[coreboot-gerrit] New patch to review for coreboot: mediatek/mt8173: Add mt6311 driver
Patrick Georgi (pgeorgi@google.com)
gerrit at coreboot.org
Thu Mar 17 15:15:48 CET 2016
Patrick Georgi (pgeorgi at google.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/14121
-gerrit
commit f6e2ad223a10734d7e5d6f7fa015cf6b88553033
Author: henryc.chen <henryc.chen at mediatek.com>
Date: Wed Mar 2 15:49:52 2016 +0800
mediatek/mt8173: Add mt6311 driver
Add secondary PMIC for external buck control on Oak rev3/4
BRANCH=none
BUG=none
TEST=verified on Oak rev4/rev5
Change-Id: I24c18a1cf71fc57deacedcbeb6a100b131c28077
Signed-off-by: Patrick Georgi <pgeorgi at chromium.org>
Original-Commit-Id: 7f7f8ceac795d8193194a6918a73c4b391009025
Original-Change-Id: I312d8281d2c09d8bc43f092edef3e405d51ee7d0
Original-Signed-off-by: henryc.chen <henryc.chen at mediatek.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/332341
Original-Commit-Ready: Yidi Lin <yidi.lin at mediatek.com>
Original-Tested-by: Yidi Lin <yidi.lin at mediatek.com>
Original-Reviewed-by: Julius Werner <jwerner at chromium.org>
---
src/soc/mediatek/mt8173/Makefile.inc | 1 +
src/soc/mediatek/mt8173/include/soc/mt6311.h | 56 +++++++++++
src/soc/mediatek/mt8173/mt6311.c | 135 +++++++++++++++++++++++++++
3 files changed, 192 insertions(+)
diff --git a/src/soc/mediatek/mt8173/Makefile.inc b/src/soc/mediatek/mt8173/Makefile.inc
old mode 100644
new mode 100755
index e18e6fe..6ba533a
--- a/src/soc/mediatek/mt8173/Makefile.inc
+++ b/src/soc/mediatek/mt8173/Makefile.inc
@@ -66,6 +66,7 @@ ramstage-y += soc.c mtcmos.c
ramstage-y += timer.c
ramstage-$(CONFIG_DRIVERS_UART) += uart.c
ramstage-y += pmic_wrap.c mt6391.c i2c.c
+ramstage-y += mt6311.c
ramstage-y += gpio.c
ramstage-y += wdt.c
ramstage-y += pll.c
diff --git a/src/soc/mediatek/mt8173/include/soc/mt6311.h b/src/soc/mediatek/mt8173/include/soc/mt6311.h
new file mode 100644
index 0000000..28d204d
--- /dev/null
+++ b/src/soc/mediatek/mt8173/include/soc/mt6311.h
@@ -0,0 +1,56 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2015 MediaTek Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef __SOC_MEDIATEK_MT8173_MT6311_H__
+#define __SOC_MEDIATEK_MT8173_MT6311_H__
+
+void mt6311_probe(uint8_t i2c_num);
+
+enum {
+ MT6311_CID = 0x0,
+ MT6311_SWCID = 0x1,
+ MT6311_GPIO_MODE = 0x04,
+ MT6311_TOP_CON = 0x0A,
+ MT6311_TOP_RST_CON = 0x15,
+ MT6311_TOP_INT_CON = 0x18,
+ MT6311_STRUP_CON5 = 0x1F,
+ MT6311_EFUSE_DOUT_56_63 = 0x40,
+ MT6311_EFUSE_DOUT_64_71 = 0x41,
+ MT6311_BUCK_ALL_CON23 = 0x69,
+ MT6311_STRUP_ANA_CON1 = 0x6D,
+ MT6311_STRUP_ANA_CON2 = 0x6E,
+ MT6311_VDVFS1_ANA_CON10 = 0x84,
+ MT6311_VDVFS11_CON7 = 0x88,
+ MT6311_VDVFS11_CON9 = 0x8A,
+ MT6311_VDVFS11_CON10 = 0x8B,
+ MT6311_VDVFS11_CON11 = 0x8C,
+ MT6311_VDVFS11_CON12 = 0x8D,
+ MT6311_VDVFS11_CON13 = 0x8E,
+ MT6311_VDVFS11_CON14 = 0x8F,
+ MT6311_VDVFS11_CON19 = 0x94,
+ MT6311_LDO_CON3 = 0xCF,
+};
+
+enum {
+ MT6311_E1_CID_CODE = 0x0110,
+ MT6311_E2_CID_CODE = 0x0120,
+ MT6311_E3_CID_CODE = 0x0130,
+};
+
+#endif
diff --git a/src/soc/mediatek/mt8173/mt6311.c b/src/soc/mediatek/mt8173/mt6311.c
new file mode 100644
index 0000000..260e236
--- /dev/null
+++ b/src/soc/mediatek/mt8173/mt6311.c
@@ -0,0 +1,135 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2015 MediaTek Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <console/console.h>
+#include <device/i2c.h>
+#include <soc/mt6311.h>
+
+enum {
+ MT6311_SLAVE_ADDR = 0x6B,
+};
+
+static u32 get_mt6311_chip_id(uint8_t i2c_num)
+{
+ unsigned char id[2] = {0};
+
+ i2c_read_field(i2c_num, MT6311_SLAVE_ADDR, MT6311_CID,
+ &id[0], 0xFF, 0);
+ i2c_read_field(i2c_num, MT6311_SLAVE_ADDR, MT6311_SWCID,
+ &id[1], 0xFF, 0);
+
+ return (u32)(id[0] << 8 | id[1]);
+}
+
+static void mt6311_hw_init(uint8_t i2c_num)
+{
+ int ret = 0;
+ unsigned char var[3] = {0};
+
+
+ /*
+ * Phase Shedding Trim Software Setting
+ * The phase 2 of MT6311 will enter PWM mode if the threshold is
+ * reached.
+ * The threshold is set according to EFUSE value.
+ */
+ ret |= i2c_read_field(i2c_num, MT6311_SLAVE_ADDR,
+ MT6311_EFUSE_DOUT_56_63, &var[0],
+ 0x3, 1);
+ ret |= i2c_read_field(i2c_num, MT6311_SLAVE_ADDR,
+ MT6311_EFUSE_DOUT_56_63, &var[1],
+ 0x1, 7);
+ ret |= i2c_read_field(i2c_num, MT6311_SLAVE_ADDR,
+ MT6311_EFUSE_DOUT_64_71, &var[2],
+ 0x1, 0);
+
+ ret |= i2c_write_field(i2c_num, MT6311_SLAVE_ADDR,
+ MT6311_VDVFS1_ANA_CON10,
+ var[0] | var[1] << 2 | var[2] << 3, 0xf, 0);
+
+ /* I2C_CONFIG; pushpull setting, Opendrain is '0' */
+ ret |= i2c_write_field(i2c_num, MT6311_SLAVE_ADDR, MT6311_TOP_INT_CON,
+ 0x1, 0x1, 2);
+ /* RG_WDTRSTB_EN; CC, initial WDRSTB setting. */
+ ret |= i2c_write_field(i2c_num, MT6311_SLAVE_ADDR, MT6311_TOP_RST_CON,
+ 0x1, 0x1, 5);
+ /* initial INT function */
+ ret |= i2c_write_field(i2c_num, MT6311_SLAVE_ADDR, MT6311_GPIO_MODE,
+ 0x1, 0x7, 3);
+ ret |= i2c_write_field(i2c_num, MT6311_SLAVE_ADDR, MT6311_STRUP_CON5,
+ 0, 1 << 2 | 1 << 1 | 1 << 0, 0);
+
+ /* Vo max is 1.15V */
+ ret |= i2c_write_field(i2c_num, MT6311_SLAVE_ADDR,
+ MT6311_STRUP_ANA_CON1, 0x3, 0x3, 5);
+ ret |= i2c_write_field(i2c_num, MT6311_SLAVE_ADDR,
+ MT6311_BUCK_ALL_CON23, 0x1, 0x1, 0);
+ ret |= i2c_write_field(i2c_num, MT6311_SLAVE_ADDR,
+ MT6311_STRUP_ANA_CON2, 0x3, 0x3, 0);
+ /* Suspend HW control from SPM */
+ ret |= i2c_write_field(i2c_num, MT6311_SLAVE_ADDR,
+ MT6311_TOP_CON, 0x1, 0x1, 0);
+ ret |= i2c_write_field(i2c_num, MT6311_SLAVE_ADDR,
+ MT6311_VDVFS11_CON7, 0x1, 0x1, 0);
+ /* default VDVFS power on */
+ ret |= i2c_write_field(i2c_num, MT6311_SLAVE_ADDR,
+ MT6311_VDVFS11_CON9, 0x1, 0x1, 0);
+ /* for DVFS slew rate rising=0.67us */
+ ret |= i2c_write_field(i2c_num, MT6311_SLAVE_ADDR,
+ MT6311_VDVFS11_CON10, 0x1, 0x7f, 0);
+ /* for DVFS slew rate, falling 2.0us */
+ ret |= i2c_write_field(i2c_num, MT6311_SLAVE_ADDR,
+ MT6311_VDVFS11_CON11, 0x5, 0x7f, 0);
+ /* default VDVFS11_VOSEL 1.0V, SW control */
+ ret |= i2c_write_field(i2c_num, MT6311_SLAVE_ADDR,
+ MT6311_VDVFS11_CON12, 0x40, 0x7f, 0);
+ /* default VDVFS11_VOSEL_ON 1.0V, HW control */
+ ret |= i2c_write_field(i2c_num, MT6311_SLAVE_ADDR,
+ MT6311_VDVFS11_CON13, 0x40, 0x7f, 0);
+ ret |= i2c_write_field(i2c_num, MT6311_SLAVE_ADDR,
+ MT6311_VDVFS11_CON14, 0x40, 0x7f, 0);
+ /* for DVFS sof change, falling 50us */
+ ret |= i2c_write_field(i2c_num, MT6311_SLAVE_ADDR,
+ MT6311_VDVFS11_CON19, 0x3, 0x3, 0);
+ /* for DVFS sof change, falling only */
+ ret |= i2c_write_field(i2c_num, MT6311_SLAVE_ADDR,
+ MT6311_VDVFS11_CON19, 0x1, 0x3, 4);
+ /* OFF LDO */
+ ret |= i2c_write_field(i2c_num, MT6311_SLAVE_ADDR,
+ MT6311_LDO_CON3, 0, 0x1, 0);
+
+ if (ret)
+ printk(BIOS_ERR, "ERROR: %s failed\n", __func__);
+}
+
+void mt6311_probe(uint8_t i2c_num)
+{
+ u32 val = 0;
+
+ /* Check device ID is MT6311 */
+ val = get_mt6311_chip_id(i2c_num);
+ printk(BIOS_INFO, "%s: device ID = %#x\n", __func__, val);
+
+ if (val < MT6311_E1_CID_CODE) {
+ printk(BIOS_ERR, "ERROR: unknown MT6311 device_id\n");
+ return;
+ }
+
+ mt6311_hw_init(i2c_num);
+}
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