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u-boot/board/phytec/pcm052/pcm052.c
Lukasz Majewski 1ff6c1f75b imx: bk4: Print proper HW revision of VF610's BK4 board 
This code uses HW difference on the USB_RESET pin (added PULL UP resistor
on the L333 rev) to distinguish between two BK4 HW revisions.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
2019-10-08 16:35:59 +02:00

425 lines
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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2018
* Lukasz Majewski, DENX Software Engineering, lukma@denx.de.
*
* Copyright 2013 Freescale Semiconductor, Inc.
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/iomux-vf610.h>
#include <asm/arch/ddrmc-vf610.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/clock.h>
#include <env.h>
#include <led.h>
#include <miiphy.h>
DECLARE_GLOBAL_DATA_PTR;
static struct ddrmc_cr_setting pcm052_cr_settings[] = {
/* not in the datasheets, but in the original code */
{ 0x00002000, 105 },
{ 0x00000020, 110 },
/* AXI */
{ DDRMC_CR117_AXI0_W_PRI(1) | DDRMC_CR117_AXI0_R_PRI(1), 117 },
{ DDRMC_CR118_AXI1_W_PRI(1) | DDRMC_CR118_AXI1_R_PRI(1), 118 },
{ DDRMC_CR120_AXI0_PRI1_RPRI(2) |
DDRMC_CR120_AXI0_PRI0_RPRI(2), 120 },
{ DDRMC_CR121_AXI0_PRI3_RPRI(2) |
DDRMC_CR121_AXI0_PRI2_RPRI(2), 121 },
{ DDRMC_CR122_AXI1_PRI1_RPRI(1) | DDRMC_CR122_AXI1_PRI0_RPRI(1) |
DDRMC_CR122_AXI0_PRIRLX(100), 122 },
{ DDRMC_CR123_AXI1_P_ODR_EN | DDRMC_CR123_AXI1_PRI3_RPRI(1) |
DDRMC_CR123_AXI1_PRI2_RPRI(1), 123 },
{ DDRMC_CR124_AXI1_PRIRLX(100), 124 },
{ DDRMC_CR126_PHY_RDLAT(11), 126 },
{ DDRMC_CR132_WRLAT_ADJ(5) | DDRMC_CR132_RDLAT_ADJ(6), 132 },
{ DDRMC_CR137_PHYCTL_DL(2), 137 },
{ DDRMC_CR139_PHY_WRLV_RESPLAT(4) | DDRMC_CR139_PHY_WRLV_LOAD(7) |
DDRMC_CR139_PHY_WRLV_DLL(3) |
DDRMC_CR139_PHY_WRLV_EN(3), 139 },
{ DDRMC_CR154_PAD_ZQ_EARLY_CMP_EN_TIMER(13) |
DDRMC_CR154_PAD_ZQ_MODE(1) |
DDRMC_CR154_DDR_SEL_PAD_CONTR(3) |
DDRMC_CR154_PAD_ZQ_HW_FOR(0), 154 },
{ DDRMC_CR155_PAD_ODT_BYTE1(5) | DDRMC_CR155_PAD_ODT_BYTE0(5), 155 },
{ DDRMC_CR158_TWR(6), 158 },
{ DDRMC_CR161_ODT_EN(0) | DDRMC_CR161_TODTH_RD(0) |
DDRMC_CR161_TODTH_WR(6), 161 },
/* end marker */
{ 0, -1 }
};
/* PHY settings -- most of them differ from default in imx-regs.h */
#define PCM052_DDRMC_PHY_DQ_TIMING 0x00002213
#define PCM052_DDRMC_PHY_CTRL 0x00290000
#define PCM052_DDRMC_PHY_SLAVE_CTRL 0x00002c00
#define PCM052_DDRMC_PHY_PROC_PAD_ODT 0x00010020
static struct ddrmc_phy_setting pcm052_phy_settings[] = {
{ PCM052_DDRMC_PHY_DQ_TIMING, 0 },
{ PCM052_DDRMC_PHY_DQ_TIMING, 16 },
{ PCM052_DDRMC_PHY_DQ_TIMING, 32 },
{ PCM052_DDRMC_PHY_DQ_TIMING, 48 },
{ DDRMC_PHY_DQS_TIMING, 1 },
{ DDRMC_PHY_DQS_TIMING, 17 },
{ DDRMC_PHY_DQS_TIMING, 33 },
{ DDRMC_PHY_DQS_TIMING, 49 },
{ PCM052_DDRMC_PHY_CTRL, 2 },
{ PCM052_DDRMC_PHY_CTRL, 18 },
{ PCM052_DDRMC_PHY_CTRL, 34 },
{ DDRMC_PHY_MASTER_CTRL, 3 },
{ DDRMC_PHY_MASTER_CTRL, 19 },
{ DDRMC_PHY_MASTER_CTRL, 35 },
{ PCM052_DDRMC_PHY_SLAVE_CTRL, 4 },
{ PCM052_DDRMC_PHY_SLAVE_CTRL, 20 },
{ PCM052_DDRMC_PHY_SLAVE_CTRL, 36 },
{ DDRMC_PHY50_DDR3_MODE | DDRMC_PHY50_EN_SW_HALF_CYCLE, 50 },
{ PCM052_DDRMC_PHY_PROC_PAD_ODT, 52 },
/* end marker */
{ 0, -1 }
};
int dram_init(void)
{
#if defined(CONFIG_TARGET_PCM052)
static const struct ddr3_jedec_timings pcm052_ddr_timings = {
.tinit = 5,
.trst_pwron = 80000,
.cke_inactive = 200000,
.wrlat = 5,
.caslat_lin = 12,
.trc = 6,
.trrd = 4,
.tccd = 4,
.tbst_int_interval = 4,
.tfaw = 18,
.trp = 6,
.twtr = 4,
.tras_min = 15,
.tmrd = 4,
.trtp = 4,
.tras_max = 14040,
.tmod = 12,
.tckesr = 4,
.tcke = 3,
.trcd_int = 6,
.tras_lockout = 1,
.tdal = 10,
.bstlen = 3,
.tdll = 512,
.trp_ab = 6,
.tref = 1542,
.trfc = 64,
.tref_int = 5,
.tpdex = 3,
.txpdll = 10,
.txsnr = 68,
.txsr = 506,
.cksrx = 5,
.cksre = 5,
.freq_chg_en = 1,
.zqcl = 256,
.zqinit = 512,
.zqcs = 64,
.ref_per_zq = 64,
.zqcs_rotate = 1,
.aprebit = 10,
.cmd_age_cnt = 255,
.age_cnt = 255,
.q_fullness = 0,
.odt_rd_mapcs0 = 1,
.odt_wr_mapcs0 = 1,
.wlmrd = 40,
.wldqsen = 25,
};
const int row_diff = 2;
#elif defined(CONFIG_TARGET_BK4R1)
static const struct ddr3_jedec_timings pcm052_ddr_timings = {
.tinit = 5,
.trst_pwron = 80000,
.cke_inactive = 200000,
.wrlat = 5,
.caslat_lin = 12,
.trc = 6,
.trrd = 4,
.tccd = 4,
.tbst_int_interval = 0,
.tfaw = 16,
.trp = 6,
.twtr = 4,
.tras_min = 15,
.tmrd = 4,
.trtp = 4,
.tras_max = 28080,
.tmod = 12,
.tckesr = 4,
.tcke = 3,
.trcd_int = 6,
.tras_lockout = 1,
.tdal = 12,
.bstlen = 3,
.tdll = 512,
.trp_ab = 6,
.tref = 3120,
.trfc = 104,
.tref_int = 0,
.tpdex = 3,
.txpdll = 10,
.txsnr = 108,
.txsr = 512,
.cksrx = 5,
.cksre = 5,
.freq_chg_en = 1,
.zqcl = 256,
.zqinit = 512,
.zqcs = 64,
.ref_per_zq = 64,
.zqcs_rotate = 1,
.aprebit = 10,
.cmd_age_cnt = 255,
.age_cnt = 255,
.q_fullness = 0,
.odt_rd_mapcs0 = 1,
.odt_wr_mapcs0 = 1,
.wlmrd = 40,
.wldqsen = 25,
};
const int row_diff = 1;
#else /* Unknown PCM052 variant */
#error DDR characteristics undefined for this target. Please define them.
#endif
ddrmc_ctrl_init_ddr3(&pcm052_ddr_timings, pcm052_cr_settings,
pcm052_phy_settings, 1, row_diff);
gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
return 0;
}
static void clock_init(void)
{
struct ccm_reg *ccm = (struct ccm_reg *)CCM_BASE_ADDR;
struct anadig_reg *anadig = (struct anadig_reg *)ANADIG_BASE_ADDR;
clrsetbits_le32(&ccm->ccgr0, CCM_REG_CTRL_MASK,
CCM_CCGR0_UART1_CTRL_MASK);
clrsetbits_le32(&ccm->ccgr1, CCM_REG_CTRL_MASK,
CCM_CCGR1_PIT_CTRL_MASK | CCM_CCGR1_WDOGA5_CTRL_MASK);
clrsetbits_le32(&ccm->ccgr2, CCM_REG_CTRL_MASK,
CCM_CCGR2_IOMUXC_CTRL_MASK | CCM_CCGR2_PORTA_CTRL_MASK |
CCM_CCGR2_PORTB_CTRL_MASK | CCM_CCGR2_PORTC_CTRL_MASK |
CCM_CCGR2_PORTD_CTRL_MASK | CCM_CCGR2_PORTE_CTRL_MASK |
CCM_CCGR2_QSPI0_CTRL_MASK);
clrsetbits_le32(&ccm->ccgr3, CCM_REG_CTRL_MASK,
CCM_CCGR3_ANADIG_CTRL_MASK | CCM_CCGR3_SCSC_CTRL_MASK);
clrsetbits_le32(&ccm->ccgr4, CCM_REG_CTRL_MASK,
CCM_CCGR4_WKUP_CTRL_MASK | CCM_CCGR4_CCM_CTRL_MASK |
CCM_CCGR4_GPC_CTRL_MASK);
clrsetbits_le32(&ccm->ccgr6, CCM_REG_CTRL_MASK,
CCM_CCGR6_OCOTP_CTRL_MASK | CCM_CCGR6_DDRMC_CTRL_MASK);
clrsetbits_le32(&ccm->ccgr7, CCM_REG_CTRL_MASK,
CCM_CCGR7_SDHC1_CTRL_MASK);
clrsetbits_le32(&ccm->ccgr9, CCM_REG_CTRL_MASK,
CCM_CCGR9_FEC0_CTRL_MASK | CCM_CCGR9_FEC1_CTRL_MASK);
clrsetbits_le32(&ccm->ccgr10, CCM_REG_CTRL_MASK,
CCM_CCGR10_NFC_CTRL_MASK);
clrsetbits_le32(&anadig->pll2_ctrl, ANADIG_PLL2_CTRL_POWERDOWN,
ANADIG_PLL2_CTRL_ENABLE | ANADIG_PLL2_CTRL_DIV_SELECT);
clrsetbits_le32(&anadig->pll1_ctrl, ANADIG_PLL1_CTRL_POWERDOWN,
ANADIG_PLL1_CTRL_ENABLE | ANADIG_PLL1_CTRL_DIV_SELECT);
clrsetbits_le32(&ccm->ccr, CCM_CCR_OSCNT_MASK,
CCM_CCR_FIRC_EN | CCM_CCR_OSCNT(5));
clrsetbits_le32(&ccm->ccsr, CCM_REG_CTRL_MASK,
CCM_CCSR_PLL1_PFD_CLK_SEL(3) | CCM_CCSR_PLL2_PFD4_EN |
CCM_CCSR_PLL2_PFD3_EN | CCM_CCSR_PLL2_PFD2_EN |
CCM_CCSR_PLL2_PFD1_EN | CCM_CCSR_PLL1_PFD4_EN |
CCM_CCSR_PLL1_PFD3_EN | CCM_CCSR_PLL1_PFD2_EN |
CCM_CCSR_PLL1_PFD1_EN | CCM_CCSR_DDRC_CLK_SEL(1) |
CCM_CCSR_FAST_CLK_SEL(1) | CCM_CCSR_SYS_CLK_SEL(4));
clrsetbits_le32(&ccm->cacrr, CCM_REG_CTRL_MASK,
CCM_CACRR_IPG_CLK_DIV(1) | CCM_CACRR_BUS_CLK_DIV(2) |
CCM_CACRR_ARM_CLK_DIV(0));
clrsetbits_le32(&ccm->cscmr1, CCM_REG_CTRL_MASK,
CCM_CSCMR1_ESDHC1_CLK_SEL(3) |
CCM_CSCMR1_QSPI0_CLK_SEL(3) |
CCM_CSCMR1_NFC_CLK_SEL(0));
clrsetbits_le32(&ccm->cscdr1, CCM_REG_CTRL_MASK,
CCM_CSCDR1_RMII_CLK_EN);
clrsetbits_le32(&ccm->cscdr2, CCM_REG_CTRL_MASK,
CCM_CSCDR2_ESDHC1_EN | CCM_CSCDR2_ESDHC1_CLK_DIV(0) |
CCM_CSCDR2_NFC_EN);
clrsetbits_le32(&ccm->cscdr3, CCM_REG_CTRL_MASK,
CCM_CSCDR3_QSPI0_EN | CCM_CSCDR3_QSPI0_DIV(1) |
CCM_CSCDR3_QSPI0_X2_DIV(1) |
CCM_CSCDR3_QSPI0_X4_DIV(3) |
CCM_CSCDR3_NFC_PRE_DIV(5));
clrsetbits_le32(&ccm->cscmr2, CCM_REG_CTRL_MASK,
CCM_CSCMR2_RMII_CLK_SEL(0));
}
static void mscm_init(void)
{
struct mscm_ir *mscmir = (struct mscm_ir *)MSCM_IR_BASE_ADDR;
int i;
for (i = 0; i < MSCM_IRSPRC_NUM; i++)
writew(MSCM_IRSPRC_CP0_EN, &mscmir->irsprc[i]);
}
int board_early_init_f(void)
{
clock_init();
mscm_init();
return 0;
}
int board_init(void)
{
struct scsc_reg *scsc = (struct scsc_reg *)SCSC_BASE_ADDR;
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
/*
* Enable external 32K Oscillator
*
* The internal clock experiences significant drift
* so we must use the external oscillator in order
* to maintain correct time in the hwclock
*/
setbits_le32(&scsc->sosc_ctr, SCSC_SOSC_CTR_SOSC_EN);
return 0;
}
#ifdef CONFIG_TARGET_BK4R1
void imx_get_mac_from_fuse(int dev_id, unsigned char *mac)
{
struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
struct fuse_bank *bank = &ocotp->bank[4];
struct fuse_bank4_regs *fuse =
(struct fuse_bank4_regs *)bank->fuse_regs;
u32 value;
/*
* BK4 has different layout of stored MAC address
* than one used in imx_get_mac_from_fuse() @ generic.c
*/
switch (dev_id) {
case 0:
value = readl(&fuse->mac_addr1);
mac[0] = value >> 8;
mac[1] = value;
value = readl(&fuse->mac_addr0);
mac[2] = value >> 24;
mac[3] = value >> 16;
mac[4] = value >> 8;
mac[5] = value;
break;
case 1:
value = readl(&fuse->mac_addr2);
mac[0] = value >> 24;
mac[1] = value >> 16;
mac[2] = value >> 8;
mac[3] = value;
value = readl(&fuse->mac_addr1);
mac[4] = value >> 24;
mac[5] = value >> 16;
break;
}
}
int board_late_init(void)
{
struct src *psrc = (struct src *)SRC_BASE_ADDR;
u32 reg;
if (IS_ENABLED(CONFIG_LED))
led_default_state();
/*
* BK4r1 handle emergency/service SD card boot
* Checking the SBMR1 register BOOTCFG1 byte:
* NAND:
* bit [2] - NAND data width - 16
* bit [5] - NAND fast boot
* bit [7] = 1 - NAND as a source of booting
* SD card (0x64):
* bit [4] = 0 - SD card source
* bit [6] = 1 - SD/MMC source
*/
reg = readl(&psrc->sbmr1);
if ((reg & SRC_SBMR1_BOOTCFG1_SDMMC) &&
!(reg & SRC_SBMR1_BOOTCFG1_MMC)) {
printf("------ SD card boot -------\n");
env_set_default("!LVFBootloader", 0);
env_set("bootcmd",
"run prepare_install_bk4r1_envs; run install_bk4r1rs");
}
return 0;
}
/**
* KSZ8081
*/
#define MII_KSZ8081_REFERENCE_CLOCK_SELECT 0x1f
#define RMII_50MHz_CLOCK 0x8180
int board_phy_config(struct phy_device *phydev)
{
/* Set 50 MHz reference clock */
phy_write(phydev, MDIO_DEVAD_NONE, MII_KSZ8081_REFERENCE_CLOCK_SELECT,
RMII_50MHz_CLOCK);
return genphy_config(phydev);
}
#endif /* CONFIG_TARGET_BK4R1 */
int checkboard(void)
{
#ifdef CONFIG_TARGET_BK4R1
u32 *gpio3_pdir = (u32 *)(GPIO3_BASE_ADDR + 0x10);
/*
* USB_RESET_N (PTC30 - GPIO103 - PORT3[7]):
* L333 -> pull up added -> read 1
* L320 -> no pull up -> read 0
*
* Default iomuxc_ptc30 value after reset: 0x300061 -> RCON28
* - input enabled, pull (up/down) disabled
*/
if (*gpio3_pdir & BIT(7))
puts("Board: BK4r1 (L333)\n");
else
puts("Board: BK4r1 (L320)\n");
#else
puts("Board: PCM-052\n");
#endif
return 0;
}
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