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-rw-r--r--drivers/misc/Makefile5
-rw-r--r--drivers/misc/i2c_eeprom.c51
-rw-r--r--drivers/misc/i2c_eeprom_emul.c168
-rw-r--r--drivers/misc/mxc_ocotp.c2
-rw-r--r--drivers/misc/mxs_ocotp.c14
-rw-r--r--drivers/misc/smsc_lpc47m.c33
6 files changed, 267 insertions, 6 deletions
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 2f2e48f..a34972d 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -15,11 +15,16 @@ obj-$(CONFIG_CROS_EC_SANDBOX) += cros_ec_sandbox.o
obj-$(CONFIG_CROS_EC_SPI) += cros_ec_spi.o
obj-$(CONFIG_FSL_IIM) += fsl_iim.o
obj-$(CONFIG_GPIO_LED) += gpio_led.o
+obj-$(CONFIG_I2C_EEPROM) += i2c_eeprom.o
obj-$(CONFIG_FSL_MC9SDZ60) += mc9sdz60.o
obj-$(CONFIG_MXC_OCOTP) += mxc_ocotp.o
obj-$(CONFIG_MXS_OCOTP) += mxs_ocotp.o
obj-$(CONFIG_NS87308) += ns87308.o
obj-$(CONFIG_PDSP188x) += pdsp188x.o
+ifdef CONFIG_DM_I2C
+obj-$(CONFIG_SANDBOX) += i2c_eeprom_emul.o
+endif
+obj-$(CONFIG_SMSC_LPC47M) += smsc_lpc47m.o
obj-$(CONFIG_STATUS_LED) += status_led.o
obj-$(CONFIG_TWL4030_LED) += twl4030_led.o
obj-$(CONFIG_FSL_IFC) += fsl_ifc.o
diff --git a/drivers/misc/i2c_eeprom.c b/drivers/misc/i2c_eeprom.c
new file mode 100644
index 0000000..d0548ec
--- /dev/null
+++ b/drivers/misc/i2c_eeprom.c
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2014 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <i2c.h>
+#include <i2c_eeprom.h>
+
+static int i2c_eeprom_read(struct udevice *dev, int offset, uint8_t *buf,
+ int size)
+{
+ return -ENODEV;
+}
+
+static int i2c_eeprom_write(struct udevice *dev, int offset,
+ const uint8_t *buf, int size)
+{
+ return -ENODEV;
+}
+
+struct i2c_eeprom_ops i2c_eeprom_std_ops = {
+ .read = i2c_eeprom_read,
+ .write = i2c_eeprom_write,
+};
+
+int i2c_eeprom_std_probe(struct udevice *dev)
+{
+ return 0;
+}
+
+static const struct udevice_id i2c_eeprom_std_ids[] = {
+ { .compatible = "i2c-eeprom" },
+ { }
+};
+
+U_BOOT_DRIVER(i2c_eeprom_std) = {
+ .name = "i2c_eeprom",
+ .id = UCLASS_I2C_EEPROM,
+ .of_match = i2c_eeprom_std_ids,
+ .probe = i2c_eeprom_std_probe,
+ .priv_auto_alloc_size = sizeof(struct i2c_eeprom),
+ .ops = &i2c_eeprom_std_ops,
+};
+
+UCLASS_DRIVER(i2c_eeprom) = {
+ .id = UCLASS_I2C_EEPROM,
+ .name = "i2c_eeprom",
+};
diff --git a/drivers/misc/i2c_eeprom_emul.c b/drivers/misc/i2c_eeprom_emul.c
new file mode 100644
index 0000000..7343445
--- /dev/null
+++ b/drivers/misc/i2c_eeprom_emul.c
@@ -0,0 +1,168 @@
+/*
+ * Simulate an I2C eeprom
+ *
+ * Copyright (c) 2014 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <fdtdec.h>
+#include <i2c.h>
+#include <malloc.h>
+#include <asm/test.h>
+
+#ifdef DEBUG
+#define debug_buffer print_buffer
+#else
+#define debug_buffer(x, ...)
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+struct sandbox_i2c_flash_plat_data {
+ enum sandbox_i2c_eeprom_test_mode test_mode;
+ const char *filename;
+ int offset_len; /* Length of an offset in bytes */
+ int size; /* Size of data buffer */
+};
+
+struct sandbox_i2c_flash {
+ uint8_t *data;
+};
+
+void sandbox_i2c_eeprom_set_test_mode(struct udevice *dev,
+ enum sandbox_i2c_eeprom_test_mode mode)
+{
+ struct sandbox_i2c_flash_plat_data *plat = dev_get_platdata(dev);
+
+ plat->test_mode = mode;
+}
+
+void sandbox_i2c_eeprom_set_offset_len(struct udevice *dev, int offset_len)
+{
+ struct sandbox_i2c_flash_plat_data *plat = dev_get_platdata(dev);
+
+ plat->offset_len = offset_len;
+}
+
+static int sandbox_i2c_eeprom_xfer(struct udevice *emul, struct i2c_msg *msg,
+ int nmsgs)
+{
+ struct sandbox_i2c_flash *priv = dev_get_priv(emul);
+ uint offset = 0;
+
+ debug("\n%s\n", __func__);
+ debug_buffer(0, priv->data, 1, 16, 0);
+ for (; nmsgs > 0; nmsgs--, msg++) {
+ struct sandbox_i2c_flash_plat_data *plat =
+ dev_get_platdata(emul);
+ int len;
+ u8 *ptr;
+
+ if (!plat->size)
+ return -ENODEV;
+ if (msg->addr + msg->len > plat->size) {
+ debug("%s: Address %x, len %x is outside range 0..%x\n",
+ __func__, msg->addr, msg->len, plat->size);
+ return -EINVAL;
+ }
+ len = msg->len;
+ debug(" %s: msg->len=%d",
+ msg->flags & I2C_M_RD ? "read" : "write",
+ msg->len);
+ if (msg->flags & I2C_M_RD) {
+ if (plat->test_mode == SIE_TEST_MODE_SINGLE_BYTE)
+ len = 1;
+ debug(", offset %x, len %x: ", offset, len);
+ memcpy(msg->buf, priv->data + offset, len);
+ memset(msg->buf + len, '\xff', msg->len - len);
+ debug_buffer(0, msg->buf, 1, msg->len, 0);
+ } else if (len >= plat->offset_len) {
+ int i;
+
+ ptr = msg->buf;
+ for (i = 0; i < plat->offset_len; i++, len--)
+ offset = (offset << 8) | *ptr++;
+ debug(", set offset %x: ", offset);
+ debug_buffer(0, msg->buf, 1, msg->len, 0);
+ if (plat->test_mode == SIE_TEST_MODE_SINGLE_BYTE)
+ len = min(len, 1);
+
+ /* For testing, map offsets into our limited buffer */
+ for (i = 24; i > 0; i -= 8) {
+ if (offset > (1 << i)) {
+ offset = (offset >> i) |
+ (offset & ((1 << i) - 1));
+ offset += i;
+ }
+ }
+ memcpy(priv->data + offset, ptr, len);
+ }
+ }
+ debug_buffer(0, priv->data, 1, 16, 0);
+
+ return 0;
+}
+
+struct dm_i2c_ops sandbox_i2c_emul_ops = {
+ .xfer = sandbox_i2c_eeprom_xfer,
+};
+
+static int sandbox_i2c_eeprom_ofdata_to_platdata(struct udevice *dev)
+{
+ struct sandbox_i2c_flash_plat_data *plat = dev_get_platdata(dev);
+
+ plat->size = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
+ "sandbox,size", 32);
+ plat->filename = fdt_getprop(gd->fdt_blob, dev->of_offset,
+ "sandbox,filename", NULL);
+ if (!plat->filename) {
+ debug("%s: No filename for device '%s'\n", __func__,
+ dev->name);
+ return -EINVAL;
+ }
+ plat->test_mode = SIE_TEST_MODE_NONE;
+ plat->offset_len = 1;
+
+ return 0;
+}
+
+static int sandbox_i2c_eeprom_probe(struct udevice *dev)
+{
+ struct sandbox_i2c_flash_plat_data *plat = dev_get_platdata(dev);
+ struct sandbox_i2c_flash *priv = dev_get_priv(dev);
+
+ priv->data = calloc(1, plat->size);
+ if (!priv->data)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int sandbox_i2c_eeprom_remove(struct udevice *dev)
+{
+ struct sandbox_i2c_flash *priv = dev_get_priv(dev);
+
+ free(priv->data);
+
+ return 0;
+}
+
+static const struct udevice_id sandbox_i2c_ids[] = {
+ { .compatible = "sandbox,i2c-eeprom" },
+ { }
+};
+
+U_BOOT_DRIVER(sandbox_i2c_emul) = {
+ .name = "sandbox_i2c_eeprom_emul",
+ .id = UCLASS_I2C_EMUL,
+ .of_match = sandbox_i2c_ids,
+ .ofdata_to_platdata = sandbox_i2c_eeprom_ofdata_to_platdata,
+ .probe = sandbox_i2c_eeprom_probe,
+ .remove = sandbox_i2c_eeprom_remove,
+ .priv_auto_alloc_size = sizeof(struct sandbox_i2c_flash),
+ .platdata_auto_alloc_size = sizeof(struct sandbox_i2c_flash_plat_data),
+ .ops = &sandbox_i2c_emul_ops,
+};
diff --git a/drivers/misc/mxc_ocotp.c b/drivers/misc/mxc_ocotp.c
index 89737af..d92044e 100644
--- a/drivers/misc/mxc_ocotp.c
+++ b/drivers/misc/mxc_ocotp.c
@@ -81,8 +81,6 @@ static int finish_access(struct ocotp_regs *regs, const char *caller)
err = !!(readl(&regs->ctrl) & BM_CTRL_ERROR);
clear_error(regs);
- enable_ocotp_clk(0);
-
if (err) {
printf("mxc_ocotp %s(): Access protect error\n", caller);
return -EIO;
diff --git a/drivers/misc/mxs_ocotp.c b/drivers/misc/mxs_ocotp.c
index 545d3eb..6f0a1d3 100644
--- a/drivers/misc/mxs_ocotp.c
+++ b/drivers/misc/mxs_ocotp.c
@@ -187,6 +187,8 @@ static int mxs_ocotp_write_fuse(uint32_t addr, uint32_t mask)
uint32_t hclk_val, vddio_val;
int ret;
+ mxs_ocotp_clear_error();
+
/* Make sure the banks are closed for reading. */
ret = mxs_ocotp_read_bank_open(0);
if (ret) {
@@ -221,13 +223,17 @@ static int mxs_ocotp_write_fuse(uint32_t addr, uint32_t mask)
goto fail;
}
+ /* Check for errors */
+ if (readl(&ocotp_regs->hw_ocotp_ctrl) & OCOTP_CTRL_ERROR) {
+ puts("Failed writing fuses!\n");
+ ret = -EPERM;
+ goto fail;
+ }
+
fail:
mxs_ocotp_scale_vddio(0, &vddio_val);
- ret = mxs_ocotp_scale_hclk(0, &hclk_val);
- if (ret) {
+ if (mxs_ocotp_scale_hclk(0, &hclk_val))
puts("Failed scaling up the HCLK!\n");
- return ret;
- }
return ret;
}
diff --git a/drivers/misc/smsc_lpc47m.c b/drivers/misc/smsc_lpc47m.c
new file mode 100644
index 0000000..d51f8e3
--- /dev/null
+++ b/drivers/misc/smsc_lpc47m.c
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/pnp_def.h>
+
+static void pnp_enter_conf_state(u16 dev)
+{
+ u16 port = dev >> 8;
+
+ outb(0x55, port);
+}
+
+static void pnp_exit_conf_state(u16 dev)
+{
+ u16 port = dev >> 8;
+
+ outb(0xaa, port);
+}
+
+void lpc47m_enable_serial(u16 dev, u16 iobase)
+{
+ pnp_enter_conf_state(dev);
+ pnp_set_logical_device(dev);
+ pnp_set_enable(dev, 0);
+ pnp_set_iobase(dev, PNP_IDX_IO0, iobase);
+ pnp_set_enable(dev, 1);
+ pnp_exit_conf_state(dev);
+}
generated by cgit v1.1 at 2024-11-10 02:28:58 +0000