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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 09:13:47 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 09:13:47 +0000
commit102b0d2daa97dae68d3eed54d8fe37a9cc38a892 (patch)
treebcf648efac40ca6139842707f0eba5a4496a6dd2 /plat/imx/imx8m/include/dram.h
parentInitial commit. (diff)
downloadarm-trusted-firmware-102b0d2daa97dae68d3eed54d8fe37a9cc38a892.tar.xz
arm-trusted-firmware-102b0d2daa97dae68d3eed54d8fe37a9cc38a892.zip
Adding upstream version 2.8.0+dfsg.upstream/2.8.0+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'plat/imx/imx8m/include/dram.h')
-rw-r--r--plat/imx/imx8m/include/dram.h78
1 files changed, 78 insertions, 0 deletions
diff --git a/plat/imx/imx8m/include/dram.h b/plat/imx/imx8m/include/dram.h
new file mode 100644
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--- /dev/null
+++ b/plat/imx/imx8m/include/dram.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright 2019-2022 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef DRAM_H
+#define DRAM_H
+
+#include <assert.h>
+
+#include <arch_helpers.h>
+#include <lib/utils_def.h>
+
+#include <ddrc.h>
+#include <platform_def.h>
+
+#define DDRC_LPDDR4 BIT(5)
+#define DDRC_DDR4 BIT(4)
+#define DDRC_DDR3L BIT(0)
+#define DDR_TYPE_MASK U(0x3f)
+#define ACTIVE_RANK_MASK U(0x3)
+
+/* reg & config param */
+struct dram_cfg_param {
+ unsigned int reg;
+ unsigned int val;
+};
+
+struct dram_timing_info {
+ /* umctl2 config */
+ struct dram_cfg_param *ddrc_cfg;
+ unsigned int ddrc_cfg_num;
+ /* ddrphy config */
+ struct dram_cfg_param *ddrphy_cfg;
+ unsigned int ddrphy_cfg_num;
+ /* ddr fsp train info */
+ struct dram_fsp_msg *fsp_msg;
+ unsigned int fsp_msg_num;
+ /* ddr phy trained CSR */
+ struct dram_cfg_param *ddrphy_trained_csr;
+ unsigned int ddrphy_trained_csr_num;
+ /* ddr phy PIE */
+ struct dram_cfg_param *ddrphy_pie;
+ unsigned int ddrphy_pie_num;
+ /* initialized fsp table */
+ unsigned int fsp_table[4];
+};
+
+struct dram_info {
+ int dram_type;
+ unsigned int num_rank;
+ uint32_t num_fsp;
+ int current_fsp;
+ int boot_fsp;
+ bool bypass_mode;
+ struct dram_timing_info *timing_info;
+ /* mr, emr, emr2, emr3, mr11, mr12, mr22, mr14 */
+ uint32_t mr_table[3][8];
+};
+
+extern struct dram_info dram_info;
+
+void dram_info_init(unsigned long dram_timing_base);
+void dram_umctl2_init(struct dram_timing_info *timing);
+void dram_phy_init(struct dram_timing_info *timing);
+
+/* dram retention */
+void dram_enter_retention(void);
+void dram_exit_retention(void);
+
+void dram_clock_switch(unsigned int target_drate, bool bypass_mode);
+
+/* dram frequency change */
+void lpddr4_swffc(struct dram_info *info, unsigned int init_fsp, unsigned int fsp_index);
+void ddr4_swffc(struct dram_info *dram_info, unsigned int pstate);
+
+#endif /* DRAM_H */