower); + for (j = 0; j < TP_INIT_PER_CLUSTER; j++) { + type = init_type(cluster, j); + if (type) { + if (TP_ITYP_TYPE(type) == TP_ITYP_TYPE_SC) + dsp_mask |= 1 << count; + count++; + } + } + i++; + } while ((cluster & TP_CLUSTER_EOC) != TP_CLUSTER_EOC); + + return dsp_mask; +} + +int fsl_qoriq_dsp_core_to_cluster(unsigned int core) +{ + ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); + int count = 0, i = CONFIG_DSP_CLUSTER_START; + u32 cluster; + + do { + int j; + cluster = in_be32(&gur->tp_cluster[i].lower); + for (j = 0; j < TP_INIT_PER_CLUSTER; j++) { + if (init_type(cluster, j)) { + if (count == core) + return i; + count++; + } + } + i++; + } while ((cluster & TP_CLUSTER_EOC) != TP_CLUSTER_EOC); + + return -1; /* cannot identify the cluster */ +} +#endif + int fsl_qoriq_core_to_cluster(unsigned int core) { ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); @@ -197,8 +244,43 @@ __weak u32 cpu_mask(void) return cpu->mask; }
+#ifdef CONFIG_HETROGENOUS_CLUSTERS +__weak u32 cpu_dsp_mask(void) +{ + ccsr_pic_t __iomem *pic = (void *)CONFIG_SYS_MPC8xxx_PIC_ADDR; + struct cpu_type *cpu = gd->arch.cpu; + + /* better to query feature reporting register than just assume 1 */ + if (cpu == &cpu_type_unknown) + return ((in_be32(&pic->frr) & MPC8xxx_PICFRR_NCPU_MASK) >> + MPC8xxx_PICFRR_NCPU_SHIFT) + 1; + + if (cpu->dsp_num_cores == 0) + return compute_dsp_cpumask(); + + return cpu->dsp_mask; +} + /* - * Return the number of cores on this SOC. + * Return the number of SC/DSP cores on this SOC. + */ +__weak int cpu_num_dspcores(void) +{ + struct cpu_type *cpu = gd->arch.cpu; + + /* + * Report # of cores in terms of the cpu_mask if we haven't + * figured out how many there are yet + */ + if (cpu->dsp_num_cores == 0) + return hweight32(cpu_dsp_mask()); + + return cpu->dsp_num_cores; +} +#endif + +/* + * Return the number of PPC cores on this SOC. */ __weak int cpu_numcores(void) { @@ -214,6 +296,7 @@ __weak int cpu_numcores(void) return cpu->num_cores; }
+ /* * Check if the given core ID is valid * @@ -247,6 +330,12 @@ int fixup_cpu(void) cpu->num_cores = cpu_numcores(); }
+#ifdef CONFIG_HETROGENOUS_CLUSTERS + if (cpu->dsp_num_cores == 0) { + cpu->dsp_mask = cpu_dsp_mask(); + cpu->dsp_num_cores = cpu_num_dspcores(); + } +#endif return 0; }
diff --git a/arch/powerpc/include/asm/config_mpc85xx.h b/arch/powerpc/include/asm/config_mpc85xx.h index 01b0905..236ef1c 100644 --- a/arch/powerpc/include/asm/config_mpc85xx.h +++ b/arch/powerpc/include/asm/config_mpc85xx.h @@ -689,13 +689,22 @@ #define CONFIG_FSL_CORENET /* Freescale CoreNet platform */ #define CONFIG_SYS_FSL_QORIQ_CHASSIS2 /* Freescale Chassis generation 2 */ #define CONFIG_SYS_FSL_QMAN_V3 /* QMAN version 3 */ +#define CONFIG_HETROGENOUS_CLUSTERS /* DSP/SC3900 core clusters */ +#define CONFIG_PPC_CLUSTER_START 0 /*Start index of ppc clusters*/ +#define CONFIG_DSP_CLUSTER_START 1 /*Start index of dsp clusters*/ #define CONFIG_SYS_FSL_NUM_LAWS 32 #define CONFIG_SYS_FSL_SRDS_1 #define CONFIG_SYS_FSL_SRDS_2 +#define CONFIG_SYS_MAPLE +#define CONFIG_SYS_CPRI +#define CONFIG_SYS_FSL_NUM_CC_PLLS 5 #define CONFIG_SYS_FSL_SEC_COMPAT 4 #define CONFIG_SYS_NUM_FMAN 1 #define CONFIG_USB_MAX_CONTROLLER_COUNT 1 #define CONFIG_SYS_FM1_CLK 0 +#define CONFIG_SYS_CPRI_CLK 3 +#define CONFIG_SYS_ULB_CLK 4 +#define CONFIG_SYS_ETVPE_CLK 1 #define CONFIG_SYS_FSL_DDR_VER FSL_DDR_VER_4_7 #define CONFIG_SYS_FSL_IFC_BANK_COUNT 4 #define CONFIG_SYS_FMAN_V3 @@ -718,8 +727,9 @@ #ifdef CONFIG_PPC_B4860 #define CONFIG_SYS_FSL_CORES_PER_CLUSTER 4 #define CONFIG_MAX_CPUS 4 +#define CONFIG_MAX_DSP_CPUS 12 +#define CONFIG_NUM_DSP_CPUS 6 #define CONFIG_SYS_FSL_SRDS_NUM_PLLS 2 -#define CONFIG_SYS_FSL_NUM_CC_PLLS 4 #define CONFIG_SYS_FSL_CLUSTER_CLOCKS { 1, 4, 4, 4 } #define CONFIG_SYS_NUM_FM1_DTSEC 6 #define CONFIG_SYS_NUM_FM1_10GEC 2 @@ -731,9 +741,9 @@ #define CONFIG_SYS_FSL_SRIO_LIODN #else #define CONFIG_MAX_CPUS 2 +#define CONFIG_MAX_DSP_CPUS 2 #define CONFIG_SYS_FSL_SRDS_NUM_PLLS 1 #define CONFIG_SYS_FSL_CORES_PER_CLUSTER 2 -#define CONFIG_SYS_FSL_NUM_CC_PLLS 4 #define CONFIG_SYS_FSL_CLUSTER_CLOCKS { 1, 4 } #define CONFIG_SYS_NUM_FM1_DTSEC 4 #define CONFIG_SYS_NUM_FM1_10GEC 0 diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h index db8cc8c..fdfca90 100644 --- a/arch/powerpc/include/asm/processor.h +++ b/arch/powerpc/include/asm/processor.h @@ -1202,12 +1202,17 @@ struct cpu_type { u32 soc_ver; u32 num_cores; u32 mask; /* which cpu(s) actually exist */ +#ifdef CONFIG_HETROGENOUS_CLUSTERS + u32 dsp_num_cores; + u32 dsp_mask; /* which DSP cpu(s) actually exist */ +#endif };
struct cpu_type *identify_cpu(u32 ver); int fixup_cpu(void);
int fsl_qoriq_core_to_cluster(unsigned int core); +int fsl_qoriq_dsp_core_to_cluster(unsigned int core);
#if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) #define CPU_TYPE_ENTRY(n, v, nc) \ diff --git a/doc/README.Heterogeneous-SoCs b/doc/README.Heterogeneous-SoCs new file mode 100644 index 0000000..9da652e --- /dev/null +++ b/doc/README.Heterogeneous-SoCs @@ -0,0 +1,105 @@ +DSP side awareness for Freescale heterogeneous multicore chips based on +StarCore and Power Architecture +=============================================================== +powerpc/mpc85xx code ve APIs and function to get the number, +configuration and frequencies of all PowerPC cores and devices +connected to them, but it didnt have the similar code ofr HEterogeneous +SC3900/DSP cores and such devices like CPRI, MAPLE, MAPLE-ULB etc. + +Code for DSP side awareness provides such functionality for Freescale +Heterogeneous SoCs which are chasis-2 compliant like B4860 and B4420 + +As part of this feature, following changes have been made: +========================================================== + +1. Changed files: +================= +- arch/powerpc/cpu/mpc85xx/cpu.c + +Code added in this file to print the DSP cores and other device's(CPRI, +MAPLE etc) frequencies + +- arch/powerpc/cpu/mpc85xx/speed.c + +Added Defines and code to extract the frequncy information for all +required cores and devices from RCW and System frequency + +- arch/powerpc/cpu/mpc8xxx/cpu.c + +Added API to get the number of SC cores in running system and Their BIT +MASK, similar to the code written for PowerPC + +- arch/powerpc/include/asm/config_mpc85xx.h + +Added top level CONFIG to identify presence of HETEROGENUOUS clusters +in the system and CONFIGS for SC3900/DSP components + +- arch/powerpc/include/asm/processor.h +- include/common.h + +Added newly added Functions Declaration + +- include/e500.h + +Global structure updated for dsp cores and other components + +2. CONFIGs ADDED +================ + +CONFIG_HETROGENOUS_CLUSTERS - Define for checking the presence of + DSP/SC3900 core clusters + +CONFIG_SYS_FSL_NUM_CC_PLLS - Define for number of PLLs + +Though there are only 4 PLLs in B4, but in sequence of PLLs from PLL1 - +PLL5, PLL3 is Reserved(as mentioned in RM), so this define contains the +value as 5 not 4, to iterate over all PLLs while coding + +CONFIG_SYS_MAPLE - Define for MAPLE Baseband Accelerator +CONFIG_SYS_CPRI - Define for CPRI Interface +CONFIG_PPC_CLUSTER_START - Start index of ppc clusters +CONFIG_DSP_CLUSTER_START - Start index of dsp clusters + +Following are the defines for PLL's index that provide the Clocking to +CPRI, ULB and ETVE components + +CONFIG_SYS_CPRI_CLK - Define PLL index for CPRI clock +CONFIG_SYS_ULB_CLK - Define PLL index for ULB clock +CONFIG_SYS_ETVPE_CLK - Define PLL index for ETVPE clock + +3. Changes in MPC85xx_SYS_INFO Global structure +=============================================== + +DSP cores and other device's components have been added in this structure. + +freq_processor_dsp[CONFIG_MAX_DSP_CPUS] - Array to contain the DSP core's frequencies +freq_cpri - To store CPRI frequency +freq_maple - To store MAPLE frequency +freq_maple_ulb - To store MAPLE-ULB frequency +freq_maple_etvpe - To store MAPLE-eTVPE frequency + +4. U-BOOT LOGS +============== +4.1 B4860QDS board + Boot from NOR flash + +U-Boot 2014.07-00222-g70587a8-dirty (Aug 07 2014 - 13:15:47) + +CPU0: B4860E, Version: 2.0, (0x86880020) +Core: e6500, Version: 2.0, (0x80400020) Clock Configuration: + CPU0:1600 MHz, CPU1:1600 MHz, CPU2:1600 MHz, CPU3:1600 MHz, + DSP CPU0:1200 MHz, DSP CPU1:1200 MHz, DSP CPU2:1200 MHz, DSP CPU3:1200 MHz, + DSP CPU4:1200 MHz, DSP CPU5:1200 MHz, + CCB:666.667 MHz, + DDR:933.333 MHz (1866.667 MT/s data rate) (Asynchronous), IFC:166.667 MHz + CPRI:600 MHz + MAPLE:600 MHz, MAPLE-ULB:800 MHz, MAPLE-eTVPE:1000 MHz + FMAN1: 666.667 MHz + QMAN: 333.333 MHz + +CPUn - PowerPC core +DSP CPUn - SC3900 core + +Shaveta Leekha(shaveta@freescale.com) +Created August 7, 2014 +=========================================== diff --git a/include/common.h b/include/common.h index 4b3e0d3..1c2f2f7 100644 --- a/include/common.h +++ b/include/common.h @@ -533,7 +533,9 @@ static inline int cpumask_next(int cpu, unsigned int mask) iter++, cpu = cpumask_next(cpu, mask)) \
int cpu_numcores (void); +int cpu_num_dspcores(void); u32 cpu_mask (void); +u32 cpu_dsp_mask(void); int is_core_valid (unsigned int); int probecpu (void); int checkcpu (void); diff --git a/include/e500.h b/include/e500.h index 5884a22..255f46b 100644 --- a/include/e500.h +++ b/include/e500.h @@ -11,6 +11,9 @@ typedef struct { unsigned long freq_processor[CONFIG_MAX_CPUS]; +#ifdef CONFIG_HETROGENOUS_CLUSTERS + unsigned long freq_processor_dsp[CONFIG_MAX_DSP_CPUS]; +#endif unsigned long freq_systembus; unsigned long freq_ddrbus; unsigned long freq_localbus; @@ -24,6 +27,14 @@ typedef struct #ifdef CONFIG_SYS_DPAA_PME unsigned long freq_pme; #endif +#ifdef CONFIG_SYS_CPRI + unsigned long freq_cpri; +#endif +#ifdef CONFIG_SYS_MAPLE + unsigned long freq_maple; + unsigned long freq_maple_ulb; + unsigned long freq_maple_etvpe; +#endif #ifdef CONFIG_SYS_FSL_SINGLE_SOURCE_CLK unsigned char diff_sysclk; #endif
Kindly ignore this one, as I forgot to add v2 changes in this patch. Sending another one.
Regards, Shaveta
-----Original Message----- From: Shaveta Leekha [mailto:shaveta@freescale.com] Sent: Monday, January 19, 2015 12:44 PM To: u-boot@lists.denx.de Cc: Aggrwal Poonam-B10812; Sun York-R58495; Leekha Shaveta-B20052 Subject: [PATCH] powerpc/mpc85xx: Add DSP side awareness for Freescale Heterogeneous SoCs
The code provides framework for heterogeneous multicore chips based on StarCore and Power Architecture which are chasis-2 compliant, like B4860 and B4420
It will make u-boot recognize all non-ppc cores and peripherals like SC3900/DSP CPUs, MAPLE, CPRI and print their configuration in u-boot logs. Example boot logs of B4860QDS:
U-Boot 2015.01-00232-geef6e36-dirty (Jan 19 2015 - 11:58:45)
CPU0: B4860E, Version: 2.2, (0x86880022) Core: e6500, Version: 2.0, (0x80400120) Clock Configuration: CPU0:1600 MHz, CPU1:1600 MHz, CPU2:1600 MHz, CPU3:1600 MHz, DSP CPU0:1200 MHz, DSP CPU1:1200 MHz, DSP CPU2:1200 MHz, DSP CPU3:1200 MHz, DSP CPU4:1200 MHz, DSP CPU5:1200 MHz, CCB:666.667 MHz, DDR:933.333 MHz (1866.667 MT/s data rate) (Asynchronous), IFC:166.667 MHz CPRI:600 MHz MAPLE:600 MHz, MAPLE-ULB:800 MHz, MAPLE-eTVPE:1000 MHz FMAN1: 666.667 MHz QMAN: 333.333 MHz
Top level changes include: (1) Top level CONFIG to identify HETEROGENUOUS clusters (2) CONFIGS for SC3900/DSP components (3) Global structures like "cpu_type" and "MPC85xx_SYS_INFO" updated for dsp cores and other components (3) APIs to get DSP num cores and their Mask like: cpu_dsp_mask, cpu_num_dspcores etc same as that of PowerPC (5) Code to fetch and print SC cores and other heterogenous device's frequencies (6) README added for the same
Signed-off-by: Shaveta Leekha shaveta@freescale.com --- arch/powerpc/cpu/mpc85xx/cpu.c | 28 ++++++ arch/powerpc/cpu/mpc85xx/speed.c | 140 +++++++++++++++++++++++++++++ arch/powerpc/cpu/mpc8xxx/cpu.c | 91 ++++++++++++++++++- arch/powerpc/include/asm/config_mpc85xx.h | 14 +++- arch/powerpc/include/asm/processor.h | 5 + doc/README.Heterogeneous-SoCs | 105 +++++++++++++++++++++ include/common.h | 2 + include/e500.h | 11 +++ 8 files changed, 393 insertions(+), 3 deletions(-) create mode 100644 doc/README.Heterogeneous-SoCs
diff --git a/arch/powerpc/cpu/mpc85xx/cpu.c b/arch/powerpc/cpu/mpc85xx/cpu.c index 3d6ec84..ef08489 100644 --- a/arch/powerpc/cpu/mpc85xx/cpu.c +++ b/arch/powerpc/cpu/mpc85xx/cpu.c @@ -73,6 +73,11 @@ int checkcpu (void) unsigned int i, core, nr_cores = cpu_numcores(); u32 mask = cpu_mask();
+#ifdef CONFIG_HETROGENOUS_CLUSTERS + unsigned int j, dsp_core, dsp_numcores = cpu_num_dspcores(); + u32 dsp_mask = cpu_dsp_mask(); +#endif + svr = get_svr(); major = SVR_MAJ(svr); minor = SVR_MIN(svr); @@ -166,6 +171,16 @@ int checkcpu (void) printf("CPU%d:%-4s MHz, ", core, strmhz(buf1, sysinfo.freq_processor[core])); } + +#ifdef CONFIG_HETROGENOUS_CLUSTERS + for_each_cpu(j, dsp_core, dsp_numcores, dsp_mask) { + if (!(j & 3)) + printf("\n "); + printf("DSP CPU%d:%-4s MHz, ", j, + strmhz(buf1, sysinfo.freq_processor_dsp[dsp_core])); + } +#endif + printf("\n CCB:%-4s MHz,", strmhz(buf1, sysinfo.freq_systembus)); printf("\n");
@@ -224,6 +239,19 @@ int checkcpu (void) printf(" QE:%-4s MHz\n", strmhz(buf1, sysinfo.freq_qe)); #endif
+#if defined(CONFIG_SYS_CPRI) + printf(" "); + printf("CPRI:%-4s MHz", strmhz(buf1, sysinfo.freq_cpri)); #endif + +#if defined(CONFIG_SYS_MAPLE) + printf("\n "); + printf("MAPLE:%-4s MHz, ", strmhz(buf1, sysinfo.freq_maple)); + printf("MAPLE-ULB:%-4s MHz, ", strmhz(buf1, sysinfo.freq_maple_ulb)); + printf("MAPLE-eTVPE:%-4s MHz\n", + strmhz(buf1, sysinfo.freq_maple_etvpe)); #endif + #ifdef CONFIG_SYS_DPAA_FMAN for (i = 0; i < CONFIG_SYS_NUM_FMAN; i++) { printf(" FMAN%d: %s MHz\n", i + 1, diff --git a/arch/powerpc/cpu/mpc85xx/speed.c b/arch/powerpc/cpu/mpc85xx/speed.c index 7e69873..e24b857 100644 --- a/arch/powerpc/cpu/mpc85xx/speed.c +++ b/arch/powerpc/cpu/mpc85xx/speed.c @@ -34,6 +34,10 @@ void get_sys_info(sys_info_t *sys_info) #ifdef CONFIG_FSL_CORENET volatile ccsr_clk_t *clk = (void *)(CONFIG_SYS_FSL_CORENET_CLK_ADDR); unsigned int cpu; +#ifdef CONFIG_HETROGENOUS_CLUSTERS + unsigned int dsp_cpu; + uint rcw_tmp1, rcw_tmp2; +#endif #ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2 int cc_group[12] = CONFIG_SYS_FSL_CLUSTER_CLOCKS; #endif @@ -157,6 +161,7 @@ void get_sys_info(sys_info_t *sys_info) else freq_c_pll[i] = sys_info->freq_systembus * ratio[i]; } + #ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2 /* * As per CHASSIS2 architeture total 12 clusters are posible and @@ -181,6 +186,20 @@ void get_sys_info(sys_info_t *sys_info) sys_info->freq_processor[cpu] = freq_c_pll[cplx_pll] / core_cplx_pll_div[c_pll_sel]; } + +#ifdef CONFIG_HETROGENOUS_CLUSTERS + for_each_cpu(i, dsp_cpu, cpu_num_dspcores(), cpu_dsp_mask()) { + int dsp_cluster = fsl_qoriq_dsp_core_to_cluster(dsp_cpu); + u32 c_pll_sel = (in_be32 + (&clk->clkcsr[dsp_cluster].clkcncsr) >> 27) + & 0xf; + u32 cplx_pll = core_cplx_PLL[c_pll_sel]; + cplx_pll += cc_group[dsp_cluster] - 1; + sys_info->freq_processor_dsp[dsp_cpu] = + freq_c_pll[cplx_pll] / core_cplx_pll_div[c_pll_sel]; + } +#endif + #if defined(CONFIG_PPC_B4860) || defined(CONFIG_PPC_B4420) || \ defined(CONFIG_PPC_T2080) || defined(CONFIG_PPC_T2081) #define FM1_CLK_SEL 0xe0000000 @@ -243,6 +262,127 @@ void get_sys_info(sys_info_t *sys_info) sys_info->freq_qman = sys_info->freq_systembus / CONFIG_QBMAN_CLK_DIV; #endif
+#if defined(CONFIG_SYS_MAPLE) +#define CPRI_CLK_SEL 0x1C000000 +#define CPRI_CLK_SHIFT 26 +#define CPRI_ALT_CLK_SEL 0x00007000 +#define CPRI_ALT_CLK_SHIFT 12 + + rcw_tmp1 = in_be32(&gur->rcwsr[7]); /* Reading RCW bits: 224-255*/ + rcw_tmp2 = in_be32(&gur->rcwsr[15]); /* Reading RCW bits: 480-511*/ + /* For MAPLE and CPRI frequency */ + switch ((rcw_tmp1 & CPRI_CLK_SEL) >> CPRI_CLK_SHIFT) { + case 1: + sys_info->freq_maple = freq_c_pll[CONFIG_SYS_CPRI_CLK]; + sys_info->freq_cpri = freq_c_pll[CONFIG_SYS_CPRI_CLK]; + break; + case 2: + sys_info->freq_maple = freq_c_pll[CONFIG_SYS_CPRI_CLK] / 2; + sys_info->freq_cpri = freq_c_pll[CONFIG_SYS_CPRI_CLK] / 2; + break; + case 3: + sys_info->freq_maple = freq_c_pll[CONFIG_SYS_CPRI_CLK] / 3; + sys_info->freq_cpri = freq_c_pll[CONFIG_SYS_CPRI_CLK] / 3; + break; + case 4: + sys_info->freq_maple = freq_c_pll[CONFIG_SYS_CPRI_CLK] / 4; + sys_info->freq_cpri = freq_c_pll[CONFIG_SYS_CPRI_CLK] / 4; + break; + case 5: + if (((rcw_tmp2 & CPRI_ALT_CLK_SEL) + >> CPRI_ALT_CLK_SHIFT) == 6) { + sys_info->freq_maple = + freq_c_pll[CONFIG_SYS_CPRI_CLK - 2] / 2; + sys_info->freq_cpri = + freq_c_pll[CONFIG_SYS_CPRI_CLK - 2] / 2; + } + if (((rcw_tmp2 & CPRI_ALT_CLK_SEL) + >> CPRI_ALT_CLK_SHIFT) == 7) { + sys_info->freq_maple = + freq_c_pll[CONFIG_SYS_CPRI_CLK - 2] / 3; + sys_info->freq_cpri = + freq_c_pll[CONFIG_SYS_CPRI_CLK - 2] / 3; + } + break; + case 6: + sys_info->freq_maple = freq_c_pll[CONFIG_SYS_CPRI_CLK + 1] / 2; + sys_info->freq_cpri = freq_c_pll[CONFIG_SYS_CPRI_CLK + 1] / 2; + break; + case 7: + sys_info->freq_maple = freq_c_pll[CONFIG_SYS_CPRI_CLK + 1] / 3; + sys_info->freq_cpri = freq_c_pll[CONFIG_SYS_CPRI_CLK + 1] / 3; + break; + default: + printf("Error: Unknown MAPLE/CPRI clock select!\n"); + } + + /* For MAPLE ULB and eTVPE frequencies */ +#define ULB_CLK_SEL 0x00000038 +#define ULB_CLK_SHIFT 3 +#define ETVPE_CLK_SEL 0x00000007 +#define ETVPE_CLK_SHIFT 0 + + switch ((rcw_tmp2 & ULB_CLK_SEL) >> ULB_CLK_SHIFT) { + case 1: + sys_info->freq_maple_ulb = freq_c_pll[CONFIG_SYS_ULB_CLK]; + break; + case 2: + sys_info->freq_maple_ulb = freq_c_pll[CONFIG_SYS_ULB_CLK] / 2; + break; + case 3: + sys_info->freq_maple_ulb = freq_c_pll[CONFIG_SYS_ULB_CLK] / 3; + break; + case 4: + sys_info->freq_maple_ulb = freq_c_pll[CONFIG_SYS_ULB_CLK] / 4; + break; + case 5: + sys_info->freq_maple_ulb = sys_info->freq_systembus; + break; + case 6: + sys_info->freq_maple_ulb = + freq_c_pll[CONFIG_SYS_ULB_CLK - 1] / 2; + break; + case 7: + sys_info->freq_maple_ulb = + freq_c_pll[CONFIG_SYS_ULB_CLK - 1] / 3; + break; + default: + printf("Error: Unknown MAPLE ULB clock select!\n"); + } + + switch ((rcw_tmp2 & ETVPE_CLK_SEL) >> ETVPE_CLK_SHIFT) { + case 1: + sys_info->freq_maple_etvpe = freq_c_pll[CONFIG_SYS_ETVPE_CLK]; + break; + case 2: + sys_info->freq_maple_etvpe = + freq_c_pll[CONFIG_SYS_ETVPE_CLK] / 2; + break; + case 3: + sys_info->freq_maple_etvpe = + freq_c_pll[CONFIG_SYS_ETVPE_CLK] / 3; + break; + case 4: + sys_info->freq_maple_etvpe = + freq_c_pll[CONFIG_SYS_ETVPE_CLK] / 4; + break; + case 5: + sys_info->freq_maple_etvpe = sys_info->freq_systembus; + break; + case 6: + sys_info->freq_maple_etvpe = + freq_c_pll[CONFIG_SYS_ETVPE_CLK - 1] / 2; + break; + case 7: + sys_info->freq_maple_etvpe = + freq_c_pll[CONFIG_SYS_ETVPE_CLK - 1] / 3; + break; + default: + printf("Error: Unknown MAPLE eTVPE clock select!\n"); + } + +#endif + #ifdef CONFIG_SYS_DPAA_FMAN #ifndef CONFIG_FM_PLAT_CLK_DIV switch ((rcw_tmp & FM1_CLK_SEL) >> FM1_CLK_SHIFT) { diff --git a/arch/powerpc/cpu/mpc8xxx/cpu.c b/arch/powerpc/cpu/mpc8xxx/cpu.c index 2d28eb2..de565d8 100644 --- a/arch/powerpc/cpu/mpc8xxx/cpu.c +++ b/arch/powerpc/cpu/mpc8xxx/cpu.c @@ -132,6 +132,53 @@ u32 compute_ppc_cpumask(void) return mask; }
+#ifdef CONFIG_HETROGENOUS_CLUSTERS +u32 compute_dsp_cpumask(void) +{ + ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); + int i = CONFIG_DSP_CLUSTER_START, count = 0; + u32 cluster, type, dsp_mask = 0; + + do { + int j; + cluster = in_be32(&gur->tp_cluster[i].lower); + for (j = 0; j < TP_INIT_PER_CLUSTER; j++) { + type = init_type(cluster, j); + if (type) { + if (TP_ITYP_TYPE(type) == TP_ITYP_TYPE_SC) + dsp_mask |= 1 << count; + count++; + } + } + i++; + } while ((cluster & TP_CLUSTER_EOC) != TP_CLUSTER_EOC); + + return dsp_mask; +} + +int fsl_qoriq_dsp_core_to_cluster(unsigned int core) { + ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); + int count = 0, i = CONFIG_DSP_CLUSTER_START; + u32 cluster; + + do { + int j; + cluster = in_be32(&gur->tp_cluster[i].lower); + for (j = 0; j < TP_INIT_PER_CLUSTER; j++) { + if (init_type(cluster, j)) { + if (count == core) + return i; + count++; + } + } + i++; + } while ((cluster & TP_CLUSTER_EOC) != TP_CLUSTER_EOC); + + return -1; /* cannot identify the cluster */ +} +#endif + int fsl_qoriq_core_to_cluster(unsigned int core) { ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); @@ -197,8 +244,43 @@ __weak u32 cpu_mask(void) return cpu->mask; }
+#ifdef CONFIG_HETROGENOUS_CLUSTERS +__weak u32 cpu_dsp_mask(void) +{ + ccsr_pic_t __iomem *pic = (void *)CONFIG_SYS_MPC8xxx_PIC_ADDR; + struct cpu_type *cpu = gd->arch.cpu; + + /* better to query feature reporting register than just assume 1 */ + if (cpu == &cpu_type_unknown) + return ((in_be32(&pic->frr) & MPC8xxx_PICFRR_NCPU_MASK) >> + MPC8xxx_PICFRR_NCPU_SHIFT) + 1; + + if (cpu->dsp_num_cores == 0) + return compute_dsp_cpumask(); + + return cpu->dsp_mask; +} + /* - * Return the number of cores on this SOC. + * Return the number of SC/DSP cores on this SOC. + */ +__weak int cpu_num_dspcores(void) +{ + struct cpu_type *cpu = gd->arch.cpu; + + /* + * Report # of cores in terms of the cpu_mask if we haven't + * figured out how many there are yet + */ + if (cpu->dsp_num_cores == 0) + return hweight32(cpu_dsp_mask()); + + return cpu->dsp_num_cores; +} +#endif + +/* + * Return the number of PPC cores on this SOC. */ __weak int cpu_numcores(void) { @@ -214,6 +296,7 @@ __weak int cpu_numcores(void) return cpu->num_cores; }
+ /* * Check if the given core ID is valid * @@ -247,6 +330,12 @@ int fixup_cpu(void) cpu->num_cores = cpu_numcores(); }
+#ifdef CONFIG_HETROGENOUS_CLUSTERS + if (cpu->dsp_num_cores == 0) { + cpu->dsp_mask = cpu_dsp_mask(); + cpu->dsp_num_cores = cpu_num_dspcores(); + } +#endif return 0; }
diff --git a/arch/powerpc/include/asm/config_mpc85xx.h b/arch/powerpc/include/asm/config_mpc85xx.h index 01b0905..236ef1c 100644 --- a/arch/powerpc/include/asm/config_mpc85xx.h +++ b/arch/powerpc/include/asm/config_mpc85xx.h @@ -689,13 +689,22 @@ #define CONFIG_FSL_CORENET /* Freescale CoreNet platform */ #define CONFIG_SYS_FSL_QORIQ_CHASSIS2 /* Freescale Chassis generation 2 */ #define CONFIG_SYS_FSL_QMAN_V3 /* QMAN version 3 */ +#define CONFIG_HETROGENOUS_CLUSTERS /* DSP/SC3900 core clusters */ +#define CONFIG_PPC_CLUSTER_START 0 /*Start index of ppc clusters*/ +#define CONFIG_DSP_CLUSTER_START 1 /*Start index of dsp clusters*/ #define CONFIG_SYS_FSL_NUM_LAWS 32 #define CONFIG_SYS_FSL_SRDS_1 #define CONFIG_SYS_FSL_SRDS_2 +#define CONFIG_SYS_MAPLE +#define CONFIG_SYS_CPRI +#define CONFIG_SYS_FSL_NUM_CC_PLLS 5 #define CONFIG_SYS_FSL_SEC_COMPAT 4 #define CONFIG_SYS_NUM_FMAN 1 #define CONFIG_USB_MAX_CONTROLLER_COUNT 1 #define CONFIG_SYS_FM1_CLK 0 +#define CONFIG_SYS_CPRI_CLK 3 +#define CONFIG_SYS_ULB_CLK 4 +#define CONFIG_SYS_ETVPE_CLK 1 #define CONFIG_SYS_FSL_DDR_VER FSL_DDR_VER_4_7 #define CONFIG_SYS_FSL_IFC_BANK_COUNT 4 #define CONFIG_SYS_FMAN_V3 @@ -718,8 +727,9 @@ #ifdef CONFIG_PPC_B4860 #define CONFIG_SYS_FSL_CORES_PER_CLUSTER 4 #define CONFIG_MAX_CPUS 4 +#define CONFIG_MAX_DSP_CPUS 12 +#define CONFIG_NUM_DSP_CPUS 6 #define CONFIG_SYS_FSL_SRDS_NUM_PLLS 2 -#define CONFIG_SYS_FSL_NUM_CC_PLLS 4 #define CONFIG_SYS_FSL_CLUSTER_CLOCKS { 1, 4, 4, 4 } #define CONFIG_SYS_NUM_FM1_DTSEC 6 #define CONFIG_SYS_NUM_FM1_10GEC 2 @@ -731,9 +741,9 @@ #define CONFIG_SYS_FSL_SRIO_LIODN #else #define CONFIG_MAX_CPUS 2 +#define CONFIG_MAX_DSP_CPUS 2 #define CONFIG_SYS_FSL_SRDS_NUM_PLLS 1 #define CONFIG_SYS_FSL_CORES_PER_CLUSTER 2 -#define CONFIG_SYS_FSL_NUM_CC_PLLS 4 #define CONFIG_SYS_FSL_CLUSTER_CLOCKS { 1, 4 } #define CONFIG_SYS_NUM_FM1_DTSEC 4 #define CONFIG_SYS_NUM_FM1_10GEC 0 diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h index db8cc8c..fdfca90 100644 --- a/arch/powerpc/include/asm/processor.h +++ b/arch/powerpc/include/asm/processor.h @@ -1202,12 +1202,17 @@ struct cpu_type { u32 soc_ver; u32 num_cores; u32 mask; /* which cpu(s) actually exist */ +#ifdef CONFIG_HETROGENOUS_CLUSTERS + u32 dsp_num_cores; + u32 dsp_mask; /* which DSP cpu(s) actually exist */ +#endif };
struct cpu_type *identify_cpu(u32 ver); int fixup_cpu(void);
int fsl_qoriq_core_to_cluster(unsigned int core); +int fsl_qoriq_dsp_core_to_cluster(unsigned int core);
#if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) #define CPU_TYPE_ENTRY(n, v, nc) \ diff --git a/doc/README.Heterogeneous-SoCs b/doc/README.Heterogeneous-SoCs new file mode 100644 index 0000000..9da652e --- /dev/null +++ b/doc/README.Heterogeneous-SoCs @@ -0,0 +1,105 @@ +DSP side awareness for Freescale heterogeneous multicore chips based on +StarCore and Power Architecture +=============================================================== +powerpc/mpc85xx code ve APIs and function to get the number, +configuration and frequencies of all PowerPC cores and devices +connected to them, but it didnt have the similar code ofr HEterogeneous +SC3900/DSP cores and such devices like CPRI, MAPLE, MAPLE-ULB etc. + +Code for DSP side awareness provides such functionality for Freescale +Heterogeneous SoCs which are chasis-2 compliant like B4860 and B4420 + +As part of this feature, following changes have been made: +========================================================== + +1. Changed files: +================= +- arch/powerpc/cpu/mpc85xx/cpu.c + +Code added in this file to print the DSP cores and other device's(CPRI, +MAPLE etc) frequencies + +- arch/powerpc/cpu/mpc85xx/speed.c + +Added Defines and code to extract the frequncy information for all +required cores and devices from RCW and System frequency + +- arch/powerpc/cpu/mpc8xxx/cpu.c + +Added API to get the number of SC cores in running system and Their BIT +MASK, similar to the code written for PowerPC + +- arch/powerpc/include/asm/config_mpc85xx.h + +Added top level CONFIG to identify presence of HETEROGENUOUS clusters +in the system and CONFIGS for SC3900/DSP components + +- arch/powerpc/include/asm/processor.h +- include/common.h + +Added newly added Functions Declaration + +- include/e500.h + +Global structure updated for dsp cores and other components + +2. CONFIGs ADDED +================ + +CONFIG_HETROGENOUS_CLUSTERS - Define for checking the presence of + DSP/SC3900 core clusters + +CONFIG_SYS_FSL_NUM_CC_PLLS - Define for number of PLLs + +Though there are only 4 PLLs in B4, but in sequence of PLLs from PLL1 - +PLL5, PLL3 is Reserved(as mentioned in RM), so this define contains the +value as 5 not 4, to iterate over all PLLs while coding + +CONFIG_SYS_MAPLE - Define for MAPLE Baseband Accelerator +CONFIG_SYS_CPRI - Define for CPRI Interface +CONFIG_PPC_CLUSTER_START - Start index of ppc clusters +CONFIG_DSP_CLUSTER_START - Start index of dsp clusters + +Following are the defines for PLL's index that provide the Clocking to +CPRI, ULB and ETVE components + +CONFIG_SYS_CPRI_CLK - Define PLL index for CPRI clock +CONFIG_SYS_ULB_CLK - Define PLL index for ULB clock +CONFIG_SYS_ETVPE_CLK - Define PLL index for ETVPE clock + +3. Changes in MPC85xx_SYS_INFO Global structure +=============================================== + +DSP cores and other device's components have been added in this structure. + +freq_processor_dsp[CONFIG_MAX_DSP_CPUS] - Array to contain the DSP core's frequencies +freq_cpri - To store CPRI frequency +freq_maple - To store MAPLE frequency +freq_maple_ulb - To store MAPLE-ULB frequency +freq_maple_etvpe - To store MAPLE-eTVPE frequency + +4. U-BOOT LOGS +============== +4.1 B4860QDS board + Boot from NOR flash + +U-Boot 2014.07-00222-g70587a8-dirty (Aug 07 2014 - 13:15:47) + +CPU0: B4860E, Version: 2.0, (0x86880020) +Core: e6500, Version: 2.0, (0x80400020) Clock Configuration: + CPU0:1600 MHz, CPU1:1600 MHz, CPU2:1600 MHz, CPU3:1600 MHz, + DSP CPU0:1200 MHz, DSP CPU1:1200 MHz, DSP CPU2:1200 MHz, DSP CPU3:1200 MHz, + DSP CPU4:1200 MHz, DSP CPU5:1200 MHz, + CCB:666.667 MHz, + DDR:933.333 MHz (1866.667 MT/s data rate) (Asynchronous), IFC:166.667 MHz + CPRI:600 MHz + MAPLE:600 MHz, MAPLE-ULB:800 MHz, MAPLE-eTVPE:1000 MHz + FMAN1: 666.667 MHz + QMAN: 333.333 MHz + +CPUn - PowerPC core +DSP CPUn - SC3900 core + +Shaveta Leekha(shaveta@freescale.com) +Created August 7, 2014 +=========================================== diff --git a/include/common.h b/include/common.h index 4b3e0d3..1c2f2f7 100644 --- a/include/common.h +++ b/include/common.h @@ -533,7 +533,9 @@ static inline int cpumask_next(int cpu, unsigned int mask) iter++, cpu = cpumask_next(cpu, mask)) \
int cpu_numcores (void); +int cpu_num_dspcores(void); u32 cpu_mask (void); +u32 cpu_dsp_mask(void); int is_core_valid (unsigned int); int probecpu (void); int checkcpu (void); diff --git a/include/e500.h b/include/e500.h index 5884a22..255f46b 100644 --- a/include/e500.h +++ b/include/e500.h @@ -11,6 +11,9 @@ typedef struct { unsigned long freq_processor[CONFIG_MAX_CPUS]; +#ifdef CONFIG_HETROGENOUS_CLUSTERS + unsigned long freq_processor_dsp[CONFIG_MAX_DSP_CPUS]; +#endif unsigned long freq_systembus; unsigned long freq_ddrbus; unsigned long freq_localbus; @@ -24,6 +27,14 @@ typedef struct #ifdef CONFIG_SYS_DPAA_PME unsigned long freq_pme; #endif +#ifdef CONFIG_SYS_CPRI + unsigned long freq_cpri; +#endif +#ifdef CONFIG_SYS_MAPLE + unsigned long freq_maple; + unsigned long freq_maple_ulb; + unsigned long freq_maple_etvpe; +#endif #ifdef CONFIG_SYS_FSL_SINGLE_SOURCE_CLK unsigned char diff_sysclk; #endif -- 1.7.6.GIT
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