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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2007-2008
* Stelian Pop <stelian@popies.net>
* Lead Tech Design <www.leadtechdesign.com>
* Copyright (C) 2008 Ronetix Ilko Iliev (www.ronetix.at)
* Copyright (C) 2009 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
*/
#include <common.h>
#include <init.h>
#include <asm/global_data.h>
#include <linux/sizes.h>
#include <asm/io.h>
#include <asm/gpio.h>
#include <asm/arch/at91sam9_smc.h>
#include <asm/arch/at91_common.h>
#include <asm/arch/at91_rstc.h>
#include <asm/arch/at91_matrix.h>
#include <asm/arch/clk.h>
#include <asm/arch/gpio.h>
#include <asm/mach-types.h>
DECLARE_GLOBAL_DATA_PTR;
/* ------------------------------------------------------------------------- */
/*
* Miscellaneous platform dependent initializations
*/
#ifdef CONFIG_CMD_NAND
static void pm9263_nand_hw_init(void)
{
unsigned long csa;
struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC0;
struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
/* Enable CS3 */
csa = readl(&matrix->csa[0]) | AT91_MATRIX_CSA_EBI_CS3A;
writel(csa, &matrix->csa[0]);
/* Configure SMC CS3 for NAND/SmartMedia */
writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(1) |
AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(1),
&smc->cs[3].setup);
writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(3) |
AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(3),
&smc->cs[3].pulse);
writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5),
&smc->cs[3].cycle);
writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
AT91_SMC_MODE_EXNW_DISABLE |
#ifdef CONFIG_SYS_NAND_DBW_16
AT91_SMC_MODE_DBW_16 |
#else /* CONFIG_SYS_NAND_DBW_8 */
AT91_SMC_MODE_DBW_8 |
#endif
AT91_SMC_MODE_TDF_CYCLE(2),
&smc->cs[3].mode);
/* Configure RDY/BSY */
gpio_direction_input(CONFIG_SYS_NAND_READY_PIN);
/* Enable NandFlash */
gpio_direction_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
}
#endif
#ifdef CONFIG_LCD
#ifdef CONFIG_LCD_IN_PSRAM
#define PSRAM_CRE_PIN AT91_PIO_PORTB, 29
#define PSRAM_CTRL_REG (PHYS_PSRAM + PHYS_PSRAM_SIZE - 2)
/* Initialize the PSRAM memory */
static int pm9263_lcd_hw_psram_init(void)
{
unsigned long csa;
struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC1;
struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
/* Enable CS3 3.3v, no pull-ups */
csa = readl(&matrix->csa[1]) | AT91_MATRIX_CSA_DBPUC |
AT91_MATRIX_CSA_VDDIOMSEL_3_3V;
writel(csa, &matrix->csa[1]);
/* Configure SMC1 CS0 for PSRAM - 16-bit */
writel(AT91_SMC_SETUP_NWE(0) | AT91_SMC_SETUP_NCS_WR(0) |
AT91_SMC_SETUP_NRD(0) | AT91_SMC_SETUP_NCS_RD(0),
&smc->cs[0].setup);
writel(AT91_SMC_PULSE_NWE(7) | AT91_SMC_PULSE_NCS_WR(7) |
AT91_SMC_PULSE_NRD(2) | AT91_SMC_PULSE_NCS_RD(7),
&smc->cs[0].pulse);
writel(AT91_SMC_CYCLE_NWE(8) | AT91_SMC_CYCLE_NRD(8),
&smc->cs[0].cycle);
writel(AT91_SMC_MODE_DBW_16 | AT91_SMC_MODE_PMEN | AT91_SMC_MODE_PS_32,
&smc->cs[0].mode);
/* setup PB29 as output */
at91_set_pio_output(PSRAM_CRE_PIN, 1);
at91_set_pio_value(PSRAM_CRE_PIN, 0); /* set PSRAM_CRE_PIN to '0' */
/* PSRAM: write BCR */
readw(PSRAM_CTRL_REG);
readw(PSRAM_CTRL_REG);
writew(1, PSRAM_CTRL_REG); /* 0 - RCR,1 - BCR */
writew(0x9d4f, PSRAM_CTRL_REG); /* write the BCR */
/* write RCR of the PSRAM */
readw(PSRAM_CTRL_REG);
readw(PSRAM_CTRL_REG);
writew(0, PSRAM_CTRL_REG); /* 0 - RCR,1 - BCR */
/* set RCR; 0x10-async mode,0x90-page mode */
writew(0x90, PSRAM_CTRL_REG);
/*
* test to see if the PSRAM is MT45W2M16A or MT45W2M16B
* MT45W2M16B - CRE must be 0
* MT45W2M16A - CRE must be 1
*/
writew(0x1234, PHYS_PSRAM);
writew(0x5678, PHYS_PSRAM + 2);
/* test if the chip is MT45W2M16B */
if ((readw(PHYS_PSRAM) != 0x1234) || (readw(PHYS_PSRAM+2) != 0x5678)) {
/* try with CRE=1 (MT45W2M16A) */
at91_set_pio_value(PSRAM_CRE_PIN, 1); /* set PSRAM_CRE_PIN to '1' */
/* write RCR of the PSRAM */
readw(PSRAM_CTRL_REG);
readw(PSRAM_CTRL_REG);
writew(0, PSRAM_CTRL_REG); /* 0 - RCR,1 - BCR */
/* set RCR;0x10-async mode,0x90-page mode */
writew(0x90, PSRAM_CTRL_REG);
writew(0x1234, PHYS_PSRAM);
writew(0x5678, PHYS_PSRAM+2);
if ((readw(PHYS_PSRAM) != 0x1234)
|| (readw(PHYS_PSRAM + 2) != 0x5678))
return 1;
}
/* Bus matrix */
writel(AT91_MATRIX_PRA_M5(3), &matrix->pr[5].a);
writel(CONFIG_PSRAM_SCFG, &matrix->scfg[5]);
return 0;
}
#endif
static void pm9263_lcd_hw_init(void)
{
/* Power Control */
at91_set_pio_output(AT91_PIO_PORTA, 22, 1);
at91_set_pio_value(AT91_PIO_PORTA, 22, 0); /* power down */
#ifdef CONFIG_LCD_IN_PSRAM
/* initialize the PSRAM */
int stat = pm9263_lcd_hw_psram_init();
gd->fb_base = (stat == 0) ? PHYS_PSRAM : ATMEL_BASE_SRAM0;
#else
gd->fb_base = ATMEL_BASE_SRAM0;
#endif
}
#endif /* CONFIG_LCD */
int board_early_init_f(void)
{
return 0;
}
int board_init(void)
{
/* arch number of PM9263 Board */
gd->bd->bi_arch_number = MACH_TYPE_PM9263;
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
#ifdef CONFIG_CMD_NAND
pm9263_nand_hw_init();
#endif
#ifdef CONFIG_USB_OHCI_NEW
at91_uhp_hw_init();
#endif
#ifdef CONFIG_LCD
pm9263_lcd_hw_init();
#endif
return 0;
}
int dram_init(void)
{
/* dram_init must store complete RAM size in gd->ram_size */
gd->ram_size = get_ram_size((void *)PHYS_SDRAM,
PHYS_SDRAM_SIZE);
return 0;
}
int dram_init_banksize(void)
{
gd->bd->bi_dram[0].start = PHYS_SDRAM;
gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
return 0;
}
#ifdef CONFIG_DISPLAY_BOARDINFO
int checkboard (void)
{
char *ss;
printf ("Board : Ronetix PM9263\n");
switch (gd->fb_base) {
case PHYS_PSRAM:
ss = "(PSRAM)";
break;
case ATMEL_BASE_SRAM0:
ss = "(Internal SRAM)";
break;
default:
ss = "";
break;
}
printf("Video memory : 0x%08lX %s\n", gd->fb_base, ss );
printf ("\n");
return 0;
}
#endif
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