206 lines
5.1 KiB
C
206 lines
5.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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*/
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#include <common.h>
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#include <init.h>
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#include <asm/io.h>
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#include <asm/arch/at91_sfr.h>
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#include <asm/arch/sama5d3_smc.h>
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#include <asm/arch/at91_common.h>
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#include <asm/arch/at91_pmc.h>
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#include <asm/arch/at91_rstc.h>
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#include <asm/arch/gpio.h>
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#include <asm/arch/clk.h>
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#include <env.h>
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#include <micrel.h>
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#include <net.h>
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#include <netdev.h>
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#include <spl.h>
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#include <asm/arch/atmel_mpddrc.h>
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#include <asm/arch/at91_wdt.h>
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DECLARE_GLOBAL_DATA_PTR;
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/* ------------------------------------------------------------------------- */
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/*
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* Miscelaneous platform dependent initialisations
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*/
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void wb50n_nand_hw_init(void)
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{
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struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
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at91_periph_clk_enable(ATMEL_ID_SMC);
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/* Configure SMC CS3 for NAND/SmartMedia */
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writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(1) |
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AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(1),
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&smc->cs[3].setup);
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writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(5) |
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AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(5),
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&smc->cs[3].pulse);
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writel(AT91_SMC_CYCLE_NWE(8) | AT91_SMC_CYCLE_NRD(8),
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&smc->cs[3].cycle);
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writel(AT91_SMC_TIMINGS_TCLR(3) | AT91_SMC_TIMINGS_TADL(10) |
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AT91_SMC_TIMINGS_TAR(3) | AT91_SMC_TIMINGS_TRR(4) |
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AT91_SMC_TIMINGS_TWB(5) | AT91_SMC_TIMINGS_RBNSEL(3) |
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AT91_SMC_TIMINGS_NFSEL(1), &smc->cs[3].timings);
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writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
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AT91_SMC_MODE_EXNW_DISABLE |
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AT91_SMC_MODE_DBW_8 |
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AT91_SMC_MODE_TDF_CYCLE(3), &smc->cs[3].mode);
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/* Disable Flash Write Protect Line */
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at91_set_pio_output(AT91_PIO_PORTE, 14, 1);
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}
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int board_early_init_f(void)
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{
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at91_periph_clk_enable(ATMEL_ID_PIOA);
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at91_periph_clk_enable(ATMEL_ID_PIOB);
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at91_periph_clk_enable(ATMEL_ID_PIOC);
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at91_periph_clk_enable(ATMEL_ID_PIOD);
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at91_periph_clk_enable(ATMEL_ID_PIOE);
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at91_seriald_hw_init();
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return 0;
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}
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int board_init(void)
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{
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/* adress of boot parameters */
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gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
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wb50n_nand_hw_init();
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at91_macb_hw_init();
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return 0;
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}
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int dram_init(void)
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{
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gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
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CONFIG_SYS_SDRAM_SIZE);
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return 0;
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}
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int board_phy_config(struct phy_device *phydev)
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{
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/* rx data delay */
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ksz9021_phy_extended_write(phydev,
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MII_KSZ9021_EXT_RGMII_RX_DATA_SKEW, 0x2222);
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/* tx data delay */
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ksz9021_phy_extended_write(phydev,
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MII_KSZ9021_EXT_RGMII_TX_DATA_SKEW, 0x2222);
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/* rx/tx clock delay */
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ksz9021_phy_extended_write(phydev,
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MII_KSZ9021_EXT_RGMII_CLOCK_SKEW, 0xf2f4);
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return 0;
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}
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int board_eth_init(bd_t *bis)
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{
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int rc = 0;
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rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC, 0x00);
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return rc;
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}
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#ifdef CONFIG_BOARD_LATE_INIT
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#include <linux/ctype.h>
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int board_late_init(void)
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{
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#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
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const char *LAIRD_NAME = "lrd_name";
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char name[32], *p;
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strcpy(name, get_cpu_name());
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for (p = name; *p != '\0'; *p = tolower(*p), p++)
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;
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strcat(name, "-wb50n");
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env_set(LAIRD_NAME, name);
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#endif
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return 0;
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}
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#endif
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/* SPL */
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#ifdef CONFIG_SPL_BUILD
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void spl_board_init(void)
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{
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wb50n_nand_hw_init();
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}
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static void ddr2_conf(struct atmel_mpddrc_config *ddr2)
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{
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ddr2->md = (ATMEL_MPDDRC_MD_DBW_32_BITS | ATMEL_MPDDRC_MD_LPDDR_SDRAM);
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ddr2->cr = (ATMEL_MPDDRC_CR_NC_COL_9 |
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ATMEL_MPDDRC_CR_NR_ROW_13 |
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ATMEL_MPDDRC_CR_CAS_DDR_CAS3 |
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ATMEL_MPDDRC_CR_NDQS_DISABLED |
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ATMEL_MPDDRC_CR_DECOD_INTERLEAVED |
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ATMEL_MPDDRC_CR_UNAL_SUPPORTED);
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ddr2->rtr = 0x411;
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ddr2->tpr0 = (6 << ATMEL_MPDDRC_TPR0_TRAS_OFFSET |
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2 << ATMEL_MPDDRC_TPR0_TRCD_OFFSET |
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2 << ATMEL_MPDDRC_TPR0_TWR_OFFSET |
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8 << ATMEL_MPDDRC_TPR0_TRC_OFFSET |
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2 << ATMEL_MPDDRC_TPR0_TRP_OFFSET |
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2 << ATMEL_MPDDRC_TPR0_TRRD_OFFSET |
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2 << ATMEL_MPDDRC_TPR0_TWTR_OFFSET |
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2 << ATMEL_MPDDRC_TPR0_TMRD_OFFSET);
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ddr2->tpr1 = (2 << ATMEL_MPDDRC_TPR1_TXP_OFFSET |
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200 << ATMEL_MPDDRC_TPR1_TXSRD_OFFSET |
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19 << ATMEL_MPDDRC_TPR1_TXSNR_OFFSET |
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18 << ATMEL_MPDDRC_TPR1_TRFC_OFFSET);
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ddr2->tpr2 = (7 << ATMEL_MPDDRC_TPR2_TFAW_OFFSET |
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2 << ATMEL_MPDDRC_TPR2_TRTP_OFFSET |
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3 << ATMEL_MPDDRC_TPR2_TRPA_OFFSET |
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7 << ATMEL_MPDDRC_TPR2_TXARDS_OFFSET |
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2 << ATMEL_MPDDRC_TPR2_TXARD_OFFSET);
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}
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void mem_init(void)
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{
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struct atmel_mpddrc_config ddr2;
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ddr2_conf(&ddr2);
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configure_ddrcfg_input_buffers(true);
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/* enable MPDDR clock */
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at91_periph_clk_enable(ATMEL_ID_MPDDRC);
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at91_system_clk_enable(AT91_PMC_DDR);
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/* DDRAM2 Controller initialize */
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ddr2_init(ATMEL_BASE_MPDDRC, ATMEL_BASE_DDRCS, &ddr2);
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}
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void at91_pmc_init(void)
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{
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u32 tmp;
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tmp = AT91_PMC_PLLAR_29 |
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AT91_PMC_PLLXR_PLLCOUNT(0x3f) |
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AT91_PMC_PLLXR_MUL(43) | AT91_PMC_PLLXR_DIV(1);
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at91_plla_init(tmp);
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at91_pllicpr_init(AT91_PMC_IPLL_PLLA(0x3));
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tmp = AT91_PMC_MCKR_MDIV_4 | AT91_PMC_MCKR_CSS_PLLA;
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at91_mck_init(tmp);
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}
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#endif
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