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// SPDX-License-Identifier: GPL-2.0+
#include <config.h>
#include <asm/global_data.h>
#include <asm/io.h>
#include <fsl_ddr_sdram.h>
DECLARE_GLOBAL_DATA_PTR;
#define DCFG_GPPORCR1 0x20
#define GPPORCR1_MEM_MASK (0x7 << 5)
#define GPPORCR1_MEM_512MB_CS0 (0x0 << 5)
#define GPPORCR1_MEM_1GB_CS0 (0x1 << 5)
#define GPPORCR1_MEM_2GB_CS0 (0x2 << 5)
#define GPPORCR1_MEM_4GB_CS0_1 (0x3 << 5)
#define GPPORCR1_MEM_4GB_CS0_2 (0x4 << 5)
#define GPPORCR1_MEM_8GB_CS0_1_2_3 (0x5 << 5)
#define GPPORCR1_MEM_8GB_CS0_1 (0x6 << 5)
static fsl_ddr_cfg_regs_t __maybe_unused ddr_cfg_regs = {
.cs[0].bnds = 0x0000007f,
.cs[0].config = 0x80044402,
.cs[1].bnds = 0x008000ff,
.cs[1].config = 0x80004402,
.timing_cfg_0 = 0x9011010c,
.timing_cfg_3 = 0x010c1000,
.timing_cfg_1 = 0xbcb48c66,
.timing_cfg_2 = 0x0fc0d118,
.ddr_sdram_cfg = 0xe70c000c,
.ddr_sdram_cfg_2 = 0x24401111,
.ddr_sdram_mode = 0x00441c70,
.ddr_sdram_mode_3 = 0x00001c70,
.ddr_sdram_mode_5 = 0x00001c70,
.ddr_sdram_mode_7 = 0x00001c70,
.ddr_sdram_mode_2 = 0x00180000,
.ddr_sdram_mode_4 = 0x00180000,
.ddr_sdram_mode_6 = 0x00180000,
.ddr_sdram_mode_8 = 0x00180000,
.ddr_sdram_interval = 0x0c30030c,
.ddr_data_init = 0xdeadbeef,
.ddr_sdram_clk_cntl = 0x02400000,
.timing_cfg_4 = 0x00000001,
.timing_cfg_5 = 0x04401400,
.ddr_zq_cntl = 0x89080600,
.ddr_wrlvl_cntl = 0x8675f606,
.ddr_wrlvl_cntl_2 = 0x04080700,
.ddr_wrlvl_cntl_3 = 0x00000009,
.ddr_cdr1 = 0x80040000,
.ddr_cdr2 = 0x0000bc01,
/* Erratum A-009942, set optimal CPO value */
.debug[28] = 0x00700040,
};
int fsl_initdram(void)
{
u32 gpporcr1 = in_le32(DCFG_BASE + DCFG_GPPORCR1);
phys_size_t dram_size;
switch (gpporcr1 & GPPORCR1_MEM_MASK) {
case GPPORCR1_MEM_2GB_CS0:
dram_size = 0x80000000;
ddr_cfg_regs.cs[1].bnds = 0;
ddr_cfg_regs.cs[1].config = 0;
break;
case GPPORCR1_MEM_4GB_CS0_1:
dram_size = 0x100000000ULL;
break;
case GPPORCR1_MEM_8GB_CS0_1:
dram_size = 0x200000000ULL;
ddr_cfg_regs.cs[0].bnds = 0x000000ff;
ddr_cfg_regs.cs[0].config = 0x80044403;
ddr_cfg_regs.cs[1].bnds = 0x010001ff;
ddr_cfg_regs.cs[1].config = 0x80044403;
break;
case GPPORCR1_MEM_512MB_CS0:
dram_size = 0x20000000;
fallthrough; /* for now */
case GPPORCR1_MEM_1GB_CS0:
dram_size = 0x40000000;
fallthrough; /* for now */
case GPPORCR1_MEM_4GB_CS0_2:
dram_size = 0x100000000ULL;
fallthrough; /* for now */
case GPPORCR1_MEM_8GB_CS0_1_2_3:
dram_size = 0x200000000ULL;
fallthrough; /* for now */
default:
panic("Unsupported memory configuration (%08x)\n",
gpporcr1 & GPPORCR1_MEM_MASK);
break;
}
if (!IS_ENABLED(CONFIG_SPL) || IS_ENABLED(CONFIG_SPL_BUILD))
fsl_ddr_set_memctl_regs(&ddr_cfg_regs, 0, 0);
gd->ram_size = dram_size;
return 0;
}
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