[PATCH 3/9] board: st: create common file stpmic1.c
Patrick Delaunay
patrick.delaunay at st.com
Tue Apr 21 17:11:22 CEST 2020
Move function board_ddr_power_init() in a new file stpmic1 in
board/st/common to avoid duplicated code in each board using
stpmic1
Signed-off-by: Patrick Delaunay <patrick.delaunay at st.com>
---
board/dhelectronics/dh_stm32mp1/Makefile | 2 +-
board/st/common/Makefile | 1 +
board/st/common/stpmic1.c | 162 +++++++++++++++++++++++
board/st/stm32mp1/board.c | 158 ----------------------
4 files changed, 164 insertions(+), 159 deletions(-)
create mode 100644 board/st/common/stpmic1.c
diff --git a/board/dhelectronics/dh_stm32mp1/Makefile b/board/dhelectronics/dh_stm32mp1/Makefile
index b42c4e4c04..04586c0a28 100644
--- a/board/dhelectronics/dh_stm32mp1/Makefile
+++ b/board/dhelectronics/dh_stm32mp1/Makefile
@@ -7,4 +7,4 @@ ifdef CONFIG_SPL_BUILD
obj-y += ../../st/stm32mp1/spl.o
endif
-obj-y += ../../st/stm32mp1/board.o board.o
+obj-y += ../../st/common/stpmic1.o board.o
diff --git a/board/st/common/Makefile b/board/st/common/Makefile
index 8553606b90..78bc0307f7 100644
--- a/board/st/common/Makefile
+++ b/board/st/common/Makefile
@@ -4,3 +4,4 @@
#
obj-$(CONFIG_CMD_STBOARD) += cmd_stboard.o
+obj-$(CONFIG_PMIC_STPMIC1) += stpmic1.o
diff --git a/board/st/common/stpmic1.c b/board/st/common/stpmic1.c
new file mode 100644
index 0000000000..ca10a2246b
--- /dev/null
+++ b/board/st/common/stpmic1.c
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
+/*
+ * Copyright (C) 2020, STMicroelectronics - All Rights Reserved
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <asm/arch/ddr.h>
+#include <power/pmic.h>
+#include <power/stpmic1.h>
+
+int board_ddr_power_init(enum ddr_type ddr_type)
+{
+ struct udevice *dev;
+ bool buck3_at_1800000v = false;
+ int ret;
+ u32 buck2;
+
+ ret = uclass_get_device_by_driver(UCLASS_PMIC,
+ DM_GET_DRIVER(pmic_stpmic1), &dev);
+ if (ret)
+ /* No PMIC on board */
+ return 0;
+
+ switch (ddr_type) {
+ case STM32MP_DDR3:
+ /* VTT = Set LDO3 to sync mode */
+ ret = pmic_reg_read(dev, STPMIC1_LDOX_MAIN_CR(STPMIC1_LDO3));
+ if (ret < 0)
+ return ret;
+
+ ret &= ~STPMIC1_LDO3_MODE;
+ ret &= ~STPMIC1_LDO12356_VOUT_MASK;
+ ret |= STPMIC1_LDO_VOUT(STPMIC1_LDO3_DDR_SEL);
+
+ ret = pmic_reg_write(dev, STPMIC1_LDOX_MAIN_CR(STPMIC1_LDO3),
+ ret);
+ if (ret < 0)
+ return ret;
+
+ /* VDD_DDR = Set BUCK2 to 1.35V */
+ ret = pmic_clrsetbits(dev,
+ STPMIC1_BUCKX_MAIN_CR(STPMIC1_BUCK2),
+ STPMIC1_BUCK_VOUT_MASK,
+ STPMIC1_BUCK2_1350000V);
+ if (ret < 0)
+ return ret;
+
+ /* Enable VDD_DDR = BUCK2 */
+ ret = pmic_clrsetbits(dev,
+ STPMIC1_BUCKX_MAIN_CR(STPMIC1_BUCK2),
+ STPMIC1_BUCK_ENA, STPMIC1_BUCK_ENA);
+ if (ret < 0)
+ return ret;
+
+ mdelay(STPMIC1_DEFAULT_START_UP_DELAY_MS);
+
+ /* Enable VREF */
+ ret = pmic_clrsetbits(dev, STPMIC1_REFDDR_MAIN_CR,
+ STPMIC1_VREF_ENA, STPMIC1_VREF_ENA);
+ if (ret < 0)
+ return ret;
+
+ mdelay(STPMIC1_DEFAULT_START_UP_DELAY_MS);
+
+ /* Enable VTT = LDO3 */
+ ret = pmic_clrsetbits(dev,
+ STPMIC1_LDOX_MAIN_CR(STPMIC1_LDO3),
+ STPMIC1_LDO_ENA, STPMIC1_LDO_ENA);
+ if (ret < 0)
+ return ret;
+
+ mdelay(STPMIC1_DEFAULT_START_UP_DELAY_MS);
+
+ break;
+
+ case STM32MP_LPDDR2_16:
+ case STM32MP_LPDDR2_32:
+ case STM32MP_LPDDR3_16:
+ case STM32MP_LPDDR3_32:
+ /*
+ * configure VDD_DDR1 = LDO3
+ * Set LDO3 to 1.8V
+ * + bypass mode if BUCK3 = 1.8V
+ * + normal mode if BUCK3 != 1.8V
+ */
+ ret = pmic_reg_read(dev,
+ STPMIC1_BUCKX_MAIN_CR(STPMIC1_BUCK3));
+ if (ret < 0)
+ return ret;
+
+ if ((ret & STPMIC1_BUCK3_1800000V) == STPMIC1_BUCK3_1800000V)
+ buck3_at_1800000v = true;
+
+ ret = pmic_reg_read(dev, STPMIC1_LDOX_MAIN_CR(STPMIC1_LDO3));
+ if (ret < 0)
+ return ret;
+
+ ret &= ~STPMIC1_LDO3_MODE;
+ ret &= ~STPMIC1_LDO12356_VOUT_MASK;
+ ret |= STPMIC1_LDO3_1800000;
+ if (buck3_at_1800000v)
+ ret |= STPMIC1_LDO3_MODE;
+
+ ret = pmic_reg_write(dev, STPMIC1_LDOX_MAIN_CR(STPMIC1_LDO3),
+ ret);
+ if (ret < 0)
+ return ret;
+
+ /* VDD_DDR2 : Set BUCK2 to 1.2V (16bits) or 1.25V (32 bits)*/
+ switch (ddr_type) {
+ case STM32MP_LPDDR2_32:
+ case STM32MP_LPDDR3_32:
+ buck2 = STPMIC1_BUCK2_1250000V;
+ break;
+ default:
+ case STM32MP_LPDDR2_16:
+ case STM32MP_LPDDR3_16:
+ buck2 = STPMIC1_BUCK2_1200000V;
+ break;
+ }
+
+ ret = pmic_clrsetbits(dev,
+ STPMIC1_BUCKX_MAIN_CR(STPMIC1_BUCK2),
+ STPMIC1_BUCK_VOUT_MASK,
+ buck2);
+ if (ret < 0)
+ return ret;
+
+ /* Enable VDD_DDR1 = LDO3 */
+ ret = pmic_clrsetbits(dev, STPMIC1_LDOX_MAIN_CR(STPMIC1_LDO3),
+ STPMIC1_LDO_ENA, STPMIC1_LDO_ENA);
+ if (ret < 0)
+ return ret;
+
+ mdelay(STPMIC1_DEFAULT_START_UP_DELAY_MS);
+
+ /* Enable VDD_DDR2 =BUCK2 */
+ ret = pmic_clrsetbits(dev,
+ STPMIC1_BUCKX_MAIN_CR(STPMIC1_BUCK2),
+ STPMIC1_BUCK_ENA, STPMIC1_BUCK_ENA);
+ if (ret < 0)
+ return ret;
+
+ mdelay(STPMIC1_DEFAULT_START_UP_DELAY_MS);
+
+ /* Enable VREF */
+ ret = pmic_clrsetbits(dev, STPMIC1_REFDDR_MAIN_CR,
+ STPMIC1_VREF_ENA, STPMIC1_VREF_ENA);
+ if (ret < 0)
+ return ret;
+
+ mdelay(STPMIC1_DEFAULT_START_UP_DELAY_MS);
+
+ break;
+
+ default:
+ break;
+ };
+
+ return 0;
+}
diff --git a/board/st/stm32mp1/board.c b/board/st/stm32mp1/board.c
index 4e35d36c76..1887941e57 100644
--- a/board/st/stm32mp1/board.c
+++ b/board/st/stm32mp1/board.c
@@ -4,11 +4,7 @@
*/
#include <common.h>
-#include <dm.h>
#include <asm/io.h>
-#include <asm/arch/ddr.h>
-#include <power/pmic.h>
-#include <power/stpmic1.h>
#ifdef CONFIG_DEBUG_UART_BOARD_INIT
void board_debug_uart_init(void)
@@ -36,157 +32,3 @@ void board_debug_uart_init(void)
#endif
}
#endif
-
-#ifdef CONFIG_PMIC_STPMIC1
-int board_ddr_power_init(enum ddr_type ddr_type)
-{
- struct udevice *dev;
- bool buck3_at_1800000v = false;
- int ret;
- u32 buck2;
-
- ret = uclass_get_device_by_driver(UCLASS_PMIC,
- DM_GET_DRIVER(pmic_stpmic1), &dev);
- if (ret)
- /* No PMIC on board */
- return 0;
-
- switch (ddr_type) {
- case STM32MP_DDR3:
- /* VTT = Set LDO3 to sync mode */
- ret = pmic_reg_read(dev, STPMIC1_LDOX_MAIN_CR(STPMIC1_LDO3));
- if (ret < 0)
- return ret;
-
- ret &= ~STPMIC1_LDO3_MODE;
- ret &= ~STPMIC1_LDO12356_VOUT_MASK;
- ret |= STPMIC1_LDO_VOUT(STPMIC1_LDO3_DDR_SEL);
-
- ret = pmic_reg_write(dev, STPMIC1_LDOX_MAIN_CR(STPMIC1_LDO3),
- ret);
- if (ret < 0)
- return ret;
-
- /* VDD_DDR = Set BUCK2 to 1.35V */
- ret = pmic_clrsetbits(dev,
- STPMIC1_BUCKX_MAIN_CR(STPMIC1_BUCK2),
- STPMIC1_BUCK_VOUT_MASK,
- STPMIC1_BUCK2_1350000V);
- if (ret < 0)
- return ret;
-
- /* Enable VDD_DDR = BUCK2 */
- ret = pmic_clrsetbits(dev,
- STPMIC1_BUCKX_MAIN_CR(STPMIC1_BUCK2),
- STPMIC1_BUCK_ENA, STPMIC1_BUCK_ENA);
- if (ret < 0)
- return ret;
-
- mdelay(STPMIC1_DEFAULT_START_UP_DELAY_MS);
-
- /* Enable VREF */
- ret = pmic_clrsetbits(dev, STPMIC1_REFDDR_MAIN_CR,
- STPMIC1_VREF_ENA, STPMIC1_VREF_ENA);
- if (ret < 0)
- return ret;
-
- mdelay(STPMIC1_DEFAULT_START_UP_DELAY_MS);
-
- /* Enable VTT = LDO3 */
- ret = pmic_clrsetbits(dev,
- STPMIC1_LDOX_MAIN_CR(STPMIC1_LDO3),
- STPMIC1_LDO_ENA, STPMIC1_LDO_ENA);
- if (ret < 0)
- return ret;
-
- mdelay(STPMIC1_DEFAULT_START_UP_DELAY_MS);
-
- break;
-
- case STM32MP_LPDDR2_16:
- case STM32MP_LPDDR2_32:
- case STM32MP_LPDDR3_16:
- case STM32MP_LPDDR3_32:
- /*
- * configure VDD_DDR1 = LDO3
- * Set LDO3 to 1.8V
- * + bypass mode if BUCK3 = 1.8V
- * + normal mode if BUCK3 != 1.8V
- */
- ret = pmic_reg_read(dev,
- STPMIC1_BUCKX_MAIN_CR(STPMIC1_BUCK3));
- if (ret < 0)
- return ret;
-
- if ((ret & STPMIC1_BUCK3_1800000V) == STPMIC1_BUCK3_1800000V)
- buck3_at_1800000v = true;
-
- ret = pmic_reg_read(dev, STPMIC1_LDOX_MAIN_CR(STPMIC1_LDO3));
- if (ret < 0)
- return ret;
-
- ret &= ~STPMIC1_LDO3_MODE;
- ret &= ~STPMIC1_LDO12356_VOUT_MASK;
- ret |= STPMIC1_LDO3_1800000;
- if (buck3_at_1800000v)
- ret |= STPMIC1_LDO3_MODE;
-
- ret = pmic_reg_write(dev, STPMIC1_LDOX_MAIN_CR(STPMIC1_LDO3),
- ret);
- if (ret < 0)
- return ret;
-
- /* VDD_DDR2 : Set BUCK2 to 1.2V (16bits) or 1.25V (32 bits)*/
- switch (ddr_type) {
- case STM32MP_LPDDR2_32:
- case STM32MP_LPDDR3_32:
- buck2 = STPMIC1_BUCK2_1250000V;
- break;
- default:
- case STM32MP_LPDDR2_16:
- case STM32MP_LPDDR3_16:
- buck2 = STPMIC1_BUCK2_1200000V;
- break;
- }
-
- ret = pmic_clrsetbits(dev,
- STPMIC1_BUCKX_MAIN_CR(STPMIC1_BUCK2),
- STPMIC1_BUCK_VOUT_MASK,
- buck2);
- if (ret < 0)
- return ret;
-
- /* Enable VDD_DDR1 = LDO3 */
- ret = pmic_clrsetbits(dev, STPMIC1_LDOX_MAIN_CR(STPMIC1_LDO3),
- STPMIC1_LDO_ENA, STPMIC1_LDO_ENA);
- if (ret < 0)
- return ret;
-
- mdelay(STPMIC1_DEFAULT_START_UP_DELAY_MS);
-
- /* Enable VDD_DDR2 =BUCK2 */
- ret = pmic_clrsetbits(dev,
- STPMIC1_BUCKX_MAIN_CR(STPMIC1_BUCK2),
- STPMIC1_BUCK_ENA, STPMIC1_BUCK_ENA);
- if (ret < 0)
- return ret;
-
- mdelay(STPMIC1_DEFAULT_START_UP_DELAY_MS);
-
- /* Enable VREF */
- ret = pmic_clrsetbits(dev, STPMIC1_REFDDR_MAIN_CR,
- STPMIC1_VREF_ENA, STPMIC1_VREF_ENA);
- if (ret < 0)
- return ret;
-
- mdelay(STPMIC1_DEFAULT_START_UP_DELAY_MS);
-
- break;
-
- default:
- break;
- };
-
- return 0;
-}
-#endif
--
2.17.1
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