From 9247d128390a70ab8ad5a2eba4ea73dc56a51375 Mon Sep 17 00:00:00 2001 From: Hsin-Hsiung Wang Date: Fri, 10 Jul 2020 16:50:53 +0800 Subject: soc/mediatek/mt8192: add pmic MT6315 driver MT6315 is a buck converter for Mediatek MT8192 platform. Reference datasheet: MT6315 datasheet v1.4.2.pdf, RH-D-2019-0616. BUG=b:155253454 BRANCH=none TEST=boot asurada correctly Signed-off-by: Hsin-Hsiung Wang Change-Id: I6b47473ee5d56a197bd21d4ab9b539d9663b6636 Reviewed-on: https://review.coreboot.org/c/coreboot/+/45400 Reviewed-by: Hung-Te Lin Reviewed-by: Yu-Ping Wu Tested-by: build bot (Jenkins) --- src/soc/mediatek/mt8192/Makefile.inc | 1 + src/soc/mediatek/mt8192/bootblock.c | 2 + src/soc/mediatek/mt8192/include/soc/mt6315.h | 40 ++++ src/soc/mediatek/mt8192/mt6315.c | 303 +++++++++++++++++++++++++++ 4 files changed, 346 insertions(+) create mode 100644 src/soc/mediatek/mt8192/include/soc/mt6315.h create mode 100644 src/soc/mediatek/mt8192/mt6315.c (limited to 'src') diff --git a/src/soc/mediatek/mt8192/Makefile.inc b/src/soc/mediatek/mt8192/Makefile.inc index e4f7063787..3237d409c0 100644 --- a/src/soc/mediatek/mt8192/Makefile.inc +++ b/src/soc/mediatek/mt8192/Makefile.inc @@ -10,6 +10,7 @@ bootblock-y += ../common/timer.c bootblock-y += ../common/uart.c bootblock-y += ../common/wdt.c bootblock-y += pmif.c pmif_clk.c pmif_spi.c pmif_spmi.c +bootblock-y += mt6315.c bootblock-y += mt6359p.c verstage-y += flash_controller.c diff --git a/src/soc/mediatek/mt8192/bootblock.c b/src/soc/mediatek/mt8192/bootblock.c index d9cb684adf..7987b1cf8e 100644 --- a/src/soc/mediatek/mt8192/bootblock.c +++ b/src/soc/mediatek/mt8192/bootblock.c @@ -2,6 +2,7 @@ #include #include +#include #include #include #include @@ -14,4 +15,5 @@ void bootblock_soc_init(void) mt_pll_init(); mtk_pmif_init(); mt6359p_init(); + mt6315_init(); } diff --git a/src/soc/mediatek/mt8192/include/soc/mt6315.h b/src/soc/mediatek/mt8192/include/soc/mt6315.h new file mode 100644 index 0000000000..4d179bed68 --- /dev/null +++ b/src/soc/mediatek/mt8192/include/soc/mt6315.h @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef __SOC_MEDIATEK_MT6315_H__ +#define __SOC_MEDIATEK_MT6315_H__ + +#include +#include + +struct mt6315_setting { + unsigned short addr; + unsigned short val; + unsigned short mask; + unsigned char shift; +}; + +enum { + MT6315_CPU = SPMI_SLAVE_6, + MT6315_GPU = SPMI_SLAVE_7, + MT6315_MAX, +}; + +enum { + MT6315_BUCK_1 = 0, + MT6315_BUCK_2, + MT6315_BUCK_3, + MT6315_BUCK_4, + MT6315_BUCK_max, +}; + +enum { + MT6315_BUCK_TOP_ELR0 = 0x1449, + MT6315_BUCK_TOP_ELR3 = 0x144d, + MT6315_BUCK_VBUCK1_DBG0 = 0x1499, + MT6315_BUCK_VBUCK1_DBG3 = 0x1599, +}; + +void mt6315_init(void); +void mt6315_buck_set_voltage(u32 slvid, u32 buck_id, u32 buck_uv); +u32 mt6315_buck_get_voltage(u32 slvid, u32 buck_id); +#endif /* __SOC_MEDIATEK_MT6315_H__ */ diff --git a/src/soc/mediatek/mt8192/mt6315.c b/src/soc/mediatek/mt8192/mt6315.c new file mode 100644 index 0000000000..9752e3dfcb --- /dev/null +++ b/src/soc/mediatek/mt8192/mt6315.c @@ -0,0 +1,303 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include +#include +#include +#include +#include + +static struct pmif *pmif_arb = NULL; + +static const struct mt6315_setting init_setting_cpu[] = { + /* disable magic key protection */ + {0x3A9, 0x63, 0xFF, 0}, + {0x3A8, 0x15, 0xFF, 0}, + {0x3A0, 0x9C, 0xFF, 0}, + {0x39F, 0xEA, 0xFF, 0}, + {0x993, 0x47, 0xFF, 0}, + {0x992, 0x29, 0xFF, 0}, + {0x1418, 0x55, 0xFF, 0}, + {0x1417, 0x43, 0xFF, 0}, + {0x3A2, 0x2A, 0xFF, 0}, + {0x3A1, 0x7C, 0xFF, 0}, + /* clear boot status */ + {0x12A, 0x3, 0xFF, 0}, + {0xD, 1, 0x1, 0}, + {0xD, 0, 0x1, 0}, + {0x1416, 0xF, 0xF, 0}, + /* init setting */ + {0x13, 0x2, 0x2, 0}, + {0x15, 0x1F, 0x1F, 0}, + {0x22, 0x12, 0x12, 0}, + {0x8A, 0x6, 0xF, 0}, + {0x10B, 0x3, 0x3, 0}, + {0x38B, 0x4, 0xFF, 0}, + {0xA07, 0x0, 0x1, 0}, + {0xA1A, 0x1F, 0x1F, 0}, + {0x1457, 0x0, 0xFF, 0}, + {0x997, 0x7, 0x7F, 0}, + {0x999, 0xF0, 0xF0, 0}, + {0x9A0, 0x1, 0x1F, 0}, + {0x9A1, 0x1, 0x1F, 0}, + {0x9A2, 0x0, 0x1F, 0}, + {0x9A3, 0x1, 0x1F, 0}, + {0x1440, 0x0, 0xA, 0}, + {0x1487, 0x58, 0xFF, 0}, + {0x148B, 0x1, 0x7F, 0}, + {0x148C, 0x2, 0x7F, 0}, + {0x1507, 0x58, 0xFF, 0}, + {0x150B, 0x1, 0x7F, 0}, + {0x150C, 0x2, 0x7F, 0}, + {0x1587, 0x58, 0xFF, 0}, + {0x158B, 0x1, 0x7F, 0}, + {0x158C, 0x4, 0x7F, 0}, + {0x1607, 0x58, 0xFF, 0}, + {0x160B, 0x1, 0x7F, 0}, + {0x160C, 0x2, 0x7F, 0}, + {0x1687, 0x22, 0x76, 0}, + {0x1688, 0xE, 0x2F, 0}, + {0x1689, 0xA1, 0xE1, 0}, + {0x168A, 0x79, 0x7F, 0}, + {0x168B, 0x12, 0x3F, 0}, + {0x168D, 0x0, 0xC, 0}, + {0x168E, 0xD7, 0xFF, 0}, + {0x168F, 0x81, 0xFF, 0}, + {0x1690, 0x13, 0x3F, 0}, + {0x1691, 0x22, 0x76, 0}, + {0x1692, 0xE, 0x2F, 0}, + {0x1693, 0xA1, 0xE1, 0}, + {0x1694, 0x79, 0x7F, 0}, + {0x1695, 0x12, 0x3F, 0}, + {0x1697, 0x0, 0xC, 0}, + {0x1698, 0xD7, 0xFF, 0}, + {0x1699, 0x81, 0xFF, 0}, + {0x169A, 0x13, 0x3F, 0}, + {0x169B, 0x20, 0x70, 0}, + {0x169C, 0xE, 0x2F, 0}, + {0x169D, 0x80, 0xC1, 0}, + {0x169E, 0xF8, 0xF8, 0}, + {0x169F, 0x12, 0x3F, 0}, + {0x16A1, 0x0, 0xC, 0}, + {0x16A2, 0xDB, 0xFF, 0}, + {0x16A3, 0xA1, 0xFF, 0}, + {0x16A4, 0x1, 0xF, 0}, + {0x16A5, 0x22, 0x76, 0}, + {0x16A6, 0xE, 0x2F, 0}, + {0x16A7, 0xA1, 0xE1, 0}, + {0x16A8, 0x79, 0xFF, 0}, + {0x16A9, 0x12, 0x3F, 0}, + {0x16AB, 0x0, 0xC, 0}, + {0x16AC, 0xD7, 0xFF, 0}, + {0x16AD, 0x81, 0xFF, 0}, + {0x16AE, 0x13, 0x3F, 0}, + /* enable magic key protection */ + {0x3A9, 0, 0xFF, 0}, + {0x3A8, 0, 0xFF, 0}, + {0x3A0, 0, 0xFF, 0}, + {0x39F, 0, 0xFF, 0}, + {0x993, 0, 0xFF, 0}, + {0x992, 0, 0xFF, 0}, + {0x1418, 0, 0xFF, 0}, + {0x1417, 0, 0xFF, 0}, + {0x3a2, 0, 0xFF, 0}, + {0x3a1, 0, 0xFF, 0}, +}; + +static const struct mt6315_setting init_setting_gpu[] = { + /* disable magic key protection */ + {0x3A9, 0x63, 0xFF, 0}, + {0x3A8, 0x15, 0xFF, 0}, + {0x3A0, 0x9C, 0xFF, 0}, + {0x39F, 0xEA, 0xFF, 0}, + {0x993, 0x47, 0xFF, 0}, + {0x992, 0x29, 0xFF, 0}, + {0x1418, 0x55, 0xFF, 0}, + {0x1417, 0x43, 0xFF, 0}, + {0x3a2, 0x2A, 0xFF, 0}, + {0x3a1, 0x7C, 0xFF, 0}, + /* init setting */ + {0x13, 0x2, 0x2, 0}, + {0x15, 0x1F, 0x1F, 0}, + {0x22, 0x12, 0x12, 0}, + {0x8A, 0x6, 0xF, 0}, + {0x10B, 0x3, 0x3, 0}, + {0x38B, 0x4, 0xFF, 0}, + {0xA07, 0x0, 0x1, 0}, + {0xA1A, 0x1F, 0x1F, 0}, + {0x1457, 0x0, 0xFF, 0}, + {0x997, 0x2F, 0x7F, 0}, + {0x999, 0xF0, 0xF0, 0}, + {0x9A0, 0x0, 0x1F, 0}, + {0x9A1, 0x0, 0x1F, 0}, + {0x9A2, 0xB, 0x1F, 0}, + {0x9A3, 0x0, 0x1F, 0}, + {0x1440, 0x0, 0xA, 0}, + {0x1487, 0x58, 0xFF, 0}, + {0x148B, 0x1, 0x7F, 0}, + {0x148C, 0x4, 0x7F, 0}, + {0x1507, 0x58, 0xFF, 0}, + {0x150B, 0x1, 0x7F, 0}, + {0x150C, 0x4, 0x7F, 0}, + {0x1587, 0x58, 0xFF, 0}, + {0x158B, 0x1, 0x7F, 0}, + {0x158C, 0x4, 0x7F, 0}, + {0x1607, 0x58, 0xFF, 0}, + {0x160B, 0x1, 0x7F, 0}, + {0x160C, 0x4, 0x7F, 0}, + {0x1687, 0x22, 0x76, 0}, + {0x1688, 0xE, 0x2F, 0}, + {0x1689, 0xA1, 0xE1, 0}, + {0x168A, 0x79, 0x7F, 0}, + {0x168B, 0x12, 0x3F, 0}, + {0x168D, 0x0, 0xC, 0}, + {0x168E, 0xD7, 0xFF, 0}, + {0x168F, 0x81, 0xFF, 0}, + {0x1690, 0x13, 0x3F, 0}, + {0x1691, 0x22, 0x76, 0}, + {0x1692, 0xE, 0x2F, 0}, + {0x1693, 0xA1, 0xE1, 0}, + {0x1694, 0x79, 0x7F, 0}, + {0x1695, 0x12, 0x3F, 0}, + {0x1697, 0x0, 0xC, 0}, + {0x1698, 0xD7, 0xFF, 0}, + {0x1699, 0x81, 0xFF, 0}, + {0x169A, 0x13, 0x3F, 0}, + {0x169B, 0x22, 0x76, 0}, + {0x169C, 0xE, 0x2F, 0}, + {0x169D, 0xA1, 0xE1, 0}, + {0x169E, 0x79, 0x7F, 0}, + {0x169F, 0x12, 0x3F, 0}, + {0x16A1, 0x0, 0xC, 0}, + {0x16A2, 0xD7, 0xFF, 0}, + {0x16A3, 0x81, 0xFF, 0}, + {0x16A4, 0x13, 0x3F, 0}, + {0x16A5, 0x22, 0x76, 0}, + {0x16A6, 0xE, 0x2F, 0}, + {0x16A7, 0xA1, 0xE1, 0}, + {0x16A8, 0x79, 0xFF, 0}, + {0x16A9, 0x12, 0x3F, 0}, + {0x16AB, 0x0, 0xC, 0}, + {0x16AC, 0xD7, 0xFF, 0}, + {0x16AD, 0x81, 0xFF, 0}, + {0x16AE, 0x13, 0x3F, 0}, + /* Don't remove this! it's MT6315 for GPU only to disable VBUCK3 */ + {0x1440, 0x0, 0x4, 0}, + /* enable magic key protection */ + {0x3A9, 0, 0xFF, 0}, + {0x3A8, 0, 0xFF, 0}, + {0x3A0, 0, 0xFF, 0}, + {0x39F, 0, 0xFF, 0}, + {0x993, 0, 0xFF, 0}, + {0x992, 0, 0xFF, 0}, + {0x1418, 0, 0xFF, 0}, + {0x1417, 0, 0xFF, 0}, + {0x3a2, 0, 0xFF, 0}, + {0x3a1, 0, 0xFF, 0}, +}; + +static void mt6315_read(u32 slvid, u32 reg, u32 *data) +{ + pmif_arb->read(pmif_arb, slvid, reg, data); +} + +static void mt6315_write(u32 slvid, u32 reg, u32 data) +{ + pmif_arb->write(pmif_arb, slvid, reg, data); +} + +static void mt6315_write_field(u32 slvid, u32 reg, u32 val, u32 mask, u32 shift) +{ + pmif_arb->write_field(pmif_arb, 0, reg, val, mask, shift); +} + +static void mt6315_wdt_enable(u32 slvid) +{ + mt6315_write(slvid, 0x3A9, 0x63); + mt6315_write(slvid, 0x3A8, 0x15); + mt6315_write(slvid, 0x127, 0x2); + mt6315_write(slvid, 0x127, 0x1); + mt6315_write(slvid, 0x127, 0x8); + udelay(50); + mt6315_write(slvid, 0x128, 0x8); + mt6315_write(slvid, 0x3A9, 0); + mt6315_write(slvid, 0x3A8, 0); +} + +static void mt6315_init_setting(void) +{ + for (int i = 0; i < ARRAY_SIZE(init_setting_cpu); i++) + mt6315_write_field(MT6315_CPU, + init_setting_cpu[i].addr, init_setting_cpu[i].val, + init_setting_cpu[i].mask, init_setting_cpu[i].shift); + + for (int i = 0; i < ARRAY_SIZE(init_setting_gpu); i++) + mt6315_write_field(MT6315_GPU, + init_setting_gpu[i].addr, init_setting_gpu[i].val, + init_setting_gpu[i].mask, init_setting_gpu[i].shift); +} + +void mt6315_buck_set_voltage(u32 slvid, u32 buck_id, u32 buck_uv) +{ + unsigned int vol_reg, vol_val; + + if (!pmif_arb) + die("ERROR: pmif_arb not initialized"); + + switch (buck_id) { + case MT6315_BUCK_1: + vol_reg = MT6315_BUCK_TOP_ELR0; + break; + case MT6315_BUCK_3: + vol_reg = MT6315_BUCK_TOP_ELR3; + break; + default: + die("ERROR: Unknown buck_id %u", buck_id); + return; + }; + + vol_val = buck_uv / 6250; + mt6315_write(slvid, vol_reg, vol_val); +} + +u32 mt6315_buck_get_voltage(u32 slvid, u32 buck_id) +{ + u32 vol_reg, vol; + + if (!pmif_arb) + die("ERROR: pmif_arb not initialized"); + + switch (buck_id) { + case MT6315_BUCK_1: + vol_reg = MT6315_BUCK_VBUCK1_DBG0; + break; + case MT6315_BUCK_3: + vol_reg = MT6315_BUCK_VBUCK1_DBG3; + break; + default: + die("ERROR: Unknown buck_id %u", buck_id); + return 0; + }; + + mt6315_read(slvid, vol_reg, &vol); + return vol * 6250; +} + +static void init_pmif_arb(void) +{ + if (!pmif_arb) { + pmif_arb = get_pmif_controller(PMIF_SPMI, 0); + if (!pmif_arb) + die("ERROR: No spmi device"); + } + + if (pmif_arb->is_pmif_init_done(pmif_arb)) + die("ERROR - Failed to initialize pmif spmi"); +} + +void mt6315_init(void) +{ + init_pmif_arb(); + mt6315_wdt_enable(MT6315_CPU); + mt6315_wdt_enable(MT6315_GPU); + mt6315_init_setting(); +} -- cgit v1.2.3