diff options
Diffstat (limited to 'src/soc/samsung/exynos5250/dmc.h')
| -rw-r--r-- | src/soc/samsung/exynos5250/dmc.h | 353 |
1 files changed, 353 insertions, 0 deletions
diff --git a/src/soc/samsung/exynos5250/dmc.h b/src/soc/samsung/exynos5250/dmc.h new file mode 100644 index 0000000000..6388316c5e --- /dev/null +++ b/src/soc/samsung/exynos5250/dmc.h @@ -0,0 +1,353 @@ +/* + * This file is part of the coreboot project. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef CPU_SAMSUNG_EXYNOS5250_DMC_H +#define CPU_SAMSUNG_EXYNOS5250_DMC_H + +#ifndef __ASSEMBLER__ + +#include "cpu.h" + +struct exynos5_dmc { + unsigned int concontrol; + unsigned int memcontrol; + unsigned int memconfig0; + unsigned int memconfig1; + unsigned int directcmd; + unsigned int prechconfig; + unsigned int phycontrol0; + unsigned char res1[0xc]; + unsigned int pwrdnconfig; + unsigned int timingpzq; + unsigned int timingref; + unsigned int timingrow; + unsigned int timingdata; + unsigned int timingpower; + unsigned int phystatus; + unsigned char res2[0x4]; + unsigned int chipstatus_ch0; + unsigned int chipstatus_ch1; + unsigned char res3[0x4]; + unsigned int mrstatus; + unsigned char res4[0x8]; + unsigned int qoscontrol0; + unsigned char resr5[0x4]; + unsigned int qoscontrol1; + unsigned char res6[0x4]; + unsigned int qoscontrol2; + unsigned char res7[0x4]; + unsigned int qoscontrol3; + unsigned char res8[0x4]; + unsigned int qoscontrol4; + unsigned char res9[0x4]; + unsigned int qoscontrol5; + unsigned char res10[0x4]; + unsigned int qoscontrol6; + unsigned char res11[0x4]; + unsigned int qoscontrol7; + unsigned char res12[0x4]; + unsigned int qoscontrol8; + unsigned char res13[0x4]; + unsigned int qoscontrol9; + unsigned char res14[0x4]; + unsigned int qoscontrol10; + unsigned char res15[0x4]; + unsigned int qoscontrol11; + unsigned char res16[0x4]; + unsigned int qoscontrol12; + unsigned char res17[0x4]; + unsigned int qoscontrol13; + unsigned char res18[0x4]; + unsigned int qoscontrol14; + unsigned char res19[0x4]; + unsigned int qoscontrol15; + unsigned char res20[0x14]; + unsigned int ivcontrol; + unsigned int wrtra_config; + unsigned int rdlvl_config; + unsigned char res21[0x8]; + unsigned int brbrsvconfig; + unsigned int brbqosconfig; + unsigned int membaseconfig0; + unsigned int membaseconfig1; + unsigned char res22[0xc]; + unsigned int wrlvl_config; + unsigned char res23[0xc]; + unsigned int perevcontrol; + unsigned int perev0config; + unsigned int perev1config; + unsigned int perev2config; + unsigned int perev3config; + unsigned char res24[0xdebc]; + unsigned int pmnc_ppc_a; + unsigned char res25[0xc]; + unsigned int cntens_ppc_a; + unsigned char res26[0xc]; + unsigned int cntenc_ppc_a; + unsigned char res27[0xc]; + unsigned int intens_ppc_a; + unsigned char res28[0xc]; + unsigned int intenc_ppc_a; + unsigned char res29[0xc]; + unsigned int flag_ppc_a; + unsigned char res30[0xac]; + unsigned int ccnt_ppc_a; + unsigned char res31[0xc]; + unsigned int pmcnt0_ppc_a; + unsigned char res32[0xc]; + unsigned int pmcnt1_ppc_a; + unsigned char res33[0xc]; + unsigned int pmcnt2_ppc_a; + unsigned char res34[0xc]; + unsigned int pmcnt3_ppc_a; +}; + +static struct exynos5_dmc * const exynos_dmc = (void *)EXYNOS5_DMC_CTRL_BASE; + +struct exynos5_phy_control { + unsigned int phy_con0; + unsigned int phy_con1; + unsigned int phy_con2; + unsigned int phy_con3; + unsigned int phy_con4; + unsigned char res1[4]; + unsigned int phy_con6; + unsigned char res2[4]; + unsigned int phy_con8; + unsigned int phy_con9; + unsigned int phy_con10; + unsigned char res3[4]; + unsigned int phy_con12; + unsigned int phy_con13; + unsigned int phy_con14; + unsigned int phy_con15; + unsigned int phy_con16; + unsigned char res4[4]; + unsigned int phy_con17; + unsigned int phy_con18; + unsigned int phy_con19; + unsigned int phy_con20; + unsigned int phy_con21; + unsigned int phy_con22; + unsigned int phy_con23; + unsigned int phy_con24; + unsigned int phy_con25; + unsigned int phy_con26; + unsigned int phy_con27; + unsigned int phy_con28; + unsigned int phy_con29; + unsigned int phy_con30; + unsigned int phy_con31; + unsigned int phy_con32; + unsigned int phy_con33; + unsigned int phy_con34; + unsigned int phy_con35; + unsigned int phy_con36; + unsigned int phy_con37; + unsigned int phy_con38; + unsigned int phy_con39; + unsigned int phy_con40; + unsigned int phy_con41; + unsigned int phy_con42; +}; + +static struct exynos5_phy_control * const exynos_phy0_control = + (void *)EXYNOS5_DMC_PHY0_BASE; +static struct exynos5_phy_control * const exynos_phy1_control = + (void *)EXYNOS5_DMC_PHY1_BASE; + +enum ddr_mode { + DDR_MODE_DDR2, + DDR_MODE_DDR3, + DDR_MODE_LPDDR2, + DDR_MODE_LPDDR3, + + DDR_MODE_COUNT, +}; + +/* For reasons unknown, people are in the habit of taking a 32-bit + * field with 2 possible values and packing it with, say, 2 bits. A + * non-robust encoding, using only 2 bits of a 32-bit field, is + * incredibly difficult to deal with when things go wrong, because + * there are a lot of things that get expressed as 0, 1, or 2. If + * you're scanning with jtag or dumping memory it is really hard to + * tell when you've hit the beginning of the struct. So, let's be a + * bit smart here. First, while it's common to let the enum count + * entries for you, when there are two of them, we can do the + * counting. And, let's set the values to something we can easily scan + * for in memory. Since '1' and '2' are rather common, we pick + * something that's actually of some value when things go wrong. This + * setup motivated by a use case: something's going wrong and having a + * manuf name of '1' or '2' is completely useless! + */ +enum mem_manuf { + MEM_MANUF_AUTODETECT, + MEM_MANUF_ELPIDA = 0xe7b1da, + MEM_MANUF_SAMSUNG = 0x5a5096, + + MEM_MANUF_COUNT = 2, // fancy that. +}; + +enum { + MEM_TIMINGS_MSR_COUNT = 4, +}; + +#define DMC_INTERLEAVE_SIZE 0x1f + +/* CONCONTROL register fields */ +#define CONCONTROL_DFI_INIT_START_SHIFT 28 +#define CONCONTROL_RD_FETCH_SHIFT 12 +#define CONCONTROL_RD_FETCH_MASK (0x7 << CONCONTROL_RD_FETCH_SHIFT) +#define CONCONTROL_AREF_EN_SHIFT 5 + +/* PRECHCONFIG register field */ +#define PRECHCONFIG_TP_CNT_SHIFT 24 + +/* PWRDNCONFIG register field */ +#define PWRDNCONFIG_DPWRDN_CYC_SHIFT 0 +#define PWRDNCONFIG_DSREF_CYC_SHIFT 16 + +/* PHY_CON0 register fields */ +#define PHY_CON0_T_WRRDCMD_SHIFT 17 +#define PHY_CON0_T_WRRDCMD_MASK (0x7 << PHY_CON0_T_WRRDCMD_SHIFT) +#define PHY_CON0_CTRL_DDR_MODE_SHIFT 11 + +/* PHY_CON1 register fields */ +#define PHY_CON1_RDLVL_RDDATA_ADJ_SHIFT 0 + +/* PHY_CON12 register fields */ +#define PHY_CON12_CTRL_START_POINT_SHIFT 24 +#define PHY_CON12_CTRL_INC_SHIFT 16 +#define PHY_CON12_CTRL_FORCE_SHIFT 8 +#define PHY_CON12_CTRL_START_SHIFT 6 +#define PHY_CON12_CTRL_START_MASK (1 << PHY_CON12_CTRL_START_SHIFT) +#define PHY_CON12_CTRL_DLL_ON_SHIFT 5 +#define PHY_CON12_CTRL_DLL_ON_MASK (1 << PHY_CON12_CTRL_DLL_ON_SHIFT) +#define PHY_CON12_CTRL_REF_SHIFT 1 + +/* PHY_CON16 register fields */ +#define PHY_CON16_ZQ_MODE_DDS_SHIFT 24 +#define PHY_CON16_ZQ_MODE_DDS_MASK (0x7 << PHY_CON16_ZQ_MODE_DDS_SHIFT) + +#define PHY_CON16_ZQ_MODE_TERM_SHIFT 21 +#define PHY_CON16_ZQ_MODE_TERM_MASK (0x7 << PHY_CON16_ZQ_MODE_TERM_SHIFT) + +#define PHY_CON16_ZQ_MODE_NOTERM_MASK (1 << 19) + +/* PHY_CON42 register fields */ +#define PHY_CON42_CTRL_BSTLEN_SHIFT 8 +#define PHY_CON42_CTRL_BSTLEN_MASK (0xff << PHY_CON42_CTRL_BSTLEN_SHIFT) + +#define PHY_CON42_CTRL_RDLAT_SHIFT 0 +#define PHY_CON42_CTRL_RDLAT_MASK (0x1f << PHY_CON42_CTRL_RDLAT_SHIFT) + +/* These are the memory timings for a particular memory type and speed */ +struct mem_timings { + enum mem_manuf mem_manuf; /* Memory manufacturer */ + enum ddr_mode mem_type; /* Memory type */ + unsigned int frequency_mhz; /* Frequency of memory in MHz */ + + /* Here follow the timing parameters for the selected memory */ + uint8_t apll_mdiv; + uint8_t apll_pdiv; + uint8_t apll_sdiv; + uint8_t mpll_mdiv; + uint8_t mpll_pdiv; + uint8_t mpll_sdiv; + uint8_t cpll_mdiv; + uint8_t cpll_pdiv; + uint8_t cpll_sdiv; + uint8_t gpll_pdiv; + uint16_t gpll_mdiv; + uint8_t gpll_sdiv; + uint8_t epll_mdiv; + uint8_t epll_pdiv; + uint8_t epll_sdiv; + uint8_t vpll_mdiv; + uint8_t vpll_pdiv; + uint8_t vpll_sdiv; + uint8_t bpll_mdiv; + uint8_t bpll_pdiv; + uint8_t bpll_sdiv; + uint8_t use_bpll; /* 1 to use BPLL for cdrex, 0 to use MPLL */ + uint8_t pclk_cdrex_ratio; + unsigned int direct_cmd_msr[MEM_TIMINGS_MSR_COUNT]; + + unsigned int timing_ref; + unsigned int timing_row; + unsigned int timing_data; + unsigned int timing_power; + + /* DQS, DQ, DEBUG offsets */ + unsigned int phy0_dqs; + unsigned int phy1_dqs; + unsigned int phy0_dq; + unsigned int phy1_dq; + uint8_t phy0_tFS; + uint8_t phy1_tFS; + uint8_t phy0_pulld_dqs; + uint8_t phy1_pulld_dqs; + + uint8_t lpddr3_ctrl_phy_reset; + uint8_t ctrl_start_point; + uint8_t ctrl_inc; + uint8_t ctrl_start; + uint8_t ctrl_dll_on; + uint8_t ctrl_ref; + + uint8_t ctrl_force; + uint8_t ctrl_rdlat; + uint8_t ctrl_bstlen; + + uint8_t fp_resync; + uint8_t iv_size; + uint8_t dfi_init_start; + uint8_t aref_en; + + uint8_t rd_fetch; + + uint8_t zq_mode_dds; + uint8_t zq_mode_term; + uint8_t zq_mode_noterm; /* 1 to allow termination disable */ + + unsigned int memcontrol; + unsigned int memconfig; + + unsigned int membaseconfig0; + unsigned int membaseconfig1; + unsigned int prechconfig_tp_cnt; + unsigned int dpwrdn_cyc; + unsigned int dsref_cyc; + unsigned int concontrol; + /* Channel and Chip Selection */ + uint8_t dmc_channels; /* number of memory channels */ + uint8_t chips_per_channel; /* number of chips per channel */ + uint8_t chips_to_configure; /* number of chips to configure */ + uint8_t send_zq_init; /* 1 to send this command */ + unsigned int impedance; /* drive strength impedance */ + uint8_t gate_leveling_enable; /* check gate leveling is enabled */ +}; + +/** + * Get the correct memory timings for our selected memory type and speed. + * + * @return pointer to the memory timings that we should use + */ +struct mem_timings *get_mem_timings(void); + +#endif +#endif |