Add qemu 2.4.0
[kvmfornfv.git] / qemu / roms / u-boot / arch / powerpc / cpu / mpc85xx / cpu_init.c
diff --git a/qemu/roms/u-boot/arch/powerpc/cpu/mpc85xx/cpu_init.c b/qemu/roms/u-boot/arch/powerpc/cpu/mpc85xx/cpu_init.c
new file mode 100644 (file)
index 0000000..d6cf885
--- /dev/null
@@ -0,0 +1,940 @@
+/*
+ * Copyright 2007-2011 Freescale Semiconductor, Inc.
+ *
+ * (C) Copyright 2003 Motorola Inc.
+ * Modified by Xianghua Xiao, X.Xiao@motorola.com
+ *
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <watchdog.h>
+#include <asm/processor.h>
+#include <ioports.h>
+#include <sata.h>
+#include <fm_eth.h>
+#include <asm/io.h>
+#include <asm/cache.h>
+#include <asm/mmu.h>
+#include <asm/fsl_errata.h>
+#include <asm/fsl_law.h>
+#include <asm/fsl_serdes.h>
+#include <asm/fsl_srio.h>
+#include <fsl_usb.h>
+#include <hwconfig.h>
+#include <linux/compiler.h>
+#include "mp.h"
+#ifdef CONFIG_SYS_QE_FMAN_FW_IN_NAND
+#include <nand.h>
+#include <errno.h>
+#endif
+
+#include "../../../../drivers/block/fsl_sata.h"
+#ifdef CONFIG_U_QE
+#include "../../../../drivers/qe/qe.h"
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_SYS_FSL_SINGLE_SOURCE_CLK
+/*
+ * For deriving usb clock from 100MHz sysclk, reference divisor is set
+ * to a value of 5, which gives an intermediate value 20(100/5). The
+ * multiplication factor integer is set to 24, which when multiplied to
+ * above intermediate value provides clock for usb ip.
+ */
+void usb_single_source_clk_configure(struct ccsr_usb_phy *usb_phy)
+{
+       sys_info_t sysinfo;
+
+       get_sys_info(&sysinfo);
+       if (sysinfo.diff_sysclk == 1) {
+               clrbits_be32(&usb_phy->pllprg[1],
+                            CONFIG_SYS_FSL_USB_PLLPRG2_MFI);
+               setbits_be32(&usb_phy->pllprg[1],
+                            CONFIG_SYS_FSL_USB_PLLPRG2_REF_DIV_INTERNAL_CLK |
+                            CONFIG_SYS_FSL_USB_PLLPRG2_MFI_INTERNAL_CLK |
+                            CONFIG_SYS_FSL_USB_INTERNAL_SOC_CLK_EN);
+               }
+}
+#endif
+
+#ifdef CONFIG_SYS_FSL_ERRATUM_A006261
+void fsl_erratum_a006261_workaround(struct ccsr_usb_phy __iomem *usb_phy)
+{
+#ifdef CONFIG_SYS_FSL_USB_DUAL_PHY_ENABLE
+       u32 xcvrprg = in_be32(&usb_phy->port1.xcvrprg);
+
+       /* Increase Disconnect Threshold by 50mV */
+       xcvrprg &= ~CONFIG_SYS_FSL_USB_XCVRPRG_HS_DCNT_PROG_MASK |
+                                               INC_DCNT_THRESHOLD_50MV;
+       /* Enable programming of USB High speed Disconnect threshold */
+       xcvrprg |= CONFIG_SYS_FSL_USB_XCVRPRG_HS_DCNT_PROG_EN;
+       out_be32(&usb_phy->port1.xcvrprg, xcvrprg);
+
+       xcvrprg = in_be32(&usb_phy->port2.xcvrprg);
+       /* Increase Disconnect Threshold by 50mV */
+       xcvrprg &= ~CONFIG_SYS_FSL_USB_XCVRPRG_HS_DCNT_PROG_MASK |
+                                               INC_DCNT_THRESHOLD_50MV;
+       /* Enable programming of USB High speed Disconnect threshold */
+       xcvrprg |= CONFIG_SYS_FSL_USB_XCVRPRG_HS_DCNT_PROG_EN;
+       out_be32(&usb_phy->port2.xcvrprg, xcvrprg);
+#else
+
+       u32 temp = 0;
+       u32 status = in_be32(&usb_phy->status1);
+
+       u32 squelch_prog_rd_0_2 =
+               (status >> CONFIG_SYS_FSL_USB_SQUELCH_PROG_RD_0)
+                       & CONFIG_SYS_FSL_USB_SQUELCH_PROG_MASK;
+
+       u32 squelch_prog_rd_3_5 =
+               (status >> CONFIG_SYS_FSL_USB_SQUELCH_PROG_RD_3)
+                       & CONFIG_SYS_FSL_USB_SQUELCH_PROG_MASK;
+
+       setbits_be32(&usb_phy->config1,
+                    CONFIG_SYS_FSL_USB_HS_DISCNCT_INC);
+       setbits_be32(&usb_phy->config2,
+                    CONFIG_SYS_FSL_USB_RX_AUTO_CAL_RD_WR_SEL);
+
+       temp = squelch_prog_rd_0_2 << CONFIG_SYS_FSL_USB_SQUELCH_PROG_WR_0;
+       out_be32(&usb_phy->config2, in_be32(&usb_phy->config2) | temp);
+
+       temp = squelch_prog_rd_3_5 << CONFIG_SYS_FSL_USB_SQUELCH_PROG_WR_3;
+       out_be32(&usb_phy->config2, in_be32(&usb_phy->config2) | temp);
+#endif
+}
+#endif
+
+
+#if defined(CONFIG_QE) && !defined(CONFIG_U_QE)
+extern qe_iop_conf_t qe_iop_conf_tab[];
+extern void qe_config_iopin(u8 port, u8 pin, int dir,
+                               int open_drain, int assign);
+extern void qe_init(uint qe_base);
+extern void qe_reset(void);
+
+static void config_qe_ioports(void)
+{
+       u8      port, pin;
+       int     dir, open_drain, assign;
+       int     i;
+
+       for (i = 0; qe_iop_conf_tab[i].assign != QE_IOP_TAB_END; i++) {
+               port            = qe_iop_conf_tab[i].port;
+               pin             = qe_iop_conf_tab[i].pin;
+               dir             = qe_iop_conf_tab[i].dir;
+               open_drain      = qe_iop_conf_tab[i].open_drain;
+               assign          = qe_iop_conf_tab[i].assign;
+               qe_config_iopin(port, pin, dir, open_drain, assign);
+       }
+}
+#endif
+
+#ifdef CONFIG_CPM2
+void config_8560_ioports (volatile ccsr_cpm_t * cpm)
+{
+       int portnum;
+
+       for (portnum = 0; portnum < 4; portnum++) {
+               uint pmsk = 0,
+                    ppar = 0,
+                    psor = 0,
+                    pdir = 0,
+                    podr = 0,
+                    pdat = 0;
+               iop_conf_t *iopc = (iop_conf_t *) & iop_conf_tab[portnum][0];
+               iop_conf_t *eiopc = iopc + 32;
+               uint msk = 1;
+
+               /*
+                * NOTE:
+                * index 0 refers to pin 31,
+                * index 31 refers to pin 0
+                */
+               while (iopc < eiopc) {
+                       if (iopc->conf) {
+                               pmsk |= msk;
+                               if (iopc->ppar)
+                                       ppar |= msk;
+                               if (iopc->psor)
+                                       psor |= msk;
+                               if (iopc->pdir)
+                                       pdir |= msk;
+                               if (iopc->podr)
+                                       podr |= msk;
+                               if (iopc->pdat)
+                                       pdat |= msk;
+                       }
+
+                       msk <<= 1;
+                       iopc++;
+               }
+
+               if (pmsk != 0) {
+                       volatile ioport_t *iop = ioport_addr (cpm, portnum);
+                       uint tpmsk = ~pmsk;
+
+                       /*
+                        * the (somewhat confused) paragraph at the
+                        * bottom of page 35-5 warns that there might
+                        * be "unknown behaviour" when programming
+                        * PSORx and PDIRx, if PPARx = 1, so I
+                        * decided this meant I had to disable the
+                        * dedicated function first, and enable it
+                        * last.
+                        */
+                       iop->ppar &= tpmsk;
+                       iop->psor = (iop->psor & tpmsk) | psor;
+                       iop->podr = (iop->podr & tpmsk) | podr;
+                       iop->pdat = (iop->pdat & tpmsk) | pdat;
+                       iop->pdir = (iop->pdir & tpmsk) | pdir;
+                       iop->ppar |= ppar;
+               }
+       }
+}
+#endif
+
+#ifdef CONFIG_SYS_FSL_CPC
+#if defined(CONFIG_RAMBOOT_PBL) || defined(CONFIG_SYS_CPC_REINIT_F)
+static void disable_cpc_sram(void)
+{
+       int i;
+
+       cpc_corenet_t *cpc = (cpc_corenet_t *)CONFIG_SYS_FSL_CPC_ADDR;
+
+       for (i = 0; i < CONFIG_SYS_NUM_CPC; i++, cpc++) {
+               if (in_be32(&cpc->cpcsrcr0) & CPC_SRCR0_SRAMEN) {
+                       /* find and disable LAW of SRAM */
+                       struct law_entry law = find_law(CONFIG_SYS_INIT_L3_ADDR);
+
+                       if (law.index == -1) {
+                               printf("\nFatal error happened\n");
+                               return;
+                       }
+                       disable_law(law.index);
+
+                       clrbits_be32(&cpc->cpchdbcr0, CPC_HDBCR0_CDQ_SPEC_DIS);
+                       out_be32(&cpc->cpccsr0, 0);
+                       out_be32(&cpc->cpcsrcr0, 0);
+               }
+       }
+}
+#endif
+
+static void enable_cpc(void)
+{
+       int i;
+       u32 size = 0;
+
+       cpc_corenet_t *cpc = (cpc_corenet_t *)CONFIG_SYS_FSL_CPC_ADDR;
+
+       for (i = 0; i < CONFIG_SYS_NUM_CPC; i++, cpc++) {
+               u32 cpccfg0 = in_be32(&cpc->cpccfg0);
+               size += CPC_CFG0_SZ_K(cpccfg0);
+
+#ifdef CONFIG_SYS_FSL_ERRATUM_CPC_A002
+               setbits_be32(&cpc->cpchdbcr0, CPC_HDBCR0_TAG_ECC_SCRUB_DIS);
+#endif
+#ifdef CONFIG_SYS_FSL_ERRATUM_CPC_A003
+               setbits_be32(&cpc->cpchdbcr0, CPC_HDBCR0_DATA_ECC_SCRUB_DIS);
+#endif
+#ifdef CONFIG_SYS_FSL_ERRATUM_A006593
+               setbits_be32(&cpc->cpchdbcr0, 1 << (31 - 21));
+#endif
+#ifdef CONFIG_SYS_FSL_ERRATUM_A006379
+               if (has_erratum_a006379()) {
+                       setbits_be32(&cpc->cpchdbcr0,
+                                    CPC_HDBCR0_SPLRU_LEVEL_EN);
+               }
+#endif
+
+               out_be32(&cpc->cpccsr0, CPC_CSR0_CE | CPC_CSR0_PE);
+               /* Read back to sync write */
+               in_be32(&cpc->cpccsr0);
+
+       }
+
+       puts("Corenet Platform Cache: ");
+       print_size(size * 1024, " enabled\n");
+}
+
+static void invalidate_cpc(void)
+{
+       int i;
+       cpc_corenet_t *cpc = (cpc_corenet_t *)CONFIG_SYS_FSL_CPC_ADDR;
+
+       for (i = 0; i < CONFIG_SYS_NUM_CPC; i++, cpc++) {
+               /* skip CPC when it used as all SRAM */
+               if (in_be32(&cpc->cpcsrcr0) & CPC_SRCR0_SRAMEN)
+                       continue;
+               /* Flash invalidate the CPC and clear all the locks */
+               out_be32(&cpc->cpccsr0, CPC_CSR0_FI | CPC_CSR0_LFC);
+               while (in_be32(&cpc->cpccsr0) & (CPC_CSR0_FI | CPC_CSR0_LFC))
+                       ;
+       }
+}
+#else
+#define enable_cpc()
+#define invalidate_cpc()
+#endif /* CONFIG_SYS_FSL_CPC */
+
+/*
+ * Breathe some life into the CPU...
+ *
+ * Set up the memory map
+ * initialize a bunch of registers
+ */
+
+#ifdef CONFIG_FSL_CORENET
+static void corenet_tb_init(void)
+{
+       volatile ccsr_rcpm_t *rcpm =
+               (void *)(CONFIG_SYS_FSL_CORENET_RCPM_ADDR);
+       volatile ccsr_pic_t *pic =
+               (void *)(CONFIG_SYS_MPC8xxx_PIC_ADDR);
+       u32 whoami = in_be32(&pic->whoami);
+
+       /* Enable the timebase register for this core */
+       out_be32(&rcpm->ctbenrl, (1 << whoami));
+}
+#endif
+
+#ifdef CONFIG_SYS_FSL_ERRATUM_A007212
+void fsl_erratum_a007212_workaround(void)
+{
+       ccsr_gur_t __iomem *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+       u32 ddr_pll_ratio;
+       u32 __iomem *plldgdcr1 = (void *)(CONFIG_SYS_DCSRBAR + 0x21c20);
+       u32 __iomem *plldadcr1 = (void *)(CONFIG_SYS_DCSRBAR + 0x21c28);
+       u32 __iomem *dpdovrcr4 = (void *)(CONFIG_SYS_DCSRBAR + 0x21e80);
+#if (CONFIG_NUM_DDR_CONTROLLERS >= 2)
+       u32 __iomem *plldgdcr2 = (void *)(CONFIG_SYS_DCSRBAR + 0x21c40);
+       u32 __iomem *plldadcr2 = (void *)(CONFIG_SYS_DCSRBAR + 0x21c48);
+#if (CONFIG_NUM_DDR_CONTROLLERS >= 3)
+       u32 __iomem *plldgdcr3 = (void *)(CONFIG_SYS_DCSRBAR + 0x21c60);
+       u32 __iomem *plldadcr3 = (void *)(CONFIG_SYS_DCSRBAR + 0x21c68);
+#endif
+#endif
+       /*
+        * Even this workaround applies to selected version of SoCs, it is
+        * safe to apply to all versions, with the limitation of odd ratios.
+        * If RCW has disabled DDR PLL, we have to apply this workaround,
+        * otherwise DDR will not work.
+        */
+       ddr_pll_ratio = (in_be32(&gur->rcwsr[0]) >>
+               FSL_CORENET_RCWSR0_MEM_PLL_RAT_SHIFT) &
+               FSL_CORENET_RCWSR0_MEM_PLL_RAT_MASK;
+       /* check if RCW sets ratio to 0, required by this workaround */
+       if (ddr_pll_ratio != 0)
+               return;
+       ddr_pll_ratio = (in_be32(&gur->rcwsr[0]) >>
+               FSL_CORENET_RCWSR0_MEM_PLL_RAT_RESV_SHIFT) &
+               FSL_CORENET_RCWSR0_MEM_PLL_RAT_MASK;
+       /* check if reserved bits have the desired ratio */
+       if (ddr_pll_ratio == 0) {
+               printf("Error: Unknown DDR PLL ratio!\n");
+               return;
+       }
+       ddr_pll_ratio >>= 1;
+
+       setbits_be32(plldadcr1, 0x02000001);
+#if (CONFIG_NUM_DDR_CONTROLLERS >= 2)
+       setbits_be32(plldadcr2, 0x02000001);
+#if (CONFIG_NUM_DDR_CONTROLLERS >= 3)
+       setbits_be32(plldadcr3, 0x02000001);
+#endif
+#endif
+       setbits_be32(dpdovrcr4, 0xe0000000);
+       out_be32(plldgdcr1, 0x08000001 | (ddr_pll_ratio << 1));
+#if (CONFIG_NUM_DDR_CONTROLLERS >= 2)
+       out_be32(plldgdcr2, 0x08000001 | (ddr_pll_ratio << 1));
+#if (CONFIG_NUM_DDR_CONTROLLERS >= 3)
+       out_be32(plldgdcr3, 0x08000001 | (ddr_pll_ratio << 1));
+#endif
+#endif
+       udelay(100);
+       clrbits_be32(plldadcr1, 0x02000001);
+#if (CONFIG_NUM_DDR_CONTROLLERS >= 2)
+       clrbits_be32(plldadcr2, 0x02000001);
+#if (CONFIG_NUM_DDR_CONTROLLERS >= 3)
+       clrbits_be32(plldadcr3, 0x02000001);
+#endif
+#endif
+       clrbits_be32(dpdovrcr4, 0xe0000000);
+}
+#endif
+
+ulong cpu_init_f(void)
+{
+       ulong flag = 0;
+       extern void m8560_cpm_reset (void);
+#ifdef CONFIG_SYS_DCSRBAR_PHYS
+       ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+#endif
+#if defined(CONFIG_SECURE_BOOT)
+       struct law_entry law;
+#endif
+#ifdef CONFIG_MPC8548
+       ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR);
+       uint svr = get_svr();
+
+       /*
+        * CPU2 errata workaround: A core hang possible while executing
+        * a msync instruction and a snoopable transaction from an I/O
+        * master tagged to make quick forward progress is present.
+        * Fixed in silicon rev 2.1.
+        */
+       if ((SVR_MAJ(svr) == 1) || ((SVR_MAJ(svr) == 2 && SVR_MIN(svr) == 0x0)))
+               out_be32(&ecm->eebpcr, in_be32(&ecm->eebpcr) | (1 << 16));
+#endif
+
+       disable_tlb(14);
+       disable_tlb(15);
+
+#if defined(CONFIG_SECURE_BOOT)
+       /* Disable the LAW created for NOR flash by the PBI commands */
+       law = find_law(CONFIG_SYS_PBI_FLASH_BASE);
+       if (law.index != -1)
+               disable_law(law.index);
+
+#if defined(CONFIG_SYS_CPC_REINIT_F)
+       disable_cpc_sram();
+#endif
+#endif
+
+#ifdef CONFIG_CPM2
+       config_8560_ioports((ccsr_cpm_t *)CONFIG_SYS_MPC85xx_CPM_ADDR);
+#endif
+
+       init_early_memctl_regs();
+
+#if defined(CONFIG_CPM2)
+       m8560_cpm_reset();
+#endif
+
+#if defined(CONFIG_QE) && !defined(CONFIG_U_QE)
+       /* Config QE ioports */
+       config_qe_ioports();
+#endif
+
+#if defined(CONFIG_FSL_DMA)
+       dma_init();
+#endif
+#ifdef CONFIG_FSL_CORENET
+       corenet_tb_init();
+#endif
+       init_used_tlb_cams();
+
+       /* Invalidate the CPC before DDR gets enabled */
+       invalidate_cpc();
+
+ #ifdef CONFIG_SYS_DCSRBAR_PHYS
+       /* set DCSRCR so that DCSR space is 1G */
+       setbits_be32(&gur->dcsrcr, FSL_CORENET_DCSR_SZ_1G);
+       in_be32(&gur->dcsrcr);
+#endif
+
+#ifdef CONFIG_SYS_DCSRBAR_PHYS
+#ifdef CONFIG_DEEP_SLEEP
+       /* disable the console if boot from deep sleep */
+       if (in_be32(&gur->scrtsr[0]) & (1 << 3))
+               flag = GD_FLG_SILENT | GD_FLG_DISABLE_CONSOLE;
+#endif
+#endif
+#ifdef CONFIG_SYS_FSL_ERRATUM_A007212
+       fsl_erratum_a007212_workaround();
+#endif
+
+       return flag;
+}
+
+/* Implement a dummy function for those platforms w/o SERDES */
+static void __fsl_serdes__init(void)
+{
+       return ;
+}
+__attribute__((weak, alias("__fsl_serdes__init"))) void fsl_serdes_init(void);
+
+#if defined(CONFIG_SYS_FSL_QORIQ_CHASSIS2) && defined(CONFIG_E6500)
+int enable_cluster_l2(void)
+{
+       int i = 0;
+       u32 cluster, svr = get_svr();
+       ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+       struct ccsr_cluster_l2 __iomem *l2cache;
+
+       /* only the L2 of first cluster should be enabled as expected on T4080,
+        * but there is no EOC in the first cluster as HW sake, so return here
+        * to skip enabling L2 cache of the 2nd cluster.
+        */
+       if (SVR_SOC_VER(svr) == SVR_T4080)
+               return 0;
+
+       cluster = in_be32(&gur->tp_cluster[i].lower);
+       if (cluster & TP_CLUSTER_EOC)
+               return 0;
+
+       /* The first cache has already been set up, so skip it */
+       i++;
+
+       /* Look through the remaining clusters, and set up their caches */
+       do {
+               int j, cluster_valid = 0;
+
+               l2cache = (void __iomem *)(CONFIG_SYS_FSL_CLUSTER_1_L2 + i * 0x40000);
+
+               cluster = in_be32(&gur->tp_cluster[i].lower);
+
+               /* check that at least one core/accel is enabled in cluster */
+               for (j = 0; j < 4; j++) {
+                       u32 idx = (cluster >> (j*8)) & TP_CLUSTER_INIT_MASK;
+                       u32 type = in_be32(&gur->tp_ityp[idx]);
+
+                       if (type & TP_ITYP_AV)
+                               cluster_valid = 1;
+               }
+
+               if (cluster_valid) {
+                       /* set stash ID to (cluster) * 2 + 32 + 1 */
+                       clrsetbits_be32(&l2cache->l2csr1, 0xff, 32 + i * 2 + 1);
+
+                       printf("enable l2 for cluster %d %p\n", i, l2cache);
+
+                       out_be32(&l2cache->l2csr0, L2CSR0_L2FI|L2CSR0_L2LFC);
+                       while ((in_be32(&l2cache->l2csr0)
+                               & (L2CSR0_L2FI|L2CSR0_L2LFC)) != 0)
+                                       ;
+                       out_be32(&l2cache->l2csr0, L2CSR0_L2E|L2CSR0_L2PE|L2CSR0_L2REP_MODE);
+               }
+               i++;
+       } while (!(cluster & TP_CLUSTER_EOC));
+
+       return 0;
+}
+#endif
+
+/*
+ * Initialize L2 as cache.
+ *
+ * The newer 8548, etc, parts have twice as much cache, but
+ * use the same bit-encoding as the older 8555, etc, parts.
+ *
+ */
+int cpu_init_r(void)
+{
+       __maybe_unused u32 svr = get_svr();
+#ifdef CONFIG_SYS_LBC_LCRR
+       fsl_lbc_t *lbc = (void __iomem *)LBC_BASE_ADDR;
+#endif
+#ifdef CONFIG_L2_CACHE
+       ccsr_l2cache_t *l2cache = (void __iomem *)CONFIG_SYS_MPC85xx_L2_ADDR;
+#elif defined(CONFIG_SYS_FSL_QORIQ_CHASSIS2) && defined(CONFIG_E6500)
+       struct ccsr_cluster_l2 * l2cache = (void __iomem *)CONFIG_SYS_FSL_CLUSTER_1_L2;
+#endif
+#if defined(CONFIG_PPC_SPINTABLE_COMPATIBLE) && defined(CONFIG_MP)
+       extern int spin_table_compat;
+       const char *spin;
+#endif
+#ifdef CONFIG_SYS_FSL_ERRATUM_SEC_A003571
+       ccsr_sec_t __iomem *sec = (void *)CONFIG_SYS_FSL_SEC_ADDR;
+#endif
+#if defined(CONFIG_SYS_P4080_ERRATUM_CPU22) || \
+       defined(CONFIG_SYS_FSL_ERRATUM_NMG_CPU_A011)
+       /*
+        * CPU22 and NMG_CPU_A011 share the same workaround.
+        * CPU22 applies to P4080 rev 1.0, 2.0, fixed in 3.0
+        * NMG_CPU_A011 applies to P4080 rev 1.0, 2.0, fixed in 3.0
+        * also applies to P3041 rev 1.0, 1.1, P2041 rev 1.0, 1.1, both
+        * fixed in 2.0. NMG_CPU_A011 is activated by default and can
+        * be disabled by hwconfig with syntax:
+        *
+        * fsl_cpu_a011:disable
+        */
+       extern int enable_cpu_a011_workaround;
+#ifdef CONFIG_SYS_P4080_ERRATUM_CPU22
+       enable_cpu_a011_workaround = (SVR_MAJ(svr) < 3);
+#else
+       char buffer[HWCONFIG_BUFFER_SIZE];
+       char *buf = NULL;
+       int n, res;
+
+       n = getenv_f("hwconfig", buffer, sizeof(buffer));
+       if (n > 0)
+               buf = buffer;
+
+       res = hwconfig_arg_cmp_f("fsl_cpu_a011", "disable", buf);
+       if (res > 0)
+               enable_cpu_a011_workaround = 0;
+       else {
+               if (n >= HWCONFIG_BUFFER_SIZE) {
+                       printf("fsl_cpu_a011 was not found. hwconfig variable "
+                               "may be too long\n");
+               }
+               enable_cpu_a011_workaround =
+                       (SVR_SOC_VER(svr) == SVR_P4080 && SVR_MAJ(svr) < 3) ||
+                       (SVR_SOC_VER(svr) != SVR_P4080 && SVR_MAJ(svr) < 2);
+       }
+#endif
+       if (enable_cpu_a011_workaround) {
+               flush_dcache();
+               mtspr(L1CSR2, (mfspr(L1CSR2) | L1CSR2_DCWS));
+               sync();
+       }
+#endif
+#ifdef CONFIG_SYS_FSL_ERRATUM_A005812
+       /*
+        * A-005812 workaround sets bit 32 of SPR 976 for SoCs running
+        * in write shadow mode. Checking DCWS before setting SPR 976.
+        */
+       if (mfspr(L1CSR2) & L1CSR2_DCWS)
+               mtspr(SPRN_HDBCR0, (mfspr(SPRN_HDBCR0) | 0x80000000));
+#endif
+
+#if defined(CONFIG_PPC_SPINTABLE_COMPATIBLE) && defined(CONFIG_MP)
+       spin = getenv("spin_table_compat");
+       if (spin && (*spin == 'n'))
+               spin_table_compat = 0;
+       else
+               spin_table_compat = 1;
+#endif
+
+       puts ("L2:    ");
+
+#if defined(CONFIG_L2_CACHE)
+       volatile uint cache_ctl;
+       uint ver;
+       u32 l2siz_field;
+
+       ver = SVR_SOC_VER(svr);
+
+       asm("msync;isync");
+       cache_ctl = l2cache->l2ctl;
+
+#if defined(CONFIG_SYS_RAMBOOT) && defined(CONFIG_SYS_INIT_L2_ADDR)
+       if (cache_ctl & MPC85xx_L2CTL_L2E) {
+               /* Clear L2 SRAM memory-mapped base address */
+               out_be32(&l2cache->l2srbar0, 0x0);
+               out_be32(&l2cache->l2srbar1, 0x0);
+
+               /* set MBECCDIS=0, SBECCDIS=0 */
+               clrbits_be32(&l2cache->l2errdis,
+                               (MPC85xx_L2ERRDIS_MBECC |
+                                MPC85xx_L2ERRDIS_SBECC));
+
+               /* set L2E=0, L2SRAM=0 */
+               clrbits_be32(&l2cache->l2ctl,
+                               (MPC85xx_L2CTL_L2E |
+                                MPC85xx_L2CTL_L2SRAM_ENTIRE));
+       }
+#endif
+
+       l2siz_field = (cache_ctl >> 28) & 0x3;
+
+       switch (l2siz_field) {
+       case 0x0:
+               printf(" unknown size (0x%08x)\n", cache_ctl);
+               return -1;
+               break;
+       case 0x1:
+               if (ver == SVR_8540 || ver == SVR_8560   ||
+                   ver == SVR_8541 || ver == SVR_8555) {
+                       puts("128 KiB ");
+                       /* set L2E=1, L2I=1, & L2BLKSZ=1 (128 KiBibyte) */
+                       cache_ctl = 0xc4000000;
+               } else {
+                       puts("256 KiB ");
+                       cache_ctl = 0xc0000000; /* set L2E=1, L2I=1, & L2SRAM=0 */
+               }
+               break;
+       case 0x2:
+               if (ver == SVR_8540 || ver == SVR_8560   ||
+                   ver == SVR_8541 || ver == SVR_8555) {
+                       puts("256 KiB ");
+                       /* set L2E=1, L2I=1, & L2BLKSZ=2 (256 KiBibyte) */
+                       cache_ctl = 0xc8000000;
+               } else {
+                       puts("512 KiB ");
+                       /* set L2E=1, L2I=1, & L2SRAM=0 */
+                       cache_ctl = 0xc0000000;
+               }
+               break;
+       case 0x3:
+               puts("1024 KiB ");
+               /* set L2E=1, L2I=1, & L2SRAM=0 */
+               cache_ctl = 0xc0000000;
+               break;
+       }
+
+       if (l2cache->l2ctl & MPC85xx_L2CTL_L2E) {
+               puts("already enabled");
+#if defined(CONFIG_SYS_INIT_L2_ADDR) && defined(CONFIG_SYS_FLASH_BASE)
+               u32 l2srbar = l2cache->l2srbar0;
+               if (l2cache->l2ctl & MPC85xx_L2CTL_L2SRAM_ENTIRE
+                               && l2srbar >= CONFIG_SYS_FLASH_BASE) {
+                       l2srbar = CONFIG_SYS_INIT_L2_ADDR;
+                       l2cache->l2srbar0 = l2srbar;
+                       printf(", moving to 0x%08x", CONFIG_SYS_INIT_L2_ADDR);
+               }
+#endif /* CONFIG_SYS_INIT_L2_ADDR */
+               puts("\n");
+       } else {
+               asm("msync;isync");
+               l2cache->l2ctl = cache_ctl; /* invalidate & enable */
+               asm("msync;isync");
+               puts("enabled\n");
+       }
+#elif defined(CONFIG_BACKSIDE_L2_CACHE)
+       if (SVR_SOC_VER(svr) == SVR_P2040) {
+               puts("N/A\n");
+               goto skip_l2;
+       }
+
+       u32 l2cfg0 = mfspr(SPRN_L2CFG0);
+
+       /* invalidate the L2 cache */
+       mtspr(SPRN_L2CSR0, (L2CSR0_L2FI|L2CSR0_L2LFC));
+       while (mfspr(SPRN_L2CSR0) & (L2CSR0_L2FI|L2CSR0_L2LFC))
+               ;
+
+#ifdef CONFIG_SYS_CACHE_STASHING
+       /* set stash id to (coreID) * 2 + 32 + L2 (1) */
+       mtspr(SPRN_L2CSR1, (32 + 1));
+#endif
+
+       /* enable the cache */
+       mtspr(SPRN_L2CSR0, CONFIG_SYS_INIT_L2CSR0);
+
+       if (CONFIG_SYS_INIT_L2CSR0 & L2CSR0_L2E) {
+               while (!(mfspr(SPRN_L2CSR0) & L2CSR0_L2E))
+                       ;
+               print_size((l2cfg0 & 0x3fff) * 64 * 1024, " enabled\n");
+       }
+
+skip_l2:
+#elif defined(CONFIG_SYS_FSL_QORIQ_CHASSIS2) && defined(CONFIG_E6500)
+       if (l2cache->l2csr0 & L2CSR0_L2E)
+               print_size((l2cache->l2cfg0 & 0x3fff) * 64 * 1024,
+                          " enabled\n");
+
+       enable_cluster_l2();
+#else
+       puts("disabled\n");
+#endif
+
+#if defined(CONFIG_RAMBOOT_PBL)
+       disable_cpc_sram();
+#endif
+       enable_cpc();
+
+#ifndef CONFIG_SYS_FSL_NO_SERDES
+       /* needs to be in ram since code uses global static vars */
+       fsl_serdes_init();
+#endif
+
+#ifdef CONFIG_SYS_FSL_ERRATUM_SEC_A003571
+#define MCFGR_AXIPIPE 0x000000f0
+       if (IS_SVR_REV(svr, 1, 0))
+               clrbits_be32(&sec->mcfgr, MCFGR_AXIPIPE);
+#endif
+
+#ifdef CONFIG_SYS_FSL_ERRATUM_A005871
+       if (IS_SVR_REV(svr, 1, 0)) {
+               int i;
+               __be32 *p = (void __iomem *)CONFIG_SYS_DCSRBAR + 0xb004c;
+
+               for (i = 0; i < 12; i++) {
+                       p += i + (i > 5 ? 11 : 0);
+                       out_be32(p, 0x2);
+               }
+               p = (void __iomem *)CONFIG_SYS_DCSRBAR + 0xb0108;
+               out_be32(p, 0x34);
+       }
+#endif
+
+#ifdef CONFIG_SYS_SRIO
+       srio_init();
+#ifdef CONFIG_SRIO_PCIE_BOOT_MASTER
+       char *s = getenv("bootmaster");
+       if (s) {
+               if (!strcmp(s, "SRIO1")) {
+                       srio_boot_master(1);
+                       srio_boot_master_release_slave(1);
+               }
+               if (!strcmp(s, "SRIO2")) {
+                       srio_boot_master(2);
+                       srio_boot_master_release_slave(2);
+               }
+       }
+#endif
+#endif
+
+#if defined(CONFIG_MP)
+       setup_mp();
+#endif
+
+#ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC13
+       {
+               if (SVR_MAJ(svr) < 3) {
+                       void *p;
+                       p = (void *)CONFIG_SYS_DCSRBAR + 0x20520;
+                       setbits_be32(p, 1 << (31 - 14));
+               }
+       }
+#endif
+
+#ifdef CONFIG_SYS_LBC_LCRR
+       /*
+        * Modify the CLKDIV field of LCRR register to improve the writing
+        * speed for NOR flash.
+        */
+       clrsetbits_be32(&lbc->lcrr, LCRR_CLKDIV, CONFIG_SYS_LBC_LCRR);
+       __raw_readl(&lbc->lcrr);
+       isync();
+#ifdef CONFIG_SYS_FSL_ERRATUM_NMG_LBC103
+       udelay(100);
+#endif
+#endif
+
+#ifdef CONFIG_SYS_FSL_USB1_PHY_ENABLE
+       {
+               struct ccsr_usb_phy __iomem *usb_phy1 =
+                       (void *)CONFIG_SYS_MPC85xx_USB1_PHY_ADDR;
+#ifdef CONFIG_SYS_FSL_ERRATUM_A006261
+               if (has_erratum_a006261())
+                       fsl_erratum_a006261_workaround(usb_phy1);
+#endif
+               out_be32(&usb_phy1->usb_enable_override,
+                               CONFIG_SYS_FSL_USB_ENABLE_OVERRIDE);
+       }
+#endif
+#ifdef CONFIG_SYS_FSL_USB2_PHY_ENABLE
+       {
+               struct ccsr_usb_phy __iomem *usb_phy2 =
+                       (void *)CONFIG_SYS_MPC85xx_USB2_PHY_ADDR;
+#ifdef CONFIG_SYS_FSL_ERRATUM_A006261
+               if (has_erratum_a006261())
+                       fsl_erratum_a006261_workaround(usb_phy2);
+#endif
+               out_be32(&usb_phy2->usb_enable_override,
+                               CONFIG_SYS_FSL_USB_ENABLE_OVERRIDE);
+       }
+#endif
+
+#ifdef CONFIG_SYS_FSL_ERRATUM_USB14
+       /* On P204x/P304x/P50x0 Rev1.0, USB transmit will result internal
+        * multi-bit ECC errors which has impact on performance, so software
+        * should disable all ECC reporting from USB1 and USB2.
+        */
+       if (IS_SVR_REV(get_svr(), 1, 0)) {
+               struct dcsr_dcfg_regs *dcfg = (struct dcsr_dcfg_regs *)
+                       (CONFIG_SYS_DCSRBAR + CONFIG_SYS_DCSR_DCFG_OFFSET);
+               setbits_be32(&dcfg->ecccr1,
+                               (DCSR_DCFG_ECC_DISABLE_USB1 |
+                                DCSR_DCFG_ECC_DISABLE_USB2));
+       }
+#endif
+
+#if defined(CONFIG_SYS_FSL_USB_DUAL_PHY_ENABLE)
+               struct ccsr_usb_phy __iomem *usb_phy =
+                       (void *)CONFIG_SYS_MPC85xx_USB1_PHY_ADDR;
+               setbits_be32(&usb_phy->pllprg[1],
+                            CONFIG_SYS_FSL_USB_PLLPRG2_PHY2_CLK_EN |
+                            CONFIG_SYS_FSL_USB_PLLPRG2_PHY1_CLK_EN |
+                            CONFIG_SYS_FSL_USB_PLLPRG2_MFI |
+                            CONFIG_SYS_FSL_USB_PLLPRG2_PLL_EN);
+#ifdef CONFIG_SYS_FSL_SINGLE_SOURCE_CLK
+               usb_single_source_clk_configure(usb_phy);
+#endif
+               setbits_be32(&usb_phy->port1.ctrl,
+                            CONFIG_SYS_FSL_USB_CTRL_PHY_EN);
+               setbits_be32(&usb_phy->port1.drvvbuscfg,
+                            CONFIG_SYS_FSL_USB_DRVVBUS_CR_EN);
+               setbits_be32(&usb_phy->port1.pwrfltcfg,
+                            CONFIG_SYS_FSL_USB_PWRFLT_CR_EN);
+               setbits_be32(&usb_phy->port2.ctrl,
+                            CONFIG_SYS_FSL_USB_CTRL_PHY_EN);
+               setbits_be32(&usb_phy->port2.drvvbuscfg,
+                            CONFIG_SYS_FSL_USB_DRVVBUS_CR_EN);
+               setbits_be32(&usb_phy->port2.pwrfltcfg,
+                            CONFIG_SYS_FSL_USB_PWRFLT_CR_EN);
+
+#ifdef CONFIG_SYS_FSL_ERRATUM_A006261
+               if (has_erratum_a006261())
+                       fsl_erratum_a006261_workaround(usb_phy);
+#endif
+
+#endif /* CONFIG_SYS_FSL_USB_DUAL_PHY_ENABLE */
+
+#ifdef CONFIG_FMAN_ENET
+       fman_enet_init();
+#endif
+
+#if defined(CONFIG_FSL_SATA_V2) && defined(CONFIG_FSL_SATA_ERRATUM_A001)
+       /*
+        * For P1022/1013 Rev1.0 silicon, after power on SATA host
+        * controller is configured in legacy mode instead of the
+        * expected enterprise mode. Software needs to clear bit[28]
+        * of HControl register to change to enterprise mode from
+        * legacy mode.  We assume that the controller is offline.
+        */
+       if (IS_SVR_REV(svr, 1, 0) &&
+           ((SVR_SOC_VER(svr) == SVR_P1022) ||
+            (SVR_SOC_VER(svr) == SVR_P1013))) {
+               fsl_sata_reg_t *reg;
+
+               /* first SATA controller */
+               reg = (void *)CONFIG_SYS_MPC85xx_SATA1_ADDR;
+               clrbits_le32(&reg->hcontrol, HCONTROL_ENTERPRISE_EN);
+
+               /* second SATA controller */
+               reg = (void *)CONFIG_SYS_MPC85xx_SATA2_ADDR;
+               clrbits_le32(&reg->hcontrol, HCONTROL_ENTERPRISE_EN);
+       }
+#endif
+
+       init_used_tlb_cams();
+
+       return 0;
+}
+
+void arch_preboot_os(void)
+{
+       u32 msr;
+
+       /*
+        * We are changing interrupt offsets and are about to boot the OS so
+        * we need to make sure we disable all async interrupts. EE is already
+        * disabled by the time we get called.
+        */
+       msr = mfmsr();
+       msr &= ~(MSR_ME|MSR_CE);
+       mtmsr(msr);
+}
+
+#if defined(CONFIG_CMD_SATA) && defined(CONFIG_FSL_SATA)
+int sata_initialize(void)
+{
+       if (is_serdes_configured(SATA1) || is_serdes_configured(SATA2))
+               return __sata_initialize();
+
+       return 1;
+}
+#endif
+
+void cpu_secondary_init_r(void)
+{
+#ifdef CONFIG_U_QE
+       uint qe_base = CONFIG_SYS_IMMR + 0x00140000; /* QE immr base */
+#elif defined CONFIG_QE
+       uint qe_base = CONFIG_SYS_IMMR + 0x00080000; /* QE immr base */
+#endif
+
+#ifdef CONFIG_QE
+       qe_init(qe_base);
+       qe_reset();
+#endif
+}