+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2014 Wandboard
* Author: Tungyi Lin <tungyilin1127@gmail.com>
* Richard Hu <hakahu@gmail.com>
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <asm/arch/clock.h>
#include <asm/arch/sys_proto.h>
#include <spl.h>
-DECLARE_GLOBAL_DATA_PTR;
-
#if defined(CONFIG_SPL_BUILD)
#include <asm/arch/mx6-ddr.h>
/*
#define IMX6DQ_DRIVE_STRENGTH 0x30
#define IMX6SDL_DRIVE_STRENGTH 0x28
+#define IMX6QP_DRIVE_STRENGTH 0x28
/* configure MX6Q/DUAL mmdc DDR io registers */
static struct mx6dq_iomux_ddr_regs mx6dq_ddr_ioregs = {
.dram_dqm7 = IMX6DQ_DRIVE_STRENGTH,
};
+/* configure MX6QP mmdc DDR io registers */
+static struct mx6dq_iomux_ddr_regs mx6qp_ddr_ioregs = {
+ .dram_sdclk_0 = IMX6QP_DRIVE_STRENGTH,
+ .dram_sdclk_1 = IMX6QP_DRIVE_STRENGTH,
+ .dram_cas = IMX6QP_DRIVE_STRENGTH,
+ .dram_ras = IMX6QP_DRIVE_STRENGTH,
+ .dram_reset = IMX6QP_DRIVE_STRENGTH,
+ .dram_sdcke0 = IMX6QP_DRIVE_STRENGTH,
+ .dram_sdcke1 = IMX6QP_DRIVE_STRENGTH,
+ .dram_sdba2 = 0x00000000,
+ .dram_sdodt0 = IMX6QP_DRIVE_STRENGTH,
+ .dram_sdodt1 = IMX6QP_DRIVE_STRENGTH,
+ .dram_sdqs0 = IMX6QP_DRIVE_STRENGTH,
+ .dram_sdqs1 = IMX6QP_DRIVE_STRENGTH,
+ .dram_sdqs2 = IMX6QP_DRIVE_STRENGTH,
+ .dram_sdqs3 = IMX6QP_DRIVE_STRENGTH,
+ .dram_sdqs4 = IMX6QP_DRIVE_STRENGTH,
+ .dram_sdqs5 = IMX6QP_DRIVE_STRENGTH,
+ .dram_sdqs6 = IMX6QP_DRIVE_STRENGTH,
+ .dram_sdqs7 = IMX6QP_DRIVE_STRENGTH,
+ .dram_dqm0 = IMX6QP_DRIVE_STRENGTH,
+ .dram_dqm1 = IMX6QP_DRIVE_STRENGTH,
+ .dram_dqm2 = IMX6QP_DRIVE_STRENGTH,
+ .dram_dqm3 = IMX6QP_DRIVE_STRENGTH,
+ .dram_dqm4 = IMX6QP_DRIVE_STRENGTH,
+ .dram_dqm5 = IMX6QP_DRIVE_STRENGTH,
+ .dram_dqm6 = IMX6QP_DRIVE_STRENGTH,
+ .dram_dqm7 = IMX6QP_DRIVE_STRENGTH,
+};
+
/* configure MX6Q/DUAL mmdc GRP io registers */
static struct mx6dq_iomux_grp_regs mx6dq_grp_ioregs = {
.grp_ddr_type = 0x000c0000,
.grp_b7ds = IMX6DQ_DRIVE_STRENGTH,
};
+/* configure MX6QP mmdc GRP io registers */
+static struct mx6dq_iomux_grp_regs mx6qp_grp_ioregs = {
+ .grp_ddr_type = 0x000c0000,
+ .grp_ddrmode_ctl = 0x00020000,
+ .grp_ddrpke = 0x00000000,
+ .grp_addds = IMX6QP_DRIVE_STRENGTH,
+ .grp_ctlds = IMX6QP_DRIVE_STRENGTH,
+ .grp_ddrmode = 0x00020000,
+ .grp_b0ds = IMX6QP_DRIVE_STRENGTH,
+ .grp_b1ds = IMX6QP_DRIVE_STRENGTH,
+ .grp_b2ds = IMX6QP_DRIVE_STRENGTH,
+ .grp_b3ds = IMX6QP_DRIVE_STRENGTH,
+ .grp_b4ds = IMX6QP_DRIVE_STRENGTH,
+ .grp_b5ds = IMX6QP_DRIVE_STRENGTH,
+ .grp_b6ds = IMX6QP_DRIVE_STRENGTH,
+ .grp_b7ds = IMX6QP_DRIVE_STRENGTH,
+};
+
/* configure MX6SOLO/DUALLITE mmdc DDR io registers */
struct mx6sdl_iomux_ddr_regs mx6sdl_ddr_ioregs = {
.dram_sdclk_0 = IMX6SDL_DRIVE_STRENGTH,
writel(0x00C03F3F, &ccm->CCGR0);
writel(0x0030FC03, &ccm->CCGR1);
writel(0x0FFFC000, &ccm->CCGR2);
- writel(0x3FF00000, &ccm->CCGR3);
+ writel(0x3FF03000, &ccm->CCGR3);
writel(0x00FFF300, &ccm->CCGR4);
writel(0x0F0000C3, &ccm->CCGR5);
writel(0x000003FF, &ccm->CCGR6);
}
+static void spl_dram_init_imx6qp_lpddr3(void)
+{
+ /* MMDC0_MDSCR set the Configuration request bit during MMDC set up */
+ writel(0x00008000, MMDC_P0_BASE_ADDR + 0x01c);
+ /* Calibrations - ZQ */
+ writel(0xa1390003, MMDC_P0_BASE_ADDR + 0x800);
+ /* write leveling */
+ writel(0x00060004, MMDC_P0_BASE_ADDR + 0x80c);
+ writel(0x000B0004, MMDC_P0_BASE_ADDR + 0x810);
+ writel(0x00000004, MMDC_P1_BASE_ADDR + 0x80c);
+ writel(0x00000000, MMDC_P1_BASE_ADDR + 0x810);
+ /*
+ * DQS gating, read delay, write delay calibration values
+ * based on calibration compare of 0x00ffff00
+ */
+ writel(0x03040314, MMDC_P0_BASE_ADDR + 0x83c);
+ writel(0x03080300, MMDC_P0_BASE_ADDR + 0x840);
+ writel(0x03000310, MMDC_P1_BASE_ADDR + 0x83c);
+ writel(0x0268023C, MMDC_P1_BASE_ADDR + 0x840);
+ writel(0x4034363A, MMDC_P0_BASE_ADDR + 0x848);
+ writel(0x36302C3C, MMDC_P1_BASE_ADDR + 0x848);
+ writel(0x3E3E4046, MMDC_P0_BASE_ADDR + 0x850);
+ writel(0x483A4844, MMDC_P1_BASE_ADDR + 0x850);
+ writel(0x33333333, MMDC_P0_BASE_ADDR + 0x81c);
+ writel(0x33333333, MMDC_P0_BASE_ADDR + 0x820);
+ writel(0x33333333, MMDC_P0_BASE_ADDR + 0x824);
+ writel(0x33333333, MMDC_P0_BASE_ADDR + 0x828);
+ writel(0x33333333, MMDC_P1_BASE_ADDR + 0x81c);
+ writel(0x33333333, MMDC_P1_BASE_ADDR + 0x820);
+ writel(0x33333333, MMDC_P1_BASE_ADDR + 0x824);
+ writel(0x33333333, MMDC_P1_BASE_ADDR + 0x828);
+ writel(0x24912489, MMDC_P0_BASE_ADDR + 0x8c0);
+ writel(0x24914452, MMDC_P1_BASE_ADDR + 0x8c0);
+ writel(0x00000800, MMDC_P0_BASE_ADDR + 0x8b8);
+ writel(0x00000800, MMDC_P1_BASE_ADDR + 0x8b8);
+ /* MMDC init: in DDR3, 64-bit mode, only MMDC0 is initiated */
+ writel(0x00020036, MMDC_P0_BASE_ADDR + 0x004);
+ writel(0x09444040, MMDC_P0_BASE_ADDR + 0x008);
+ writel(0x898E79A4, MMDC_P0_BASE_ADDR + 0x00c);
+ writel(0xDB538F64, MMDC_P0_BASE_ADDR + 0x010);
+ writel(0x01FF00DD, MMDC_P0_BASE_ADDR + 0x014);
+ writel(0x00011740, MMDC_P0_BASE_ADDR + 0x018);
+ writel(0x00008000, MMDC_P0_BASE_ADDR + 0x01c);
+ writel(0x000026D2, MMDC_P0_BASE_ADDR + 0x02c);
+ writel(0x008E1023, MMDC_P0_BASE_ADDR + 0x030);
+ writel(0x00000047, MMDC_P0_BASE_ADDR + 0x040);
+ writel(0x14420000, MMDC_P0_BASE_ADDR + 0x400);
+ writel(0x841A0000, MMDC_P0_BASE_ADDR + 0x000);
+ writel(0x00400c58, MMDC_P0_BASE_ADDR + 0x890);
+ /* add NOC DDR configuration */
+ writel(0x00000000, NOC_DDR_BASE_ADDR + 0x008);
+ writel(0x2871C39B, NOC_DDR_BASE_ADDR + 0x00c);
+ writel(0x000005B4, NOC_DDR_BASE_ADDR + 0x038);
+ writel(0x00000040, NOC_DDR_BASE_ADDR + 0x014);
+ writel(0x00000020, NOC_DDR_BASE_ADDR + 0x028);
+ writel(0x00000020, NOC_DDR_BASE_ADDR + 0x02c);
+ writel(0x02088032, MMDC_P0_BASE_ADDR + 0x01c);
+ writel(0x00008033, MMDC_P0_BASE_ADDR + 0x01c);
+ writel(0x00048031, MMDC_P0_BASE_ADDR + 0x01c);
+ writel(0x19308030, MMDC_P0_BASE_ADDR + 0x01c);
+ writel(0x04008040, MMDC_P0_BASE_ADDR + 0x01c);
+ writel(0x00007800, MMDC_P0_BASE_ADDR + 0x020);
+ writel(0x00022227, MMDC_P0_BASE_ADDR + 0x818);
+ writel(0x00022227, MMDC_P1_BASE_ADDR + 0x818);
+ writel(0x00025576, MMDC_P0_BASE_ADDR + 0x004);
+ writel(0x00011006, MMDC_P0_BASE_ADDR + 0x404);
+ writel(0x00000000, MMDC_P0_BASE_ADDR + 0x01c);
+}
+
static void spl_dram_init(void)
{
- if (is_cpu_type(MXC_CPU_MX6SOLO)) {
+ if (is_mx6dqp()) {
+ mx6dq_dram_iocfg(64, &mx6qp_ddr_ioregs, &mx6qp_grp_ioregs);
+ spl_dram_init_imx6qp_lpddr3();
+ } else if (is_cpu_type(MXC_CPU_MX6SOLO)) {
mx6sdl_dram_iocfg(32, &mx6sdl_ddr_ioregs, &mx6sdl_grp_ioregs);
mx6_dram_cfg(&mem_s, &mx6s_512m_mmdc_calib, &h5tq2g63dfr);
} else if (is_cpu_type(MXC_CPU_MX6DL)) {
mx6dq_dram_iocfg(64, &mx6dq_ddr_ioregs, &mx6dq_grp_ioregs);
mx6_dram_cfg(&mem_q, &mx6q_2g_mmdc_calib, &h5t04g63afr);
}
+
+ udelay(100);
}
void board_init_f(ulong dummy)
projects / u-boot / blobdiff