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Diffstat (limited to 'board/freescale/mpc8536ds/mpc8536ds.c')
| -rw-r--r-- | board/freescale/mpc8536ds/mpc8536ds.c | 653 |
1 files changed, 653 insertions, 0 deletions
diff --git a/board/freescale/mpc8536ds/mpc8536ds.c b/board/freescale/mpc8536ds/mpc8536ds.c new file mode 100644 index 0000000..8216c70 --- /dev/null +++ b/board/freescale/mpc8536ds/mpc8536ds.c @@ -0,0 +1,653 @@ +/* + * Copyright 2008 Freescale Semiconductor. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <command.h> +#include <pci.h> +#include <asm/processor.h> +#include <asm/mmu.h> +#include <asm/immap_85xx.h> +#include <asm/immap_fsl_pci.h> +#include <asm/fsl_ddr_sdram.h> +#include <asm/io.h> +#include <spd.h> +#include <miiphy.h> +#include <libfdt.h> +#include <spd_sdram.h> +#include <fdt_support.h> + +#include "../common/pixis.h" + +#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) +extern void ddr_enable_ecc(unsigned int dram_size); +#endif + +phys_size_t fixed_sdram(void); + +int checkboard (void) +{ + printf ("Board: MPC8536DS, System ID: 0x%02x, " + "System Version: 0x%02x, FPGA Version: 0x%02x\n", + in8(PIXIS_BASE + PIXIS_ID), in8(PIXIS_BASE + PIXIS_VER), + in8(PIXIS_BASE + PIXIS_PVER)); + return 0; +} + +phys_size_t +initdram(int board_type) +{ + phys_size_t dram_size = 0; + + puts("Initializing...."); + +#ifdef CONFIG_SPD_EEPROM + dram_size = fsl_ddr_sdram(); + + dram_size = setup_ddr_tlbs(dram_size / 0x100000); + + dram_size *= 0x100000; +#else + dram_size = fixed_sdram(); +#endif + +#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) + /* + * Initialize and enable DDR ECC. + */ + ddr_enable_ecc(dram_size); +#endif + puts(" DDR: "); + return dram_size; +} + +#if !defined(CONFIG_SPD_EEPROM) +/* + * Fixed sdram init -- doesn't use serial presence detect. + */ + +phys_size_t fixed_sdram (void) +{ + volatile immap_t *immap = (immap_t *)CFG_IMMR; + volatile ccsr_ddr_t *ddr= &immap->im_ddr; + uint d_init; + + ddr->cs0_bnds = CFG_DDR_CS0_BNDS; + ddr->cs0_config = CFG_DDR_CS0_CONFIG; + + ddr->timing_cfg_3 = CFG_DDR_TIMING_3; + ddr->timing_cfg_0 = CFG_DDR_TIMING_0; + ddr->timing_cfg_1 = CFG_DDR_TIMING_1; + ddr->timing_cfg_2 = CFG_DDR_TIMING_2; + ddr->sdram_mode = CFG_DDR_MODE_1; + ddr->sdram_mode_2 = CFG_DDR_MODE_2; + ddr->sdram_interval = CFG_DDR_INTERVAL; + ddr->sdram_data_init = CFG_DDR_DATA_INIT; + ddr->sdram_clk_cntl = CFG_DDR_CLK_CTRL; + ddr->sdram_cfg_2 = CFG_DDR_CONTROL2; + +#if defined (CONFIG_DDR_ECC) + ddr->err_int_en = CFG_DDR_ERR_INT_EN; + ddr->err_disable = CFG_DDR_ERR_DIS; + ddr->err_sbe = CFG_DDR_SBE; +#endif + asm("sync;isync"); + + udelay(500); + + ddr->sdram_cfg = CFG_DDR_CONTROL; + +#if defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) + d_init = 1; + debug("DDR - 1st controller: memory initializing\n"); + /* + * Poll until memory is initialized. + * 512 Meg at 400 might hit this 200 times or so. + */ + while ((ddr->sdram_cfg_2 & (d_init << 4)) != 0) { + udelay(1000); + } + debug("DDR: memory initialized\n\n"); + asm("sync; isync"); + udelay(500); +#endif + + return 512 * 1024 * 1024; +} + +#endif + +#ifdef CONFIG_PCI1 +static struct pci_controller pci1_hose; +#endif + +#ifdef CONFIG_PCIE1 +static struct pci_controller pcie1_hose; +#endif + +#ifdef CONFIG_PCIE2 +static struct pci_controller pcie2_hose; +#endif + +#ifdef CONFIG_PCIE3 +static struct pci_controller pcie3_hose; +#endif + +int first_free_busno=0; + +void +pci_init_board(void) +{ + volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR); + uint devdisr = gur->devdisr; + uint sdrs2_io_sel = + (gur->pordevsr & MPC85xx_PORDEVSR_SRDS2_IO_SEL) >> 27; + uint io_sel = (gur->pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19; + uint host_agent = (gur->porbmsr & MPC85xx_PORBMSR_HA) >> 16; + + debug(" pci_init_board: devdisr=%x, sdrs2_io_sel=%x, io_sel=%x,\ + host_agent=%x\n", devdisr, sdrs2_io_sel, io_sel, host_agent); + + if (sdrs2_io_sel == 7) + printf(" Serdes2 disalbed\n"); + else if (sdrs2_io_sel == 4) { + printf(" eTSEC1 is in sgmii mode.\n"); + printf(" eTSEC3 is in sgmii mode.\n"); + } else if (sdrs2_io_sel == 6) + printf(" eTSEC1 is in sgmii mode.\n"); + +#ifdef CONFIG_PCIE3 +{ + volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCIE3_ADDR; + extern void fsl_pci_init(struct pci_controller *hose); + struct pci_controller *hose = &pcie3_hose; + int pcie_ep = (host_agent == 1); + int pcie_configured = (io_sel == 7); + + if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){ + printf ("\n PCIE3 connected to Slot3 as %s (base address %x)", + pcie_ep ? "End Point" : "Root Complex", + (uint)pci); + if (pci->pme_msg_det) { + pci->pme_msg_det = 0xffffffff; + debug (" with errors. Clearing. Now 0x%08x",pci->pme_msg_det); + } + printf ("\n"); + + /* inbound */ + pci_set_region(hose->regions + 0, + CFG_PCI_MEMORY_BUS, + CFG_PCI_MEMORY_PHYS, + CFG_PCI_MEMORY_SIZE, + PCI_REGION_MEM | PCI_REGION_MEMORY); + + /* outbound memory */ + pci_set_region(hose->regions + 1, + CFG_PCIE3_MEM_BASE, + CFG_PCIE3_MEM_PHYS, + CFG_PCIE3_MEM_SIZE, + PCI_REGION_MEM); + + /* outbound io */ + pci_set_region(hose->regions + 2, + CFG_PCIE3_IO_BASE, + CFG_PCIE3_IO_PHYS, + CFG_PCIE3_IO_SIZE, + PCI_REGION_IO); + + hose->region_count = 3; + + hose->first_busno=first_free_busno; + pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data); + + fsl_pci_init(hose); + + first_free_busno=hose->last_busno+1; + printf (" PCIE3 on bus %02x - %02x\n", + hose->first_busno,hose->last_busno); + } else { + printf (" PCIE3: disabled\n"); + } + + } +#else + gur->devdisr |= MPC85xx_DEVDISR_PCIE3; /* disable */ +#endif + +#ifdef CONFIG_PCIE1 + { + volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCIE1_ADDR; + extern void fsl_pci_init(struct pci_controller *hose); + struct pci_controller *hose = &pcie1_hose; + int pcie_ep = (host_agent == 5); + int pcie_configured = (io_sel == 2 || io_sel == 3 + || io_sel == 5 || io_sel == 7); + + if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){ + printf ("\n PCIE1 connected to Slot1 as %s (base address %x)", + pcie_ep ? "End Point" : "Root Complex", + (uint)pci); + if (pci->pme_msg_det) { + pci->pme_msg_det = 0xffffffff; + debug (" with errors. Clearing. Now 0x%08x",pci->pme_msg_det); + } + printf ("\n"); + + /* inbound */ + pci_set_region(hose->regions + 0, + CFG_PCI_MEMORY_BUS, + CFG_PCI_MEMORY_PHYS, + CFG_PCI_MEMORY_SIZE, + PCI_REGION_MEM | PCI_REGION_MEMORY); + + /* outbound memory */ + pci_set_region(hose->regions + 1, + CFG_PCIE1_MEM_BASE, + CFG_PCIE1_MEM_PHYS, + CFG_PCIE1_MEM_SIZE, + PCI_REGION_MEM); + + /* outbound io */ + pci_set_region(hose->regions + 2, + CFG_PCIE1_IO_BASE, + CFG_PCIE1_IO_PHYS, + CFG_PCIE1_IO_SIZE, + PCI_REGION_IO); + + hose->region_count = 3; +#ifdef CFG_PCIE1_MEM_BASE2 + /* outbound memory */ + pci_set_region(hose->regions + 3, + CFG_PCIE1_MEM_BASE2, + CFG_PCIE1_MEM_PHYS2, + CFG_PCIE1_MEM_SIZE2, + PCI_REGION_MEM); + hose->region_count++; +#endif + hose->first_busno=first_free_busno; + + pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data); + + fsl_pci_init(hose); + + first_free_busno=hose->last_busno+1; + printf(" PCIE1 on bus %02x - %02x\n", + hose->first_busno,hose->last_busno); + + } else { + printf (" PCIE1: disabled\n"); + } + + } +#else + gur->devdisr |= MPC85xx_DEVDISR_PCIE; /* disable */ +#endif + +#ifdef CONFIG_PCIE2 + { + volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCIE2_ADDR; + extern void fsl_pci_init(struct pci_controller *hose); + struct pci_controller *hose = &pcie2_hose; + int pcie_ep = (host_agent == 3); + int pcie_configured = (io_sel == 5 || io_sel == 7); + + if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){ + printf ("\n PCIE2 connected to Slot 2 as %s (base address %x)", + pcie_ep ? "End Point" : "Root Complex", + (uint)pci); + if (pci->pme_msg_det) { + pci->pme_msg_det = 0xffffffff; + debug (" with errors. Clearing. Now 0x%08x",pci->pme_msg_det); + } + printf ("\n"); + + /* inbound */ + pci_set_region(hose->regions + 0, + CFG_PCI_MEMORY_BUS, + CFG_PCI_MEMORY_PHYS, + CFG_PCI_MEMORY_SIZE, + PCI_REGION_MEM | PCI_REGION_MEMORY); + + /* outbound memory */ + pci_set_region(hose->regions + 1, + CFG_PCIE2_MEM_BASE, + CFG_PCIE2_MEM_PHYS, + CFG_PCIE2_MEM_SIZE, + PCI_REGION_MEM); + + /* outbound io */ + pci_set_region(hose->regions + 2, + CFG_PCIE2_IO_BASE, + CFG_PCIE2_IO_PHYS, + CFG_PCIE2_IO_SIZE, + PCI_REGION_IO); + + hose->region_count = 3; +#ifdef CFG_PCIE2_MEM_BASE2 + /* outbound memory */ + pci_set_region(hose->regions + 3, + CFG_PCIE2_MEM_BASE2, + CFG_PCIE2_MEM_PHYS2, + CFG_PCIE2_MEM_SIZE2, + PCI_REGION_MEM); + hose->region_count++; +#endif + hose->first_busno=first_free_busno; + pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data); + + fsl_pci_init(hose); + first_free_busno=hose->last_busno+1; + printf (" PCIE2 on bus %02x - %02x\n", + hose->first_busno,hose->last_busno); + + } else { + printf (" PCIE2: disabled\n"); + } + + } +#else + gur->devdisr |= MPC85xx_DEVDISR_PCIE2; /* disable */ +#endif + + +#ifdef CONFIG_PCI1 +{ + volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCI1_ADDR; + extern void fsl_pci_init(struct pci_controller *hose); + struct pci_controller *hose = &pci1_hose; + + uint pci_agent = (host_agent == 6); + uint pci_speed = 66666000; /*get_clock_freq (); PCI PSPEED in [4:5] */ + uint pci_32 = 1; + uint pci_arb = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_ARB; /* PORDEVSR[14] */ + uint pci_clk_sel = gur->porpllsr & MPC85xx_PORDEVSR_PCI1_SPD; /* PORPLLSR[16] */ + + + if (!(devdisr & MPC85xx_DEVDISR_PCI1)) { + printf ("\n PCI: %d bit, %s MHz, %s, %s, %s (base address %x)\n", + (pci_32) ? 32 : 64, + (pci_speed == 33333000) ? "33" : + (pci_speed == 66666000) ? "66" : "unknown", + pci_clk_sel ? "sync" : "async", + pci_agent ? "agent" : "host", + pci_arb ? "arbiter" : "external-arbiter", + (uint)pci + ); + + /* inbound */ + pci_set_region(hose->regions + 0, + CFG_PCI_MEMORY_BUS, + CFG_PCI_MEMORY_PHYS, + CFG_PCI_MEMORY_SIZE, + PCI_REGION_MEM | PCI_REGION_MEMORY); + + /* outbound memory */ + pci_set_region(hose->regions + 1, + CFG_PCI1_MEM_BASE, + CFG_PCI1_MEM_PHYS, + CFG_PCI1_MEM_SIZE, + PCI_REGION_MEM); + + /* outbound io */ + pci_set_region(hose->regions + 2, + CFG_PCI1_IO_BASE, + CFG_PCI1_IO_PHYS, + CFG_PCI1_IO_SIZE, + PCI_REGION_IO); + hose->region_count = 3; +#ifdef CFG_PCI1_MEM_BASE2 + /* outbound memory */ + pci_set_region(hose->regions + 3, + CFG_PCI1_MEM_BASE2, + CFG_PCI1_MEM_PHYS2, + CFG_PCI1_MEM_SIZE2, + PCI_REGION_MEM); + hose->region_count++; +#endif + hose->first_busno=first_free_busno; + pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data); + + fsl_pci_init(hose); + first_free_busno=hose->last_busno+1; + printf ("PCI on bus %02x - %02x\n", + hose->first_busno,hose->last_busno); + } else { + printf (" PCI: disabled\n"); + } +} +#else + gur->devdisr |= MPC85xx_DEVDISR_PCI1; /* disable */ +#endif +} + + +int board_early_init_r(void) +{ + unsigned int i; + const unsigned int flashbase = CFG_FLASH_BASE; + const u8 flash_esel = 1; + + /* + * Remap Boot flash + PROMJET region to caching-inhibited + * so that flash can be erased properly. + */ + + /* Invalidate any remaining lines of the flash from caches. */ + for (i = 0; i < 256*1024*1024; i+=32) { + asm volatile ("dcbi %0,%1": : "b" (flashbase), "r" (i)); + asm volatile ("icbi %0,%1": : "b" (flashbase), "r" (i)); + } + + /* invalidate existing TLB entry for flash + promjet */ + disable_tlb(flash_esel); + + set_tlb(1, flashbase, flashbase, /* tlb, epn, rpn */ + MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, /* perms, wimge */ + 0, flash_esel, BOOKE_PAGESZ_256M, 1); /* ts, esel, tsize, iprot */ + + return 0; +} + +#ifdef CONFIG_GET_CLK_FROM_ICS307 +/* decode S[0-2] to Output Divider (OD) */ +static unsigned char +ics307_S_to_OD[] = { + 10, 2, 8, 4, 5, 7, 3, 6 +}; + +/* Calculate frequency being generated by ICS307-02 clock chip based upon + * the control bytes being programmed into it. */ +/* XXX: This function should probably go into a common library */ +static unsigned long +ics307_clk_freq (unsigned char cw0, unsigned char cw1, unsigned char cw2) +{ + const unsigned long long InputFrequency = CONFIG_ICS307_REFCLK_HZ; + unsigned long VDW = ((cw1 << 1) & 0x1FE) + ((cw2 >> 7) & 1); + unsigned long RDW = cw2 & 0x7F; + unsigned long OD = ics307_S_to_OD[cw0 & 0x7]; + unsigned long freq; + + /* CLK1Frequency = InputFrequency * 2 * (VDW + 8) / ((RDW + 2) * OD) */ + + /* cw0: C1 C0 TTL F1 F0 S2 S1 S0 + * cw1: V8 V7 V6 V5 V4 V3 V2 V1 + * cw2: V0 R6 R5 R4 R3 R2 R1 R0 + * + * R6:R0 = Reference Divider Word (RDW) + * V8:V0 = VCO Divider Word (VDW) + * S2:S0 = Output Divider Select (OD) + * F1:F0 = Function of CLK2 Output + * TTL = duty cycle + * C1:C0 = internal load capacitance for cyrstal + */ + + /* Adding 1 to get a "nicely" rounded number, but this needs + * more tweaking to get a "properly" rounded number. */ + + freq = 1 + (InputFrequency * 2 * (VDW + 8) / ((RDW + 2) * OD)); + + debug("ICS307: CW[0-2]: %02X %02X %02X => %u Hz\n", cw0, cw1, cw2, + freq); + return freq; +} + +unsigned long +get_board_sys_clk(ulong dummy) +{ + return ics307_clk_freq ( + in8(PIXIS_BASE + PIXIS_VSYSCLK0), + in8(PIXIS_BASE + PIXIS_VSYSCLK1), + in8(PIXIS_BASE + PIXIS_VSYSCLK2) + ); +} + +unsigned long +get_board_ddr_clk(ulong dummy) +{ + return ics307_clk_freq ( + in8(PIXIS_BASE + PIXIS_VDDRCLK0), + in8(PIXIS_BASE + PIXIS_VDDRCLK1), + in8(PIXIS_BASE + PIXIS_VDDRCLK2) + ); +} +#else +unsigned long +get_board_sys_clk(ulong dummy) +{ + u8 i; + ulong val = 0; + + i = in8(PIXIS_BASE + PIXIS_SPD); + i &= 0x07; + + switch (i) { + case 0: + val = 33333333; + break; + case 1: + val = 40000000; + break; + case 2: + val = 50000000; + break; + case 3: + val = 66666666; + break; + case 4: + val = 83333333; + break; + case 5: + val = 100000000; + break; + case 6: + val = 133333333; + break; + case 7: + val = 166666666; + break; + } + + return val; +} + +unsigned long +get_board_ddr_clk(ulong dummy) +{ + u8 i; + ulong val = 0; + + i = in8(PIXIS_BASE + PIXIS_SPD); + i &= 0x38; + i >>= 3; + + switch (i) { + case 0: + val = 33333333; + break; + case 1: + val = 40000000; + break; + case 2: + val = 50000000; + break; + case 3: + val = 66666666; + break; + case 4: + val = 83333333; + break; + case 5: + val = 100000000; + break; + case 6: + val = 133333333; + break; + case 7: + val = 166666666; + break; + } + return val; +} +#endif + +#if defined(CONFIG_OF_BOARD_SETUP) +void +ft_board_setup(void *blob, bd_t *bd) +{ + int node, tmp[2]; + const char *path; + + ft_cpu_setup(blob, bd); + + node = fdt_path_offset(blob, "/aliases"); + tmp[0] = 0; + if (node >= 0) { +#ifdef CONFIG_PCI1 + path = fdt_getprop(blob, node, "pci0", NULL); + if (path) { + tmp[1] = pci1_hose.last_busno - pci1_hose.first_busno; + do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1); + } +#endif +#ifdef CONFIG_PCIE2 + path = fdt_getprop(blob, node, "pci1", NULL); + if (path) { + tmp[1] = pcie2_hose.last_busno - pcie2_hose.first_busno; + do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1); + } +#endif +#ifdef CONFIG_PCIE1 + path = fdt_getprop(blob, node, "pci2", NULL); + if (path) { + tmp[1] = pcie1_hose.last_busno - pcie1_hose.first_busno; + do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1); + } +#endif +#ifdef CONFIG_PCIE3 + path = fdt_getprop(blob, node, "pci3", NULL); + if (path) { + tmp[1] = pcie3_hose.last_busno - pcie3_hose.first_busno; + do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1); + } +#endif + } +} +#endif |