[PATCH 16/27] dm: powerpc: T1023/T1024: add i2c DM support
Biwen Li
biwen.li at oss.nxp.com
Sun Apr 12 10:54:17 CEST 2020
From: Biwen Li <biwen.li at nxp.com>
Thiss supports i2c DM for SoC T1023/T1024
Signed-off-by: Biwen Li <biwen.li at nxp.com>
---
arch/powerpc/dts/t102x.dtsi | 4 +-
board/freescale/t102xqds/t102xqds.c | 94 ++++++++++++++++++++++++++++-
board/freescale/t102xqds/t102xqds.h | 3 +-
board/freescale/t102xrdb/t102xrdb.c | 70 +++++++++++++++++++--
include/configs/T102xQDS.h | 10 ++-
include/configs/T102xRDB.h | 8 ++-
6 files changed, 179 insertions(+), 10 deletions(-)
diff --git a/arch/powerpc/dts/t102x.dtsi b/arch/powerpc/dts/t102x.dtsi
index a6b821a76a..521825d85a 100644
--- a/arch/powerpc/dts/t102x.dtsi
+++ b/arch/powerpc/dts/t102x.dtsi
@@ -3,7 +3,7 @@
* T102X Silicon/SoC Device Tree Source (pre include)
*
* Copyright 2013 Freescale Semiconductor Inc.
- * Copyright 2019 NXP
+ * Copyright 2019-2020 NXP
*/
/dts-v1/;
@@ -75,6 +75,8 @@
reg = <0x114000 0x1000>;
clock-frequency = <0>;
};
+ /include/ "qoriq-i2c-0.dtsi"
+ /include/ "qoriq-i2c-1.dtsi"
};
pcie at ffe240000 {
diff --git a/board/freescale/t102xqds/t102xqds.c b/board/freescale/t102xqds/t102xqds.c
index e42337e47a..0bff011ff8 100644
--- a/board/freescale/t102xqds/t102xqds.c
+++ b/board/freescale/t102xqds/t102xqds.c
@@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2014 Freescale Semiconductor, Inc.
+ * Copyright 2020 NXP
*/
#include <common.h>
@@ -75,11 +76,23 @@ int checkboard(void)
return 0;
}
-int select_i2c_ch_pca9547(u8 ch)
+int select_i2c_ch_pca9547(u8 ch, int bus_num)
{
int ret;
+#ifdef CONFIG_DM_I2C
+ struct udevice *dev;
+ ret = i2c_get_chip_for_busnum(bus_num, I2C_MUX_PCA_ADDR_PRI,
+ 1, &dev);
+ if (ret) {
+ printf("%s: Cannot find udev for a bus %d\n", __func__,
+ bus_num);
+ return ret;
+ }
+ ret = dm_i2c_write(dev, 0, &ch, 1);
+#else
ret = i2c_write(I2C_MUX_PCA_ADDR_PRI, 0, 1, &ch, 1);
+#endif
if (ret) {
puts("PCA: failed to select proper channel\n");
return ret;
@@ -191,6 +204,82 @@ void board_retimer_ds125df111_init(void)
{
u8 reg;
+#ifdef CONFIG_DM_I2C
+ struct udevice *dev;
+ int ret, bus_num = 0;
+
+ ret = i2c_get_chip_for_busnum(bus_num, I2C_MUX_PCA_ADDR_PRI,
+ 1, &dev);
+ if (ret)
+ goto failed;
+
+ /* Retimer DS125DF111 is connected to I2C1_CH7_CH5 */
+ reg = I2C_MUX_CH7;
+ dm_i2c_write(dev, 0, ®, 1);
+
+ ret = i2c_get_chip_for_busnum(bus_num, I2C_MUX_PCA_ADDR_SEC,
+ 1, &dev);
+ if (ret)
+ goto failed;
+
+ reg = I2C_MUX_CH5;
+ dm_i2c_write(dev, 0, ®, 1);
+
+ /* Access to Control/Shared register */
+ ret = i2c_get_chip_for_busnum(bus_num, I2C_RETIMER_ADDR,
+ 1, &dev);
+ if (ret)
+ goto failed;
+ reg = 0x0;
+ dm_i2c_write(dev, 0xff, ®, 1);
+
+ /* Read device revision and ID */
+ dm_i2c_read(dev, 1, ®, 1);
+ debug("Retimer version id = 0x%x\n", reg);
+
+ /* Enable Broadcast */
+ reg = 0x0c;
+ dm_i2c_write(dev, 0xff, ®, 1);
+
+ /* Reset Channel Registers */
+ dm_i2c_read(dev, 0, ®, 1);
+ reg |= 0x4;
+ dm_i2c_write(dev, 0, ®, 1);
+
+ /* Enable override divider select and Enable Override Output Mux */
+ dm_i2c_read(dev, 9, ®, 1);
+ reg |= 0x24;
+ dm_i2c_write(dev, 9, ®, 1);
+
+ /* Select VCO Divider to full rate (000) */
+ dm_i2c_read(dev, 0x18, ®, 1);
+ reg &= 0x8f;
+ dm_i2c_write(dev, 0x18, ®, 1);
+
+ /* Select active PFD MUX input as re-timed data (001) */
+ dm_i2c_read(dev, 0x1e, ®, 1);
+ reg &= 0x3f;
+ reg |= 0x20;
+ dm_i2c_write(dev, 0x1e, ®, 1);
+
+ /* Set data rate as 10.3125 Gbps */
+ reg = 0x0;
+ dm_i2c_write(dev, 0x60, ®, 1);
+ reg = 0xb2;
+ dm_i2c_write(dev, 0x61, ®, 1);
+ reg = 0x90;
+ dm_i2c_write(dev, 0x62, ®, 1);
+ reg = 0xb3;
+ dm_i2c_write(dev, 0x63, ®, 1);
+ reg = 0xcd;
+ dm_i2c_write(dev, 0x64, ®, 1);
+ return;
+
+failed:
+ printf("%s: Cannot find udev for a bus %d\n", __func__,
+ bus_num);
+ return;
+#else
/* Retimer DS125DF111 is connected to I2C1_CH7_CH5 */
reg = I2C_MUX_CH7;
i2c_write(I2C_MUX_PCA_ADDR_PRI, 0, 1, ®, 1);
@@ -241,6 +330,7 @@ void board_retimer_ds125df111_init(void)
i2c_write(I2C_RETIMER_ADDR, 0x63, 1, ®, 1);
reg = 0xcd;
i2c_write(I2C_RETIMER_ADDR, 0x64, 1, ®, 1);
+#endif
}
int board_early_init_f(void)
@@ -281,7 +371,7 @@ int board_early_init_r(void)
MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
0, flash_esel, BOOKE_PAGESZ_256M, 1);
#endif
- select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
+ select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT, 0);
board_mux_lane_to_slot();
board_retimer_ds125df111_init();
diff --git a/board/freescale/t102xqds/t102xqds.h b/board/freescale/t102xqds/t102xqds.h
index 15de132598..d327b5edb9 100644
--- a/board/freescale/t102xqds/t102xqds.h
+++ b/board/freescale/t102xqds/t102xqds.h
@@ -1,6 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright 2014 Freescale Semiconductor, Inc.
+ * Copyright 2020 NXP
*/
#ifndef __T102x_QDS_H__
@@ -8,6 +9,6 @@
void fdt_fixup_board_enet(void *blob);
void pci_of_setup(void *blob, bd_t *bd);
-int select_i2c_ch_pca9547(u8 ch);
+int select_i2c_ch_pca9547(u8 ch, int bus_num);
#endif
diff --git a/board/freescale/t102xrdb/t102xrdb.c b/board/freescale/t102xrdb/t102xrdb.c
index eee09a5701..71ca9a5361 100644
--- a/board/freescale/t102xrdb/t102xrdb.c
+++ b/board/freescale/t102xrdb/t102xrdb.c
@@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2014 Freescale Semiconductor, Inc.
+ * Copyright 2020 NXP
*/
#include <common.h>
@@ -250,8 +251,68 @@ static u32 t1023rdb_ctrl(u32 ctrl_type)
{
ccsr_gpio_t __iomem *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR);
ccsr_gur_t __iomem *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
- u32 val, orig_bus = i2c_get_bus_num();
+ u32 val;
u8 tmp;
+ int bus_num = I2C_PCA6408_BUS_NUM;
+
+#ifdef CONFIG_DM_I2C
+ struct udevice *dev;
+ int ret;
+
+ ret = i2c_get_chip_for_busnum(bus_num, I2C_PCA6408_ADDR,
+ 1, &dev);
+ if (ret) {
+ printf("%s: Cannot find udev for a bus %d\n", __func__,
+ bus_num);
+ return ret;
+ }
+ switch (ctrl_type) {
+ case GPIO1_SD_SEL:
+ val = in_be32(&pgpio->gpdat);
+ val |= GPIO1_SD_SEL;
+ out_be32(&pgpio->gpdat, val);
+ setbits_be32(&pgpio->gpdir, GPIO1_SD_SEL);
+ break;
+ case GPIO1_EMMC_SEL:
+ val = in_be32(&pgpio->gpdat);
+ val &= ~GPIO1_SD_SEL;
+ out_be32(&pgpio->gpdat, val);
+ setbits_be32(&pgpio->gpdir, GPIO1_SD_SEL);
+ break;
+ case GPIO3_GET_VERSION:
+ pgpio = (ccsr_gpio_t *)(CONFIG_SYS_MPC85xx_GPIO_ADDR
+ + GPIO3_OFFSET);
+ val = in_be32(&pgpio->gpdat);
+ val = ((val & GPIO3_BRD_VER_MASK) >> 26) & 0x3;
+ if (val == 0x3) /* GPIO3_4/5 not used on RevB */
+ val = 0;
+ return val;
+ case I2C_GET_BANK:
+ dm_i2c_read(dev, 0, &tmp, 1);
+ tmp &= 0x7;
+ tmp = ((tmp & 1) << 2) | (tmp & 2) | ((tmp & 4) >> 2);
+ return tmp;
+ case I2C_SET_BANK0:
+ tmp = 0x0;
+ dm_i2c_write(dev, 1, &tmp, 1);
+ tmp = 0xf8;
+ dm_i2c_write(dev, 3, &tmp, 1);
+ /* asserting HRESET_REQ */
+ out_be32(&gur->rstcr, 0x2);
+ break;
+ case I2C_SET_BANK4:
+ tmp = 0x1;
+ dm_i2c_write(dev, 1, &tmp, 1);
+ tmp = 0xf8;
+ dm_i2c_write(dev, 3, &tmp, 1);
+ out_be32(&gur->rstcr, 0x2);
+ break;
+ default:
+ break;
+ }
+#else
+ u32 orig_bus;
+ orig_bus = i2c_get_bus_num();
switch (ctrl_type) {
case GPIO1_SD_SEL:
@@ -275,14 +336,14 @@ static u32 t1023rdb_ctrl(u32 ctrl_type)
val = 0;
return val;
case I2C_GET_BANK:
- i2c_set_bus_num(I2C_PCA6408_BUS_NUM);
+ i2c_set_bus_num(bus_num);
i2c_read(I2C_PCA6408_ADDR, 0, 1, &tmp, 1);
tmp &= 0x7;
tmp = ((tmp & 1) << 2) | (tmp & 2) | ((tmp & 4) >> 2);
i2c_set_bus_num(orig_bus);
return tmp;
case I2C_SET_BANK0:
- i2c_set_bus_num(I2C_PCA6408_BUS_NUM);
+ i2c_set_bus_num(bus_num);
tmp = 0x0;
i2c_write(I2C_PCA6408_ADDR, 1, 1, &tmp, 1);
tmp = 0xf8;
@@ -291,7 +352,7 @@ static u32 t1023rdb_ctrl(u32 ctrl_type)
out_be32(&gur->rstcr, 0x2);
break;
case I2C_SET_BANK4:
- i2c_set_bus_num(I2C_PCA6408_BUS_NUM);
+ i2c_set_bus_num(bus_num);
tmp = 0x1;
i2c_write(I2C_PCA6408_ADDR, 1, 1, &tmp, 1);
tmp = 0xf8;
@@ -301,6 +362,7 @@ static u32 t1023rdb_ctrl(u32 ctrl_type)
default:
break;
}
+#endif
return 0;
}
diff --git a/include/configs/T102xQDS.h b/include/configs/T102xQDS.h
index 8ac260c2bc..2b61fa56e5 100644
--- a/include/configs/T102xQDS.h
+++ b/include/configs/T102xQDS.h
@@ -1,6 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright 2014 Freescale Semiconductor, Inc.
+ * Copyright 2020 NXP
*/
/*
@@ -437,14 +438,20 @@ unsigned long get_board_ddr_clk(void);
#endif
/* I2C */
+#ifndef CONFIG_DM_I2C
#define CONFIG_SYS_I2C
-#define CONFIG_SYS_I2C_FSL /* Use FSL common I2C driver */
#define CONFIG_SYS_FSL_I2C_SPEED 50000 /* I2C speed in Hz */
#define CONFIG_SYS_FSL_I2C_SLAVE 0x7F
#define CONFIG_SYS_FSL_I2C2_SPEED 50000 /* I2C speed in Hz */
#define CONFIG_SYS_FSL_I2C2_SLAVE 0x7F
#define CONFIG_SYS_FSL_I2C_OFFSET 0x118000
#define CONFIG_SYS_FSL_I2C2_OFFSET 0x118100
+#else
+#define CONFIG_I2C_SET_DEFAULT_BUS_NUM
+#define CONFIG_I2C_DEFAULT_BUS_NUMBER 0
+#endif
+
+#define CONFIG_SYS_I2C_FSL /* Use FSL common I2C driver */
#define I2C_MUX_PCA_ADDR 0x77
#define I2C_MUX_PCA_ADDR_PRI 0x77 /* Primary Mux*/
@@ -460,6 +467,7 @@ unsigned long get_board_ddr_clk(void);
/* LDI/DVI Encoder for display */
#define CONFIG_SYS_I2C_LDI_ADDR 0x38
#define CONFIG_SYS_I2C_DVI_ADDR 0x75
+#define CONFIG_SYS_I2C_DVI_BUS_NUM 0
/*
* RTC configuration
diff --git a/include/configs/T102xRDB.h b/include/configs/T102xRDB.h
index 43897a711a..b9dbc01f08 100644
--- a/include/configs/T102xRDB.h
+++ b/include/configs/T102xRDB.h
@@ -1,6 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright 2014 Freescale Semiconductor, Inc.
+ * Copyright 2020 NXP
*/
/*
@@ -434,15 +435,20 @@ unsigned long get_board_ddr_clk(void);
#endif
/* I2C */
+#ifndef CONFIG_DM_I2C
#define CONFIG_SYS_I2C
-#define CONFIG_SYS_I2C_FSL /* Use FSL common I2C driver */
#define CONFIG_SYS_FSL_I2C_SPEED 50000 /* I2C speed in Hz */
#define CONFIG_SYS_FSL_I2C_SLAVE 0x7F
#define CONFIG_SYS_FSL_I2C2_SPEED 50000 /* I2C speed in Hz */
#define CONFIG_SYS_FSL_I2C2_SLAVE 0x7F
#define CONFIG_SYS_FSL_I2C_OFFSET 0x118000
#define CONFIG_SYS_FSL_I2C2_OFFSET 0x118100
+#else
+#define CONFIG_I2C_SET_DEFAULT_BUS_NUM
+#define CONFIG_I2C_DEFAULT_BUS_NUMBER 0
+#endif
+#define CONFIG_SYS_I2C_FSL /* Use FSL common I2C driver */
#define I2C_PCA6408_BUS_NUM 1
#define I2C_PCA6408_ADDR 0x20
--
2.17.1
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