upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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344 lines
8.2 KiB
344 lines
8.2 KiB
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Board functions for mini-box PICOSAM9G45 (AT91SAM9G45) based board
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* (C) Copyright 2015 Inter Act B.V.
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*
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* Based on:
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* U-Boot file: board/atmel/at91sam9m10g45ek/at91sam9m10g45ek.c
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* (C) Copyright 2007-2008
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* Stelian Pop <stelian@popies.net>
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* Lead Tech Design <www.leadtechdesign.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/clk.h>
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#include <asm/arch/at91sam9g45_matrix.h>
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#include <asm/arch/at91sam9_smc.h>
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#include <asm/arch/at91_common.h>
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#include <asm/arch/gpio.h>
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#include <asm/arch/clk.h>
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#include <lcd.h>
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#include <linux/mtd/rawnand.h>
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#include <atmel_lcdc.h>
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#include <atmel_mci.h>
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#if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
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#include <net.h>
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#endif
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#include <netdev.h>
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#include <asm/mach-types.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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#if defined(CONFIG_SPL_BUILD)
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#include <spl.h>
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void at91_spl_board_init(void)
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{
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#ifdef CONFIG_SYS_USE_MMC
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at91_mci_hw_init();
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#endif
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}
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#include <asm/arch/atmel_mpddrc.h>
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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_16_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_DQMS_SHARED |
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ATMEL_MPDDRC_CR_CAS_DDR_CAS3);
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ddr2->rtr = 0x24b;
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ddr2->tpr0 = (6 << ATMEL_MPDDRC_TPR0_TRAS_OFFSET |/* 6*7.5 = 45 ns */
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2 << ATMEL_MPDDRC_TPR0_TRCD_OFFSET |/* 2*7.5 = 15 ns */
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2 << ATMEL_MPDDRC_TPR0_TWR_OFFSET | /* 2*7.5 = 15 ns */
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8 << ATMEL_MPDDRC_TPR0_TRC_OFFSET | /* 8*7.5 = 60 ns */
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2 << ATMEL_MPDDRC_TPR0_TRP_OFFSET | /* 2*7.5 = 15 ns */
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1 << ATMEL_MPDDRC_TPR0_TRRD_OFFSET | /* 1*7.5= 7.5 ns*/
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1 << ATMEL_MPDDRC_TPR0_TWTR_OFFSET | /* 1 clk cycle */
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2 << ATMEL_MPDDRC_TPR0_TMRD_OFFSET); /* 2 clk cycles */
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ddr2->tpr1 = (2 << ATMEL_MPDDRC_TPR1_TXP_OFFSET | /* 2*7.5 = 15 ns */
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200 << ATMEL_MPDDRC_TPR1_TXSRD_OFFSET |
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16 << ATMEL_MPDDRC_TPR1_TXSNR_OFFSET |
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14 << ATMEL_MPDDRC_TPR1_TRFC_OFFSET);
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ddr2->tpr2 = (1 << ATMEL_MPDDRC_TPR2_TRTP_OFFSET |
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0 << 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 at91_matrix *mat = (struct at91_matrix *)ATMEL_BASE_MATRIX;
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struct atmel_mpddrc_config ddr2;
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unsigned long csa;
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ddr2_conf(&ddr2);
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at91_system_clk_enable(AT91_PMC_DDR);
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/* Chip select 1 is for DDR2/SDRAM */
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csa = readl(&mat->ebicsa);
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csa |= AT91_MATRIX_EBI_CS1A_SDRAMC;
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csa &= ~AT91_MATRIX_EBI_VDDIOMSEL_3_3V;
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writel(csa, &mat->ebicsa);
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/* DDRAM2 Controller initialize */
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ddr2_init(ATMEL_BASE_DDRSDRC0, ATMEL_BASE_CS6, &ddr2);
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ddr2_init(ATMEL_BASE_DDRSDRC1, ATMEL_BASE_CS1, &ddr2);
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}
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#endif
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#ifdef CONFIG_CMD_USB
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static void picosam9g45_usb_hw_init(void)
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{
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at91_periph_clk_enable(ATMEL_ID_PIODE);
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at91_set_gpio_output(AT91_PIN_PD1, 0);
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at91_set_gpio_output(AT91_PIN_PD3, 0);
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}
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#endif
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#ifdef CONFIG_MACB
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static void picosam9g45_macb_hw_init(void)
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{
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struct at91_port *pioa = (struct at91_port *)ATMEL_BASE_PIOA;
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at91_periph_clk_enable(ATMEL_ID_EMAC);
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/*
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* Disable pull-up on:
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* RXDV (PA15) => PHY normal mode (not Test mode)
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* ERX0 (PA12) => PHY ADDR0
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* ERX1 (PA13) => PHY ADDR1 => PHYADDR = 0x0
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*
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* PHY has internal pull-down
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*/
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writel(pin_to_mask(AT91_PIN_PA15) |
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pin_to_mask(AT91_PIN_PA12) |
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pin_to_mask(AT91_PIN_PA13),
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&pioa->pudr);
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at91_phy_reset();
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/* Re-enable pull-up */
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writel(pin_to_mask(AT91_PIN_PA15) |
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pin_to_mask(AT91_PIN_PA12) |
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pin_to_mask(AT91_PIN_PA13),
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&pioa->puer);
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/* And the pins. */
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at91_macb_hw_init();
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}
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#endif
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#ifdef CONFIG_LCD
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vidinfo_t panel_info = {
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.vl_col = 480,
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.vl_row = 272,
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.vl_clk = 9000000,
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.vl_sync = ATMEL_LCDC_INVLINE_NORMAL |
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ATMEL_LCDC_INVFRAME_NORMAL,
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.vl_bpix = 3,
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.vl_tft = 1,
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.vl_hsync_len = 45,
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.vl_left_margin = 1,
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.vl_right_margin = 1,
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.vl_vsync_len = 1,
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.vl_upper_margin = 40,
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.vl_lower_margin = 1,
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.mmio = ATMEL_BASE_LCDC,
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};
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void lcd_enable(void)
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{
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at91_set_A_periph(AT91_PIN_PE6, 1); /* power up */
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}
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void lcd_disable(void)
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{
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at91_set_A_periph(AT91_PIN_PE6, 0); /* power down */
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}
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static void picosam9g45_lcd_hw_init(void)
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{
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at91_set_A_periph(AT91_PIN_PE0, 0); /* LCDDPWR */
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at91_set_A_periph(AT91_PIN_PE2, 0); /* LCDCC */
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at91_set_A_periph(AT91_PIN_PE3, 0); /* LCDVSYNC */
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at91_set_A_periph(AT91_PIN_PE4, 0); /* LCDHSYNC */
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at91_set_A_periph(AT91_PIN_PE5, 0); /* LCDDOTCK */
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at91_set_A_periph(AT91_PIN_PE7, 0); /* LCDD0 */
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at91_set_A_periph(AT91_PIN_PE8, 0); /* LCDD1 */
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at91_set_A_periph(AT91_PIN_PE9, 0); /* LCDD2 */
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at91_set_A_periph(AT91_PIN_PE10, 0); /* LCDD3 */
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at91_set_A_periph(AT91_PIN_PE11, 0); /* LCDD4 */
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at91_set_A_periph(AT91_PIN_PE12, 0); /* LCDD5 */
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at91_set_A_periph(AT91_PIN_PE13, 0); /* LCDD6 */
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at91_set_A_periph(AT91_PIN_PE14, 0); /* LCDD7 */
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at91_set_A_periph(AT91_PIN_PE15, 0); /* LCDD8 */
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at91_set_A_periph(AT91_PIN_PE16, 0); /* LCDD9 */
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at91_set_A_periph(AT91_PIN_PE17, 0); /* LCDD10 */
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at91_set_A_periph(AT91_PIN_PE18, 0); /* LCDD11 */
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at91_set_A_periph(AT91_PIN_PE19, 0); /* LCDD12 */
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at91_set_B_periph(AT91_PIN_PE20, 0); /* LCDD13 */
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at91_set_A_periph(AT91_PIN_PE21, 0); /* LCDD14 */
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at91_set_A_periph(AT91_PIN_PE22, 0); /* LCDD15 */
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at91_set_A_periph(AT91_PIN_PE23, 0); /* LCDD16 */
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at91_set_A_periph(AT91_PIN_PE24, 0); /* LCDD17 */
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at91_set_A_periph(AT91_PIN_PE25, 0); /* LCDD18 */
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at91_set_A_periph(AT91_PIN_PE26, 0); /* LCDD19 */
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at91_set_A_periph(AT91_PIN_PE27, 0); /* LCDD20 */
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at91_set_B_periph(AT91_PIN_PE28, 0); /* LCDD21 */
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at91_set_A_periph(AT91_PIN_PE29, 0); /* LCDD22 */
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at91_set_A_periph(AT91_PIN_PE30, 0); /* LCDD23 */
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at91_periph_clk_enable(ATMEL_ID_LCDC);
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gd->fb_base = CONFIG_AT91SAM9G45_LCD_BASE;
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}
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#ifdef CONFIG_LCD_INFO
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#include <nand.h>
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#include <version.h>
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void lcd_show_board_info(void)
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{
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ulong dram_size;
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int i;
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char temp[32];
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lcd_printf("%s\n", U_BOOT_VERSION);
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lcd_printf("(C) 2015 Inter Act B.V.\n");
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lcd_printf("support@interact.nl\n");
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lcd_printf("%s CPU at %s MHz\n",
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ATMEL_CPU_NAME,
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strmhz(temp, get_cpu_clk_rate()));
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dram_size = 0;
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for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
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dram_size += gd->bd->bi_dram[i].size;
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lcd_printf(" %ld MB SDRAM\n", dram_size >> 20);
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}
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#endif /* CONFIG_LCD_INFO */
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#endif
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#ifdef CONFIG_GENERIC_ATMEL_MCI
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int board_mmc_init(bd_t *bis)
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{
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at91_mci_hw_init();
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return atmel_mci_init((void *)ATMEL_BASE_MCI0);
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}
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#endif
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int board_early_init_f(void)
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{
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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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gd->bd->bi_arch_number = MACH_TYPE_PICOSAM9G45;
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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_CMD_USB
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picosam9g45_usb_hw_init();
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#endif
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#ifdef CONFIG_ATMEL_SPI
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at91_spi0_hw_init(1 << 4);
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#endif
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#ifdef CONFIG_MACB
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picosam9g45_macb_hw_init();
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#endif
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#ifdef CONFIG_LCD
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picosam9g45_lcd_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((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE)
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+ get_ram_size((long *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
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return 0;
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}
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int dram_init_banksize(void)
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{
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gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
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gd->bd->bi_dram[0].size = get_ram_size((long *)PHYS_SDRAM_1,
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PHYS_SDRAM_1_SIZE);
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gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
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gd->bd->bi_dram[1].size = get_ram_size((long *)PHYS_SDRAM_2,
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PHYS_SDRAM_2_SIZE);
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return 0;
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}
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#ifdef CONFIG_RESET_PHY_R
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void reset_phy(void)
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{
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}
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#endif
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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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#ifdef CONFIG_MACB
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rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC, 0x00);
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#endif
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return rc;
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}
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/* SPI chip select control */
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#ifdef CONFIG_ATMEL_SPI
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#include <spi.h>
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int spi_cs_is_valid(unsigned int bus, unsigned int cs)
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{
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return bus == 0 && cs < 2;
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}
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void spi_cs_activate(struct spi_slave *slave)
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{
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switch (slave->cs) {
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case 1:
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at91_set_gpio_output(AT91_PIN_PB18, 0);
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break;
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case 0:
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default:
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at91_set_gpio_output(AT91_PIN_PB3, 0);
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break;
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}
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}
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void spi_cs_deactivate(struct spi_slave *slave)
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{
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switch (slave->cs) {
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case 1:
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at91_set_gpio_output(AT91_PIN_PB18, 1);
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break;
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case 0:
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default:
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at91_set_gpio_output(AT91_PIN_PB3, 1);
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break;
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}
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}
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#endif /* CONFIG_ATMEL_SPI */
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