diff options
Diffstat (limited to 'board/netstal/hcu4/hcu4.c')
| -rw-r--r-- | board/netstal/hcu4/hcu4.c | 80 |
1 files changed, 45 insertions, 35 deletions
diff --git a/board/netstal/hcu4/hcu4.c b/board/netstal/hcu4/hcu4.c index deb7d2d..252aaa7 100644 --- a/board/netstal/hcu4/hcu4.c +++ b/board/netstal/hcu4/hcu4.c @@ -27,10 +27,30 @@ DECLARE_GLOBAL_DATA_PTR; +#define HCU_MACH_VERSIONS_REGISTER (0x7C000000 + 0xF00000) + +#define mtsdram(reg, data) { mtdcr(memcfga,reg);mtdcr(memcfgd,data); } +#define mfsdram(value, reg) { mtdcr(memcfga,reg); value = mfdcr(memcfgd); } + +#define SDRAM_LEN 32*1024*1024 /* 32 MB -RAM */ + +#define DO_UGLY_SDRAM_WORKAROUND + +enum { + /* HW_GENERATION_HCU wird nicht mehr unterstuetzt */ + HW_GENERATION_HCU2 = 0x10, + HW_GENERATION_HCU3 = 0x10, + HW_GENERATION_HCU4 = 0x20, + HW_GENERATION_MCU = 0x08, + HW_GENERATION_MCU20 = 0x0a, + HW_GENERATION_MCU25 = 0x09, +}; + void sysLedSet(u32 value); -long int spd_sdram(int(read_spd)(uint addr)) +long int spd_sdram(int(read_spd)(uint addr)); + #ifdef CONFIG_SPD_EEPROM - #define DEBUG +#define DEBUG #endif #if defined(DEBUG) @@ -86,26 +106,15 @@ int board_pre_init (void) { return board_early_init_f (); } - #endif -enum { - /* HW_GENERATION_HCU wird nicht mehr unterstuetzt */ - HW_GENERATION_HCU2 = 0x10, - HW_GENERATION_HCU3 = 0x10, - HW_GENERATION_HCU4 = 0x20, - HW_GENERATION_MCU = 0x08, - HW_GENERATION_MCU20 = 0x0a, - HW_GENERATION_MCU25 = 0x09, -}; - int checkboard (void) { -#define HCU_MACH_VERSIONS_REGISTER ( 0x7C000000 + 0xF00000 ) - unsigned j; - uint16_t *boardVersReg = (uint16_t *) HCU_MACH_VERSIONS_REGISTER; - uint16_t generation = *boardVersReg & 0xf0; - uint16_t index = *boardVersReg & 0x0f; + unsigned int j; + u16 *boardVersReg = (u16 *) HCU_MACH_VERSIONS_REGISTER; + u16 generation = *boardVersReg & 0xf0; + u16 index = *boardVersReg & 0x0f; + /* Force /RTS to active. The board it not wired quite correctly to use cts/rtc flow control, so just force the /RST active and forget about it. */ @@ -117,24 +126,26 @@ int checkboard (void) printf ("HCU4: index %d\n\n", index); /* GPIO here noch nicht richtig initialisert !!! */ sysLedSet(0); - for (j=0; j < 7;j++) { + for (j = 0; j < 7; j++) { sysLedSet(1 << j); - udelay(50*1000); + udelay(50 * 1000); } + return 0; } u32 sysLedGet(void) { - return( ~( (*(u32 *)GPIO0_OR)) >> 23) & 0xff; + return (~((*(u32 *)GPIO0_OR)) >> 23) & 0xff; } void sysLedSet(u32 value /* value to place in LEDs */) { u32 tmp = ~value; u32 *ledReg; - tmp = (tmp << 23) | 0x7FFFFF; - ledReg = (u32 *)GPIO0_OR; + + tmp = (tmp << 23) | 0x7FFFFF; + ledReg = (u32 *)GPIO0_OR; *ledReg = tmp; } @@ -147,13 +158,11 @@ void sdram_init(void) return; } -#define mtsdram(reg, data) { mtdcr(memcfga,reg);mtdcr(memcfgd,data); } -#define mfsdram(value, reg) { mtdcr(memcfga,reg); value = mfdcr(memcfgd); } - #if defined(DEBUG) void show_sdram_registers(void) { u32 value; + printf ("SDRAM Controller Registers --\n"); mfsdram(value, mem_mcopt1); printf (" SDRAM0_CFG : 0x%08x\n", value); @@ -170,8 +179,6 @@ void show_sdram_registers(void) } #endif -#define SDRAM_LEN 32*1024*1024 /* 32 MB -RAM */ - /* * this is even after checkboard. It returns the size of the SDRAM * that we have installed. This function is called by board_init_f @@ -244,9 +251,10 @@ long int fixed_hcu4_sdram (int board_type) static u32 getSerialNr(void) { u32 *serial = (u32 *)CFG_FLASH_BASE; - if (*serial == 0xffffffff) { + + if (*serial == 0xffffffff) return get_ticks(); - } + return *serial; } @@ -260,12 +268,14 @@ int misc_init_r(void) char *s = getenv("ethaddr"); char *e; int i; - u32 serial = getSerialNr(); + u32 serial = getSerialNr(); + for (i = 0; i < 6; ++i) { gd->bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0; if (s) s = (*e) ? e + 1 : e; } + if (gd->bd->bi_enetaddr[3] == 0 && gd->bd->bi_enetaddr[4] == 0 && gd->bd->bi_enetaddr[5] == 0) { @@ -288,13 +298,14 @@ int misc_init_r(void) return 0; } -#define DO_UGLY_SDRAM_WORKAROUND #ifdef DO_UGLY_SDRAM_WORKAROUND - #include "i2c.h" +#include "i2c.h" + void set_spd_default_value(unsigned int spd_addr,uchar def_val) { uchar value; int res = i2c_read(SPD_EEPROM_ADDRESS, spd_addr, 1, &value, 1) ; + if (res == 0 && value == 0xff) { res = i2c_write(SPD_EEPROM_ADDRESS, spd_addr, 1, &def_val, 1) ; @@ -387,7 +398,6 @@ long int initdram(int board_type) bcu4_testdram(dram_size); printf("%s %d MB of SDRAM\n", __FUNCTION__, dram_size/(1024*1024)); #endif + return dram_size; } - - |