summaryrefslogtreecommitdiff
path: root/board/amirix/ap1000/powerspan.c
diff options
context:
space:
mode:
authorWolfgang Denk <wd@pollux.denx.de>2005-10-09 01:04:33 +0200
committerWolfgang Denk <wd@pollux.denx.de>2005-10-09 01:04:33 +0200
commit7521af1c7d95ff087a4f7636ed050f4d4be91b59 (patch)
treeacd83b262b72925dba271c7e0bcb0dcf7072bdae /board/amirix/ap1000/powerspan.c
parent95f9dda2165f045a7e1708885ee589878cc6f20b (diff)
downloadu-boot-imx-7521af1c7d95ff087a4f7636ed050f4d4be91b59.zip
u-boot-imx-7521af1c7d95ff087a4f7636ed050f4d4be91b59.tar.gz
u-boot-imx-7521af1c7d95ff087a4f7636ed050f4d4be91b59.tar.bz2
Add support for AP1000 board.
Patch by James MacAulay, 07 Oct 2005
Diffstat (limited to 'board/amirix/ap1000/powerspan.c')
-rw-r--r--board/amirix/ap1000/powerspan.c712
1 files changed, 712 insertions, 0 deletions
diff --git a/board/amirix/ap1000/powerspan.c b/board/amirix/ap1000/powerspan.c
new file mode 100644
index 0000000..fe395cc
--- /dev/null
+++ b/board/amirix/ap1000/powerspan.c
@@ -0,0 +1,712 @@
+/**
+ * @file powerspan.c Source file for PowerSpan II code.
+ */
+
+/*
+ * (C) Copyright 2005
+ * AMIRIX Systems Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <command.h>
+#include <asm/processor.h>
+#include "powerspan.h"
+#define tolower(x) x
+#include "ap1000.h"
+
+#ifdef INCLUDE_PCI
+
+/** Write one byte with byte swapping.
+ * @param addr [IN] the address to write to
+ * @param val [IN] the value to write
+ */
+void write1(unsigned long addr, unsigned char val) {
+ volatile unsigned char* p = (volatile unsigned char*)addr;
+#ifdef VERBOSITY
+ if(gVerbosityLevel > 1){
+ printf("write1: addr=%08x val=%02x\n", addr, val);
+ }
+#endif
+ *p = val;
+ PSII_SYNC();
+}
+
+/** Read one byte with byte swapping.
+ * @param addr [IN] the address to read from
+ * @return the value at addr
+ */
+unsigned char read1(unsigned long addr) {
+ unsigned char val;
+ volatile unsigned char* p = (volatile unsigned char*)addr;
+
+ val = *p;
+ PSII_SYNC();
+#ifdef VERBOSITY
+ if(gVerbosityLevel > 1){
+ printf("read1: addr=%08x val=%02x\n", addr, val);
+ }
+#endif
+ return val;
+}
+
+/** Write one 2-byte word with byte swapping.
+ * @param addr [IN] the address to write to
+ * @param val [IN] the value to write
+ */
+void write2(unsigned long addr, unsigned short val) {
+ volatile unsigned short* p = (volatile unsigned short*)addr;
+
+#ifdef VERBOSITY
+ if(gVerbosityLevel > 1){
+ printf("write2: addr=%08x val=%04x -> *p=%04x\n", addr, val,
+ ((val & 0xFF00) >> 8) | ((val & 0x00FF) << 8));
+ }
+#endif
+ *p = ((val & 0xFF00) >> 8) | ((val & 0x00FF) << 8);
+ PSII_SYNC();
+}
+
+/** Read one 2-byte word with byte swapping.
+ * @param addr [IN] the address to read from
+ * @return the value at addr
+ */
+unsigned short read2(unsigned long addr) {
+ unsigned short val;
+ volatile unsigned short* p = (volatile unsigned short*)addr;
+
+ val = *p;
+ val = ((val & 0xFF00) >> 8) | ((val & 0x00FF) << 8);
+ PSII_SYNC();
+#ifdef VERBOSITY
+ if(gVerbosityLevel > 1){
+ printf("read2: addr=%08x *p=%04x -> val=%04x\n", addr, *p, val);
+ }
+#endif
+ return val;
+}
+
+/** Write one 4-byte word with byte swapping.
+ * @param addr [IN] the address to write to
+ * @param val [IN] the value to write
+ */
+void write4(unsigned long addr, unsigned long val) {
+ volatile unsigned long* p = (volatile unsigned long*)addr;
+#ifdef VERBOSITY
+ if(gVerbosityLevel > 1){
+ printf("write4: addr=%08x val=%08x -> *p=%08x\n", addr, val,
+ ((val & 0xFF000000) >> 24) | ((val & 0x000000FF) << 24) |
+ ((val & 0x00FF0000) >> 8) | ((val & 0x0000FF00) << 8));
+ }
+#endif
+ *p = ((val & 0xFF000000) >> 24) | ((val & 0x000000FF) << 24) |
+ ((val & 0x00FF0000) >> 8) | ((val & 0x0000FF00) << 8);
+ PSII_SYNC();
+}
+
+/** Read one 4-byte word with byte swapping.
+ * @param addr [IN] the address to read from
+ * @return the value at addr
+ */
+unsigned long read4(unsigned long addr) {
+ unsigned long val;
+ volatile unsigned long* p = (volatile unsigned long*)addr;
+
+ val = *p;
+ val = ((val & 0xFF000000) >> 24) | ((val & 0x000000FF) << 24) |
+ ((val & 0x00FF0000) >> 8) | ((val & 0x0000FF00) << 8);
+ PSII_SYNC();
+#ifdef VERBOSITY
+ if(gVerbosityLevel > 1){
+ printf("read4: addr=%08x *p=%08x -> val=%08x\n", addr, *p, val);
+ }
+#endif
+ return val;
+}
+
+int PCIReadConfig(int bus, int dev, int fn, int reg, int width, unsigned long* val){
+ unsigned int conAdrVal;
+ unsigned int conDataReg = REG_CONFIG_DATA;
+ unsigned int status;
+ int ret_val = 0;
+
+
+ /* DEST bit hardcoded to 1: local pci is PCI-2 */
+ /* TYPE bit is hardcoded to 1: all config cycles are local */
+ conAdrVal = (1 << 24)
+ | ((bus & 0xFF) << 16)
+ | ((dev & 0xFF) << 11)
+ | ((fn & 0x07) << 8)
+ | (reg & 0xFC);
+
+ /* clear any pending master aborts */
+ write4(REG_P1_CSR, CLEAR_MASTER_ABORT);
+
+ /* Load the conAdrVal value first, then read from pb_conf_data */
+ write4(REG_CONFIG_ADDRESS, conAdrVal);
+ PSII_SYNC();
+
+
+ /* Note: documentation does not match the pspan library code */
+ /* Note: *pData comes back as -1 if device is not present */
+ switch (width){
+ case 4:{
+ *(unsigned int*)val = read4(conDataReg);
+ break;
+ }
+ case 2:{
+ *(unsigned short*)val = read2(conDataReg);
+ break;
+ }
+ case 1:{
+ *(unsigned char*)val = read1(conDataReg);
+ break;
+ }
+ default:{
+ ret_val = ILLEGAL_REG_OFFSET;
+ break;
+ }
+ }
+ PSII_SYNC();
+
+ /* clear any pending master aborts */
+ status = read4(REG_P1_CSR);
+ if(status & CLEAR_MASTER_ABORT){
+ ret_val = NO_DEVICE_FOUND;
+ write4(REG_P1_CSR, CLEAR_MASTER_ABORT);
+ }
+
+ return ret_val;
+}
+
+
+int PCIWriteConfig(int bus, int dev, int fn, int reg, int width, unsigned long val){
+ unsigned int conAdrVal;
+ unsigned int conDataReg = REG_CONFIG_DATA;
+ unsigned int status;
+ int ret_val = 0;
+
+
+ /* DEST bit hardcoded to 1: local pci is PCI-2 */
+ /* TYPE bit is hardcoded to 1: all config cycles are local */
+ conAdrVal = (1 << 24)
+ | ((bus & 0xFF) << 16)
+ | ((dev & 0xFF) << 11)
+ | ((fn & 0x07) << 8)
+ | (reg & 0xFC);
+
+ /* clear any pending master aborts */
+ write4(REG_P1_CSR, CLEAR_MASTER_ABORT);
+
+ /* Load the conAdrVal value first, then read from pb_conf_data */
+ write4(REG_CONFIG_ADDRESS, conAdrVal);
+ PSII_SYNC();
+
+
+ /* Note: documentation does not match the pspan library code */
+ /* Note: *pData comes back as -1 if device is not present */
+ switch (width){
+ case 4:{
+ write4(conDataReg, val);
+ break;
+ }
+ case 2:{
+ write2(conDataReg, val);
+ break;
+ }
+ case 1:{
+ write1(conDataReg, val);
+ break;
+ }
+ default:{
+ ret_val = ILLEGAL_REG_OFFSET;
+ break;
+ }
+ }
+ PSII_SYNC();
+
+ /* clear any pending master aborts */
+ status = read4(REG_P1_CSR);
+ if(status & CLEAR_MASTER_ABORT){
+ ret_val = NO_DEVICE_FOUND;
+ write4(REG_P1_CSR, CLEAR_MASTER_ABORT);
+ }
+
+ return ret_val;
+}
+
+
+int pci_read_config_byte(int bus, int dev, int fn, int reg, unsigned char* val){
+ unsigned long read_val;
+ int ret_val;
+
+ ret_val = PCIReadConfig(bus, dev, fn, reg, 1, &read_val);
+ *val = read_val & 0xFF;
+
+ return ret_val;
+}
+
+int pci_write_config_byte(int bus, int dev, int fn, int reg, unsigned char val){
+ return PCIWriteConfig(bus, dev, fn, reg, 1, val);
+}
+
+int pci_read_config_word(int bus, int dev, int fn, int reg, unsigned short* val){
+ unsigned long read_val;
+ int ret_val;
+
+ ret_val = PCIReadConfig(bus, dev, fn, reg, 2, &read_val);
+ *val = read_val & 0xFFFF;
+
+ return ret_val;
+}
+
+int pci_write_config_word(int bus, int dev, int fn, int reg, unsigned short val){
+ return PCIWriteConfig(bus, dev, fn, reg, 2, val);
+}
+
+int pci_read_config_dword(int bus, int dev, int fn, int reg, unsigned long* val){
+ return PCIReadConfig(bus, dev, fn, reg, 4, val);
+}
+
+int pci_write_config_dword(int bus, int dev, int fn, int reg, unsigned long val){
+ return PCIWriteConfig(bus, dev, fn, reg, 4, val);
+}
+
+#endif /* INCLUDE_PCI */
+
+int I2CAccess(unsigned char theI2CAddress, unsigned char theDevCode, unsigned char theChipSel, unsigned char* theValue, int RWFlag){
+ int ret_val = 0;
+ unsigned int reg_value;
+
+ reg_value = PowerSpanRead(REG_I2C_CSR);
+
+ if(reg_value & I2C_CSR_ACT){
+ printf("Error: I2C busy\n");
+ ret_val = I2C_BUSY;
+ }
+ else{
+ reg_value = ((theI2CAddress & 0xFF) << 24)
+ | ((theDevCode & 0x0F) << 12)
+ | ((theChipSel & 0x07) << 9)
+ | I2C_CSR_ERR;
+ if(RWFlag == I2C_WRITE){
+ reg_value |= I2C_CSR_RW | ((*theValue & 0xFF) << 16);
+ }
+
+ PowerSpanWrite(REG_I2C_CSR, reg_value);
+ udelay(1);
+
+ do{
+ reg_value = PowerSpanRead(REG_I2C_CSR);
+
+ if((reg_value & I2C_CSR_ACT) == 0){
+ if(reg_value & I2C_CSR_ERR){
+ ret_val = I2C_ERR;
+ }
+ else{
+ *theValue = (reg_value & I2C_CSR_DATA) >> 16;
+ }
+ }
+ } while(reg_value & I2C_CSR_ACT);
+ }
+
+ return ret_val;
+}
+
+int EEPROMRead(unsigned char theI2CAddress, unsigned char* theValue){
+ return I2CAccess(theI2CAddress, I2C_EEPROM_DEV, I2C_EEPROM_CHIP_SEL, theValue, I2C_READ);
+}
+
+int EEPROMWrite(unsigned char theI2CAddress, unsigned char theValue){
+ return I2CAccess(theI2CAddress, I2C_EEPROM_DEV, I2C_EEPROM_CHIP_SEL, &theValue, I2C_WRITE);
+}
+
+int do_eeprom(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]){
+ char cmd;
+ int ret_val = 0;
+ unsigned int address = 0;
+ unsigned char value = 1;
+ unsigned char read_value;
+ int ii;
+ int error = 0;
+ unsigned char* mem_ptr;
+ unsigned char default_eeprom[] = EEPROM_DEFAULT;
+
+ if(argc < 2){
+ goto usage;
+ }
+
+ cmd = argv[1][0];
+ if(argc > 2){
+ address = simple_strtoul(argv[2], NULL, 16);
+ if(argc > 3){
+ value = simple_strtoul(argv[3], NULL, 16) & 0xFF;
+ }
+ }
+
+ switch (cmd){
+ case 'r':{
+ if(address > 256){
+ printf("Illegal Address\n");
+ goto usage;
+ }
+ printf("@0x%x: ", address);
+ for(ii = 0;ii < value;ii++){
+ if(EEPROMRead(address + ii, &read_value) != 0){
+ printf("Read Error\n");
+ }
+ else{
+ printf("0x%02x ", read_value);
+ }
+
+ if(((ii + 1) % 16) == 0){
+ printf("\n");
+ }
+ }
+ printf("\n");
+ break;
+ }
+ case 'w':{
+ if(address > 256){
+ printf("Illegal Address\n");
+ goto usage;
+ }
+ if(argc < 4){
+ goto usage;
+ }
+ if(EEPROMWrite(address, value) != 0){
+ printf("Write Error\n");
+ }
+ break;
+ }
+ case 'g':{
+ if(argc != 3){
+ goto usage;
+ }
+ mem_ptr = (unsigned char*)address;
+ for(ii = 0;((ii < EEPROM_LENGTH) && (error == 0));ii++){
+ if(EEPROMRead(ii, &read_value) != 0){
+ printf("Read Error\n");
+ error = 1;
+ }
+ else{
+ *mem_ptr = read_value;
+ mem_ptr++;
+ }
+ }
+ break;
+ }
+ case 'p':{
+ if(argc != 3){
+ goto usage;
+ }
+ mem_ptr = (unsigned char*)address;
+ for(ii = 0;((ii < EEPROM_LENGTH) && (error == 0));ii++){
+ if(EEPROMWrite(ii, *mem_ptr) != 0){
+ printf("Write Error\n");
+ error = 1;
+ }
+
+ mem_ptr++;
+ }
+ break;
+ }
+ case 'd':{
+ if(argc != 2){
+ goto usage;
+ }
+ for(ii = 0;((ii < EEPROM_LENGTH) && (error == 0));ii++){
+ if(EEPROMWrite(ii, default_eeprom[ii]) != 0){
+ printf("Write Error\n");
+ error = 1;
+ }
+ }
+ break;
+ }
+ default:{
+ goto usage;
+ }
+ }
+
+ goto done;
+ usage:
+ printf ("Usage:\n%s\n", cmdtp->help);
+
+ done:
+ return ret_val;
+
+}
+
+U_BOOT_CMD(
+ eeprom, 4, 0, do_eeprom,
+ "eeprom - read/write/copy to/from the PowerSpan II eeprom\n",
+ "eeprom r OFF [NUM]\n"
+ " - read NUM words starting at OFF\n"
+ "eeprom w OFF VAL\n"
+ " - write word VAL at offset OFF\n"
+ "eeprom g ADD\n"
+ " - store contents of eeprom at address ADD\n"
+ "eeprom p ADD\n"
+ " - put data stored at address ADD into the eeprom\n"
+ "eeprom d\n"
+ " - return eeprom to default contents\n"
+);
+
+unsigned int PowerSpanRead(unsigned int theOffset){
+ volatile unsigned int* ptr = (volatile unsigned int*)(PSPAN_BASEADDR + theOffset);
+ unsigned int ret_val;
+
+#ifdef VERBOSITY
+ if(gVerbosityLevel > 1){
+ printf("PowerSpanRead: offset=%08x ", theOffset);
+ }
+#endif
+ ret_val = *ptr;
+ PSII_SYNC();
+
+#ifdef VERBOSITY
+ if(gVerbosityLevel > 1){
+ printf("value=%08x\n", ret_val);
+ }
+#endif
+
+ return ret_val;
+}
+
+void PowerSpanWrite(unsigned int theOffset, unsigned int theValue){
+ volatile unsigned int* ptr = (volatile unsigned int*)(PSPAN_BASEADDR + theOffset);
+#ifdef VERBOSITY
+ if(gVerbosityLevel > 1){
+ printf("PowerSpanWrite: offset=%08x val=%02x\n", theOffset, theValue);
+ }
+#endif
+ *ptr = theValue;
+ PSII_SYNC();
+}
+
+/**
+ * Sets the indicated bits in the indicated register.
+ * @param theOffset [IN] the register to access.
+ * @param theMask [IN] bits set in theMask will be set in the register.
+ */
+void PowerSpanSetBits(unsigned int theOffset, unsigned int theMask){
+ volatile unsigned int* ptr = (volatile unsigned int*)(PSPAN_BASEADDR + theOffset);
+ unsigned int register_value;
+
+#ifdef VERBOSITY
+ if(gVerbosityLevel > 1){
+ printf("PowerSpanSetBits: offset=%08x mask=%02x\n", theOffset, theMask);
+ }
+#endif
+ register_value = *ptr;
+ PSII_SYNC();
+
+ register_value |= theMask;
+ *ptr = register_value;
+ PSII_SYNC();
+}
+
+/**
+ * Clears the indicated bits in the indicated register.
+ * @param theOffset [IN] the register to access.
+ * @param theMask [IN] bits set in theMask will be cleared in the register.
+ */
+void PowerSpanClearBits(unsigned int theOffset, unsigned int theMask){
+ volatile unsigned int* ptr = (volatile unsigned int*)(PSPAN_BASEADDR + theOffset);
+ unsigned int register_value;
+
+#ifdef VERBOSITY
+ if(gVerbosityLevel > 1){
+ printf("PowerSpanClearBits: offset=%08x mask=%02x\n", theOffset, theMask);
+ }
+#endif
+ register_value = *ptr;
+ PSII_SYNC();
+
+ register_value &= ~theMask;
+ *ptr = register_value;
+ PSII_SYNC();
+}
+
+/**
+ * Configures a slave image on the local bus, based on the parameters and some hardcoded system values.
+ * Slave Images are images that cause the PowerSpan II to be a master on the PCI bus. Thus, they
+ * are outgoing from the standpoint of the local bus.
+ * @param theImageIndex [IN] the PowerSpan II image to set (assumed to be 0-7).
+ * @param theBlockSize [IN] the block size of the image (as used by PowerSpan II: PB_SIx_CTL[BS]).
+ * @param theMemIOFlag [IN] if PX_TGT_USE_MEM_IO, this image will have the MEM_IO bit set.
+ * @param theEndianness [IN] the endian bits for the image (already shifted, use defines).
+ * @param theLocalBaseAddr [IN] the Local address for the image (assumed to be valid with provided block size).
+ * @param thePCIBaseAddr [IN] the PCI address for the image (assumed to be valid with provided block size).
+ */
+int SetSlaveImage(int theImageIndex, unsigned int theBlockSize, int theMemIOFlag, int theEndianness, unsigned int theLocalBaseAddr, unsigned int thePCIBaseAddr){
+ unsigned int reg_offset = theImageIndex * PB_SLAVE_IMAGE_OFF;
+ unsigned int reg_value = 0;
+
+ /* Make sure that the Slave Image is disabled */
+ PowerSpanClearBits((REGS_PB_SLAVE_CSR + reg_offset), PB_SLAVE_CSR_IMG_EN);
+
+ /* Setup the mask required for requested PB Slave Image configuration */
+ reg_value = PB_SLAVE_CSR_TA_EN | theEndianness | (theBlockSize << 24);
+ if(theMemIOFlag == PB_SLAVE_USE_MEM_IO){
+ reg_value |= PB_SLAVE_CSR_MEM_IO;
+ }
+
+ /* hardcoding the following:
+ TA_EN = 1
+ MD_EN = 0
+ MODE = 0
+ PRKEEP = 0
+ RD_AMT = 0
+ */
+ PowerSpanWrite((REGS_PB_SLAVE_CSR + reg_offset), reg_value);
+
+ /* these values are not checked by software */
+ PowerSpanWrite((REGS_PB_SLAVE_BADDR + reg_offset), theLocalBaseAddr);
+ PowerSpanWrite((REGS_PB_SLAVE_TADDR + reg_offset), thePCIBaseAddr);
+
+ /* Enable the Slave Image */
+ PowerSpanSetBits((REGS_PB_SLAVE_CSR + reg_offset), PB_SLAVE_CSR_IMG_EN);
+
+ return 0;
+}
+
+/**
+ * Configures a target image on the local bus, based on the parameters and some hardcoded system values.
+ * Target Images are used when the PowerSpan II is acting as a target for an access. Thus, they
+ * are incoming from the standpoint of the local bus.
+ * In order to behave better on the host PCI bus, if thePCIBaseAddr is NULL (0x00000000), then the PCI
+ * base address will not be updated; makes sense given that the hosts own memory should be mapped to
+ * PCI address 0x00000000.
+ * @param theImageIndex [IN] the PowerSpan II image to set.
+ * @param theBlockSize [IN] the block size of the image (as used by PowerSpan II: Px_TIx_CTL[BS]).
+ * @param theMemIOFlag [IN] if PX_TGT_USE_MEM_IO, this image will have the MEM_IO bit set.
+ * @param theEndianness [IN] the endian bits for the image (already shifted, use defines).
+ * @param theLocalBaseAddr [IN] the Local address for the image (assumed to be valid with provided block size).
+ * @param thePCIBaseAddr [IN] the PCI address for the image (assumed to be valid with provided block size).
+ */
+int SetTargetImage(int theImageIndex, unsigned int theBlockSize, int theMemIOFlag, int theEndianness, unsigned int theLocalBaseAddr, unsigned int thePCIBaseAddr){
+ unsigned int csr_reg_offset = theImageIndex * P1_TGT_IMAGE_OFF;
+ unsigned int pci_reg_offset = theImageIndex * P1_BST_OFF;
+ unsigned int reg_value = 0;
+
+ /* Make sure that the Slave Image is disabled */
+ PowerSpanClearBits((REGS_P1_TGT_CSR + csr_reg_offset), PB_SLAVE_CSR_IMG_EN);
+
+ /* Setup the mask required for requested PB Slave Image configuration */
+ reg_value = PX_TGT_CSR_TA_EN | PX_TGT_CSR_BAR_EN | (theBlockSize << 24) | PX_TGT_CSR_RTT_READ | PX_TGT_CSR_WTT_WFLUSH | theEndianness;
+ if(theMemIOFlag == PX_TGT_USE_MEM_IO){
+ reg_value |= PX_TGT_MEM_IO;
+ }
+
+ /* hardcoding the following:
+ TA_EN = 1
+ BAR_EN = 1
+ MD_EN = 0
+ MODE = 0
+ DEST = 0
+ RTT = 01010
+ GBL = 0
+ CI = 0
+ WTT = 00010
+ PRKEEP = 0
+ MRA = 0
+ RD_AMT = 0
+ */
+ PowerSpanWrite((REGS_P1_TGT_CSR + csr_reg_offset), reg_value);
+
+ PowerSpanWrite((REGS_P1_TGT_TADDR + csr_reg_offset), theLocalBaseAddr);
+
+ if(thePCIBaseAddr != (unsigned int)NULL){
+ PowerSpanWrite((REGS_P1_BST + pci_reg_offset), thePCIBaseAddr);
+ }
+
+ /* Enable the Slave Image */
+ PowerSpanSetBits((REGS_P1_TGT_CSR + csr_reg_offset), PB_SLAVE_CSR_IMG_EN);
+
+ return 0;
+}
+
+int do_bridge(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]){
+ char cmd;
+ int ret_val = 1;
+ unsigned int image_index;
+ unsigned int block_size;
+ unsigned int mem_io;
+ unsigned int local_addr;
+ unsigned int pci_addr;
+ int endianness;
+
+ if(argc != 8){
+ goto usage;
+ }
+
+ cmd = argv[1][0];
+ image_index = simple_strtoul(argv[2], NULL, 16);
+ block_size = simple_strtoul(argv[3], NULL, 16);
+ mem_io = simple_strtoul(argv[4], NULL, 16);
+ endianness = argv[5][0];
+ local_addr = simple_strtoul(argv[6], NULL, 16);
+ pci_addr = simple_strtoul(argv[7], NULL, 16);
+
+
+ switch (cmd){
+ case 'i':{
+ if(tolower(endianness) == 'b'){
+ endianness = PX_TGT_CSR_BIG_END;
+ }
+ else if(tolower(endianness) == 'l'){
+ endianness = PX_TGT_CSR_TRUE_LEND;
+ }
+ else{
+ goto usage;
+ }
+ SetTargetImage(image_index, block_size, mem_io, endianness, local_addr, pci_addr);
+ break;
+ }
+ case 'o':{
+ if(tolower(endianness) == 'b'){
+ endianness = PB_SLAVE_CSR_BIG_END;
+ }
+ else if(tolower(endianness) == 'l'){
+ endianness = PB_SLAVE_CSR_TRUE_LEND;
+ }
+ else{
+ goto usage;
+ }
+ SetSlaveImage(image_index, block_size, mem_io, endianness, local_addr, pci_addr);
+ break;
+ }
+ default:{
+ goto usage;
+ }
+ }
+
+ goto done;
+ usage:
+ printf ("Usage:\n%s\n", cmdtp->help);
+
+ done:
+ return ret_val;
+
+}
+
+
+