[PATCH 1/7] board: gateworks: gw_ventana: convert to DM_I2C
Tim Harvey
tharvey at gateworks.com
Tue Mar 8 01:24:00 CET 2022
convert to DM_I2C for U-Boot while leaving SPL legacy I2C:
- Move I2C config from common to SPL
- Move PMIC config from common to SPL (no need to re-configure pmic)
- add DM_I2C support to eeprom/gsc functions shared by SPL and U-Boot
Signed-off-by: Tim Harvey <tharvey at gateworks.com>
---
board/gateworks/gw_ventana/common.c | 266 --------------------
board/gateworks/gw_ventana/common.h | 4 -
board/gateworks/gw_ventana/eeprom.c | 9 +
board/gateworks/gw_ventana/gsc.c | 60 ++++-
board/gateworks/gw_ventana/gsc.h | 1 +
board/gateworks/gw_ventana/gw_ventana.c | 17 +-
board/gateworks/gw_ventana/gw_ventana_spl.c | 266 ++++++++++++++++++++
configs/gwventana_emmc_defconfig | 2 +-
configs/gwventana_gw5904_defconfig | 2 +-
configs/gwventana_nand_defconfig | 2 +-
10 files changed, 334 insertions(+), 295 deletions(-)
diff --git a/board/gateworks/gw_ventana/common.c b/board/gateworks/gw_ventana/common.c
index 7ec931c8a831..2be6518b63e0 100644
--- a/board/gateworks/gw_ventana/common.c
+++ b/board/gateworks/gw_ventana/common.c
@@ -16,10 +16,6 @@
#include <fsl_esdhc_imx.h>
#include <hwconfig.h>
#include <linux/delay.h>
-#include <power/pmic.h>
-#include <power/ltc3676_pmic.h>
-#include <power/pfuze100_pmic.h>
-#include <power/mp5416.h>
#include "common.h"
@@ -83,98 +79,6 @@ static iomux_v3_cfg_t const usdhc3_pads[] = {
IOMUX_PADS(PAD_SD3_DAT5__GPIO7_IO00 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
};
-/*
- * I2C pad configs:
- * I2C1: GSC
- * I2C2: PMIC,PCIe Switch,Clock,Mezz
- * I2C3: Multimedia/Expansion
- */
-static struct i2c_pads_info mx6q_i2c_pad_info[] = {
- {
- .scl = {
- .i2c_mode = MX6Q_PAD_EIM_D21__I2C1_SCL | PC,
- .gpio_mode = MX6Q_PAD_EIM_D21__GPIO3_IO21 | PC,
- .gp = IMX_GPIO_NR(3, 21)
- },
- .sda = {
- .i2c_mode = MX6Q_PAD_EIM_D28__I2C1_SDA | PC,
- .gpio_mode = MX6Q_PAD_EIM_D28__GPIO3_IO28 | PC,
- .gp = IMX_GPIO_NR(3, 28)
- }
- }, {
- .scl = {
- .i2c_mode = MX6Q_PAD_KEY_COL3__I2C2_SCL | PC,
- .gpio_mode = MX6Q_PAD_KEY_COL3__GPIO4_IO12 | PC,
- .gp = IMX_GPIO_NR(4, 12)
- },
- .sda = {
- .i2c_mode = MX6Q_PAD_KEY_ROW3__I2C2_SDA | PC,
- .gpio_mode = MX6Q_PAD_KEY_ROW3__GPIO4_IO13 | PC,
- .gp = IMX_GPIO_NR(4, 13)
- }
- }, {
- .scl = {
- .i2c_mode = MX6Q_PAD_GPIO_3__I2C3_SCL | PC,
- .gpio_mode = MX6Q_PAD_GPIO_3__GPIO1_IO03 | PC,
- .gp = IMX_GPIO_NR(1, 3)
- },
- .sda = {
- .i2c_mode = MX6Q_PAD_GPIO_6__I2C3_SDA | PC,
- .gpio_mode = MX6Q_PAD_GPIO_6__GPIO1_IO06 | PC,
- .gp = IMX_GPIO_NR(1, 6)
- }
- }
-};
-
-static struct i2c_pads_info mx6dl_i2c_pad_info[] = {
- {
- .scl = {
- .i2c_mode = MX6DL_PAD_EIM_D21__I2C1_SCL | PC,
- .gpio_mode = MX6DL_PAD_EIM_D21__GPIO3_IO21 | PC,
- .gp = IMX_GPIO_NR(3, 21)
- },
- .sda = {
- .i2c_mode = MX6DL_PAD_EIM_D28__I2C1_SDA | PC,
- .gpio_mode = MX6DL_PAD_EIM_D28__GPIO3_IO28 | PC,
- .gp = IMX_GPIO_NR(3, 28)
- }
- }, {
- .scl = {
- .i2c_mode = MX6DL_PAD_KEY_COL3__I2C2_SCL | PC,
- .gpio_mode = MX6DL_PAD_KEY_COL3__GPIO4_IO12 | PC,
- .gp = IMX_GPIO_NR(4, 12)
- },
- .sda = {
- .i2c_mode = MX6DL_PAD_KEY_ROW3__I2C2_SDA | PC,
- .gpio_mode = MX6DL_PAD_KEY_ROW3__GPIO4_IO13 | PC,
- .gp = IMX_GPIO_NR(4, 13)
- }
- }, {
- .scl = {
- .i2c_mode = MX6DL_PAD_GPIO_3__I2C3_SCL | PC,
- .gpio_mode = MX6DL_PAD_GPIO_3__GPIO1_IO03 | PC,
- .gp = IMX_GPIO_NR(1, 3)
- },
- .sda = {
- .i2c_mode = MX6DL_PAD_GPIO_6__I2C3_SDA | PC,
- .gpio_mode = MX6DL_PAD_GPIO_6__GPIO1_IO06 | PC,
- .gp = IMX_GPIO_NR(1, 6)
- }
- }
-};
-
-void setup_ventana_i2c(int i2c)
-{
- struct i2c_pads_info *p;
-
- if (is_cpu_type(MXC_CPU_MX6Q))
- p = &mx6q_i2c_pad_info[i2c];
- else
- p = &mx6dl_i2c_pad_info[i2c];
-
- setup_i2c(i2c, CONFIG_SYS_I2C_SPEED, 0x7f, p);
-}
-
/*
* Baseboard specific GPIO
*/
@@ -1402,176 +1306,6 @@ void setup_board_gpio(int board, struct ventana_board_info *info)
}
}
-/* setup board specific PMIC */
-void setup_pmic(void)
-{
- struct pmic *p;
- struct ventana_board_info ventana_info;
- int board = read_eeprom(CONFIG_I2C_GSC, &ventana_info);
- const int i2c_pmic = 1;
- u32 reg;
- char rev;
- int i;
-
- /* determine board revision */
- rev = 'A';
- for (i = sizeof(ventana_info.model) - 1; i > 0; i--) {
- if (ventana_info.model[i] >= 'A') {
- rev = ventana_info.model[i];
- break;
- }
- }
-
- i2c_set_bus_num(i2c_pmic);
-
- /* configure PFUZE100 PMIC */
- if (!i2c_probe(CONFIG_POWER_PFUZE100_I2C_ADDR)) {
- debug("probed PFUZE100 at 0x%x\n", CONFIG_POWER_PFUZE100_I2C_ADDR);
- power_pfuze100_init(i2c_pmic);
- p = pmic_get("PFUZE100");
- if (p && !pmic_probe(p)) {
- pmic_reg_read(p, PFUZE100_DEVICEID, ®);
- printf("PMIC: PFUZE100 ID=0x%02x\n", reg);
-
- /* Set VGEN1 to 1.5V and enable */
- pmic_reg_read(p, PFUZE100_VGEN1VOL, ®);
- reg &= ~(LDO_VOL_MASK);
- reg |= (LDOA_1_50V | LDO_EN);
- pmic_reg_write(p, PFUZE100_VGEN1VOL, reg);
-
- /* Set SWBST to 5.0V and enable */
- pmic_reg_read(p, PFUZE100_SWBSTCON1, ®);
- reg &= ~(SWBST_MODE_MASK | SWBST_VOL_MASK);
- reg |= (SWBST_5_00V | (SWBST_MODE_AUTO << SWBST_MODE_SHIFT));
- pmic_reg_write(p, PFUZE100_SWBSTCON1, reg);
-
- if (board == GW54xx && (rev == 'G')) {
- /* Disable VGEN5 */
- pmic_reg_write(p, PFUZE100_VGEN5VOL, 0);
-
- /* Set VGEN6 to 2.5V and enable */
- pmic_reg_read(p, PFUZE100_VGEN6VOL, ®);
- reg &= ~(LDO_VOL_MASK);
- reg |= (LDOB_2_50V | LDO_EN);
- pmic_reg_write(p, PFUZE100_VGEN6VOL, reg);
- }
- }
-
- /* put all switchers in continuous mode */
- pmic_reg_read(p, PFUZE100_SW1ABMODE, ®);
- reg &= ~(SW_MODE_MASK);
- reg |= PWM_PWM;
- pmic_reg_write(p, PFUZE100_SW1ABMODE, reg);
-
- pmic_reg_read(p, PFUZE100_SW2MODE, ®);
- reg &= ~(SW_MODE_MASK);
- reg |= PWM_PWM;
- pmic_reg_write(p, PFUZE100_SW2MODE, reg);
-
- pmic_reg_read(p, PFUZE100_SW3AMODE, ®);
- reg &= ~(SW_MODE_MASK);
- reg |= PWM_PWM;
- pmic_reg_write(p, PFUZE100_SW3AMODE, reg);
-
- pmic_reg_read(p, PFUZE100_SW3BMODE, ®);
- reg &= ~(SW_MODE_MASK);
- reg |= PWM_PWM;
- pmic_reg_write(p, PFUZE100_SW3BMODE, reg);
-
- pmic_reg_read(p, PFUZE100_SW4MODE, ®);
- reg &= ~(SW_MODE_MASK);
- reg |= PWM_PWM;
- pmic_reg_write(p, PFUZE100_SW4MODE, reg);
- }
-
- /* configure LTC3676 PMIC */
- else if (!i2c_probe(CONFIG_POWER_LTC3676_I2C_ADDR)) {
- debug("probed LTC3676 at 0x%x\n", CONFIG_POWER_LTC3676_I2C_ADDR);
- power_ltc3676_init(i2c_pmic);
- p = pmic_get("LTC3676_PMIC");
- if (!p || pmic_probe(p))
- return;
- puts("PMIC: LTC3676\n");
- /*
- * set board-specific scalar for max CPU frequency
- * per CPU based on the LDO enabled Operating Ranges
- * defined in the respective IMX6DQ and IMX6SDL
- * datasheets. The voltage resulting from the R1/R2
- * feedback inputs on Ventana is 1308mV. Note that this
- * is a bit shy of the Vmin of 1350mV in the datasheet
- * for LDO enabled mode but is as high as we can go.
- */
- switch (board) {
- case GW560x:
- /* mask PGOOD during SW3 transition */
- pmic_reg_write(p, LTC3676_DVB3B,
- 0x1f | LTC3676_PGOOD_MASK);
- /* set SW3 (VDD_ARM) */
- pmic_reg_write(p, LTC3676_DVB3A, 0x1f);
- break;
- case GW5903:
- /* mask PGOOD during SW3 transition */
- pmic_reg_write(p, LTC3676_DVB3B,
- 0x1f | LTC3676_PGOOD_MASK);
- /* set SW3 (VDD_ARM) */
- pmic_reg_write(p, LTC3676_DVB3A, 0x1f);
-
- /* mask PGOOD during SW4 transition */
- pmic_reg_write(p, LTC3676_DVB4B,
- 0x1f | LTC3676_PGOOD_MASK);
- /* set SW4 (VDD_SOC) */
- pmic_reg_write(p, LTC3676_DVB4A, 0x1f);
- break;
- case GW5905:
- /* mask PGOOD during SW1 transition */
- pmic_reg_write(p, LTC3676_DVB1B,
- 0x1f | LTC3676_PGOOD_MASK);
- /* set SW1 (VDD_ARM) */
- pmic_reg_write(p, LTC3676_DVB1A, 0x1f);
-
- /* mask PGOOD during SW3 transition */
- pmic_reg_write(p, LTC3676_DVB3B,
- 0x1f | LTC3676_PGOOD_MASK);
- /* set SW3 (VDD_SOC) */
- pmic_reg_write(p, LTC3676_DVB3A, 0x1f);
- break;
- default:
- /* mask PGOOD during SW1 transition */
- pmic_reg_write(p, LTC3676_DVB1B,
- 0x1f | LTC3676_PGOOD_MASK);
- /* set SW1 (VDD_SOC) */
- pmic_reg_write(p, LTC3676_DVB1A, 0x1f);
-
- /* mask PGOOD during SW3 transition */
- pmic_reg_write(p, LTC3676_DVB3B,
- 0x1f | LTC3676_PGOOD_MASK);
- /* set SW3 (VDD_ARM) */
- pmic_reg_write(p, LTC3676_DVB3A, 0x1f);
- }
-
- /* put all switchers in continuous mode */
- pmic_reg_write(p, LTC3676_BUCK1, 0xc0);
- pmic_reg_write(p, LTC3676_BUCK2, 0xc0);
- pmic_reg_write(p, LTC3676_BUCK3, 0xc0);
- pmic_reg_write(p, LTC3676_BUCK4, 0xc0);
- }
-
- /* configure MP5416 PMIC */
- else if (!i2c_probe(0x69)) {
- puts("PMIC: MP5416\n");
- switch (board) {
- case GW5910:
- /* SW1: VDD_ARM 1.2V -> (1.275 to 1.475) */
- reg = MP5416_VSET_EN | MP5416_VSET_SW1_SVAL(1475000);
- i2c_write(0x69, MP5416_VSET_SW1, 1, (uint8_t *)®, 1);
- /* SW4: VDD_SOC 1.2V -> (1.350 to 1.475) */
- reg = MP5416_VSET_EN | MP5416_VSET_SW4_SVAL(1475000);
- i2c_write(0x69, MP5416_VSET_SW4, 1, (uint8_t *)®, 1);
- break;
- }
- }
-}
-
#include <fdt_support.h>
#define WDOG1_ADDR 0x20bc000
#define WDOG2_ADDR 0x20c0000
diff --git a/board/gateworks/gw_ventana/common.h b/board/gateworks/gw_ventana/common.h
index edfb065f6a70..526ff066b629 100644
--- a/board/gateworks/gw_ventana/common.h
+++ b/board/gateworks/gw_ventana/common.h
@@ -79,12 +79,8 @@ struct ventana {
extern struct ventana gpio_cfg[GW_UNKNOWN];
-/* configure i2c iomux */
-void setup_ventana_i2c(int);
/* configure uart iomux */
void setup_iomux_uart(void);
-/* conifgure PMIC */
-void setup_pmic(void);
/* configure gpio iomux/defaults */
void setup_iomux_gpio(int board, struct ventana_board_info *);
/* late setup of GPIO (configuration per baseboard and env) */
diff --git a/board/gateworks/gw_ventana/eeprom.c b/board/gateworks/gw_ventana/eeprom.c
index d21aa3c38ff2..c3a2bbe9ca48 100644
--- a/board/gateworks/gw_ventana/eeprom.c
+++ b/board/gateworks/gw_ventana/eeprom.c
@@ -13,6 +13,7 @@
#include <malloc.h>
#include <asm/bitops.h>
#include <linux/delay.h>
+#include <dm/uclass.h>
#include "gsc.h"
#include "ventana_eeprom.h"
@@ -34,12 +35,20 @@ read_eeprom(int bus, struct ventana_board_info *info)
* board may be ready to probe the GSC before its firmware is
* running. We will wait here indefinately for the GSC/EEPROM.
*/
+#if CONFIG_IS_ENABLED(DM_I2C)
+ while (1) {
+ if (i2c_get_dev(bus, GSC_EEPROM_ADDR))
+ break;
+ mdelay(1);
+ }
+#else
while (1) {
if (0 == i2c_set_bus_num(bus) &&
0 == i2c_probe(GSC_EEPROM_ADDR))
break;
mdelay(1);
}
+#endif
/* read eeprom config section */
mdelay(10);
diff --git a/board/gateworks/gw_ventana/gsc.c b/board/gateworks/gw_ventana/gsc.c
index 324e5dbed2c8..3c8707578c2f 100644
--- a/board/gateworks/gw_ventana/gsc.c
+++ b/board/gateworks/gw_ventana/gsc.c
@@ -16,12 +16,31 @@
#include <asm/arch/sys_proto.h>
#include <asm/global_data.h>
+#include <dm/device.h>
+#include <dm/uclass.h>
#include "ventana_eeprom.h"
#include "gsc.h"
DECLARE_GLOBAL_DATA_PTR;
+#if CONFIG_IS_ENABLED(DM_I2C)
+struct udevice *i2c_get_dev(int busno, int slave)
+{
+ struct udevice *dev, *bus;
+ int ret;
+
+ ret = uclass_get_device_by_seq(UCLASS_I2C, busno, &bus);
+ if (ret)
+ return NULL;
+ ret = dm_i2c_probe(bus, slave, 0, &dev);
+ if (ret)
+ return NULL;
+
+ return dev;
+}
+#endif
+
/*
* The Gateworks System Controller will fail to ACK a master transaction if
* it is busy, which can occur during its 1HZ timer tick while reading ADC's.
@@ -34,9 +53,27 @@ int gsc_i2c_read(uchar chip, uint addr, int alen, uchar *buf, int len)
int retry = 3;
int n = 0;
int ret;
+#if CONFIG_IS_ENABLED(DM_I2C)
+ struct udevice *dev;
+
+ dev = i2c_get_dev(CONFIG_I2C_GSC, chip);
+ if (!dev)
+ return -ENODEV;
+ ret = i2c_set_chip_offset_len(dev, alen);
+ if (ret) {
+ puts("EEPROM: Failed to set alen\n");
+ return ret;
+ }
+#else
+ i2c_set_bus_num(CONFIG_I2C_GSC);
+#endif
while (n++ < retry) {
+#if CONFIG_IS_ENABLED(DM_I2C)
+ ret = dm_i2c_read(dev, addr, buf, len);
+#else
ret = i2c_read(chip, addr, alen, buf, len);
+#endif
if (!ret)
break;
debug("%s: 0x%02x 0x%02x retry%d: %d\n", __func__, chip, addr,
@@ -53,9 +90,25 @@ int gsc_i2c_write(uchar chip, uint addr, int alen, uchar *buf, int len)
int retry = 3;
int n = 0;
int ret;
+#if CONFIG_IS_ENABLED(DM_I2C)
+ struct udevice *dev;
+
+ dev = i2c_get_dev(CONFIG_I2C_GSC, chip);
+ if (!dev)
+ return -ENODEV;
+ ret = i2c_set_chip_offset_len(dev, alen);
+ if (ret) {
+ puts("EEPROM: Failed to set alen\n");
+ return ret;
+ }
+#endif
while (n++ < retry) {
+#if CONFIG_IS_ENABLED(DM_I2C)
+ ret = dm_i2c_write(dev, addr, buf, len);
+#else
ret = i2c_write(chip, addr, alen, buf, len);
+#endif
if (!ret)
break;
debug("%s: 0x%02x 0x%02x retry%d: %d\n", __func__, chip, addr,
@@ -79,7 +132,6 @@ int gsc_get_board_temp(void)
node = fdt_node_offset_by_compatible(fdt, -1, "gw,gsc-adc");
if (node <= 0)
return node;
- i2c_set_bus_num(0);
/* iterate over hwmon nodes */
node = fdt_first_subnode(fdt, node);
@@ -122,7 +174,6 @@ int gsc_hwmon(void)
node = fdt_node_offset_by_compatible(fdt, -1, "gw,gsc-adc");
if (node <= 0)
return node;
- i2c_set_bus_num(0);
/* iterate over hwmon nodes */
node = fdt_first_subnode(fdt, node);
@@ -184,7 +235,6 @@ int gsc_info(int verbose)
{
unsigned char buf[16];
- i2c_set_bus_num(0);
if (gsc_i2c_read(GSC_SC_ADDR, 0, 1, buf, 16))
return CMD_RET_FAILURE;
@@ -225,7 +275,6 @@ int gsc_boot_wd_disable(void)
{
u8 reg;
- i2c_set_bus_num(CONFIG_I2C_GSC);
if (!gsc_i2c_read(GSC_SC_ADDR, GSC_SC_CTRL1, 1, ®, 1)) {
reg |= (1 << GSC_SC_CTRL1_WDDIS);
if (!gsc_i2c_write(GSC_SC_ADDR, GSC_SC_CTRL1, 1, ®, 1))
@@ -334,7 +383,6 @@ static int do_gsc_sleep(struct cmd_tbl *cmdtp, int flag, int argc,
secs = dectoul(argv[1], NULL);
printf("GSC Sleeping for %ld seconds\n", secs);
- i2c_set_bus_num(0);
reg = (secs >> 24) & 0xff;
if (gsc_i2c_write(GSC_SC_ADDR, 9, 1, ®, 1))
goto error;
@@ -377,7 +425,6 @@ static int do_gsc_wd(struct cmd_tbl *cmdtp, int flag, int argc,
if (argc > 2)
timeout = dectoul(argv[2], NULL);
- i2c_set_bus_num(0);
if (gsc_i2c_read(GSC_SC_ADDR, GSC_SC_CTRL1, 1, ®, 1))
return CMD_RET_FAILURE;
reg &= ~((1 << GSC_SC_CTRL1_WDEN) | (1 << GSC_SC_CTRL1_WDTIME));
@@ -391,7 +438,6 @@ static int do_gsc_wd(struct cmd_tbl *cmdtp, int flag, int argc,
printf("GSC Watchdog enabled with timeout=%d seconds\n",
timeout);
} else if (strcasecmp(argv[1], "disable") == 0) {
- i2c_set_bus_num(0);
if (gsc_i2c_read(GSC_SC_ADDR, GSC_SC_CTRL1, 1, ®, 1))
return CMD_RET_FAILURE;
reg &= ~((1 << GSC_SC_CTRL1_WDEN) | (1 << GSC_SC_CTRL1_WDTIME));
diff --git a/board/gateworks/gw_ventana/gsc.h b/board/gateworks/gw_ventana/gsc.h
index 5c349888280e..2e1d25bc6f04 100644
--- a/board/gateworks/gw_ventana/gsc.h
+++ b/board/gateworks/gw_ventana/gsc.h
@@ -68,4 +68,5 @@ int gsc_i2c_write(uchar chip, uint addr, int alen, uchar *buf, int len);
int gsc_info(int verbose);
int gsc_boot_wd_disable(void);
const char *gsc_get_dtb_name(int level, char *buf, int sz);
+struct udevice *i2c_get_dev(int busno, int slave);
#endif
diff --git a/board/gateworks/gw_ventana/gw_ventana.c b/board/gateworks/gw_ventana/gw_ventana.c
index 8cf791467024..a76f0ea62f9d 100644
--- a/board/gateworks/gw_ventana/gw_ventana.c
+++ b/board/gateworks/gw_ventana/gw_ventana.c
@@ -138,8 +138,7 @@ static int detect_lvds(struct display_info_t const *dev)
return 0;
}
- return i2c_set_bus_num(dev->bus) == 0 &&
- i2c_probe(dev->addr) == 0;
+ return (i2c_get_dev(dev->bus, dev->addr) ? 1 : 0);
}
static void enable_lvds(struct display_info_t const *dev)
@@ -355,13 +354,6 @@ static void setup_display(void)
}
#endif /* CONFIG_VIDEO_IPUV3 */
-/* setup board specific PMIC */
-int power_init_board(void)
-{
- setup_pmic();
- return 0;
-}
-
/*
* Most Ventana boards have a PLX PEX860x PCIe switch onboard and use its
* GPIO's as PERST# signals for its downstream ports - configure the GPIO's
@@ -490,12 +482,8 @@ int board_init(void)
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
/* read Gateworks EEPROM into global struct (used later) */
- setup_ventana_i2c(0);
board_type = read_eeprom(CONFIG_I2C_GSC, &ventana_info);
- setup_ventana_i2c(1);
- setup_ventana_i2c(2);
-
setup_iomux_gpio(board_type, &ventana_info);
return 0;
@@ -925,8 +913,7 @@ void ft_board_pci_fixup(void *blob, struct bd_info *bd)
*/
if ((dev->vendor == PCI_VENDOR_ID_TI) &&
(dev->device == 0x8240) &&
- (i2c_set_bus_num(1) == 0) &&
- (i2c_probe(0x50) == 0))
+ i2c_get_dev(1, 0x50))
{
np = fdt_add_pci_path(blob, dev);
if (np > 0)
diff --git a/board/gateworks/gw_ventana/gw_ventana_spl.c b/board/gateworks/gw_ventana/gw_ventana_spl.c
index 5a69aff67172..60e2768d2eba 100644
--- a/board/gateworks/gw_ventana/gw_ventana_spl.c
+++ b/board/gateworks/gw_ventana/gw_ventana_spl.c
@@ -20,6 +20,10 @@
#include <env.h>
#include <i2c.h>
#include <spl.h>
+#include <power/pmic.h>
+#include <power/ltc3676_pmic.h>
+#include <power/pfuze100_pmic.h>
+#include <power/mp5416.h>
#include "gsc.h"
#include "common.h"
@@ -667,6 +671,268 @@ static void ccgr_init(void)
writel(0x000003FF, &ccm->CCGR6);
}
+/*
+ * I2C pad configs:
+ * I2C1: GSC
+ * I2C2: PMIC,PCIe Switch,Clock,Mezz
+ * I2C3: Multimedia/Expansion
+ */
+static struct i2c_pads_info mx6q_i2c_pad_info[] = {
+ {
+ .scl = {
+ .i2c_mode = MX6Q_PAD_EIM_D21__I2C1_SCL | PC,
+ .gpio_mode = MX6Q_PAD_EIM_D21__GPIO3_IO21 | PC,
+ .gp = IMX_GPIO_NR(3, 21)
+ },
+ .sda = {
+ .i2c_mode = MX6Q_PAD_EIM_D28__I2C1_SDA | PC,
+ .gpio_mode = MX6Q_PAD_EIM_D28__GPIO3_IO28 | PC,
+ .gp = IMX_GPIO_NR(3, 28)
+ }
+ }, {
+ .scl = {
+ .i2c_mode = MX6Q_PAD_KEY_COL3__I2C2_SCL | PC,
+ .gpio_mode = MX6Q_PAD_KEY_COL3__GPIO4_IO12 | PC,
+ .gp = IMX_GPIO_NR(4, 12)
+ },
+ .sda = {
+ .i2c_mode = MX6Q_PAD_KEY_ROW3__I2C2_SDA | PC,
+ .gpio_mode = MX6Q_PAD_KEY_ROW3__GPIO4_IO13 | PC,
+ .gp = IMX_GPIO_NR(4, 13)
+ }
+ }, {
+ .scl = {
+ .i2c_mode = MX6Q_PAD_GPIO_3__I2C3_SCL | PC,
+ .gpio_mode = MX6Q_PAD_GPIO_3__GPIO1_IO03 | PC,
+ .gp = IMX_GPIO_NR(1, 3)
+ },
+ .sda = {
+ .i2c_mode = MX6Q_PAD_GPIO_6__I2C3_SDA | PC,
+ .gpio_mode = MX6Q_PAD_GPIO_6__GPIO1_IO06 | PC,
+ .gp = IMX_GPIO_NR(1, 6)
+ }
+ }
+};
+
+static struct i2c_pads_info mx6dl_i2c_pad_info[] = {
+ {
+ .scl = {
+ .i2c_mode = MX6DL_PAD_EIM_D21__I2C1_SCL | PC,
+ .gpio_mode = MX6DL_PAD_EIM_D21__GPIO3_IO21 | PC,
+ .gp = IMX_GPIO_NR(3, 21)
+ },
+ .sda = {
+ .i2c_mode = MX6DL_PAD_EIM_D28__I2C1_SDA | PC,
+ .gpio_mode = MX6DL_PAD_EIM_D28__GPIO3_IO28 | PC,
+ .gp = IMX_GPIO_NR(3, 28)
+ }
+ }, {
+ .scl = {
+ .i2c_mode = MX6DL_PAD_KEY_COL3__I2C2_SCL | PC,
+ .gpio_mode = MX6DL_PAD_KEY_COL3__GPIO4_IO12 | PC,
+ .gp = IMX_GPIO_NR(4, 12)
+ },
+ .sda = {
+ .i2c_mode = MX6DL_PAD_KEY_ROW3__I2C2_SDA | PC,
+ .gpio_mode = MX6DL_PAD_KEY_ROW3__GPIO4_IO13 | PC,
+ .gp = IMX_GPIO_NR(4, 13)
+ }
+ }, {
+ .scl = {
+ .i2c_mode = MX6DL_PAD_GPIO_3__I2C3_SCL | PC,
+ .gpio_mode = MX6DL_PAD_GPIO_3__GPIO1_IO03 | PC,
+ .gp = IMX_GPIO_NR(1, 3)
+ },
+ .sda = {
+ .i2c_mode = MX6DL_PAD_GPIO_6__I2C3_SDA | PC,
+ .gpio_mode = MX6DL_PAD_GPIO_6__GPIO1_IO06 | PC,
+ .gp = IMX_GPIO_NR(1, 6)
+ }
+ }
+};
+
+static void setup_ventana_i2c(int i2c)
+{
+ struct i2c_pads_info *p;
+
+ if (is_cpu_type(MXC_CPU_MX6Q))
+ p = &mx6q_i2c_pad_info[i2c];
+ else
+ p = &mx6dl_i2c_pad_info[i2c];
+
+ setup_i2c(i2c, CONFIG_SYS_I2C_SPEED, 0x7f, p);
+}
+
+/* setup board specific PMIC */
+void setup_pmic(void)
+{
+ struct pmic *p;
+ struct ventana_board_info ventana_info;
+ int board = read_eeprom(CONFIG_I2C_GSC, &ventana_info);
+ const int i2c_pmic = 1;
+ u32 reg;
+ char rev;
+ int i;
+
+ /* determine board revision */
+ rev = 'A';
+ for (i = sizeof(ventana_info.model) - 1; i > 0; i--) {
+ if (ventana_info.model[i] >= 'A') {
+ rev = ventana_info.model[i];
+ break;
+ }
+ }
+
+ i2c_set_bus_num(i2c_pmic);
+
+ /* configure PFUZE100 PMIC */
+ if (!i2c_probe(CONFIG_POWER_PFUZE100_I2C_ADDR)) {
+ debug("probed PFUZE100 at 0x%x\n", CONFIG_POWER_PFUZE100_I2C_ADDR);
+ power_pfuze100_init(i2c_pmic);
+ p = pmic_get("PFUZE100");
+ if (p && !pmic_probe(p)) {
+ pmic_reg_read(p, PFUZE100_DEVICEID, ®);
+ printf("PMIC: PFUZE100 ID=0x%02x\n", reg);
+
+ /* Set VGEN1 to 1.5V and enable */
+ pmic_reg_read(p, PFUZE100_VGEN1VOL, ®);
+ reg &= ~(LDO_VOL_MASK);
+ reg |= (LDOA_1_50V | LDO_EN);
+ pmic_reg_write(p, PFUZE100_VGEN1VOL, reg);
+
+ /* Set SWBST to 5.0V and enable */
+ pmic_reg_read(p, PFUZE100_SWBSTCON1, ®);
+ reg &= ~(SWBST_MODE_MASK | SWBST_VOL_MASK);
+ reg |= (SWBST_5_00V | (SWBST_MODE_AUTO << SWBST_MODE_SHIFT));
+ pmic_reg_write(p, PFUZE100_SWBSTCON1, reg);
+
+ if (board == GW54xx && (rev == 'G')) {
+ /* Disable VGEN5 */
+ pmic_reg_write(p, PFUZE100_VGEN5VOL, 0);
+
+ /* Set VGEN6 to 2.5V and enable */
+ pmic_reg_read(p, PFUZE100_VGEN6VOL, ®);
+ reg &= ~(LDO_VOL_MASK);
+ reg |= (LDOB_2_50V | LDO_EN);
+ pmic_reg_write(p, PFUZE100_VGEN6VOL, reg);
+ }
+ }
+
+ /* put all switchers in continuous mode */
+ pmic_reg_read(p, PFUZE100_SW1ABMODE, ®);
+ reg &= ~(SW_MODE_MASK);
+ reg |= PWM_PWM;
+ pmic_reg_write(p, PFUZE100_SW1ABMODE, reg);
+
+ pmic_reg_read(p, PFUZE100_SW2MODE, ®);
+ reg &= ~(SW_MODE_MASK);
+ reg |= PWM_PWM;
+ pmic_reg_write(p, PFUZE100_SW2MODE, reg);
+
+ pmic_reg_read(p, PFUZE100_SW3AMODE, ®);
+ reg &= ~(SW_MODE_MASK);
+ reg |= PWM_PWM;
+ pmic_reg_write(p, PFUZE100_SW3AMODE, reg);
+
+ pmic_reg_read(p, PFUZE100_SW3BMODE, ®);
+ reg &= ~(SW_MODE_MASK);
+ reg |= PWM_PWM;
+ pmic_reg_write(p, PFUZE100_SW3BMODE, reg);
+
+ pmic_reg_read(p, PFUZE100_SW4MODE, ®);
+ reg &= ~(SW_MODE_MASK);
+ reg |= PWM_PWM;
+ pmic_reg_write(p, PFUZE100_SW4MODE, reg);
+ }
+
+ /* configure LTC3676 PMIC */
+ else if (!i2c_probe(CONFIG_POWER_LTC3676_I2C_ADDR)) {
+ debug("probed LTC3676 at 0x%x\n", CONFIG_POWER_LTC3676_I2C_ADDR);
+ power_ltc3676_init(i2c_pmic);
+ p = pmic_get("LTC3676_PMIC");
+ if (!p || pmic_probe(p))
+ return;
+ puts("PMIC: LTC3676\n");
+ /*
+ * set board-specific scalar for max CPU frequency
+ * per CPU based on the LDO enabled Operating Ranges
+ * defined in the respective IMX6DQ and IMX6SDL
+ * datasheets. The voltage resulting from the R1/R2
+ * feedback inputs on Ventana is 1308mV. Note that this
+ * is a bit shy of the Vmin of 1350mV in the datasheet
+ * for LDO enabled mode but is as high as we can go.
+ */
+ switch (board) {
+ case GW560x:
+ /* mask PGOOD during SW3 transition */
+ pmic_reg_write(p, LTC3676_DVB3B,
+ 0x1f | LTC3676_PGOOD_MASK);
+ /* set SW3 (VDD_ARM) */
+ pmic_reg_write(p, LTC3676_DVB3A, 0x1f);
+ break;
+ case GW5903:
+ /* mask PGOOD during SW3 transition */
+ pmic_reg_write(p, LTC3676_DVB3B,
+ 0x1f | LTC3676_PGOOD_MASK);
+ /* set SW3 (VDD_ARM) */
+ pmic_reg_write(p, LTC3676_DVB3A, 0x1f);
+
+ /* mask PGOOD during SW4 transition */
+ pmic_reg_write(p, LTC3676_DVB4B,
+ 0x1f | LTC3676_PGOOD_MASK);
+ /* set SW4 (VDD_SOC) */
+ pmic_reg_write(p, LTC3676_DVB4A, 0x1f);
+ break;
+ case GW5905:
+ /* mask PGOOD during SW1 transition */
+ pmic_reg_write(p, LTC3676_DVB1B,
+ 0x1f | LTC3676_PGOOD_MASK);
+ /* set SW1 (VDD_ARM) */
+ pmic_reg_write(p, LTC3676_DVB1A, 0x1f);
+
+ /* mask PGOOD during SW3 transition */
+ pmic_reg_write(p, LTC3676_DVB3B,
+ 0x1f | LTC3676_PGOOD_MASK);
+ /* set SW3 (VDD_SOC) */
+ pmic_reg_write(p, LTC3676_DVB3A, 0x1f);
+ break;
+ default:
+ /* mask PGOOD during SW1 transition */
+ pmic_reg_write(p, LTC3676_DVB1B,
+ 0x1f | LTC3676_PGOOD_MASK);
+ /* set SW1 (VDD_SOC) */
+ pmic_reg_write(p, LTC3676_DVB1A, 0x1f);
+
+ /* mask PGOOD during SW3 transition */
+ pmic_reg_write(p, LTC3676_DVB3B,
+ 0x1f | LTC3676_PGOOD_MASK);
+ /* set SW3 (VDD_ARM) */
+ pmic_reg_write(p, LTC3676_DVB3A, 0x1f);
+ }
+
+ /* put all switchers in continuous mode */
+ pmic_reg_write(p, LTC3676_BUCK1, 0xc0);
+ pmic_reg_write(p, LTC3676_BUCK2, 0xc0);
+ pmic_reg_write(p, LTC3676_BUCK3, 0xc0);
+ pmic_reg_write(p, LTC3676_BUCK4, 0xc0);
+ }
+
+ /* configure MP5416 PMIC */
+ else if (!i2c_probe(0x69)) {
+ puts("PMIC: MP5416\n");
+ switch (board) {
+ case GW5910:
+ /* SW1: VDD_ARM 1.2V -> (1.275 to 1.475) */
+ reg = MP5416_VSET_EN | MP5416_VSET_SW1_SVAL(1475000);
+ i2c_write(0x69, MP5416_VSET_SW1, 1, (uint8_t *)®, 1);
+ /* SW4: VDD_SOC 1.2V -> (1.350 to 1.475) */
+ reg = MP5416_VSET_EN | MP5416_VSET_SW4_SVAL(1475000);
+ i2c_write(0x69, MP5416_VSET_SW4, 1, (uint8_t *)®, 1);
+ break;
+ }
+ }
+}
+
/*
* called from C runtime startup code (arch/arm/lib/crt0.S:_main)
* - we have a stack and a place to store GD, both in SRAM
diff --git a/configs/gwventana_emmc_defconfig b/configs/gwventana_emmc_defconfig
index fc33dd26ae52..8f73f102c119 100644
--- a/configs/gwventana_emmc_defconfig
+++ b/configs/gwventana_emmc_defconfig
@@ -92,7 +92,7 @@ CONFIG_NETCONSOLE=y
CONFIG_DM=y
CONFIG_BOUNCE_BUFFER=y
CONFIG_DWC_AHSATA=y
-CONFIG_SYS_I2C_LEGACY=y
+CONFIG_DM_I2C=y
CONFIG_SPL_SYS_I2C_LEGACY=y
CONFIG_SYS_I2C_MXC=y
CONFIG_LED=y
diff --git a/configs/gwventana_gw5904_defconfig b/configs/gwventana_gw5904_defconfig
index 93fd748eabac..0d128872317d 100644
--- a/configs/gwventana_gw5904_defconfig
+++ b/configs/gwventana_gw5904_defconfig
@@ -92,7 +92,7 @@ CONFIG_NETCONSOLE=y
CONFIG_DM=y
CONFIG_BOUNCE_BUFFER=y
CONFIG_DWC_AHSATA=y
-CONFIG_SYS_I2C_LEGACY=y
+CONFIG_DM_I2C=y
CONFIG_SPL_SYS_I2C_LEGACY=y
CONFIG_SYS_I2C_MXC=y
CONFIG_LED=y
diff --git a/configs/gwventana_nand_defconfig b/configs/gwventana_nand_defconfig
index 7d23ea32cdf5..07a2b8c95725 100644
--- a/configs/gwventana_nand_defconfig
+++ b/configs/gwventana_nand_defconfig
@@ -94,7 +94,7 @@ CONFIG_NETCONSOLE=y
CONFIG_DM=y
CONFIG_BOUNCE_BUFFER=y
CONFIG_DWC_AHSATA=y
-CONFIG_SYS_I2C_LEGACY=y
+CONFIG_DM_I2C=y
CONFIG_SPL_SYS_I2C_LEGACY=y
CONFIG_SYS_I2C_MXC=y
CONFIG_LED=y
--
2.17.1
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