Clean up the SROM accessors to bring them up to standards with U-Boot coding style. Sort variable into reverse xmas tree. No functional change.
Signed-off-by: Marek Vasut marek.vasut+renesas@gmail.com Cc: Joe Hershberger joe.hershberger@ni.com --- drivers/net/dc2114x.c | 117 +++++++++++++++++++++++------------------- 1 file changed, 63 insertions(+), 54 deletions(-)
diff --git a/drivers/net/dc2114x.c b/drivers/net/dc2114x.c index bd64c75af4..b375906e27 100644 --- a/drivers/net/dc2114x.c +++ b/drivers/net/dc2114x.c @@ -441,30 +441,27 @@ static void send_setup_frame(struct eth_device *dev, bd_t *bis) }
/* SROM Read and write routines. */ -static void -sendto_srom(struct eth_device* dev, u_int command, u_long addr) +static void sendto_srom(struct eth_device *dev, u_int command, u_long addr) { OUTL(dev, command, addr); udelay(1); }
-static int -getfrom_srom(struct eth_device* dev, u_long addr) +static int getfrom_srom(struct eth_device *dev, u_long addr) { - s32 tmp; + s32 tmp = INL(dev, addr);
- tmp = INL(dev, addr); udelay(1); - return tmp; }
/* Note: this routine returns extra data bits for size detection. */ -static int do_read_eeprom(struct eth_device *dev, u_long ioaddr, int location, int addr_len) +static int do_read_eeprom(struct eth_device *dev, u_long ioaddr, int location, + int addr_len) { - int i; - unsigned retval = 0; int read_cmd = location | (SROM_READ_CMD << addr_len); + unsigned int retval = 0; + int i;
sendto_srom(dev, SROM_RD | SROM_SR, ioaddr); sendto_srom(dev, SROM_RD | SROM_SR | DT_CS, ioaddr); @@ -476,14 +473,18 @@ static int do_read_eeprom(struct eth_device *dev, u_long ioaddr, int location, i /* Shift the read command bits out. */ for (i = 4 + addr_len; i >= 0; i--) { short dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0; - sendto_srom(dev, SROM_RD | SROM_SR | DT_CS | dataval, ioaddr); + + sendto_srom(dev, SROM_RD | SROM_SR | DT_CS | dataval, + ioaddr); udelay(10); - sendto_srom(dev, SROM_RD | SROM_SR | DT_CS | dataval | DT_CLK, ioaddr); + sendto_srom(dev, SROM_RD | SROM_SR | DT_CS | dataval | DT_CLK, + ioaddr); udelay(10); #ifdef DEBUG_SROM2 printf("%X", getfrom_srom(dev, ioaddr) & 15); #endif - retval = (retval << 1) | ((getfrom_srom(dev, ioaddr) & EE_DATA_READ) ? 1 : 0); + retval = (retval << 1) | + !!(getfrom_srom(dev, ioaddr) & EE_DATA_READ); }
sendto_srom(dev, SROM_RD | SROM_SR | DT_CS, ioaddr); @@ -498,7 +499,8 @@ static int do_read_eeprom(struct eth_device *dev, u_long ioaddr, int location, i #ifdef DEBUG_SROM2 printf("%X", getfrom_srom(dev, ioaddr) & 15); #endif - retval = (retval << 1) | ((getfrom_srom(dev, ioaddr) & EE_DATA_READ) ? 1 : 0); + retval = (retval << 1) | + !!(getfrom_srom(dev, ioaddr) & EE_DATA_READ); sendto_srom(dev, SROM_RD | SROM_SR | DT_CS, ioaddr); udelay(10); } @@ -518,34 +520,38 @@ static int do_read_eeprom(struct eth_device *dev, u_long ioaddr, int location, i * enable. It returns the data output from the EEPROM, and thus may * also be used for reads. */ -static int do_eeprom_cmd(struct eth_device *dev, u_long ioaddr, int cmd, int cmd_len) +static int do_eeprom_cmd(struct eth_device *dev, u_long ioaddr, int cmd, + int cmd_len) { - unsigned retval = 0; + unsigned int retval = 0;
#ifdef DEBUG_SROM printf(" EEPROM op 0x%x: ", cmd); #endif
- sendto_srom(dev,SROM_RD | SROM_SR | DT_CS | DT_CLK, ioaddr); + sendto_srom(dev, SROM_RD | SROM_SR | DT_CS | DT_CLK, ioaddr);
/* Shift the command bits out. */ do { - short dataval = (cmd & (1 << cmd_len)) ? EE_WRITE_1 : EE_WRITE_0; - sendto_srom(dev,dataval, ioaddr); + short dataval = (cmd & BIT(cmd_len)) ? EE_WRITE_1 : EE_WRITE_0; + + sendto_srom(dev, dataval, ioaddr); udelay(10);
#ifdef DEBUG_SROM2 - printf("%X", getfrom_srom(dev,ioaddr) & 15); + printf("%X", getfrom_srom(dev, ioaddr) & 15); #endif
- sendto_srom(dev,dataval | DT_CLK, ioaddr); + sendto_srom(dev, dataval | DT_CLK, ioaddr); udelay(10); - retval = (retval << 1) | ((getfrom_srom(dev,ioaddr) & EE_DATA_READ) ? 1 : 0); + retval = (retval << 1) | + !!(getfrom_srom(dev, ioaddr) & EE_DATA_READ); } while (--cmd_len >= 0); - sendto_srom(dev,SROM_RD | SROM_SR | DT_CS, ioaddr); + + sendto_srom(dev, SROM_RD | SROM_SR | DT_CS, ioaddr);
/* Terminate the EEPROM access. */ - sendto_srom(dev,SROM_RD | SROM_SR, ioaddr); + sendto_srom(dev, SROM_RD | SROM_SR, ioaddr);
#ifdef DEBUG_SROM printf(" EEPROM result is 0x%5.5x.\n", retval); @@ -556,21 +562,26 @@ static int do_eeprom_cmd(struct eth_device *dev, u_long ioaddr, int cmd, int cmd
static int read_srom(struct eth_device *dev, u_long ioaddr, int index) { - int ee_addr_size = do_read_eeprom(dev, ioaddr, 0xff, 8) & 0x40000 ? 8 : 6; + int ee_addr_size;
- return do_eeprom_cmd(dev, ioaddr, - (((SROM_READ_CMD << ee_addr_size) | index) << 16) - | 0xffff, 3 + ee_addr_size + 16); + ee_addr_size = (do_read_eeprom(dev, ioaddr, 0xff, 8) & BIT(18)) ? 8 : 6; + + return do_eeprom_cmd(dev, ioaddr, 0xffff | + (((SROM_READ_CMD << ee_addr_size) | index) << 16), + 3 + ee_addr_size + 16); }
#ifdef UPDATE_SROM -static int write_srom(struct eth_device *dev, u_long ioaddr, int index, int new_value) +static int write_srom(struct eth_device *dev, u_long ioaddr, int index, + int new_value) { - int ee_addr_size = do_read_eeprom(dev, ioaddr, 0xff, 8) & 0x40000 ? 8 : 6; - int i; unsigned short newval; + int ee_addr_size; + int i;
- udelay(10*1000); /* test-only */ + ee_addr_size = (do_read_eeprom(dev, ioaddr, 0xff, 8) & BIT(18)) ? 8 : 6; + + udelay(10 * 1000); /* test-only */
#ifdef DEBUG_SROM printf("ee_addr_size=%d.\n", ee_addr_size); @@ -578,33 +589,37 @@ static int write_srom(struct eth_device *dev, u_long ioaddr, int index, int new_ #endif
/* Enable programming modes. */ - do_eeprom_cmd(dev, ioaddr, (0x4f << (ee_addr_size-4)), 3+ee_addr_size); + do_eeprom_cmd(dev, ioaddr, 0x4f << (ee_addr_size - 4), + 3 + ee_addr_size);
/* Do the actual write. */ - do_eeprom_cmd(dev, ioaddr, - (((SROM_WRITE_CMD<<ee_addr_size)|index) << 16) | new_value, + do_eeprom_cmd(dev, ioaddr, new_value | + (((SROM_WRITE_CMD << ee_addr_size) | index) << 16), 3 + ee_addr_size + 16);
/* Poll for write finished. */ sendto_srom(dev, SROM_RD | SROM_SR | DT_CS, ioaddr); - for (i = 0; i < 10000; i++) /* Typical 2000 ticks */ + for (i = 0; i < 10000; i++) { /* Typical 2000 ticks */ if (getfrom_srom(dev, ioaddr) & EE_DATA_READ) break; + }
#ifdef DEBUG_SROM printf(" Write finished after %d ticks.\n", i); #endif
/* Disable programming. */ - do_eeprom_cmd(dev, ioaddr, (0x40 << (ee_addr_size-4)), 3 + ee_addr_size); + do_eeprom_cmd(dev, ioaddr, (0x40 << (ee_addr_size - 4)), + 3 + ee_addr_size);
/* And read the result. */ newval = do_eeprom_cmd(dev, ioaddr, - (((SROM_READ_CMD<<ee_addr_size)|index) << 16) + (((SROM_READ_CMD << ee_addr_size) | index) << 16) | 0xffff, 3 + ee_addr_size + 16); #ifdef DEBUG_SROM printf(" New value at offset %d is %4.4x.\n", index, newval); #endif + return 1; } #endif @@ -615,30 +630,23 @@ static void read_hw_addr(struct eth_device *dev, bd_t *bis) int i, j = 0;
for (i = 0; i < (ETH_ALEN >> 1); i++) { - tmp = read_srom(dev, DE4X5_APROM, ((SROM_HWADD >> 1) + i)); + tmp = read_srom(dev, DE4X5_APROM, (SROM_HWADD >> 1) + i); *p = le16_to_cpu(tmp); j += *p++; }
- if ((j == 0) || (j == 0x2fffd)) { - memset (dev->enetaddr, 0, ETH_ALEN); - debug ("Warning: can't read HW address from SROM.\n"); - goto Done; - } - - return; - -Done: + if (!j || j == 0x2fffd) { + memset(dev->enetaddr, 0, ETH_ALEN); + debug("Warning: can't read HW address from SROM.\n"); #ifdef UPDATE_SROM - update_srom(dev, bis); + update_srom(dev, bis); #endif - return; + } }
#ifdef UPDATE_SROM static void update_srom(struct eth_device *dev, bd_t *bis) { - int i; static unsigned short eeprom[0x40] = { 0x140b, 0x6610, 0x0000, 0x0000, /* 00 */ 0x0000, 0x0000, 0x0000, 0x0000, /* 04 */ @@ -658,16 +666,17 @@ static void update_srom(struct eth_device *dev, bd_t *bis) 0x0000, 0x0000, 0x0000, 0x4e07, /* 3c */ }; uchar enetaddr[6]; + int i;
/* Ethernet Addr... */ if (!eth_env_get_enetaddr("ethaddr", enetaddr)) return; + eeprom[0x0a] = (enetaddr[1] << 8) | enetaddr[0]; eeprom[0x0b] = (enetaddr[3] << 8) | enetaddr[2]; eeprom[0x0c] = (enetaddr[5] << 8) | enetaddr[4];
- for (i=0; i<0x40; i++) { + for (i = 0; i < 0x40; i++) write_srom(dev, DE4X5_APROM, i, eeprom[i]); - } } -#endif /* UPDATE_SROM */ +#endif /* UPDATE_SROM */