diff options
author | Wolfgang Denk <wd@denx.de> | 2012-07-08 19:26:33 +0200 |
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committer | Wolfgang Denk <wd@denx.de> | 2012-07-08 19:26:33 +0200 |
commit | 50cd93b25033764dcda9bb47aa68be778f94d36e (patch) | |
tree | b8606a377b805952d533300dfa1e98e42951678e /net | |
parent | 8246ff864de38935ff34108856a37a2caf6cbefc (diff) | |
parent | d702b0811df53a1fc2d8049e35431e4591d093c6 (diff) |
Merge branch 'master' of git://git.denx.de/u-boot-arm
* 'master' of git://git.denx.de/u-boot-arm: (212 commits)
ARM: cache: Move the cp15 CR register read before flushing the cache.
ARM: introduce arch_early_init_r()
PXA: Enable CONFIG_PREBOOT on zipitz2
ARM: mx28: Remove CONFIG_ARCH_CPU_INIT
No need to define CONFIG_ARCH_CPU_INIT.
add new board vl_ma2sc
MTD: SPEAr SMI: Add write support for length < 4 bytes
i2c: designware_i2c.c: Add support for the "i2c probe" command
rtc/m41t62: Add support for M41T82 with HT (Halt Update)
SPL: ARM: spear: Add SPL support for SPEAr600 platform
Makefile: Add u-boot.spr build target (SPEAr)
SPL: ARM: spear: Remove some objects from SPL build
SPL: lib/Makefile: Add crc32.c to SPL build
SPL: common/Makefile: Add image.c to SPL build
arm: Don't use printf() in SPL builds
GPIO: Add SPEAr GPIO driver
net: Multiple updates/enhancements to designware.c
cleanup/SPEAr: Define configuration flags more elegantly
cleanup/SPEAr: Remove unnecessary parenthesis
SPEAr: Correct SoC ID offset in misc configuration space
SPEAr: explicitly select clk src for UART
SPEAr: Remove CONFIG_MTD_NAND_VERIFY_WRITE to speed up NAND access
SPEAr: Enable ONFI nand flash detection for spear3xx and 6xx and evb
SPEAr: Enable CONFIG_SYS_FLASH_EMPTY_INFO macro
SPEAr: Correct the definition of CONFIG_SYS_MONITOR_BASE
SPEAr: Enable CONFIG_SYS_FLASH_PROTECTION
SPEAr: Enable dcache for fast file transfer
SPEAr: Enable autoneg for ethernet
SPEAr: Enable udc and usb-console support only for usbtty configuration
SPEAr: Enable usb device high speed support
SPEAr: Initialize SNOR in early_board_init_f
SPEAr: Change the default environment variables
SPEAr: Remove unused flag (CONFIG_SYS_HZ_CLOCK)
SPEAr: Add configuration options for spear3xx and spear6xx boards
SPEAr: Add basic arch related support for SPEAr SoCs
SPEAr: Add interface information in initialization
SPEAr: Add macb driver support for spear310 and spear320
SPEAr: Configure network support for spear SoCs
SPEAr: Place ethaddr write and read within CONFIG_CMD_NET
SPEAr: Eliminate dependency on Xloader table
SPEAr: Fix ARM relocation support
st_smi: Fixed page size for Winbond W25Q128FV flash
st_smi: Change timeout loop implementation
st_smi: Fix bug in flash_print_info()
st_smi: Change the flash probing method
st_smi: Removed no needed dependency on ST_M25Pxx_ID
st_smi: Fix smi read status
st_smi: Move status register read before modifying ctrl register
st_smi: Read status until timeout happens
st_smi: Enhance the error handling
st_smi: Change SMI timeout values
st_smi: Return error in case TFF is not set
st_smi: Add support for SPEAr SMI driver
mtd/NAND: Remove obsolete SPEAr specific NAND drivers
SPEAr: Configure FSMC driver for NAND interface
mtd/NAND: Add FSMC driver support
arm/km: remove calls to kw_gpio_* in board_early_init_f
arm/km: add implementation for read_dip_switch
arm/km: support the 2 PCIe fpga resets
arm/km: skip FPGA config when already configured
arm/km: redefine piggy 4 reg names to avoid conflicts
arm/km: cleanup km_kirkwood boards
arm/km: enable BOCO2 FPGA download support
arm/km: remove portl2.h and use km_kirkwood instead
arm/km: convert mgcoge3un target to km_kirkwood
arm/km: add kmcoge5un board support
arm/km: add kmnusa board support
arm: bugfix: save_boot_params_default accesses uninitalized stack when -O0
cm-t35: fix incorrect NAND_ECC layout selection
ARM: OMAP4/5: Do not configure non essential pads, clocks, dplls.
ARM: OMAP4/5: Move USB pads to essential list.
ARM: OMAP4/5: Move USB clocks to essential group.
ARM: OMAP4/5: Move gpmc clocks to essential group.
ARM: OMAP4+: Move external phy initialisations to arch specific place.
omap4: Use a smaller M,N couple for IVA DPLL
da850/omap-l138: Enable auto negotiation in RMII mode
omap: am33xx: accomodate input clocks other than 24 Mhz
omap: emif: fix bug in manufacturer code test
omap: emif: deal with rams that return duplicate mr data on all byte lanes
OMAP4+: Force DDR in self-refresh after warm reset
OMAP4+: Handle sdram init after warm reset
ARM: OMAP3+: Detect reset type
arm: bugfix: Move vector table before jumping relocated code
Kirkwood: Add support for Ka-Ro TK71
arm/km: use spi claim bus to switch between SPI and NAND
arm/kirkwood: protect the ENV_SPI #defines
ARM: don't probe PHY address for LaCie boards
lacie_kw: fix CONFIG_SYS_KWD_CONFIG for inetspace_v2
lacie_kw: fix SDRAM banks number for net2big_v2
Kirkwood: add lschlv2 and lsxhl board support
net: add helper to generate random mac address
net: use common rand()/srand() functions
lib: add rand() function
kwboot: boot kirkwood SoCs over a serial link
kw_spi: add weak functions board_spi_claim/release_bus
kw_spi: support spi_claim/release_bus functions
kw_spi: backup and reset the MPP of the chosen CS pin
kirkwood: fix calls to kirkwood_mpp_conf
kirkwood: add save functionality kirkwood_mpp_conf function
km_arm: use filesize for erase in update command
arm/km: enable mii cmd
arm/km: remove CONFIG_RESET_PHY_R
arm/km: change maintainer for mgcoge3un
arm/km: fix wrong comment in SDRAM config for mgcoge3un
arm/km: use ARRAY_SIZE macro
arm/km: rename CONFIG option CONFIG_KM_DEF_ENV_UPDATE
arm/km: add piggy mac adress offset for mgcoge3un
arm/km: add board type to boards.cfg
AT91SAM9*: Change kernel address in dataflash to match u-boot's size
ATMEL/PIO: Enable new feature of PIO on Atmel device
ehci-atmel: fix compiler warning
AT91: at91sam9m10g45ek : Enable EHCI instead OHCI
Atmel : usb : add EHCI driver for Atmel SoC
Fix: AT91SAM9263 nor flash usage
Fix: broken boot message at serial line on AT91SAM9263-EK board
i.MX6 USDHC: Use the ESDHC clock
mx28evk: Fix boot by adjusting HW_DRAM_CTL29 register
i.MX28: Add function to adjust memory parameters
mx28evk: Fix PSWITCH key position
mx53smd: Remove CONFIG_SYS_I2C_SLAVE definition
mx53loco: Remove CONFIG_SYS_I2C_SLAVE definition
mx53evk: Remove CONFIG_SYS_I2C_SLAVE definition
mx53ard: Remove CONFIG_SYS_I2C_SLAVE definition
mx35pdk: Remove CONFIG_SYS_I2C_SLAVE definition
imx31_phycore: Remove CONFIG_SYS_I2C_SLAVE definition
mx53ard: Remove unused CONFIG_MII_GASKET
mx6: Avoid writing to read-only bits in imximage.cfg
m28evk: use same notation to alloc the 128kB stack
...
Signed-off-by: Wolfgang Denk <wd@denx.de>
Diffstat (limited to 'net')
-rw-r--r-- | net/Makefile | 2 | ||||
-rw-r--r-- | net/eth.c | 22 | ||||
-rw-r--r-- | net/link_local.c | 7 | ||||
-rw-r--r-- | net/net_rand.c | 68 | ||||
-rw-r--r-- | net/net_rand.h | 31 |
5 files changed, 50 insertions, 80 deletions
diff --git a/net/Makefile b/net/Makefile index 526468718a..e7764ce932 100644 --- a/net/Makefile +++ b/net/Makefile @@ -34,8 +34,6 @@ COBJS-$(CONFIG_CMD_DNS) += dns.o COBJS-$(CONFIG_CMD_NET) += eth.o COBJS-$(CONFIG_CMD_LINK_LOCAL) += link_local.o COBJS-$(CONFIG_CMD_NET) += net.o -COBJS-$(CONFIG_BOOTP_RANDOM_DELAY) += net_rand.o -COBJS-$(CONFIG_CMD_LINK_LOCAL) += net_rand.o COBJS-$(CONFIG_CMD_NFS) += nfs.o COBJS-$(CONFIG_CMD_PING) += ping.o COBJS-$(CONFIG_CMD_RARP) += rarp.o @@ -70,6 +70,28 @@ static int eth_mac_skip(int index) return ((skip_state = getenv(enetvar)) != NULL); } +#ifdef CONFIG_RANDOM_MACADDR +void eth_random_enetaddr(uchar *enetaddr) +{ + uint32_t rval; + + srand(get_timer(0)); + + rval = rand(); + enetaddr[0] = rval & 0xff; + enetaddr[1] = (rval >> 8) & 0xff; + enetaddr[2] = (rval >> 16) & 0xff; + + rval = rand(); + enetaddr[3] = rval & 0xff; + enetaddr[4] = (rval >> 8) & 0xff; + enetaddr[5] = (rval >> 16) & 0xff; + + /* make sure it's local and unicast */ + enetaddr[0] = (enetaddr[0] | 0x02) & ~0x01; +} +#endif + /* * CPU and board-specific Ethernet initializations. Aliased function * signals caller to move on diff --git a/net/link_local.c b/net/link_local.c index 336286395b..582d0115b7 100644 --- a/net/link_local.c +++ b/net/link_local.c @@ -56,6 +56,7 @@ static unsigned conflicts; static unsigned nprobes; static unsigned nclaims; static int ready; +static unsigned int seed; static void link_local_timeout(void); @@ -68,7 +69,7 @@ static IPaddr_t pick(void) unsigned tmp; do { - tmp = rand() & IN_CLASSB_HOST; + tmp = rand_r(&seed) & IN_CLASSB_HOST; } while (tmp > (IN_CLASSB_HOST - 0x0200)); return (IPaddr_t) htonl((LINKLOCAL_ADDR + 0x0100) + tmp); } @@ -78,7 +79,7 @@ static IPaddr_t pick(void) */ static inline unsigned random_delay_ms(unsigned secs) { - return rand() % (secs * 1000); + return rand_r(&seed) % (secs * 1000); } static void configure_wait(void) @@ -109,7 +110,7 @@ void link_local_start(void) } NetOurSubnetMask = IN_CLASSB_NET; - srand_mac(); + seed = seed_mac(); if (ip == 0) ip = pick(); diff --git a/net/net_rand.c b/net/net_rand.c deleted file mode 100644 index 5387abadcf..0000000000 --- a/net/net_rand.c +++ /dev/null @@ -1,68 +0,0 @@ -/* - * Based on LiMon - BOOTP. - * - * Copyright 1994, 1995, 2000 Neil Russell. - * (See License) - * Copyright 2000 Roland Borde - * Copyright 2000 Paolo Scaffardi - * Copyright 2000-2004 Wolfgang Denk, wd@denx.de - */ - -#include <common.h> -#include <net.h> -#include "net_rand.h" - -static ulong seed1, seed2; - -void srand_mac(void) -{ - ulong tst1, tst2, m_mask; - ulong m_value = 0; - int reg; - unsigned char bi_enetaddr[6]; - - /* get our mac */ - eth_getenv_enetaddr("ethaddr", bi_enetaddr); - - debug("BootpRequest => Our Mac: "); - for (reg = 0; reg < 6; reg++) - debug("%x%c", bi_enetaddr[reg], reg == 5 ? '\n' : ':'); - - /* Mac-Manipulation 2 get seed1 */ - tst1 = 0; - tst2 = 0; - for (reg = 2; reg < 6; reg++) { - tst1 = tst1 << 8; - tst1 = tst1 | bi_enetaddr[reg]; - } - for (reg = 0; reg < 2; reg++) { - tst2 = tst2 | bi_enetaddr[reg]; - tst2 = tst2 << 8; - } - - seed1 = tst1^tst2; - - /* Mirror seed1*/ - m_mask = 0x1; - for (reg = 1; reg <= 32; reg++) { - m_value |= (m_mask & seed1); - seed1 = seed1 >> 1; - m_value = m_value << 1; - } - seed1 = m_value; - seed2 = 0xb78d0945; -} - -unsigned long rand(void) -{ - ulong sum; - - /* Random Number Generator */ - sum = seed1 + seed2; - if (sum < seed1 || sum < seed2) - sum++; - seed2 = seed1; - seed1 = sum; - - return sum; -} diff --git a/net/net_rand.h b/net/net_rand.h index c98db64280..ba9d0642cf 100644 --- a/net/net_rand.h +++ b/net/net_rand.h @@ -9,18 +9,35 @@ #ifndef __NET_RAND_H__ #define __NET_RAND_H__ -#define RAND_MAX 0xffffffff +#include <common.h> /* - * Seed the random number generator using the eth0 MAC address + * Return a seed for the PRNG derived from the eth0 MAC address. */ -void srand_mac(void); +static inline unsigned int seed_mac(void) +{ + unsigned char enetaddr[6]; + unsigned int seed; + + /* get our mac */ + eth_getenv_enetaddr("ethaddr", enetaddr); + + seed = enetaddr[5]; + seed ^= enetaddr[4] << 8; + seed ^= enetaddr[3] << 16; + seed ^= enetaddr[2] << 24; + seed ^= enetaddr[1]; + seed ^= enetaddr[0] << 8; + + return seed; +} /* - * Get a random number (after seeding with MAC address) - * - * @return random number + * Seed the random number generator using the eth0 MAC address. */ -unsigned long rand(void); +static inline void srand_mac(void) +{ + srand(seed_mac()); +} #endif /* __NET_RAND_H__ */ |