diff options
| -rw-r--r-- | board/amcc/katmai/katmai.c | 35 | ||||
| -rw-r--r-- | board/amcc/katmai/katmai.h | 65 | ||||
| -rw-r--r-- | cpu/ppc4xx/44x_spd_ddr2.c | 375 | ||||
| -rw-r--r-- | cpu/ppc4xx/start.S | 43 | ||||
| -rw-r--r-- | cpu/ppc4xx/tlb.c | 4 | ||||
| -rw-r--r-- | include/configs/katmai.h | 21 | ||||
| -rw-r--r-- | include/ppc440.h | 6 |
7 files changed, 369 insertions, 180 deletions
diff --git a/board/amcc/katmai/katmai.c b/board/amcc/katmai/katmai.c index 8704925..fbf1a98 100644 --- a/board/amcc/katmai/katmai.c +++ b/board/amcc/katmai/katmai.c @@ -28,7 +28,6 @@ #include <i2c.h> #include <asm-ppc/io.h> -#include "katmai.h" #include "../cpu/ppc4xx/440spe_pcie.h" #undef PCIE_ENDPOINT @@ -40,7 +39,6 @@ void ppc440spe_setup_pcie(struct pci_controller *hose, int port); int board_early_init_f (void) { unsigned long mfr; - unsigned long pfc; /*----------------------------------------------------------------------+ * Interrupt controller setup for the Katmai 440SPe Evaluation board. @@ -228,15 +226,11 @@ int board_early_init_f (void) mfr &= ~SDR0_MFR_ECS_MASK; /* mtsdr(sdr_mfr, mfr); */ - /* - * Setup GPIO signalling per defines in katmai.h - */ - pfc = PFC0_KATMAI; - mtsdr(SDR0_PFC0, pfc); + mtsdr(SDR0_PFC0, CFG_PFC0); - out32(GPIO0_OR_ADDR, GPIO_OR_KATMAI); - out32(GPIO0_ODR_ADDR, GPIO_ODR_KATMAI); - out32(GPIO0_TCR_ADDR, GPIO_TCR_KATMAI); + out32(GPIO0_OR, CFG_GPIO_OR); + out32(GPIO0_ODR, CFG_GPIO_ODR); + out32(GPIO0_TCR, CFG_GPIO_TCR); return 0; } @@ -378,6 +372,23 @@ int is_pci_host(struct pci_controller *hose) return 1; } +int katmai_pcie_card_present(int port) +{ + u32 val; + + val = in32(GPIO0_IR); + switch (port) { + case 0: + return !(val & GPIO_VAL(CFG_GPIO_PCIE_PRESENT0)); + case 1: + return !(val & GPIO_VAL(CFG_GPIO_PCIE_PRESENT1)); + case 2: + return !(val & GPIO_VAL(CFG_GPIO_PCIE_PRESENT2)); + default: + return 0; + } +} + static struct pci_controller pcie_hose[3] = {{0},{0},{0}}; void pcie_setup_hoses(void) @@ -391,6 +402,10 @@ void pcie_setup_hoses(void) */ bus = 1; for (i = 0; i <= 2; i++) { + /* Check for katmai card presence */ + if (!katmai_pcie_card_present(i)) + continue; + #ifdef PCIE_ENDPOINT if (ppc440spe_init_pcie_endport(i)) { #else diff --git a/board/amcc/katmai/katmai.h b/board/amcc/katmai/katmai.h deleted file mode 100644 index 9d5b793..0000000 --- a/board/amcc/katmai/katmai.h +++ /dev/null @@ -1,65 +0,0 @@ -/* - * (C) Copyright 2007 - * Stefan Roese, DENX Software Engineering, sr@denx.de. - * - * 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 - */ - -#ifndef __KATMAI_H_ -#define __KATMAI_H_ - -/*---------------------------------------------------------------------------- - * XX - * XXXX XX XXX XXX XXXX - * XX XX XX XX XX XX - * XX XXX XX XX XX XX XX - * XX XX XXXXX XX XX XX - * XXXX XX XXXX XXXX - * XXXX - * - * The 440SPe provices 32 bits of GPIO. By default all GPIO pins - * are disabled, and must be explicitly enabled by setting a - * bit in the SDR0_PFC0 indirect DCR. Each GPIO maps 1-to-1 with the - * corresponding bit in the SDR0_PFC0 register (note that bit numbers - * reflect the PowerPC convention where bit 0 is the most-significant - * bit). - * - * Katmai specific: - * RS232_RX_EN# is held HIGH during reset by hardware, keeping the - * RS232_CTS, DSR & DCD signals coming from the MAX3411 (U26) in - * Hi-Z condition. This prevents contention between the MAX3411 (U26) - * and 74CBTLV3125PG (U2) during reset. - * - * RS232_RX_EN# is connected as GPIO pin 30. Once the processor - * is released from reset, this pin must be configured as an output and - * then driven high to enable the receive signals from the UART transciever. - *----------------------------------------------------------------------------*/ -#define GPIO_ENABLE(gpio) (0x80000000 >> (gpio)) - -#define PFC0_KATMAI GPIO_ENABLE(30) -#define GPIO_OR_KATMAI GPIO_ENABLE(30) /* Drive all outputs low except GPIO 30 */ -#define GPIO_TCR_KATMAI GPIO_ENABLE(30) -#define GPIO_ODR_KATMAI 0 /* Disable open drain for all outputs */ - -#define GPIO0_OR_ADDR (CFG_PERIPHERAL_BASE + 0x700) -#define GPIO0_TCR_ADDR (CFG_PERIPHERAL_BASE + 0x704) -#define GPIO0_ODR_ADDR (CFG_PERIPHERAL_BASE + 0x718) -#define GPIO0_IR_ADDR (CFG_PERIPHERAL_BASE + 0x71C) - -#endif /* __KATMAI_H_ */ diff --git a/cpu/ppc4xx/44x_spd_ddr2.c b/cpu/ppc4xx/44x_spd_ddr2.c index 6cff3a2..fe0f2b6 100644 --- a/cpu/ppc4xx/44x_spd_ddr2.c +++ b/cpu/ppc4xx/44x_spd_ddr2.c @@ -34,6 +34,7 @@ #endif #include <common.h> +#include <command.h> #include <ppc4xx.h> #include <i2c.h> #include <asm/io.h> @@ -43,6 +44,9 @@ #if defined(CONFIG_SPD_EEPROM) && \ (defined(CONFIG_440SP) || defined(CONFIG_440SPE)) +/*-----------------------------------------------------------------------------+ + * Defines + *-----------------------------------------------------------------------------*/ #ifndef TRUE #define TRUE 1 #endif @@ -63,17 +67,67 @@ #define MULDIV64(m1, m2, d) (u32)(((u64)(m1) * (u64)(m2)) / (u64)(d)) -#if defined(DEBUG) -static void ppc440sp_sdram_register_dump(void); -#endif +#define CMD_NOP (7 << 19) +#define CMD_PRECHARGE (2 << 19) +#define CMD_REFRESH (1 << 19) +#define CMD_EMR (0 << 19) +#define CMD_READ (5 << 19) +#define CMD_WRITE (4 << 19) + +#define SELECT_MR (0 << 16) +#define SELECT_EMR (1 << 16) +#define SELECT_EMR2 (2 << 16) +#define SELECT_EMR3 (3 << 16) + +/* MR */ +#define DLL_RESET 0x00000100 + +#define WRITE_RECOV_2 (1 << 9) +#define WRITE_RECOV_3 (2 << 9) +#define WRITE_RECOV_4 (3 << 9) +#define WRITE_RECOV_5 (4 << 9) +#define WRITE_RECOV_6 (5 << 9) + +#define BURST_LEN_4 0x00000002 + +/* EMR */ +#define ODT_0_OHM 0x00000000 +#define ODT_50_OHM 0x00000044 +#define ODT_75_OHM 0x00000004 +#define ODT_150_OHM 0x00000040 + +#define ODS_FULL 0x00000000 +#define ODS_REDUCED 0x00000002 + +/* defines for ODT (On Die Termination) of the 440SP(e) DDR2 controller */ +#define ODT_EB0R (0x80000000 >> 8) +#define ODT_EB0W (0x80000000 >> 7) +#define CALC_ODT_R(n) (ODT_EB0R << (n << 1)) +#define CALC_ODT_W(n) (ODT_EB0W << (n << 1)) +#define CALC_ODT_RW(n) (CALC_ODT_R(n) | CALC_ODT_W(n)) -/*-----------------------------------------------------------------------------+ - * Defines - *-----------------------------------------------------------------------------*/ /* Defines for the Read Cycle Delay test */ #define NUMMEMTESTS 8 #define NUMMEMWORDS 8 +#define CONFIG_ECC_ERROR_RESET /* test-only: see description below, at check_ecc() */ + +/* + * This DDR2 setup code can dynamically setup the TLB entries for the DDR2 memory + * region. Right now the cache should still be disabled in U-Boot because of the + * EMAC driver, that need it's buffer descriptor to be located in non cached + * memory. + * + * If at some time this restriction doesn't apply anymore, just define + * CFG_ENABLE_SDRAM_CACHE in the board config file and this code should setup + * everything correctly. + */ +#ifdef CFG_ENABLE_SDRAM_CACHE +#define MY_TLB_WORD2_I_ENABLE 0 /* enable caching on SDRAM */ +#else +#define MY_TLB_WORD2_I_ENABLE TLB_WORD2_I_ENABLE /* disable caching on SDRAM */ +#endif + /* Private Structure Definitions */ /* enum only to ease code for cas latency setting */ @@ -89,7 +143,7 @@ typedef enum ddr_cas_id { * Prototypes *-----------------------------------------------------------------------------*/ static unsigned long sdram_memsize(void); -void program_tlb(u32 start, u32 size); +void program_tlb(u32 start, u32 size, u32 tlb_word2_i_value); static void get_spd_info(unsigned long *dimm_populated, unsigned char *iic0_dimm_addr, unsigned long num_dimm_banks); @@ -114,7 +168,8 @@ static void program_codt(unsigned long *dimm_populated, static void program_mode(unsigned long *dimm_populated, unsigned char *iic0_dimm_addr, unsigned long num_dimm_banks, - ddr_cas_id_t *selected_cas); + ddr_cas_id_t *selected_cas, + int *write_recovery); static void program_tr(unsigned long *dimm_populated, unsigned char *iic0_dimm_addr, unsigned long num_dimm_banks); @@ -130,22 +185,30 @@ static void program_copt1(unsigned long *dimm_populated, static void program_initplr(unsigned long *dimm_populated, unsigned char *iic0_dimm_addr, unsigned long num_dimm_banks, - ddr_cas_id_t selected_cas); + ddr_cas_id_t selected_cas, + int write_recovery); static unsigned long is_ecc_enabled(void); static void program_ecc(unsigned long *dimm_populated, unsigned char *iic0_dimm_addr, - unsigned long num_dimm_banks); + unsigned long num_dimm_banks, + unsigned long tlb_word2_i_value); static void program_ecc_addr(unsigned long start_address, - unsigned long num_bytes); - + unsigned long num_bytes, + unsigned long tlb_word2_i_value); +static void program_DQS_calibration(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks); #ifdef HARD_CODED_DQS /* calibration test with hardvalues */ static void test(void); #else static void DQS_calibration_process(void); #endif -static void program_DQS_calibration(unsigned long *dimm_populated, - unsigned char *iic0_dimm_addr, - unsigned long num_dimm_banks); +#if defined(DEBUG) +static void ppc440sp_sdram_register_dump(void); +#endif +int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); +void dcbz_area(u32 start_address, u32 num_bytes); +void dflush(void); static u32 mfdcr_any(u32 dcr) { @@ -235,7 +298,7 @@ static unsigned long sdram_memsize(void) && ((mcopt2 & SDRAM_MCOPT2_SREN_MASK) == SDRAM_MCOPT2_SREN_EXIT) && ((mcstat & (SDRAM_MCSTAT_MIC_MASK | SDRAM_MCSTAT_SRMS_MASK)) == (SDRAM_MCSTAT_MIC_COMP | SDRAM_MCSTAT_SRMS_NOT_SF))) { - for (i = 0; i < 4; i++) { + for (i = 0; i < MAXBXCF; i++) { mfsdram(SDRAM_MB0CF + (i << 2), mb0cf); /* Banks enabled */ if ((mb0cf & SDRAM_BXCF_M_BE_MASK) == SDRAM_BXCF_M_BE_ENABLE) { @@ -300,14 +363,15 @@ static unsigned long sdram_memsize(void) *-----------------------------------------------------------------------------*/ long int initdram(int board_type) { + unsigned char iic0_dimm_addr[] = SPD_EEPROM_ADDRESS; unsigned char spd0[MAX_SPD_BYTES]; unsigned char spd1[MAX_SPD_BYTES]; unsigned char *dimm_spd[MAXDIMMS]; unsigned long dimm_populated[MAXDIMMS]; - unsigned char iic0_dimm_addr[MAXDIMMS]; unsigned long num_dimm_banks; /* on board dimm banks */ unsigned long val; ddr_cas_id_t selected_cas; + int write_recovery; unsigned long dram_size = 0; num_dimm_banks = sizeof(iic0_dimm_addr); @@ -319,15 +383,9 @@ long int initdram(int board_type) dimm_spd[1] = spd1; /*------------------------------------------------------------------ - * Set up an array of iic0 dimm addresses. - *-----------------------------------------------------------------*/ - iic0_dimm_addr[0] = IIC0_DIMM0_ADDR; - iic0_dimm_addr[1] = IIC0_DIMM1_ADDR; - - /*------------------------------------------------------------------ * Reset the DDR-SDRAM controller. *-----------------------------------------------------------------*/ - mtsdr(SDR0_SRST, 0x00200000); + mtsdr(SDR0_SRST, (0x80000000 >> 10)); mtsdr(SDR0_SRST, 0x00000000); /* @@ -399,7 +457,8 @@ long int initdram(int board_type) /*------------------------------------------------------------------ * Program SDRAM mode register. *-----------------------------------------------------------------*/ - program_mode(dimm_populated, iic0_dimm_addr, num_dimm_banks, &selected_cas); + program_mode(dimm_populated, iic0_dimm_addr, num_dimm_banks, + &selected_cas, &write_recovery); /*------------------------------------------------------------------ * Set the SDRAM Write Data/DM/DQS Clock Timing Reg @@ -438,7 +497,7 @@ long int initdram(int board_type) * Program Initialization preload registers. *-----------------------------------------------------------------*/ program_initplr(dimm_populated, iic0_dimm_addr, num_dimm_banks, - selected_cas); + selected_cas, write_recovery); /*------------------------------------------------------------------ * Delay to ensure 200usec have elapsed since reset. @@ -471,19 +530,17 @@ long int initdram(int board_type) dram_size = sdram_memsize(); /* and program tlb entries for this size (dynamic) */ - program_tlb(0, dram_size); + program_tlb(0, dram_size, MY_TLB_WORD2_I_ENABLE); -#if 1 /* TODO: ECC support will come later */ /*------------------------------------------------------------------ - * If ecc is enabled, initialize the parity bits. + * DQS calibration. *-----------------------------------------------------------------*/ - program_ecc(dimm_populated, iic0_dimm_addr, num_dimm_banks); -#endif + program_DQS_calibration(dimm_populated, iic0_dimm_addr, num_dimm_banks); /*------------------------------------------------------------------ - * DQS calibration. + * If ecc is enabled, initialize the parity bits. *-----------------------------------------------------------------*/ - program_DQS_calibration(dimm_populated, iic0_dimm_addr, num_dimm_banks); + program_ecc(dimm_populated, iic0_dimm_addr, num_dimm_banks, MY_TLB_WORD2_I_ENABLE); #ifdef DEBUG ppc440sp_sdram_register_dump(); @@ -996,8 +1053,8 @@ static void program_codt(unsigned long *dimm_populated, dimm_type = SDRAM_DDR1; } - total_rank += dimm_rank; - total_dimm ++; + total_rank += dimm_rank; + total_dimm++; if ((dimm_num == 0) && (total_dimm == 1)) firstSlot = TRUE; else @@ -1008,49 +1065,49 @@ static void program_codt(unsigned long *dimm_populated, codt |= SDRAM_CODT_DQS_1_8_V_DDR2; if ((total_dimm == 1) && (firstSlot == TRUE)) { if (total_rank == 1) { - codt |= 0x00800000; - modt0 = 0x01000000; + codt |= CALC_ODT_R(0); + modt0 = CALC_ODT_W(0); modt1 = 0x00000000; modt2 = 0x00000000; modt3 = 0x00000000; } if (total_rank == 2) { - codt |= 0x02800000; - modt0 = 0x06000000; - modt1 = 0x01800000; + codt |= CALC_ODT_R(0) | CALC_ODT_R(1); + modt0 = CALC_ODT_W(0); + modt1 = CALC_ODT_W(0); modt2 = 0x00000000; modt3 = 0x00000000; } - } else { + } else if ((total_dimm == 1) && (firstSlot != TRUE)) { if (total_rank == 1) { - codt |= 0x00800000; - modt0 = 0x01000000; + codt |= CALC_ODT_R(2); + modt0 = 0x00000000; modt1 = 0x00000000; - modt2 = 0x00000000; + modt2 = CALC_ODT_W(2); modt3 = 0x00000000; } if (total_rank == 2) { - codt |= 0x02800000; - modt0 = 0x06000000; - modt1 = 0x01800000; - modt2 = 0x00000000; - modt3 = 0x00000000; + codt |= CALC_ODT_R(2) | CALC_ODT_R(3); + modt0 = 0x00000000; + modt1 = 0x00000000; + modt2 = CALC_ODT_W(2); + modt3 = CALC_ODT_W(2); } } if (total_dimm == 2) { if (total_rank == 2) { - codt |= 0x08800000; - modt0 = 0x18000000; + codt |= CALC_ODT_R(0) | CALC_ODT_R(2); + modt0 = CALC_ODT_RW(2); modt1 = 0x00000000; - modt2 = 0x01800000; + modt2 = CALC_ODT_RW(0); modt3 = 0x00000000; } if (total_rank == 4) { - codt |= 0x2a800000; - modt0 = 0x18000000; - modt1 = 0x18000000; - modt2 = 0x01800000; - modt3 = 0x01800000; + codt |= CALC_ODT_R(0) | CALC_ODT_R(1) | CALC_ODT_R(2) | CALC_ODT_R(3); + modt0 = CALC_ODT_RW(2); + modt1 = 0x00000000; + modt2 = CALC_ODT_RW(0); + modt3 = 0x00000000; } } } else { @@ -1092,9 +1149,19 @@ static void program_codt(unsigned long *dimm_populated, static void program_initplr(unsigned long *dimm_populated, unsigned char *iic0_dimm_addr, unsigned long num_dimm_banks, - ddr_cas_id_t selected_cas) + ddr_cas_id_t selected_cas, + int write_recovery) { - unsigned long MR_CAS_value = 0; + u32 cas = 0; + u32 odt = 0; + u32 ods = 0; + u32 mr; + u32 wr; + u32 emr; + u32 emr2; + u32 emr3; + int dimm_num; + int total_dimm = 0; /****************************************************** ** Assumption: if more than one DIMM, all DIMMs are the same @@ -1112,41 +1179,90 @@ static void program_initplr(unsigned long *dimm_populated, mtsdram(SDRAM_INITPLR7, 0x81000062); } else if ((dimm_populated[0] == SDRAM_DDR2) || (dimm_populated[1] == SDRAM_DDR2)) { switch (selected_cas) { - /* - * The CAS latency is a field of the Mode Reg - * that need to be set from caller input. - * CAS bits in Mode Reg are starting at bit 4 at least for the Micron DDR2 - * this is the reason of the shift. - */ case DDR_CAS_3: - MR_CAS_value = 3 << 4; + cas = 3 << 4; break; case DDR_CAS_4: - MR_CAS_value = 4 << 4; + cas = 4 << 4; break; case DDR_CAS_5: - MR_CAS_value = 5 << 4; + cas = 5 << 4; break; default: - printf("ERROR: ucode error on selected_cas value %d", (unsigned char)selected_cas); + printf("ERROR: ucode error on selected_cas value %d", selected_cas); hang(); break; } - mtsdram(SDRAM_INITPLR0, 0xB5380000); /* NOP */ - mtsdram(SDRAM_INITPLR1, 0x82100400); /* precharge 8 DDR clock cycle */ - mtsdram(SDRAM_INITPLR2, 0x80820000); /* EMR2 */ - mtsdram(SDRAM_INITPLR3, 0x80830000); /* EMR3 */ - mtsdram(SDRAM_INITPLR4, 0x80810000); /* EMR DLL ENABLE */ - mtsdram(SDRAM_INITPLR5, 0x80800502 | MR_CAS_value); /* MR w/ DLL reset */ - mtsdram(SDRAM_INITPLR6, 0x82100400); /* precharge 8 DDR clock cycle */ - mtsdram(SDRAM_INITPLR7, 0x8a080000); /* Refresh 50 DDR clock cycle */ - mtsdram(SDRAM_INITPLR8, 0x8a080000); /* Refresh 50 DDR clock cycle */ - mtsdram(SDRAM_INITPLR9, 0x8a080000); /* Refresh 50 DDR clock cycle */ - mtsdram(SDRAM_INITPLR10, 0x8a080000); /* Refresh 50 DDR clock cycle */ - mtsdram(SDRAM_INITPLR11, 0x80800402 | MR_CAS_value); /* MR w/o DLL reset */ - mtsdram(SDRAM_INITPLR12, 0x80810380); /* EMR OCD Default */ - mtsdram(SDRAM_INITPLR13, 0x80810000); /* EMR OCD Exit */ +#if 0 + /* + * ToDo - Still a problem with the write recovery: + * On the Corsair CM2X512-5400C4 module, setting write recovery + * in the INITPLR reg to the value calculated in program_mode() + * results in not correctly working DDR2 memory (crash after + * relocation). + * + * So for now, set the write recovery to 3. This seems to work + * on the Corair module too. + * + * 2007-03-01, sr + */ + switch (write_recovery) { + case 3: + wr = WRITE_RECOV_3; + break; + case 4: + wr = WRITE_RECOV_4; + break; + case 5: + wr = WRITE_RECOV_5; + break; + case 6: + wr = WRITE_RECOV_6; + break; + default: + printf("ERROR: write recovery not support (%d)", write_recovery); + hang(); + break; + } +#else + wr = WRITE_RECOV_3; /* test-only, see description above */ +#endif + + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) + if (dimm_populated[dimm_num] != SDRAM_NONE) + total_dimm++; + if (total_dimm == 1) { + odt = ODT_150_OHM; + ods = ODS_FULL; + } else if (total_dimm == 2) { + odt = ODT_75_OHM; + ods = ODS_REDUCED; + } else { + printf("ERROR: Unsupported number of DIMM's (%d)", total_dimm); + hang(); + } + + mr = CMD_EMR | SELECT_MR | BURST_LEN_4 | wr | cas; + emr = CMD_EMR | SELECT_EMR | odt | ods; + emr2 = CMD_EMR | SELECT_EMR2; + emr3 = CMD_EMR | SELECT_EMR3; + mtsdram(SDRAM_INITPLR0, 0xB5000000 | CMD_NOP); /* NOP */ + udelay(1000); + mtsdram(SDRAM_INITPLR1, 0x82000400 | CMD_PRECHARGE); /* precharge 8 DDR clock cycle */ + mtsdram(SDRAM_INITPLR2, 0x80800000 | emr2); /* EMR2 */ + mtsdram(SDRAM_INITPLR3, 0x80800000 | emr3); /* EMR3 */ + mtsdram(SDRAM_INITPLR4, 0x80800000 | emr); /* EMR DLL ENABLE */ + mtsdram(SDRAM_INITPLR5, 0x80800000 | mr | DLL_RESET); /* MR w/ DLL reset */ + udelay(1000); + mtsdram(SDRAM_INITPLR6, 0x82000400 | CMD_PRECHARGE); /* precharge 8 DDR clock cycle */ + mtsdram(SDRAM_INITPLR7, 0x8a000000 | CMD_REFRESH); /* Refresh 50 DDR clock cycle */ + mtsdram(SDRAM_INITPLR8, 0x8a000000 | CMD_REFRESH); /* Refresh 50 DDR clock cycle */ + mtsdram(SDRAM_INITPLR9, 0x8a000000 | CMD_REFRESH); /* Refresh 50 DDR clock cycle */ + mtsdram(SDRAM_INITPLR10, 0x8a000000 | CMD_REFRESH); /* Refresh 50 DDR clock cycle */ + mtsdram(SDRAM_INITPLR11, 0x80000000 | mr); /* MR w/o DLL reset */ + mtsdram(SDRAM_INITPLR12, 0x80800380 | emr); /* EMR OCD Default */ + mtsdram(SDRAM_INITPLR13, 0x80800000 | emr); /* EMR OCD Exit */ } else { printf("ERROR: ucode error as unknown DDR type in program_initplr"); hang(); @@ -1161,7 +1277,8 @@ static void program_initplr(unsigned long *dimm_populated, static void program_mode(unsigned long *dimm_populated, unsigned char *iic0_dimm_addr, unsigned long num_dimm_banks, - ddr_cas_id_t *selected_cas) + ddr_cas_id_t *selected_cas, + int *write_recovery) { unsigned long dimm_num; unsigned long sdram_ddr1; @@ -1424,8 +1541,12 @@ static void program_mode(unsigned long *dimm_populated, mmode |= SDRAM_MMODE_WR_DDR2_6_CYC; break; } + *write_recovery = t_wr_clk; } + debug("CAS latency = %d\n", *selected_cas); + debug("Write recovery = %d\n", *write_recovery); + mtsdram(SDRAM_MMODE, mmode); } @@ -2017,7 +2138,8 @@ static unsigned long is_ecc_enabled(void) *-----------------------------------------------------------------------------*/ static void program_ecc(unsigned long *dimm_populated, unsigned char *iic0_dimm_addr, - unsigned long num_dimm_banks) + unsigned long num_dimm_banks, + unsigned long tlb_word2_i_value) { unsigned long mcopt1; unsigned long mcopt2; @@ -2046,23 +2168,59 @@ static void program_ecc(unsigned long *dimm_populated, && ((mcstat & (SDRAM_MCSTAT_MIC_MASK | SDRAM_MCSTAT_SRMS_MASK)) == (SDRAM_MCSTAT_MIC_COMP | SDRAM_MCSTAT_SRMS_NOT_SF))) { - program_ecc_addr(0, sdram_memsize()); + program_ecc_addr(0, sdram_memsize(), tlb_word2_i_value); } } return; } +#ifdef CONFIG_ECC_ERROR_RESET +/* + * Check for ECC errors and reset board upon any error here + * + * On the Katmai 440SPe eval board, from time to time, the first + * lword write access after DDR2 initializazion with ECC checking + * enabled, leads to an ECC error. I couldn't find a configuration + * without this happening. On my board with the current setup it + * happens about 1 from 10 times. + * + * The ECC modules used for testing are: + * - Kingston ValueRAM KVR667D2E5/512 (tested with 1 and 2 DIMM's) + * + * This has to get fixed for the Katmai and tested for the other + * board (440SP/440SPe) that will eventually use this code in the + * future. + * + * 2007-03-01, sr + */ +static void check_ecc(void) +{ + u32 val; + + mfsdram(SDRAM_ECCCR, val); + if (val != 0) { + printf("\nECC error: MCIF0_ECCES=%08lx MQ0_ESL=%08lx address=%08lx\n", + val, mfdcr(0x4c), mfdcr(0x4e)); + printf("ECC error occured, resetting board...\n"); + do_reset(NULL, 0, 0, NULL); + } +} +#endif + /*-----------------------------------------------------------------------------+ * program_ecc_addr. *-----------------------------------------------------------------------------*/ static void program_ecc_addr(unsigned long start_address, - unsigned long num_bytes) + unsigned long num_bytes, + unsigned long tlb_word2_i_value) { unsigned long current_address; unsigned long end_address; unsigned long address_increment; unsigned long mcopt1; + char str[] = "ECC generation..."; + int i; current_address = start_address; mfsdram(SDRAM_MCOPT1, mcopt1); @@ -2073,26 +2231,49 @@ static void program_ecc_addr(unsigned long start_address, eieio(); wait_ddr_idle(); - /* ECC bit set method for non-cached memory */ - if ((mcopt1 & SDRAM_MCOPT1_DMWD_MASK) == SDRAM_MCOPT1_DMWD_32) - address_increment = 4; - else - address_increment = 8; - end_address = current_address + num_bytes; + puts(str); + if (tlb_word2_i_value == TLB_WORD2_I_ENABLE) { + /* ECC bit set method for non-cached memory */ + if ((mcopt1 & SDRAM_MCOPT1_DMWD_MASK) == SDRAM_MCOPT1_DMWD_32) + address_increment = 4; + else + address_increment = 8; + end_address = current_address + num_bytes; - while (current_address < end_address) { - *((unsigned long *)current_address) = 0x00000000; - current_address += address_increment; + while (current_address < end_address) { + *((unsigned long *)current_address) = 0x00000000; + current_address += address_increment; + } + } else { + /* ECC bit set method for cached memory */ + dcbz_area(start_address, num_bytes); + dflush(); } + for (i=0; i<strlen(str); i++) + putc('\b'); + sync(); eieio(); wait_ddr_idle(); + /* clear ECC error repoting registers */ + mtsdram(SDRAM_ECCCR, 0xffffffff); + mtdcr(0x4c, 0xffffffff); + mtsdram(SDRAM_MCOPT1, - (mcopt1 & ~SDRAM_MCOPT1_MCHK_MASK) | SDRAM_MCOPT1_MCHK_CHK); + (mcopt1 & ~SDRAM_MCOPT1_MCHK_MASK) | SDRAM_MCOPT1_MCHK_CHK_REP); sync(); eieio(); wait_ddr_idle(); + +#ifdef CONFIG_ECC_ERROR_RESET + /* + * One write to 0 is enough to trigger this ECC error + * (see description above) + */ + out_be32(0, 0x12345678); + check_ecc(); +#endif } } diff --git a/cpu/ppc4xx/start.S b/cpu/ppc4xx/start.S index a3db93f..cd2ccec 100644 --- a/cpu/ppc4xx/start.S +++ b/cpu/ppc4xx/start.S @@ -1912,4 +1912,47 @@ pll_wait: TLBRE(3,3,0) blr function_epilog(mftlb1) + +/*----------------------------------------------------------------------------+ +| dcbz_area. ++----------------------------------------------------------------------------*/ + function_prolog(dcbz_area) + rlwinm. r5,r4,0,27,31 + rlwinm r5,r4,27,5,31 + beq ..d_ra2 + addi r5,r5,0x0001 +..d_ra2:mtctr r5 +..d_ag2:dcbz r0,r3 + addi r3,r3,32 + bdnz ..d_ag2 + sync + blr + function_epilog(dcbz_area) + +/*----------------------------------------------------------------------------+ +| dflush. Assume 32K at vector address is cachable. ++----------------------------------------------------------------------------*/ + function_prolog(dflush) + mfmsr r9 + rlwinm r8,r9,0,15,13 + rlwinm r8,r8,0,17,15 + mtmsr r8 + addi r3,r0,0x0000 + mtspr dvlim,r3 + mfspr r3,ivpr + addi r4,r0,1024 + mtctr r4 +..dflush_loop: + lwz r6,0x0(r3) + addi r3,r3,32 + bdnz ..dflush_loop + addi r3,r3,-32 + mtctr r4 +..ag: dcbf r0,r3 + addi r3,r3,-32 + bdnz ..ag + sync + mtmsr r9 + blr + function_epilog(dflush) #endif /* CONFIG_440 */ diff --git a/cpu/ppc4xx/tlb.c b/cpu/ppc4xx/tlb.c index 8c60559..08ae76c 100644 --- a/cpu/ppc4xx/tlb.c +++ b/cpu/ppc4xx/tlb.c @@ -166,13 +166,13 @@ static void program_tlb_addr(unsigned long base_addr, unsigned long mem_size, * Common usage for boards with SDRAM DIMM modules to dynamically * configure the TLB's for the SDRAM */ -void program_tlb(u32 start, u32 size) +void program_tlb(u32 start, u32 size, u32 tlb_word2_i_value) { region_t region_array; region_array.base = start; region_array.size = size; - region_array.tlb_word2_i_value = TLB_WORD2_I_ENABLE; /* disable cache (for now) */ + region_array.tlb_word2_i_value = tlb_word2_i_value; /* en-/disable cache */ /* Call the routine to add in the tlb entries for the memory regions */ program_tlb_addr(region_array.base, region_array.size, diff --git a/include/configs/katmai.h b/include/configs/katmai.h index c750e14..f350155 100644 --- a/include/configs/katmai.h +++ b/include/configs/katmai.h @@ -107,11 +107,8 @@ * DDR SDRAM *----------------------------------------------------------------------*/ #define CONFIG_SPD_EEPROM 1 /* Use SPD EEPROM for setup */ -#define SPD_EEPROM_ADDRESS {0x51, 0x52} /* SPD i2c spd addresses */ -#define IIC0_DIMM0_ADDR 0x51 -#define IIC0_DIMM1_ADDR 0x52 +#define SPD_EEPROM_ADDRESS {0x51, 0x52} /* SPD i2c spd addresses*/ #undef CONFIG_STRESS -#undef ENABLE_ECC /*----------------------------------------------------------------------- * I2C @@ -384,6 +381,22 @@ EBC_CFG_PME_DISABLE | \ EBC_CFG_PR_16) +/*----------------------------------------------------------------------- + * GPIO Setup + *----------------------------------------------------------------------*/ +#define CFG_GPIO_PCIE_PRESENT0 17 +#define CFG_GPIO_PCIE_PRESENT1 21 +#define CFG_GPIO_PCIE_PRESENT2 23 +#define CFG_GPIO_RS232_FORCEOFF 30 + +#define CFG_PFC0 (GPIO_VAL(CFG_GPIO_PCIE_PRESENT0) | \ + GPIO_VAL(CFG_GPIO_PCIE_PRESENT1) | \ + GPIO_VAL(CFG_GPIO_PCIE_PRESENT2) | \ + GPIO_VAL(CFG_GPIO_RS232_FORCEOFF)) +#define CFG_GPIO_OR GPIO_VAL(CFG_GPIO_RS232_FORCEOFF) +#define CFG_GPIO_TCR GPIO_VAL(CFG_GPIO_RS232_FORCEOFF) +#define CFG_GPIO_ODR 0 + /* * For booting Linux, the board info and command line data * have to be in the first 8 MB of memory, since this is diff --git a/include/ppc440.h b/include/ppc440.h index c24f5b7..1c7f11c 100644 --- a/include/ppc440.h +++ b/include/ppc440.h @@ -3190,7 +3190,8 @@ #define GPIO0 0 #define GPIO1 1 -#if defined(CONFIG_440GP) || defined(CONFIG_440GX) +#if defined(CONFIG_440GP) || defined(CONFIG_440GX) || \ + defined(CONFIG_440SP) || defined(CONFIG_440SPE) #define GPIO0_BASE (CFG_PERIPHERAL_BASE+0x00000700) #define GPIO0_OR (GPIO0_BASE+0x0) @@ -3275,6 +3276,8 @@ #define GPIO_IN_SEL 0x40000000 /* GPIO_IN value put in GPIO_ISx for the GPIO nb 0 */ /* For the other GPIO number, you must shift */ +#define GPIO_VAL(gpio) (0x80000000 >> (gpio)) + #ifndef __ASSEMBLY__ typedef enum gpio_select { GPIO_SEL, GPIO_ALT1, GPIO_ALT2, GPIO_ALT3 } gpio_select_t; @@ -3285,7 +3288,6 @@ typedef struct { unsigned long add; /* gpio core base address */ gpio_select_t alt_nb; /* Selected Alternate */ } gpio_param_s; - #endif /* __ASSEMBLY__ */ /* |