mirror of
https://github.com/AsahiLinux/u-boot
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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
217 lines
5.5 KiB
C
217 lines
5.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2014 Atmel
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* Bo Shen <voice.shen@atmel.com>
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/arch/at91_common.h>
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#include <asm/arch/at91_rstc.h>
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#include <asm/arch/atmel_mpddrc.h>
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#include <asm/arch/gpio.h>
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#include <asm/arch/clk.h>
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#include <asm/arch/sama5d3_smc.h>
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#include <asm/arch/sama5d4.h>
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#include <debug_uart.h>
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DECLARE_GLOBAL_DATA_PTR;
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#ifdef CONFIG_NAND_ATMEL
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static void sama5d4_xplained_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 */
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writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(1) |
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AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(1),
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&smc->cs[3].setup);
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writel(AT91_SMC_PULSE_NWE(2) | AT91_SMC_PULSE_NCS_WR(3) |
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AT91_SMC_PULSE_NRD(2) | AT91_SMC_PULSE_NCS_RD(3),
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&smc->cs[3].pulse);
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writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5),
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&smc->cs[3].cycle);
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writel(AT91_SMC_TIMINGS_TCLR(2) | AT91_SMC_TIMINGS_TADL(7) |
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AT91_SMC_TIMINGS_TAR(2) | AT91_SMC_TIMINGS_TRR(3) |
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AT91_SMC_TIMINGS_TWB(7) | 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),
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&smc->cs[3].mode);
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at91_pio3_set_a_periph(AT91_PIO_PORTC, 5, 0); /* D0 */
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at91_pio3_set_a_periph(AT91_PIO_PORTC, 6, 0); /* D1 */
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at91_pio3_set_a_periph(AT91_PIO_PORTC, 7, 0); /* D2 */
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at91_pio3_set_a_periph(AT91_PIO_PORTC, 8, 0); /* D3 */
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at91_pio3_set_a_periph(AT91_PIO_PORTC, 9, 0); /* D4 */
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at91_pio3_set_a_periph(AT91_PIO_PORTC, 10, 0); /* D5 */
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at91_pio3_set_a_periph(AT91_PIO_PORTC, 11, 0); /* D6 */
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at91_pio3_set_a_periph(AT91_PIO_PORTC, 12, 0); /* D7 */
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at91_pio3_set_a_periph(AT91_PIO_PORTC, 13, 0); /* RE */
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at91_pio3_set_a_periph(AT91_PIO_PORTC, 14, 0); /* WE */
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at91_pio3_set_a_periph(AT91_PIO_PORTC, 15, 1); /* NCS */
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at91_pio3_set_a_periph(AT91_PIO_PORTC, 16, 1); /* RDY */
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at91_pio3_set_a_periph(AT91_PIO_PORTC, 17, 1); /* ALE */
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at91_pio3_set_a_periph(AT91_PIO_PORTC, 18, 1); /* CLE */
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}
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#endif
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#ifdef CONFIG_CMD_USB
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static void sama5d4_xplained_usb_hw_init(void)
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{
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at91_set_pio_output(AT91_PIO_PORTE, 11, 1);
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at91_set_pio_output(AT91_PIO_PORTE, 14, 1);
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}
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#endif
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#ifdef CONFIG_BOARD_LATE_INIT
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int board_late_init(void)
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{
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#ifdef CONFIG_DM_VIDEO
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at91_video_show_board_info();
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#endif
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return 0;
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}
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#endif
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#ifdef CONFIG_DEBUG_UART_BOARD_INIT
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static void sama5d4_xplained_serial3_hw_init(void)
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{
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at91_pio3_set_b_periph(AT91_PIO_PORTE, 17, 1); /* TXD3 */
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at91_pio3_set_b_periph(AT91_PIO_PORTE, 16, 0); /* RXD3 */
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/* Enable clock */
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at91_periph_clk_enable(ATMEL_ID_USART3);
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}
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void board_debug_uart_init(void)
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{
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sama5d4_xplained_serial3_hw_init();
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}
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#endif
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#ifdef CONFIG_BOARD_EARLY_INIT_F
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int board_early_init_f(void)
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{
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#ifdef CONFIG_DEBUG_UART
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debug_uart_init();
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#endif
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return 0;
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}
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#endif
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#define AT24MAC_MAC_OFFSET 0x9a
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#ifdef CONFIG_MISC_INIT_R
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int misc_init_r(void)
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{
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#ifdef CONFIG_I2C_EEPROM
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at91_set_ethaddr(AT24MAC_MAC_OFFSET);
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#endif
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return 0;
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}
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#endif
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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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#ifdef CONFIG_NAND_ATMEL
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sama5d4_xplained_nand_hw_init();
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#endif
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#ifdef CONFIG_CMD_USB
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sama5d4_xplained_usb_hw_init();
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#endif
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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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/* 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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#if CONFIG_NAND_BOOT
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sama5d4_xplained_nand_hw_init();
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#endif
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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_DDR2_SDRAM);
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ddr2->cr = (ATMEL_MPDDRC_CR_NC_COL_10 |
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ATMEL_MPDDRC_CR_NR_ROW_14 |
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ATMEL_MPDDRC_CR_CAS_DDR_CAS3 |
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ATMEL_MPDDRC_CR_NB_8BANKS |
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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 = 0x2b0;
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ddr2->tpr0 = (8 << ATMEL_MPDDRC_TPR0_TRAS_OFFSET |
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3 << ATMEL_MPDDRC_TPR0_TRCD_OFFSET |
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3 << ATMEL_MPDDRC_TPR0_TWR_OFFSET |
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10 << ATMEL_MPDDRC_TPR0_TRC_OFFSET |
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3 << 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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25 << ATMEL_MPDDRC_TPR1_TXSNR_OFFSET |
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23 << 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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2 << ATMEL_MPDDRC_TPR2_TXARDS_OFFSET |
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8 << 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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/* 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(87) |
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AT91_PMC_PLLXR_DIV(1);
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at91_plla_init(tmp);
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at91_pllicpr_init(AT91_PMC_IPLL_PLLA(0x0));
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tmp = AT91_PMC_MCKR_H32MXDIV |
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AT91_PMC_MCKR_PLLADIV_2 |
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AT91_PMC_MCKR_MDIV_3 |
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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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