diff options
Diffstat (limited to 'board/socrates/socrates.c')
| -rw-r--r-- | board/socrates/socrates.c | 58 |
1 files changed, 43 insertions, 15 deletions
diff --git a/board/socrates/socrates.c b/board/socrates/socrates.c index cdab1a2231..0991177726 100644 --- a/board/socrates/socrates.c +++ b/board/socrates/socrates.c @@ -36,12 +36,15 @@ #include <libfdt.h> #include <fdt_support.h> #include <asm/io.h> - +#include <i2c.h> +#include <mb862xx.h> +#include <video_fb.h> #include "upm_table.h" DECLARE_GLOBAL_DATA_PTR; extern flash_info_t flash_info[]; /* FLASH chips info */ +extern GraphicDevice mb862xx; void local_bus_init (void); ulong flash_get_size (ulong base, int banknum); @@ -174,11 +177,9 @@ void local_bus_init (void) out_be32 (&lbc->mamr, 0x44440); /* Use a customer-supplied value */ upmconfig (UPMA, (uint *)UPMTableA, sizeof(UPMTableA)/sizeof(int)); - if (getenv("lime")) { - /* Init UPMB for Lime controller access */ - out_be32 (&lbc->mbmr, 0x444440); /* Use a customer-supplied value */ - upmconfig (UPMB, (uint *)UPMTableB, sizeof(UPMTableB)/sizeof(int)); - } + /* Init UPMB for Lime controller access */ + out_be32 (&lbc->mbmr, 0x444440); /* Use a customer-supplied value */ + upmconfig (UPMB, (uint *)UPMTableB, sizeof(UPMTableB)/sizeof(int)); } #if defined(CONFIG_PCI) @@ -245,7 +246,7 @@ ft_board_setup(void *blob, bd_t *bd) val[i++] = gd->bd->bi_flashstart; val[i++] = gd->bd->bi_flashsize; - if (getenv("lime")) { + if (mb862xx.frameAdrs == CFG_LIME_BASE) { /* Fixup LIME mapping */ val[i++] = 2; /* chip select number */ val[i++] = 0; /* always 0 */ @@ -267,10 +268,6 @@ ft_board_setup(void *blob, bd_t *bd) } #endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */ -#include <i2c.h> -#include <mb862xx.h> -#include <video_fb.h> - #define CFG_LIME_SRST ((CFG_LIME_BASE) + 0x01FC002C) #define CFG_LIME_CCF ((CFG_LIME_BASE) + 0x01FC0038) #define CFG_LIME_MMR ((CFG_LIME_BASE) + 0x01FCFFFC) @@ -285,8 +282,6 @@ ft_board_setup(void *blob, bd_t *bd) #define DEFAULT_BRIGHTNESS 25 #define BACKLIGHT_ENABLE (1 << 31) -extern GraphicDevice mb862xx; - static const gdc_regs init_regs [] = { {0x0100, 0x00010f00}, @@ -313,11 +308,44 @@ const gdc_regs *board_get_regs (void) return init_regs; } +#define CFG_LIME_CID ((CFG_LIME_BASE) + 0x01FC00F0) +#define CFG_LIME_REV ((CFG_LIME_BASE) + 0x01FF8084) +int lime_probe(void) +{ + volatile ccsr_lbc_t *memctl = (void *)(CFG_MPC85xx_LBC_ADDR); + uint cfg_br2; + uint cfg_or2; + uint reg; + + cfg_br2 = memctl->br2; + cfg_or2 = memctl->or2; + + /* Configure GPCM for CS2 */ + memctl->br2 = 0; + memctl->or2 = 0xfc000410; + memctl->br2 = (CFG_LIME_BASE) | 0x00001901; + + /* Try to access GDC ID/Revision registers */ + reg = in_be32((void *)CFG_LIME_CID); + reg = in_be32((void *)CFG_LIME_CID); + if (reg == 0x303) { + reg = in_be32((void *)CFG_LIME_REV); + reg = in_be32((void *)CFG_LIME_REV); + reg = ((reg & ~0xff) == 0x20050100) ? 1 : 0; + } else + reg = 0; + + /* Restore previous CS2 configuration */ + memctl->br2 = 0; + memctl->or2 = cfg_or2; + memctl->br2 = cfg_br2; + return reg; +} + /* Returns Lime base address */ unsigned int board_video_init (void) { - - if (!getenv("lime")) + if (!lime_probe()) return 0; /* |