Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-12-03 01:50:25 +00:00
Code Issues Projects Releases Packages Wiki Activity
u-boot/board/freescale/mpc7448hpc2/tsi108_init.c
Wolfgang Denk 1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files 
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00

652 lines
20 KiB
C
Raw Blame History

/*****************************************************************************
* (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;
}
Reference in a new issue View git blame Copy permalink