int at91_board_act8865_set_reg_voltage(void)
{
unsigned char reg, value;
int ret;
/* Check ACT8865 I2C interface */
if (act8865_check_i2c_disabled())
return 0;
/* Enable REG2 output 1.25V */
reg = REG2_0;
value = ACT8865_1V25;
ret = act8865_set_reg_voltage(reg, value);
if (ret) {
dbg_loud("ACT8865: Failed to make REG2 output 1250mV\n");
return -1;
}
/* Enable REG4(VDDANA) output 3.3V */
reg = REG4_0;
value = ACT8865_3V3;
ret = act8865_set_reg_voltage(reg, value);
if (ret) {
dbg_loud("ACT8865: Failed to make REG4 output 3300mV\n");
return -1;
}
return 0;
}
int at91_board_act8865_set_reg_voltage(void)
{
unsigned char reg, value;
int ret;
/* Check ACT8865 I2C interface */
if (act8865_check_i2c_disabled())
return 0;
/* Enable REG2 output 1.2V */
reg = REG2_1;
value = ACT8865_1V2;
ret = act8865_set_reg_voltage(reg, value);
if (ret) {
dbg_loud("ACT8865: Failed to make REG2 output 1200mV\n");
return -1;
}
/* Enable REG4 output 2.5V */
reg = REG4_0;
value = ACT8865_2V5;
ret = act8865_set_reg_voltage(reg, value);
if (ret) {
dbg_loud("ACT8865: Failed to make REG4 output 2500mV\n");
return -1;
}
/* Enable REG5 output 3.3V */
reg = REG5_0;
value = ACT8865_3V3;
ret = act8865_set_reg_voltage(reg, value);
if (ret) {
dbg_loud("ACT8865: Failed to make REG5 output 3300mV\n");
return -1;
}
/* Enable REG6 output 2.5V */
reg = REG6_0;
value = ACT8865_2V5;
ret = act8865_set_reg_voltage(reg, value);
if (ret) {
dbg_loud("ACT8865: Failed to make REG6 output 2500mV\n");
return -1;
}
/* Enable REG7 output 1.8V */
reg = REG7_0;
value = ACT8865_1V8;
ret = act8865_set_reg_voltage(reg, value);
if (ret) {
dbg_loud("ACT8865: Failed to make REG7 output 1800mV\n");
return -1;
}
return 0;
}
static int act8865_workaround_disable_i2c(void)
{
unsigned char value;
unsigned char i;
/* Check ACT8865 I2C interface */
if (act8865_check_i2c_disabled())
return 0;
/* Disable ACT8865 I2C interface */
for (i = 0; i < ARRAY_SIZE(version_array); i++) {
value = version_array[i].set_value;
act8865_disable_i2c_sequence(value);
if (act8865_check_i2c_disabled())
break;
}
if (i >= ARRAY_SIZE(version_array)) {
dbg_loud("ACT8865: Failed to disable I2C interface\n");
return -1;
}
dbg_info("ACT8865: Disable ACT8865's I2C interface\n");
return 0;
}
int load_ek_at24xx(unsigned char *buff, unsigned int length)
{
unsigned char dev_addr = EK_AT24XX_ADDR;
unsigned char offset = EK_INFO_OFFSET;
int ret = 0;
unsigned int i;
unsigned char *tmp = buff;
ret = at24_read(dev_addr, offset, buff, length);
dbg_loud("EEPROM Buff:\n");
for (i = 0; i < length; i++)
dbg_loud("%d ", *tmp++);
dbg_loud("\n");
return ret;
}
static int phys_enter_power_down(void)
{
struct mii_bus macb_mii_bus;
#if defined(CONFIG_MAC0_PHY)
gmac0_hw_init();
macb_mii_bus.name = "GMAC0 KSZ8081RNB";
macb_mii_bus.reg_base = (void *)AT91C_BASE_GMAC;
macb_mii_bus.phy_addr = 1;
pmc_enable_periph_clock(AT91C_ID_GMAC);
if (phy_power_down_mode(&macb_mii_bus)) {
dbg_loud("%s: Failed to enter power down mode\n",
macb_mii_bus.name);
}
pmc_disable_periph_clock(AT91C_ID_GMAC);
#endif
#if defined(CONFIG_MAC1_PHY)
gmac1_hw_init();
macb_mii_bus.name = "GMAC1 KSZ8081RNB";
macb_mii_bus.reg_base = (void *)AT91C_BASE_GMAC1;
macb_mii_bus.phy_addr = 1;
pmc_enable_periph_clock(AT91C_ID_GMAC1);
if (phy_power_down_mode(&macb_mii_bus)) {
dbg_loud("%s: Failed to enter power down mode\n",
macb_mii_bus.name);
}
pmc_disable_periph_clock(AT91C_ID_GMAC1);
#endif
return 0;
}
static int at24_read(unsigned char device_addr, unsigned char internal_addr,
unsigned char *buff, unsigned int length)
{
unsigned char iaddr_size = 1;
unsigned int bus;
int ret = 0;
bus = at24_get_twi_bus();
ret = twi_read(bus, device_addr, internal_addr, iaddr_size, buff, length);
if (ret)
dbg_loud("EEPROM: Failed to read\n");
return ret;
}
static int SiI9022_write(unsigned char reg_addr, unsigned char data)
{
unsigned int bus;
int ret;
bus = SiI9022_get_twi_bus();
ret = twi_write(bus, SiI9022_ADDR, reg_addr, 1, &data, 1);
if (ret) {
dbg_loud("SiI9022: Failed to write on TWI bus: %d\n", bus);
return -1;
}
return 0;
}
void redirect_interrupts_to_nsaic(void)
{
unsigned int key32;
if (!(readl(SFR_AICREDIR + AT91C_BASE_SFR) & 0x01)) {
key32 = readl(SFR_SN1 + AT91C_BASE_SFR) ^ AICREDIR_KEY;
writel(((key32 & ~0x01) | 0x1), SFR_AICREDIR + AT91C_BASE_SFR);
/* bits[31:1] = key */
/* bit[0] = 1 => all interrupts redirected to AIC */
/* bit[0] = 0 => secure interrupts directed to SAIC,
others to AIC (default) */
if ((readl(SFR_AICREDIR + AT91C_BASE_SFR) & 0x01))
dbg_loud("All interrupts redirected to AIC\n");
}
}
static int SiI9022_read(unsigned char reg_addr, unsigned char *data)
{
unsigned int bus;
int ret;
bus = SiI9022_get_twi_bus();
ret = twi_read(bus, SiI9022_ADDR,
reg_addr, 1, (unsigned char *)data, 1);
if (ret) {
dbg_loud("SiI9022: Failed to read on TWI bus: %d\n", bus);
return -1;
}
return 0;
}
static int load_1wire_info(unsigned char *buff, unsigned int size,
unsigned int *psn, unsigned int *prev)
{
board_info_t board_info;
board_info_t *bd_info = &board_info;
unsigned int count;
unsigned int parsing = 0;
int i;
memset(bd_info, 0, sizeof(*bd_info));
dbg_info("1-Wire: Loading 1-Wire information ...\n");
count = enumerate_all_rom();
if (!count) {
dbg_info("WARNING: 1-Wire: No 1-Wire chip found\n");
return -1;
}
dbg_info("1-Wire: BoardName | [Revid] | VendorName\n");
for (i = 0; i < count; i++) {
if (ds24xx_read_memory(i, 0, 0, size, buff) < 0) {
dbg_info("WARNING: 1-Wire: Failed to read from 1-Wire chip!\n");
return -1;
}
dbg_loud("board: #%d: ", i);
#if (BOOTSTRAP_DEBUG_LEVEL >= DEBUG_LOUD)
dbg_hexdump(buff, size, DUMP_WIDTH_BIT_8);
#endif
if (get_board_hw_info(buff, i, bd_info))
continue;
if (construct_sn_rev(bd_info, psn, prev))
continue;
parsing++;
}
if (!parsing)
return -1;
return 0;
}
int act8865_set_power_saving_mode(void)
{
unsigned char mode = ACT8865_MODE_POWER_SAVING;
unsigned char reg_list[] = {REG1_2, REG2_2, REG3_2};
unsigned char reg;
unsigned i;
int ret;
if (act8865_check_i2c_disabled())
return 0;
for (i = 0; i < ARRAY_SIZE(reg_list); i++) {
reg = reg_list[i];
ret = act8865_set_reg_mode(reg, mode);
if (ret)
dbg_loud("ACT8865: Failed to set Power-saving mode\n");
}
dbg_info("ACT8865: Set REG1/REG2/REG3 Power-saving mode\n");
return 0;
}
/*******************************************************************************
* SN layout
*
* 31 30 25 20 15 10 5 0
* -----------------------------------------------------------------------
* | | Vendor ID| Board ID | Vendor ID| Board ID | Vendor ID| Board ID |
* -----------------------------------------------------------------------
* | EK | DM | CPU |
*
* Rev layout
*
* 31 24 21 18 15 10 5 0
* -----------------------------------------------------------------------
* | | EK | DM | CPU | EK | DM | CPU |
* -----------------------------------------------------------------------
* | Revision id | Revision Code |
*
*******************************************************************************
*/
void load_1wire_info(void)
{
int i, j;
unsigned int cnt;
unsigned int size = LEN_ONE_WIRE_INFO;
struct board_info board_info;
struct board_info *bd_info;
#if defined(CONFIG_SAMA5D4EK)
int missing = BOARD_TYPE_EK_MASK | BOARD_TYPE_DM_MASK;
#else
int missing = BOARD_TYPE_MASK;
#endif
unsigned char *tmp = buf;
memset(&board_info, 0, sizeof(board_info));
bd_info= &board_info;
dbg_info("1-Wire: Loading 1-Wire information ...\n");
sn = rev = 0;
cnt = enumerate_all_rom();
if (!cnt) {
dbg_info("WARNING: 1-Wire: No 1-Wire chip found\n ");
goto err;
}
dbg_info("1-Wire: BoardName | [Revid] | VendorName\n");
for (i = 0; i < cnt; i++) {
if (ds24xx_read_memory(i, 0, 0, size, buf) < 0) {
dbg_info("WARNING: 1-Wire: Failed to read from 1-Wire chip!\n");
goto err;
}
dbg_loud("board: #%d: ", i);
for (j = 0; j < size; j++)
dbg_loud("%d ", *tmp++);
dbg_loud("\n");
if (get_board_info(buf, i, bd_info)) {
continue;
}
switch (bd_info->board_type) {
case BOARD_TYPE_CPU:
missing &= (BOARD_TYPE_MASK & ~BOARD_TYPE_CPU_MASK);
sn |= (bd_info->board_id & SN_MASK);
sn |= ((bd_info->vendor_id & VENDOR_MASK)
<< CM_VENDOR_OFFSET);
rev |= ((bd_info->revision_code - 'A') & REV_MASK);
rev |= (((bd_info->revision_id - '0') & REV_ID_MASK)
<< CM_REV_ID_OFFSET);
break;
case BOARD_TYPE_DM:
missing &= (BOARD_TYPE_MASK & ~BOARD_TYPE_DM_MASK);
sn |= ((bd_info->board_id & SN_MASK) << DM_SN_OFFSET);
sn |= ((bd_info->vendor_id & VENDOR_MASK)
<< DM_VENDOR_OFFSET);
rev |= (((bd_info->revision_code - 'A') & REV_MASK)
<< DM_REV_OFFSET);
rev |= (((bd_info->revision_id - '0') & REV_ID_MASK)
<< DM_REV_ID_OFFSET);
break;
case BOARD_TYPE_EK:
missing &= (BOARD_TYPE_MASK & ~BOARD_TYPE_EK_MASK);
sn |= ((bd_info->board_id & SN_MASK) << EK_SN_OFFSET);
sn |= ((bd_info->vendor_id & VENDOR_MASK)
<< EK_VENDOR_OFFSET);
rev |= (((bd_info->revision_code - 'A') & REV_MASK)
<< EK_REV_OFFSET);
rev |= (((bd_info->revision_id - '0') & REV_ID_MASK)
<< EK_REV_ID_OFFSET);
break;
default:
dbg_info("WARNING: 1-Wire: Unknown board type\n");
goto err;
}
}
if (missing & BOARD_TYPE_CPU_MASK)
dbg_info("1-Wire: Failed to read CM board information\n");
if (missing & BOARD_TYPE_DM_MASK)
dbg_info("1-Wire: Failed to read DM board information\n");
if (missing & BOARD_TYPE_EK_MASK)
dbg_info("1-Wire: Failed to read EK board information\n");
goto save_info;
err:
dbg_info("\n1-Wire: Using defalt information\n");
sn = set_default_sn();
rev = set_default_rev();
save_info:
#ifdef AT91C_BASE_GPBR
/* save to GPBR #2 and #3 */
dbg_info("\n1-Wire: SYS_GPBR2: %d, SYS_GPBR3: %d\n\n", sn, rev);
writel(sn, AT91C_BASE_GPBR + 4 * 2);
writel(rev, AT91C_BASE_GPBR + 4 * 3);
#else
dbg_info("\n1-Wire: Board sn: %d, revsion: %d\n\n", sn, rev);
#endif
return;
}
static int get_board_info(unsigned char *buffer,
unsigned char bd_sn,
struct board_info *bd_info)
{
int i;
char tmp[20];
struct one_wire_info one_wire;
struct one_wire_info *p = &one_wire;
unsigned char *pbuf = buffer;
char *boardname;
char *vendorname;
p->total_bytes = (unsigned char)*pbuf;
pbuf = buffer + 1;
for (i = 0; i < VENDOR_NAME_LEN; i++)
p->vendor_name[i] = *pbuf++;
pbuf = buffer + 11;
for (i = 0; i < VENDOR_COUNTRY_LEN; i++)
p->vendor_country[i] = *pbuf++;
pbuf = buffer + 13;
for (i = 0; i < BOARD_NAME_LEN; i++)
p->board_name[i] = *pbuf++;
p->year = *pbuf++;
p->week = *pbuf++;
p->revision_code = *pbuf++;
p->revision_id = *pbuf++;
p->bom_revision = *pbuf++;
p->revision_mapping = *pbuf++;
memset(tmp, 0, sizeof(tmp));
for (i = 0; i < BOARD_NAME_LEN; i++) {
if (p->board_name[i] == 0x20)
break;
tmp[i] = p->board_name[i];
}
for (i = 0; i < ARRAY_SIZE(board_list); i++) {
if (strncmp(board_list[i].board_name, tmp,
strlen(board_list[i].board_name)) == 0) {
bd_info->board_type = board_list[i].board_type;
bd_info->board_id = board_list[i].board_id;
bd_info->revision_code
= normalize_rev_code(p->revision_code);
if (p->revision_mapping == 'B') {
bd_info->revision_id
= normalize_rev_id_map_b(p->revision_id);
bd_info->bom_revision
= normalize_bom_revision(p->bom_revision);
} else {
bd_info->revision_id
= normalize_rev_id(p->revision_id);
}
break;
}
}
if (i == ARRAY_SIZE(board_list)) {
return -1;
}
boardname = board_list[i].board_name;
dbg_loud("board: #%d: boardname: %s\n", bd_sn, boardname);
memset(tmp, 0, sizeof(tmp));
for (i = 0; i < VENDOR_NAME_LEN; i++) {
if (p->vendor_name[i] == 0x20)
break;
tmp[i] = p->vendor_name[i];
}
for (i = 0; i < ARRAY_SIZE(vendor_list); i++) {
if (strncmp(vendor_list[i].vendor_name, tmp,
strlen(vendor_list[i].vendor_name)) == 0) {
bd_info->vendor_id = vendor_list[i].vendor_id;
break;
}
}
if (i == ARRAY_SIZE(vendor_list)) {
return -1;
}
vendorname = vendor_list[i].vendor_name;
dbg_loud("board: #%d: vendorname: %s\n", bd_sn, vendorname);
dbg_info(" #%d", bd_sn);
if (p->revision_mapping == 'B') {
dbg_info(" %s [%c%c%c] %s\n",
boardname,
bd_info->revision_code,
bd_info->revision_id,
bd_info->bom_revision,
vendorname);
} else {
dbg_info(" %s [%c%c] %s\n",
boardname,
bd_info->revision_code,
bd_info->revision_id,
vendorname);
}
return 0;
}
int SiI9022_enter_power_state_D3_Cold(void)
{
unsigned char power_state = 0;
unsigned char device_id = 0;
unsigned int timeout = 10;
int ret;
/*
* D3 cold Note:It is necessary to unplug the HDMI connector,
* otherwise would not go to D3 cold.
*/
/* 1. Clear any pending interrupts via TPI 0x3D */
ret = SiI9022_write(TPI_INTERRUPT_STATUS_REG, 0xFF);
if (ret) {
dbg_loud("SiI9022: Failed to clear any pending interrupts\n");
return -1;
}
/* 2. Reset SiI9022A Tx via HW */
ret = SiI9022_TxHW_Reset();
if (ret) {
dbg_loud("SiI9022: Failed to reset\n");
return -1;
}
do {
/* 3. Write device register 0xC7 = 0x00 to enter TPI mode */
ret = SiI9022_write(TPI_ENABLE, 0x00);
if (ret)
dbg_loud("SiI9022: Failed to enter TPI mode\n");
mdelay(100);
power_state = TX_POWER_STATE_D0;
ret = SiI9022_write(TPI_DEVICE_POWER_STATE_CTRL_REG,
power_state);
if (ret) {
dbg_loud("SiI9022: Failed to write TPI 0x1E\n");
return -1;
}
ret = SiI9022_read(TPI_DEVICE_ID, &device_id);
if (ret)
dbg_loud("SiI9022: Failed to 0x1b\n");
} while ((--timeout) && (device_id == 0x0));
if (device_id != SiI9022_DEVICE_ID) {
dbg_loud("SiI9022: Not found\n");
return -1;
}
/* 4. Set INT# source to Hotplug via TPI 0x3C[0] = 1b */
ret = SiI9022_write(TPI_INTERRUPT_ENABLE_REG, HOT_PLUG_EVENT | 0x08);
if (ret) {
dbg_loud("SiI9022: Failed to Set INT# source to Hotplug\n");
return -1;
}
/* 5. Clear any pending interrupts via TPI 0x3D*/
ret = SiI9022_write(TPI_INTERRUPT_STATUS_REG, 0xFF);
if (ret) {
dbg_loud("SiI9022: Failed to clear any pending interrupts\n");
return -1;
}
/* 6. Enter D3 Cold mode via TPI 0x1E[1:0] = 11b */
power_state = 0x04;
ret = SiI9022_write(TPI_DEVICE_POWER_STATE_CTRL_REG, power_state);
if (ret) {
dbg_loud("SiI9022: Failed to write TPI 0x1E\n");
return -1;
}
power_state &= ~TX_POWER_STATE_MASK;
power_state |= TX_POWER_STATE_D3;
ret = SiI9022_write(TPI_DEVICE_POWER_STATE_CTRL_REG, power_state);
if (ret) {
dbg_loud("SiI9022: Failed to write TPI 0x1E\n");
return -1;
}
dbg_info("HDMI SiI9022: Enter D3 Cold mode\n");
return 0;
}