This patch includes the following changes for the lwmon5 board support: - Enable cache in SDRAM - Use common EHCI driver instead of the PPC4xx specific OHCI driver This can be done since only high-speed devices are connected. - Remove cached TLB entry again after ECC setup - Use correct define for cache enabling (CONFIG_4xx_DCACHE instead of CONFIG_SYS_ENABLE_SDRAM_CACHE) - Enable FIT image support
Signed-off-by: Stefan Roese <[email protected]> --- board/lwmon5/sdram.c | 22 ++++++++++++++++++---- include/configs/lwmon5.h | 22 ++++++++++++++-------- 2 files changed, 32 insertions(+), 12 deletions(-) diff --git a/board/lwmon5/sdram.c b/board/lwmon5/sdram.c index f90efeb..b64b35a 100644 --- a/board/lwmon5/sdram.c +++ b/board/lwmon5/sdram.c @@ -45,10 +45,10 @@ * memory. * * If at some time this restriction doesn't apply anymore, just define - * CONFIG_SYS_ENABLE_SDRAM_CACHE in the board config file and this code should setup + * CONFIG_4xx_DCACHE in the board config file and this code should setup * everything correctly. */ -#ifdef CONFIG_SYS_ENABLE_SDRAM_CACHE +#ifdef CONFIG_4xx_DCACHE #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 */ @@ -220,18 +220,32 @@ phys_size_t initdram (int board_type) program_tlb(0, CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_MBYTES_SDRAM << 20, MY_TLB_WORD2_I_ENABLE); +#if defined(CONFIG_DDR_ECC) +#if defined(CONFIG_4xx_DCACHE) + /* + * If ECC is enabled, initialize the parity bits. + */ + program_ecc(0, CONFIG_SYS_MBYTES_SDRAM << 20, 0); +#else /* CONFIG_4xx_DCACHE */ /* * Setup 2nd TLB with same physical address but different virtual address * with cache enabled. This is done for fast ECC generation. */ program_tlb(0, CONFIG_SYS_DDR_CACHED_ADDR, CONFIG_SYS_MBYTES_SDRAM << 20, 0); -#ifdef CONFIG_DDR_ECC /* * If ECC is enabled, initialize the parity bits. */ program_ecc(CONFIG_SYS_DDR_CACHED_ADDR, CONFIG_SYS_MBYTES_SDRAM << 20, 0); -#endif + + /* + * Now after initialization (auto-calibration and ECC generation) + * remove the TLB entries with caches enabled and program again with + * desired cache functionality + */ + remove_tlb(CONFIG_SYS_DDR_CACHED_ADDR, CONFIG_SYS_MBYTES_SDRAM << 20); +#endif /* CONFIG_4xx_DCACHE */ +#endif /* CONFIG_DDR_ECC */ /* * Clear possible errors resulting from data-eye-search. diff --git a/include/configs/lwmon5.h b/include/configs/lwmon5.h index 4c9744c..aedf495 100644 --- a/include/configs/lwmon5.h +++ b/include/configs/lwmon5.h @@ -43,6 +43,8 @@ #define CONFIG_SYS_CLK_FREQ 33300000 /* external freq to pll */ +#define CONFIG_4xx_DCACHE /* enable cache in SDRAM */ + #define CONFIG_BOARD_EARLY_INIT_F /* Call board_early_init_f */ #define CONFIG_BOARD_EARLY_INIT_R /* Call board_early_init_r */ #define CONFIG_BOARD_POSTCLK_INIT /* Call board_postclk_init */ @@ -321,6 +323,8 @@ /* Update size in "reg" property of NOR FLASH device tree nodes */ #define CONFIG_FDT_FIXUP_NOR_FLASH_SIZE +#define CONFIG_FIT /* enable FIT image support */ + #define CONFIG_POST_KEY_MAGIC "3C+3E" /* press F3 + F5 keys to force POST */ #define CONFIG_PREBOOT "setenv bootdelay 15" @@ -393,16 +397,18 @@ #define CONFIG_VIDEO_SW_CURSOR #define CONFIG_SPLASH_SCREEN -/* USB */ -#ifdef CONFIG_440EPX -#define CONFIG_USB_OHCI +/* + * USB/EHCI + */ +#define CONFIG_USB_EHCI /* Enable EHCI USB support */ +#define CONFIG_USB_EHCI_PPC4XX /* on PPC4xx platform */ +#define CONFIG_SYS_PPC4XX_USB_ADDR 0xe0000300 +#define CONFIG_EHCI_DCACHE /* with dcache handling support */ +#define CONFIG_EHCI_MMIO_BIG_ENDIAN +#define CONFIG_EHCI_DESC_BIG_ENDIAN +#define CONFIG_EHCI_HCD_INIT_AFTER_RESET /* re-init HCD after CMD_RESET */ #define CONFIG_USB_STORAGE -/* Comment this out to enable USB 1.1 device */ -#define USB_2_0_DEVICE - -#endif /* CONFIG_440EPX */ - /* Partitions */ #define CONFIG_MAC_PARTITION #define CONFIG_DOS_PARTITION -- 1.7.3.2 _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
