diff options
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/standalone/Makefile | 4 | ||||
| -rw-r--r-- | examples/standalone/smc911x_eeprom.c | 530 |
2 files changed, 0 insertions, 534 deletions
diff --git a/examples/standalone/Makefile b/examples/standalone/Makefile index 4a34813..d4be0c7 100644 --- a/examples/standalone/Makefile +++ b/examples/standalone/Makefile @@ -8,10 +8,6 @@ extra-$(CONFIG_SMC91111) += smc91111_eeprom extra-$(CONFIG_SPI_FLASH_ATMEL) += atmel_df_pow2 extra-$(CONFIG_PPC) += sched -ifndef CONFIG_DM_ETH -extra-$(CONFIG_SMC911X) += smc911x_eeprom -endif - # # Some versions of make do not handle trailing white spaces properly; # leading to build failures. The problem was found with GNU Make 3.80. diff --git a/examples/standalone/smc911x_eeprom.c b/examples/standalone/smc911x_eeprom.c deleted file mode 100644 index 9bd9a6e..0000000 --- a/examples/standalone/smc911x_eeprom.c +++ /dev/null @@ -1,530 +0,0 @@ -/* - * smc911x_eeprom.c - EEPROM interface to SMC911x parts. - * Only tested on SMSC9118 though ... - * - * Copyright 2004-2009 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. - * - * Based on smc91111_eeprom.c which: - * Heavily borrowed from the following peoples GPL'ed software: - * - Wolfgang Denk, DENX Software Engineering, wd@denx.de - * Das U-Boot - * - Ladislav Michl ladis@linux-mips.org - * A rejected patch on the U-Boot mailing list - */ - -#include <common.h> -#include <console.h> -#include <exports.h> -#include <net.h> -#include <linux/ctype.h> -#include <linux/types.h> -#include "../drivers/net/smc911x.h" - -#define DRIVERNAME "smc911x" - -#if defined (CONFIG_SMC911X_32_BIT) && \ - defined (CONFIG_SMC911X_16_BIT) -#error "SMC911X: Only one of CONFIG_SMC911X_32_BIT and \ - CONFIG_SMC911X_16_BIT shall be set" -#endif - -struct chip_id { - u16 id; - char *name; -}; - -static const struct chip_id chip_ids[] = { - { CHIP_89218, "LAN89218" }, - { CHIP_9115, "LAN9115" }, - { CHIP_9116, "LAN9116" }, - { CHIP_9117, "LAN9117" }, - { CHIP_9118, "LAN9118" }, - { CHIP_9211, "LAN9211" }, - { CHIP_9215, "LAN9215" }, - { CHIP_9216, "LAN9216" }, - { CHIP_9217, "LAN9217" }, - { CHIP_9218, "LAN9218" }, - { CHIP_9220, "LAN9220" }, - { CHIP_9221, "LAN9221" }, - { 0, NULL }, -}; - -#if defined (CONFIG_SMC911X_32_BIT) -static u32 smc911x_reg_read(struct eth_device *dev, u32 offset) -{ - return *(volatile u32*)(dev->iobase + offset); -} - -static void smc911x_reg_write(struct eth_device *dev, u32 offset, u32 val) -{ - *(volatile u32*)(dev->iobase + offset) = val; -} -#elif defined (CONFIG_SMC911X_16_BIT) -static u32 smc911x_reg_read(struct eth_device *dev, u32 offset) -{ - volatile u16 *addr_16 = (u16 *)(dev->iobase + offset); - return (*addr_16 & 0x0000ffff) | (*(addr_16 + 1) << 16); -} -static void smc911x_reg_write(struct eth_device *dev, u32 offset, u32 val) -{ - *(volatile u16 *)(dev->iobase + offset) = (u16)val; - *(volatile u16 *)(dev->iobase + offset + 2) = (u16)(val >> 16); -} -#else -#error "SMC911X: undefined bus width" -#endif /* CONFIG_SMC911X_16_BIT */ - -static u32 smc911x_get_mac_csr(struct eth_device *dev, u8 reg) -{ - while (smc911x_reg_read(dev, MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY) - ; - smc911x_reg_write(dev, MAC_CSR_CMD, - MAC_CSR_CMD_CSR_BUSY | MAC_CSR_CMD_R_NOT_W | reg); - while (smc911x_reg_read(dev, MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY) - ; - - return smc911x_reg_read(dev, MAC_CSR_DATA); -} - -static void smc911x_set_mac_csr(struct eth_device *dev, u8 reg, u32 data) -{ - while (smc911x_reg_read(dev, MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY) - ; - smc911x_reg_write(dev, MAC_CSR_DATA, data); - smc911x_reg_write(dev, MAC_CSR_CMD, MAC_CSR_CMD_CSR_BUSY | reg); - while (smc911x_reg_read(dev, MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY) - ; -} - -static int smc911x_detect_chip(struct eth_device *dev) -{ - unsigned long val, i; - - val = smc911x_reg_read(dev, BYTE_TEST); - if (val == 0xffffffff) { - /* Special case -- no chip present */ - return -1; - } else if (val != 0x87654321) { - printf(DRIVERNAME ": Invalid chip endian 0x%08lx\n", val); - return -1; - } - - val = smc911x_reg_read(dev, ID_REV) >> 16; - for (i = 0; chip_ids[i].id != 0; i++) { - if (chip_ids[i].id == val) break; - } - if (!chip_ids[i].id) { - printf(DRIVERNAME ": Unknown chip ID %04lx\n", val); - return -1; - } - - dev->priv = (void *)&chip_ids[i]; - - return 0; -} - -static void smc911x_reset(struct eth_device *dev) -{ - int timeout; - - /* - * Take out of PM setting first - * Device is already wake up if PMT_CTRL_READY bit is set - */ - if ((smc911x_reg_read(dev, PMT_CTRL) & PMT_CTRL_READY) == 0) { - /* Write to the bytetest will take out of powerdown */ - smc911x_reg_write(dev, BYTE_TEST, 0x0); - - timeout = 10; - - while (timeout-- && - !(smc911x_reg_read(dev, PMT_CTRL) & PMT_CTRL_READY)) - udelay(10); - if (timeout < 0) { - printf(DRIVERNAME - ": timeout waiting for PM restore\n"); - return; - } - } - - /* Disable interrupts */ - smc911x_reg_write(dev, INT_EN, 0); - - smc911x_reg_write(dev, HW_CFG, HW_CFG_SRST); - - timeout = 1000; - while (timeout-- && smc911x_reg_read(dev, E2P_CMD) & E2P_CMD_EPC_BUSY) - udelay(10); - - if (timeout < 0) { - printf(DRIVERNAME ": reset timeout\n"); - return; - } - - /* Reset the FIFO level and flow control settings */ - smc911x_set_mac_csr(dev, FLOW, FLOW_FCPT | FLOW_FCEN); - smc911x_reg_write(dev, AFC_CFG, 0x0050287F); - - /* Set to LED outputs */ - smc911x_reg_write(dev, GPIO_CFG, 0x70070000); -} - -/** - * smsc_ctrlc - detect press of CTRL+C (common ctrlc() isnt exported!?) - */ -static int smsc_ctrlc(void) -{ - return (tstc() && getc() == 0x03); -} - -/** - * usage - dump usage information - */ -static void usage(void) -{ - puts( - "MAC/EEPROM Commands:\n" - " P : Print the MAC addresses\n" - " D : Dump the EEPROM contents\n" - " M : Dump the MAC contents\n" - " C : Copy the MAC address from the EEPROM to the MAC\n" - " W : Write a register in the EEPROM or in the MAC\n" - " Q : Quit\n" - "\n" - "Some commands take arguments:\n" - " W <E|M> <register> <value>\n" - " E: EEPROM M: MAC\n" - ); -} - -/** - * dump_regs - dump the MAC registers - * - * Registers 0x00 - 0x50 are FIFOs. The 0x50+ are the control registers - * and they're all 32bits long. 0xB8+ are reserved, so don't bother. - */ -static void dump_regs(struct eth_device *dev) -{ - u8 i, j = 0; - for (i = 0x50; i < 0xB8; i += sizeof(u32)) - printf("%02x: 0x%08x %c", i, - smc911x_reg_read(dev, i), - (j++ % 2 ? '\n' : ' ')); -} - -/** - * do_eeprom_cmd - handle eeprom communication - */ -static int do_eeprom_cmd(struct eth_device *dev, int cmd, u8 reg) -{ - if (smc911x_reg_read(dev, E2P_CMD) & E2P_CMD_EPC_BUSY) { - printf("eeprom_cmd: busy at start (E2P_CMD = 0x%08x)\n", - smc911x_reg_read(dev, E2P_CMD)); - return -1; - } - - smc911x_reg_write(dev, E2P_CMD, E2P_CMD_EPC_BUSY | cmd | reg); - - while (smc911x_reg_read(dev, E2P_CMD) & E2P_CMD_EPC_BUSY) - if (smsc_ctrlc()) { - printf("eeprom_cmd: timeout (E2P_CMD = 0x%08x)\n", - smc911x_reg_read(dev, E2P_CMD)); - return -1; - } - - return 0; -} - -/** - * read_eeprom_reg - read specified register in EEPROM - */ -static u8 read_eeprom_reg(struct eth_device *dev, u8 reg) -{ - int ret = do_eeprom_cmd(dev, E2P_CMD_EPC_CMD_READ, reg); - return (ret ? : smc911x_reg_read(dev, E2P_DATA)); -} - -/** - * write_eeprom_reg - write specified value into specified register in EEPROM - */ -static int write_eeprom_reg(struct eth_device *dev, u8 value, u8 reg) -{ - int ret; - - /* enable erasing/writing */ - ret = do_eeprom_cmd(dev, E2P_CMD_EPC_CMD_EWEN, reg); - if (ret) - goto done; - - /* erase the eeprom reg */ - ret = do_eeprom_cmd(dev, E2P_CMD_EPC_CMD_ERASE, reg); - if (ret) - goto done; - - /* write the eeprom reg */ - smc911x_reg_write(dev, E2P_DATA, value); - ret = do_eeprom_cmd(dev, E2P_CMD_EPC_CMD_WRITE, reg); - if (ret) - goto done; - - /* disable erasing/writing */ - ret = do_eeprom_cmd(dev, E2P_CMD_EPC_CMD_EWDS, reg); - - done: - return ret; -} - -/** - * skip_space - find first non-whitespace in given pointer - */ -static char *skip_space(char *buf) -{ - while (isblank(buf[0])) - ++buf; - return buf; -} - -/** - * write_stuff - handle writing of MAC registers / eeprom - */ -static void write_stuff(struct eth_device *dev, char *line) -{ - char dest; - char *endp; - u8 reg; - u32 value; - - /* Skip over the "W " part of the command */ - line = skip_space(line + 1); - - /* Figure out destination */ - switch (line[0]) { - case 'E': - case 'M': - dest = line[0]; - break; - default: - invalid_usage: - printf("ERROR: Invalid write usage\n"); - usage(); - return; - } - - /* Get the register to write */ - line = skip_space(line + 1); - reg = simple_strtoul(line, &endp, 16); - if (line == endp) - goto invalid_usage; - - /* Get the value to write */ - line = skip_space(endp); - value = simple_strtoul(line, &endp, 16); - if (line == endp) - goto invalid_usage; - - /* Check for trailing cruft */ - line = skip_space(endp); - if (line[0]) - goto invalid_usage; - - /* Finally, execute the command */ - if (dest == 'E') { - printf("Writing EEPROM register %02x with %02x\n", reg, value); - write_eeprom_reg(dev, value, reg); - } else { - printf("Writing MAC register %02x with %08x\n", reg, value); - smc911x_reg_write(dev, reg, value); - } -} - -/** - * copy_from_eeprom - copy MAC address in eeprom to address registers - */ -static void copy_from_eeprom(struct eth_device *dev) -{ - ulong addrl = - read_eeprom_reg(dev, 0x01) | - read_eeprom_reg(dev, 0x02) << 8 | - read_eeprom_reg(dev, 0x03) << 16 | - read_eeprom_reg(dev, 0x04) << 24; - ulong addrh = - read_eeprom_reg(dev, 0x05) | - read_eeprom_reg(dev, 0x06) << 8; - smc911x_set_mac_csr(dev, ADDRL, addrl); - smc911x_set_mac_csr(dev, ADDRH, addrh); - puts("EEPROM contents copied to MAC\n"); -} - -/** - * print_macaddr - print MAC address registers and MAC address in eeprom - */ -static void print_macaddr(struct eth_device *dev) -{ - puts("Current MAC Address in MAC: "); - ulong addrl = smc911x_get_mac_csr(dev, ADDRL); - ulong addrh = smc911x_get_mac_csr(dev, ADDRH); - printf("%02x:%02x:%02x:%02x:%02x:%02x\n", - (u8)(addrl), (u8)(addrl >> 8), (u8)(addrl >> 16), - (u8)(addrl >> 24), (u8)(addrh), (u8)(addrh >> 8)); - - puts("Current MAC Address in EEPROM: "); - int i; - for (i = 1; i < 6; ++i) - printf("%02x:", read_eeprom_reg(dev, i)); - printf("%02x\n", read_eeprom_reg(dev, i)); -} - -/** - * dump_eeprom - dump the whole content of the EEPROM - */ -static void dump_eeprom(struct eth_device *dev) -{ - int i; - puts("EEPROM:\n"); - for (i = 0; i < 7; ++i) - printf("%02x: 0x%02x\n", i, read_eeprom_reg(dev, i)); -} - -/** - * smc911x_init - get the MAC/EEPROM up and ready for use - */ -static int smc911x_init(struct eth_device *dev) -{ - /* See if there is anything there */ - if (smc911x_detect_chip(dev)) - return 1; - - smc911x_reset(dev); - - /* Make sure we set EEDIO/EECLK to the EEPROM */ - if (smc911x_reg_read(dev, GPIO_CFG) & GPIO_CFG_EEPR_EN) { - while (smc911x_reg_read(dev, E2P_CMD) & E2P_CMD_EPC_BUSY) - if (smsc_ctrlc()) { - printf("init: timeout (E2P_CMD = 0x%08x)\n", - smc911x_reg_read(dev, E2P_CMD)); - return 1; - } - smc911x_reg_write(dev, GPIO_CFG, - smc911x_reg_read(dev, GPIO_CFG) & ~GPIO_CFG_EEPR_EN); - } - - return 0; -} - -/** - * getline - consume a line of input and handle some escape sequences - */ -static char *getline(void) -{ - static char buffer[100]; - char c; - size_t i; - - i = 0; - while (1) { - buffer[i] = '\0'; - while (!tstc()) - continue; - - c = getc(); - /* Convert to uppercase */ - if (c >= 'a' && c <= 'z') - c -= ('a' - 'A'); - - switch (c) { - case '\r': /* Enter/Return key */ - case '\n': - puts("\n"); - return buffer; - - case 0x03: /* ^C - break */ - return NULL; - - case 0x5F: - case 0x08: /* ^H - backspace */ - case 0x7F: /* DEL - backspace */ - if (i) { - puts("\b \b"); - i--; - } - break; - - default: - /* Ignore control characters */ - if (c < 0x20) - break; - /* Queue up all other characters */ - buffer[i++] = c; - printf("%c", c); - break; - } - } -} - -/** - * smc911x_eeprom - our application's main() function - */ -int smc911x_eeprom(int argc, char *const argv[]) -{ - /* Avoid initializing on stack as gcc likes to call memset() */ - struct eth_device dev; - dev.iobase = CONFIG_SMC911X_BASE; - - /* Print the ABI version */ - app_startup(argv); - if (XF_VERSION != get_version()) { - printf("Expects ABI version %d\n", XF_VERSION); - printf("Actual U-Boot ABI version %lu\n", get_version()); - printf("Can't run\n\n"); - return 1; - } - - /* Initialize the MAC/EEPROM somewhat */ - puts("\n"); - if (smc911x_init(&dev)) - return 1; - - /* Dump helpful usage information */ - puts("\n"); - usage(); - puts("\n"); - - while (1) { - char *line; - - /* Send the prompt and wait for a line */ - puts("eeprom> "); - line = getline(); - - /* Got a ctrl+c */ - if (!line) - return 0; - - /* Eat leading space */ - line = skip_space(line); - - /* Empty line, try again */ - if (!line[0]) - continue; - - /* Only accept 1 letter commands */ - if (line[0] && line[1] && !isblank(line[1])) - goto unknown_cmd; - - /* Now parse the command */ - switch (line[0]) { - case 'W': write_stuff(&dev, line); break; - case 'D': dump_eeprom(&dev); break; - case 'M': dump_regs(&dev); break; - case 'C': copy_from_eeprom(&dev); break; - case 'P': print_macaddr(&dev); break; - unknown_cmd: - default: puts("ERROR: Unknown command!\n\n"); - case '?': - case 'H': usage(); break; - case 'Q': return 0; - } - } -} |