Use the common net eth functions to setup the env/global data with the MAC address, and properly handle the case where CONFIG_SYS_NO_FLASH is defined.
Signed-off-by: Mike Frysinger vapier@gentoo.org --- board/bf537-stamp/bf537-stamp.c | 79 +++++++++++++++++++++++++++----------- include/asm-blackfin/net.h | 28 ++++++++++++++ 2 files changed, 84 insertions(+), 23 deletions(-) create mode 100644 include/asm-blackfin/net.h
diff --git a/board/bf537-stamp/bf537-stamp.c b/board/bf537-stamp/bf537-stamp.c index 63992f6..49d3f46 100644 --- a/board/bf537-stamp/bf537-stamp.c +++ b/board/bf537-stamp/bf537-stamp.c @@ -1,7 +1,7 @@ /* - * U-boot - BF537.c + * U-boot - main board file * - * Copyright (c) 2005-2007 Analog Devices Inc. + * Copyright (c) 2005-2008 Analog Devices Inc. * * (C) Copyright 2000-2004 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. @@ -29,7 +29,7 @@ #include <config.h> #include <command.h> #include <asm/blackfin.h> -#include <asm/io.h> +#include <asm/net.h> #include <net.h> #include <asm/mach-common/bits/bootrom.h> #include <netdev.h> @@ -105,22 +105,63 @@ phys_size_t initdram(int board_type) return gd->bd->bi_memsize; }
+void board_reset(void) +{ + /* workaround for weak pull ups on ssel */ + if (CONFIG_BFIN_BOOT_MODE == BFIN_BOOT_SPI_MASTER) { + bfin_write_PORTF_FER(bfin_read_PORTF_FER() & ~PF10); + bfin_write_PORTFIO_SET(PF10); + udelay(1); + } +} + +#ifdef CONFIG_BFIN_MAC +static void board_init_enetaddr(uchar *mac_addr) +{ +#ifdef CONFIG_SYS_NO_FLASH +# define USE_MAC_IN_FLASH 0 +#else +# define USE_MAC_IN_FLASH 1 +#endif + bool valid_mac = false; + + if (USE_MAC_IN_FLASH) { + /* we cram the MAC in the last flash sector */ + uchar *board_mac_addr = (uchar *)0x203F0000; + if (is_valid_ether_addr(board_mac_addr)) { + memcpy(mac_addr, board_mac_addr, 6); + valid_mac = true; + } + } + + if (!valid_mac) { + puts("Warning: Generating 'random' MAC address\n"); + bfin_gen_rand_mac(mac_addr); + } + + eth_setenv_enetaddr("ethaddr", mac_addr); +} + +int board_eth_init(bd_t *bis) +{ + return bfin_EMAC_initialize(bis); +} +#endif + #if defined(CONFIG_MISC_INIT_R) /* miscellaneous platform dependent initialisations */ int misc_init_r(void) { -#if defined(CONFIG_CMD_NET) - char nid[32]; - unsigned char *pMACaddr = (unsigned char *)0x203F0000; - - /* The 0xFF check here is to make sure we don't use the address - * in flash if it's simply been erased (aka all 0xFF values) */ - if (getenv("ethaddr") == NULL && is_valid_ether_addr(pMACaddr)) { - sprintf(nid, "%02x:%02x:%02x:%02x:%02x:%02x", - pMACaddr[0], pMACaddr[1], - pMACaddr[2], pMACaddr[3], pMACaddr[4], pMACaddr[5]); - setenv("ethaddr", nid); - } +#ifndef CONFIG_SYS_NO_FLASH + /* we use the last sector for the MAC address / POST LDR */ + extern flash_info_t flash_info[]; + flash_protect(FLAG_PROTECT_SET, 0x203F0000, 0x203FFFFF, &flash_info[0]); +#endif + +#ifdef CONFIG_BFIN_MAC + uchar *enetaddr = bis->bi_enetaddr; + if (!eth_getenv_enetaddr("ethaddr", enetaddr)) + board_init_enetaddr(enetaddr); #endif
#if defined(CONFIG_BFIN_IDE) @@ -143,14 +184,6 @@ int misc_init_r(void) } #endif /* CONFIG_MISC_INIT_R */
-#if defined(CONFIG_BFIN_MAC) - -int board_eth_init(bd_t *bis) -{ - return bfin_EMAC_initialize(bis); -} -#endif - #ifdef CONFIG_POST /* Using sw10-PF5 as the hotkey */ int post_hotkeys_pressed(void) diff --git a/include/asm-blackfin/net.h b/include/asm-blackfin/net.h new file mode 100644 index 0000000..97cb466 --- /dev/null +++ b/include/asm-blackfin/net.h @@ -0,0 +1,28 @@ +/* + * net.h - misc Blackfin network helpers + * + * Copyright (c) 2008-2009 Analog Devices Inc. + * + * Licensed under the GPL-2 or later. + */ + +#ifndef __ASM_BFIN_RAND_MAC__ +#define __ASM_BFIN_RAND_MAC__ + +/* If the board does not have a real MAC assigned to it, then generate a + * locally administrated pseudo-random one based on CYCLES and compile date. + */ +static inline void bfin_gen_rand_mac(uchar *mac_addr) +{ + /* make something up */ + const char s[] = __DATE__; + size_t i; + u32 cycles; + for (i = 0; i < 6; ++i) { + asm("%0 = CYCLES;" : "=r" (cycles)); + mac_addr[i] = cycles ^ s[i]; + } + mac_addr[0] = (mac_addr[0] | 0x02) & ~0x01; /* make it local unicast */ +} + +#endif