ddr: imx: Add i.MX9 DDR controller driver
Since i.MX9 uses same DDR PHY with i.MX8M, split the DDRPHY to a common
directory under imx, then use dedicated ddr controller driver for each
iMX9 and iMX8M.
The DDRPHY registers are space compressed, so it needs conversion to
access the DDRPHY address. Introduce a common PHY address remap function
for both iMX8M and iMX9 for all PHY registers accessing.
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/drivers/ddr/imx/imx9/Kconfig b/drivers/ddr/imx/imx9/Kconfig
new file mode 100644
index 0000000..a16ddc6
--- /dev/null
+++ b/drivers/ddr/imx/imx9/Kconfig
@@ -0,0 +1,21 @@
+menu "i.MX9 DDR controllers"
+ depends on ARCH_IMX9
+
+config IMX9_DRAM
+ bool "imx9 dram"
+ select IMX_SNPS_DDR_PHY
+
+config IMX9_LPDDR4X
+ bool "imx9 lpddr4 and lpddr4x"
+ select IMX9_DRAM
+ help
+ Select the i.MX9 LPDDR4/4X driver support on i.MX9 SOC.
+
+config SAVED_DRAM_TIMING_BASE
+ hex "Define the base address for saved dram timing"
+ help
+ after DRAM is trained, need to save the dram related timming
+ info into memory for low power use.
+ default 0x204DC000
+
+endmenu
diff --git a/drivers/ddr/imx/imx9/Makefile b/drivers/ddr/imx/imx9/Makefile
new file mode 100644
index 0000000..9403f98
--- /dev/null
+++ b/drivers/ddr/imx/imx9/Makefile
@@ -0,0 +1,10 @@
+#
+# Copyright 2018 NXP
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+ifdef CONFIG_SPL_BUILD
+obj-$(CONFIG_IMX9_DRAM) += ddr_init.o
+obj-y += ../phy/
+endif
diff --git a/drivers/ddr/imx/imx9/ddr_init.c b/drivers/ddr/imx/imx9/ddr_init.c
new file mode 100644
index 0000000..16eac651
--- /dev/null
+++ b/drivers/ddr/imx/imx9/ddr_init.c
@@ -0,0 +1,485 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2022 NXP
+ */
+
+#include <common.h>
+#include <errno.h>
+#include <log.h>
+#include <asm/io.h>
+#include <asm/arch/ddr.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/sys_proto.h>
+#include <linux/delay.h>
+
+void ddrphy_coldreset(void)
+{
+ /* dramphy_apb_n default 1 , assert -> 0, de_assert -> 1 */
+ /* dramphy_reset_n default 0 , assert -> 0, de_assert -> 1 */
+ /* dramphy_PwrOKIn default 0 , assert -> 1, de_assert -> 0 */
+
+ /* src_gen_dphy_apb_sw_rst_de_assert */
+ clrbits_le32(REG_SRC_DPHY_SW_CTRL, BIT(0));
+ /* src_gen_dphy_sw_rst_de_assert */
+ clrbits_le32(REG_SRC_DPHY_SINGLE_RESET_SW_CTRL, BIT(2));
+ /* src_gen_dphy_PwrOKIn_sw_rst_de_assert() */
+ setbits_le32(REG_SRC_DPHY_SINGLE_RESET_SW_CTRL, BIT(0));
+ mdelay(10);
+
+ /* src_gen_dphy_apb_sw_rst_assert */
+ setbits_le32(REG_SRC_DPHY_SW_CTRL, BIT(0));
+ /* src_gen_dphy_sw_rst_assert */
+ setbits_le32(REG_SRC_DPHY_SINGLE_RESET_SW_CTRL, BIT(2));
+ mdelay(10);
+ /* src_gen_dphy_PwrOKIn_sw_rst_assert */
+ clrbits_le32(REG_SRC_DPHY_SINGLE_RESET_SW_CTRL, BIT(0));
+ mdelay(10);
+
+ /* src_gen_dphy_apb_sw_rst_de_assert */
+ clrbits_le32(REG_SRC_DPHY_SW_CTRL, BIT(0));
+ /* src_gen_dphy_sw_rst_de_assert() */
+ clrbits_le32(REG_SRC_DPHY_SINGLE_RESET_SW_CTRL, BIT(2));
+}
+
+void check_ddrc_idle(void)
+{
+ u32 regval;
+
+ do {
+ regval = readl(REG_DDRDSR_2);
+ if (regval & BIT(31))
+ break;
+ } while (1);
+}
+
+void check_dfi_init_complete(void)
+{
+ u32 regval;
+
+ do {
+ regval = readl(REG_DDRDSR_2);
+ if (regval & BIT(2))
+ break;
+ } while (1);
+ setbits_le32(REG_DDRDSR_2, BIT(2));
+}
+
+void ddrc_config(struct dram_cfg_param *ddrc_config, int num)
+{
+ int i = 0;
+
+ for (i = 0; i < num; i++) {
+ writel(ddrc_config->val, (ulong)ddrc_config->reg);
+ ddrc_config++;
+ }
+}
+
+void get_trained_CDD(u32 fsp)
+{
+}
+
+int ddr_init(struct dram_timing_info *dram_timing)
+{
+ unsigned int initial_drate;
+ int ret;
+ u32 regval;
+
+ debug("DDRINFO: start DRAM init\n");
+
+ /* reset ddrphy */
+ ddrphy_coldreset();
+
+ debug("DDRINFO: cfg clk\n");
+
+ initial_drate = dram_timing->fsp_msg[0].drate;
+ /* default to the frequency point 0 clock */
+ ddrphy_init_set_dfi_clk(initial_drate);
+
+ /*
+ * Start PHY initialization and training by
+ * accessing relevant PUB registers
+ */
+ debug("DDRINFO:ddrphy config start\n");
+
+ ret = ddr_cfg_phy(dram_timing);
+ if (ret)
+ return ret;
+
+ debug("DDRINFO: ddrphy config done\n");
+
+ /* rogram the ddrc registers */
+ debug("DDRINFO: ddrc config start\n");
+ ddrc_config(dram_timing->ddrc_cfg, dram_timing->ddrc_cfg_num);
+ debug("DDRINFO: ddrc config done\n");
+
+ check_dfi_init_complete();
+
+ regval = readl(REG_DDR_SDRAM_CFG);
+ writel((regval | 0x80000000), REG_DDR_SDRAM_CFG);
+
+ check_ddrc_idle();
+
+ /* save the dram timing config into memory */
+ dram_config_save(dram_timing, CONFIG_SAVED_DRAM_TIMING_BASE);
+
+ return 0;
+}
+
+ulong ddrphy_addr_remap(u32 paddr_apb_from_ctlr)
+{
+ u32 paddr_apb_qual;
+ u32 paddr_apb_unqual_dec_22_13;
+ u32 paddr_apb_unqual_dec_19_13;
+ u32 paddr_apb_unqual_dec_12_1;
+ u32 paddr_apb_unqual;
+ u32 paddr_apb_phy;
+
+ paddr_apb_qual = (paddr_apb_from_ctlr << 1);
+ paddr_apb_unqual_dec_22_13 = ((paddr_apb_qual & 0x7fe000) >> 13);
+ paddr_apb_unqual_dec_12_1 = ((paddr_apb_qual & 0x1ffe) >> 1);
+
+ switch (paddr_apb_unqual_dec_22_13) {
+ case 0x000:
+ paddr_apb_unqual_dec_19_13 = 0x00;
+ break;
+ case 0x001:
+ paddr_apb_unqual_dec_19_13 = 0x01;
+ break;
+ case 0x002:
+ paddr_apb_unqual_dec_19_13 = 0x02;
+ break;
+ case 0x003:
+ paddr_apb_unqual_dec_19_13 = 0x03;
+ break;
+ case 0x004:
+ paddr_apb_unqual_dec_19_13 = 0x04;
+ break;
+ case 0x005:
+ paddr_apb_unqual_dec_19_13 = 0x05;
+ break;
+ case 0x006:
+ paddr_apb_unqual_dec_19_13 = 0x06;
+ break;
+ case 0x007:
+ paddr_apb_unqual_dec_19_13 = 0x07;
+ break;
+ case 0x008:
+ paddr_apb_unqual_dec_19_13 = 0x08;
+ break;
+ case 0x009:
+ paddr_apb_unqual_dec_19_13 = 0x09;
+ break;
+ case 0x00a:
+ paddr_apb_unqual_dec_19_13 = 0x0a;
+ break;
+ case 0x00b:
+ paddr_apb_unqual_dec_19_13 = 0x0b;
+ break;
+ case 0x100:
+ paddr_apb_unqual_dec_19_13 = 0x0c;
+ break;
+ case 0x101:
+ paddr_apb_unqual_dec_19_13 = 0x0d;
+ break;
+ case 0x102:
+ paddr_apb_unqual_dec_19_13 = 0x0e;
+ break;
+ case 0x103:
+ paddr_apb_unqual_dec_19_13 = 0x0f;
+ break;
+ case 0x104:
+ paddr_apb_unqual_dec_19_13 = 0x10;
+ break;
+ case 0x105:
+ paddr_apb_unqual_dec_19_13 = 0x11;
+ break;
+ case 0x106:
+ paddr_apb_unqual_dec_19_13 = 0x12;
+ break;
+ case 0x107:
+ paddr_apb_unqual_dec_19_13 = 0x13;
+ break;
+ case 0x108:
+ paddr_apb_unqual_dec_19_13 = 0x14;
+ break;
+ case 0x109:
+ paddr_apb_unqual_dec_19_13 = 0x15;
+ break;
+ case 0x10a:
+ paddr_apb_unqual_dec_19_13 = 0x16;
+ break;
+ case 0x10b:
+ paddr_apb_unqual_dec_19_13 = 0x17;
+ break;
+ case 0x200:
+ paddr_apb_unqual_dec_19_13 = 0x18;
+ break;
+ case 0x201:
+ paddr_apb_unqual_dec_19_13 = 0x19;
+ break;
+ case 0x202:
+ paddr_apb_unqual_dec_19_13 = 0x1a;
+ break;
+ case 0x203:
+ paddr_apb_unqual_dec_19_13 = 0x1b;
+ break;
+ case 0x204:
+ paddr_apb_unqual_dec_19_13 = 0x1c;
+ break;
+ case 0x205:
+ paddr_apb_unqual_dec_19_13 = 0x1d;
+ break;
+ case 0x206:
+ paddr_apb_unqual_dec_19_13 = 0x1e;
+ break;
+ case 0x207:
+ paddr_apb_unqual_dec_19_13 = 0x1f;
+ break;
+ case 0x208:
+ paddr_apb_unqual_dec_19_13 = 0x20;
+ break;
+ case 0x209:
+ paddr_apb_unqual_dec_19_13 = 0x21;
+ break;
+ case 0x20a:
+ paddr_apb_unqual_dec_19_13 = 0x22;
+ break;
+ case 0x20b:
+ paddr_apb_unqual_dec_19_13 = 0x23;
+ break;
+ case 0x300:
+ paddr_apb_unqual_dec_19_13 = 0x24;
+ break;
+ case 0x301:
+ paddr_apb_unqual_dec_19_13 = 0x25;
+ break;
+ case 0x302:
+ paddr_apb_unqual_dec_19_13 = 0x26;
+ break;
+ case 0x303:
+ paddr_apb_unqual_dec_19_13 = 0x27;
+ break;
+ case 0x304:
+ paddr_apb_unqual_dec_19_13 = 0x28;
+ break;
+ case 0x305:
+ paddr_apb_unqual_dec_19_13 = 0x29;
+ break;
+ case 0x306:
+ paddr_apb_unqual_dec_19_13 = 0x2a;
+ break;
+ case 0x307:
+ paddr_apb_unqual_dec_19_13 = 0x2b;
+ break;
+ case 0x308:
+ paddr_apb_unqual_dec_19_13 = 0x2c;
+ break;
+ case 0x309:
+ paddr_apb_unqual_dec_19_13 = 0x2d;
+ break;
+ case 0x30a:
+ paddr_apb_unqual_dec_19_13 = 0x2e;
+ break;
+ case 0x30b:
+ paddr_apb_unqual_dec_19_13 = 0x2f;
+ break;
+ case 0x010:
+ paddr_apb_unqual_dec_19_13 = 0x30;
+ break;
+ case 0x011:
+ paddr_apb_unqual_dec_19_13 = 0x31;
+ break;
+ case 0x012:
+ paddr_apb_unqual_dec_19_13 = 0x32;
+ break;
+ case 0x013:
+ paddr_apb_unqual_dec_19_13 = 0x33;
+ break;
+ case 0x014:
+ paddr_apb_unqual_dec_19_13 = 0x34;
+ break;
+ case 0x015:
+ paddr_apb_unqual_dec_19_13 = 0x35;
+ break;
+ case 0x016:
+ paddr_apb_unqual_dec_19_13 = 0x36;
+ break;
+ case 0x017:
+ paddr_apb_unqual_dec_19_13 = 0x37;
+ break;
+ case 0x018:
+ paddr_apb_unqual_dec_19_13 = 0x38;
+ break;
+ case 0x019:
+ paddr_apb_unqual_dec_19_13 = 0x39;
+ break;
+ case 0x110:
+ paddr_apb_unqual_dec_19_13 = 0x3a;
+ break;
+ case 0x111:
+ paddr_apb_unqual_dec_19_13 = 0x3b;
+ break;
+ case 0x112:
+ paddr_apb_unqual_dec_19_13 = 0x3c;
+ break;
+ case 0x113:
+ paddr_apb_unqual_dec_19_13 = 0x3d;
+ break;
+ case 0x114:
+ paddr_apb_unqual_dec_19_13 = 0x3e;
+ break;
+ case 0x115:
+ paddr_apb_unqual_dec_19_13 = 0x3f;
+ break;
+ case 0x116:
+ paddr_apb_unqual_dec_19_13 = 0x40;
+ break;
+ case 0x117:
+ paddr_apb_unqual_dec_19_13 = 0x41;
+ break;
+ case 0x118:
+ paddr_apb_unqual_dec_19_13 = 0x42;
+ break;
+ case 0x119:
+ paddr_apb_unqual_dec_19_13 = 0x43;
+ break;
+ case 0x210:
+ paddr_apb_unqual_dec_19_13 = 0x44;
+ break;
+ case 0x211:
+ paddr_apb_unqual_dec_19_13 = 0x45;
+ break;
+ case 0x212:
+ paddr_apb_unqual_dec_19_13 = 0x46;
+ break;
+ case 0x213:
+ paddr_apb_unqual_dec_19_13 = 0x47;
+ break;
+ case 0x214:
+ paddr_apb_unqual_dec_19_13 = 0x48;
+ break;
+ case 0x215:
+ paddr_apb_unqual_dec_19_13 = 0x49;
+ break;
+ case 0x216:
+ paddr_apb_unqual_dec_19_13 = 0x4a;
+ break;
+ case 0x217:
+ paddr_apb_unqual_dec_19_13 = 0x4b;
+ break;
+ case 0x218:
+ paddr_apb_unqual_dec_19_13 = 0x4c;
+ break;
+ case 0x219:
+ paddr_apb_unqual_dec_19_13 = 0x4d;
+ break;
+ case 0x310:
+ paddr_apb_unqual_dec_19_13 = 0x4e;
+ break;
+ case 0x311:
+ paddr_apb_unqual_dec_19_13 = 0x4f;
+ break;
+ case 0x312:
+ paddr_apb_unqual_dec_19_13 = 0x50;
+ break;
+ case 0x313:
+ paddr_apb_unqual_dec_19_13 = 0x51;
+ break;
+ case 0x314:
+ paddr_apb_unqual_dec_19_13 = 0x52;
+ break;
+ case 0x315:
+ paddr_apb_unqual_dec_19_13 = 0x53;
+ break;
+ case 0x316:
+ paddr_apb_unqual_dec_19_13 = 0x54;
+ break;
+ case 0x317:
+ paddr_apb_unqual_dec_19_13 = 0x55;
+ break;
+ case 0x318:
+ paddr_apb_unqual_dec_19_13 = 0x56;
+ break;
+ case 0x319:
+ paddr_apb_unqual_dec_19_13 = 0x57;
+ break;
+ case 0x020:
+ paddr_apb_unqual_dec_19_13 = 0x58;
+ break;
+ case 0x120:
+ paddr_apb_unqual_dec_19_13 = 0x59;
+ break;
+ case 0x220:
+ paddr_apb_unqual_dec_19_13 = 0x5a;
+ break;
+ case 0x320:
+ paddr_apb_unqual_dec_19_13 = 0x5b;
+ break;
+ case 0x040:
+ paddr_apb_unqual_dec_19_13 = 0x5c;
+ break;
+ case 0x140:
+ paddr_apb_unqual_dec_19_13 = 0x5d;
+ break;
+ case 0x240:
+ paddr_apb_unqual_dec_19_13 = 0x5e;
+ break;
+ case 0x340:
+ paddr_apb_unqual_dec_19_13 = 0x5f;
+ break;
+ case 0x050:
+ paddr_apb_unqual_dec_19_13 = 0x60;
+ break;
+ case 0x051:
+ paddr_apb_unqual_dec_19_13 = 0x61;
+ break;
+ case 0x052:
+ paddr_apb_unqual_dec_19_13 = 0x62;
+ break;
+ case 0x053:
+ paddr_apb_unqual_dec_19_13 = 0x63;
+ break;
+ case 0x054:
+ paddr_apb_unqual_dec_19_13 = 0x64;
+ break;
+ case 0x055:
+ paddr_apb_unqual_dec_19_13 = 0x65;
+ break;
+ case 0x056:
+ paddr_apb_unqual_dec_19_13 = 0x66;
+ break;
+ case 0x057:
+ paddr_apb_unqual_dec_19_13 = 0x67;
+ break;
+ case 0x070:
+ paddr_apb_unqual_dec_19_13 = 0x68;
+ break;
+ case 0x090:
+ paddr_apb_unqual_dec_19_13 = 0x69;
+ break;
+ case 0x190:
+ paddr_apb_unqual_dec_19_13 = 0x6a;
+ break;
+ case 0x290:
+ paddr_apb_unqual_dec_19_13 = 0x6b;
+ break;
+ case 0x390:
+ paddr_apb_unqual_dec_19_13 = 0x6c;
+ break;
+ case 0x0c0:
+ paddr_apb_unqual_dec_19_13 = 0x6d;
+ break;
+ case 0x0d0:
+ paddr_apb_unqual_dec_19_13 = 0x6e;
+ break;
+ default:
+ paddr_apb_unqual_dec_19_13 = 0x00;
+ break;
+ }
+
+ paddr_apb_unqual = ((paddr_apb_unqual_dec_19_13 << 13) | (paddr_apb_unqual_dec_12_1 << 1));
+
+ paddr_apb_phy = (paddr_apb_unqual << 1);
+
+ return paddr_apb_phy;
+}