refactor(st-ddr): reorganize generic and specific elements
stm32mp_ddrctl structure contains DDRCTRL registers definitions.
stm32mp_ddr_info contains general DDR information extracted from DT.
stm32mp_ddr_size moves to the generic side.
stm32mp1_ddr_priv contains platform private data.
stm32mp_ddr_dt_get_info() and stm32mp_ddr_dt_get_param() allow to
retrieve data from DT. They are located in new generic c/h files in
which stm32mp_ddr_param structure is declared. Platform makefile
is updated.
Adapt driver with this new classification.
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Change-Id: I4187376c9fff1a30e7a94407d188391547107997
diff --git a/include/drivers/st/stm32mp_ddr.h b/include/drivers/st/stm32mp_ddr.h
new file mode 100644
index 0000000..1efca42
--- /dev/null
+++ b/include/drivers/st/stm32mp_ddr.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2022, STMicroelectronics - All Rights Reserved
+ *
+ * SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
+ */
+
+#ifndef STM32MP_DDR_H
+#define STM32MP_DDR_H
+
+#include <platform_def.h>
+
+enum stm32mp_ddr_base_type {
+ DDR_BASE,
+ DDRPHY_BASE,
+ NONE_BASE
+};
+
+enum stm32mp_ddr_reg_type {
+ REG_REG,
+ REG_TIMING,
+ REG_PERF,
+ REG_MAP,
+ REGPHY_REG,
+ REGPHY_TIMING,
+ REG_TYPE_NB
+};
+
+struct stm32mp_ddr_reg_desc {
+ const char *name;
+ uint16_t offset; /* Offset for base address */
+ uint8_t par_offset; /* Offset for parameter array */
+};
+
+struct stm32mp_ddr_reg_info {
+ const char *name;
+ const struct stm32mp_ddr_reg_desc *desc;
+ uint8_t size;
+ enum stm32mp_ddr_base_type base;
+};
+
+struct stm32mp_ddr_size {
+ uint64_t base;
+ uint64_t size;
+};
+
+struct stm32mp_ddr_priv {
+ struct stm32mp_ddr_size info;
+ struct stm32mp_ddrctl *ctl;
+ struct stm32mp_ddrphy *phy;
+ uintptr_t pwr;
+ uintptr_t rcc;
+};
+
+struct stm32mp_ddr_info {
+ const char *name;
+ uint32_t speed; /* in kHZ */
+ uint32_t size; /* Memory size in byte = col * row * width */
+};
+
+#define TIMEOUT_US_1S 1000000U
+
+void stm32mp_ddr_set_reg(const struct stm32mp_ddr_priv *priv, enum stm32mp_ddr_reg_type type,
+ const void *param, const struct stm32mp_ddr_reg_info *ddr_registers);
+void stm32mp_ddr_start_sw_done(struct stm32mp_ddrctl *ctl);
+void stm32mp_ddr_wait_sw_done_ack(struct stm32mp_ddrctl *ctl);
+void stm32mp_ddr_enable_axi_port(struct stm32mp_ddrctl *ctl);
+int stm32mp_board_ddr_power_init(enum ddr_type ddr_type);
+
+#endif /* STM32MP_DDR_H */