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exynos/snow: Move core/memory clock-related and board ID code

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This patch moves ARM core and DRAM timing functions around to simplify
the dependencies for system_clock_init().

The original code was architected such that the system_clock_init()
function called other functions to obtain core and memory timings.
Due to the way memory timing information must be obtained on Snow,
which entails decoding platform-specific board straps, the bottom-
up approach resulted in having the low-level clock init code
implicitly depend on board and vendor-specific info:

main()
  ->system_clock_init()
    -> get_arm_ratios()
       -> CPU-specific code
    -> clock_get_mem_timings()
       -> board_get_revision()
          -> read GPIOs (3-state logic)
          -> Decode GPIOs in a vendor-specific manner
       -> Choose memory timings from module-specific look-up table
  ...then proceed to init clocks
...come back to main()

The new approach gathers all board and vendor-specific info in a
more appropriate location and passes it into system_clock_init():
main()
  -> get_arm_ratios()
     -> CPU-specific code
  -> get_mem_timings()
     -> board_get_config()
        -> read GPIOs (3-state logic)
        -> Decode GPIOs in a vendor-specific manner
     -> Choose memory timings from module-specific look-up table
  -> system_clock_init()
...back to main()

Change-Id: Ie237ebff76fc2d8a4d2f4577a226ac3909e4d4e8
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/2271
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
David Hendricks 2013-02-03 18:09:58 -08:00 • committed by Stefan Reinauer
commit 0d4f97e270
11 changed files with 827 additions and 1256 deletions
Download patch file Download diff file Expand all files Collapse all files

6
src/mainboard/google/snow/Makefile.inc
View file

@ -17,6 +17,12 @@
## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
##
# needed for system_clock_init()
bootblock-y += mainboard.c
bootblock-y += memory.c
romstage-y += mainboard.c
romstage-y += memory.c
romstage-y += romstage.c
# ramstage-y += ec.c

394
src/mainboard/google/snow/bootblock.c
View file

@ -345,393 +345,6 @@ static void power_init(void)
REG_ENABLE, MAX77686_MV);
}
/* FIXME(dhendrix): this will be removed in a follow-up patch */
struct mem_timings my_mem_timings[] = {
{
.mem_manuf = MEM_MANUF_ELPIDA,
.mem_type = DDR_MODE_DDR3,
.frequency_mhz = 800,
.mpll_mdiv = 0x64,
.mpll_pdiv = 0x3,
.mpll_sdiv = 0x0,
.cpll_mdiv = 0xde,
.cpll_pdiv = 0x4,
.cpll_sdiv = 0x2,
.gpll_mdiv = 0x215,
.gpll_pdiv = 0xc,
.gpll_sdiv = 0x1,
.epll_mdiv = 0x60,
.epll_pdiv = 0x3,
.epll_sdiv = 0x3,
.vpll_mdiv = 0x96,
.vpll_pdiv = 0x3,
.vpll_sdiv = 0x2,
.bpll_mdiv = 0x64,
.bpll_pdiv = 0x3,
.bpll_sdiv = 0x0,
.use_bpll = 0,
.pclk_cdrex_ratio = 0x5,
.direct_cmd_msr = {
0x00020018, 0x00030000, 0x00010042, 0x00000d70
},
.timing_ref = 0x000000bb,
.timing_row = 0x8c36660f,
.timing_data = 0x3630580b,
.timing_power = 0x41000a44,
.phy0_dqs = 0x08080808,
.phy1_dqs = 0x08080808,
.phy0_dq = 0x08080808,
.phy1_dq = 0x08080808,
.phy0_tFS = 0x4,
.phy1_tFS = 0x4,
.phy0_pulld_dqs = 0xf,
.phy1_pulld_dqs = 0xf,
.lpddr3_ctrl_phy_reset = 0x1,
.ctrl_start_point = 0x10,
.ctrl_inc = 0x10,
.ctrl_start = 0x1,
.ctrl_dll_on = 0x1,
.ctrl_ref = 0x8,
.ctrl_force = 0x1a,
.ctrl_rdlat = 0x0b,
.ctrl_bstlen = 0x08,
.fp_resync = 0x8,
.iv_size = 0x7,
.dfi_init_start = 1,
.aref_en = 1,
.rd_fetch = 0x3,
.zq_mode_dds = 0x7,
.zq_mode_term = 0x1,
.zq_mode_noterm = 0,
/*
* Dynamic Clock: Always Running
* Memory Burst length: 8
* Number of chips: 1
* Memory Bus width: 32 bit
* Memory Type: DDR3
* Additional Latancy for PLL: 0 Cycle
*/
.memcontrol = DMC_MEMCONTROL_CLK_STOP_DISABLE |
DMC_MEMCONTROL_DPWRDN_DISABLE |
DMC_MEMCONTROL_DPWRDN_ACTIVE_PRECHARGE |
DMC_MEMCONTROL_TP_DISABLE |
DMC_MEMCONTROL_DSREF_ENABLE |
DMC_MEMCONTROL_ADD_LAT_PALL_CYCLE(0) |
DMC_MEMCONTROL_MEM_TYPE_DDR3 |
DMC_MEMCONTROL_MEM_WIDTH_32BIT |
DMC_MEMCONTROL_NUM_CHIP_1 |
DMC_MEMCONTROL_BL_8 |
DMC_MEMCONTROL_PZQ_DISABLE |
DMC_MEMCONTROL_MRR_BYTE_7_0,
.memconfig = DMC_MEMCONFIGx_CHIP_MAP_INTERLEAVED |
DMC_MEMCONFIGx_CHIP_COL_10 |
DMC_MEMCONFIGx_CHIP_ROW_15 |
DMC_MEMCONFIGx_CHIP_BANK_8,
.membaseconfig0 = DMC_MEMBASECONFIG_VAL(0x40),
.membaseconfig1 = DMC_MEMBASECONFIG_VAL(0x80),
.prechconfig_tp_cnt = 0xff,
.dpwrdn_cyc = 0xff,
.dsref_cyc = 0xffff,
.concontrol = DMC_CONCONTROL_DFI_INIT_START_DISABLE |
DMC_CONCONTROL_TIMEOUT_LEVEL0 |
DMC_CONCONTROL_RD_FETCH_DISABLE |
DMC_CONCONTROL_EMPTY_DISABLE |
DMC_CONCONTROL_AREF_EN_DISABLE |
DMC_CONCONTROL_IO_PD_CON_DISABLE,
.dmc_channels = 2,
.chips_per_channel = 2,
.chips_to_configure = 1,
.send_zq_init = 1,
.impedance = IMP_OUTPUT_DRV_30_OHM,
.gate_leveling_enable = 0,
},
};
/* FIXME(dhendrix): this will be removed in a follow-up patch */
struct arm_clk_ratios my_arm_clk_ratios[] = {
{
.arm_freq_mhz = 1700,
.apll_mdiv = 0x1a9,
.apll_pdiv = 0x6,
.apll_sdiv = 0x0,
.arm2_ratio = 0x0,
.apll_ratio = 0x3,
.pclk_dbg_ratio = 0x1,
.atb_ratio = 0x6,
.periph_ratio = 0x7,
.acp_ratio = 0x7,
.cpud_ratio = 0x3,
.arm_ratio = 0x0,
}
};
static void clock_init(void)
{
struct exynos5_clock *clk = (struct exynos5_clock *)EXYNOS5_CLOCK_BASE;
struct exynos5_mct_regs *mct_regs =
(struct exynos5_mct_regs *)EXYNOS5_MULTI_CORE_TIMER_BASE;
struct mem_timings *mem = &my_mem_timings[0];
struct arm_clk_ratios *arm_clk_ratio = &my_arm_clk_ratios[0];
u32 val, tmp;
/* Turn on the MCT as early as possible. */
mct_regs->g_tcon |= (1 << 8);
// mem = clock_get_mem_timings();
// arm_clk_ratio = get_arm_ratios();
clrbits_le32(&clk->src_cpu, MUX_APLL_SEL_MASK);
do {
val = readl(&clk->mux_stat_cpu);
} while ((val | MUX_APLL_SEL_MASK) != val);
clrbits_le32(&clk->src_core1, MUX_MPLL_SEL_MASK);
do {
val = readl(&clk->mux_stat_core1);
} while ((val | MUX_MPLL_SEL_MASK) != val);
clrbits_le32(&clk->src_top2, MUX_CPLL_SEL_MASK);
clrbits_le32(&clk->src_top2, MUX_EPLL_SEL_MASK);
clrbits_le32(&clk->src_top2, MUX_VPLL_SEL_MASK);
clrbits_le32(&clk->src_top2, MUX_GPLL_SEL_MASK);
tmp = MUX_CPLL_SEL_MASK | MUX_EPLL_SEL_MASK | MUX_VPLL_SEL_MASK
| MUX_GPLL_SEL_MASK;
do {
val = readl(&clk->mux_stat_top2);
} while ((val | tmp) != val);
clrbits_le32(&clk->src_cdrex, MUX_BPLL_SEL_MASK);
do {
val = readl(&clk->mux_stat_cdrex);
} while ((val | MUX_BPLL_SEL_MASK) != val);
/* PLL locktime */
writel(APLL_LOCK_VAL, &clk->apll_lock);
writel(MPLL_LOCK_VAL, &clk->mpll_lock);
writel(BPLL_LOCK_VAL, &clk->bpll_lock);
writel(CPLL_LOCK_VAL, &clk->cpll_lock);
writel(GPLL_LOCK_VAL, &clk->gpll_lock);
writel(EPLL_LOCK_VAL, &clk->epll_lock);
writel(VPLL_LOCK_VAL, &clk->vpll_lock);
writel(CLK_REG_DISABLE, &clk->pll_div2_sel);
writel(MUX_HPM_SEL_MASK, &clk->src_cpu);
do {
val = readl(&clk->mux_stat_cpu);
} while ((val | HPM_SEL_SCLK_MPLL) != val);
val = arm_clk_ratio->arm2_ratio << 28
| arm_clk_ratio->apll_ratio << 24
| arm_clk_ratio->pclk_dbg_ratio << 20
| arm_clk_ratio->atb_ratio << 16
| arm_clk_ratio->periph_ratio << 12
| arm_clk_ratio->acp_ratio << 8
| arm_clk_ratio->cpud_ratio << 4
| arm_clk_ratio->arm_ratio;
writel(val, &clk->div_cpu0);
do {
val = readl(&clk->div_stat_cpu0);
} while (0 != val);
writel(CLK_DIV_CPU1_VAL, &clk->div_cpu1);
do {
val = readl(&clk->div_stat_cpu1);
} while (0 != val);
/* Set APLL */
writel(APLL_CON1_VAL, &clk->apll_con1);
val = set_pll(arm_clk_ratio->apll_mdiv, arm_clk_ratio->apll_pdiv,
arm_clk_ratio->apll_sdiv);
writel(val, &clk->apll_con0);
while ((readl(&clk->apll_con0) & APLL_CON0_LOCKED) == 0)
;
/* Set MPLL */
writel(MPLL_CON1_VAL, &clk->mpll_con1);
val = set_pll(mem->mpll_mdiv, mem->mpll_pdiv, mem->mpll_sdiv);
writel(val, &clk->mpll_con0);
while ((readl(&clk->mpll_con0) & MPLL_CON0_LOCKED) == 0)
;
/*
* Configure MUX_MPLL_FOUT to choose the direct clock source
* path and avoid the fixed DIV/2 block to save power
*/
setbits_le32(&clk->pll_div2_sel, MUX_MPLL_FOUT_SEL);
/* Set BPLL */
if (mem->use_bpll) {
writel(BPLL_CON1_VAL, &clk->bpll_con1);
val = set_pll(mem->bpll_mdiv, mem->bpll_pdiv, mem->bpll_sdiv);
writel(val, &clk->bpll_con0);
while ((readl(&clk->bpll_con0) & BPLL_CON0_LOCKED) == 0)
;
setbits_le32(&clk->pll_div2_sel, MUX_BPLL_FOUT_SEL);
}
/* Set CPLL */
writel(CPLL_CON1_VAL, &clk->cpll_con1);
val = set_pll(mem->cpll_mdiv, mem->cpll_pdiv, mem->cpll_sdiv);
writel(val, &clk->cpll_con0);
while ((readl(&clk->cpll_con0) & CPLL_CON0_LOCKED) == 0)
;
/* Set GPLL */
writel(GPLL_CON1_VAL, &clk->gpll_con1);
val = set_pll(mem->gpll_mdiv, mem->gpll_pdiv, mem->gpll_sdiv);
writel(val, &clk->gpll_con0);
while ((readl(&clk->gpll_con0) & GPLL_CON0_LOCKED) == 0)
;
/* Set EPLL */
writel(EPLL_CON2_VAL, &clk->epll_con2);
writel(EPLL_CON1_VAL, &clk->epll_con1);
val = set_pll(mem->epll_mdiv, mem->epll_pdiv, mem->epll_sdiv);
writel(val, &clk->epll_con0);
while ((readl(&clk->epll_con0) & EPLL_CON0_LOCKED) == 0)
;
/* Set VPLL */
writel(VPLL_CON2_VAL, &clk->vpll_con2);
writel(VPLL_CON1_VAL, &clk->vpll_con1);
val = set_pll(mem->vpll_mdiv, mem->vpll_pdiv, mem->vpll_sdiv);
writel(val, &clk->vpll_con0);
while ((readl(&clk->vpll_con0) & VPLL_CON0_LOCKED) == 0)
;
writel(CLK_SRC_CORE0_VAL, &clk->src_core0);
writel(CLK_DIV_CORE0_VAL, &clk->div_core0);
while (readl(&clk->div_stat_core0) != 0)
;
writel(CLK_DIV_CORE1_VAL, &clk->div_core1);
while (readl(&clk->div_stat_core1) != 0)
;
writel(CLK_DIV_SYSRGT_VAL, &clk->div_sysrgt);
while (readl(&clk->div_stat_sysrgt) != 0)
;
writel(CLK_DIV_ACP_VAL, &clk->div_acp);
while (readl(&clk->div_stat_acp) != 0)
;
writel(CLK_DIV_SYSLFT_VAL, &clk->div_syslft);
while (readl(&clk->div_stat_syslft) != 0)
;
writel(CLK_SRC_TOP0_VAL, &clk->src_top0);
writel(CLK_SRC_TOP1_VAL, &clk->src_top1);
writel(TOP2_VAL, &clk->src_top2);
writel(CLK_SRC_TOP3_VAL, &clk->src_top3);
writel(CLK_DIV_TOP0_VAL, &clk->div_top0);
while (readl(&clk->div_stat_top0))
;
writel(CLK_DIV_TOP1_VAL, &clk->div_top1);
while (readl(&clk->div_stat_top1))
;
writel(CLK_SRC_LEX_VAL, &clk->src_lex);
while (1) {
val = readl(&clk->mux_stat_lex);
if (val == (val | 1))
break;
}
writel(CLK_DIV_LEX_VAL, &clk->div_lex);
while (readl(&clk->div_stat_lex))
;
writel(CLK_DIV_R0X_VAL, &clk->div_r0x);
while (readl(&clk->div_stat_r0x))
;
writel(CLK_DIV_R0X_VAL, &clk->div_r0x);
while (readl(&clk->div_stat_r0x))
;
writel(CLK_DIV_R1X_VAL, &clk->div_r1x);
while (readl(&clk->div_stat_r1x))
;
if (mem->use_bpll) {
writel(MUX_BPLL_SEL_MASK | MUX_MCLK_CDREX_SEL |
MUX_MCLK_DPHY_SEL, &clk->src_cdrex);
} else {
writel(CLK_REG_DISABLE, &clk->src_cdrex);
}
writel(CLK_DIV_CDREX_VAL, &clk->div_cdrex);
while (readl(&clk->div_stat_cdrex))
;
val = readl(&clk->src_cpu);
val |= CLK_SRC_CPU_VAL;
writel(val, &clk->src_cpu);
val = readl(&clk->src_top2);
val |= CLK_SRC_TOP2_VAL;
writel(val, &clk->src_top2);
val = readl(&clk->src_core1);
val |= CLK_SRC_CORE1_VAL;
writel(val, &clk->src_core1);
writel(CLK_SRC_FSYS0_VAL, &clk->src_fsys);
writel(CLK_DIV_FSYS0_VAL, &clk->div_fsys0);
while (readl(&clk->div_stat_fsys0))
;
writel(CLK_REG_DISABLE, &clk->clkout_cmu_cpu);
writel(CLK_REG_DISABLE, &clk->clkout_cmu_core);
writel(CLK_REG_DISABLE, &clk->clkout_cmu_acp);
writel(CLK_REG_DISABLE, &clk->clkout_cmu_top);
writel(CLK_REG_DISABLE, &clk->clkout_cmu_lex);
writel(CLK_REG_DISABLE, &clk->clkout_cmu_r0x);
writel(CLK_REG_DISABLE, &clk->clkout_cmu_r1x);
writel(CLK_REG_DISABLE, &clk->clkout_cmu_cdrex);
writel(CLK_SRC_PERIC0_VAL, &clk->src_peric0);
writel(CLK_DIV_PERIC0_VAL, &clk->div_peric0);
writel(CLK_SRC_PERIC1_VAL, &clk->src_peric1);
writel(CLK_DIV_PERIC1_VAL, &clk->div_peric1);
writel(CLK_DIV_PERIC2_VAL, &clk->div_peric2);
writel(SCLK_SRC_ISP_VAL, &clk->sclk_src_isp);
writel(SCLK_DIV_ISP_VAL, &clk->sclk_div_isp);
writel(CLK_DIV_ISP0_VAL, &clk->div_isp0);
writel(CLK_DIV_ISP1_VAL, &clk->div_isp1);
writel(CLK_DIV_ISP2_VAL, &clk->div_isp2);
/* FIMD1 SRC CLK SELECTION */
writel(CLK_SRC_DISP1_0_VAL, &clk->src_disp1_0);
val = MMC2_PRE_RATIO_VAL << MMC2_PRE_RATIO_OFFSET
| MMC2_RATIO_VAL << MMC2_RATIO_OFFSET
| MMC3_PRE_RATIO_VAL << MMC3_PRE_RATIO_OFFSET
| MMC3_RATIO_VAL << MMC3_RATIO_OFFSET;
writel(val, &clk->div_fsys2);
}
#include <console/vtxprintf.h>
#include <string.h>
#define ZEROPAD 1 /* pad with zero */
@ -1025,12 +638,17 @@ int do_printk(int msg_level, const char *fmt, ...)
void bootblock_mainboard_init(void);
void bootblock_mainboard_init(void)
{
struct mem_timings *mem;
struct arm_clk_ratios *arm_ratios;
/* FIXME: we should not need UART in bootblock, this is only
done for testing purposes */
i2c_set_early_reg(I2C0_BASE);
i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
power_init();
clock_init();
mem = get_mem_timings();
arm_ratios = get_arm_clk_ratios();
system_clock_init(mem, arm_ratios);
do_serial();
printk(BIOS_INFO, "%s: UART initialized\n", __func__);

52
src/mainboard/google/snow/mainboard.c
View file

@ -1,5 +1,5 @@
/*
* Copyright (C) 2012 The ChromeOS Authors
* Copyright (C) 2012 Google Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
@ -17,18 +17,60 @@
* MA 02111-1307 USA
*/
#include <stdlib.h>
#include <gpio.h>
#include <device/device.h>
#include <console/console.h>
// mainboard_enable is executed as first thing after
// enumerate_buses().
#include <cpu/samsung/exynos5-common/gpio.h>
#include <cpu/samsung/exynos5250/gpio.h>
static void mainboard_enable(device_t dev)
#include "mainboard.h"
#define SNOW_BOARD_ID0_GPIO 88 /* GPD0, pin 0 */
#define SNOW_BOARD_ID1_GPIO 89 /* GPD0, pin 1 */
struct {
enum mvl3 id0, id1;
enum snow_board_config config;
} snow_id_map[] = {
/* ID0 ID1 config */
{ LOGIC_0, LOGIC_0, SNOW_CONFIG_SAMSUNG_MP },
{ LOGIC_0, LOGIC_1, SNOW_CONFIG_ELPIDA_MP },
{ LOGIC_1, LOGIC_0, SNOW_CONFIG_SAMSUNG_DVT },
{ LOGIC_1, LOGIC_1, SNOW_CONFIG_ELPIDA_DVT },
{ LOGIC_0, LOGIC_Z, SNOW_CONFIG_SAMSUNG_PVT },
{ LOGIC_1, LOGIC_Z, SNOW_CONFIG_ELPIDA_PVT },
{ LOGIC_Z, LOGIC_0, SNOW_CONFIG_SAMSUNG_MP },
{ LOGIC_Z, LOGIC_Z, SNOW_CONFIG_ELPIDA_MP },
{ LOGIC_Z, LOGIC_1, SNOW_CONFIG_RSVD },
};
int board_get_config(void)
{
//dev->ops->init = mainboard_init;
int i;
int id0, id1;
enum snow_board_config config = SNOW_CONFIG_UNKNOWN;
id0 = gpio_read_mvl3(SNOW_BOARD_ID0_GPIO);
id1 = gpio_read_mvl3(SNOW_BOARD_ID1_GPIO);
if (id0 < 0 || id1 < 0)
return -1;
printk(BIOS_DEBUG, "%s: id0: %u, id1: %u\n", __func__, id0, id1);
for (i = 0; i < ARRAY_SIZE(snow_id_map); i++) {
if (id0 == snow_id_map[i].id0 && id1 == snow_id_map[i].id1) {
config = snow_id_map[i].config;
break;
}
}
return config;
}
#if 0
struct chip_operations mainboard_ops = {
.name = "Samsung/Google ARM ChromeBook",
.enable_dev = mainboard_enable,
};
#endif

38
src/mainboard/google/snow/mainboard.h Normal file
View file

@ -0,0 +1,38 @@
/*
* Copyright (C) 2013 Google Inc.
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef MAINBOARD_H
#define MAINBOARD_H
enum snow_board_config {
SNOW_CONFIG_UNKNOWN = -1,
SNOW_CONFIG_SAMSUNG_EVT,
SNOW_CONFIG_ELPIDA_EVT,
SNOW_CONFIG_SAMSUNG_DVT,
SNOW_CONFIG_ELPIDA_DVT,
SNOW_CONFIG_SAMSUNG_PVT,
SNOW_CONFIG_ELPIDA_PVT,
SNOW_CONFIG_SAMSUNG_MP,
SNOW_CONFIG_ELPIDA_MP,
SNOW_CONFIG_RSVD,
};
int board_get_config(void);
#endif /* MAINBOARD_H */

494
src/mainboard/google/snow/memory.c Normal file
View file

@ -0,0 +1,494 @@
/*
* This file is part of the coreboot project. It is based off code
* from Das U-Boot.
*
* Copyright (C) 2012 Samsung Electronics
* Copyright (C) 2013 The ChromiumOS Authors.
*
* 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
*/
#include <stddef.h>
#include <stdlib.h>
#include <console/console.h>
#include <cpu/samsung/exynos5250/setup.h>
#include <cpu/samsung/exynos5250/dmc.h>
#include <cpu/samsung/exynos5250/clock_init.h>
#include "mainboard.h"
struct mem_timings mem_timings[] = {
{
.mem_manuf = MEM_MANUF_ELPIDA,
.mem_type = DDR_MODE_DDR3,
.frequency_mhz = 800,
.mpll_mdiv = 0x64,
.mpll_pdiv = 0x3,
.mpll_sdiv = 0x0,
.cpll_mdiv = 0xde,
.cpll_pdiv = 0x4,
.cpll_sdiv = 0x2,
.gpll_mdiv = 0x215,
.gpll_pdiv = 0xc,
.gpll_sdiv = 0x1,
.epll_mdiv = 0x60,
.epll_pdiv = 0x3,
.epll_sdiv = 0x3,
.vpll_mdiv = 0x96,
.vpll_pdiv = 0x3,
.vpll_sdiv = 0x2,
.bpll_mdiv = 0x64,
.bpll_pdiv = 0x3,
.bpll_sdiv = 0x0,
.use_bpll = 0,
.pclk_cdrex_ratio = 0x5,
.direct_cmd_msr = {
0x00020018, 0x00030000, 0x00010042, 0x00000d70
},
.timing_ref = 0x000000bb,
.timing_row = 0x8c36660f,
.timing_data = 0x3630580b,
.timing_power = 0x41000a44,
.phy0_dqs = 0x08080808,
.phy1_dqs = 0x08080808,
.phy0_dq = 0x08080808,
.phy1_dq = 0x08080808,
.phy0_tFS = 0x4,
.phy1_tFS = 0x4,
.phy0_pulld_dqs = 0xf,
.phy1_pulld_dqs = 0xf,
.lpddr3_ctrl_phy_reset = 0x1,
.ctrl_start_point = 0x10,
.ctrl_inc = 0x10,
.ctrl_start = 0x1,
.ctrl_dll_on = 0x1,
.ctrl_ref = 0x8,
.ctrl_force = 0x1a,
.ctrl_rdlat = 0x0b,
.ctrl_bstlen = 0x08,
.fp_resync = 0x8,
.iv_size = 0x7,
.dfi_init_start = 1,
.aref_en = 1,
.rd_fetch = 0x3,
.zq_mode_dds = 0x7,
.zq_mode_term = 0x1,
.zq_mode_noterm = 0,
/*
* Dynamic Clock: Always Running
* Memory Burst length: 8
* Number of chips: 1
* Memory Bus width: 32 bit
* Memory Type: DDR3
* Additional Latancy for PLL: 0 Cycle
*/
.memcontrol = DMC_MEMCONTROL_CLK_STOP_DISABLE |
DMC_MEMCONTROL_DPWRDN_DISABLE |
DMC_MEMCONTROL_DPWRDN_ACTIVE_PRECHARGE |
DMC_MEMCONTROL_TP_DISABLE |
DMC_MEMCONTROL_DSREF_ENABLE |
DMC_MEMCONTROL_ADD_LAT_PALL_CYCLE(0) |
DMC_MEMCONTROL_MEM_TYPE_DDR3 |
DMC_MEMCONTROL_MEM_WIDTH_32BIT |
DMC_MEMCONTROL_NUM_CHIP_1 |
DMC_MEMCONTROL_BL_8 |
DMC_MEMCONTROL_PZQ_DISABLE |
DMC_MEMCONTROL_MRR_BYTE_7_0,
.memconfig = DMC_MEMCONFIGx_CHIP_MAP_INTERLEAVED |
DMC_MEMCONFIGx_CHIP_COL_10 |
DMC_MEMCONFIGx_CHIP_ROW_15 |
DMC_MEMCONFIGx_CHIP_BANK_8,
.membaseconfig0 = DMC_MEMBASECONFIG_VAL(0x40),
.membaseconfig1 = DMC_MEMBASECONFIG_VAL(0x80),
.prechconfig_tp_cnt = 0xff,
.dpwrdn_cyc = 0xff,
.dsref_cyc = 0xffff,
.concontrol = DMC_CONCONTROL_DFI_INIT_START_DISABLE |
DMC_CONCONTROL_TIMEOUT_LEVEL0 |
DMC_CONCONTROL_RD_FETCH_DISABLE |
DMC_CONCONTROL_EMPTY_DISABLE |
DMC_CONCONTROL_AREF_EN_DISABLE |
DMC_CONCONTROL_IO_PD_CON_DISABLE,
.dmc_channels = 2,
.chips_per_channel = 2,
.chips_to_configure = 1,
.send_zq_init = 1,
.impedance = IMP_OUTPUT_DRV_30_OHM,
.gate_leveling_enable = 0,
}, {
.mem_manuf = MEM_MANUF_SAMSUNG,
.mem_type = DDR_MODE_DDR3,
.frequency_mhz = 800,
.mpll_mdiv = 0x64,
.mpll_pdiv = 0x3,
.mpll_sdiv = 0x0,
.cpll_mdiv = 0xde,
.cpll_pdiv = 0x4,
.cpll_sdiv = 0x2,
.gpll_mdiv = 0x215,
.gpll_pdiv = 0xc,
.gpll_sdiv = 0x1,
.epll_mdiv = 0x60,
.epll_pdiv = 0x3,
.epll_sdiv = 0x3,
.vpll_mdiv = 0x96,
.vpll_pdiv = 0x3,
.vpll_sdiv = 0x2,
.bpll_mdiv = 0x64,
.bpll_pdiv = 0x3,
.bpll_sdiv = 0x0,
.use_bpll = 0,
.pclk_cdrex_ratio = 0x5,
.direct_cmd_msr = {
0x00020018, 0x00030000, 0x00010000, 0x00000d70
},
.timing_ref = 0x000000bb,
.timing_row = 0x8c36660f,
.timing_data = 0x3630580b,
.timing_power = 0x41000a44,
.phy0_dqs = 0x08080808,
.phy1_dqs = 0x08080808,
.phy0_dq = 0x08080808,
.phy1_dq = 0x08080808,
.phy0_tFS = 0x8,
.phy1_tFS = 0x8,
.phy0_pulld_dqs = 0xf,
.phy1_pulld_dqs = 0xf,
.lpddr3_ctrl_phy_reset = 0x1,
.ctrl_start_point = 0x10,
.ctrl_inc = 0x10,
.ctrl_start = 0x1,
.ctrl_dll_on = 0x1,
.ctrl_ref = 0x8,
.ctrl_force = 0x1a,
.ctrl_rdlat = 0x0b,
.ctrl_bstlen = 0x08,
.fp_resync = 0x8,
.iv_size = 0x7,
.dfi_init_start = 1,
.aref_en = 1,
.rd_fetch = 0x3,
.zq_mode_dds = 0x5,
.zq_mode_term = 0x1,
.zq_mode_noterm = 1,
/*
* Dynamic Clock: Always Running
* Memory Burst length: 8
* Number of chips: 1
* Memory Bus width: 32 bit
* Memory Type: DDR3
* Additional Latancy for PLL: 0 Cycle
*/
.memcontrol = DMC_MEMCONTROL_CLK_STOP_DISABLE |
DMC_MEMCONTROL_DPWRDN_DISABLE |
DMC_MEMCONTROL_DPWRDN_ACTIVE_PRECHARGE |
DMC_MEMCONTROL_TP_DISABLE |
DMC_MEMCONTROL_DSREF_ENABLE |
DMC_MEMCONTROL_ADD_LAT_PALL_CYCLE(0) |
DMC_MEMCONTROL_MEM_TYPE_DDR3 |
DMC_MEMCONTROL_MEM_WIDTH_32BIT |
DMC_MEMCONTROL_NUM_CHIP_1 |
DMC_MEMCONTROL_BL_8 |
DMC_MEMCONTROL_PZQ_DISABLE |
DMC_MEMCONTROL_MRR_BYTE_7_0,
.memconfig = DMC_MEMCONFIGx_CHIP_MAP_INTERLEAVED |
DMC_MEMCONFIGx_CHIP_COL_10 |
DMC_MEMCONFIGx_CHIP_ROW_15 |
DMC_MEMCONFIGx_CHIP_BANK_8,
.membaseconfig0 = DMC_MEMBASECONFIG_VAL(0x40),
.membaseconfig1 = DMC_MEMBASECONFIG_VAL(0x80),
.prechconfig_tp_cnt = 0xff,
.dpwrdn_cyc = 0xff,
.dsref_cyc = 0xffff,
.concontrol = DMC_CONCONTROL_DFI_INIT_START_DISABLE |
DMC_CONCONTROL_TIMEOUT_LEVEL0 |
DMC_CONCONTROL_RD_FETCH_DISABLE |
DMC_CONCONTROL_EMPTY_DISABLE |
DMC_CONCONTROL_AREF_EN_DISABLE |
DMC_CONCONTROL_IO_PD_CON_DISABLE,
.dmc_channels = 2,
.chips_per_channel = 2,
.chips_to_configure = 1,
.send_zq_init = 1,
.impedance = IMP_OUTPUT_DRV_40_OHM,
.gate_leveling_enable = 1,
},
{
.mem_manuf = MEM_MANUF_ELPIDA,
.mem_type = DDR_MODE_DDR3,
.frequency_mhz = 780,
.mpll_mdiv = 0x64,
.mpll_pdiv = 0x3,
.mpll_sdiv = 0x0,
.cpll_mdiv = 0xde,
.cpll_pdiv = 0x4,
.cpll_sdiv = 0x2,
.gpll_mdiv = 0x215,
.gpll_pdiv = 0xc,
.gpll_sdiv = 0x1,
.epll_mdiv = 0x60,
.epll_pdiv = 0x3,
.epll_sdiv = 0x3,
.vpll_mdiv = 0x96,
.vpll_pdiv = 0x3,
.vpll_sdiv = 0x2,
.bpll_mdiv = 0x82,
.bpll_pdiv = 0x4,
.bpll_sdiv = 0x0,
.use_bpll = 1,
.pclk_cdrex_ratio = 0x5,
.direct_cmd_msr = {
0x00020018, 0x00030000, 0x00010042, 0x00000d70
},
.timing_ref = 0x000000bb,
.timing_row = 0x8c36660f,
.timing_data = 0x3630580b,
.timing_power = 0x41000a44,
.phy0_dqs = 0x08080808,
.phy1_dqs = 0x08080808,
.phy0_dq = 0x08080808,
.phy1_dq = 0x08080808,
.phy0_tFS = 0x4,
.phy1_tFS = 0x4,
.phy0_pulld_dqs = 0xf,
.phy1_pulld_dqs = 0xf,
.lpddr3_ctrl_phy_reset = 0x1,
.ctrl_start_point = 0x10,
.ctrl_inc = 0x10,
.ctrl_start = 0x1,
.ctrl_dll_on = 0x1,
.ctrl_ref = 0x8,
.ctrl_force = 0x1a,
.ctrl_rdlat = 0x0b,
.ctrl_bstlen = 0x08,
.fp_resync = 0x8,
.iv_size = 0x7,
.dfi_init_start = 1,
.aref_en = 1,
.rd_fetch = 0x3,
.zq_mode_dds = 0x7,
.zq_mode_term = 0x1,
.zq_mode_noterm = 0,
/*
* Dynamic Clock: Always Running
* Memory Burst length: 8
* Number of chips: 1
* Memory Bus width: 32 bit
* Memory Type: DDR3
* Additional Latancy for PLL: 0 Cycle
*/
.memcontrol = DMC_MEMCONTROL_CLK_STOP_DISABLE |
DMC_MEMCONTROL_DPWRDN_DISABLE |
DMC_MEMCONTROL_DPWRDN_ACTIVE_PRECHARGE |
DMC_MEMCONTROL_TP_DISABLE |
DMC_MEMCONTROL_DSREF_ENABLE |
DMC_MEMCONTROL_ADD_LAT_PALL_CYCLE(0) |
DMC_MEMCONTROL_MEM_TYPE_DDR3 |
DMC_MEMCONTROL_MEM_WIDTH_32BIT |
DMC_MEMCONTROL_NUM_CHIP_1 |
DMC_MEMCONTROL_BL_8 |
DMC_MEMCONTROL_PZQ_DISABLE |
DMC_MEMCONTROL_MRR_BYTE_7_0,
.memconfig = DMC_MEMCONFIGx_CHIP_MAP_INTERLEAVED |
DMC_MEMCONFIGx_CHIP_COL_10 |
DMC_MEMCONFIGx_CHIP_ROW_15 |
DMC_MEMCONFIGx_CHIP_BANK_8,
.membaseconfig0 = DMC_MEMBASECONFIG_VAL(0x40),
.membaseconfig1 = DMC_MEMBASECONFIG_VAL(0x80),
.prechconfig_tp_cnt = 0xff,
.dpwrdn_cyc = 0xff,
.dsref_cyc = 0xffff,
.concontrol = DMC_CONCONTROL_DFI_INIT_START_DISABLE |
DMC_CONCONTROL_TIMEOUT_LEVEL0 |
DMC_CONCONTROL_RD_FETCH_DISABLE |
DMC_CONCONTROL_EMPTY_DISABLE |
DMC_CONCONTROL_AREF_EN_DISABLE |
DMC_CONCONTROL_IO_PD_CON_DISABLE,
.dmc_channels = 2,
.chips_per_channel = 2,
.chips_to_configure = 1,
.send_zq_init = 1,
.impedance = IMP_OUTPUT_DRV_30_OHM,
.gate_leveling_enable = 0,
}, {
.mem_manuf = MEM_MANUF_SAMSUNG,
.mem_type = DDR_MODE_DDR3,
.frequency_mhz = 780,
.mpll_mdiv = 0x64,
.mpll_pdiv = 0x3,
.mpll_sdiv = 0x0,
.cpll_mdiv = 0xde,
.cpll_pdiv = 0x4,
.cpll_sdiv = 0x2,
.gpll_mdiv = 0x215,
.gpll_pdiv = 0xc,
.gpll_sdiv = 0x1,
.epll_mdiv = 0x60,
.epll_pdiv = 0x3,
.epll_sdiv = 0x3,
.vpll_mdiv = 0x96,
.vpll_pdiv = 0x3,
.vpll_sdiv = 0x2,
.bpll_mdiv = 0x82,
.bpll_pdiv = 0x4,
.bpll_sdiv = 0x0,
.use_bpll = 1,
.pclk_cdrex_ratio = 0x5,
.direct_cmd_msr = {
0x00020018, 0x00030000, 0x00010000, 0x00000d70
},
.timing_ref = 0x000000bb,
.timing_row = 0x8c36660f,
.timing_data = 0x3630580b,
.timing_power = 0x41000a44,
.phy0_dqs = 0x08080808,
.phy1_dqs = 0x08080808,
.phy0_dq = 0x08080808,
.phy1_dq = 0x08080808,
.phy0_tFS = 0x8,
.phy1_tFS = 0x8,
.phy0_pulld_dqs = 0xf,
.phy1_pulld_dqs = 0xf,
.lpddr3_ctrl_phy_reset = 0x1,
.ctrl_start_point = 0x10,
.ctrl_inc = 0x10,
.ctrl_start = 0x1,
.ctrl_dll_on = 0x1,
.ctrl_ref = 0x8,
.ctrl_force = 0x1a,
.ctrl_rdlat = 0x0b,
.ctrl_bstlen = 0x08,
.fp_resync = 0x8,
.iv_size = 0x7,
.dfi_init_start = 1,
.aref_en = 1,
.rd_fetch = 0x3,
.zq_mode_dds = 0x5,
.zq_mode_term = 0x1,
.zq_mode_noterm = 1,
/*
* Dynamic Clock: Always Running
* Memory Burst length: 8
* Number of chips: 1
* Memory Bus width: 32 bit
* Memory Type: DDR3
* Additional Latancy for PLL: 0 Cycle
*/
.memcontrol = DMC_MEMCONTROL_CLK_STOP_DISABLE |
DMC_MEMCONTROL_DPWRDN_DISABLE |
DMC_MEMCONTROL_DPWRDN_ACTIVE_PRECHARGE |
DMC_MEMCONTROL_TP_DISABLE |
DMC_MEMCONTROL_DSREF_ENABLE |
DMC_MEMCONTROL_ADD_LAT_PALL_CYCLE(0) |
DMC_MEMCONTROL_MEM_TYPE_DDR3 |
DMC_MEMCONTROL_MEM_WIDTH_32BIT |
DMC_MEMCONTROL_NUM_CHIP_1 |
DMC_MEMCONTROL_BL_8 |
DMC_MEMCONTROL_PZQ_DISABLE |
DMC_MEMCONTROL_MRR_BYTE_7_0,
.memconfig = DMC_MEMCONFIGx_CHIP_MAP_INTERLEAVED |
DMC_MEMCONFIGx_CHIP_COL_10 |
DMC_MEMCONFIGx_CHIP_ROW_15 |
DMC_MEMCONFIGx_CHIP_BANK_8,
.membaseconfig0 = DMC_MEMBASECONFIG_VAL(0x40),
.membaseconfig1 = DMC_MEMBASECONFIG_VAL(0x80),
.prechconfig_tp_cnt = 0xff,
.dpwrdn_cyc = 0xff,
.dsref_cyc = 0xffff,
.concontrol = DMC_CONCONTROL_DFI_INIT_START_DISABLE |
DMC_CONCONTROL_TIMEOUT_LEVEL0 |
DMC_CONCONTROL_RD_FETCH_DISABLE |
DMC_CONCONTROL_EMPTY_DISABLE |
DMC_CONCONTROL_AREF_EN_DISABLE |
DMC_CONCONTROL_IO_PD_CON_DISABLE,
.dmc_channels = 2,
.chips_per_channel = 2,
.chips_to_configure = 1,
.send_zq_init = 1,
.impedance = IMP_OUTPUT_DRV_40_OHM,
.gate_leveling_enable = 1,
}
};
struct mem_timings *get_mem_timings(void)
{
int i;
enum snow_board_config board_config;
enum ddr_mode mem_type;
unsigned int frequency_mhz;
enum mem_manuf mem_manuf;
struct mem_timings *mem;
board_config = board_get_config();
switch (board_config) {
case SNOW_CONFIG_ELPIDA_EVT:
case SNOW_CONFIG_ELPIDA_DVT:
case SNOW_CONFIG_ELPIDA_PVT:
case SNOW_CONFIG_ELPIDA_MP:
mem_manuf = MEM_MANUF_ELPIDA;
mem_type = DDR_MODE_DDR3;
frequency_mhz = 800;
break;
case SNOW_CONFIG_SAMSUNG_EVT:
case SNOW_CONFIG_SAMSUNG_DVT:
case SNOW_CONFIG_SAMSUNG_PVT:
case SNOW_CONFIG_SAMSUNG_MP:
mem_manuf = MEM_MANUF_SAMSUNG;
mem_type = DDR_MODE_DDR3;
frequency_mhz = 800;
break;
default:
printk(BIOS_CRIT, "Unable to determine board config\n");
return NULL;
}
for (i = 0, mem = mem_timings; i < ARRAY_SIZE(mem_timings);
i++, mem++) {
if (mem->mem_type == mem_type &&
mem->frequency_mhz == frequency_mhz &&
mem->mem_manuf == mem_manuf)
return mem;
}
return NULL;
}

31
src/mainboard/google/snow/romstage.c
View file

@ -24,13 +24,14 @@
#include <cbfs.h>
#include <common.h>
#include <cpu/samsung/exynos5250/setup.h>
#include <cpu/samsung/exynos5250/dmc.h>
#include <cpu/samsung/exynos5250/clock_init.h>
#include <cpu/samsung/exynos5250/setup.h>
#include <console/console.h>
#include <arch/bootblock_exit.h>
#include <arch/stages.h>
#include "mainboard.h"
void main(void)
{
struct cbfs_media cbfs;
@ -43,28 +44,31 @@ void main(void)
struct mem_timings *mem;
int ret;
mem = clock_get_mem_timings();
printk(BIOS_SPEW, "clock_get_mem_timings returns 0x%p\n", mem);
mem = get_mem_timings();
if (!mem) {
printk(BIOS_CRIT, "Unable to auto-detect memory timings\n");
while(1);
}
printk(BIOS_SPEW, "man: 0x%x type: 0x%x, div: 0x%x, mhz: 0x%x\n",
mem->mem_manuf,
mem->mem_type,
mem->mpll_mdiv,
mem->frequency_mhz);
ret = ddr3_mem_ctrl_init(mem, DMC_INTERLEAVE_SIZE);
if (ret) {
printk(BIOS_ERR, "Memory controller init failed, err: %x\n",
ret);
while(1);
}
ret = ddr3_mem_ctrl_init(mem, DMC_INTERLEAVE_SIZE);
if (ret) {
printk(BIOS_ERR, "Memory controller init failed, err: %x\n",
ret);
while(1);
}
printk(BIOS_INFO, "ddr3_init done\n");
printk(BIOS_INFO, "ddr3_init done\n");
/* wow, did it work? */
int i;
u32 *c = (void *)CONFIG_RAMBASE;
// mmu_setup(CONFIG_SYS_SDRAM_BASE, CONFIG_DRAM_SIZE_MB * 1024);
// printk(BIOS_INFO, "mmu_setup done\n");
// printk(BIOS_INFO, "mmu_setup done\n");
for(i = 0; i < 16384; i++)
c[i] = i+32768;
for(i = 0; i < 16384; i++)
@ -72,6 +76,7 @@ void main(void)
printk(BIOS_SPEW, "BADc[%02x]: %02x,", i, c[i]);
for(i = 0; i < 1048576; i++)
c[i] = 0;
ret = init_default_cbfs_media(&cbfs);
if (ret){
printk(BIOS_ERR, "init_default_cbfs_media returned %d: HALT\n",