u-boot/board/imx31_phycore/imx31_phycore.c

/*
 *
 * (c) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */


#include <common.h>
#include <s6e63d6.h>
#include <netdev.h>
#include <asm/arch/clock.h>
#include <asm/arch/imx-regs.h>
#include <asm/mach-types.h>
#include <asm/arch/sys_proto.h>

DECLARE_GLOBAL_DATA_PTR;

int dram_init(void)
{
	/* dram_init must store complete ramsize in gd->ram_size */
	gd->ram_size = get_ram_size((void *)PHYS_SDRAM_1,
				PHYS_SDRAM_1_SIZE);
	return 0;
}

int board_init(void)
{

	gd->bd->bi_arch_number = MACH_TYPE_PCM037;	/* board id for linux */
	gd->bd->bi_boot_params = (0x80000100);	/* adress of boot parameters */

	return 0;
}

int board_early_init_f(void)
{
	/* CS0: Nor Flash */
	static const struct mxc_weimcs cs0 = {
		/*    sp wp bcd bcs psz pme sync dol cnc wsc ew wws edc */
		CSCR_U(0, 0,  0,  0,  0,  0,   0,  0,  3, 15, 0,  0,  3),
		/*   oea oen ebwa ebwn csa ebc dsz csn psr cre wrap csen */
		CSCR_L(1,  0,   0,   0,  0,  1,  5,  0,  0,  0,   1,   1),
		/*  ebra ebrn rwa rwn mum lah lbn lba dww dct wwu age cnc2 fce*/
		CSCR_A(0,   0,  7,  2,  0,  0,  2,  1,  0,  0,  0,  0,   0,  0)
	};

	/* CS1: Network Controller */
	static const struct mxc_weimcs cs1 = {
		/*    sp wp bcd bcs psz pme sync dol cnc wsc ew wws edc */
		CSCR_U(0, 0,  0,  0,  0,  0,   0,  0,  3, 31, 0,  0,  6),
		/*   oea oen ebwa ebwn csa ebc dsz csn psr cre wrap csen */
		CSCR_L(4,  4,   4,  10,  4,  0,  5,  4,  0,  0,   0,   1),
		/*  ebra ebrn rwa rwn mum lah lbn lba dww dct wwu age cnc2 fce*/
		CSCR_A(4,   4,  4,  4,  0,  1,  4,  3,  0,  0,  0,  0,   1,  0)
	};

	/* CS4: SRAM */
	static const struct mxc_weimcs cs4 = {
		/*    sp wp bcd bcs psz pme sync dol cnc wsc ew wws edc */
		CSCR_U(0, 0,  0,  0,  0,  0,   0,  0,  3, 24, 0,  4,  3),
		/*   oea oen ebwa ebwn csa ebc dsz csn psr cre wrap csen */
		CSCR_L(2,  2,   2,   5,  2,  0,  5,  2,  0,  0,   0,   1),
		/*  ebra ebrn rwa rwn mum lah lbn lba dww dct wwu age cnc2 fce*/
		CSCR_A(2,   2,  2,  2,  0,  0,  2,  2,  0,  0,  0,  0,   0,  0)
	};

	mxc_setup_weimcs(0, &cs0);
	mxc_setup_weimcs(1, &cs1);
	mxc_setup_weimcs(4, &cs4);

	/* setup pins for UART1 */
	mx31_gpio_mux(MUX_RXD1__UART1_RXD_MUX);
	mx31_gpio_mux(MUX_TXD1__UART1_TXD_MUX);
	mx31_gpio_mux(MUX_RTS1__UART1_RTS_B);
	mx31_gpio_mux(MUX_CTS1__UART1_CTS_B);

	/* setup pins for I2C2 (for EEPROM, RTC) */
	mx31_gpio_mux(MUX_CSPI2_MOSI__I2C2_SCL);
	mx31_gpio_mux(MUX_CSPI2_MISO__I2C2_SDA);

	return 0;
}

#ifdef CONFIG_BOARD_LATE_INIT
int board_late_init(void)
{
#ifdef CONFIG_S6E63D6
	struct s6e63d6 data = {
		/*
		 * See comment in mxc_spi.c::decode_cs() for .cs field format.
		 * We use GPIO 57 as a chipselect for the S6E63D6 and chipselect
		 * 2 of the SPI controller #1, since it is unused.
		 */
		.cs = 2 | (57 << 8),
		.bus = 0,
		.id = 0,
	};
	int ret;

	/* SPI1 */
	mx31_gpio_mux(MUX_CSPI1_SCLK__CSPI1_CLK);
	mx31_gpio_mux(MUX_CSPI1_SPI_RDY__CSPI1_DATAREADY_B);
	mx31_gpio_mux(MUX_CSPI1_MOSI__CSPI1_MOSI);
	mx31_gpio_mux(MUX_CSPI1_MISO__CSPI1_MISO);
	mx31_gpio_mux(MUX_CSPI1_SS0__CSPI1_SS0_B);
	mx31_gpio_mux(MUX_CSPI1_SS1__CSPI1_SS1_B);
	mx31_gpio_mux(MUX_CSPI1_SS2__CSPI1_SS2_B);

	/* start SPI1 clock */
	__REG(CCM_CGR2) = __REG(CCM_CGR2) | (3 << 2);

	/* GPIO 57 */
	/* sw_mux_ctl_key_col4_key_col5_key_col6_key_col7 */
	mx31_gpio_mux(IOMUX_MODE(0x63, MUX_CTL_GPIO));

	/* SPI1 CS2 is free */
	ret = s6e63d6_init(&data);
	if (ret)
		return ret;

	/*
	 * This is a "magic" sequence to initialise a C0240QGLA / C0283QGLC
	 * OLED display connected to a S6E63D6 SPI display controller in the
	 * 18 bit RGB mode
	 */
	s6e63d6_index(&data, 2);
	s6e63d6_param(&data, 0x0182);
	s6e63d6_index(&data, 3);
	s6e63d6_param(&data, 0x8130);
	s6e63d6_index(&data, 0x10);
	s6e63d6_param(&data, 0x0000);
	s6e63d6_index(&data, 5);
	s6e63d6_param(&data, 0x0001);
	s6e63d6_index(&data, 0x22);
#endif
	return 0;
}
#endif

int checkboard (void)
{
	printf("Board: Phytec phyCore i.MX31\n");
	return 0;
}

int board_eth_init(bd_t *bis)
{
	int rc = 0;
#ifdef CONFIG_SMC911X
	rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
#endif
	return rc;
}