Freescale LayerScape with Chassis Generation 3 is a set of SoCs with ARMv8 cores and 3rd generation of Chassis. We use different MMU setup to support memory map and cache attribute for these SoCs. MMU and cache are enabled very early to bootst performance, especially for early development on emulators. After u-boot relocates to DDR, a new MMU table with QBMan cache access is created in DDR. SMMU pagesize is set in SMMU_sACR register. Both DDR3 and DDR4 are supported.
Signed-off-by: York Sun yorksun@freescale.com Signed-off-by: Varun Sethi Varun.Sethi@freescale.com Signed-off-by: Arnab Basu arnab.basu@freescale.com --- Change log v5: Revise the 2nd MMU table code to use the same macros Only change TTBR to point to new MMU table without rewriting MAIR, TCR
v4: Slit ARMv8 MMU change to another patch, v4 2/5 Add more comment for final MMU table setup Remove mmu.h added in v3 and v2 Remove GICv2 macro testing in lowlevel.S Rename function init_type() to initiator_type() Use ARMv8 generic timer code
v3: Remove blank lines at the of files Fix cluster PLL GSR register for accessing beyond array size Update final MMU table to support QBMan memory with cache Set SMMU pagesize in SMMU_sACR register in lowlevel init. Add DDR4 support Remove forcing L3 cache flusing Update GICv3 redistributor base address Some of these changes are caused by model change.
arch/arm/cpu/armv8/cache_v8.c | 7 +- arch/arm/cpu/armv8/fsl-lsch3/Makefile | 9 + arch/arm/cpu/armv8/fsl-lsch3/README | 10 + arch/arm/cpu/armv8/fsl-lsch3/cpu.c | 446 +++++++++++++++++++++ arch/arm/cpu/armv8/fsl-lsch3/cpu.h | 7 + arch/arm/cpu/armv8/fsl-lsch3/lowlevel.S | 65 +++ arch/arm/cpu/armv8/fsl-lsch3/speed.c | 176 ++++++++ arch/arm/cpu/armv8/fsl-lsch3/speed.h | 7 + arch/arm/include/asm/arch-fsl-lsch3/clock.h | 23 ++ arch/arm/include/asm/arch-fsl-lsch3/config.h | 65 +++ arch/arm/include/asm/arch-fsl-lsch3/gpio.h | 9 + arch/arm/include/asm/arch-fsl-lsch3/immap_lsch3.h | 116 ++++++ arch/arm/include/asm/arch-fsl-lsch3/imx-regs.h | 13 + arch/arm/include/asm/config.h | 4 + arch/arm/include/asm/system.h | 2 + drivers/i2c/mxc_i2c.c | 5 + include/common.h | 5 +- 17 files changed, 965 insertions(+), 4 deletions(-) create mode 100644 arch/arm/cpu/armv8/fsl-lsch3/Makefile create mode 100644 arch/arm/cpu/armv8/fsl-lsch3/README create mode 100644 arch/arm/cpu/armv8/fsl-lsch3/cpu.c create mode 100644 arch/arm/cpu/armv8/fsl-lsch3/cpu.h create mode 100644 arch/arm/cpu/armv8/fsl-lsch3/lowlevel.S create mode 100644 arch/arm/cpu/armv8/fsl-lsch3/speed.c create mode 100644 arch/arm/cpu/armv8/fsl-lsch3/speed.h create mode 100644 arch/arm/include/asm/arch-fsl-lsch3/clock.h create mode 100644 arch/arm/include/asm/arch-fsl-lsch3/config.h create mode 100644 arch/arm/include/asm/arch-fsl-lsch3/gpio.h create mode 100644 arch/arm/include/asm/arch-fsl-lsch3/immap_lsch3.h create mode 100644 arch/arm/include/asm/arch-fsl-lsch3/imx-regs.h
diff --git a/arch/arm/cpu/armv8/cache_v8.c b/arch/arm/cpu/armv8/cache_v8.c index 947c386..5d080e0 100644 --- a/arch/arm/cpu/armv8/cache_v8.c +++ b/arch/arm/cpu/armv8/cache_v8.c @@ -86,12 +86,17 @@ void invalidate_dcache_all(void) __asm_invalidate_dcache_all(); }
+void __weak flush_l3_cache(void) +{ +} + /* * Performs a clean & invalidation of the entire data cache at all levels */ void flush_dcache_all(void) { __asm_flush_dcache_all(); + flush_l3_cache(); }
/* @@ -224,7 +229,7 @@ void invalidate_icache_all(void) * Enable dCache & iCache, whether cache is actually enabled * depend on CONFIG_SYS_DCACHE_OFF and CONFIG_SYS_ICACHE_OFF */ -void enable_caches(void) +void __weak enable_caches(void) { icache_enable(); dcache_enable(); diff --git a/arch/arm/cpu/armv8/fsl-lsch3/Makefile b/arch/arm/cpu/armv8/fsl-lsch3/Makefile new file mode 100644 index 0000000..9249537 --- /dev/null +++ b/arch/arm/cpu/armv8/fsl-lsch3/Makefile @@ -0,0 +1,9 @@ +# +# Copyright 2014, Freescale Semiconductor +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y += cpu.o +obj-y += lowlevel.o +obj-y += speed.o diff --git a/arch/arm/cpu/armv8/fsl-lsch3/README b/arch/arm/cpu/armv8/fsl-lsch3/README new file mode 100644 index 0000000..de34a91 --- /dev/null +++ b/arch/arm/cpu/armv8/fsl-lsch3/README @@ -0,0 +1,10 @@ +# +# Copyright 2014 Freescale Semiconductor +# +# SPDX-License-Identifier: GPL-2.0+ +# + +Freescale LayerScape with Chassis Generation 3 + +This architecture supports Freescale ARMv8 SoCs with Chassis generation 3, +for example LS2100A. diff --git a/arch/arm/cpu/armv8/fsl-lsch3/cpu.c b/arch/arm/cpu/armv8/fsl-lsch3/cpu.c new file mode 100644 index 0000000..d28a67a --- /dev/null +++ b/arch/arm/cpu/armv8/fsl-lsch3/cpu.c @@ -0,0 +1,446 @@ +/* + * Copyright 2014 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/system.h> +#include <asm/armv8/mmu.h> +#include <asm/io.h> +#include <asm/arch-fsl-lsch3/immap_lsch3.h> +#include "cpu.h" +#include "speed.h" + +DECLARE_GLOBAL_DATA_PTR; + +#ifndef CONFIG_SYS_DCACHE_OFF +/* + * To start MMU before DDR is available, we create MMU table in SRAM. + * The base address of SRAM is CONFIG_SYS_FSL_OCRAM_BASE. We use three + * levels of translation tables here to cover 40-bit address space. + * We use 4KB granule size, with 40 bits physical address, T0SZ=24 + * Level 0 IA[39], table address @0 + * Level 1 IA[31:30], table address @01000, 0x2000 + * Level 2 IA[29:21], table address @0x3000 + */ + +#define SECTION_SHIFT_L0 39UL +#define SECTION_SHIFT_L1 30UL +#define SECTION_SHIFT_L2 21UL +#define BLOCK_SIZE_L0 0x8000000000UL +#define BLOCK_SIZE_L1 (1 << SECTION_SHIFT_L1) +#define BLOCK_SIZE_L2 (1 << SECTION_SHIFT_L2) +#define CONFIG_SYS_IFC_BASE 0x30000000 +#define CONFIG_SYS_IFC_SIZE 0x10000000 +#define CONFIG_SYS_IFC_BASE2 0x500000000 +#define CONFIG_SYS_IFC_SIZE2 0x100000000 +#define TCR_EL2_PS_40BIT (2 << 16) +#define LSCH3_VA_BITS (40) +#define LSCH3_TCR (TCR_TG0_4K | \ + TCR_EL2_PS_40BIT | \ + TCR_SHARED_NON | \ + TCR_ORGN_NC | \ + TCR_IRGN_NC | \ + TCR_T0SZ(LSCH3_VA_BITS)) + +/* + * Final MMU + * Let's start from the same layout as early MMU and modify as needed. + * IFC regions will be cache-inhibit. + */ +#define FINAL_QBMAN_CACHED_MEM 0x818000000UL +#define FINAL_QBMAN_CACHED_SIZE 0x4000000 + + +static inline void early_mmu_setup(void) +{ + int el; + u64 i; + u64 section_l1t0, section_l1t1, section_l2; + u64 *level0_table = (u64 *)CONFIG_SYS_FSL_OCRAM_BASE; + u64 *level1_table_0 = (u64 *)(CONFIG_SYS_FSL_OCRAM_BASE + 0x1000); + u64 *level1_table_1 = (u64 *)(CONFIG_SYS_FSL_OCRAM_BASE + 0x2000); + u64 *level2_table = (u64 *)(CONFIG_SYS_FSL_OCRAM_BASE + 0x3000); + + + level0_table[0] = + (u64)level1_table_0 | PMD_TYPE_TABLE; + level0_table[1] = + (u64)level1_table_1 | PMD_TYPE_TABLE; + + /* + * set level 1 table 0 to cache_inhibit, covering 0 to 512GB + * set level 1 table 1 to cache enabled, covering 512GB to 1TB + * set level 2 table to cache-inhibit, covering 0 to 1GB + */ + section_l1t0 = 0; + section_l1t1 = BLOCK_SIZE_L0; + section_l2 = 0; + for (i = 0; i < 512; i++) { + set_pgtable_section(level1_table_0, i, section_l1t0, + MT_DEVICE_NGNRNE); + set_pgtable_section(level1_table_1, i, section_l1t1, + MT_NORMAL); + set_pgtable_section(level2_table, i, section_l2, + MT_DEVICE_NGNRNE); + section_l1t0 += BLOCK_SIZE_L1; + section_l1t1 += BLOCK_SIZE_L1; + section_l2 += BLOCK_SIZE_L2; + } + + level1_table_0[0] = + (u64)level2_table | PMD_TYPE_TABLE; + level1_table_0[1] = + 0x40000000 | PMD_SECT_AF | PMD_TYPE_SECT | + PMD_ATTRINDX(MT_DEVICE_NGNRNE); + level1_table_0[2] = + 0x80000000 | PMD_SECT_AF | PMD_TYPE_SECT | + PMD_ATTRINDX(MT_NORMAL); + level1_table_0[3] = + 0xc0000000 | PMD_SECT_AF | PMD_TYPE_SECT | + PMD_ATTRINDX(MT_NORMAL); + + /* Rewrite table to enable cache */ + set_pgtable_section(level2_table, + CONFIG_SYS_FSL_OCRAM_BASE >> SECTION_SHIFT_L2, + CONFIG_SYS_FSL_OCRAM_BASE, + MT_NORMAL); + for (i = CONFIG_SYS_IFC_BASE >> SECTION_SHIFT_L2; + i < (CONFIG_SYS_IFC_BASE + CONFIG_SYS_IFC_SIZE) + >> SECTION_SHIFT_L2; i++) { + section_l2 = i << SECTION_SHIFT_L2; + set_pgtable_section(level2_table, i, + section_l2, MT_NORMAL); + } + + el = current_el(); + if (el == 1) { + asm volatile("dsb sy;isb"); + asm volatile("msr ttbr0_el1, %0" + : : "r" ((u64)level0_table) : "memory"); + asm volatile("msr tcr_el1, %0" + : : "r" (LSCH3_TCR) : "memory"); + asm volatile("msr mair_el1, %0" + : : "r" (MEMORY_ATTRIBUTES) : "memory"); + } else if (el == 2) { + asm volatile("dsb sy;isb"); + asm volatile("msr ttbr0_el2, %0" + : : "r" ((u64)level0_table) : "memory"); + asm volatile("msr tcr_el2, %0" + : : "r" (LSCH3_TCR) : "memory"); + asm volatile("msr mair_el2, %0" + : : "r" (MEMORY_ATTRIBUTES) : "memory"); + } else if (el == 3) { + asm volatile("dsb sy;isb"); + asm volatile("msr ttbr0_el3, %0" + : : "r" ((u64)level0_table) : "memory"); + asm volatile("msr tcr_el3, %0" + : : "r" (LSCH3_TCR) : "memory"); + asm volatile("msr mair_el3, %0" + : : "r" (MEMORY_ATTRIBUTES) : "memory"); + } else { + hang(); + } + set_sctlr(get_sctlr() | CR_M); +} + +/* + * This final tale looks similar to early table, but different in detail. + * These tables are in regular memory. Cache on IFC is disabled. One sub table + * is added to enable cache for QBMan. + */ +static inline void final_mmu_setup(void) +{ + int el; + u64 i, tbl_base, tbl_limit, section_base; + u64 section_l1t0, section_l1t1, section_l2; + u64 *level0_table = (u64 *)gd->arch.tlb_addr; + u64 *level1_table_0 = (u64 *)(gd->arch.tlb_addr + 0x1000); + u64 *level1_table_1 = (u64 *)(gd->arch.tlb_addr + 0x2000); + u64 *level2_table_0 = (u64 *)(gd->arch.tlb_addr + 0x3000); + u64 *level2_table_1 = (u64 *)(gd->arch.tlb_addr + 0x4000); + + + level0_table[0] = + (u64)level1_table_0 | PMD_TYPE_TABLE; + level0_table[1] = + (u64)level1_table_1 | PMD_TYPE_TABLE; + + /* + * set level 1 table 0 to cache_inhibit, covering 0 to 512GB + * set level 1 table 1 to cache enabled, covering 512GB to 1TB + * set level 2 table 0 to cache-inhibit, covering 0 to 1GB + */ + section_l1t0 = 0; + section_l1t1 = BLOCK_SIZE_L0; + section_l2 = 0; + for (i = 0; i < 512; i++) { + set_pgtable_section(level1_table_0, i, section_l1t0, + MT_DEVICE_NGNRNE); + set_pgtable_section(level1_table_1, i, section_l1t1, + MT_NORMAL); + set_pgtable_section(level2_table_0, i, section_l2, + MT_DEVICE_NGNRNE); + section_l1t0 += BLOCK_SIZE_L1; + section_l1t1 += BLOCK_SIZE_L1; + section_l2 += BLOCK_SIZE_L2; + } + + level1_table_0[0] = + (u64)level2_table_0 | PMD_TYPE_TABLE; + level1_table_0[2] = + 0x80000000 | PMD_SECT_AF | PMD_TYPE_SECT | + PMD_ATTRINDX(MT_NORMAL); + level1_table_0[3] = + 0xc0000000 | PMD_SECT_AF | PMD_TYPE_SECT | + PMD_ATTRINDX(MT_NORMAL); + + /* Rewrite table to enable cache */ + set_pgtable_section(level2_table_0, + CONFIG_SYS_FSL_OCRAM_BASE >> SECTION_SHIFT_L2, + CONFIG_SYS_FSL_OCRAM_BASE, + MT_NORMAL); + + /* + * Fill in other part of tables if cache is needed + * If finer granularity than 1GB is needed, sub table + * should be created. + */ + section_base = FINAL_QBMAN_CACHED_MEM & ~(BLOCK_SIZE_L1 - 1); + i = section_base >> SECTION_SHIFT_L1; + level1_table_0[i] = (u64)level2_table_1 | PMD_TYPE_TABLE; + section_l2 = section_base; + for (i = 0; i < 512; i++) { + set_pgtable_section(level2_table_1, i, section_l2, + MT_DEVICE_NGNRNE); + section_l2 += BLOCK_SIZE_L2; + } + tbl_base = FINAL_QBMAN_CACHED_MEM & (BLOCK_SIZE_L1 - 1); + tbl_limit = (FINAL_QBMAN_CACHED_MEM + FINAL_QBMAN_CACHED_SIZE) & + (BLOCK_SIZE_L1 - 1); + for (i = tbl_base >> SECTION_SHIFT_L2; + i < tbl_limit >> SECTION_SHIFT_L2; i++) { + section_l2 = section_base + (i << SECTION_SHIFT_L2); + set_pgtable_section(level2_table_1, i, + section_l2, MT_NORMAL); + } + + /* point TTBR to the new table */ + el = current_el(); + if (el == 1) { + asm volatile("msr ttbr0_el1, %0" + : : "r" ((u64)level0_table) : "memory"); + } else if (el == 2) { + asm volatile("msr ttbr0_el2, %0" + : : "r" ((u64)level0_table) : "memory"); + } else if (el == 3) { + asm volatile("msr ttbr0_el3, %0" + : : "r" ((u64)level0_table) : "memory"); + } else { + hang(); + } + /* + * MMU is already enabled, just need to invalidate TLB to load the + * new table. The new table is compatible with the current table, if + * MMU somehow walks through the new table before invalidation TLB, + * it still works. So we don't need to turn off MMU here. + */ +} + +int arch_cpu_init(void) +{ + icache_enable(); + __asm_invalidate_dcache_all(); + __asm_invalidate_tlb_all(); + early_mmu_setup(); + set_sctlr(get_sctlr() | CR_C); + return 0; +} + +/* + * flush_l3_cache + * Dickens L3 cache can be flushed by transitioning from FAM to SFONLY power + * state, by writing to HP-F P-state request register. + * Fixme: This function should moved to a common file if other SoCs also use + * the same Dickens. + */ +#define HNF0_PSTATE_REQ 0x04200010 +#define HNF1_PSTATE_REQ 0x04210010 +#define HNF2_PSTATE_REQ 0x04220010 +#define HNF3_PSTATE_REQ 0x04230010 +#define HNF4_PSTATE_REQ 0x04240010 +#define HNF5_PSTATE_REQ 0x04250010 +#define HNF6_PSTATE_REQ 0x04260010 +#define HNF7_PSTATE_REQ 0x04270010 +#define HNFPSTAT_MASK (0xFFFFFFFFFFFFFFFC) +#define HNFPSTAT_FAM 0x3 +#define HNFPSTAT_SFONLY 0x01 + +static void hnf_pstate_req(u64 *ptr, u64 state) +{ + int timeout = 1000; + out_le64(ptr, (in_le64(ptr) & HNFPSTAT_MASK) | (state & 0x3)); + ptr++; + /* checking if the transition is completed */ + while (timeout > 0) { + if (((in_le64(ptr) & 0x0c) >> 2) == (state & 0x3)) + break; + udelay(100); + timeout--; + } +} + +void flush_l3_cache(void) +{ + hnf_pstate_req((u64 *)HNF0_PSTATE_REQ, HNFPSTAT_SFONLY); + hnf_pstate_req((u64 *)HNF1_PSTATE_REQ, HNFPSTAT_SFONLY); + hnf_pstate_req((u64 *)HNF2_PSTATE_REQ, HNFPSTAT_SFONLY); + hnf_pstate_req((u64 *)HNF3_PSTATE_REQ, HNFPSTAT_SFONLY); + hnf_pstate_req((u64 *)HNF4_PSTATE_REQ, HNFPSTAT_SFONLY); + hnf_pstate_req((u64 *)HNF5_PSTATE_REQ, HNFPSTAT_SFONLY); + hnf_pstate_req((u64 *)HNF6_PSTATE_REQ, HNFPSTAT_SFONLY); + hnf_pstate_req((u64 *)HNF7_PSTATE_REQ, HNFPSTAT_SFONLY); + hnf_pstate_req((u64 *)HNF0_PSTATE_REQ, HNFPSTAT_FAM); + hnf_pstate_req((u64 *)HNF1_PSTATE_REQ, HNFPSTAT_FAM); + hnf_pstate_req((u64 *)HNF2_PSTATE_REQ, HNFPSTAT_FAM); + hnf_pstate_req((u64 *)HNF3_PSTATE_REQ, HNFPSTAT_FAM); + hnf_pstate_req((u64 *)HNF4_PSTATE_REQ, HNFPSTAT_FAM); + hnf_pstate_req((u64 *)HNF5_PSTATE_REQ, HNFPSTAT_FAM); + hnf_pstate_req((u64 *)HNF6_PSTATE_REQ, HNFPSTAT_FAM); + hnf_pstate_req((u64 *)HNF7_PSTATE_REQ, HNFPSTAT_FAM); +} + +/* + * This function is called from lib/board.c. + * It recreates MMU table in main memory. MMU and d-cache are enabled earlier. + * There is no need to disable d-cache for this operation. + */ +void enable_caches(void) +{ + final_mmu_setup(); + flush_dcache_range(gd->arch.tlb_addr, + gd->arch.tlb_addr + gd->arch.tlb_size); + __asm_invalidate_tlb_all(); +} +#endif + +static inline u32 initiator_type(u32 cluster, int init_id) +{ + struct ccsr_gur *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR); + u32 idx = (cluster >> (init_id * 8)) & TP_CLUSTER_INIT_MASK; + u32 type = in_le32(&gur->tp_ityp[idx]); + + if (type & TP_ITYP_AV) + return type; + + return 0; +} + +u32 cpu_mask(void) +{ + struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR); + int i = 0, count = 0; + u32 cluster, type, mask = 0; + + do { + int j; + cluster = in_le32(&gur->tp_cluster[i].lower); + for (j = 0; j < TP_INIT_PER_CLUSTER; j++) { + type = initiator_type(cluster, j); + if (type) { + if (TP_ITYP_TYPE(type) == TP_ITYP_TYPE_ARM) + mask |= 1 << count; + count++; + } + } + i++; + } while ((cluster & TP_CLUSTER_EOC) != TP_CLUSTER_EOC); + + return mask; +} + +/* + * Return the number of cores on this SOC. + */ +int cpu_numcores(void) +{ + return hweight32(cpu_mask()); +} + +int fsl_qoriq_core_to_cluster(unsigned int core) +{ + struct ccsr_gur __iomem *gur = + (void __iomem *)(CONFIG_SYS_FSL_GUTS_ADDR); + int i = 0, count = 0; + u32 cluster; + + do { + int j; + cluster = in_le32(&gur->tp_cluster[i].lower); + for (j = 0; j < TP_INIT_PER_CLUSTER; j++) { + if (initiator_type(cluster, j)) { + if (count == core) + return i; + count++; + } + } + i++; + } while ((cluster & TP_CLUSTER_EOC) != TP_CLUSTER_EOC); + + return -1; /* cannot identify the cluster */ +} + +u32 fsl_qoriq_core_to_type(unsigned int core) +{ + struct ccsr_gur __iomem *gur = + (void __iomem *)(CONFIG_SYS_FSL_GUTS_ADDR); + int i = 0, count = 0; + u32 cluster, type; + + do { + int j; + cluster = in_le32(&gur->tp_cluster[i].lower); + for (j = 0; j < TP_INIT_PER_CLUSTER; j++) { + type = initiator_type(cluster, j); + if (type) { + if (count == core) + return type; + count++; + } + } + i++; + } while ((cluster & TP_CLUSTER_EOC) != TP_CLUSTER_EOC); + + return -1; /* cannot identify the cluster */ +} + +#ifdef CONFIG_DISPLAY_CPUINFO +int print_cpuinfo(void) +{ + struct sys_info sysinfo; + char buf[32]; + unsigned int i, core; + u32 type; + + get_sys_info(&sysinfo); + puts("Clock Configuration:"); + for_each_cpu(i, core, cpu_numcores(), cpu_mask()) { + if (!(i % 3)) + puts("\n "); + type = TP_ITYP_VER(fsl_qoriq_core_to_type(core)); + printf("CPU%d(%s):%-4s MHz ", core, + type == TY_ITYP_VER_A7 ? "A7 " : + (type == TY_ITYP_VER_A53 ? "A53" : + (type == TY_ITYP_VER_A57 ? "A57" : " ")), + strmhz(buf, sysinfo.freq_processor[core])); + } + printf("\n Bus: %-4s MHz ", + strmhz(buf, sysinfo.freq_systembus)); + printf("DDR: %-4s MHz", strmhz(buf, sysinfo.freq_ddrbus)); + puts("\n"); + + return 0; +} +#endif diff --git a/arch/arm/cpu/armv8/fsl-lsch3/cpu.h b/arch/arm/cpu/armv8/fsl-lsch3/cpu.h new file mode 100644 index 0000000..28544d7 --- /dev/null +++ b/arch/arm/cpu/armv8/fsl-lsch3/cpu.h @@ -0,0 +1,7 @@ +/* + * Copyright 2014, Freescale Semiconductor + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +int fsl_qoriq_core_to_cluster(unsigned int core); diff --git a/arch/arm/cpu/armv8/fsl-lsch3/lowlevel.S b/arch/arm/cpu/armv8/fsl-lsch3/lowlevel.S new file mode 100644 index 0000000..a4d1448 --- /dev/null +++ b/arch/arm/cpu/armv8/fsl-lsch3/lowlevel.S @@ -0,0 +1,65 @@ +/* + * (C) Copyright 2014 Freescale Semiconductor + * + * SPDX-License-Identifier: GPL-2.0+ + * + * Extracted from armv8/start.S + */ + +#include <config.h> +#include <linux/linkage.h> +#include <asm/macro.h> + +ENTRY(lowlevel_init) + /* Initialize GIC Secure Bank Status */ + mov x29, lr /* Save LR */ + + /* Set the SMMU page size in the sACR register */ + ldr x1, =SMMU_BASE + ldr w0, [x1, #0x10] + orr w0, w0, #1 << 16 /* set sACR.pagesize to indicate 64K page */ + str w0, [x1, #0x10] + +#if defined(CONFIG_GICV2) || defined(CONFIG_GICV3) + branch_if_slave x0, 1f + ldr x0, =GICD_BASE + bl gic_init_secure +1: +#ifdef CONFIG_GICV3 + ldr x0, =GICR_BASE + bl gic_init_secure_percpu +#elif defined(CONFIG_GICV2) + ldr x0, =GICD_BASE + ldr x1, =GICC_BASE + bl gic_init_secure_percpu +#endif +#endif + + branch_if_master x0, x1, 1f + + /* + * Slave should wait for master clearing spin table. + * This sync prevent salves observing incorrect + * value of spin table and jumping to wrong place. + */ +#if defined(CONFIG_GICV2) || defined(CONFIG_GICV3) +#ifdef CONFIG_GICV2 + ldr x0, =GICC_BASE +#endif + bl gic_wait_for_interrupt +#endif + + /* + * All processors will enter EL2 and optionally EL1. + */ + bl armv8_switch_to_el2 +#ifdef CONFIG_ARMV8_SWITCH_TO_EL1 + bl armv8_switch_to_el1 +#endif + b 2f + +1: +2: + mov lr, x29 /* Restore LR */ + ret +ENDPROC(lowlevel_init) diff --git a/arch/arm/cpu/armv8/fsl-lsch3/speed.c b/arch/arm/cpu/armv8/fsl-lsch3/speed.c new file mode 100644 index 0000000..dc4a34b --- /dev/null +++ b/arch/arm/cpu/armv8/fsl-lsch3/speed.c @@ -0,0 +1,176 @@ +/* + * 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; + 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; +#else + sys_info->freq_ddrbus = 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; + sys_info->freq_ddrbus *= (in_le32(&gur->rcwsr[0]) >> + FSL_CHASSIS3_RCWSR0_MEM_PLL_RAT_SHIFT) & + FSL_CHASSIS3_RCWSR0_MEM_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; + if (ratio[i] > 4) + freq_c_pll[i] = sysclk * 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); + 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->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; + +#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 dummy) +{ + if (!gd->mem_clk) + get_clocks(); + + 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; + default: + printf("Unsupported clock\n"); + } + return 0; +} diff --git a/arch/arm/cpu/armv8/fsl-lsch3/speed.h b/arch/arm/cpu/armv8/fsl-lsch3/speed.h new file mode 100644 index 0000000..15af5b9 --- /dev/null +++ b/arch/arm/cpu/armv8/fsl-lsch3/speed.h @@ -0,0 +1,7 @@ +/* + * Copyright 2014, Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +void get_sys_info(struct sys_info *sys_info); diff --git a/arch/arm/include/asm/arch-fsl-lsch3/clock.h b/arch/arm/include/asm/arch-fsl-lsch3/clock.h new file mode 100644 index 0000000..831af0b --- /dev/null +++ b/arch/arm/include/asm/arch-fsl-lsch3/clock.h @@ -0,0 +1,23 @@ +/* + * Copyright 2014 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + * + */ + +#ifndef __ASM_ARCH_FSL_LSCH3_CLOCK_H_ +#define __ASM_ARCH_FSL_LSCH3_CLOCK_H_ + +#include <common.h> + +enum mxc_clock { + MXC_ARM_CLK = 0, + MXC_BUS_CLK, + MXC_UART_CLK, + MXC_ESDHC_CLK, + MXC_I2C_CLK, +}; + +unsigned int mxc_get_clock(enum mxc_clock clk); + +#endif /* __ASM_ARCH_FSL_LSCH3_CLOCK_H_ */ diff --git a/arch/arm/include/asm/arch-fsl-lsch3/config.h b/arch/arm/include/asm/arch-fsl-lsch3/config.h new file mode 100644 index 0000000..c987a19 --- /dev/null +++ b/arch/arm/include/asm/arch-fsl-lsch3/config.h @@ -0,0 +1,65 @@ +/* + * Copyright 2014, Freescale Semiconductor + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _ASM_ARMV8_FSL_LSCH3_CONFIG_ +#define _ASM_ARMV8_FSL_LSCH3_CONFIG_ + +#include <fsl_ddrc_version.h> + +#define CONFIG_SYS_FSL_OCRAM_BASE 0x18000000 /* initial RAM */ +/* Link Definitions */ +#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_FSL_OCRAM_BASE + 0xfff0) + +#define CONFIG_SYS_IMMR 0x01000000 +#define CONFIG_SYS_FSL_DDR_ADDR (CONFIG_SYS_IMMR + 0x00080000) +#define CONFIG_SYS_FSL_DDR2_ADDR (CONFIG_SYS_IMMR + 0x00090000) +#define CONFIG_SYS_FSL_GUTS_ADDR (CONFIG_SYS_IMMR + 0x00E00000) +#define CONFIG_SYS_FSL_PMU_ADDR (CONFIG_SYS_IMMR + 0x00E30000) +#define CONFIG_SYS_FSL_CH3_CLK_GRPA_ADDR (CONFIG_SYS_IMMR + 0x00300000) +#define CONFIG_SYS_FSL_CH3_CLK_GRPB_ADDR (CONFIG_SYS_IMMR + 0x00310000) +#define CONFIG_SYS_FSL_CH3_CLK_CTRL_ADDR (CONFIG_SYS_IMMR + 0x00370000) +#define CONFIG_SYS_IFC_ADDR (CONFIG_SYS_IMMR + 0x01240000) +#define CONFIG_SYS_NS16550_COM1 (CONFIG_SYS_IMMR + 0x011C0500) +#define CONFIG_SYS_NS16550_COM2 (CONFIG_SYS_IMMR + 0x011C0600) +#define CONFIG_SYS_FSL_TIMER_ADDR 0x023d0000 +#define CONFIG_SYS_FSL_PMU_CLTBENR (CONFIG_SYS_FSL_PMU_ADDR + \ + 0x18A0) + +#define I2C1_BASE_ADDR (CONFIG_SYS_IMMR + 0x01000000) +#define I2C2_BASE_ADDR (CONFIG_SYS_IMMR + 0x01010000) +#define I2C3_BASE_ADDR (CONFIG_SYS_IMMR + 0x01020000) +#define I2C4_BASE_ADDR (CONFIG_SYS_IMMR + 0x01030000) + +/* Generic Interrupt Controller Definitions */ +#define GICD_BASE 0x06000000 +#define GICR_BASE 0x06100000 + +/* SMMU Defintions */ +#define SMMU_BASE 0x05000000 /* GR0 Base */ + +/* DDR */ +#define CONFIG_SYS_FSL_DDR_LE +#define CONFIG_VERY_BIG_RAM +#define CONFIG_SYS_FSL_DDRC_ARM_GEN3 /* Enable Freescale ARM DDR3 driver */ +#define CONFIG_SYS_FSL_DDR /* Freescale DDR driver */ +#define CONFIG_SYS_LS2_DDR_BLOCK1_SIZE ((phys_size_t)2 << 30) +#define CONFIG_MAX_MEM_MAPPED CONFIG_SYS_LS2_DDR_BLOCK1_SIZE +#define CONFIG_SYS_FSL_DDR_VER FSL_DDR_VER_5_0 + + +/* IFC */ +#define CONFIG_SYS_FSL_IFC_LE + +#ifdef CONFIG_LS2100A +#define CONFIG_MAX_CPUS 16 +#define CONFIG_SYS_FSL_IFC_BANK_COUNT 8 +#define CONFIG_NUM_DDR_CONTROLLERS 2 +#define CONFIG_SYS_FSL_CLUSTER_CLOCKS { 1, 1, 4, 4 } +#else +#error SoC not defined +#endif + +#endif /* _ASM_ARMV8_FSL_LSCH3_CONFIG_ */ diff --git a/arch/arm/include/asm/arch-fsl-lsch3/gpio.h b/arch/arm/include/asm/arch-fsl-lsch3/gpio.h new file mode 100644 index 0000000..f23a78c --- /dev/null +++ b/arch/arm/include/asm/arch-fsl-lsch3/gpio.h @@ -0,0 +1,9 @@ +/* + * Copyright 2014, Freescale Semiconductor + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _ASM_ARMV8_FSL_LSCH3_GPIO_H_ +#define _ASM_ARMV8_FSL_LSCH3_GPIO_H_ +#endif /* _ASM_ARMV8_FSL_LSCH3_GPIO_H_ */ diff --git a/arch/arm/include/asm/arch-fsl-lsch3/immap_lsch3.h b/arch/arm/include/asm/arch-fsl-lsch3/immap_lsch3.h new file mode 100644 index 0000000..18e66bd --- /dev/null +++ b/arch/arm/include/asm/arch-fsl-lsch3/immap_lsch3.h @@ -0,0 +1,116 @@ +/* + * LayerScape Internal Memory Map + * + * Copyright 2014 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __ARCH_FSL_LSCH3_IMMAP_H +#define __ARCH_FSL_LSCH3_IMMAP_H_ + +/* This is chassis generation 3 */ + +struct sys_info { + unsigned long freq_processor[CONFIG_MAX_CPUS]; + unsigned long freq_systembus; + unsigned long freq_ddrbus; + unsigned long freq_localbus; + unsigned long freq_qe; +#ifdef CONFIG_SYS_DPAA_FMAN + unsigned long freq_fman[CONFIG_SYS_NUM_FMAN]; +#endif +#ifdef CONFIG_SYS_DPAA_QBMAN + unsigned long freq_qman; +#endif +#ifdef CONFIG_SYS_DPAA_PME + unsigned long freq_pme; +#endif +}; + +/* Global Utilities Block */ +struct ccsr_gur { + u32 porsr1; /* POR status 1 */ + u32 porsr2; /* POR status 2 */ + u8 res_008[0x20-0x8]; + u32 gpporcr1; /* General-purpose POR configuration */ + u32 gpporcr2; /* General-purpose POR configuration 2 */ + u32 dcfg_fusesr; /* Fuse status register */ + u32 gpporcr3; + u32 gpporcr4; + u8 res_034[0x70-0x34]; + u32 devdisr; /* Device disable control */ + u32 devdisr2; /* Device disable control 2 */ + u32 devdisr3; /* Device disable control 3 */ + u32 devdisr4; /* Device disable control 4 */ + u32 devdisr5; /* Device disable control 5 */ + u32 devdisr6; /* Device disable control 6 */ + u32 devdisr7; /* Device disable control 7 */ + u8 res_08c[0x90-0x8c]; + u32 coredisru; /* uppper portion for support of 64 cores */ + u32 coredisrl; /* lower portion for support of 64 cores */ + u8 res_098[0xa0-0x98]; + u32 pvr; /* Processor version */ + u32 svr; /* System version */ + u32 mvr; /* Manufacturing version */ + u8 res_0ac[0x100-0xac]; + u32 rcwsr[32]; /* Reset control word status */ + +#define FSL_CHASSIS3_RCWSR0_SYS_PLL_RAT_SHIFT 2 +#define FSL_CHASSIS3_RCWSR0_SYS_PLL_RAT_MASK 0x1f +#define FSL_CHASSIS3_RCWSR0_MEM_PLL_RAT_SHIFT 10 +#define FSL_CHASSIS3_RCWSR0_MEM_PLL_RAT_MASK 0x3f + u8 res_180[0x200-0x180]; + u32 scratchrw[32]; /* Scratch Read/Write */ + u8 res_280[0x300-0x280]; + u32 scratchw1r[4]; /* Scratch Read (Write once) */ + u8 res_310[0x400-0x310]; + u32 bootlocptrl; /* Boot location pointer low-order addr */ + u32 bootlocptrh; /* Boot location pointer high-order addr */ + u8 res_408[0x500-0x408]; + u8 res_500[0x740-0x500]; /* add more registers when needed */ + u32 tp_ityp[64]; /* Topology Initiator Type Register */ + struct { + u32 upper; + u32 lower; + } tp_cluster[3]; /* Core Cluster n Topology Register */ + u8 res_858[0x1000-0x858]; +}; + +#define TP_ITYP_AV 0x00000001 /* Initiator available */ +#define TP_ITYP_TYPE(x) (((x) & 0x6) >> 1) /* Initiator Type */ +#define TP_ITYP_TYPE_ARM 0x0 +#define TP_ITYP_TYPE_PPC 0x1 /* PowerPC */ +#define TP_ITYP_TYPE_OTHER 0x2 /* StarCore DSP */ +#define TP_ITYP_TYPE_HA 0x3 /* HW Accelerator */ +#define TP_ITYP_THDS(x) (((x) & 0x18) >> 3) /* # threads */ +#define TP_ITYP_VER(x) (((x) & 0xe0) >> 5) /* Initiator Version */ +#define TY_ITYP_VER_A7 0x1 +#define TY_ITYP_VER_A53 0x2 +#define TY_ITYP_VER_A57 0x3 + +#define TP_CLUSTER_EOC 0x80000000 /* end of clusters */ +#define TP_CLUSTER_INIT_MASK 0x0000003f /* initiator mask */ +#define TP_INIT_PER_CLUSTER 4 + +struct ccsr_clk_cluster_group { + struct { + u8 res_00[0x10]; + u32 csr; + u8 res_14[0x20-0x14]; + } hwncsr[3]; + u8 res_60[0x80-0x60]; + struct { + u32 gsr; + u8 res_84[0xa0-0x84]; + } pllngsr[3]; + u8 res_e0[0x100-0xe0]; +}; + +struct ccsr_clk_ctrl { + struct { + u32 csr; /* core cluster n clock control status */ + u8 res_04[0x20-0x04]; + } clkcncsr[8]; +}; +#endif /* __ARCH_FSL_LSCH3_IMMAP_H */ diff --git a/arch/arm/include/asm/arch-fsl-lsch3/imx-regs.h b/arch/arm/include/asm/arch-fsl-lsch3/imx-regs.h new file mode 100644 index 0000000..8f00535 --- /dev/null +++ b/arch/arm/include/asm/arch-fsl-lsch3/imx-regs.h @@ -0,0 +1,13 @@ +/* + * Copyright 2014 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + * + */ + +#ifndef __ASM_ARCH_FSL_LSCH3_IMX_REGS_H_ +#define __ASM_ARCH_FSL_LSCH3_IMX_REGS_H_ + +#define I2C_QUIRK_REG /* enable 8-bit driver */ + +#endif /* __ASM_ARCH_FSL_LSCH3_IMX_REGS_H_ */ diff --git a/arch/arm/include/asm/config.h b/arch/arm/include/asm/config.h index 2a20a77..d3433da 100644 --- a/arch/arm/include/asm/config.h +++ b/arch/arm/include/asm/config.h @@ -17,4 +17,8 @@ #define CONFIG_STATIC_RELA #endif
+#ifdef CONFIG_FSL_LSCH3 +#include <asm/arch-fsl-lsch3/config.h> +#endif + #endif diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h index 74ee9a4..d51ba66 100644 --- a/arch/arm/include/asm/system.h +++ b/arch/arm/include/asm/system.h @@ -78,6 +78,8 @@ void gic_send_sgi(unsigned long sgino); void wait_for_wakeup(void); void smp_kick_all_cpus(void);
+void flush_l3_cache(void); + #endif /* __ASSEMBLY__ */
#else /* CONFIG_ARM64 */ diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c index 48468d7..c14797c 100644 --- a/drivers/i2c/mxc_i2c.c +++ b/drivers/i2c/mxc_i2c.c @@ -429,6 +429,11 @@ static void * const i2c_bases[] = { (void *)I2C3_BASE_ADDR #elif defined(CONFIG_VF610) (void *)I2C0_BASE_ADDR +#elif defined(CONFIG_FSL_LSCH3) + (void *)I2C1_BASE_ADDR, + (void *)I2C2_BASE_ADDR, + (void *)I2C3_BASE_ADDR, + (void *)I2C4_BASE_ADDR #else #error "architecture not supported" #endif diff --git a/include/common.h b/include/common.h index 232136c..a42d6d2 100644 --- a/include/common.h +++ b/include/common.h @@ -693,9 +693,6 @@ ulong get_PERCLK3(void); ulong get_bus_freq (ulong); int get_serial_clock(void);
-#if defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx) -ulong get_ddr_freq(ulong); -#endif #if defined(CONFIG_MPC85xx) typedef MPC85xx_SYS_INFO sys_info_t; void get_sys_info ( sys_info_t * ); @@ -711,6 +708,8 @@ static inline ulong get_ddr_freq(ulong dummy) { return get_bus_freq(dummy); } +#else +ulong get_ddr_freq(ulong); #endif
#if defined(CONFIG_4xx)