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u-boot/board/freescale/mpc7448hpc2/tsi108_init.c
Stefan Roese a47a12becf Move arch/ppc to arch/powerpc 
As discussed on the list, move "arch/ppc" to "arch/powerpc" to
better match the Linux directory structure.

Please note that this patch also changes the "ppc" target in
MAKEALL to "powerpc" to match this new infrastructure. But "ppc"
is kept as an alias for now, to not break compatibility with
scripts using this name.

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Wolfgang Denk <wd@denx.de>
Acked-by: Detlev Zundel <dzu@denx.de>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
Cc: Peter Tyser <ptyser@xes-inc.com>
Cc: Anatolij Gustschin <agust@denx.de>
2010-04-21 23:42:38 +02:00

665 lines
20 KiB
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/*****************************************************************************
* (C) Copyright 2003; Tundra Semiconductor Corp.
*
* 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
*****************************************************************************/
/*----------------------------------------------------------------------------
* 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;
}
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