mirror of
https://github.com/AsahiLinux/u-boot
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a380279b2a
This patch implements several updates: -disable CONFIG_ENV_OVERWRITE -add new hardware style variants and set the arch numbers appropriate -pass the serial# and hardware revision to the kernel -removed unused macros from include/configs/meesc.h -fixed multiline comment style Signed-off-by: Daniel Gorsulowski <Daniel.Gorsulowski@esd.eu>
249 lines
6.4 KiB
C
249 lines
6.4 KiB
C
/*
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* (C) Copyright 2007-2008
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* Stelian Pop <stelian.pop@leadtechdesign.com>
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* Lead Tech Design <www.leadtechdesign.com>
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*
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* (C) Copyright 2009
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* Daniel Gorsulowski <daniel.gorsulowski@esd.eu>
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* esd electronic system design gmbh <www.esd.eu>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <asm/arch/at91sam9263.h>
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#include <asm/arch/at91sam9_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/at91_pmc.h>
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#include <asm/arch/at91_rstc.h>
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#include <asm/arch/clk.h>
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#include <asm/arch/gpio.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/io.h>
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#include <netdev.h>
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DECLARE_GLOBAL_DATA_PTR;
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/*
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* Miscelaneous platform dependent initialisations
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*/
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static int hw_rev = -1; /* hardware revision */
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int get_hw_rev(void)
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{
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if (hw_rev >= 0)
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return hw_rev;
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hw_rev = at91_get_gpio_value(AT91_PIN_PB19);
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hw_rev |= at91_get_gpio_value(AT91_PIN_PB20) << 1;
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hw_rev |= at91_get_gpio_value(AT91_PIN_PB21) << 2;
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hw_rev |= at91_get_gpio_value(AT91_PIN_PB22) << 3;
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if (hw_rev == 15)
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hw_rev = 0;
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return hw_rev;
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}
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#ifdef CONFIG_CMD_NAND
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static void meesc_nand_hw_init(void)
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{
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unsigned long csa;
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/* Enable CS3 */
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csa = at91_sys_read(AT91_MATRIX_EBI0CSA);
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at91_sys_write(AT91_MATRIX_EBI0CSA,
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csa | AT91_MATRIX_EBI0_CS3A_SMC_SMARTMEDIA);
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/* Configure SMC CS3 for NAND/SmartMedia */
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at91_sys_write(AT91_SMC_SETUP(3),
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AT91_SMC_NWESETUP_(1) | AT91_SMC_NCS_WRSETUP_(0) |
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AT91_SMC_NRDSETUP_(1) | AT91_SMC_NCS_RDSETUP_(0));
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at91_sys_write(AT91_SMC_PULSE(3),
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AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3) |
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AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
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at91_sys_write(AT91_SMC_CYCLE(3),
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AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
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at91_sys_write(AT91_SMC_MODE(3),
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AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
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AT91_SMC_EXNWMODE_DISABLE |
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#ifdef CONFIG_SYS_NAND_DBW_16
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AT91_SMC_DBW_16 |
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#else /* CONFIG_SYS_NAND_DBW_8 */
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AT91_SMC_DBW_8 |
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#endif
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AT91_SMC_TDF_(2));
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/* Configure RDY/BSY */
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at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
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/* Enable NandFlash */
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at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
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}
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#endif /* CONFIG_CMD_NAND */
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#ifdef CONFIG_MACB
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static void meesc_macb_hw_init(void)
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{
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/* Enable clock */
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at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9263_ID_EMAC);
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at91_macb_hw_init();
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}
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#endif
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/*
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* Static memory controller initialization to enable Beckhoff ET1100 EtherCAT
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* controller debugging
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* The ET1100 is located at physical address 0x70000000
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* Its process memory is located at physical address 0x70001000
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*/
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static void meesc_ethercat_hw_init(void)
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{
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/* Configure SMC EBI1_CS0 for EtherCAT */
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at91_sys_write(AT91_SMC1_SETUP(0),
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AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0) |
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AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0));
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at91_sys_write(AT91_SMC1_PULSE(0),
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AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(9) |
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AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(9));
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at91_sys_write(AT91_SMC1_CYCLE(0),
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AT91_SMC_NWECYCLE_(10) | AT91_SMC_NRDCYCLE_(5));
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/*
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* Configure behavior at external wait signal, byte-select mode, 16 bit
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* data bus width, none data float wait states and TDF optimization
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*/
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at91_sys_write(AT91_SMC1_MODE(0),
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AT91_SMC_READMODE | AT91_SMC_EXNWMODE_READY |
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AT91_SMC_BAT_SELECT | AT91_SMC_DBW_16 | AT91_SMC_TDF_(0) |
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AT91_SMC_TDFMODE);
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/* Configure RDY/BSY */
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at91_set_B_periph(AT91_PIN_PE20, 0); /* EBI1_NWAIT */
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}
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int dram_init(void)
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{
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gd->bd->bi_dram[0].start = PHYS_SDRAM;
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gd->bd->bi_dram[0].size = get_ram_size((long *) PHYS_SDRAM, (1 << 27));
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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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#ifdef CONFIG_MACB
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rc = macb_eth_initialize(0, (void *)AT91SAM9263_BASE_EMAC, 0x00);
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#endif
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return rc;
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}
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int checkboard(void)
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{
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char str[32];
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u_char hw_type; /* hardware type */
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/* read the "Type" register of the ET1100 controller */
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hw_type = readb(CONFIG_ET1100_BASE);
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switch (hw_type) {
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case 0x11:
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case 0x3F:
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/* ET1100 present, arch number of MEESC-Board */
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gd->bd->bi_arch_number = MACH_TYPE_MEESC;
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puts("Board: CAN-EtherCAT Gateway");
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break;
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case 0xFF:
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/* no ET1100 present, arch number of EtherCAN/2-Board */
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gd->bd->bi_arch_number = MACH_TYPE_ETHERCAN2;
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puts("Board: EtherCAN/2 Gateway");
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/* switch on LED1D */
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at91_set_gpio_output(AT91_PIN_PB12, 1);
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break;
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default:
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/* assume, no ET1100 present, arch number of EtherCAN/2-Board */
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gd->bd->bi_arch_number = MACH_TYPE_ETHERCAN2;
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printf("ERROR! Read invalid hw_type: %02X\n", hw_type);
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puts("Board: EtherCAN/2 Gateway");
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break;
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}
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if (getenv_r("serial#", str, sizeof(str)) > 0) {
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puts(", serial# ");
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puts(str);
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}
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printf("\nHardware-revision: 1.%d\n", get_hw_rev());
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printf("Mach-type: %lu\n", gd->bd->bi_arch_number);
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return 0;
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}
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#ifdef CONFIG_SERIAL_TAG
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void get_board_serial(struct tag_serialnr *serialnr)
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{
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char *str;
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char *serial = getenv("serial#");
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if (serial) {
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str = strchr(serial, '_');
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if (str && (strlen(str) >= 4)) {
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serialnr->high = (*(str + 1) << 8) | *(str + 2);
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serialnr->low = simple_strtoul(str + 3, NULL, 16);
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}
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} else {
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serialnr->high = 0;
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serialnr->low = 0;
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}
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}
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#endif
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#ifdef CONFIG_REVISION_TAG
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u32 get_board_rev(void)
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{
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return hw_rev | 0x100;
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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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/* Peripheral Clock Enable Register */
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at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9263_ID_PIOA |
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1 << AT91SAM9263_ID_PIOB |
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1 << AT91SAM9263_ID_PIOCDE);
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/* initialize ET1100 Controller */
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meesc_ethercat_hw_init();
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/* adress of boot parameters */
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gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
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at91_serial_hw_init();
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#ifdef CONFIG_CMD_NAND
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meesc_nand_hw_init();
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#endif
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#ifdef CONFIG_HAS_DATAFLASH
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at91_spi0_hw_init(1 << 0);
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#endif
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#ifdef CONFIG_MACB
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meesc_macb_hw_init();
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#endif
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#ifdef CONFIG_AT91_CAN
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at91_can_hw_init();
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#endif
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return 0;
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}
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