diff options
Diffstat (limited to 'board/amcc')
| -rw-r--r-- | board/amcc/yucca/init.S | 83 | ||||
| -rw-r--r-- | board/amcc/yucca/yucca.c | 316 |
2 files changed, 28 insertions, 371 deletions
diff --git a/board/amcc/yucca/init.S b/board/amcc/yucca/init.S index c9eca686b2..c92dcf7a51 100644 --- a/board/amcc/yucca/init.S +++ b/board/amcc/yucca/init.S @@ -1,4 +1,7 @@ /* + * (C) Copyright 2007 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * * Copyright (C) 2002 Scott McNutt <smcnutt@artesyncp.com> * * See file CREDITS for list of people who contributed to this @@ -19,56 +22,10 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ -/* port to AMCC 440SPE evaluatioon board - SG April 12,2005 */ #include <ppc_asm.tmpl> #include <config.h> - -/* General */ -#define TLB_VALID 0x00000200 - -/* Supported page sizes */ - -#define SZ_1K 0x00000000 -#define SZ_4K 0x00000010 -#define SZ_16K 0x00000020 -#define SZ_64K 0x00000030 -#define SZ_256K 0x00000040 -#define SZ_1M 0x00000050 -#define SZ_16M 0x00000070 -#define SZ_256M 0x00000090 - -/* Storage attributes */ -#define SA_W 0x00000800 /* Write-through */ -#define SA_I 0x00000400 /* Caching inhibited */ -#define SA_M 0x00000200 /* Memory coherence */ -#define SA_G 0x00000100 /* Guarded */ -#define SA_E 0x00000080 /* Endian */ - -/* Access control */ -#define AC_X 0x00000024 /* Execute */ -#define AC_W 0x00000012 /* Write */ -#define AC_R 0x00000009 /* Read */ - -/* Some handy macros */ - -#define EPN(e) ((e) & 0xfffffc00) -#define TLB0(epn,sz) ((EPN((epn)) | (sz) | TLB_VALID )) -#define TLB1(rpn,erpn) (((rpn) & 0xfffffc00) | (erpn)) -#define TLB2(a) ((a) & 0x00000fbf) - -#define tlbtab_start\ - mflr r1 ;\ - bl 0f ; - -#define tlbtab_end\ - .long 0, 0, 0 ;\ -0: mflr r0 ;\ - mtlr r1 ;\ - blr ; - -#define tlbentry(epn,sz,rpn,erpn,attr)\ - .long TLB0(epn,sz),TLB1(rpn,erpn),TLB2(attr) +#include <asm-ppc/mmu.h> /************************************************************************** * TLB TABLE @@ -89,12 +46,18 @@ .globl tlbtabA tlbtabA: tlbtab_start - tlbentry(0xfff00000, SZ_16M, 0xfff00000, 4, AC_R|AC_W|AC_X|SA_G) - tlbentry(CFG_SDRAM_BASE, SZ_256M, 0x00000000, 0, AC_R|AC_W|AC_X|SA_G|SA_I) - tlbentry(CFG_SDRAM_BASE + 0x10000000, SZ_256M, 0x10000000, 0, AC_R|AC_W|AC_X|SA_G|SA_I) - tlbentry(CFG_SDRAM_BASE + 0x20000000, SZ_256M, 0x20000000, 0, AC_R|AC_W|AC_X|SA_G|SA_I) - tlbentry(CFG_SDRAM_BASE + 0x30000000, SZ_256M, 0x30000000, 0, AC_R|AC_W|AC_X|SA_G|SA_I) + /* + * BOOT_CS (FLASH) must be first. Before relocation SA_I can be off to use the + * speed up boot process. It is patched after relocation to enable SA_I + */ + tlbentry(0xff000000, SZ_16M, 0xff000000, 4, AC_R|AC_W|AC_X|SA_G) + + /* + * TLB entries for SDRAM are not needed on this platform. + * They are dynamically generated in the SPD DDR(2) detection + * routine. + */ tlbentry(CFG_ISRAM_BASE, SZ_256K, 0x00000000, 4, AC_R|AC_W|AC_X|SA_I) tlbentry(CFG_FPGA_BASE, SZ_1K, 0xE2000000, 4,AC_R|AC_W|SA_I) @@ -126,12 +89,18 @@ tlbtabA: .globl tlbtabB tlbtabB: tlbtab_start - tlbentry(0xfff00000, SZ_16M, 0xfff00000, 4, AC_R|AC_W|AC_X|SA_G) - tlbentry(CFG_SDRAM_BASE, SZ_256M, 0x00000000, 0, AC_R|AC_W|AC_X|SA_G|SA_I) - tlbentry(CFG_SDRAM_BASE + 0x10000000, SZ_256M, 0x10000000, 0, AC_R|AC_W|AC_X|SA_G|SA_I) - tlbentry(CFG_SDRAM_BASE + 0x20000000, SZ_256M, 0x20000000, 0, AC_R|AC_W|AC_X|SA_G|SA_I) - tlbentry(CFG_SDRAM_BASE + 0x30000000, SZ_256M, 0x30000000, 0, AC_R|AC_W|AC_X|SA_G|SA_I) + /* + * BOOT_CS (FLASH) must be first. Before relocation SA_I can be off to use the + * speed up boot process. It is patched after relocation to enable SA_I + */ + tlbentry(0xff000000, SZ_16M, 0xff000000, 4, AC_R|AC_W|AC_X|SA_G) + + /* + * TLB entries for SDRAM are not needed on this platform. + * They are dynamically generated in the SPD DDR(2) detection + * routine. + */ tlbentry(CFG_ISRAM_BASE, SZ_256K, 0x00000000, 4, AC_R|AC_W|AC_X|SA_I) tlbentry(CFG_FPGA_BASE, SZ_1K, 0xE2000000, 4,AC_R|AC_W|SA_I) diff --git a/board/amcc/yucca/yucca.c b/board/amcc/yucca/yucca.c index e9b34dd249..90eaab1c80 100644 --- a/board/amcc/yucca/yucca.c +++ b/board/amcc/yucca/yucca.c @@ -44,8 +44,6 @@ int compare_to_true(char *str ); char *remove_l_w_space(char *in_str ); char *remove_t_w_space(char *in_str ); int get_console_port(void); -unsigned long ppcMfcpr(unsigned long cpr_reg); -unsigned long ppcMfsdr(unsigned long sdr_reg); int ppc440spe_init_pcie_rootport(int port); void ppc440spe_setup_pcie(struct pci_controller *hose, int port); @@ -221,7 +219,7 @@ int board_early_init_f (void) | +-------------------------------------------------------------------*/ /* Read Pin Strap Register in PPC440SP */ - sdr0_pinstp = ppcMfsdr(SDR0_PINSTP); + mfsdr(SDR0_PINSTP, sdr0_pinstp); bootstrap_settings = sdr0_pinstp & SDR0_PINSTP_BOOTSTRAP_MASK; switch (bootstrap_settings) { @@ -246,7 +244,7 @@ int board_early_init_f (void) * Boot Settings in IIC EEprom address 0x50 or 0x54 * Read Serial Device Strap Register1 in PPC440SPe */ - sdr0_sdstp1 = ppcMfsdr(SDR0_SDSTP1); + mfsdr(SDR0_SDSTP1, sdr0_sdstp1); boot_selection = sdr0_sdstp1 & SDR0_SDSTP1_ERPN_MASK; ebc_data_width = sdr0_sdstp1 & SDR0_SDSTP1_EBCW_MASK; @@ -564,277 +562,6 @@ int checkboard (void) return 0; } -static long int yucca_probe_for_dimms(void) -{ - int dimm_installed[MAXDIMMS]; - int dimm_num, result; - int dimms_found = 0; - uchar dimm_addr = IIC0_DIMM0_ADDR; - uchar dimm_spd_data[MAX_SPD_BYTES]; - - for (dimm_num = 0; dimm_num < MAXDIMMS; dimm_num++) { - /* check if there is a chip at the dimm address */ - switch (dimm_num) { - case 0: - dimm_addr = IIC0_DIMM0_ADDR; - break; - case 1: - dimm_addr = IIC0_DIMM1_ADDR; - break; - } - - result = i2c_probe(dimm_addr); - - memset(dimm_spd_data, 0, MAX_SPD_BYTES * sizeof(char)); - if (result == 0) { - /* read first byte of SPD data, if there is any data */ - result = i2c_read(dimm_addr, 0, 1, dimm_spd_data, 1); - - if (result == 0) { - result = dimm_spd_data[0]; - result = result > MAX_SPD_BYTES ? - MAX_SPD_BYTES : result; - result = i2c_read(dimm_addr, 0, 1, - dimm_spd_data, result); - } - } - - if ((result == 0) && - (dimm_spd_data[64] == MICRON_SPD_JEDEC_ID)) { - dimm_installed[dimm_num] = TRUE; - dimms_found++; - debug("DIMM slot %d: DDR2 SDRAM detected\n", dimm_num); - } else { - dimm_installed[dimm_num] = FALSE; - debug("DIMM slot %d: Not populated or cannot sucessfully probe the DIMM\n", dimm_num); - } - } - - if (dimms_found == 0) { - printf("ERROR - No memory installed. Install a DDR-SDRAM DIMM.\n\n"); - hang(); - } - - if (dimm_installed[0] != TRUE) { - printf("\nERROR - DIMM slot 0 must be populated before DIMM slot 1.\n"); - printf(" Unsupported configuration. Move DIMM module from DIMM slot 1 to slot 0.\n\n"); - hang(); - } - - return dimms_found; -} - -/************************************************************************* - * init SDRAM controller with fixed value - * the initialization values are for 2x MICRON DDR2 - * PN: MT18HTF6472DY-53EB2 - * 512MB, DDR2, 533, CL4, ECC, REG - ************************************************************************/ -static long int fixed_sdram(void) -{ - long int yucca_dimms = 0; - - yucca_dimms = yucca_probe_for_dimms(); - - /* SDRAM0_MCOPT2 (0X21) Clear DCEN BIT */ - mtdcr( 0x10, 0x00000021 ); - mtdcr( 0x11, 0x84000000 ); - - /* SDRAM0_MCOPT1 (0X20) ECC OFF / 64 bits / 4 banks / DDR2 */ - mtdcr( 0x10, 0x00000020 ); - mtdcr( 0x11, 0x2D122000 ); - - /* SET MCIF0_CODT Die Termination On */ - mtdcr( 0x10, 0x00000026 ); - if (yucca_dimms == 2) - mtdcr( 0x11, 0x2A800021 ); - else if (yucca_dimms == 1) - mtdcr( 0x11, 0x02800021 ); - - /* On-Die Termination for Bank 0 */ - mtdcr( 0x10, 0x00000022 ); - if (yucca_dimms == 2) - mtdcr( 0x11, 0x18000000 ); - else if (yucca_dimms == 1) - mtdcr( 0x11, 0x06000000 ); - - /* On-Die Termination for Bank 1 */ - mtdcr( 0x10, 0x00000023 ); - if (yucca_dimms == 2) - mtdcr( 0x11, 0x18000000 ); - else if (yucca_dimms == 1) - mtdcr( 0x11, 0x01800000 ); - - /* On-Die Termination for Bank 2 */ - mtdcr( 0x10, 0x00000024 ); - if (yucca_dimms == 2) - mtdcr( 0x11, 0x01800000 ); - else if (yucca_dimms == 1) - mtdcr( 0x11, 0x00000000 ); - - /* On-Die Termination for Bank 3 */ - mtdcr( 0x10, 0x00000025 ); - if (yucca_dimms == 2) - mtdcr( 0x11, 0x01800000 ); - else if (yucca_dimms == 1) - mtdcr( 0x11, 0x00000000 ); - - /* Refresh Time register (0x30) Refresh every 7.8125uS */ - mtdcr( 0x10, 0x00000030 ); - mtdcr( 0x11, 0x08200000 ); - - /* SET MCIF0_MMODE CL 4 */ - mtdcr( 0x10, 0x00000088 ); - mtdcr( 0x11, 0x00000642 ); - - /* MCIF0_MEMODE */ - mtdcr( 0x10, 0x00000089 ); - mtdcr( 0x11, 0x00000004 ); - - /*SET MCIF0_MB0CF */ - mtdcr( 0x10, 0x00000040 ); - mtdcr( 0x11, 0x00000201 ); - - /* SET MCIF0_MB1CF */ - mtdcr( 0x10, 0x00000044 ); - mtdcr( 0x11, 0x00000201 ); - - /* SET MCIF0_MB2CF */ - mtdcr( 0x10, 0x00000048 ); - if (yucca_dimms == 2) - mtdcr( 0x11, 0x00000201 ); - else if (yucca_dimms == 1) - mtdcr( 0x11, 0x00000000 ); - - /* SET MCIF0_MB3CF */ - mtdcr( 0x10, 0x0000004c ); - if (yucca_dimms == 2) - mtdcr( 0x11, 0x00000201 ); - else if (yucca_dimms == 1) - mtdcr( 0x11, 0x00000000 ); - - /* SET MCIF0_INITPLR0 # NOP */ - mtdcr( 0x10, 0x00000050 ); - mtdcr( 0x11, 0xB5380000 ); - - /* SET MCIF0_INITPLR1 # PRE */ - mtdcr( 0x10, 0x00000051 ); - mtdcr( 0x11, 0x82100400 ); - - /* SET MCIF0_INITPLR2 # EMR2 */ - mtdcr( 0x10, 0x00000052 ); - mtdcr( 0x11, 0x80820000 ); - - /* SET MCIF0_INITPLR3 # EMR3 */ - mtdcr( 0x10, 0x00000053 ); - mtdcr( 0x11, 0x80830000 ); - - /* SET MCIF0_INITPLR4 # EMR DLL ENABLE */ - mtdcr( 0x10, 0x00000054 ); - mtdcr( 0x11, 0x80810000 ); - - /* SET MCIF0_INITPLR5 # MR DLL RESET */ - mtdcr( 0x10, 0x00000055 ); - mtdcr( 0x11, 0x80800542 ); - - /* SET MCIF0_INITPLR6 # PRE */ - mtdcr( 0x10, 0x00000056 ); - mtdcr( 0x11, 0x82100400 ); - - /* SET MCIF0_INITPLR7 # Refresh */ - mtdcr( 0x10, 0x00000057 ); - mtdcr( 0x11, 0x8A080000 ); - - /* SET MCIF0_INITPLR8 # Refresh */ - mtdcr( 0x10, 0x00000058 ); - mtdcr( 0x11, 0x8A080000 ); - - /* SET MCIF0_INITPLR9 # Refresh */ - mtdcr( 0x10, 0x00000059 ); - mtdcr( 0x11, 0x8A080000 ); - - /* SET MCIF0_INITPLR10 # Refresh */ - mtdcr( 0x10, 0x0000005A ); - mtdcr( 0x11, 0x8A080000 ); - - /* SET MCIF0_INITPLR11 # MR */ - mtdcr( 0x10, 0x0000005B ); - mtdcr( 0x11, 0x80800442 ); - - /* SET MCIF0_INITPLR12 # EMR OCD Default*/ - mtdcr( 0x10, 0x0000005C ); - mtdcr( 0x11, 0x80810380 ); - - /* SET MCIF0_INITPLR13 # EMR OCD Exit */ - mtdcr( 0x10, 0x0000005D ); - mtdcr( 0x11, 0x80810000 ); - - /* 0x80: Adv Addr clock by 180 deg */ - mtdcr( 0x10, 0x00000080 ); - mtdcr( 0x11, 0x80000000 ); - - /* 0x21: Exit self refresh, set DC_EN */ - mtdcr( 0x10, 0x00000021 ); - mtdcr( 0x11, 0x28000000 ); - - /* 0x81: Write DQS Adv 90 + Fractional DQS Delay */ - mtdcr( 0x10, 0x00000081 ); - mtdcr( 0x11, 0x80000800 ); - - /* MCIF0_SDTR1 */ - mtdcr( 0x10, 0x00000085 ); - mtdcr( 0x11, 0x80201000 ); - - /* MCIF0_SDTR2 */ - mtdcr( 0x10, 0x00000086 ); - mtdcr( 0x11, 0x42103242 ); - - /* MCIF0_SDTR3 */ - mtdcr( 0x10, 0x00000087 ); - mtdcr( 0x11, 0x0C100D14 ); - - /* SET MQ0_B0BAS base addr 00000000 / 256MB */ - mtdcr( 0x40, 0x0000F800 ); - - /* SET MQ0_B1BAS base addr 10000000 / 256MB */ - mtdcr( 0x41, 0x0400F800 ); - - /* SET MQ0_B2BAS base addr 20000000 / 256MB */ - if (yucca_dimms == 2) - mtdcr( 0x42, 0x0800F800 ); - else if (yucca_dimms == 1) - mtdcr( 0x42, 0x00000000 ); - - /* SET MQ0_B3BAS base addr 30000000 / 256MB */ - if (yucca_dimms == 2) - mtdcr( 0x43, 0x0C00F800 ); - else if (yucca_dimms == 1) - mtdcr( 0x43, 0x00000000 ); - - /* SDRAM_RQDC */ - mtdcr( 0x10, 0x00000070 ); - mtdcr( 0x11, 0x8000003F ); - - /* SDRAM_RDCC */ - mtdcr( 0x10, 0x00000078 ); - mtdcr( 0x11, 0x80000000 ); - - /* SDRAM_RFDC */ - mtdcr( 0x10, 0x00000074 ); - mtdcr( 0x11, 0x00000220 ); - - return (yucca_dimms * 512) << 20; -} - -long int initdram (int board_type) -{ - long dram_size = 0; - - dram_size = fixed_sdram(); - - return dram_size; -} - #if defined(CFG_DRAM_TEST) int testdram (void) { @@ -1267,42 +994,3 @@ int onboard_pci_arbiter_selected(int core_pci) #endif return (BOARD_OPTION_NOT_SELECTED); } - -/*---------------------------------------------------------------------------+ - | ppcMfcpr. - +---------------------------------------------------------------------------*/ -unsigned long ppcMfcpr(unsigned long cpr_reg) -{ - unsigned long msr; - unsigned long cpr_cfgaddr_temp; - unsigned long cpr_value; - - msr = (mfmsr () & ~(MSR_EE)); - cpr_cfgaddr_temp = mfdcr(CPR0_CFGADDR); - mtdcr(CPR0_CFGADDR, cpr_reg); - cpr_value = mfdcr(CPR0_CFGDATA); - mtdcr(CPR0_CFGADDR, cpr_cfgaddr_temp); - mtmsr(msr); - - return (cpr_value); -} - -/*----------------------------------------------------------------------------+ -| Indirect Access of the System DCR's (SDR) -| ppcMfsdr -+----------------------------------------------------------------------------*/ -unsigned long ppcMfsdr(unsigned long sdr_reg) -{ - unsigned long msr; - unsigned long sdr_cfgaddr_temp; - unsigned long sdr_value; - - msr = (mfmsr () & ~(MSR_EE)); - sdr_cfgaddr_temp = mfdcr(SDR0_CFGADDR); - mtdcr(SDR0_CFGADDR, sdr_reg); - sdr_value = mfdcr(SDR0_CFGDATA); - mtdcr(SDR0_CFGADDR, sdr_cfgaddr_temp); - mtmsr(msr); - - return (sdr_value); -} |
