diff options
Diffstat (limited to 'arch/arm/cpu')
| -rw-r--r-- | arch/arm/cpu/armv7/ls102xa/Makefile | 4 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/ls102xa/fdt.c | 21 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/ls102xa/psci.S | 126 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/sunxi/psci_sun6i.S | 22 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/sunxi/psci_sun7i.S | 22 | ||||
| -rw-r--r-- | arch/arm/cpu/armv8/fsl-lsch3/README | 25 | ||||
| -rw-r--r-- | arch/arm/cpu/armv8/fsl-lsch3/cpu.c | 64 | ||||
| -rw-r--r-- | arch/arm/cpu/armv8/fsl-lsch3/fdt.c | 114 | ||||
| -rw-r--r-- | arch/arm/cpu/armv8/fsl-lsch3/speed.c | 2 | ||||
| -rw-r--r-- | arch/arm/cpu/armv8/start.S | 8 |
10 files changed, 337 insertions, 71 deletions
diff --git a/arch/arm/cpu/armv7/ls102xa/Makefile b/arch/arm/cpu/armv7/ls102xa/Makefile index 2e6a20757f..2d55782749 100644 --- a/arch/arm/cpu/armv7/ls102xa/Makefile +++ b/arch/arm/cpu/armv7/ls102xa/Makefile @@ -12,3 +12,7 @@ obj-y += fsl_epu.o obj-$(CONFIG_OF_LIBFDT) += fdt.o obj-$(CONFIG_SYS_HAS_SERDES) += fsl_ls1_serdes.o ls102xa_serdes.o obj-$(CONFIG_SPL) += spl.o + +ifdef CONFIG_ARMV7_PSCI +obj-y += psci.o +endif diff --git a/arch/arm/cpu/armv7/ls102xa/fdt.c b/arch/arm/cpu/armv7/ls102xa/fdt.c index 71a175392f..e01d911780 100644 --- a/arch/arm/cpu/armv7/ls102xa/fdt.c +++ b/arch/arm/cpu/armv7/ls102xa/fdt.c @@ -29,29 +29,30 @@ void ft_fixup_enet_phy_connect_type(void *fdt) char phy[16]; int phy_node; int i = 0; - int enet_id = 0; uint32_t ph; while ((dev = eth_get_dev_by_index(i++)) != NULL) { - if (strstr(dev->name, "eTSEC1")) - enet_id = 0; - else if (strstr(dev->name, "eTSEC2")) - enet_id = 1; - else if (strstr(dev->name, "eTSEC3")) - enet_id = 2; - else + if (strstr(dev->name, "eTSEC1")) { + strcpy(enet, "ethernet0"); + strcpy(phy, "enet0_rgmii_phy"); + } else if (strstr(dev->name, "eTSEC2")) { + strcpy(enet, "ethernet1"); + strcpy(phy, "enet1_rgmii_phy"); + } else if (strstr(dev->name, "eTSEC3")) { + strcpy(enet, "ethernet2"); + strcpy(phy, "enet2_rgmii_phy"); + } else { continue; + } priv = dev->priv; if (priv->flags & TSEC_SGMII) continue; - sprintf(enet, "ethernet%d", enet_id); enet_path = fdt_get_alias(fdt, enet); if (!enet_path) continue; - sprintf(phy, "enet%d_rgmii_phy", enet_id); phy_path = fdt_get_alias(fdt, phy); if (!phy_path) continue; diff --git a/arch/arm/cpu/armv7/ls102xa/psci.S b/arch/arm/cpu/armv7/ls102xa/psci.S new file mode 100644 index 0000000000..cf5cd48bcb --- /dev/null +++ b/arch/arm/cpu/armv7/ls102xa/psci.S @@ -0,0 +1,126 @@ +/* + * Copyright 2015 Freescale Semiconductor, Inc. + * Author: Wang Dongsheng <dongsheng.wang@freescale.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <config.h> +#include <linux/linkage.h> + +#include <asm/armv7.h> +#include <asm/arch-armv7/generictimer.h> +#include <asm/psci.h> + +#define SCFG_CORE0_SFT_RST 0x130 +#define SCFG_CORESRENCR 0x204 + +#define DCFG_CCSR_BRR 0x0E4 +#define DCFG_CCSR_SCRATCHRW1 0x200 + + .pushsection ._secure.text, "ax" + + .arch_extension sec + +#define ONE_MS (GENERIC_TIMER_CLK / 1000) +#define RESET_WAIT (30 * ONE_MS) + + @ r1 = target CPU + @ r2 = target PC +.globl psci_cpu_on +psci_cpu_on: + push {lr} + + @ Clear and Get the correct CPU number + @ r1 = 0xf01 + and r1, r1, #0xff + + mov r0, r1 + bl psci_get_cpu_stack_top + str r2, [r0] + dsb + + @ Get DCFG base address + movw r4, #(CONFIG_SYS_FSL_GUTS_ADDR & 0xffff) + movt r4, #(CONFIG_SYS_FSL_GUTS_ADDR >> 16) + + @ Detect target CPU state + ldr r2, [r4, #DCFG_CCSR_BRR] + rev r2, r2 + lsr r2, r2, r1 + ands r2, r2, #1 + beq holdoff_release + + @ Reset target CPU + @ Get SCFG base address + movw r0, #(CONFIG_SYS_FSL_SCFG_ADDR & 0xffff) + movt r0, #(CONFIG_SYS_FSL_SCFG_ADDR >> 16) + + @ Enable CORE Soft Reset + movw r5, #0 + movt r5, #(1 << 15) + rev r5, r5 + str r5, [r0, #SCFG_CORESRENCR] + + @ Get CPUx offset register + mov r6, #0x4 + mul r6, r6, r1 + add r2, r0, r6 + + @ Do reset on target CPU + movw r5, #0 + movt r5, #(1 << 15) + rev r5, r5 + str r5, [r2, #SCFG_CORE0_SFT_RST] + + @ Wait target CPU up + timer_wait r2, RESET_WAIT + + @ Disable CORE soft reset + mov r5, #0 + str r5, [r0, #SCFG_CORESRENCR] + +holdoff_release: + @ Release on target CPU + ldr r2, [r4, #DCFG_CCSR_BRR] + mov r6, #1 + lsl r6, r6, r1 @ 32 bytes per CPU + + rev r6, r6 + orr r2, r2, r6 + str r2, [r4, #DCFG_CCSR_BRR] + + @ Set secondary boot entry + ldr r6, =psci_cpu_entry + rev r6, r6 + str r6, [r4, #DCFG_CCSR_SCRATCHRW1] + + isb + dsb + + @ Return + mov r0, #ARM_PSCI_RET_SUCCESS + + pop {lr} + bx lr + +.globl psci_cpu_off +psci_cpu_off: + bl psci_cpu_off_common + +1: wfi + b 1b + +.globl psci_arch_init +psci_arch_init: + mov r6, lr + + bl psci_get_cpu_id + bl psci_get_cpu_stack_top + mov sp, r0 + + bx r6 + + .globl psci_text_end +psci_text_end: + .popsection diff --git a/arch/arm/cpu/armv7/sunxi/psci_sun6i.S b/arch/arm/cpu/armv7/sunxi/psci_sun6i.S index d4cb51e044..4ff46e4fc0 100644 --- a/arch/arm/cpu/armv7/sunxi/psci_sun6i.S +++ b/arch/arm/cpu/armv7/sunxi/psci_sun6i.S @@ -18,6 +18,8 @@ */ #include <config.h> + +#include <asm/arch-armv7/generictimer.h> #include <asm/gic.h> #include <asm/macro.h> #include <asm/psci.h> @@ -43,26 +45,6 @@ #define GICD_BASE 0x1c81000 #define GICC_BASE 0x1c82000 -.macro timer_wait reg, ticks - @ Program CNTP_TVAL - movw \reg, #(\ticks & 0xffff) - movt \reg, #(\ticks >> 16) - mcr p15, 0, \reg, c14, c2, 0 - isb - @ Enable physical timer, mask interrupt - mov \reg, #3 - mcr p15, 0, \reg, c14, c2, 1 - @ Poll physical timer until ISTATUS is on -1: isb - mrc p15, 0, \reg, c14, c2, 1 - ands \reg, \reg, #4 - bne 1b - @ Disable timer - mov \reg, #0 - mcr p15, 0, \reg, c14, c2, 1 - isb -.endm - .globl psci_fiq_enter psci_fiq_enter: push {r0-r12} diff --git a/arch/arm/cpu/armv7/sunxi/psci_sun7i.S b/arch/arm/cpu/armv7/sunxi/psci_sun7i.S index bbfeec8ba8..e15d587f29 100644 --- a/arch/arm/cpu/armv7/sunxi/psci_sun7i.S +++ b/arch/arm/cpu/armv7/sunxi/psci_sun7i.S @@ -18,6 +18,8 @@ */ #include <config.h> + +#include <asm/arch-armv7/generictimer.h> #include <asm/gic.h> #include <asm/macro.h> #include <asm/psci.h> @@ -43,26 +45,6 @@ #define GICD_BASE 0x1c81000 #define GICC_BASE 0x1c82000 -.macro timer_wait reg, ticks - @ Program CNTP_TVAL - movw \reg, #(\ticks & 0xffff) - movt \reg, #(\ticks >> 16) - mcr p15, 0, \reg, c14, c2, 0 - isb - @ Enable physical timer, mask interrupt - mov \reg, #3 - mcr p15, 0, \reg, c14, c2, 1 - @ Poll physical timer until ISTATUS is on -1: isb - mrc p15, 0, \reg, c14, c2, 1 - ands \reg, \reg, #4 - bne 1b - @ Disable timer - mov \reg, #0 - mcr p15, 0, \reg, c14, c2, 1 - isb -.endm - .globl psci_fiq_enter psci_fiq_enter: push {r0-r12} diff --git a/arch/arm/cpu/armv8/fsl-lsch3/README b/arch/arm/cpu/armv8/fsl-lsch3/README index 37f07fbb76..3c15479315 100644 --- a/arch/arm/cpu/armv8/fsl-lsch3/README +++ b/arch/arm/cpu/armv8/fsl-lsch3/README @@ -9,6 +9,31 @@ Freescale LayerScape with Chassis Generation 3 This architecture supports Freescale ARMv8 SoCs with Chassis generation 3, for example LS2085A. +DDR Layout +============ +Entire DDR region splits into two regions. + - Region 1 is at address 0x8000_0000 to 0xffff_ffff. + - Region 2 is at 0x80_8000_0000 to the top of total memory, + for example 16GB, 0x83_ffff_ffff. + +All DDR memory is marked as cache-enabled. + +When MC and Debug server is enabled, they carve 512MB away from the high +end of DDR. For example, if the total DDR is 16GB, it shrinks to 15.5GB +with MC and Debug server enabled. Linux only sees 15.5GB. + +The reserved 512MB layout looks like + + +---------------+ <-- top/end of memory + | 256MB | debug server + +---------------+ + | 256MB | MC + +---------------+ + | ... | + +MC requires the memory to be aligned with 512MB, so even debug server is +not enabled, 512MB is reserved, not 256MB. + Flash Layout ============ diff --git a/arch/arm/cpu/armv8/fsl-lsch3/cpu.c b/arch/arm/cpu/armv8/fsl-lsch3/cpu.c index 67145778b9..d02c0beef9 100644 --- a/arch/arm/cpu/armv8/fsl-lsch3/cpu.c +++ b/arch/arm/cpu/armv8/fsl-lsch3/cpu.c @@ -9,6 +9,7 @@ #include <asm/system.h> #include <asm/armv8/mmu.h> #include <asm/io.h> +#include <asm/arch-fsl-lsch3/soc.h> #include <asm/arch-fsl-lsch3/immap_lsch3.h> #include <fsl_debug_server.h> #include <fsl-mc/fsl_mc.h> @@ -22,6 +23,35 @@ DECLARE_GLOBAL_DATA_PTR; +static struct cpu_type cpu_type_list[] = { +#ifdef CONFIG_LS2085A + CPU_TYPE_ENTRY(LS2085, LS2085, 8), + CPU_TYPE_ENTRY(LS2080, LS2080, 8), + CPU_TYPE_ENTRY(LS2045, LS2045, 4), +#endif +}; + +void cpu_name(char *name) +{ + struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR); + unsigned int i, svr, ver; + + svr = in_le32(&gur->svr); + ver = SVR_SOC_VER(svr); + + for (i = 0; i < ARRAY_SIZE(cpu_type_list); i++) + if ((cpu_type_list[i].soc_ver & SVR_WO_E) == ver) { + strcpy(name, cpu_type_list[i].name); + + if (IS_E_PROCESSOR(svr)) + strcat(name, "E"); + break; + } + + if (i == ARRAY_SIZE(cpu_type_list)) + strcpy(name, "unknown"); +} + #ifndef CONFIG_SYS_DCACHE_OFF /* * To start MMU before DDR is available, we create MMU table in SRAM. @@ -52,6 +82,12 @@ DECLARE_GLOBAL_DATA_PTR; TCR_ORGN_NC | \ TCR_IRGN_NC | \ TCR_T0SZ(LSCH3_VA_BITS)) +#define LSCH3_TCR_FINAL (TCR_TG0_4K | \ + TCR_EL2_PS_40BIT | \ + TCR_SHARED_OUTER | \ + TCR_ORGN_WBWA | \ + TCR_IRGN_WBWA | \ + TCR_T0SZ(LSCH3_VA_BITS)) /* * Final MMU @@ -236,21 +272,8 @@ static inline void final_mmu_setup(void) /* point TTBR to the new table */ el = current_el(); - asm volatile("dsb sy"); - 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(); - } - asm volatile("isb"); - + set_ttbr_tcr_mair(el, (u64)level0_table, LSCH3_TCR_FINAL, + MEMORY_ATTRIBUTES); /* * MMU is already enabled, just need to invalidate TLB to load the * new table. The new table is compatible with the current table, if @@ -380,6 +403,13 @@ int print_cpuinfo(void) unsigned int i, core; u32 type; + puts("SoC: "); + + cpu_name(buf); + printf(" %s (0x%x)\n", buf, in_le32(&gur->svr)); + + memset((u8 *)buf, 0x00, ARRAY_SIZE(buf)); + get_sys_info(&sysinfo); puts("Clock Configuration:"); for_each_cpu(i, core, cpu_numcores(), cpu_mask()) { @@ -394,8 +424,8 @@ int print_cpuinfo(void) } printf("\n Bus: %-4s MHz ", strmhz(buf, sysinfo.freq_systembus)); - printf("DDR: %-4s MHz", strmhz(buf, sysinfo.freq_ddrbus)); - printf(" DP-DDR: %-4s MHz", strmhz(buf, sysinfo.freq_ddrbus2)); + printf("DDR: %-4s MT/s", strmhz(buf, sysinfo.freq_ddrbus)); + printf(" DP-DDR: %-4s MT/s", strmhz(buf, sysinfo.freq_ddrbus2)); puts("\n"); /* Display the RCW, so that no one gets confused as to what RCW diff --git a/arch/arm/cpu/armv8/fsl-lsch3/fdt.c b/arch/arm/cpu/armv8/fsl-lsch3/fdt.c index d37002333c..567c41927a 100644 --- a/arch/arm/cpu/armv8/fsl-lsch3/fdt.c +++ b/arch/arm/cpu/armv8/fsl-lsch3/fdt.c @@ -7,6 +7,7 @@ #include <common.h> #include <libfdt.h> #include <fdt_support.h> +#include <asm/arch-fsl-lsch3/fdt.h> #ifdef CONFIG_FSL_ESDHC #include <fsl_esdhc.h> #endif @@ -58,6 +59,113 @@ void ft_fixup_cpu(void *blob) } #endif +/* + * the burden is on the the caller to not request a count + * exceeding the bounds of the stream_ids[] array + */ +void alloc_stream_ids(int start_id, int count, u32 *stream_ids, int max_cnt) +{ + int i; + + if (count > max_cnt) { + printf("\n%s: ERROR: max per-device stream ID count exceed\n", + __func__); + return; + } + + for (i = 0; i < count; i++) + stream_ids[i] = start_id++; +} + +/* + * This function updates the mmu-masters property on the SMMU + * node as per the SMMU binding-- phandle and list of stream IDs + * for each MMU master. + */ +void append_mmu_masters(void *blob, const char *smmu_path, + const char *master_name, u32 *stream_ids, int count) +{ + u32 phandle; + int smmu_nodeoffset; + int master_nodeoffset; + int i; + + /* get phandle of mmu master device */ + master_nodeoffset = fdt_path_offset(blob, master_name); + if (master_nodeoffset < 0) { + printf("\n%s: ERROR: master not found\n", __func__); + return; + } + phandle = fdt_get_phandle(blob, master_nodeoffset); + if (!phandle) { /* if master has no phandle, create one */ + phandle = fdt_create_phandle(blob, master_nodeoffset); + if (!phandle) { + printf("\n%s: ERROR: unable to create phandle\n", + __func__); + return; + } + } + + /* append it to mmu-masters */ + smmu_nodeoffset = fdt_path_offset(blob, smmu_path); + if (fdt_appendprop_u32(blob, smmu_nodeoffset, "mmu-masters", + phandle) < 0) { + printf("\n%s: ERROR: unable to update SMMU node\n", __func__); + return; + } + + /* for each stream ID, append to mmu-masters */ + for (i = 0; i < count; i++) { + fdt_appendprop_u32(blob, smmu_nodeoffset, "mmu-masters", + stream_ids[i]); + } + + /* fix up #stream-id-cells with stream ID count */ + if (fdt_setprop_u32(blob, master_nodeoffset, "#stream-id-cells", + count) < 0) + printf("\n%s: ERROR: unable to update #stream-id-cells\n", + __func__); +} + + +/* + * The info below summarizes how streamID partitioning works + * for ls2085a and how it is conveyed to the OS via the device tree. + * + * -non-PCI legacy, platform devices (USB, SD/MMC, SATA, DMA) + * -all legacy devices get a unique ICID assigned and programmed in + * their AMQR registers by u-boot + * -u-boot updates the hardware device tree with streamID properties + * for each platform/legacy device (smmu-masters property) + * + * -PCIe + * -for each PCI controller that is active (as per RCW settings), + * u-boot will allocate a range of ICID and convey that to Linux via + * the device tree (smmu-masters property) + * + * -DPAA2 + * -u-boot will allocate a range of ICIDs to be used by the Management + * Complex for containers and will set these values in the MC DPC image. + * -the MC is responsible for allocating and setting up ICIDs + * for all DPAA2 devices. + * + */ +static void fdt_fixup_smmu(void *blob) +{ + int nodeoffset; + + nodeoffset = fdt_path_offset(blob, "/iommu@5000000"); + if (nodeoffset < 0) { + printf("\n%s: WARNING: no SMMU node found\n", __func__); + return; + } + + /* fixup for all PCI controllers */ +#ifdef CONFIG_PCI + fdt_fixup_smmu_pcie(blob); +#endif +} + void ft_cpu_setup(void *blob, bd_t *bd) { #ifdef CONFIG_MP @@ -69,7 +177,13 @@ void ft_cpu_setup(void *blob, bd_t *bd) "clock-frequency", CONFIG_SYS_NS16550_CLK, 1); #endif +#ifdef CONFIG_PCI + ft_pci_setup(blob, bd); +#endif + #if defined(CONFIG_FSL_ESDHC) fdt_fixup_esdhc(blob, bd); #endif + + fdt_fixup_smmu(blob); } diff --git a/arch/arm/cpu/armv8/fsl-lsch3/speed.c b/arch/arm/cpu/armv8/fsl-lsch3/speed.c index cac4f925a4..d9f137cc2d 100644 --- a/arch/arm/cpu/armv8/fsl-lsch3/speed.c +++ b/arch/arm/cpu/armv8/fsl-lsch3/speed.c @@ -180,6 +180,8 @@ 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"); } diff --git a/arch/arm/cpu/armv8/start.S b/arch/arm/cpu/armv8/start.S index e5f2766a4a..e70bed462a 100644 --- a/arch/arm/cpu/armv8/start.S +++ b/arch/arm/cpu/armv8/start.S @@ -115,18 +115,18 @@ apply_a57_core_errata: #ifdef CONFIG_ARM_ERRATA_828024 mrs x0, S3_1_c15_c2_0 /* cpuactlr_el1 */ /* Disable non-allocate hint of w-b-n-a memory type */ - mov x0, #0x1 << 49 + orr x0, x0, #1 << 49 /* Disable write streaming no L1-allocate threshold */ - mov x0, #0x3 << 25 + orr x0, x0, #3 << 25 /* Disable write streaming no-allocate threshold */ - mov x0, #0x3 << 27 + orr x0, x0, #3 << 27 msr S3_1_c15_c2_0, x0 /* cpuactlr_el1 */ #endif #ifdef CONFIG_ARM_ERRATA_826974 mrs x0, S3_1_c15_c2_0 /* cpuactlr_el1 */ /* Disable speculative load execution ahead of a DMB */ - mov x0, #0x1 << 59 + orr x0, x0, #1 << 59 msr S3_1_c15_c2_0, x0 /* cpuactlr_el1 */ #endif |