summaryrefslogtreecommitdiff
path: root/drivers
diff options
context:
space:
mode:
Diffstat (limited to 'drivers')
-rw-r--r--drivers/dfu/dfu_mmc.c93
-rw-r--r--drivers/gpio/da8xx_gpio.c3
-rw-r--r--drivers/gpio/intel_gpio.c10
-rw-r--r--drivers/gpio/pca953x_gpio.c11
-rw-r--r--drivers/i2c/mxc_i2c.c1
-rw-r--r--drivers/net/Kconfig7
-rw-r--r--drivers/net/Makefile1
-rw-r--r--drivers/net/bcmgenet.c729
-rw-r--r--drivers/pinctrl/intel/pinctrl.c2
-rw-r--r--drivers/rtc/pcf8563.c107
-rw-r--r--drivers/serial/Kconfig32
-rw-r--r--drivers/serial/Makefile1
-rw-r--r--drivers/serial/ns16550.c79
-rw-r--r--drivers/serial/serial_coreboot.c46
-rw-r--r--drivers/spi/ich.c12
-rw-r--r--drivers/usb/gadget/dwc2_udc_otg.c2
-rw-r--r--drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c12
-rw-r--r--drivers/video/Kconfig5
-rw-r--r--drivers/watchdog/omap_wdt.c56
19 files changed, 1116 insertions, 93 deletions
diff --git a/drivers/dfu/dfu_mmc.c b/drivers/dfu/dfu_mmc.c
index 5b551f6ae11..0d495a785bc 100644
--- a/drivers/dfu/dfu_mmc.c
+++ b/drivers/dfu/dfu_mmc.c
@@ -17,7 +17,7 @@
static unsigned char *dfu_file_buf;
static u64 dfu_file_buf_len;
-static long dfu_file_buf_filled;
+static u64 dfu_file_buf_offset;
static int mmc_block_op(enum dfu_op op, struct dfu_entity *dfu,
u64 offset, void *buf, long *len)
@@ -91,22 +91,8 @@ static int mmc_block_op(enum dfu_op op, struct dfu_entity *dfu,
return 0;
}
-static int mmc_file_buffer(struct dfu_entity *dfu, void *buf, long *len)
-{
- if (dfu_file_buf_len + *len > CONFIG_SYS_DFU_MAX_FILE_SIZE) {
- dfu_file_buf_len = 0;
- return -EINVAL;
- }
-
- /* Add to the current buffer. */
- memcpy(dfu_file_buf + dfu_file_buf_len, buf, *len);
- dfu_file_buf_len += *len;
-
- return 0;
-}
-
static int mmc_file_op(enum dfu_op op, struct dfu_entity *dfu,
- void *buf, u64 *len)
+ u64 offset, void *buf, u64 *len)
{
char dev_part_str[8];
int ret;
@@ -137,7 +123,7 @@ static int mmc_file_op(enum dfu_op op, struct dfu_entity *dfu,
switch (op) {
case DFU_OP_READ:
- ret = fs_read(dfu->name, (size_t)buf, 0, 0, &size);
+ ret = fs_read(dfu->name, (size_t)buf, offset, *len, &size);
if (ret) {
puts("dfu: fs_read error!\n");
return ret;
@@ -145,7 +131,7 @@ static int mmc_file_op(enum dfu_op op, struct dfu_entity *dfu,
*len = size;
break;
case DFU_OP_WRITE:
- ret = fs_write(dfu->name, (size_t)buf, 0, *len, &size);
+ ret = fs_write(dfu->name, (size_t)buf, offset, *len, &size);
if (ret) {
puts("dfu: fs_write error!\n");
return ret;
@@ -166,6 +152,43 @@ static int mmc_file_op(enum dfu_op op, struct dfu_entity *dfu,
return ret;
}
+static int mmc_file_buf_write(struct dfu_entity *dfu, u64 offset, void *buf, long *len)
+{
+ int ret = 0;
+
+ if (offset == 0) {
+ dfu_file_buf_len = 0;
+ dfu_file_buf_offset = 0;
+ }
+
+ /* Add to the current buffer. */
+ if (dfu_file_buf_len + *len > CONFIG_SYS_DFU_MAX_FILE_SIZE)
+ *len = CONFIG_SYS_DFU_MAX_FILE_SIZE - dfu_file_buf_len;
+ memcpy(dfu_file_buf + dfu_file_buf_len, buf, *len);
+ dfu_file_buf_len += *len;
+
+ if (dfu_file_buf_len == CONFIG_SYS_DFU_MAX_FILE_SIZE) {
+ ret = mmc_file_op(DFU_OP_WRITE, dfu, dfu_file_buf_offset,
+ dfu_file_buf, &dfu_file_buf_len);
+ dfu_file_buf_offset += dfu_file_buf_len;
+ dfu_file_buf_len = 0;
+ }
+
+ return ret;
+}
+
+static int mmc_file_buf_write_finish(struct dfu_entity *dfu)
+{
+ int ret = mmc_file_op(DFU_OP_WRITE, dfu, dfu_file_buf_offset,
+ dfu_file_buf, &dfu_file_buf_len);
+
+ /* Now that we're done */
+ dfu_file_buf_len = 0;
+ dfu_file_buf_offset = 0;
+
+ return ret;
+}
+
int dfu_write_medium_mmc(struct dfu_entity *dfu,
u64 offset, void *buf, long *len)
{
@@ -177,7 +200,7 @@ int dfu_write_medium_mmc(struct dfu_entity *dfu,
break;
case DFU_FS_FAT:
case DFU_FS_EXT4:
- ret = mmc_file_buffer(dfu, buf, len);
+ ret = mmc_file_buf_write(dfu, offset, buf, len);
break;
default:
printf("%s: Layout (%s) not (yet) supported!\n", __func__,
@@ -193,11 +216,7 @@ int dfu_flush_medium_mmc(struct dfu_entity *dfu)
if (dfu->layout != DFU_RAW_ADDR) {
/* Do stuff here. */
- ret = mmc_file_op(DFU_OP_WRITE, dfu, dfu_file_buf,
- &dfu_file_buf_len);
-
- /* Now that we're done */
- dfu_file_buf_len = 0;
+ ret = mmc_file_buf_write_finish(dfu);
}
return ret;
@@ -213,12 +232,9 @@ int dfu_get_medium_size_mmc(struct dfu_entity *dfu, u64 *size)
return 0;
case DFU_FS_FAT:
case DFU_FS_EXT4:
- dfu_file_buf_filled = -1;
- ret = mmc_file_op(DFU_OP_SIZE, dfu, NULL, size);
+ ret = mmc_file_op(DFU_OP_SIZE, dfu, 0, NULL, size);
if (ret < 0)
return ret;
- if (*size > CONFIG_SYS_DFU_MAX_FILE_SIZE)
- return -1;
return 0;
default:
printf("%s: Layout (%s) not (yet) supported!\n", __func__,
@@ -227,23 +243,28 @@ int dfu_get_medium_size_mmc(struct dfu_entity *dfu, u64 *size)
}
}
-static int mmc_file_unbuffer(struct dfu_entity *dfu, u64 offset, void *buf,
+
+static int mmc_file_buf_read(struct dfu_entity *dfu, u64 offset, void *buf,
long *len)
{
int ret;
- u64 file_len;
- if (dfu_file_buf_filled == -1) {
- ret = mmc_file_op(DFU_OP_READ, dfu, dfu_file_buf, &file_len);
+ if (offset == 0 || offset >= dfu_file_buf_offset + dfu_file_buf_len ||
+ offset + *len < dfu_file_buf_offset) {
+ u64 file_len = CONFIG_SYS_DFU_MAX_FILE_SIZE;
+
+ ret = mmc_file_op(DFU_OP_READ, dfu, offset, dfu_file_buf,
+ &file_len);
if (ret < 0)
return ret;
- dfu_file_buf_filled = file_len;
+ dfu_file_buf_len = file_len;
+ dfu_file_buf_offset = offset;
}
- if (offset + *len > dfu_file_buf_filled)
+ if (offset + *len > dfu_file_buf_offset + dfu_file_buf_len)
return -EINVAL;
/* Add to the current buffer. */
- memcpy(buf, dfu_file_buf + offset, *len);
+ memcpy(buf, dfu_file_buf + offset - dfu_file_buf_offset, *len);
return 0;
}
@@ -259,7 +280,7 @@ int dfu_read_medium_mmc(struct dfu_entity *dfu, u64 offset, void *buf,
break;
case DFU_FS_FAT:
case DFU_FS_EXT4:
- ret = mmc_file_unbuffer(dfu, offset, buf, len);
+ ret = mmc_file_buf_read(dfu, offset, buf, len);
break;
default:
printf("%s: Layout (%s) not (yet) supported!\n", __func__,
diff --git a/drivers/gpio/da8xx_gpio.c b/drivers/gpio/da8xx_gpio.c
index bd5a366aef3..ac88f0ca8d8 100644
--- a/drivers/gpio/da8xx_gpio.c
+++ b/drivers/gpio/da8xx_gpio.c
@@ -434,7 +434,7 @@ int gpio_set_value(unsigned int gpio, int value)
static struct davinci_gpio *davinci_get_gpio_bank(struct udevice *dev, unsigned int offset)
{
struct davinci_gpio_bank *bank = dev_get_priv(dev);
- unsigned int addr;
+ unsigned long addr;
/*
* The device tree is not broken into banks but the infrastructure is
@@ -535,6 +535,7 @@ static int davinci_gpio_probe(struct udevice *dev)
static const struct udevice_id davinci_gpio_ids[] = {
{ .compatible = "ti,dm6441-gpio" },
{ .compatible = "ti,k2g-gpio" },
+ { .compatible = "ti,keystone-gpio" },
{ }
};
diff --git a/drivers/gpio/intel_gpio.c b/drivers/gpio/intel_gpio.c
index 4bf1c9ddc4e..67b8b80b9d6 100644
--- a/drivers/gpio/intel_gpio.c
+++ b/drivers/gpio/intel_gpio.c
@@ -39,9 +39,9 @@ static int intel_gpio_direction_output(struct udevice *dev, uint offset,
struct udevice *pinctrl = dev_get_parent(dev);
uint config_offset = intel_pinctrl_get_config_reg_addr(pinctrl, offset);
- pcr_clrsetbits32(dev, config_offset,
+ pcr_clrsetbits32(pinctrl, config_offset,
PAD_CFG0_MODE_MASK | PAD_CFG0_RX_STATE |
- PAD_CFG0_TX_DISABLE,
+ PAD_CFG0_TX_DISABLE | PAD_CFG0_TX_STATE,
PAD_CFG0_MODE_GPIO | PAD_CFG0_RX_DISABLE |
(value ? PAD_CFG0_TX_STATE : 0));
@@ -59,9 +59,9 @@ static int intel_gpio_get_value(struct udevice *dev, uint offset)
if (!mode) {
rx_tx = reg & (PAD_CFG0_TX_DISABLE | PAD_CFG0_RX_DISABLE);
if (rx_tx == PAD_CFG0_TX_DISABLE)
- return mode & PAD_CFG0_RX_STATE_BIT ? 1 : 0;
+ return reg & PAD_CFG0_RX_STATE ? 1 : 0;
else if (rx_tx == PAD_CFG0_RX_DISABLE)
- return mode & PAD_CFG0_TX_STATE_BIT ? 1 : 0;
+ return reg & PAD_CFG0_TX_STATE ? 1 : 0;
}
return 0;
@@ -72,7 +72,7 @@ static int intel_gpio_set_value(struct udevice *dev, unsigned offset, int value)
struct udevice *pinctrl = dev_get_parent(dev);
uint config_offset = intel_pinctrl_get_config_reg_addr(pinctrl, offset);
- pcr_clrsetbits32(dev, config_offset, PAD_CFG0_TX_STATE,
+ pcr_clrsetbits32(pinctrl, config_offset, PAD_CFG0_TX_STATE,
value ? PAD_CFG0_TX_STATE : 0);
return 0;
diff --git a/drivers/gpio/pca953x_gpio.c b/drivers/gpio/pca953x_gpio.c
index 07a3356b3c8..5c2944067bc 100644
--- a/drivers/gpio/pca953x_gpio.c
+++ b/drivers/gpio/pca953x_gpio.c
@@ -15,8 +15,7 @@
*
* TODO:
* 1. Support PCA957X_TYPE
- * 2. Support 24 gpio pins
- * 3. Support Polarity Inversion
+ * 2. Support Polarity Inversion
*/
#include <common.h>
@@ -118,6 +117,10 @@ static int pca953x_read_regs(struct udevice *dev, int reg, u8 *val)
ret = dm_i2c_read(dev, reg, val, 1);
} else if (info->gpio_count <= 16) {
ret = dm_i2c_read(dev, reg << 1, val, info->bank_count);
+ } else if (info->gpio_count <= 24) {
+ /* Auto increment */
+ ret = dm_i2c_read(dev, (reg << 2) | 0x80, val,
+ info->bank_count);
} else if (info->gpio_count == 40) {
/* Auto increment */
ret = dm_i2c_read(dev, (reg << 3) | 0x80, val,
@@ -139,6 +142,10 @@ static int pca953x_write_regs(struct udevice *dev, int reg, u8 *val)
ret = dm_i2c_write(dev, reg, val, 1);
} else if (info->gpio_count <= 16) {
ret = dm_i2c_write(dev, reg << 1, val, info->bank_count);
+ } else if (info->gpio_count <= 24) {
+ /* Auto increment */
+ ret = dm_i2c_write(dev, (reg << 2) | 0x80, val,
+ info->bank_count);
} else if (info->gpio_count == 40) {
/* Auto increment */
ret = dm_i2c_write(dev, (reg << 3) | 0x80, val, info->bank_count);
diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c
index 786b5a2226b..6b7ce985b3a 100644
--- a/drivers/i2c/mxc_i2c.c
+++ b/drivers/i2c/mxc_i2c.c
@@ -1049,5 +1049,6 @@ U_BOOT_DRIVER(i2c_mxc) = {
.probe = mxc_i2c_probe,
.priv_auto_alloc_size = sizeof(struct mxc_i2c_bus),
.ops = &mxc_i2c_ops,
+ .flags = DM_FLAG_PRE_RELOC,
};
#endif
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 01d087f229f..4d1013c9846 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -136,6 +136,13 @@ config BCM6368_ETH
help
This driver supports the BCM6368 Ethernet MAC.
+config BCMGENET
+ bool "BCMGENET V5 support"
+ depends on DM_ETH
+ select PHYLIB
+ help
+ This driver supports the BCMGENET Ethernet MAC.
+
config DWC_ETH_QOS
bool "Synopsys DWC Ethernet QOS device support"
depends on DM_ETH
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 30991834ecf..6e0a68834d9 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_AG7XXX) += ag7xxx.o
obj-$(CONFIG_ARMADA100_FEC) += armada100_fec.o
obj-$(CONFIG_BCM6348_ETH) += bcm6348-eth.o
obj-$(CONFIG_BCM6368_ETH) += bcm6368-eth.o
+obj-$(CONFIG_BCMGENET) += bcmgenet.o
obj-$(CONFIG_DRIVER_AT91EMAC) += at91_emac.o
obj-$(CONFIG_DRIVER_AX88180) += ax88180.o
obj-$(CONFIG_BCM_SF2_ETH) += bcm-sf2-eth.o
diff --git a/drivers/net/bcmgenet.c b/drivers/net/bcmgenet.c
new file mode 100644
index 00000000000..8f4848aec68
--- /dev/null
+++ b/drivers/net/bcmgenet.c
@@ -0,0 +1,729 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019 Amit Singh Tomar <amittomer25@gmail.com>
+ *
+ * Driver for Broadcom GENETv5 Ethernet controller (as found on the RPi4)
+ * This driver is based on the Linux driver:
+ * drivers/net/ethernet/broadcom/genet/bcmgenet.c
+ * which is: Copyright (c) 2014-2017 Broadcom
+ *
+ * The hardware supports multiple queues (16 priority queues and one
+ * default queue), both for RX and TX. There are 256 DMA descriptors (both
+ * for TX and RX), and they live in MMIO registers. The hardware allows
+ * assigning descriptor ranges to queues, but we choose the most simple setup:
+ * All 256 descriptors are assigned to the default queue (#16).
+ * Also the Linux driver supports multiple generations of the MAC, whereas
+ * we only support v5, as used in the Raspberry Pi 4.
+ */
+
+#include <asm/io.h>
+#include <clk.h>
+#include <cpu_func.h>
+#include <dm.h>
+#include <fdt_support.h>
+#include <linux/err.h>
+#include <malloc.h>
+#include <miiphy.h>
+#include <net.h>
+#include <dm/of_access.h>
+#include <dm/ofnode.h>
+#include <linux/iopoll.h>
+#include <linux/sizes.h>
+#include <asm/dma-mapping.h>
+#include <wait_bit.h>
+
+/* Register definitions derived from Linux source */
+#define SYS_REV_CTRL 0x00
+
+#define SYS_PORT_CTRL 0x04
+#define PORT_MODE_EXT_GPHY 3
+
+#define GENET_SYS_OFF 0x0000
+#define SYS_RBUF_FLUSH_CTRL (GENET_SYS_OFF + 0x08)
+#define SYS_TBUF_FLUSH_CTRL (GENET_SYS_OFF + 0x0c)
+
+#define GENET_EXT_OFF 0x0080
+#define EXT_RGMII_OOB_CTRL (GENET_EXT_OFF + 0x0c)
+#define RGMII_LINK BIT(4)
+#define OOB_DISABLE BIT(5)
+#define RGMII_MODE_EN BIT(6)
+#define ID_MODE_DIS BIT(16)
+
+#define GENET_RBUF_OFF 0x0300
+#define RBUF_TBUF_SIZE_CTRL (GENET_RBUF_OFF + 0xb4)
+#define RBUF_CTRL (GENET_RBUF_OFF + 0x00)
+#define RBUF_ALIGN_2B BIT(1)
+
+#define GENET_UMAC_OFF 0x0800
+#define UMAC_MIB_CTRL (GENET_UMAC_OFF + 0x580)
+#define UMAC_MAX_FRAME_LEN (GENET_UMAC_OFF + 0x014)
+#define UMAC_MAC0 (GENET_UMAC_OFF + 0x00c)
+#define UMAC_MAC1 (GENET_UMAC_OFF + 0x010)
+#define UMAC_CMD (GENET_UMAC_OFF + 0x008)
+#define MDIO_CMD (GENET_UMAC_OFF + 0x614)
+#define UMAC_TX_FLUSH (GENET_UMAC_OFF + 0x334)
+#define MDIO_START_BUSY BIT(29)
+#define MDIO_READ_FAIL BIT(28)
+#define MDIO_RD (2 << 26)
+#define MDIO_WR BIT(26)
+#define MDIO_PMD_SHIFT 21
+#define MDIO_PMD_MASK 0x1f
+#define MDIO_REG_SHIFT 16
+#define MDIO_REG_MASK 0x1f
+
+#define CMD_TX_EN BIT(0)
+#define CMD_RX_EN BIT(1)
+#define UMAC_SPEED_10 0
+#define UMAC_SPEED_100 1
+#define UMAC_SPEED_1000 2
+#define UMAC_SPEED_2500 3
+#define CMD_SPEED_SHIFT 2
+#define CMD_SPEED_MASK 3
+#define CMD_SW_RESET BIT(13)
+#define CMD_LCL_LOOP_EN BIT(15)
+#define CMD_TX_EN BIT(0)
+#define CMD_RX_EN BIT(1)
+
+#define MIB_RESET_RX BIT(0)
+#define MIB_RESET_RUNT BIT(1)
+#define MIB_RESET_TX BIT(2)
+
+/* total number of Buffer Descriptors, same for Rx/Tx */
+#define TOTAL_DESCS 256
+#define RX_DESCS TOTAL_DESCS
+#define TX_DESCS TOTAL_DESCS
+
+#define DEFAULT_Q 0x10
+
+/* Body(1500) + EH_SIZE(14) + VLANTAG(4) + BRCMTAG(6) + FCS(4) = 1528.
+ * 1536 is multiple of 256 bytes
+ */
+#define ENET_BRCM_TAG_LEN 6
+#define ENET_PAD 8
+#define ENET_MAX_MTU_SIZE (ETH_DATA_LEN + ETH_HLEN + \
+ VLAN_HLEN + ENET_BRCM_TAG_LEN + \
+ ETH_FCS_LEN + ENET_PAD)
+
+/* Tx/Rx Dma Descriptor common bits */
+#define DMA_EN BIT(0)
+#define DMA_RING_BUF_EN_SHIFT 0x01
+#define DMA_RING_BUF_EN_MASK 0xffff
+#define DMA_BUFLENGTH_MASK 0x0fff
+#define DMA_BUFLENGTH_SHIFT 16
+#define DMA_RING_SIZE_SHIFT 16
+#define DMA_OWN 0x8000
+#define DMA_EOP 0x4000
+#define DMA_SOP 0x2000
+#define DMA_WRAP 0x1000
+#define DMA_MAX_BURST_LENGTH 0x8
+/* Tx specific DMA descriptor bits */
+#define DMA_TX_UNDERRUN 0x0200
+#define DMA_TX_APPEND_CRC 0x0040
+#define DMA_TX_OW_CRC 0x0020
+#define DMA_TX_DO_CSUM 0x0010
+#define DMA_TX_QTAG_SHIFT 7
+
+/* DMA rings size */
+#define DMA_RING_SIZE 0x40
+#define DMA_RINGS_SIZE (DMA_RING_SIZE * (DEFAULT_Q + 1))
+
+/* DMA descriptor */
+#define DMA_DESC_LENGTH_STATUS 0x00
+#define DMA_DESC_ADDRESS_LO 0x04
+#define DMA_DESC_ADDRESS_HI 0x08
+#define DMA_DESC_SIZE 12
+
+#define GENET_RX_OFF 0x2000
+#define GENET_RDMA_REG_OFF \
+ (GENET_RX_OFF + TOTAL_DESCS * DMA_DESC_SIZE)
+#define GENET_TX_OFF 0x4000
+#define GENET_TDMA_REG_OFF \
+ (GENET_TX_OFF + TOTAL_DESCS * DMA_DESC_SIZE)
+
+#define DMA_FC_THRESH_HI (RX_DESCS >> 4)
+#define DMA_FC_THRESH_LO 5
+#define DMA_FC_THRESH_VALUE ((DMA_FC_THRESH_LO << 16) | \
+ DMA_FC_THRESH_HI)
+
+#define DMA_XOFF_THRESHOLD_SHIFT 16
+
+#define TDMA_RING_REG_BASE \
+ (GENET_TDMA_REG_OFF + DEFAULT_Q * DMA_RING_SIZE)
+#define TDMA_READ_PTR (TDMA_RING_REG_BASE + 0x00)
+#define TDMA_CONS_INDEX (TDMA_RING_REG_BASE + 0x08)
+#define TDMA_PROD_INDEX (TDMA_RING_REG_BASE + 0x0c)
+#define DMA_RING_BUF_SIZE 0x10
+#define DMA_START_ADDR 0x14
+#define DMA_END_ADDR 0x1c
+#define DMA_MBUF_DONE_THRESH 0x24
+#define TDMA_FLOW_PERIOD (TDMA_RING_REG_BASE + 0x28)
+#define TDMA_WRITE_PTR (TDMA_RING_REG_BASE + 0x2c)
+
+#define RDMA_RING_REG_BASE \
+ (GENET_RDMA_REG_OFF + DEFAULT_Q * DMA_RING_SIZE)
+#define RDMA_WRITE_PTR (RDMA_RING_REG_BASE + 0x00)
+#define RDMA_PROD_INDEX (RDMA_RING_REG_BASE + 0x08)
+#define RDMA_CONS_INDEX (RDMA_RING_REG_BASE + 0x0c)
+#define RDMA_XON_XOFF_THRESH (RDMA_RING_REG_BASE + 0x28)
+#define RDMA_READ_PTR (RDMA_RING_REG_BASE + 0x2c)
+
+#define TDMA_REG_BASE (GENET_TDMA_REG_OFF + DMA_RINGS_SIZE)
+#define RDMA_REG_BASE (GENET_RDMA_REG_OFF + DMA_RINGS_SIZE)
+#define DMA_RING_CFG 0x00
+#define DMA_CTRL 0x04
+#define DMA_SCB_BURST_SIZE 0x0c
+
+#define RX_BUF_LENGTH 2048
+#define RX_TOTAL_BUFSIZE (RX_BUF_LENGTH * RX_DESCS)
+#define RX_BUF_OFFSET 2
+
+struct bcmgenet_eth_priv {
+ char rxbuffer[RX_TOTAL_BUFSIZE] __aligned(ARCH_DMA_MINALIGN);
+ void *mac_reg;
+ void *tx_desc_base;
+ void *rx_desc_base;
+ int tx_index;
+ int rx_index;
+ int c_index;
+ int phyaddr;
+ u32 interface;
+ u32 speed;
+ struct phy_device *phydev;
+ struct mii_dev *bus;
+};
+
+static void bcmgenet_umac_reset(struct bcmgenet_eth_priv *priv)
+{
+ u32 reg;
+
+ reg = readl(priv->mac_reg + SYS_RBUF_FLUSH_CTRL);
+ reg |= BIT(1);
+ writel(reg, (priv->mac_reg + SYS_RBUF_FLUSH_CTRL));
+ udelay(10);
+
+ reg &= ~BIT(1);
+ writel(reg, (priv->mac_reg + SYS_RBUF_FLUSH_CTRL));
+ udelay(10);
+
+ writel(0, (priv->mac_reg + SYS_RBUF_FLUSH_CTRL));
+ udelay(10);
+
+ writel(0, priv->mac_reg + UMAC_CMD);
+
+ writel(CMD_SW_RESET | CMD_LCL_LOOP_EN, priv->mac_reg + UMAC_CMD);
+ udelay(2);
+ writel(0, priv->mac_reg + UMAC_CMD);
+
+ /* clear tx/rx counter */
+ writel(MIB_RESET_RX | MIB_RESET_TX | MIB_RESET_RUNT,
+ priv->mac_reg + UMAC_MIB_CTRL);
+ writel(0, priv->mac_reg + UMAC_MIB_CTRL);
+
+ writel(ENET_MAX_MTU_SIZE, priv->mac_reg + UMAC_MAX_FRAME_LEN);
+
+ /* init rx registers, enable ip header optimization */
+ reg = readl(priv->mac_reg + RBUF_CTRL);
+ reg |= RBUF_ALIGN_2B;
+ writel(reg, (priv->mac_reg + RBUF_CTRL));
+
+ writel(1, (priv->mac_reg + RBUF_TBUF_SIZE_CTRL));
+}
+
+static int bcmgenet_gmac_write_hwaddr(struct udevice *dev)
+{
+ struct bcmgenet_eth_priv *priv = dev_get_priv(dev);
+ struct eth_pdata *pdata = dev_get_platdata(dev);
+ uchar *addr = pdata->enetaddr;
+ u32 reg;
+
+ reg = addr[0] << 24 | addr[1] << 16 | addr[2] << 8 | addr[3];
+ writel_relaxed(reg, priv->mac_reg + UMAC_MAC0);
+
+ reg = addr[4] << 8 | addr[5];
+ writel_relaxed(reg, priv->mac_reg + UMAC_MAC1);
+
+ return 0;
+}
+
+static void bcmgenet_disable_dma(struct bcmgenet_eth_priv *priv)
+{
+ clrbits_32(priv->mac_reg + TDMA_REG_BASE + DMA_CTRL, DMA_EN);
+ clrbits_32(priv->mac_reg + RDMA_REG_BASE + DMA_CTRL, DMA_EN);
+
+ writel(1, priv->mac_reg + UMAC_TX_FLUSH);
+ udelay(10);
+ writel(0, priv->mac_reg + UMAC_TX_FLUSH);
+}
+
+static void bcmgenet_enable_dma(struct bcmgenet_eth_priv *priv)
+{
+ u32 dma_ctrl = (1 << (DEFAULT_Q + DMA_RING_BUF_EN_SHIFT)) | DMA_EN;
+
+ writel(dma_ctrl, priv->mac_reg + TDMA_REG_BASE + DMA_CTRL);
+
+ setbits_32(priv->mac_reg + RDMA_REG_BASE + DMA_CTRL, dma_ctrl);
+}
+
+static int bcmgenet_gmac_eth_send(struct udevice *dev, void *packet, int length)
+{
+ struct bcmgenet_eth_priv *priv = dev_get_priv(dev);
+ void *desc_base = priv->tx_desc_base + priv->tx_index * DMA_DESC_SIZE;
+ u32 len_stat = length << DMA_BUFLENGTH_SHIFT;
+ ulong packet_aligned = rounddown((ulong)packet, ARCH_DMA_MINALIGN);
+ u32 prod_index, cons;
+ u32 tries = 100;
+
+ prod_index = readl(priv->mac_reg + TDMA_PROD_INDEX);
+
+ /* There is actually no reason for the rounding here, but the ARMv7
+ * implementation of flush_dcache_range() checks for aligned
+ * boundaries of the flushed range.
+ * Adjust them here to pass that check and avoid misleading messages.
+ */
+ flush_dcache_range(packet_aligned,
+ packet_aligned + roundup(length, ARCH_DMA_MINALIGN));
+
+ len_stat |= 0x3F << DMA_TX_QTAG_SHIFT;
+ len_stat |= DMA_TX_APPEND_CRC | DMA_SOP | DMA_EOP;
+
+ /* Set-up packet for transmission */
+ writel(lower_32_bits((ulong)packet), (desc_base + DMA_DESC_ADDRESS_LO));
+ writel(upper_32_bits((ulong)packet), (desc_base + DMA_DESC_ADDRESS_HI));
+ writel(len_stat, (desc_base + DMA_DESC_LENGTH_STATUS));
+
+ /* Increment index and start transmission */
+ if (++priv->tx_index >= TX_DESCS)
+ priv->tx_index = 0;
+
+ prod_index++;
+
+ /* Start Transmisson */
+ writel(prod_index, priv->mac_reg + TDMA_PROD_INDEX);
+
+ do {
+ cons = readl(priv->mac_reg + TDMA_CONS_INDEX);
+ } while ((cons & 0xffff) < prod_index && --tries);
+ if (!tries)
+ return -ETIMEDOUT;
+
+ return 0;
+}
+
+/* Check whether all cache lines affected by an invalidate are within
+ * the buffer, to make sure we don't accidentally lose unrelated dirty
+ * data stored nearby.
+ * Alignment of the buffer start address will be checked in the implementation
+ * of invalidate_dcache_range().
+ */
+static void invalidate_dcache_check(unsigned long addr, size_t size,
+ size_t buffer_size)
+{
+ size_t inval_size = roundup(size, ARCH_DMA_MINALIGN);
+
+ if (unlikely(inval_size > buffer_size))
+ printf("WARNING: Cache invalidate area exceeds buffer size\n");
+
+ invalidate_dcache_range(addr, addr + inval_size);
+}
+
+static int bcmgenet_gmac_eth_recv(struct udevice *dev,
+ int flags, uchar **packetp)
+{
+ struct bcmgenet_eth_priv *priv = dev_get_priv(dev);
+ void *desc_base = priv->rx_desc_base + priv->rx_index * DMA_DESC_SIZE;
+ u32 prod_index = readl(priv->mac_reg + RDMA_PROD_INDEX);
+ u32 length, addr;
+
+ if (prod_index == priv->c_index)
+ return -EAGAIN;
+
+ length = readl(desc_base + DMA_DESC_LENGTH_STATUS);
+ length = (length >> DMA_BUFLENGTH_SHIFT) & DMA_BUFLENGTH_MASK;
+ addr = readl(desc_base + DMA_DESC_ADDRESS_LO);
+
+ invalidate_dcache_check(addr, length, RX_BUF_LENGTH);
+
+ /* To cater for the IP header alignment the hardware does.
+ * This would actually not be needed if we don't program
+ * RBUF_ALIGN_2B
+ */
+ *packetp = (uchar *)(ulong)addr + RX_BUF_OFFSET;
+
+ return length - RX_BUF_OFFSET;
+}
+
+static int bcmgenet_gmac_free_pkt(struct udevice *dev, uchar *packet,
+ int length)
+{
+ struct bcmgenet_eth_priv *priv = dev_get_priv(dev);
+
+ /* Tell the MAC we have consumed that last receive buffer. */
+ priv->c_index = (priv->c_index + 1) & 0xFFFF;
+ writel(priv->c_index, priv->mac_reg + RDMA_CONS_INDEX);
+
+ /* Forward our descriptor pointer, wrapping around if needed. */
+ if (++priv->rx_index >= RX_DESCS)
+ priv->rx_index = 0;
+
+ return 0;
+}
+
+static void rx_descs_init(struct bcmgenet_eth_priv *priv)
+{
+ char *rxbuffs = &priv->rxbuffer[0];
+ u32 len_stat, i;
+ void *desc_base = priv->rx_desc_base;
+
+ priv->c_index = 0;
+
+ len_stat = (RX_BUF_LENGTH << DMA_BUFLENGTH_SHIFT) | DMA_OWN;
+
+ for (i = 0; i < RX_DESCS; i++) {
+ writel(lower_32_bits((uintptr_t)&rxbuffs[i * RX_BUF_LENGTH]),
+ desc_base + i * DMA_DESC_SIZE + DMA_DESC_ADDRESS_LO);
+ writel(upper_32_bits((uintptr_t)&rxbuffs[i * RX_BUF_LENGTH]),
+ desc_base + i * DMA_DESC_SIZE + DMA_DESC_ADDRESS_HI);
+ writel(len_stat,
+ desc_base + i * DMA_DESC_SIZE + DMA_DESC_LENGTH_STATUS);
+ }
+}
+
+static void rx_ring_init(struct bcmgenet_eth_priv *priv)
+{
+ writel(DMA_MAX_BURST_LENGTH,
+ priv->mac_reg + RDMA_REG_BASE + DMA_SCB_BURST_SIZE);
+
+ writel(0x0, priv->mac_reg + RDMA_RING_REG_BASE + DMA_START_ADDR);
+ writel(0x0, priv->mac_reg + RDMA_READ_PTR);
+ writel(0x0, priv->mac_reg + RDMA_WRITE_PTR);
+ writel(RX_DESCS * DMA_DESC_SIZE / 4 - 1,
+ priv->mac_reg + RDMA_RING_REG_BASE + DMA_END_ADDR);
+
+ writel(0x0, priv->mac_reg + RDMA_PROD_INDEX);
+ writel(0x0, priv->mac_reg + RDMA_CONS_INDEX);
+ writel((RX_DESCS << DMA_RING_SIZE_SHIFT) | RX_BUF_LENGTH,
+ priv->mac_reg + RDMA_RING_REG_BASE + DMA_RING_BUF_SIZE);
+ writel(DMA_FC_THRESH_VALUE, priv->mac_reg + RDMA_XON_XOFF_THRESH);
+ writel(1 << DEFAULT_Q, priv->mac_reg + RDMA_REG_BASE + DMA_RING_CFG);
+}
+
+static void tx_ring_init(struct bcmgenet_eth_priv *priv)
+{
+ writel(DMA_MAX_BURST_LENGTH,
+ priv->mac_reg + TDMA_REG_BASE + DMA_SCB_BURST_SIZE);
+
+ writel(0x0, priv->mac_reg + TDMA_RING_REG_BASE + DMA_START_ADDR);
+ writel(0x0, priv->mac_reg + TDMA_READ_PTR);
+ writel(0x0, priv->mac_reg + TDMA_WRITE_PTR);
+ writel(TX_DESCS * DMA_DESC_SIZE / 4 - 1,
+ priv->mac_reg + TDMA_RING_REG_BASE + DMA_END_ADDR);
+ writel(0x0, priv->mac_reg + TDMA_PROD_INDEX);
+ writel(0x0, priv->mac_reg + TDMA_CONS_INDEX);
+ writel(0x1, priv->mac_reg + TDMA_RING_REG_BASE + DMA_MBUF_DONE_THRESH);
+ writel(0x0, priv->mac_reg + TDMA_FLOW_PERIOD);
+ writel((TX_DESCS << DMA_RING_SIZE_SHIFT) | RX_BUF_LENGTH,
+ priv->mac_reg + TDMA_RING_REG_BASE + DMA_RING_BUF_SIZE);
+
+ writel(1 << DEFAULT_Q, priv->mac_reg + TDMA_REG_BASE + DMA_RING_CFG);
+}
+
+static int bcmgenet_adjust_link(struct bcmgenet_eth_priv *priv)
+{
+ struct phy_device *phy_dev = priv->phydev;
+ u32 speed;
+
+ switch (phy_dev->speed) {
+ case SPEED_1000:
+ speed = UMAC_SPEED_1000;
+ break;
+ case SPEED_100:
+ speed = UMAC_SPEED_100;
+ break;
+ case SPEED_10:
+ speed = UMAC_SPEED_10;
+ break;
+ default:
+ printf("bcmgenet: Unsupported PHY speed: %d\n", phy_dev->speed);
+ return -EINVAL;
+ }
+
+ clrsetbits_32(priv->mac_reg + EXT_RGMII_OOB_CTRL, OOB_DISABLE,
+ RGMII_LINK | RGMII_MODE_EN | ID_MODE_DIS);
+
+ writel(speed << CMD_SPEED_SHIFT, (priv->mac_reg + UMAC_CMD));
+
+ return 0;
+}
+
+static int bcmgenet_gmac_eth_start(struct udevice *dev)
+{
+ struct bcmgenet_eth_priv *priv = dev_get_priv(dev);
+ int ret;
+
+ priv->tx_desc_base = priv->mac_reg + GENET_TX_OFF;
+ priv->rx_desc_base = priv->mac_reg + GENET_RX_OFF;
+ priv->tx_index = 0x0;
+ priv->rx_index = 0x0;
+
+ bcmgenet_umac_reset(priv);
+
+ bcmgenet_gmac_write_hwaddr(dev);
+
+ /* Disable RX/TX DMA and flush TX queues */
+ bcmgenet_disable_dma(priv);
+
+ rx_ring_init(priv);
+ rx_descs_init(priv);
+
+ tx_ring_init(priv);
+
+ /* Enable RX/TX DMA */
+ bcmgenet_enable_dma(priv);
+
+ /* read PHY properties over the wire from generic PHY set-up */
+ ret = phy_startup(priv->phydev);
+ if (ret) {
+ printf("bcmgenet: PHY startup failed: %d\n", ret);
+ return ret;
+ }
+
+ /* Update MAC registers based on PHY property */
+ ret = bcmgenet_adjust_link(priv);
+ if (ret) {
+ printf("bcmgenet: adjust PHY link failed: %d\n", ret);
+ return ret;
+ }
+
+ /* Enable Rx/Tx */
+ setbits_32(priv->mac_reg + UMAC_CMD, CMD_TX_EN | CMD_RX_EN);
+
+ return 0;
+}
+
+static int bcmgenet_phy_init(struct bcmgenet_eth_priv *priv, void *dev)
+{
+ struct phy_device *phydev;
+ int ret;
+
+ phydev = phy_connect(priv->bus, priv->phyaddr, dev, priv->interface);
+ if (!phydev)
+ return -ENODEV;
+
+ phydev->supported &= PHY_GBIT_FEATURES;
+ if (priv->speed) {
+ ret = phy_set_supported(priv->phydev, priv->speed);
+ if (ret)
+ return ret;
+ }
+ phydev->advertising = phydev->supported;
+
+ phy_connect_dev(phydev, dev);
+
+ priv->phydev = phydev;
+ phy_config(priv->phydev);
+
+ return 0;
+}
+
+static void bcmgenet_mdio_start(struct bcmgenet_eth_priv *priv)
+{
+ setbits_32(priv->mac_reg + MDIO_CMD, MDIO_START_BUSY);
+}
+
+static int bcmgenet_mdio_write(struct mii_dev *bus, int addr, int devad,
+ int reg, u16 value)
+{
+ struct udevice *dev = bus->priv;
+ struct bcmgenet_eth_priv *priv = dev_get_priv(dev);
+ u32 val;
+
+ /* Prepare the read operation */
+ val = MDIO_WR | (addr << MDIO_PMD_SHIFT) |
+ (reg << MDIO_REG_SHIFT) | (0xffff & value);
+ writel_relaxed(val, priv->mac_reg + MDIO_CMD);
+
+ /* Start MDIO transaction */
+ bcmgenet_mdio_start(priv);
+
+ return wait_for_bit_32(priv->mac_reg + MDIO_CMD,
+ MDIO_START_BUSY, false, 20, true);
+}
+
+static int bcmgenet_mdio_read(struct mii_dev *bus, int addr, int devad, int reg)
+{
+ struct udevice *dev = bus->priv;
+ struct bcmgenet_eth_priv *priv = dev_get_priv(dev);
+ u32 val;
+ int ret;
+
+ /* Prepare the read operation */
+ val = MDIO_RD | (addr << MDIO_PMD_SHIFT) | (reg << MDIO_REG_SHIFT);
+ writel_relaxed(val, priv->mac_reg + MDIO_CMD);
+
+ /* Start MDIO transaction */
+ bcmgenet_mdio_start(priv);
+
+ ret = wait_for_bit_32(priv->mac_reg + MDIO_CMD,
+ MDIO_START_BUSY, false, 20, true);
+ if (ret)
+ return ret;
+
+ val = readl_relaxed(priv->mac_reg + MDIO_CMD);
+
+ return val & 0xffff;
+}
+
+static int bcmgenet_mdio_init(const char *name, struct udevice *priv)
+{
+ struct mii_dev *bus = mdio_alloc();
+
+ if (!bus) {
+ debug("Failed to allocate MDIO bus\n");
+ return -ENOMEM;
+ }
+
+ bus->read = bcmgenet_mdio_read;
+ bus->write = bcmgenet_mdio_write;
+ snprintf(bus->name, sizeof(bus->name), name);
+ bus->priv = (void *)priv;
+
+ return mdio_register(bus);
+}
+
+/* We only support RGMII (as used on the RPi4). */
+static int bcmgenet_interface_set(struct bcmgenet_eth_priv *priv)
+{
+ phy_interface_t phy_mode = priv->interface;
+
+ switch (phy_mode) {
+ case PHY_INTERFACE_MODE_RGMII:
+ case PHY_INTERFACE_MODE_RGMII_RXID:
+ writel(PORT_MODE_EXT_GPHY, priv->mac_reg + SYS_PORT_CTRL);
+ break;
+ default:
+ printf("unknown phy mode: %d\n", priv->interface);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int bcmgenet_eth_probe(struct udevice *dev)
+{
+ struct eth_pdata *pdata = dev_get_platdata(dev);
+ struct bcmgenet_eth_priv *priv = dev_get_priv(dev);
+ ofnode mdio_node;
+ const char *name;
+ u32 reg;
+ int ret;
+ u8 major;
+
+ priv->mac_reg = map_physmem(pdata->iobase, SZ_64K, MAP_NOCACHE);
+ priv->interface = pdata->phy_interface;
+ priv->speed = pdata->max_speed;
+
+ /* Read GENET HW version */
+ reg = readl_relaxed(priv->mac_reg + SYS_REV_CTRL);
+ major = (reg >> 24) & 0x0f;
+ if (major != 6) {
+ if (major == 5)
+ major = 4;
+ else if (major == 0)
+ major = 1;
+
+ printf("Unsupported GENETv%d.%d\n", major, (reg >> 16) & 0x0f);
+ return -ENODEV;
+ }
+
+ ret = bcmgenet_interface_set(priv);
+ if (ret)
+ return ret;
+
+ writel(0, priv->mac_reg + SYS_RBUF_FLUSH_CTRL);
+ udelay(10);
+ /* disable MAC while updating its registers */
+ writel(0, priv->mac_reg + UMAC_CMD);
+ /* issue soft reset with (rg)mii loopback to ensure a stable rxclk */
+ writel(CMD_SW_RESET | CMD_LCL_LOOP_EN, priv->mac_reg + UMAC_CMD);
+
+ mdio_node = dev_read_first_subnode(dev);
+ name = ofnode_get_name(mdio_node);
+
+ ret = bcmgenet_mdio_init(name, dev);
+ if (ret)
+ return ret;
+
+ priv->bus = miiphy_get_dev_by_name(name);
+
+ return bcmgenet_phy_init(priv, dev);
+}
+
+static void bcmgenet_gmac_eth_stop(struct udevice *dev)
+{
+ struct bcmgenet_eth_priv *priv = dev_get_priv(dev);
+
+ clrbits_32(priv->mac_reg + UMAC_CMD, CMD_TX_EN | CMD_RX_EN);
+
+ bcmgenet_disable_dma(priv);
+}
+
+static const struct eth_ops bcmgenet_gmac_eth_ops = {
+ .start = bcmgenet_gmac_eth_start,
+ .write_hwaddr = bcmgenet_gmac_write_hwaddr,
+ .send = bcmgenet_gmac_eth_send,
+ .recv = bcmgenet_gmac_eth_recv,
+ .free_pkt = bcmgenet_gmac_free_pkt,
+ .stop = bcmgenet_gmac_eth_stop,
+};
+
+static int bcmgenet_eth_ofdata_to_platdata(struct udevice *dev)
+{
+ struct eth_pdata *pdata = dev_get_platdata(dev);
+ struct bcmgenet_eth_priv *priv = dev_get_priv(dev);
+ struct ofnode_phandle_args phy_node;
+ const char *phy_mode;
+ int ret;
+
+ pdata->iobase = dev_read_addr(dev);
+
+ /* Get phy mode from DT */
+ pdata->phy_interface = -1;
+ phy_mode = dev_read_string(dev, "phy-mode");
+ if (phy_mode)
+ pdata->phy_interface = phy_get_interface_by_name(phy_mode);
+ if (pdata->phy_interface == -1) {
+ debug("%s: Invalid PHY interface '%s'\n", __func__, phy_mode);
+ return -EINVAL;
+ }
+
+ ret = dev_read_phandle_with_args(dev, "phy-handle", NULL, 0, 0,
+ &phy_node);
+ if (!ret) {
+ ofnode_read_s32(phy_node.node, "reg", &priv->phyaddr);
+ ofnode_read_s32(phy_node.node, "max-speed", &pdata->max_speed);
+ }
+
+ return 0;
+}
+
+/* The BCM2711 implementation has a limited burst length compared to a generic
+ * GENETv5 version, but we go with that shorter value (8) in both cases, for
+ * the sake of simplicity.
+ */
+static const struct udevice_id bcmgenet_eth_ids[] = {
+ {.compatible = "brcm,genet-v5"},
+ {.compatible = "brcm,bcm2711-genet-v5"},
+ {}
+};
+
+U_BOOT_DRIVER(eth_bcmgenet) = {
+ .name = "eth_bcmgenet",
+ .id = UCLASS_ETH,
+ .of_match = bcmgenet_eth_ids,
+ .ofdata_to_platdata = bcmgenet_eth_ofdata_to_platdata,
+ .probe = bcmgenet_eth_probe,
+ .ops = &bcmgenet_gmac_eth_ops,
+ .priv_auto_alloc_size = sizeof(struct bcmgenet_eth_priv),
+ .platdata_auto_alloc_size = sizeof(struct eth_pdata),
+ .flags = DM_FLAG_ALLOC_PRIV_DMA,
+};
diff --git a/drivers/pinctrl/intel/pinctrl.c b/drivers/pinctrl/intel/pinctrl.c
index 4875a3b0b52..5bf5d8b0e24 100644
--- a/drivers/pinctrl/intel/pinctrl.c
+++ b/drivers/pinctrl/intel/pinctrl.c
@@ -25,7 +25,7 @@
#include <asm/intel_pinctrl.h>
#include <asm/intel_pinctrl_defs.h>
#include <asm/arch/gpio.h>
-#include <asm/arch/itss.h>
+#include <asm/itss.h>
#include <dm/device-internal.h>
#include <dt-bindings/gpio/gpio.h>
diff --git a/drivers/rtc/pcf8563.c b/drivers/rtc/pcf8563.c
index a839d6cc98b..84f2b231c23 100644
--- a/drivers/rtc/pcf8563.c
+++ b/drivers/rtc/pcf8563.c
@@ -12,9 +12,11 @@
#include <common.h>
#include <command.h>
+#include <dm.h>
#include <rtc.h>
#include <i2c.h>
+#if !CONFIG_IS_ENABLED(DM_RTC)
static uchar rtc_read (uchar reg);
static void rtc_write (uchar reg, uchar val);
@@ -115,3 +117,108 @@ static void rtc_write (uchar reg, uchar val)
{
i2c_reg_write (CONFIG_SYS_I2C_RTC_ADDR, reg, val);
}
+#else
+static int pcf8563_rtc_get(struct udevice *dev, struct rtc_time *tmp)
+{
+ int rel = 0;
+ uchar sec, min, hour, mday, wday, mon_cent, year;
+
+ sec = dm_i2c_reg_read(dev, 0x02);
+ min = dm_i2c_reg_read(dev, 0x03);
+ hour = dm_i2c_reg_read(dev, 0x04);
+ mday = dm_i2c_reg_read(dev, 0x05);
+ wday = dm_i2c_reg_read(dev, 0x06);
+ mon_cent = dm_i2c_reg_read(dev, 0x07);
+ year = dm_i2c_reg_read(dev, 0x08);
+
+ debug("Get RTC year: %02x mon/cent: %02x mday: %02x wday: %02x ",
+ year, mon_cent, mday, wday);
+ debug("hr: %02x min: %02x sec: %02x\n",
+ hour, min, sec);
+ debug("Alarms: wday: %02x day: %02x hour: %02x min: %02x\n",
+ dm_i2c_reg_read(dev, 0x0C),
+ dm_i2c_reg_read(dev, 0x0B),
+ dm_i2c_reg_read(dev, 0x0A),
+ dm_i2c_reg_read(dev, 0x09));
+
+ if (sec & 0x80) {
+ puts("### Warning: RTC Low Voltage - date/time not reliable\n");
+ rel = -1;
+ }
+
+ tmp->tm_sec = bcd2bin(sec & 0x7F);
+ tmp->tm_min = bcd2bin(min & 0x7F);
+ tmp->tm_hour = bcd2bin(hour & 0x3F);
+ tmp->tm_mday = bcd2bin(mday & 0x3F);
+ tmp->tm_mon = bcd2bin(mon_cent & 0x1F);
+ tmp->tm_year = bcd2bin(year) + ((mon_cent & 0x80) ? 1900 : 2000);
+ tmp->tm_wday = bcd2bin(wday & 0x07);
+ tmp->tm_yday = 0;
+ tmp->tm_isdst = 0;
+
+ debug("Get DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
+ tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
+ tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
+
+ return rel;
+}
+
+static int pcf8563_rtc_set(struct udevice *dev, const struct rtc_time *tmp)
+{
+ uchar century;
+
+ debug("Set DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
+ tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
+ tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
+
+ dm_i2c_reg_write(dev, 0x08, bin2bcd(tmp->tm_year % 100));
+
+ century = (tmp->tm_year >= 2000) ? 0 : 0x80;
+ dm_i2c_reg_write(dev, 0x07, bin2bcd(tmp->tm_mon) | century);
+
+ dm_i2c_reg_write(dev, 0x06, bin2bcd(tmp->tm_wday));
+ dm_i2c_reg_write(dev, 0x05, bin2bcd(tmp->tm_mday));
+ dm_i2c_reg_write(dev, 0x04, bin2bcd(tmp->tm_hour));
+ dm_i2c_reg_write(dev, 0x03, bin2bcd(tmp->tm_min));
+ dm_i2c_reg_write(dev, 0x02, bin2bcd(tmp->tm_sec));
+
+ return 0;
+}
+
+static int pcf8563_rtc_reset(struct udevice *dev)
+{
+ /* clear all control & status registers */
+ dm_i2c_reg_write(dev, 0x00, 0x00);
+ dm_i2c_reg_write(dev, 0x01, 0x00);
+ dm_i2c_reg_write(dev, 0x0D, 0x00);
+
+ /* clear Voltage Low bit */
+ dm_i2c_reg_write(dev, 0x02, dm_i2c_reg_read(dev, 0x02) & 0x7F);
+
+ /* reset all alarms */
+ dm_i2c_reg_write(dev, 0x09, 0x00);
+ dm_i2c_reg_write(dev, 0x0A, 0x00);
+ dm_i2c_reg_write(dev, 0x0B, 0x00);
+ dm_i2c_reg_write(dev, 0x0C, 0x00);
+
+ return 0;
+}
+
+static const struct rtc_ops pcf8563_rtc_ops = {
+ .get = pcf8563_rtc_get,
+ .set = pcf8563_rtc_set,
+ .reset = pcf8563_rtc_reset,
+};
+
+static const struct udevice_id pcf8563_rtc_ids[] = {
+ { .compatible = "nxp,pcf8563" },
+ { }
+};
+
+U_BOOT_DRIVER(rtc_pcf8563) = {
+ .name = "rtc-pcf8563",
+ .id = UCLASS_RTC,
+ .of_match = pcf8563_rtc_ids,
+ .ops = &pcf8563_rtc_ops,
+};
+#endif
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index bd95f70b61c..cd2e098883f 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -542,6 +542,17 @@ config BCM6345_SERIAL
help
Select this to enable UART on BCM6345 SoCs.
+config COREBOOT_SERIAL
+ bool "Coreboot UART support"
+ depends on DM_SERIAL
+ default y if SYS_COREBOOT
+ select SYS_NS16550
+ help
+ Select this to enable a ns16550-style UART where the platform data
+ comes from the coreboot 'sysinfo' tables. This allows U-Boot to have
+ a serial console on any platform without needing to change the
+ device tree, etc.
+
config FSL_LINFLEXUART
bool "Freescale Linflex UART support"
depends on DM_SERIAL
@@ -601,6 +612,27 @@ config SYS_NS16550
be used. It can be a constant or a function to get clock, eg,
get_serial_clock().
+config NS16550_DYNAMIC
+ bool "Allow NS16550 to be configured at runtime"
+ default y if SYS_COREBOOT || SYS_SLIMBOOTLOADER
+ help
+ Enable this option to allow device-tree control of the driver.
+
+ Normally this driver is controlled by the following options:
+
+ CONFIG_SYS_NS16550_PORT_MAPPED - indicates that port I/O is used for
+ access. If not enabled, then the UART is memory-mapped.
+ CONFIG_SYS_NS16550_MEM32 - if memory-mapped, indicates that 32-bit
+ access should be used (instead of 8-bit)
+ CONFIG_SYS_NS16550_REG_SIZE - indicates register width and also
+ endianness. If positive, big-endian access is used. If negative,
+ little-endian is used.
+
+ It is not a good practice for a driver to be statically configured,
+ since it prevents the same driver being used for different types of
+ UARTs in a system. This option avoids this problem at the cost of a
+ slightly increased code size.
+
config INTEL_MID_SERIAL
bool "Intel MID platform UART support"
depends on DM_SERIAL && OF_CONTROL
diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
index 06ee30697de..76b1811510d 100644
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -35,6 +35,7 @@ obj-$(CONFIG_AR933X_UART) += serial_ar933x.o
obj-$(CONFIG_ARM_DCC) += arm_dcc.o
obj-$(CONFIG_ATMEL_USART) += atmel_usart.o
obj-$(CONFIG_BCM6345_SERIAL) += serial_bcm6345.o
+obj-$(CONFIG_COREBOOT_SERIAL) += serial_coreboot.o
obj-$(CONFIG_EFI_APP) += serial_efi.o
obj-$(CONFIG_LPC32XX_HSUART) += lpc32xx_hsuart.o
obj-$(CONFIG_MCFUART) += mcfuart.o
diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c
index 9851663dc54..31f6cfe421c 100644
--- a/drivers/serial/ns16550.c
+++ b/drivers/serial/ns16550.c
@@ -93,19 +93,79 @@ static inline int serial_in_shift(void *addr, int shift)
#define CONFIG_SYS_NS16550_CLK 0
#endif
+/*
+ * Use this #ifdef for now since many platforms don't define in(), out(),
+ * out_le32(), etc. but we don't have #defines to indicate this.
+ *
+ * TODO(sjg@chromium.org): Add CONFIG options to indicate what I/O is available
+ * on a platform
+ */
+#ifdef CONFIG_NS16550_DYNAMIC
+static void serial_out_dynamic(struct ns16550_platdata *plat, u8 *addr,
+ int value)
+{
+ if (plat->flags & NS16550_FLAG_IO) {
+ outb(value, addr);
+ } else if (plat->reg_width == 4) {
+ if (plat->flags & NS16550_FLAG_ENDIAN) {
+ if (plat->flags & NS16550_FLAG_BE)
+ out_be32(addr, value);
+ else
+ out_le32(addr, value);
+ } else {
+ writel(value, addr);
+ }
+ } else if (plat->flags & NS16550_FLAG_BE) {
+ writeb(value, addr + (1 << plat->reg_shift) - 1);
+ } else {
+ writeb(value, addr);
+ }
+}
+
+static int serial_in_dynamic(struct ns16550_platdata *plat, u8 *addr)
+{
+ if (plat->flags & NS16550_FLAG_IO) {
+ return inb(addr);
+ } else if (plat->reg_width == 4) {
+ if (plat->flags & NS16550_FLAG_ENDIAN) {
+ if (plat->flags & NS16550_FLAG_BE)
+ return in_be32(addr);
+ else
+ return in_le32(addr);
+ } else {
+ return readl(addr);
+ }
+ } else if (plat->flags & NS16550_FLAG_BE) {
+ return readb(addr + (1 << plat->reg_shift) - 1);
+ } else {
+ return readb(addr);
+ }
+}
+#else
+static inline void serial_out_dynamic(struct ns16550_platdata *plat, u8 *addr,
+ int value)
+{
+}
+
+static inline int serial_in_dynamic(struct ns16550_platdata *plat, u8 *addr)
+{
+ return 0;
+}
+
+#endif /* CONFIG_NS16550_DYNAMIC */
+
static void ns16550_writeb(NS16550_t port, int offset, int value)
{
struct ns16550_platdata *plat = port->plat;
unsigned char *addr;
offset *= 1 << plat->reg_shift;
- addr = (unsigned char *)plat->base + offset;
+ addr = (unsigned char *)plat->base + offset + plat->reg_offset;
- /*
- * As far as we know it doesn't make sense to support selection of
- * these options at run-time, so use the existing CONFIG options.
- */
- serial_out_shift(addr + plat->reg_offset, plat->reg_shift, value);
+ if (IS_ENABLED(CONFIG_NS16550_DYNAMIC))
+ serial_out_dynamic(plat, addr, value);
+ else
+ serial_out_shift(addr, plat->reg_shift, value);
}
static int ns16550_readb(NS16550_t port, int offset)
@@ -114,9 +174,12 @@ static int ns16550_readb(NS16550_t port, int offset)
unsigned char *addr;
offset *= 1 << plat->reg_shift;
- addr = (unsigned char *)plat->base + offset;
+ addr = (unsigned char *)plat->base + offset + plat->reg_offset;
- return serial_in_shift(addr + plat->reg_offset, plat->reg_shift);
+ if (IS_ENABLED(CONFIG_NS16550_DYNAMIC))
+ return serial_in_dynamic(plat, addr);
+ else
+ return serial_in_shift(addr, plat->reg_shift);
}
static u32 ns16550_getfcr(NS16550_t port)
diff --git a/drivers/serial/serial_coreboot.c b/drivers/serial/serial_coreboot.c
new file mode 100644
index 00000000000..ccab347514c
--- /dev/null
+++ b/drivers/serial/serial_coreboot.c
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * UART support for U-Boot when launched from Coreboot
+ *
+ * Copyright 2019 Google LLC
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <ns16550.h>
+#include <serial.h>
+#include <asm/arch/sysinfo.h>
+
+static int coreboot_ofdata_to_platdata(struct udevice *dev)
+{
+ struct ns16550_platdata *plat = dev_get_platdata(dev);
+ struct cb_serial *cb_info = lib_sysinfo.serial;
+
+ plat->base = cb_info->baseaddr;
+ plat->reg_shift = cb_info->regwidth == 4 ? 2 : 0;
+ plat->reg_width = cb_info->regwidth;
+ plat->clock = cb_info->input_hertz;
+ plat->fcr = UART_FCR_DEFVAL;
+ plat->flags = 0;
+ if (cb_info->type == CB_SERIAL_TYPE_IO_MAPPED)
+ plat->flags |= NS16550_FLAG_IO;
+
+ return 0;
+}
+
+static const struct udevice_id coreboot_serial_ids[] = {
+ { .compatible = "coreboot-serial" },
+ { },
+};
+
+U_BOOT_DRIVER(coreboot_uart) = {
+ .name = "coreboot_uart",
+ .id = UCLASS_SERIAL,
+ .of_match = coreboot_serial_ids,
+ .priv_auto_alloc_size = sizeof(struct NS16550),
+ .platdata_auto_alloc_size = sizeof(struct ns16550_platdata),
+ .ofdata_to_platdata = coreboot_ofdata_to_platdata,
+ .probe = ns16550_serial_probe,
+ .ops = &ns16550_serial_ops,
+ .flags = DM_FLAG_PRE_RELOC,
+};
diff --git a/drivers/spi/ich.c b/drivers/spi/ich.c
index 133b25b72e4..a9d7715a556 100644
--- a/drivers/spi/ich.c
+++ b/drivers/spi/ich.c
@@ -562,16 +562,8 @@ static int ich_spi_exec_op_hwseq(struct spi_slave *slave,
return 0; /* ignore */
case SPINOR_OP_BE_4K:
cycle = HSFSTS_CYCLE_4K_ERASE;
- while (len) {
- uint xfer_len = 0x1000;
-
- ret = exec_sync_hwseq_xfer(regs, cycle, offset, 0);
- if (ret)
- return ret;
- offset += xfer_len;
- len -= xfer_len;
- }
- return 0;
+ ret = exec_sync_hwseq_xfer(regs, cycle, offset, 0);
+ return ret;
default:
debug("Unknown cycle %x\n", op->cmd.opcode);
return -EINVAL;
diff --git a/drivers/usb/gadget/dwc2_udc_otg.c b/drivers/usb/gadget/dwc2_udc_otg.c
index 35f4147840e..49f342eb211 100644
--- a/drivers/usb/gadget/dwc2_udc_otg.c
+++ b/drivers/usb/gadget/dwc2_udc_otg.c
@@ -31,6 +31,7 @@
#include <linux/usb/otg.h>
#include <linux/usb/gadget.h>
+#include <phys2bus.h>
#include <asm/byteorder.h>
#include <asm/unaligned.h>
#include <asm/io.h>
@@ -1213,6 +1214,7 @@ static int dwc2_udc_otg_remove(struct udevice *dev)
static const struct udevice_id dwc2_udc_otg_ids[] = {
{ .compatible = "snps,dwc2" },
+ { .compatible = "brcm,bcm2835-usb" },
{ .compatible = "st,stm32mp1-hsotg",
.data = (ulong)dwc2_set_stm32mp1_hsotg_params },
{},
diff --git a/drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c b/drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c
index b68c2b2686c..d4fbb75cc9b 100644
--- a/drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c
+++ b/drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c
@@ -31,7 +31,7 @@ static inline void dwc2_udc_ep0_zlp(struct dwc2_udc *dev)
{
u32 ep_ctrl;
- writel(usb_ctrl_dma_addr, &reg->in_endp[EP0_CON].diepdma);
+ writel(phys_to_bus((unsigned long)usb_ctrl_dma_addr), &reg->in_endp[EP0_CON].diepdma);
writel(DIEPT_SIZ_PKT_CNT(1), &reg->in_endp[EP0_CON].dieptsiz);
ep_ctrl = readl(&reg->in_endp[EP0_CON].diepctl);
@@ -52,7 +52,7 @@ static void dwc2_udc_pre_setup(void)
writel(DOEPT_SIZ_PKT_CNT(1) | sizeof(struct usb_ctrlrequest),
&reg->out_endp[EP0_CON].doeptsiz);
- writel(usb_ctrl_dma_addr, &reg->out_endp[EP0_CON].doepdma);
+ writel(phys_to_bus((unsigned long)usb_ctrl_dma_addr), &reg->out_endp[EP0_CON].doepdma);
ep_ctrl = readl(&reg->out_endp[EP0_CON].doepctl);
writel(ep_ctrl|DEPCTL_EPENA, &reg->out_endp[EP0_CON].doepctl);
@@ -78,7 +78,7 @@ static inline void dwc2_ep0_complete_out(void)
writel(DOEPT_SIZ_PKT_CNT(1) | sizeof(struct usb_ctrlrequest),
&reg->out_endp[EP0_CON].doeptsiz);
- writel(usb_ctrl_dma_addr, &reg->out_endp[EP0_CON].doepdma);
+ writel(phys_to_bus((unsigned long)usb_ctrl_dma_addr), &reg->out_endp[EP0_CON].doepdma);
ep_ctrl = readl(&reg->out_endp[EP0_CON].doepctl);
writel(ep_ctrl|DEPCTL_EPENA|DEPCTL_CNAK,
@@ -116,7 +116,7 @@ static int setdma_rx(struct dwc2_ep *ep, struct dwc2_request *req)
(unsigned long) ep->dma_buf +
ROUND(ep->len, CONFIG_SYS_CACHELINE_SIZE));
- writel((unsigned long) ep->dma_buf, &reg->out_endp[ep_num].doepdma);
+ writel(phys_to_bus((unsigned long)ep->dma_buf), &reg->out_endp[ep_num].doepdma);
writel(DOEPT_SIZ_PKT_CNT(pktcnt) | DOEPT_SIZ_XFER_SIZE(length),
&reg->out_endp[ep_num].doeptsiz);
writel(DEPCTL_EPENA|DEPCTL_CNAK|ctrl, &reg->out_endp[ep_num].doepctl);
@@ -164,7 +164,7 @@ static int setdma_tx(struct dwc2_ep *ep, struct dwc2_request *req)
while (readl(&reg->grstctl) & TX_FIFO_FLUSH)
;
- writel((unsigned long) ep->dma_buf, &reg->in_endp[ep_num].diepdma);
+ writel(phys_to_bus((unsigned long)ep->dma_buf), &reg->in_endp[ep_num].diepdma);
writel(DIEPT_SIZ_PKT_CNT(pktcnt) | DIEPT_SIZ_XFER_SIZE(length),
&reg->in_endp[ep_num].dieptsiz);
@@ -924,7 +924,7 @@ static int dwc2_udc_get_status(struct dwc2_udc *dev,
(unsigned long) usb_ctrl +
ROUND(sizeof(g_status), CONFIG_SYS_CACHELINE_SIZE));
- writel(usb_ctrl_dma_addr, &reg->in_endp[EP0_CON].diepdma);
+ writel(phys_to_bus(usb_ctrl_dma_addr), &reg->in_endp[EP0_CON].diepdma);
writel(DIEPT_SIZ_PKT_CNT(1) | DIEPT_SIZ_XFER_SIZE(2),
&reg->in_endp[EP0_CON].dieptsiz);
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 50ab3650ee9..4c933697022 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -38,6 +38,7 @@ config BACKLIGHT_GPIO
config VIDEO_BPP8
bool "Support 8-bit-per-pixel displays"
depends on DM_VIDEO
+ default y
help
Support drawing text and bitmaps onto a 8-bit-per-pixel display.
Enabling this will include code to support this display. Without
@@ -47,6 +48,7 @@ config VIDEO_BPP8
config VIDEO_BPP16
bool "Support 16-bit-per-pixel displays"
depends on DM_VIDEO
+ default y
help
Support drawing text and bitmaps onto a 16-bit-per-pixel display.
Enabling this will include code to support this display. Without
@@ -56,7 +58,7 @@ config VIDEO_BPP16
config VIDEO_BPP32
bool "Support 32-bit-per-pixel displays"
depends on DM_VIDEO
- default y if X86
+ default y
help
Support drawing text and bitmaps onto a 32-bit-per-pixel display.
Enabling this will include code to support this display. Without
@@ -66,6 +68,7 @@ config VIDEO_BPP32
config VIDEO_ANSI
bool "Support ANSI escape sequences in video console"
depends on DM_VIDEO
+ default y
help
Enable ANSI escape sequence decoding for a more fully functional
console.
diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c
index 284cfbb2a89..5199d914edd 100644
--- a/drivers/watchdog/omap_wdt.c
+++ b/drivers/watchdog/omap_wdt.c
@@ -150,24 +150,24 @@ static int omap3_wdt_reset(struct udevice *dev)
{
struct omap3_wdt_priv *priv = dev_get_priv(dev);
-/*
- * Somebody just triggered watchdog reset and write to WTGR register
- * is in progress. It is resetting right now, no need to trigger it
- * again
- */
+ /*
+ * Somebody just triggered watchdog reset and write to WTGR register
+ * is in progress. It is resetting right now, no need to trigger it
+ * again
+ */
if ((readl(&priv->regs->wdtwwps)) & WDT_WWPS_PEND_WTGR)
return 0;
priv->wdt_trgr_pattern = ~(priv->wdt_trgr_pattern);
writel(priv->wdt_trgr_pattern, &priv->regs->wdtwtgr);
-/*
- * Don't wait for posted write to complete, i.e. don't check
- * WDT_WWPS_PEND_WTGR bit in WWPS register. There is no writes to
- * WTGR register outside of this func, and if entering it
- * we see WDT_WWPS_PEND_WTGR bit set, it means watchdog reset
- * was just triggered. This prevents us from wasting time in busy
- * polling of WDT_WWPS_PEND_WTGR bit.
- */
+ /*
+ * Don't wait for posted write to complete, i.e. don't check
+ * WDT_WWPS_PEND_WTGR bit in WWPS register. There is no writes to
+ * WTGR register outside of this func, and if entering it
+ * we see WDT_WWPS_PEND_WTGR bit set, it means watchdog reset
+ * was just triggered. This prevents us from wasting time in busy
+ * polling of WDT_WWPS_PEND_WTGR bit.
+ */
return 0;
}
@@ -175,7 +175,7 @@ static int omap3_wdt_stop(struct udevice *dev)
{
struct omap3_wdt_priv *priv = dev_get_priv(dev);
-/* disable watchdog */
+ /* disable watchdog */
writel(0xAAAA, &priv->regs->wdtwspr);
while (readl(&priv->regs->wdtwwps) != 0x0)
;
@@ -188,29 +188,29 @@ static int omap3_wdt_stop(struct udevice *dev)
static int omap3_wdt_start(struct udevice *dev, u64 timeout_ms, ulong flags)
{
struct omap3_wdt_priv *priv = dev_get_priv(dev);
- u32 pre_margin = GET_WLDR_VAL(timeout_ms);
-/*
- * Make sure the watchdog is disabled. This is unfortunately required
- * because writing to various registers with the watchdog running has no
- * effect.
- */
+ u32 pre_margin = GET_WLDR_VAL(timeout_ms / 1000);
+ /*
+ * Make sure the watchdog is disabled. This is unfortunately required
+ * because writing to various registers with the watchdog running has
+ * no effect.
+ */
omap3_wdt_stop(dev);
-/* initialize prescaler */
+ /* initialize prescaler */
while (readl(&priv->regs->wdtwwps) & WDT_WWPS_PEND_WCLR)
;
writel(WDT_WCLR_PRE | (PTV << WDT_WCLR_PTV_OFF), &priv->regs->wdtwclr);
while (readl(&priv->regs->wdtwwps) & WDT_WWPS_PEND_WCLR)
;
-/* just count up at 32 KHz */
+ /* just count up at 32 KHz */
while (readl(&priv->regs->wdtwwps) & WDT_WWPS_PEND_WLDR)
;
writel(pre_margin, &priv->regs->wdtwldr);
while (readl(&priv->regs->wdtwwps) & WDT_WWPS_PEND_WLDR)
;
-/* Sequence to enable the watchdog */
+ /* Sequence to enable the watchdog */
writel(0xBBBB, &priv->regs->wdtwspr);
while ((readl(&priv->regs->wdtwwps)) & WDT_WWPS_PEND_WSPR)
;
@@ -219,6 +219,16 @@ static int omap3_wdt_start(struct udevice *dev, u64 timeout_ms, ulong flags)
while ((readl(&priv->regs->wdtwwps)) & WDT_WWPS_PEND_WSPR)
;
+ /* Trigger the watchdog to actually reload the counter. */
+ while ((readl(&priv->regs->wdtwwps)) & WDT_WWPS_PEND_WTGR)
+ ;
+
+ priv->wdt_trgr_pattern = ~(priv->wdt_trgr_pattern);
+ writel(priv->wdt_trgr_pattern, &priv->regs->wdtwtgr);
+
+ while ((readl(&priv->regs->wdtwwps)) & WDT_WWPS_PEND_WTGR)
+ ;
+
return 0;
}
generated by cgit v1.2.3 (git 2.0.4) at 2025-10-24 07:45:17 +0000