diff options
Diffstat (limited to 'src/southbridge/amd/cimx/sb800/smbus.c')
| -rw-r--r-- | src/southbridge/amd/cimx/sb800/smbus.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/southbridge/amd/cimx/sb800/smbus.c b/src/southbridge/amd/cimx/sb800/smbus.c index 4b13fdbd81..4dc76ba1b3 100644 --- a/src/southbridge/amd/cimx/sb800/smbus.c +++ b/src/southbridge/amd/cimx/sb800/smbus.c @@ -20,6 +20,7 @@ #include <arch/io.h> #include "smbus.h" +#include <console/console.h> /* printk */ static inline void smbus_delay(void) { @@ -71,9 +72,11 @@ int do_smbus_recv_byte(u32 smbus_io_base, u32 device) u8 byte; if (smbus_wait_until_ready(smbus_io_base) < 0) { + printk(BIOS_DEBUG, "SB800 - Smbus.c - do_smbus_recv_byte - smbus not ready.\n"); return -2; /* not ready */ } + printk(BIOS_DEBUG, "SB800 - Smbus.c - do_smbus_recv_byte - Start.\n"); /* set the device I'm talking too */ outb(((device & 0x7f) << 1) | 1, smbus_io_base + SMBHSTADDR); @@ -90,6 +93,7 @@ int do_smbus_recv_byte(u32 smbus_io_base, u32 device) /* read results of transaction */ byte = inb(smbus_io_base + SMBHSTCMD); + printk(BIOS_DEBUG, "SB800 - Smbus.c - do_smbus_recv_byte - End.\n"); return byte; } @@ -98,9 +102,11 @@ int do_smbus_send_byte(u32 smbus_io_base, u32 device, u8 val) u8 byte; if (smbus_wait_until_ready(smbus_io_base) < 0) { + printk(BIOS_DEBUG, "SB800 - Smbus.c - do_smbus_send_byte - smbus not ready.\n"); return -2; /* not ready */ } + printk(BIOS_DEBUG, "SB800 - Smbus.c - do_smbus_send_byte - Start.\n"); /* set the command... */ outb(val, smbus_io_base + SMBHSTCMD); @@ -117,6 +123,7 @@ int do_smbus_send_byte(u32 smbus_io_base, u32 device, u8 val) return -3; /* timeout or error */ } + printk(BIOS_DEBUG, "SB800 - Smbus.c - do_smbus_send_byte - End.\n"); return 0; } @@ -125,9 +132,11 @@ int do_smbus_read_byte(u32 smbus_io_base, u32 device, u32 address) u8 byte; if (smbus_wait_until_ready(smbus_io_base) < 0) { + printk(BIOS_DEBUG, "SB800 - Smbus.c - do_smbus_read_byte - smbus not ready.\n"); return -2; /* not ready */ } + printk(BIOS_DEBUG, "SB800 - Smbus.c - do_smbus_read_byte - Start.\n"); /* set the command/address... */ outb(address & 0xff, smbus_io_base + SMBHSTCMD); @@ -147,6 +156,7 @@ int do_smbus_read_byte(u32 smbus_io_base, u32 device, u32 address) /* read results of transaction */ byte = inb(smbus_io_base + SMBHSTDAT0); + printk(BIOS_DEBUG, "SB800 - Smbus.c - do_smbus_read_byte - End.\n"); return byte; } @@ -155,9 +165,11 @@ int do_smbus_write_byte(u32 smbus_io_base, u32 device, u32 address, u8 val) u8 byte; if (smbus_wait_until_ready(smbus_io_base) < 0) { + printk(BIOS_DEBUG, "SB800 - Smbus.c - do_smbus_write_byte - smbus not ready.\n"); return -2; /* not ready */ } + printk(BIOS_DEBUG, "SB800 - Smbus.c - do_smbus_write_byte - Start.\n"); /* set the command/address... */ outb(address & 0xff, smbus_io_base + SMBHSTCMD); @@ -177,6 +189,7 @@ int do_smbus_write_byte(u32 smbus_io_base, u32 device, u32 address, u8 val) return -3; /* timeout or error */ } + printk(BIOS_DEBUG, "SB800 - Smbus.c - do_smbus_write_byte - End.\n"); return 0; } @@ -184,6 +197,7 @@ void alink_ab_indx(u32 reg_space, u32 reg_addr, u32 mask, u32 val) { u32 tmp; + printk(BIOS_DEBUG, "SB800 - Smbus.c - alink_ab_indx - Start.\n"); outl((reg_space & 0x7) << 29 | reg_addr, AB_INDX); tmp = inl(AB_DATA); /* rpr 4.2 @@ -199,12 +213,14 @@ void alink_ab_indx(u32 reg_space, u32 reg_addr, u32 mask, u32 val) outl((reg_space & 0x7) << 29 | reg_addr, AB_INDX); /* probably we dont have to do it again. */ outl(tmp, AB_DATA); outl(0, AB_INDX); + printk(BIOS_DEBUG, "SB800 - Smbus.c - alink_ab_indx - End.\n"); } void alink_rc_indx(u32 reg_space, u32 reg_addr, u32 port, u32 mask, u32 val) { u32 tmp; + printk(BIOS_DEBUG, "SB800 - Smbus.c - alink_rc_indx - Start.\n"); outl((reg_space & 0x7) << 29 | (port & 3) << 24 | reg_addr, AB_INDX); tmp = inl(AB_DATA); /* rpr 4.2 @@ -220,6 +236,7 @@ void alink_rc_indx(u32 reg_space, u32 reg_addr, u32 port, u32 mask, u32 val) outl((reg_space & 0x7) << 29 | (port & 3) << 24 | reg_addr, AB_INDX); /* probably we dont have to do it again. */ outl(tmp, AB_DATA); outl(0, AB_INDX); + printk(BIOS_DEBUG, "SB800 - Smbus.c - alink_rc_indx - End.\n"); } /* space = 0: AX_INDXC, AX_DATAC @@ -229,6 +246,7 @@ void alink_ax_indx(u32 space /*c or p? */ , u32 axindc, u32 mask, u32 val) { u32 tmp; + printk(BIOS_DEBUG, "SB800 - Smbus.c - alink_ax_indx - Start.\n"); /* read axindc to tmp */ outl(space << 29 | space << 3 | 0x30, AB_INDX); outl(axindc, AB_DATA); @@ -247,5 +265,6 @@ void alink_ax_indx(u32 space /*c or p? */ , u32 axindc, u32 mask, u32 val) outl(space << 29 | space << 3 | 0x34, AB_INDX); outl(tmp, AB_DATA); outl(0, AB_INDX); + printk(BIOS_DEBUG, "SB800 - Smbus.c - alink_ax_indx - End.\n"); } |