@@ -4520,6 +4520,33 @@ within that device.
window->master inbound window->master LAW->the ucode address in
master's memory space.
+Freescale Layerscape Management Complex Firmware Support:
+---------------------------------------------------------
+The Freescale Layerscape Management Complex (MC) supports the loading of
+"firmware".
+This firmware often needs to be loaded during U-Boot booting, so macros
+are used to identify the storage device (NOR flash, SPI, etc) and the address
+within that device.
+
+- CONFIG_FSL_MC_ENET
+ Enable the MC driver for Layerscape SoCs.
+
+- CONFIG_SYS_LS_MC_FW_ADDR
+ The address in the storage device where the firmware is located. The
+ meaning of this address depends on which CONFIG_SYS_LS_MC_FW_IN_xxx macro
+ is also specified.
+
+- CONFIG_SYS_LS_MC_FW_LENGTH
+ The maximum possible size of the firmware. The firmware binary format
+ has a field that specifies the actual size of the firmware, but it
+ might not be possible to read any part of the firmware unless some
+ local storage is allocated to hold the entire firmware first.
+
+- CONFIG_SYS_LS_MC_FW_IN_NOR
+ Specifies that MC firmware is located in NOR flash, mapped as
+ normal addressable memory via the LBC. CONFIG_SYS_LS_MC_FW_ADDR is the
+ virtual address in NOR flash.
+
Building the Software:
======================
@@ -12,6 +12,7 @@
#include <asm/arch-fsl-lsch3/immap_lsch3.h>
#include "cpu.h"
#include "speed.h"
+#include <fsl_mc.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -463,3 +464,13 @@ int print_cpuinfo(void)
return 0;
}
#endif
+
+int cpu_eth_init(bd_t *bis)
+{
+ int error = 0;
+
+#ifdef CONFIG_FSL_MC_ENET
+ error = mc_init(bis);
+#endif
+ return error;
+}
@@ -63,3 +63,4 @@ obj-$(CONFIG_XILINX_EMACLITE) += xilinx_emaclite.o
obj-$(CONFIG_XILINX_LL_TEMAC) += xilinx_ll_temac.o xilinx_ll_temac_mdio.o \
xilinx_ll_temac_fifo.o xilinx_ll_temac_sdma.o
obj-$(CONFIG_ZYNQ_GEM) += zynq_gem.o
+obj-$(CONFIG_FSL_MC_ENET) += fsl_mc/
new file mode 100644
@@ -0,0 +1,9 @@
+#
+# Copyright 2014 Freescale Semiconductor, Inc.
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+# Layerscape MC driver
+obj-y += mc.o
+
new file mode 100644
@@ -0,0 +1,132 @@
+/*
+ * Copyright (C) 2014 Freescale Semiconductor
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+#include <errno.h>
+#include <asm/io.h>
+#include <fsl_mc.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/**
+ * Upload MC firmware or DPL image from NOR flash to DDR
+ */
+static int mc_upload_nor_image(const char *title,
+ u64 image_addr, u32 image_size, u64 mc_ram_addr)
+{
+ debug("%s copied to address %p\n", title, (void *)mc_ram_addr);
+ memcpy((void *)mc_ram_addr, (void *)image_addr, image_size);
+ return 0;
+}
+
+int mc_init(bd_t *bis)
+{
+ int error = 0;
+ int timeout = 200000;
+ struct mc_ccsr_registers __iomem *mc_ccsr_regs = MC_CCSR_BASE_ADDR;
+ u64 mc_ram_addr;
+ u32 dpl_offset;
+
+ BUILD_BUG_ON(CONFIG_SYS_LS_MC_FW_LENGTH % 4 != 0);
+
+ if (gd->bd->bi_dram[1].start) {
+ mc_ram_addr =
+ gd->bd->bi_dram[1].start + gd->bd->bi_dram[1].size;
+ } else {
+ mc_ram_addr =
+ gd->bd->bi_dram[0].start + gd->bd->bi_dram[0].size;
+ }
+
+ /*
+ * Management Complex cores should be held at reset out of POR.
+ * U-boot should be the first software to touch MC. To be safe,
+ * we reset all cores again by setting GCR1 to 0. It doesn't do
+ * anything if they are held at reset. After we setup the firmware
+ * we kick off MC by deasserting the reset bit for core 0, and
+ * deasserting the reset bits for Command Portal Managers.
+ * The stop bits are not touched here. They are used to stop the
+ * cores when they are active. Setting stop bits doesn't stop the
+ * cores from fetching instructions when they are released from
+ * reset.
+ */
+ out_le32(&mc_ccsr_regs->reg_gcr1, 0);
+ dmb();
+
+ /*TODO: Need to verify here the integrity of firmware image */
+
+#ifdef CONFIG_SYS_LS_MC_FW_IN_NOR
+ mc_upload_nor_image(
+ "MC Firmware",
+ CONFIG_SYS_LS_MC_FW_ADDR,
+ CONFIG_SYS_LS_MC_FW_LENGTH,
+ mc_ram_addr);
+#else
+# error "No CONFIG_SYS_LS_MC_FW_IN_xxx defined"
+#endif
+
+ /*
+ * Load the DPL blob right after the MC firmware in DDR:
+ */
+#ifdef CONFIG_SYS_LS_MC_DPL_IN_NOR
+ mc_upload_nor_image(
+ "MC DPL blob",
+ CONFIG_SYS_LS_MC_DPL_ADDR,
+ CONFIG_SYS_LS_MC_DPL_LENGTH,
+ mc_ram_addr + CONFIG_SYS_LS_MC_FW_LENGTH);
+#else
+# error "No CONFIG_SYS_LS_MC_DPL_IN_xxx defined"
+#endif
+
+ debug("mc_ccsr_regs %p\n", mc_ccsr_regs);
+
+ /*
+ * Tell MC where the MC Firmware image was loaded in DDR:
+ */
+ out_le32(&mc_ccsr_regs->reg_mcfbalr, (u32)mc_ram_addr);
+ out_le32(&mc_ccsr_regs->reg_mcfbahr, (u32)((u64)mc_ram_addr >> 32));
+ out_le32(&mc_ccsr_regs->reg_mcfapr, MCFAPR_BYPASS_ICID_MASK);
+
+ /*
+ * Tell MC where the DPL blob was loaded in DDR, by indicating
+ * its offset relative to the beginning of the DDR block
+ * allocated to the MC firmware.
+ *
+ * NOTE: bits [31:2] of this offset need to be stored in bits [29:0] of
+ * the GSR MC CCSR register. So, this offset is assumed to be 4-byte
+ * aligned.
+ * Care must be taken not to write 1s into bits 31 and 30 of the GSR in
+ * this case as the SoC COP or PIC will be signaled.
+ */
+ BUILD_BUG_ON((u64)CONFIG_SYS_LS_MC_FW_LENGTH > 0xFFFFFFFFULL);
+ dpl_offset = CONFIG_SYS_LS_MC_FW_LENGTH;
+ BUG_ON((dpl_offset & 0x3) != 0);
+ out_le32(&mc_ccsr_regs->reg_gsr, dpl_offset >> 2);
+
+ /*
+ * Deassert reset and release MC core 0 to run
+ */
+ out_le32(&mc_ccsr_regs->reg_gcr1, GCR1_P1_DE_RST | GCR1_M_ALL_DE_RST);
+ dmb();
+ debug("Polling mc_ccsr_regs->reg_gsr ...\n");
+
+ while ((in_le32(&mc_ccsr_regs->reg_gsr) & GSR_FS_MASK) != 0x1) {
+ udelay(1000); /* throttle polling */
+ if (timeout-- <= 0)
+ break;
+ }
+
+ if (timeout <= 0) {
+ printf("%s: timeout booting management complex firmware\n",
+ __func__);
+
+ /* TODO: Get an error status from an MC CCSR register */
+ error = -ETIMEDOUT;
+ goto out;
+ }
+
+ printf("Management complex booted\n");
+out:
+ return error;
+}
+
new file mode 100644
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2014 Freescale Semiconductor
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __FSL_MC_H__
+#define __FSL_MC_H__
+
+#include <common.h>
+
+#define MC_CCSR_BASE_ADDR \
+ ((struct mc_ccsr_registers __iomem *)0x8340000)
+
+#define BIT(x) (1 << (x))
+#define GCR1_P1_STOP BIT(31)
+#define GCR1_P2_STOP BIT(30)
+#define GCR1_P1_DE_RST BIT(23)
+#define GCR1_P2_DE_RST BIT(22)
+#define GCR1_M1_DE_RST BIT(15)
+#define GCR1_M2_DE_RST BIT(14)
+#define GCR1_M_ALL_DE_RST (GCR1_M1_DE_RST | GCR1_M2_DE_RST)
+#define GSR_FS_MASK 0xffff
+#define MCFAPR_PL_MASK (0x1 << 18)
+#define MCFAPR_BMT_MASK (0x1 << 17)
+#define MCFAPR_BYPASS_ICID_MASK \
+ (MCFAPR_PL_MASK | MCFAPR_BMT_MASK)
+
+#define SOC_MC_PORTALS_BASE_ADDR ((void __iomem *)0x00080C000000)
+#define SOC_MC_PORTAL_STRIDE 0x10000
+
+#define SOC_MC_PORTAL_ADDR(_portal_id) \
+ ((void __iomem *)((uintptr_t)SOC_MC_PORTALS_BASE_ADDR + \
+ (_portal_id) * SOC_MC_PORTAL_STRIDE))
+
+struct mc_ccsr_registers {
+ u32 reg_gcr1;
+ u32 reserved1;
+ u32 reg_gsr;
+ u32 reserved2;
+ u32 reg_sicbalr;
+ u32 reg_sicbahr;
+ u32 reg_sicapr;
+ u32 reserved3;
+ u32 reg_mcfbalr;
+ u32 reg_mcfbahr;
+ u32 reg_mcfapr;
+ u32 reserved4[0x2f1];
+ u32 reg_psr;
+ u32 reserved5;
+ u32 reg_brr[2];
+ u32 reserved6[0x80];
+ u32 reg_error[];
+};
+
+int mc_init(bd_t *bis);
+
+#endif
+