X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=board%2Fnetstal%2Fhcu5%2Fsdram.c;h=0546cd726d15b834469d37385eb737410fd3ca3f;hb=1d96cfe8f5eebfc6ea39d1a387f35ca4499e6b67;hp=40391958d21c51f7318a37c47226cd01e01ebc56;hpb=b706d63559aeec352bc72dd86d7d5423c15f6a60;p=oweals%2Fu-boot.git diff --git a/board/netstal/hcu5/sdram.c b/board/netstal/hcu5/sdram.c index 40391958d2..0546cd726d 100644 --- a/board/netstal/hcu5/sdram.c +++ b/board/netstal/hcu5/sdram.c @@ -34,47 +34,25 @@ #include #include #include +#include #include -void sysLedSet(u32 value); +void hcu_led_set(u32 value); void dcbz_area(u32 start_address, u32 num_bytes); -void dflush(void); - -#define DDR_DCR_BASE 0x10 -#define ddrcfga (DDR_DCR_BASE+0x0) /* DDR configuration address reg */ -#define ddrcfgd (DDR_DCR_BASE+0x1) /* DDR configuration data reg */ - -#define DDR0_01_INT_MASK_MASK 0x000000FF -#define DDR0_00_INT_ACK_ALL 0x7F000000 -#define DDR0_01_INT_MASK_ALL_ON 0x000000FF -#define DDR0_01_INT_MASK_ALL_OFF 0x00000000 - -#define DDR0_17_DLLLOCKREG_MASK 0x00010000 /* Read only */ -#define DDR0_17_DLLLOCKREG_UNLOCKED 0x00000000 -#define DDR0_17_DLLLOCKREG_LOCKED 0x00010000 - -#define DDR0_22 0x16 -/* ECC */ -#define DDR0_22_CTRL_RAW_MASK 0x03000000 -#define DDR0_22_CTRL_RAW_ECC_DISABLE 0x00000000 /* ECC not enabled */ -#define DDR0_22_CTRL_RAW_ECC_CHECK_ONLY 0x01000000 /* ECC no correction */ -#define DDR0_22_CTRL_RAW_NO_ECC_RAM 0x02000000 /* Not a ECC RAM*/ -#define DDR0_22_CTRL_RAW_ECC_ENABLE 0x03000000 /* ECC correcting on */ -#define DDR0_03_CASLAT_DECODE(n) ((((unsigned long)(n))>>16)&0x7) - -#ifdef CFG_ENABLE_SDRAM_CACHE -#define MY_TLB_WORD2_I_ENABLE 0 /* enable caching on DDR2 */ -#else -#define MY_TLB_WORD2_I_ENABLE TLB_WORD2_I_ENABLE /* disable caching on DDR2 */ -#endif -void program_tlb(u32 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value); +#define ECC_RAM 0x03267F0B +#define NO_ECC_RAM 0x00267F0B + +#define HCU_HW_SDRAM_CONFIG_MASK 0x7 + +#define MY_TLB_WORD2_I_ENABLE TLB_WORD2_I_ENABLE + /* disable caching on DDR2 */ -#ifdef CONFIG_ADD_RAM_INFO void board_add_ram_info(int use_default) { - PPC440_SYS_INFO board_cfg; + PPC4xx_SYS_INFO board_cfg; u32 val; + mfsdram(DDR0_22, val); val &= DDR0_22_CTRL_RAW_MASK; switch (val) { @@ -93,13 +71,12 @@ void board_add_ram_info(int use_default) } get_sys_info(&board_cfg); - printf(", %d MHz", (board_cfg.freqPLB * 2) / 1000000); + printf(", %lu MHz", (board_cfg.freqPLB * 2) / 1000000); mfsdram(DDR0_03, val); val = DDR0_03_CASLAT_DECODE(val); printf(", CL%d)", val); } -#endif /*-------------------------------------------------------------------- * wait_for_dlllock. @@ -112,11 +89,11 @@ static int wait_for_dlllock(void) /* -----------------------------------------------------------+ * Wait for the DCC master delay line to finish calibration * ----------------------------------------------------------*/ - mtdcr(ddrcfga, DDR0_17); + mtdcr(SDRAM0_CFGADDR, DDR0_17); val = DDR0_17_DLLLOCKREG_UNLOCKED; while (wait != 0xffff) { - val = mfdcr(ddrcfgd); + val = mfdcr(SDRAM0_CFGDATA); if ((val & DDR0_17_DLLLOCKREG_MASK) == DDR0_17_DLLLOCKREG_LOCKED) /* dlllockreg bit on */ @@ -138,14 +115,14 @@ static int wait_for_dlllock(void) void sdram_panic(const char *reason) { printf("\n%s: reason %s", __FUNCTION__, reason); - sysLedSet(0xff); + hcu_led_set(0xff); while (1) { } /* Never return */ } #ifdef CONFIG_DDR_ECC -static void blank_string(int size) +void blank_string(int size) { int i; @@ -159,44 +136,54 @@ static void blank_string(int size) /*---------------------------------------------------------------------------+ * program_ecc. *---------------------------------------------------------------------------*/ -static void program_ecc(unsigned long start_address, unsigned long num_bytes, - unsigned long tlb_word2_i_value) +static void program_ecc(unsigned long start_address, unsigned long num_bytes) { - unsigned long current_address= start_address; - int loopi = 0; u32 val; - char str[] = "ECC generation -"; - char slash[] = "\\|/-\\|/-"; +#if defined(CONFIG_PRAM) + u32 *magicPtr; + u32 magic; + + if ((mfspr(SPRN_DBCR0) & 0x80000000) == 0) { + /* only if no external debugger is alive! + * Check whether vxWorks is using EDR logging, if yes zero + * also PostMortem and user reserved memory + */ + magicPtr = (u32 *)(start_address + num_bytes - + (CONFIG_PRAM*1024) + sizeof(u32)); + magic = in_be32(magicPtr); + debug("%s: CONFIG_PRAM %d kB magic 0x%x 0x%p\n", + __FUNCTION__, CONFIG_PRAM, + magicPtr, magic); + if (magic == 0xbeefbabe) { + printf("%s: preserving at %p\n", __FUNCTION__, magicPtr); + num_bytes -= (CONFIG_PRAM*1024) - PM_RESERVED_MEM; + } + } +#endif sync(); - eieio(); puts(str); - if (tlb_word2_i_value == TLB_WORD2_I_ENABLE) { - /* ECC bit set method for non-cached memory */ - /* This takes various seconds */ - for(current_address = 0; current_address < num_bytes; - current_address += sizeof(u32)) { - *(u32 *)current_address = 0; - if ((current_address % (2 << 20)) == 0) { - putc('\b'); - putc(slash[loopi++ % 8]); - } - } - } else { - /* ECC bit set method for cached memory */ - /* Fast method, no noticeable delay */ - dcbz_area(start_address, num_bytes); - dflush(); - } + /* ECC bit set method for cached memory */ + /* Fast method, no noticeable delay */ + dcbz_area(start_address, num_bytes); + /* Write modified dcache lines back to memory */ + clean_dcache_range(start_address, start_address + num_bytes); blank_string(strlen(str)); /* Clear error status */ mfsdram(DDR0_00, val); mtsdram(DDR0_00, val | DDR0_00_INT_ACK_ALL); + /* + * Clear possible ECC errors + * If not done, then we could get an interrupt later on when + * exceptions are enabled. + */ + mtspr(SPRN_MCSR, mfspr(SPRN_MCSR)); + /* Set 'int_mask' parameter to functionnal value */ mfsdram(DDR0_01, val); mtsdram(DDR0_01, ((val &~ DDR0_01_INT_MASK_MASK) | @@ -204,19 +191,16 @@ static void program_ecc(unsigned long start_address, unsigned long num_bytes, return; } - #endif + /*********************************************************************** * * initdram -- 440EPx's DDR controller is a DENALI Core * ************************************************************************/ -long int initdram (int board_type) +phys_size_t initdram (int board_type) { -#define HCU_HW_SDRAM_CONFIG_MASK 0x7 -#define INVALID_HW_CONFIG "Invalid HW-Config" - u16 *hwVersReg = (u16 *) HCU_HW_VERSION_REGISTER; unsigned int dram_size = 0; mtsdram(DDR0_02, 0x00000000); @@ -227,25 +211,23 @@ long int initdram (int board_type) mtsdram(DDR0_03, 0x02030602); mtsdram(DDR0_04, 0x0A020200); mtsdram(DDR0_05, 0x02020307); - switch (*hwVersReg & HCU_HW_SDRAM_CONFIG_MASK) { - case 0: - dram_size = 128 * 1024 * 1024 ; - mtsdram(DDR0_06, 0x0102C80D); /* 128MB RAM */ - mtsdram(DDR0_11, 0x000FC800); /* 128MB RAM */ - mtsdram(DDR0_43, 0x030A0300); /* 128MB RAM */ - break; + switch (in_be16((u16 *)HCU_HW_VERSION_REGISTER) & HCU_HW_SDRAM_CONFIG_MASK) { case 1: dram_size = 256 * 1024 * 1024 ; mtsdram(DDR0_06, 0x0102C812); /* 256MB RAM */ mtsdram(DDR0_11, 0x0014C800); /* 256MB RAM */ mtsdram(DDR0_43, 0x030A0200); /* 256MB RAM */ break; + case 0: default: - sdram_panic(INVALID_HW_CONFIG); + dram_size = 128 * 1024 * 1024 ; + mtsdram(DDR0_06, 0x0102C80D); /* 128MB RAM */ + mtsdram(DDR0_11, 0x000FC800); /* 128MB RAM */ + mtsdram(DDR0_43, 0x030A0300); /* 128MB RAM */ break; } - dram_size -= 16 * 1024 * 1024; mtsdram(DDR0_07, 0x00090100); + /* * TCPD=200 cycles of clock input is required to lock the DLL. * CKE must be HIGH the entire time.mtsdram(DDR0_08, 0x02C80001); @@ -260,8 +242,6 @@ long int initdram (int board_type) mtsdram(DDR0_19, 0x1D1D1D1D); mtsdram(DDR0_20, 0x0B0B0B0B); mtsdram(DDR0_21, 0x0B0B0B0B); - #define ECC_RAM 0x03267F0B - #define NO_ECC_RAM 0x00267F0B #ifdef CONFIG_DDR_ECC mtsdram(DDR0_22, ECC_RAM); #else @@ -283,19 +263,20 @@ long int initdram (int board_type) /* * Program tlb entries for this size (dynamic) */ - program_tlb(0, 0, dram_size, MY_TLB_WORD2_I_ENABLE); + remove_tlb(CONFIG_SYS_SDRAM_BASE, 256 << 20); + program_tlb(0, 0, dram_size, TLB_WORD2_W_ENABLE | TLB_WORD2_I_ENABLE); /* * Setup 2nd TLB with same physical address but different virtual * address with cache enabled. This is done for fast ECC generation. */ - program_tlb(0, CFG_DDR_CACHED_ADDR, dram_size, 0); + program_tlb(0, CONFIG_SYS_DDR_CACHED_ADDR, dram_size, 0); #ifdef CONFIG_DDR_ECC /* * If ECC is enabled, initialize the parity bits. */ - program_ecc(CFG_DDR_CACHED_ADDR, dram_size, 0); + program_ecc(CONFIG_SYS_DDR_CACHED_ADDR, dram_size); #endif return (dram_size);