[PATCH 18/27] dm: ppc: p1010: add i2c DM support
Biwen Li
biwen.li at oss.nxp.com
Sun Apr 12 10:54:19 CEST 2020
From: Biwen Li <biwen.li at nxp.com>
This supports i2c DM for SoC P1010
Signed-off-by: Biwen Li <biwen.li at nxp.com>
---
board/freescale/p1010rdb/p1010rdb.c | 159 +++++++++++++++++++++++++++-
include/configs/P1010RDB.h | 8 +-
2 files changed, 164 insertions(+), 3 deletions(-)
diff --git a/board/freescale/p1010rdb/p1010rdb.c b/board/freescale/p1010rdb/p1010rdb.c
index a086692683..f49e679d01 100644
--- a/board/freescale/p1010rdb/p1010rdb.c
+++ b/board/freescale/p1010rdb/p1010rdb.c
@@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2010-2011 Freescale Semiconductor, Inc.
+ * Copyright 2020 NXP
*/
#include <common.h>
@@ -136,6 +137,125 @@ int config_board_mux(int ctrl_type)
ccsr_gur_t __iomem *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
u8 tmp;
+#ifdef CONFIG_DM_I2C
+ struct udevice *dev;
+ int ret;
+#if defined(CONFIG_TARGET_P1010RDB_PA)
+ struct cpld_data *cpld_data = (void *)(CONFIG_SYS_CPLD_BASE);
+
+ ret = i2c_get_chip_for_busnum(I2C_PCA9557_BUS_NUM, I2C_PCA9557_ADDR1,
+ 1, &dev);
+ if (ret) {
+ printf("%s: Cannot find udev for a bus %d\n", __func__,
+ I2C_PCA9557_BUS_NUM);
+ return ret;
+ }
+ switch (ctrl_type) {
+ case MUX_TYPE_IFC:
+ tmp = 0xf0;
+ dm_i2c_write(dev, 3, &tmp, 1);
+ tmp = 0x01;
+ dm_i2c_write(dev, 1, &tmp, 1);
+ sd_ifc_mux = MUX_TYPE_IFC;
+ clrbits_be32(&gur->pmuxcr, PMUXCR1_IFC_MASK);
+ break;
+ case MUX_TYPE_SDHC:
+ tmp = 0xf0;
+ dm_i2c_write(dev, 3, &tmp, 1);
+ tmp = 0x05;
+ dm_i2c_write(dev, 1, &tmp, 1);
+ sd_ifc_mux = MUX_TYPE_SDHC;
+ clrsetbits_be32(&gur->pmuxcr, PMUXCR1_SDHC_MASK,
+ PMUXCR1_SDHC_ENABLE);
+ break;
+ case MUX_TYPE_SPIFLASH:
+ out_8(&cpld_data->spi_cs0_sel, MUX_CPLD_SPICS0_FLASH);
+ break;
+ case MUX_TYPE_TDM:
+ out_8(&cpld_data->tdm_can_sel, MUX_CPLD_TDM);
+ out_8(&cpld_data->spi_cs0_sel, MUX_CPLD_SPICS0_SLIC);
+ break;
+ case MUX_TYPE_CAN:
+ out_8(&cpld_data->tdm_can_sel, MUX_CPLD_CAN_UART);
+ break;
+ default:
+ break;
+ }
+#elif defined(CONFIG_TARGET_P1010RDB_PB)
+ ret = i2c_get_chip_for_busnum(I2C_PCA9557_BUS_NUM, I2C_PCA9557_ADDR2,
+ 1, &dev);
+ if (ret) {
+ printf("%s: Cannot find udev for a bus %d\n", __func__,
+ I2C_PCA9557_BUS_NUM);
+ return ret;
+ }
+ switch (ctrl_type) {
+ case MUX_TYPE_IFC:
+ dm_i2c_read(dev, 0, &tmp, 1);
+ clrbits_8(&tmp, 0x04);
+ dm_i2c_write(dev, 1, &tmp, 1);
+ dm_i2c_read(dev, 3, &tmp, 1);
+ clrbits_8(&tmp, 0x04);
+ dm_i2c_write(dev, 3, &tmp, 1);
+ sd_ifc_mux = MUX_TYPE_IFC;
+ clrbits_be32(&gur->pmuxcr, PMUXCR1_IFC_MASK);
+ break;
+ case MUX_TYPE_SDHC:
+ dm_i2c_read(dev, 0, &tmp, 1);
+ setbits_8(&tmp, 0x04);
+ dm_i2c_write(dev, 1, &tmp, 1);
+ dm_i2c_read(dev, 3, &tmp, 1);
+ clrbits_8(&tmp, 0x04);
+ dm_i2c_write(dev, 3, &tmp, 1);
+ sd_ifc_mux = MUX_TYPE_SDHC;
+ clrsetbits_be32(&gur->pmuxcr, PMUXCR1_SDHC_MASK,
+ PMUXCR1_SDHC_ENABLE);
+ break;
+ case MUX_TYPE_SPIFLASH:
+ dm_i2c_read(dev, 0, &tmp, 1);
+ clrbits_8(&tmp, 0x80);
+ dm_i2c_write(dev, 1, &tmp, 1);
+ dm_i2c_read(dev, 3, &tmp, 1);
+ clrbits_8(&tmp, 0x80);
+ dm_i2c_write(dev, 3, &tmp, 1);
+ break;
+ case MUX_TYPE_TDM:
+ dm_i2c_read(dev, 0, &tmp, 1);
+ setbits_8(&tmp, 0x82);
+ dm_i2c_write(dev, 1, &tmp, 1);
+ dm_i2c_read(dev, 3, &tmp, 1);
+ clrbits_8(&tmp, 0x82);
+ dm_i2c_write(dev, 3, &tmp, 1);
+ break;
+ case MUX_TYPE_CAN:
+ dm_i2c_read(dev, 0, &tmp, 1);
+ clrbits_8(&tmp, 0x02);
+ dm_i2c_write(dev, 1, &tmp, 1);
+ dm_i2c_read(dev, 3, &tmp, 1);
+ clrbits_8(&tmp, 0x02);
+ dm_i2c_write(dev, 3, &tmp, 1);
+ break;
+ case MUX_TYPE_CS0_NOR:
+ dm_i2c_read(dev, 0, &tmp, 1);
+ clrbits_8(&tmp, 0x08);
+ dm_i2c_write(dev, 1, &tmp, 1);
+ dm_i2c_read(dev, 3, &tmp, 1);
+ clrbits_8(&tmp, 0x08);
+ dm_i2c_write(dev, 3, &tmp, 1);
+ break;
+ case MUX_TYPE_CS0_NAND:
+ dm_i2c_read(dev, 0, &tmp, 1);
+ setbits_8(&tmp, 0x08);
+ dm_i2c_write(dev, 1, &tmp, 1);
+ dm_i2c_read(dev, 3, &tmp, 1);
+ clrbits_8(&tmp, 0x08);
+ dm_i2c_write(dev, 3, &tmp, 1);
+ break;
+ default:
+ break;
+ }
+#endif
+#else
#if defined(CONFIG_TARGET_P1010RDB_PA)
struct cpld_data *cpld_data = (void *)(CONFIG_SYS_CPLD_BASE);
@@ -242,6 +362,7 @@ int config_board_mux(int ctrl_type)
break;
}
i2c_set_bus_num(orig_bus);
+#endif
#endif
return 0;
}
@@ -250,9 +371,24 @@ int config_board_mux(int ctrl_type)
int i2c_pca9557_read(int type)
{
u8 val;
-
- i2c_set_bus_num(I2C_PCA9557_BUS_NUM);
+ int bus_num = I2C_PCA9557_BUS_NUM;
+
+#ifdef CONFIG_DM_I2C
+ struct udevice *dev;
+ int ret;
+
+ ret = i2c_get_chip_for_busnum(bus_num, I2C_PCA9557_ADDR2,
+ 1, &dev);
+ if (ret) {
+ printf("%s: Cannot find udev for a bus %d\n", __func__,
+ bus_num);
+ return ret;
+ }
+ dm_i2c_read(dev, 0, &val, 1);
+#else
+ i2c_set_bus_num(bus_num);
i2c_read(I2C_PCA9557_ADDR2, 0, 1, &val, 1);
+#endif
switch (type) {
case I2C_READ_BANK:
@@ -280,11 +416,26 @@ int checkboard(void)
printf("Board: %sRDB-PA, ", cpu->name);
#elif defined(CONFIG_TARGET_P1010RDB_PB)
printf("Board: %sRDB-PB, ", cpu->name);
+#ifdef CONFIG_DM_I2C
+ struct udevice *dev;
+ int ret;
+
+ ret = i2c_get_chip_for_busnum(I2C_PCA9557_BUS_NUM, I2C_PCA9557_ADDR2,
+ 1, &dev);
+ if (ret) {
+ printf("%s: Cannot find udev for a bus %d\n", __func__,
+ I2C_PCA9557_BUS_NUM);
+ return ret;
+ }
+ val = 0x0; /* no polarity inversion */
+ dm_i2c_write(dev, 2, &val, 1);
+#else
i2c_set_bus_num(I2C_PCA9557_BUS_NUM);
i2c_init(CONFIG_SYS_FSL_I2C_SPEED, CONFIG_SYS_FSL_I2C_SLAVE);
val = 0x0; /* no polarity inversion */
i2c_write(I2C_PCA9557_ADDR2, 2, 1, &val, 1);
#endif
+#endif
#ifdef CONFIG_SDCARD
/* switch to IFC to read info from CPLD */
@@ -308,7 +459,11 @@ int checkboard(void)
case 0xe:
puts("SDHC\n");
val = 0x60; /* set pca9557 pin input/output */
+#ifdef CONFIG_DM_I2C
+ dm_i2c_write(dev, 3, &val, 1);
+#else
i2c_write(I2C_PCA9557_ADDR2, 3, 1, &val, 1);
+#endif
break;
case 0x5:
config_board_mux(MUX_TYPE_IFC);
diff --git a/include/configs/P1010RDB.h b/include/configs/P1010RDB.h
index 60e8904d42..41dbbedecc 100644
--- a/include/configs/P1010RDB.h
+++ b/include/configs/P1010RDB.h
@@ -1,6 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright 2010-2011 Freescale Semiconductor, Inc.
+ * Copyright 2020 NXP
*/
/*
@@ -522,17 +523,22 @@ extern unsigned long get_sdram_size(void);
#define CONFIG_SYS_NS16550_COM2 (CONFIG_SYS_CCSRBAR+0x4600)
/* I2C */
+#ifndef CONFIG_DM_I2C
#define CONFIG_SYS_I2C
-#define CONFIG_SYS_I2C_FSL
#define CONFIG_SYS_FSL_I2C_SPEED 400000
#define CONFIG_SYS_FSL_I2C_SLAVE 0x7F
#define CONFIG_SYS_FSL_I2C_OFFSET 0x3000
#define CONFIG_SYS_FSL_I2C2_SPEED 400000
#define CONFIG_SYS_FSL_I2C2_SLAVE 0x7F
#define CONFIG_SYS_FSL_I2C2_OFFSET 0x3100
+#else
+#define CONFIG_I2C_SET_DEFAULT_BUS_NUM
+#define CONFIG_I2C_DEFAULT_BUS_NUMBER 0
+#endif
#define I2C_PCA9557_ADDR1 0x18
#define I2C_PCA9557_ADDR2 0x19
#define I2C_PCA9557_BUS_NUM 0
+#define CONFIG_SYS_I2C_FSL
/* I2C EEPROM */
#if defined(CONFIG_TARGET_P1010RDB_PB)
--
2.17.1
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