diff options
Diffstat (limited to 'board/freescale/mpc7448hpc2/tsi108_init.c')
| -rw-r--r-- | board/freescale/mpc7448hpc2/tsi108_init.c | 652 |
1 files changed, 0 insertions, 652 deletions
diff --git a/board/freescale/mpc7448hpc2/tsi108_init.c b/board/freescale/mpc7448hpc2/tsi108_init.c deleted file mode 100644 index 9a1e4075bd..0000000000 --- a/board/freescale/mpc7448hpc2/tsi108_init.c +++ /dev/null @@ -1,652 +0,0 @@ -/***************************************************************************** - * (C) Copyright 2003; Tundra Semiconductor Corp. - * - * SPDX-License-Identifier: GPL-2.0+ - *****************************************************************************/ - -/*---------------------------------------------------------------------------- - * FILENAME: tsi108_init.c - * - * Originator: Alex Bounine - * - * DESCRIPTION: - * Initialization code for the Tundra Tsi108 bridge chip - *---------------------------------------------------------------------------*/ - -#include <common.h> -#include <74xx_7xx.h> -#include <config.h> -#include <version.h> -#include <asm/processor.h> -#include <tsi108.h> - -DECLARE_GLOBAL_DATA_PTR; - -extern void mpicInit (int verbose); - -/* - * Configuration Options - */ - -typedef struct { - ulong upper; - ulong lower; -} PB2OCN_LUT_ENTRY; - -PB2OCN_LUT_ENTRY pb2ocn_lut1[32] = { - /* 0 - 7 */ - {0x00000000, 0x00000201}, /* PBA=0xE000_0000 -> PCI/X (Byte-Swap) */ - {0x00000000, 0x00000201}, /* PBA=0xE100_0000 -> PCI/X (Byte-Swap) */ - {0x00000000, 0x00000201}, /* PBA=0xE200_0000 -> PCI/X (Byte-Swap) */ - {0x00000000, 0x00000201}, /* PBA=0xE300_0000 -> PCI/X (Byte-Swap) */ - {0x00000000, 0x00000201}, /* PBA=0xE400_0000 -> PCI/X (Byte-Swap) */ - {0x00000000, 0x00000201}, /* PBA=0xE500_0000 -> PCI/X (Byte-Swap) */ - {0x00000000, 0x00000201}, /* PBA=0xE600_0000 -> PCI/X (Byte-Swap) */ - {0x00000000, 0x00000201}, /* PBA=0xE700_0000 -> PCI/X (Byte-Swap) */ - - /* 8 - 15 */ - {0x00000000, 0x00000201}, /* PBA=0xE800_0000 -> PCI/X (Byte-Swap) */ - {0x00000000, 0x00000201}, /* PBA=0xE900_0000 -> PCI/X (Byte-Swap) */ - {0x00000000, 0x00000201}, /* PBA=0xEA00_0000 -> PCI/X (Byte-Swap) */ - {0x00000000, 0x00000201}, /* PBA=0xEB00_0000 -> PCI/X (Byte-Swap) */ - {0x00000000, 0x00000201}, /* PBA=0xEC00_0000 -> PCI/X (Byte-Swap) */ - {0x00000000, 0x00000201}, /* PBA=0xED00_0000 -> PCI/X (Byte-Swap) */ - {0x00000000, 0x00000201}, /* PBA=0xEE00_0000 -> PCI/X (Byte-Swap) */ - {0x00000000, 0x00000201}, /* PBA=0xEF00_0000 -> PCI/X (Byte-Swap) */ - - /* 16 - 23 */ - {0x00000000, 0x00000201}, /* PBA=0xF000_0000 -> PCI/X (Byte-Swap) */ - {0x00000000, 0x00000201}, /* PBA=0xF100_0000 -> PCI/X (Byte-Swap) */ - {0x00000000, 0x00000201}, /* PBA=0xF200_0000 -> PCI/X (Byte-Swap) */ - {0x00000000, 0x00000201}, /* PBA=0xF300_0000 -> PCI/X (Byte-Swap) */ - {0x00000000, 0x00000201}, /* PBA=0xF400_0000 -> PCI/X (Byte-Swap) */ - {0x00000000, 0x00000201}, /* PBA=0xF500_0000 -> PCI/X (Byte-Swap) */ - {0x00000000, 0x00000201}, /* PBA=0xF600_0000 -> PCI/X (Byte-Swap) */ - {0x00000000, 0x00000201}, /* PBA=0xF700_0000 -> PCI/X (Byte-Swap) */ - /* 24 - 31 */ - {0x00000000, 0x00000201}, /* PBA=0xF800_0000 -> PCI/X (Byte-Swap) */ - {0x00000000, 0x00000201}, /* PBA=0xF900_0000 -> PCI/X (Byte-Swap) */ - {0x00000000, 0x00000241}, /* PBA=0xFA00_0000 -> PCI/X PCI I/O (Byte-Swap + Translate) */ - {0x00000000, 0x00000201}, /* PBA=0xFB00_0000 -> PCI/X PCI Config (Byte-Swap) */ - - {0x00000000, 0x02000240}, /* PBA=0xFC00_0000 -> HLP */ - {0x00000000, 0x01000240}, /* PBA=0xFD00_0000 -> HLP */ - {0x00000000, 0x03000240}, /* PBA=0xFE00_0000 -> HLP */ - {0x00000000, 0x00000240} /* PBA=0xFF00_0000 -> HLP : (Translation Enabled + Byte-Swap)*/ -}; - -#ifdef CONFIG_SYS_CLK_SPREAD -typedef struct { - ulong ctrl0; - ulong ctrl1; -} PLL_CTRL_SET; - -/* - * Clock Generator SPLL0 initialization values - * PLL0 configuration table for various PB_CLKO freq. - * Uses pre-calculated values for Fs = 30 kHz, D = 0.5% - * Fout depends on required PB_CLKO. Based on Fref = 33 MHz - */ - -static PLL_CTRL_SET pll0_config[8] = { - {0x00000000, 0x00000000}, /* 0: bypass */ - {0x00000000, 0x00000000}, /* 1: reserved */ - {0x00430044, 0x00000043}, /* 2: CG_PB_CLKO = 183 MHz */ - {0x005c0044, 0x00000039}, /* 3: CG_PB_CLKO = 100 MHz */ - {0x005c0044, 0x00000039}, /* 4: CG_PB_CLKO = 133 MHz */ - {0x004a0044, 0x00000040}, /* 5: CG_PB_CLKO = 167 MHz */ - {0x005c0044, 0x00000039}, /* 6: CG_PB_CLKO = 200 MHz */ - {0x004f0044, 0x0000003e} /* 7: CG_PB_CLKO = 233 MHz */ -}; -#endif /* CONFIG_SYS_CLK_SPREAD */ - -/* - * Prosessor Bus Clock (in MHz) defined by CG_PB_SELECT - * (based on recommended Tsi108 reference clock 33MHz) - */ -static int pb_clk_sel[8] = { 0, 0, 183, 100, 133, 167, 200, 233 }; - -/* - * get_board_bus_clk () - * - * returns the bus clock in Hz. - */ -unsigned long get_board_bus_clk (void) -{ - ulong i; - - /* Detect PB clock freq. */ - i = in32(CONFIG_SYS_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PWRUP_STATUS); - i = (i >> 16) & 0x07; /* Get PB PLL multiplier */ - - return pb_clk_sel[i] * 1000000; -} - -/* - * board_early_init_f () - * - * board-specific initialization executed from flash - */ - -int board_early_init_f (void) -{ - ulong i; - - gd->mem_clk = 0; - i = in32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + - CG_PWRUP_STATUS); - i = (i >> 20) & 0x07; /* Get GD PLL multiplier */ - switch (i) { - case 0: /* external clock */ - printf ("Using external clock\n"); - break; - case 1: /* system clock */ - gd->mem_clk = gd->bus_clk; - break; - case 4: /* 133 MHz */ - case 5: /* 166 MHz */ - case 6: /* 200 MHz */ - gd->mem_clk = pb_clk_sel[i] * 1000000; - break; - default: - printf ("Invalid DDR2 clock setting\n"); - return -1; - } - printf ("BUS: %lu MHz\n", get_board_bus_clk() / 1000000); - printf ("MEM: %lu MHz\n", gd->mem_clk / 1000000); - return 0; -} - -/* - * board_early_init_r() - Tsi108 initialization function executed right after - * relocation. Contains code that cannot be executed from flash. - */ - -int board_early_init_r (void) -{ - ulong temp, i; - ulong reg_val; - volatile ulong *reg_ptr; - - reg_ptr = - (ulong *) (CONFIG_SYS_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + 0x900); - - for (i = 0; i < 32; i++) { - *reg_ptr++ = 0x00000201; /* SWAP ENABLED */ - *reg_ptr++ = 0x00; - } - - __asm__ __volatile__ ("eieio"); - __asm__ __volatile__ ("sync"); - - /* Setup PB_OCN_BAR2: size 256B + ENable @ 0x0_80000000 */ - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + PB_OCN_BAR2, - 0x80000001); - __asm__ __volatile__ ("sync"); - - /* Make sure that OCN_BAR2 decoder is set (to allow following immediate - * read from SDRAM) - */ - - temp = in32(CONFIG_SYS_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + PB_OCN_BAR2); - __asm__ __volatile__ ("sync"); - - /* - * Remap PB_OCN_BAR1 to accomodate PCI-bus aperture and EPROM into the - * processor bus address space. Immediately after reset LUT and address - * translation are disabled for this BAR. Now we have to initialize LUT - * and switch from the BOOT mode to the normal operation mode. - * - * The aperture defined by PB_OCN_BAR1 startes at address 0xE0000000 - * and covers 512MB of address space. To allow larger aperture we also - * have to relocate register window of Tsi108 - * - * Initialize LUT (32-entries) prior switching PB_OCN_BAR1 from BOOT - * mode. - * - * initialize pointer to LUT associated with PB_OCN_BAR1 - */ - reg_ptr = - (ulong *) (CONFIG_SYS_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + 0x800); - - for (i = 0; i < 32; i++) { - *reg_ptr++ = pb2ocn_lut1[i].lower; - *reg_ptr++ = pb2ocn_lut1[i].upper; - } - - __asm__ __volatile__ ("sync"); - - /* Base addresses for CS0, CS1, CS2, CS3 */ - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B0_ADDR, - 0x00000000); - __asm__ __volatile__ ("sync"); - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B1_ADDR, - 0x00100000); - __asm__ __volatile__ ("sync"); - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B2_ADDR, - 0x00200000); - __asm__ __volatile__ ("sync"); - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B3_ADDR, - 0x00300000); - __asm__ __volatile__ ("sync"); - - /* Masks for HLP banks */ - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B0_MASK, - 0xFFF00000); - __asm__ __volatile__ ("sync"); - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B1_MASK, - 0xFFF00000); - __asm__ __volatile__ ("sync"); - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B2_MASK, - 0xFFF00000); - __asm__ __volatile__ ("sync"); - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B3_MASK, - 0xFFF00000); - __asm__ __volatile__ ("sync"); - - /* Set CTRL0 values for banks */ - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B0_CTRL0, - 0x7FFC44C2); - __asm__ __volatile__ ("sync"); - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B1_CTRL0, - 0x7FFC44C0); - __asm__ __volatile__ ("sync"); - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B2_CTRL0, - 0x7FFC44C0); - __asm__ __volatile__ ("sync"); - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B3_CTRL0, - 0x7FFC44C2); - __asm__ __volatile__ ("sync"); - - /* Set banks to latched mode, enabled, and other default settings */ - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B0_CTRL1, - 0x7C0F2000); - __asm__ __volatile__ ("sync"); - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B1_CTRL1, - 0x7C0F2000); - __asm__ __volatile__ ("sync"); - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B2_CTRL1, - 0x7C0F2000); - __asm__ __volatile__ ("sync"); - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B3_CTRL1, - 0x7C0F2000); - __asm__ __volatile__ ("sync"); - - /* - * Set new value for PB_OCN_BAR1: switch from BOOT to LUT mode. - * value for PB_OCN_BAR1: (BA-0xE000_0000 + size 512MB + ENable) - */ - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + PB_OCN_BAR1, - 0xE0000011); - __asm__ __volatile__ ("sync"); - - /* Make sure that OCN_BAR2 decoder is set (to allow following - * immediate read from SDRAM) - */ - - temp = in32(CONFIG_SYS_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + PB_OCN_BAR1); - __asm__ __volatile__ ("sync"); - - /* - * SRI: At this point we have enabled the HLP banks. That means we can - * now read from the NVRAM and initialize the environment variables. - * We will over-ride the env_init called in board_init_f - * This is really a work-around because, the HLP bank 1 - * where NVRAM resides is not visible during board_init_f - * (arch/powerpc/lib/board.c) - * Alternatively, we could use the I2C EEPROM at start-up to configure - * and enable all HLP banks and not just HLP 0 as is being done for - * Taiga Rev. 2. - */ - - env_init (); - -#ifndef DISABLE_PBM - - /* - * For IBM processors we have to set Address-Only commands generated - * by PBM that are different from ones set after reset. - */ - - temp = get_cpu_type (); - - if ((CPU_750FX == temp) || (CPU_750GX == temp)) - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + PB_MCMD, - 0x00009955); -#endif /* DISABLE_PBM */ - -#ifdef CONFIG_PCI - /* - * Initialize PCI/X block - */ - - /* Map PCI/X Configuration Space (16MB @ 0x0_FE000000) */ - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + - PCI_PFAB_BAR0_UPPER, 0); - __asm__ __volatile__ ("sync"); - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_PFAB_BAR0, - 0xFB000001); - __asm__ __volatile__ ("sync"); - - /* Set Bus Number for the attached PCI/X bus (we will use 0 for NB) */ - - temp = in32(CONFIG_SYS_TSI108_CSR_BASE + - TSI108_PCI_REG_OFFSET + PCI_PCIX_STAT); - - temp &= ~0xFF00; /* Clear the BUS_NUM field */ - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_PCIX_STAT, - temp); - - /* Map PCI/X IO Space (64KB @ 0x0_FD000000) takes one 16MB LUT entry */ - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_PFAB_IO_UPPER, - 0); - __asm__ __volatile__ ("sync"); - - /* This register is on the PCI side to interpret the address it receives - * and maps it as a IO address. - */ - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_PFAB_IO, - 0x00000001); - __asm__ __volatile__ ("sync"); - - /* - * Map PCI/X Memory Space - * - * Transactions directed from OCM to PCI Memory Space are directed - * from PB to PCI - * unchanged (as defined by PB_OCN_BAR1,2 and LUT settings). - * If address remapping is required the corresponding PCI_PFAB_MEM32 - * and PCI_PFAB_PFMx register groups have to be configured. - * - * Map the path from the PCI/X bus into the system memory - * - * The memory mapped window assotiated with PCI P2O_BAR2 provides - * access to the system memory without address remapping. - * All system memory is opened for accesses initiated by PCI/X bus - * masters. - * - * Initialize LUT associated with PCI P2O_BAR2 - * - * set pointer to LUT associated with PCI P2O_BAR2 - */ - - reg_ptr = - (ulong *) (CONFIG_SYS_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + 0x500); - -#ifdef DISABLE_PBM - - /* In case when PBM is disabled (no HW supported cache snoopng on PB) - * P2O_BAR2 is directly mapped into the system memory without address - * translation. - */ - - reg_val = 0x00000004; /* SDRAM port + NO Addr_Translation */ - - for (i = 0; i < 32; i++) { - *reg_ptr++ = reg_val; /* P2O_BAR2_LUTx */ - *reg_ptr++ = 0; /* P2O_BAR2_LUT_UPPERx */ - } - - /* value for PCI BAR2 (size = 512MB, Enabled, No Addr. Translation) */ - reg_val = 0x00007500; -#else - - reg_val = 0x00000002; /* Destination port = PBM */ - - for (i = 0; i < 32; i++) { - *reg_ptr++ = reg_val; /* P2O_BAR2_LUTx */ -/* P2O_BAR2_LUT_UPPERx : Set data swapping mode for PBM (byte swapping) */ - *reg_ptr++ = 0x40000000; -/* offset = 16MB, address translation is enabled to allow byte swapping */ - reg_val += 0x01000000; - } - -/* value for PCI BAR2 (size = 512MB, Enabled, Address Translation Enabled) */ - reg_val = 0x00007100; -#endif - - __asm__ __volatile__ ("eieio"); - __asm__ __volatile__ ("sync"); - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_PAGE_SIZES, - reg_val); - __asm__ __volatile__ ("sync"); - - /* Set 64-bit PCI bus address for system memory - * ( 0 is the best choice for easy mapping) - */ - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_BAR2, - 0x00000000); - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_BAR2_UPPER, - 0x00000000); - __asm__ __volatile__ ("sync"); - -#ifndef DISABLE_PBM - /* - * The memory mapped window assotiated with PCI P2O_BAR3 provides - * access to the system memory using SDRAM OCN port and address - * translation. This is alternative way to access SDRAM from PCI - * required for Tsi108 emulation testing. - * All system memory is opened for accesses initiated by - * PCI/X bus masters. - * - * Initialize LUT associated with PCI P2O_BAR3 - * - * set pointer to LUT associated with PCI P2O_BAR3 - */ - reg_ptr = - (ulong *) (CONFIG_SYS_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + 0x600); - - reg_val = 0x00000004; /* Destination port = SDC */ - - for (i = 0; i < 32; i++) { - *reg_ptr++ = reg_val; /* P2O_BAR3_LUTx */ - -/* P2O_BAR3_LUT_UPPERx : Set data swapping mode for PBM (byte swapping) */ - *reg_ptr++ = 0; - -/* offset = 16MB, address translation is enabled to allow byte swapping */ - reg_val += 0x01000000; - } - - __asm__ __volatile__ ("eieio"); - __asm__ __volatile__ ("sync"); - - /* Configure PCI P2O_BAR3 (size = 512MB, Enabled) */ - - reg_val = - in32(CONFIG_SYS_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + - PCI_P2O_PAGE_SIZES); - reg_val &= ~0x00FF; - reg_val |= 0x0071; - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_PAGE_SIZES, - reg_val); - __asm__ __volatile__ ("sync"); - - /* Set 64-bit base PCI bus address for window (0x20000000) */ - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_BAR3_UPPER, - 0x00000000); - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_BAR3, - 0x20000000); - __asm__ __volatile__ ("sync"); - -#endif /* !DISABLE_PBM */ - -#ifdef ENABLE_PCI_CSR_BAR - /* open if required access to Tsi108 CSRs from the PCI/X bus */ - /* enable BAR0 on the PCI/X bus */ - reg_val = in32(CONFIG_SYS_TSI108_CSR_BASE + - TSI108_PCI_REG_OFFSET + PCI_MISC_CSR); - reg_val |= 0x02; - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_MISC_CSR, - reg_val); - __asm__ __volatile__ ("sync"); - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_BAR0_UPPER, - 0x00000000); - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_BAR0, - CONFIG_SYS_TSI108_CSR_BASE); - __asm__ __volatile__ ("sync"); - -#endif - - /* - * Finally enable PCI/X Bus Master and Memory Space access - */ - - reg_val = in32(CONFIG_SYS_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_CSR); - reg_val |= 0x06; - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_CSR, reg_val); - __asm__ __volatile__ ("sync"); - -#endif /* CONFIG_PCI */ - - /* - * Initialize MPIC outputs (interrupt pins): - * Interrupt routing on the Grendel Emul. Board: - * PB_INT[0] -> INT (CPU0) - * PB_INT[1] -> INT (CPU1) - * PB_INT[2] -> MCP (CPU0) - * PB_INT[3] -> MCP (CPU1) - * Set interrupt controller outputs as Level_Sensitive/Active_Low - */ - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_MPIC_REG_OFFSET + MPIC_CSR(0), 0x02); - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_MPIC_REG_OFFSET + MPIC_CSR(1), 0x02); - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_MPIC_REG_OFFSET + MPIC_CSR(2), 0x02); - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_MPIC_REG_OFFSET + MPIC_CSR(3), 0x02); - __asm__ __volatile__ ("sync"); - - /* - * Ensure that Machine Check exception is enabled - * We need it to support PCI Bus probing (configuration reads) - */ - - reg_val = mfmsr (); - mtmsr(reg_val | MSR_ME); - - return 0; -} - -/* - * Needed to print out L2 cache info - * used in the misc_init_r function - */ - -unsigned long get_l2cr (void) -{ - unsigned long l2controlreg; - asm volatile ("mfspr %0, 1017":"=r" (l2controlreg):); - return l2controlreg; -} - -/* - * misc_init_r() - * - * various things to do after relocation - * - */ - -int misc_init_r (void) -{ -#ifdef CONFIG_SYS_CLK_SPREAD /* Initialize Spread-Spectrum Clock generation */ - ulong i; - - /* Ensure that Spread-Spectrum is disabled */ - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PLL0_CTRL0, 0); - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PLL1_CTRL0, 0); - - /* Initialize PLL1: CG_PCI_CLK , internal OCN_CLK - * Uses pre-calculated value for Fout = 800 MHz, Fs = 30 kHz, D = 0.5% - */ - - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PLL1_CTRL0, - 0x002e0044); /* D = 0.25% */ - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PLL1_CTRL1, - 0x00000039); /* BWADJ */ - - /* Initialize PLL0: CG_PB_CLKO */ - /* Detect PB clock freq. */ - i = in32(CONFIG_SYS_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PWRUP_STATUS); - i = (i >> 16) & 0x07; /* Get PB PLL multiplier */ - - out32 (CONFIG_SYS_TSI108_CSR_BASE + - TSI108_CLK_REG_OFFSET + CG_PLL0_CTRL0, pll0_config[i].ctrl0); - out32 (CONFIG_SYS_TSI108_CSR_BASE + - TSI108_CLK_REG_OFFSET + CG_PLL0_CTRL1, pll0_config[i].ctrl1); - - /* Wait and set SSEN for both PLL0 and 1 */ - udelay (1000); - out32 (CONFIG_SYS_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PLL1_CTRL0, - 0x802e0044); /* D=0.25% */ - out32 (CONFIG_SYS_TSI108_CSR_BASE + - TSI108_CLK_REG_OFFSET + CG_PLL0_CTRL0, - 0x80000000 | pll0_config[i].ctrl0); -#endif /* CONFIG_SYS_CLK_SPREAD */ - -#ifdef CONFIG_SYS_L2 - l2cache_enable (); -#endif - printf ("BUS: %lu MHz\n", gd->bus_clk / 1000000); - printf ("MEM: %lu MHz\n", gd->mem_clk / 1000000); - - /* - * All the information needed to print the cache details is avaiblable - * at this point i.e. above call to l2cache_enable is the very last - * thing done with regards to enabling diabling the cache. - * So this seems like a good place to print all this information - */ - - printf ("CACHE: "); - switch (get_cpu_type()) { - case CPU_7447A: - printf ("L1 Instruction cache - 32KB 8-way"); - (get_hid0 () & (1 << 15)) ? printf (" ENABLED\n") : - printf (" DISABLED\n"); - printf ("L1 Data cache - 32KB 8-way"); - (get_hid0 () & (1 << 14)) ? printf (" ENABLED\n") : - printf (" DISABLED\n"); - printf ("Unified L2 cache - 512KB 8-way"); - (get_l2cr () & (1 << 31)) ? printf (" ENABLED\n") : - printf (" DISABLED\n"); - printf ("\n"); - break; - - case CPU_7448: - printf ("L1 Instruction cache - 32KB 8-way"); - (get_hid0 () & (1 << 15)) ? printf (" ENABLED\n") : - printf (" DISABLED\n"); - printf ("L1 Data cache - 32KB 8-way"); - (get_hid0 () & (1 << 14)) ? printf (" ENABLED\n") : - printf (" DISABLED\n"); - printf ("Unified L2 cache - 1MB 8-way"); - (get_l2cr () & (1 << 31)) ? printf (" ENABLED\n") : - printf (" DISABLED\n"); - break; - default: - break; - } - return 0; -} |
