diff options
-rw-r--r-- | board/amcc/luan/luan.c | 7 | ||||
-rw-r--r-- | board/amcc/yucca/yucca.c | 34 | ||||
-rw-r--r-- | board/lwmon5/sdram.c | 1 | ||||
-rw-r--r-- | cpu/ppc4xx/44x_spd_ddr.c | 1 | ||||
-rw-r--r-- | cpu/ppc4xx/44x_spd_ddr2.c | 58 | ||||
-rw-r--r-- | cpu/ppc4xx/4xx_enet.c | 8 | ||||
-rw-r--r-- | cpu/ppc4xx/tlb.c | 62 | ||||
-rw-r--r-- | include/asm-ppc/mmu.h | 3 | ||||
-rw-r--r-- | include/configs/luan.h | 1 | ||||
-rw-r--r-- | include/configs/lwmon5.h | 3 |
10 files changed, 157 insertions, 21 deletions
diff --git a/board/amcc/luan/luan.c b/board/amcc/luan/luan.c index 2eff3b3..7b16f8a 100644 --- a/board/amcc/luan/luan.c +++ b/board/amcc/luan/luan.c @@ -104,6 +104,13 @@ int checkboard(void) return 0; } +/* + * Override the default functions in cpu/ppc4xx/44x_spd_ddr2.c with + * board specific values. + */ +u32 ddr_clktr(u32 default_val) { + return (SDRAM_CLKTR_CLKP_180_DEG_ADV); +} /************************************************************************* * int testdram() diff --git a/board/amcc/yucca/yucca.c b/board/amcc/yucca/yucca.c index 7316c34..d08fcf3 100644 --- a/board/amcc/yucca/yucca.c +++ b/board/amcc/yucca/yucca.c @@ -562,6 +562,40 @@ int checkboard (void) return 0; } +/* + * Override the default functions in cpu/ppc4xx/44x_spd_ddr2.c with + * board specific values. + */ +static int ppc440spe_rev_a(void) +{ + if ((get_pvr() == PVR_440SPe_6_RA) || (get_pvr() == PVR_440SPe_RA)) + return 1; + else + return 0; +} + +u32 ddr_wrdtr(u32 default_val) { + /* + * Yucca boards with 440SPe rev. A need a slightly different setup + * for the MCIF0_WRDTR register. + */ + if (ppc440spe_rev_a()) + return (SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_270_DEG_ADV); + + return default_val; +} + +u32 ddr_clktr(u32 default_val) { + /* + * Yucca boards with 440SPe rev. A need a slightly different setup + * for the MCIF0_CLKTR register. + */ + if (ppc440spe_rev_a()) + return (SDRAM_CLKTR_CLKP_180_DEG_ADV); + + return default_val; +} + #if defined(CFG_DRAM_TEST) int testdram (void) { diff --git a/board/lwmon5/sdram.c b/board/lwmon5/sdram.c index 9a4a8ee..b6863b6 100644 --- a/board/lwmon5/sdram.c +++ b/board/lwmon5/sdram.c @@ -54,7 +54,6 @@ #define MY_TLB_WORD2_I_ENABLE TLB_WORD2_I_ENABLE /* disable caching on SDRAM */ #endif -void program_tlb(u32 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value); void dcbz_area(u32 start_address, u32 num_bytes); void dflush(void); diff --git a/cpu/ppc4xx/44x_spd_ddr.c b/cpu/ppc4xx/44x_spd_ddr.c index 6d6fba1..e5f296e 100644 --- a/cpu/ppc4xx/44x_spd_ddr.c +++ b/cpu/ppc4xx/44x_spd_ddr.c @@ -271,7 +271,6 @@ typedef struct bank_param BANKPARMS; #ifdef CFG_SIMULATE_SPD_EEPROM extern unsigned char cfg_simulate_spd_eeprom[128]; #endif -void program_tlb(u32 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value); static unsigned char spd_read(uchar chip, uint addr); static void get_spd_info(unsigned long *dimm_populated, diff --git a/cpu/ppc4xx/44x_spd_ddr2.c b/cpu/ppc4xx/44x_spd_ddr2.c index 5fef27b..18b90ba 100644 --- a/cpu/ppc4xx/44x_spd_ddr2.c +++ b/cpu/ppc4xx/44x_spd_ddr2.c @@ -109,7 +109,7 @@ /* Defines for the Read Cycle Delay test */ #define NUMMEMTESTS 8 #define NUMMEMWORDS 8 -#define NUMLOOPS 256 /* memory test loops */ +#define NUMLOOPS 64 /* memory test loops */ #undef CONFIG_ECC_ERROR_RESET /* test-only: see description below, at check_ecc() */ @@ -138,6 +138,26 @@ void __spd_ddr_init_hang (void) } void spd_ddr_init_hang (void) __attribute__((weak, alias("__spd_ddr_init_hang"))); +/* + * To provide an interface for board specific config values in this common + * DDR setup code, we implement he "weak" default functions here. They return + * the default value back to the caller. + * + * Please see include/configs/yucca.h for an example fora board specific + * implementation. + */ +u32 __ddr_wrdtr(u32 default_val) +{ + return default_val; +} +u32 ddr_wrdtr(u32) __attribute__((weak, alias("__ddr_wrdtr"))); + +u32 __ddr_clktr(u32 default_val) +{ + return default_val; +} +u32 ddr_clktr(u32) __attribute__((weak, alias("__ddr_clktr"))); + /* Private Structure Definitions */ @@ -154,7 +174,6 @@ typedef enum ddr_cas_id { * Prototypes *-----------------------------------------------------------------------------*/ static unsigned long sdram_memsize(void); -void program_tlb(u32 phys_addr, u32 virt_addr, 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); @@ -216,9 +235,7 @@ static void test(void); #else static void DQS_calibration_process(void); #endif -#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); @@ -469,17 +486,14 @@ long int initdram(int board_type) *-----------------------------------------------------------------*/ mfsdram(SDRAM_WRDTR, val); mtsdram(SDRAM_WRDTR, (val & ~(SDRAM_WRDTR_LLWP_MASK | SDRAM_WRDTR_WTR_MASK)) | - (SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_90_DEG_ADV)); + ddr_wrdtr(SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_90_DEG_ADV)); /*------------------------------------------------------------------ * Set the SDRAM Clock Timing Register *-----------------------------------------------------------------*/ mfsdram(SDRAM_CLKTR, val); -#ifdef CFG_44x_DDR2_CKTR_180 - mtsdram(SDRAM_CLKTR, (val & ~SDRAM_CLKTR_CLKP_MASK) | SDRAM_CLKTR_CLKP_180_DEG_ADV); -#else - mtsdram(SDRAM_CLKTR, (val & ~SDRAM_CLKTR_CLKP_MASK) | SDRAM_CLKTR_CLKP_0_DEG); -#endif + mtsdram(SDRAM_CLKTR, (val & ~SDRAM_CLKTR_CLKP_MASK) | + ddr_clktr(SDRAM_CLKTR_CLKP_0_DEG)); /*------------------------------------------------------------------ * Program the BxCF registers. @@ -538,7 +552,12 @@ long int initdram(int board_type) dram_size = sdram_memsize(); /* and program tlb entries for this size (dynamic) */ - program_tlb(0, 0, dram_size, MY_TLB_WORD2_I_ENABLE); + + /* + * Program TLB entries with caches enabled, for best performace + * while auto-calibrating and ECC generation + */ + program_tlb(0, 0, dram_size, 0); /*------------------------------------------------------------------ * DQS calibration. @@ -549,12 +568,18 @@ long int initdram(int board_type) /*------------------------------------------------------------------ * If ecc is enabled, initialize the parity bits. *-----------------------------------------------------------------*/ - program_ecc(dimm_populated, iic0_dimm_addr, num_dimm_banks, MY_TLB_WORD2_I_ENABLE); + program_ecc(dimm_populated, iic0_dimm_addr, num_dimm_banks, 0); #endif -#ifdef DEBUG + /* + * Now after initialization (auto-calibration and ECC generation) + * remove the TLB entries with caches enabled and program again with + * desired cache functionality + */ + remove_tlb(0, dram_size); + program_tlb(0, 0, dram_size, MY_TLB_WORD2_I_ENABLE); + ppc440sp_sdram_register_dump(); -#endif return dram_size; } @@ -2703,6 +2728,7 @@ calibration_loop: printf("\nERROR: Cannot determine a common read delay for the " "DIMM(s) installed.\n"); debug("%s[%d] ERROR : \n", __FUNCTION__,__LINE__); + ppc440sp_sdram_register_dump(); spd_ddr_init_hang (); } @@ -3028,5 +3054,9 @@ static void ppc440sp_sdram_register_dump(void) dcr_data = mfdcr(SDRAM_R3BAS); printf(" MQ3_B0BAS = 0x%08X\n", dcr_data); } +#else +static void ppc440sp_sdram_register_dump(void) +{ +} #endif #endif /* CONFIG_SPD_EEPROM */ diff --git a/cpu/ppc4xx/4xx_enet.c b/cpu/ppc4xx/4xx_enet.c index 1200d02..b90363f 100644 --- a/cpu/ppc4xx/4xx_enet.c +++ b/cpu/ppc4xx/4xx_enet.c @@ -1415,10 +1415,8 @@ static void enet_rcv (struct eth_device *dev, unsigned long malisr) if ((MAL_RX_CTRL_EMPTY & hw_p->rx[i].ctrl) || (loop_count >= NUM_RX_BUFF)) break; + loop_count++; - hw_p->rx_slot++; - if (NUM_RX_BUFF == hw_p->rx_slot) - hw_p->rx_slot = 0; handled++; data_len = (unsigned long) hw_p->rx[i].data_len; /* Get len */ if (data_len) { @@ -1468,6 +1466,10 @@ static void enet_rcv (struct eth_device *dev, unsigned long malisr) if (NUM_RX_BUFF == hw_p->rx_i_index) hw_p->rx_i_index = 0; + hw_p->rx_slot++; + if (NUM_RX_BUFF == hw_p->rx_slot) + hw_p->rx_slot = 0; + /* AS.HARNOIS * free receive buffer only when * buffer has been handled (eth_rx) diff --git a/cpu/ppc4xx/tlb.c b/cpu/ppc4xx/tlb.c index 049a785..098694c 100644 --- a/cpu/ppc4xx/tlb.c +++ b/cpu/ppc4xx/tlb.c @@ -25,7 +25,6 @@ #if defined(CONFIG_440) -#include <ppc4xx.h> #include <ppc440.h> #include <asm/io.h> #include <asm/mmu.h> @@ -36,6 +35,67 @@ typedef struct region { unsigned long tlb_word2_i_value; } region_t; +void remove_tlb(u32 vaddr, u32 size) +{ + int i; + u32 tlb_word0_value; + u32 tlb_vaddr; + u32 tlb_size = 0; + + /* First, find the index of a TLB entry not being used */ + for (i=0; i<PPC4XX_TLB_SIZE; i++) { + tlb_word0_value = mftlb1(i); + tlb_vaddr = TLB_WORD0_EPN_DECODE(tlb_word0_value); + if (((tlb_word0_value & TLB_WORD0_V_MASK) == TLB_WORD0_V_ENABLE) && + (tlb_vaddr >= vaddr)) { + /* + * TLB is enabled and start address is lower or equal + * than the area we are looking for. Now we only have + * to check the size/end address for a match. + */ + switch (tlb_word0_value & TLB_WORD0_SIZE_MASK) { + case TLB_WORD0_SIZE_1KB: + tlb_size = 1 << 10; + break; + case TLB_WORD0_SIZE_4KB: + tlb_size = 4 << 10; + break; + case TLB_WORD0_SIZE_16KB: + tlb_size = 16 << 10; + break; + case TLB_WORD0_SIZE_64KB: + tlb_size = 64 << 10; + break; + case TLB_WORD0_SIZE_256KB: + tlb_size = 256 << 10; + break; + case TLB_WORD0_SIZE_1MB: + tlb_size = 1 << 20; + break; + case TLB_WORD0_SIZE_16MB: + tlb_size = 16 << 20; + break; + case TLB_WORD0_SIZE_256MB: + tlb_size = 256 << 20; + break; + } + + /* + * Now check the end-address if it's in the range + */ + if ((tlb_vaddr + tlb_size - 1) <= (vaddr + size - 1)) + /* + * Found a TLB in the range. + * Disable it by writing 0 to tlb0 word. + */ + mttlb1(i, 0); + } + } + + /* Execute an ISYNC instruction so that the new TLB entry takes effect */ + asm("isync"); +} + static int add_tlb_entry(unsigned long phys_addr, unsigned long virt_addr, unsigned long tlb_word0_size_value, diff --git a/include/asm-ppc/mmu.h b/include/asm-ppc/mmu.h index 48fd982..b3cfa9b 100644 --- a/include/asm-ppc/mmu.h +++ b/include/asm-ppc/mmu.h @@ -645,6 +645,9 @@ void mttlb3(unsigned long index, unsigned long value); unsigned long mftlb1(unsigned long index); unsigned long mftlb2(unsigned long index); unsigned long mftlb3(unsigned long index); + +void program_tlb(u32 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value); +void remove_tlb(u32 vaddr, u32 size); #endif /* __ASSEMBLY__ */ #endif /* CONFIG_440 */ diff --git a/include/configs/luan.h b/include/configs/luan.h index cbb59c5..e192d06 100644 --- a/include/configs/luan.h +++ b/include/configs/luan.h @@ -136,7 +136,6 @@ #define CONFIG_SPD_EEPROM 1 /* Use SPD EEPROM for setup */ #define SPD_EEPROM_ADDRESS {0x53, 0x52} /* SPD i2c spd addresses*/ #define CONFIG_DDR_ECC 1 /* with ECC support */ -#define CFG_44x_DDR2_CKTR_180 1 /* use 180 deg advance */ /*----------------------------------------------------------------------- * I2C diff --git a/include/configs/lwmon5.h b/include/configs/lwmon5.h index 1d87c73..c4b7c4e 100644 --- a/include/configs/lwmon5.h +++ b/include/configs/lwmon5.h @@ -162,6 +162,7 @@ #define CONFIG_EXTRA_ENV_SETTINGS \ "hostname=lwmon5\0" \ "netdev=eth0\0" \ + "unlock=yes\0" \ "nfsargs=setenv bootargs root=/dev/nfs rw " \ "nfsroot=${serverip}:${rootpath}\0" \ "ramargs=setenv bootargs root=/dev/ram rw\0" \ @@ -183,6 +184,8 @@ "update=protect off FFF80000 FFFFFFFF;era FFF80000 FFFFFFFF;" \ "cp.b 200000 FFF80000 80000\0" \ "upd=run load;run update\0" \ + "lwe_env=tftp 200000 /tftpboot.dev/lwmon5/env_uboot.bin;" \ + "autoscr 200000\0" \ "" #define CONFIG_BOOTCOMMAND "run flash_self" |