+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2013 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
+#include <init.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 <mmc.h>
-#include <fsl_esdhc.h>
+#include <fsl_esdhc_imx.h>
#include <miiphy.h>
#include <netdev.h>
#include <i2c.h>
#define ENET_PAD_CTRL (PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_HIGH | \
PAD_CTL_DSE_50ohm | PAD_CTL_OBE_IBE_ENABLE)
-void setup_iomux_ddr(void)
-{
- static const iomux_v3_cfg_t ddr_pads[] = {
- VF610_PAD_DDR_A15__DDR_A_15,
- VF610_PAD_DDR_A14__DDR_A_14,
- VF610_PAD_DDR_A13__DDR_A_13,
- VF610_PAD_DDR_A12__DDR_A_12,
- VF610_PAD_DDR_A11__DDR_A_11,
- VF610_PAD_DDR_A10__DDR_A_10,
- VF610_PAD_DDR_A9__DDR_A_9,
- VF610_PAD_DDR_A8__DDR_A_8,
- VF610_PAD_DDR_A7__DDR_A_7,
- VF610_PAD_DDR_A6__DDR_A_6,
- VF610_PAD_DDR_A5__DDR_A_5,
- VF610_PAD_DDR_A4__DDR_A_4,
- VF610_PAD_DDR_A3__DDR_A_3,
- VF610_PAD_DDR_A2__DDR_A_2,
- VF610_PAD_DDR_A1__DDR_A_1,
- VF610_PAD_DDR_A0__DDR_A_0,
- VF610_PAD_DDR_BA2__DDR_BA_2,
- VF610_PAD_DDR_BA1__DDR_BA_1,
- VF610_PAD_DDR_BA0__DDR_BA_0,
- VF610_PAD_DDR_CAS__DDR_CAS_B,
- VF610_PAD_DDR_CKE__DDR_CKE_0,
- VF610_PAD_DDR_CLK__DDR_CLK_0,
- VF610_PAD_DDR_CS__DDR_CS_B_0,
- VF610_PAD_DDR_D15__DDR_D_15,
- VF610_PAD_DDR_D14__DDR_D_14,
- VF610_PAD_DDR_D13__DDR_D_13,
- VF610_PAD_DDR_D12__DDR_D_12,
- VF610_PAD_DDR_D11__DDR_D_11,
- VF610_PAD_DDR_D10__DDR_D_10,
- VF610_PAD_DDR_D9__DDR_D_9,
- VF610_PAD_DDR_D8__DDR_D_8,
- VF610_PAD_DDR_D7__DDR_D_7,
- VF610_PAD_DDR_D6__DDR_D_6,
- VF610_PAD_DDR_D5__DDR_D_5,
- VF610_PAD_DDR_D4__DDR_D_4,
- VF610_PAD_DDR_D3__DDR_D_3,
- VF610_PAD_DDR_D2__DDR_D_2,
- VF610_PAD_DDR_D1__DDR_D_1,
- VF610_PAD_DDR_D0__DDR_D_0,
- VF610_PAD_DDR_DQM1__DDR_DQM_1,
- VF610_PAD_DDR_DQM0__DDR_DQM_0,
- VF610_PAD_DDR_DQS1__DDR_DQS_1,
- VF610_PAD_DDR_DQS0__DDR_DQS_0,
- VF610_PAD_DDR_RAS__DDR_RAS_B,
- VF610_PAD_DDR_WE__DDR_WE_B,
- VF610_PAD_DDR_ODT1__DDR_ODT_0,
- VF610_PAD_DDR_ODT0__DDR_ODT_1,
- VF610_PAD_DDR_RESETB,
- };
-
- imx_iomux_v3_setup_multiple_pads(ddr_pads, ARRAY_SIZE(ddr_pads));
-}
-
-void ddr_phy_init(void)
-{
- struct ddrmr_regs *ddrmr = (struct ddrmr_regs *)DDR_BASE_ADDR;
-
- writel(DDRMC_PHY_DQ_TIMING, &ddrmr->phy[0]);
- writel(DDRMC_PHY_DQ_TIMING, &ddrmr->phy[16]);
- writel(DDRMC_PHY_DQ_TIMING, &ddrmr->phy[32]);
-
- writel(DDRMC_PHY_DQS_TIMING, &ddrmr->phy[1]);
- writel(DDRMC_PHY_DQS_TIMING, &ddrmr->phy[17]);
-
- writel(DDRMC_PHY_CTRL, &ddrmr->phy[2]);
- writel(DDRMC_PHY_CTRL, &ddrmr->phy[18]);
- writel(DDRMC_PHY_CTRL, &ddrmr->phy[34]);
-
- writel(DDRMC_PHY_MASTER_CTRL, &ddrmr->phy[3]);
- writel(DDRMC_PHY_MASTER_CTRL, &ddrmr->phy[19]);
- writel(DDRMC_PHY_MASTER_CTRL, &ddrmr->phy[35]);
-
- writel(DDRMC_PHY_SLAVE_CTRL, &ddrmr->phy[4]);
- writel(DDRMC_PHY_SLAVE_CTRL, &ddrmr->phy[20]);
- writel(DDRMC_PHY_SLAVE_CTRL, &ddrmr->phy[36]);
-
- /* LPDDR2 only parameter */
- writel(DDRMC_PHY_OFF, &ddrmr->phy[49]);
-
- writel(DDRMC_PHY50_DDR3_MODE | DDRMC_PHY50_EN_SW_HALF_CYCLE,
- &ddrmr->phy[50]);
-
- /* Processor Pad ODT settings */
- writel(DDRMC_PHY_PROC_PAD_ODT, &ddrmr->phy[52]);
-}
-
-void ddr_ctrl_init(void)
-{
- struct ddrmr_regs *ddrmr = (struct ddrmr_regs *)DDR_BASE_ADDR;
-
- writel(DDRMC_CR00_DRAM_CLASS_DDR3, &ddrmr->cr[0]);
- writel(DDRMC_CR02_DRAM_TINIT(32), &ddrmr->cr[2]);
- writel(DDRMC_CR10_TRST_PWRON(80000), &ddrmr->cr[10]);
-
- writel(DDRMC_CR11_CKE_INACTIVE(200000), &ddrmr->cr[11]);
- writel(DDRMC_CR12_WRLAT(5) | DDRMC_CR12_CASLAT_LIN(12), &ddrmr->cr[12]);
- writel(DDRMC_CR13_TRC(21) | DDRMC_CR13_TRRD(4) | DDRMC_CR13_TCCD(4),
- &ddrmr->cr[13]);
- writel(DDRMC_CR14_TFAW(20) | DDRMC_CR14_TRP(6) | DDRMC_CR14_TWTR(4) |
- DDRMC_CR14_TRAS_MIN(15), &ddrmr->cr[14]);
- writel(DDRMC_CR16_TMRD(4) | DDRMC_CR16_TRTP(4), &ddrmr->cr[16]);
- writel(DDRMC_CR17_TRAS_MAX(28080) | DDRMC_CR17_TMOD(12),
- &ddrmr->cr[17]);
- writel(DDRMC_CR18_TCKESR(4) | DDRMC_CR18_TCKE(3), &ddrmr->cr[18]);
-
- writel(DDRMC_CR20_AP_EN, &ddrmr->cr[20]);
- writel(DDRMC_CR21_TRCD_INT(6) | DDRMC_CR21_CCMAP_EN, &ddrmr->cr[21]);
-
- writel(DDRMC_CR22_TDAL(12), &ddrmr->cr[22]);
- writel(DDRMC_CR23_BSTLEN(3) | DDRMC_CR23_TDLL(512), &ddrmr->cr[23]);
- writel(DDRMC_CR24_TRP_AB(6), &ddrmr->cr[24]);
-
- writel(DDRMC_CR25_TREF_EN, &ddrmr->cr[25]);
- writel(DDRMC_CR26_TREF(3120) | DDRMC_CR26_TRFC(44), &ddrmr->cr[26]);
- writel(DDRMC_CR28_TREF_INT(0), &ddrmr->cr[28]);
- writel(DDRMC_CR29_TPDEX(3), &ddrmr->cr[29]);
-
- writel(DDRMC_CR30_TXPDLL(10), &ddrmr->cr[30]);
- writel(DDRMC_CR31_TXSNR(48) | DDRMC_CR31_TXSR(468), &ddrmr->cr[31]);
- writel(DDRMC_CR33_EN_QK_SREF, &ddrmr->cr[33]);
- writel(DDRMC_CR34_CKSRX(5) | DDRMC_CR34_CKSRE(5), &ddrmr->cr[34]);
-
- writel(DDRMC_CR38_FREQ_CHG_EN(0), &ddrmr->cr[38]);
- writel(DDRMC_CR39_PHY_INI_COM(1024) | DDRMC_CR39_PHY_INI_STA(16) |
- DDRMC_CR39_FRQ_CH_DLLOFF(2), &ddrmr->cr[39]);
-
- writel(DDRMC_CR41_PHY_INI_STRT_INI_DIS, &ddrmr->cr[41]);
- writel(DDRMC_CR48_MR1_DA_0(70) | DDRMC_CR48_MR0_DA_0(1056),
- &ddrmr->cr[48]);
-
- writel(DDRMC_CR66_ZQCL(256) | DDRMC_CR66_ZQINIT(512), &ddrmr->cr[66]);
- writel(DDRMC_CR67_ZQCS(64), &ddrmr->cr[67]);
- writel(DDRMC_CR69_ZQ_ON_SREF_EX(2), &ddrmr->cr[69]);
-
- writel(DDRMC_CR70_REF_PER_ZQ(64), &ddrmr->cr[70]);
- writel(DDRMC_CR72_ZQCS_ROTATE(0), &ddrmr->cr[72]);
-
- writel(DDRMC_CR73_APREBIT(10) | DDRMC_CR73_COL_DIFF(1) |
- DDRMC_CR73_ROW_DIFF(3), &ddrmr->cr[73]);
- writel(DDRMC_CR74_BANKSPLT_EN | DDRMC_CR74_ADDR_CMP_EN |
- DDRMC_CR74_CMD_AGE_CNT(64) | DDRMC_CR74_AGE_CNT(64),
- &ddrmr->cr[74]);
- writel(DDRMC_CR75_RW_PG_EN | DDRMC_CR75_RW_EN | DDRMC_CR75_PRI_EN |
- DDRMC_CR75_PLEN, &ddrmr->cr[75]);
- writel(DDRMC_CR76_NQENT_ACTDIS(3) | DDRMC_CR76_D_RW_G_BKCN(3) |
- DDRMC_CR76_W2R_SPLT_EN, &ddrmr->cr[76]);
- writel(DDRMC_CR77_CS_MAP | DDRMC_CR77_DI_RD_INTLEAVE |
- DDRMC_CR77_SWAP_EN, &ddrmr->cr[77]);
- writel(DDRMC_CR78_Q_FULLNESS(7) | DDRMC_CR78_BUR_ON_FLY_BIT(12),
- &ddrmr->cr[78]);
- writel(DDRMC_CR79_CTLUPD_AREF(0), &ddrmr->cr[79]);
-
- writel(DDRMC_CR82_INT_MASK, &ddrmr->cr[82]);
-
- writel(DDRMC_CR87_ODT_WR_MAPCS0, &ddrmr->cr[87]);
- writel(DDRMC_CR88_TODTL_CMD(4), &ddrmr->cr[88]);
- writel(DDRMC_CR89_AODT_RWSMCS(2), &ddrmr->cr[89]);
-
- writel(DDRMC_CR91_R2W_SMCSDL(2), &ddrmr->cr[91]);
- writel(DDRMC_CR96_WLMRD(40) | DDRMC_CR96_WLDQSEN(25), &ddrmr->cr[96]);
- writel(DDRMC_CR97_WRLVL_EN, &ddrmr->cr[97]);
- writel(DDRMC_CR98_WRLVL_DL_0, &ddrmr->cr[98]);
- writel(DDRMC_CR99_WRLVL_DL_1, &ddrmr->cr[99]);
-
- writel(DDRMC_CR102_RDLVL_GT_REGEN | DDRMC_CR102_RDLVL_REG_EN,
- &ddrmr->cr[102]);
-
- writel(DDRMC_CR105_RDLVL_DL_0(0), &ddrmr->cr[105]);
- writel(DDRMC_CR106_RDLVL_GTDL_0(4), &ddrmr->cr[106]);
- writel(DDRMC_CR110_RDLVL_GTDL_1(4), &ddrmr->cr[110]);
- writel(DDRMC_CR114_RDLVL_GTDL_2(0), &ddrmr->cr[114]);
- writel(DDRMC_CR115_RDLVL_GTDL_2(0), &ddrmr->cr[115]);
-
- writel(DDRMC_CR117_AXI0_W_PRI(0) | DDRMC_CR117_AXI0_R_PRI(0),
- &ddrmr->cr[117]);
- writel(DDRMC_CR118_AXI1_W_PRI(1) | DDRMC_CR118_AXI1_R_PRI(1),
- &ddrmr->cr[118]);
-
- writel(DDRMC_CR120_AXI0_PRI1_RPRI(2) | DDRMC_CR120_AXI0_PRI0_RPRI(2),
- &ddrmr->cr[120]);
- writel(DDRMC_CR121_AXI0_PRI3_RPRI(2) | DDRMC_CR121_AXI0_PRI2_RPRI(2),
- &ddrmr->cr[121]);
- writel(DDRMC_CR122_AXI1_PRI1_RPRI(1) | DDRMC_CR122_AXI1_PRI0_RPRI(1) |
- DDRMC_CR122_AXI0_PRIRLX(100), &ddrmr->cr[122]);
- writel(DDRMC_CR123_AXI1_P_ODR_EN | DDRMC_CR123_AXI1_PRI3_RPRI(1) |
- DDRMC_CR123_AXI1_PRI2_RPRI(1), &ddrmr->cr[123]);
- writel(DDRMC_CR124_AXI1_PRIRLX(100), &ddrmr->cr[124]);
-
- writel(DDRMC_CR126_PHY_RDLAT(8), &ddrmr->cr[126]);
- writel(DDRMC_CR132_WRLAT_ADJ(5) | DDRMC_CR132_RDLAT_ADJ(6),
- &ddrmr->cr[132]);
- writel(DDRMC_CR137_PHYCTL_DL(2), &ddrmr->cr[137]);
- writel(DDRMC_CR138_PHY_WRLV_MXDL(256) | DDRMC_CR138_PHYDRAM_CK_EN(1),
- &ddrmr->cr[138]);
- writel(DDRMC_CR139_PHY_WRLV_RESPLAT(4) | DDRMC_CR139_PHY_WRLV_LOAD(7) |
- DDRMC_CR139_PHY_WRLV_DLL(3) | DDRMC_CR139_PHY_WRLV_EN(3),
- &ddrmr->cr[139]);
- writel(DDRMC_CR140_PHY_WRLV_WW(64), &ddrmr->cr[140]);
- writel(DDRMC_CR143_RDLV_GAT_MXDL(1536) | DDRMC_CR143_RDLV_MXDL(128),
- &ddrmr->cr[143]);
- writel(DDRMC_CR144_PHY_RDLVL_RES(4) | DDRMC_CR144_PHY_RDLV_LOAD(7) |
- DDRMC_CR144_PHY_RDLV_DLL(3) | DDRMC_CR144_PHY_RDLV_EN(3),
- &ddrmr->cr[144]);
- writel(DDRMC_CR145_PHY_RDLV_RR(64), &ddrmr->cr[145]);
- writel(DDRMC_CR146_PHY_RDLVL_RESP(64), &ddrmr->cr[146]);
- writel(DDRMC_CR147_RDLV_RESP_MASK(983040), &ddrmr->cr[147]);
- writel(DDRMC_CR148_RDLV_GATE_RESP_MASK(983040), &ddrmr->cr[148]);
- writel(DDRMC_CR151_RDLV_GAT_DQ_ZERO_CNT(1) |
- DDRMC_CR151_RDLVL_DQ_ZERO_CNT(1), &ddrmr->cr[151]);
-
- writel(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(1), &ddrmr->cr[154]);
- writel(DDRMC_CR155_PAD_ODT_BYTE1(2) | DDRMC_CR155_PAD_ODT_BYTE0(2),
- &ddrmr->cr[155]);
- writel(DDRMC_CR158_TWR(6), &ddrmr->cr[158]);
- writel(DDRMC_CR161_ODT_EN(1) | DDRMC_CR161_TODTH_RD(2) |
- DDRMC_CR161_TODTH_WR(2), &ddrmr->cr[161]);
-
- ddr_phy_init();
-
- writel(DDRMC_CR00_DRAM_CLASS_DDR3 | DDRMC_CR00_START, &ddrmr->cr[0]);
-
- udelay(200);
-}
+static struct ddrmc_cr_setting vf610twr_cr_settings[] = {
+ /* levelling */
+ { DDRMC_CR97_WRLVL_EN, 97 },
+ { DDRMC_CR98_WRLVL_DL_0(0), 98 },
+ { DDRMC_CR99_WRLVL_DL_1(0), 99 },
+ { DDRMC_CR102_RDLVL_REG_EN | DDRMC_CR102_RDLVL_GT_REGEN, 102 },
+ { DDRMC_CR105_RDLVL_DL_0(0), 105 },
+ { DDRMC_CR106_RDLVL_GTDL_0(4), 106 },
+ { DDRMC_CR110_RDLVL_DL_1(0) | DDRMC_CR110_RDLVL_GTDL_1(4), 110 },
+ /* AXI */
+ { DDRMC_CR117_AXI0_W_PRI(0) | DDRMC_CR117_AXI0_R_PRI(0), 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(8), 126 },
+ { DDRMC_CR132_WRLAT_ADJ(5) |
+ DDRMC_CR132_RDLAT_ADJ(6), 132 },
+ { DDRMC_CR137_PHYCTL_DL(2), 137 },
+ { DDRMC_CR138_PHY_WRLV_MXDL(256) |
+ DDRMC_CR138_PHYDRAM_CK_EN(1), 138 },
+ { 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_CR140_PHY_WRLV_WW(64), 140 },
+ { DDRMC_CR143_RDLV_GAT_MXDL(1536) |
+ DDRMC_CR143_RDLV_MXDL(128), 143 },
+ { DDRMC_CR144_PHY_RDLVL_RES(4) | DDRMC_CR144_PHY_RDLV_LOAD(7) |
+ DDRMC_CR144_PHY_RDLV_DLL(3) |
+ DDRMC_CR144_PHY_RDLV_EN(3), 144 },
+ { DDRMC_CR145_PHY_RDLV_RR(64), 145 },
+ { DDRMC_CR146_PHY_RDLVL_RESP(64), 146 },
+ { DDRMC_CR147_RDLV_RESP_MASK(983040), 147 },
+ { DDRMC_CR148_RDLV_GATE_RESP_MASK(983040), 148 },
+ { DDRMC_CR151_RDLV_GAT_DQ_ZERO_CNT(1) |
+ DDRMC_CR151_RDLVL_DQ_ZERO_CNT(1), 151 },
+
+ { 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(1), 154 },
+ { DDRMC_CR155_PAD_ODT_BYTE1(1) | DDRMC_CR155_PAD_ODT_BYTE0(1), 155 },
+ { DDRMC_CR158_TWR(6), 158 },
+ { DDRMC_CR161_ODT_EN(1) | DDRMC_CR161_TODTH_RD(2) |
+ DDRMC_CR161_TODTH_WR(2), 161 },
+ /* end marker */
+ { 0, -1 }
+};
int dram_init(void)
{
- setup_iomux_ddr();
+ static const struct ddr3_jedec_timings timings = {
+ .tinit = 5,
+ .trst_pwron = 80000,
+ .cke_inactive = 200000,
+ .wrlat = 5,
+ .caslat_lin = 12,
+ .trc = 21,
+ .trrd = 4,
+ .tccd = 4,
+ .tbst_int_interval = 0,
+ .tfaw = 20,
+ .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 = 0,
+ .tdal = 12,
+ .bstlen = 3,
+ .tdll = 512,
+ .trp_ab = 6,
+ .tref = 3120,
+ .trfc = 44,
+ .tref_int = 0,
+ .tpdex = 3,
+ .txpdll = 10,
+ .txsnr = 48,
+ .txsr = 468,
+ .cksrx = 5,
+ .cksre = 5,
+ .freq_chg_en = 0,
+ .zqcl = 256,
+ .zqinit = 512,
+ .zqcs = 64,
+ .ref_per_zq = 64,
+ .zqcs_rotate = 0,
+ .aprebit = 10,
+ .cmd_age_cnt = 64,
+ .age_cnt = 64,
+ .q_fullness = 7,
+ .odt_rd_mapcs0 = 0,
+ .odt_wr_mapcs0 = 1,
+ .wlmrd = 40,
+ .wldqsen = 25,
+ };
+
+ ddrmc_setup_iomux(NULL, 0);
- ddr_ctrl_init();
+ ddrmc_ctrl_init_ddr3(&timings, vf610twr_cr_settings, NULL, 1, 3);
gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
return 0;
imx_iomux_v3_setup_multiple_pads(qspi0_pads, ARRAY_SIZE(qspi0_pads));
}
-#ifdef CONFIG_FSL_ESDHC
+#ifdef CONFIG_FSL_ESDHC_IMX
struct fsl_esdhc_cfg esdhc_cfg[1] = {
{ESDHC1_BASE_ADDR},
};
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_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 | CCM_CCGR4_I2C0_CTRL_MASK);
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;
}
projects / platform / kernel / u-boot.git / blobdiff