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u-boot/board/atmel/sama5d3xek/sama5d3xek.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
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>
2018-05-07 09:34:12 -04:00

276 lines
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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2012 - 2013 Atmel Corporation
* Bo Shen <voice.shen@atmel.com>
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/sama5d3_smc.h>
#include <asm/arch/at91_common.h>
#include <asm/arch/at91_rstc.h>
#include <asm/arch/gpio.h>
#include <asm/arch/clk.h>
#include <debug_uart.h>
#include <linux/ctype.h>
#include <phy.h>
#include <micrel.h>
#include <spl.h>
#include <asm/arch/atmel_mpddrc.h>
#include <asm/arch/at91_wdt.h>
DECLARE_GLOBAL_DATA_PTR;
/* ------------------------------------------------------------------------- */
/*
* Miscelaneous platform dependent initialisations
*/
#ifdef CONFIG_NAND_ATMEL
void sama5d3xek_nand_hw_init(void)
{
struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
at91_periph_clk_enable(ATMEL_ID_SMC);
/* Configure SMC CS3 for NAND/SmartMedia */
writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(1) |
AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(1),
&smc->cs[3].setup);
writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(5) |
AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(5),
&smc->cs[3].pulse);
writel(AT91_SMC_CYCLE_NWE(8) | AT91_SMC_CYCLE_NRD(8),
&smc->cs[3].cycle);
writel(AT91_SMC_TIMINGS_TCLR(3) | AT91_SMC_TIMINGS_TADL(10) |
AT91_SMC_TIMINGS_TAR(3) | AT91_SMC_TIMINGS_TRR(4) |
AT91_SMC_TIMINGS_TWB(5) | AT91_SMC_TIMINGS_RBNSEL(3)|
AT91_SMC_TIMINGS_NFSEL(1), &smc->cs[3].timings);
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(3),
&smc->cs[3].mode);
}
#endif
#ifdef CONFIG_MTD_NOR_FLASH
static void sama5d3xek_nor_hw_init(void)
{
struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
at91_periph_clk_enable(ATMEL_ID_SMC);
/* Configure SMC CS0 for NOR flash */
writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(0),
&smc->cs[0].setup);
writel(AT91_SMC_PULSE_NWE(10) | AT91_SMC_PULSE_NCS_WR(11) |
AT91_SMC_PULSE_NRD(10) | AT91_SMC_PULSE_NCS_RD(11),
&smc->cs[0].pulse);
writel(AT91_SMC_CYCLE_NWE(11) | AT91_SMC_CYCLE_NRD(14),
&smc->cs[0].cycle);
writel(AT91_SMC_TIMINGS_TCLR(0) | AT91_SMC_TIMINGS_TADL(0) |
AT91_SMC_TIMINGS_TAR(0) | AT91_SMC_TIMINGS_TRR(0) |
AT91_SMC_TIMINGS_TWB(0) | AT91_SMC_TIMINGS_RBNSEL(0)|
AT91_SMC_TIMINGS_NFSEL(0), &smc->cs[0].timings);
writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
AT91_SMC_MODE_EXNW_DISABLE |
AT91_SMC_MODE_DBW_16 |
AT91_SMC_MODE_TDF_CYCLE(1),
&smc->cs[0].mode);
/* Address pin (A1 ~ A23) configuration */
at91_pio3_set_a_periph(AT91_PIO_PORTE, 1, 0);
at91_pio3_set_a_periph(AT91_PIO_PORTE, 2, 0);
at91_pio3_set_a_periph(AT91_PIO_PORTE, 3, 0);
at91_pio3_set_a_periph(AT91_PIO_PORTE, 4, 0);
at91_pio3_set_a_periph(AT91_PIO_PORTE, 5, 0);
at91_pio3_set_a_periph(AT91_PIO_PORTE, 6, 0);
at91_pio3_set_a_periph(AT91_PIO_PORTE, 7, 0);
at91_pio3_set_a_periph(AT91_PIO_PORTE, 8, 0);
at91_pio3_set_a_periph(AT91_PIO_PORTE, 9, 0);
at91_pio3_set_a_periph(AT91_PIO_PORTE, 10, 0);
at91_pio3_set_a_periph(AT91_PIO_PORTE, 11, 0);
at91_pio3_set_a_periph(AT91_PIO_PORTE, 12, 0);
at91_pio3_set_a_periph(AT91_PIO_PORTE, 13, 0);
at91_pio3_set_a_periph(AT91_PIO_PORTE, 14, 0);
at91_pio3_set_a_periph(AT91_PIO_PORTE, 15, 0);
at91_pio3_set_a_periph(AT91_PIO_PORTE, 16, 0);
at91_pio3_set_a_periph(AT91_PIO_PORTE, 17, 0);
at91_pio3_set_a_periph(AT91_PIO_PORTE, 18, 0);
at91_pio3_set_a_periph(AT91_PIO_PORTE, 19, 0);
at91_pio3_set_a_periph(AT91_PIO_PORTE, 20, 0);
at91_pio3_set_a_periph(AT91_PIO_PORTE, 21, 0);
at91_pio3_set_a_periph(AT91_PIO_PORTE, 22, 0);
at91_pio3_set_a_periph(AT91_PIO_PORTE, 23, 0);
/* CS0 pin configuration */
at91_pio3_set_a_periph(AT91_PIO_PORTE, 26, 0);
}
#endif
#ifdef CONFIG_CMD_USB
static void sama5d3xek_usb_hw_init(void)
{
at91_set_pio_output(AT91_PIO_PORTD, 25, 0);
at91_set_pio_output(AT91_PIO_PORTD, 26, 0);
at91_set_pio_output(AT91_PIO_PORTD, 27, 0);
}
#endif
#ifdef CONFIG_GENERIC_ATMEL_MCI
static void sama5d3xek_mci_hw_init(void)
{
at91_set_pio_output(AT91_PIO_PORTB, 10, 0); /* MCI0 Power */
}
#endif
#ifdef CONFIG_DEBUG_UART_BOARD_INIT
void board_debug_uart_init(void)
{
at91_seriald_hw_init();
}
#endif
#ifdef CONFIG_BOARD_EARLY_INIT_F
int board_early_init_f(void)
{
#ifdef CONFIG_DEBUG_UART
debug_uart_init();
#endif
return 0;
}
#endif
int board_init(void)
{
/* adress of boot parameters */
gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
#ifdef CONFIG_NAND_ATMEL
sama5d3xek_nand_hw_init();
#endif
#ifdef CONFIG_MTD_NOR_FLASH
sama5d3xek_nor_hw_init();
#endif
#ifdef CONFIG_CMD_USB
sama5d3xek_usb_hw_init();
#endif
#ifdef CONFIG_GENERIC_ATMEL_MCI
sama5d3xek_mci_hw_init();
#endif
return 0;
}
int dram_init(void)
{
gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
CONFIG_SYS_SDRAM_SIZE);
return 0;
}
#ifdef CONFIG_BOARD_LATE_INIT
int board_late_init(void)
{
#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
const int MAX_STR_LEN = 32;
char name[MAX_STR_LEN], *p;
int i;
strncpy(name, get_cpu_name(), MAX_STR_LEN);
for (i = 0, p = name; (*p) && (i < MAX_STR_LEN); p++, i++)
*p = tolower(*p);
strcat(name, "ek.dtb");
env_set("dtb_name", name);
#endif
#ifdef CONFIG_DM_VIDEO
at91_video_show_board_info();
#endif
return 0;
}
#endif
/* SPL */
#ifdef CONFIG_SPL_BUILD
void spl_board_init(void)
{
#if CONFIG_NAND_BOOT
sama5d3xek_nand_hw_init();
#endif
}
static void ddr2_conf(struct atmel_mpddrc_config *ddr2)
{
ddr2->md = (ATMEL_MPDDRC_MD_DBW_32_BITS | ATMEL_MPDDRC_MD_DDR2_SDRAM);
ddr2->cr = (ATMEL_MPDDRC_CR_NC_COL_10 |
ATMEL_MPDDRC_CR_NR_ROW_14 |
ATMEL_MPDDRC_CR_CAS_DDR_CAS3 |
ATMEL_MPDDRC_CR_ENRDM_ON |
ATMEL_MPDDRC_CR_NB_8BANKS |
ATMEL_MPDDRC_CR_NDQS_DISABLED |
ATMEL_MPDDRC_CR_DECOD_INTERLEAVED |
ATMEL_MPDDRC_CR_UNAL_SUPPORTED);
/*
* As the DDR2-SDRAm device requires a refresh time is 7.8125us
* when DDR run at 133MHz, so it needs (7.8125us * 133MHz / 10^9) clocks
*/
ddr2->rtr = 0x411;
ddr2->tpr0 = (6 << ATMEL_MPDDRC_TPR0_TRAS_OFFSET |
2 << ATMEL_MPDDRC_TPR0_TRCD_OFFSET |
2 << ATMEL_MPDDRC_TPR0_TWR_OFFSET |
8 << ATMEL_MPDDRC_TPR0_TRC_OFFSET |
2 << ATMEL_MPDDRC_TPR0_TRP_OFFSET |
2 << ATMEL_MPDDRC_TPR0_TRRD_OFFSET |
2 << ATMEL_MPDDRC_TPR0_TWTR_OFFSET |
2 << ATMEL_MPDDRC_TPR0_TMRD_OFFSET);
ddr2->tpr1 = (2 << ATMEL_MPDDRC_TPR1_TXP_OFFSET |
200 << ATMEL_MPDDRC_TPR1_TXSRD_OFFSET |
28 << ATMEL_MPDDRC_TPR1_TXSNR_OFFSET |
26 << ATMEL_MPDDRC_TPR1_TRFC_OFFSET);
ddr2->tpr2 = (7 << ATMEL_MPDDRC_TPR2_TFAW_OFFSET |
2 << ATMEL_MPDDRC_TPR2_TRTP_OFFSET |
2 << ATMEL_MPDDRC_TPR2_TRPA_OFFSET |
7 << ATMEL_MPDDRC_TPR2_TXARDS_OFFSET |
8 << ATMEL_MPDDRC_TPR2_TXARD_OFFSET);
}
void mem_init(void)
{
struct atmel_mpddrc_config ddr2;
ddr2_conf(&ddr2);
/* Enable MPDDR clock */
at91_periph_clk_enable(ATMEL_ID_MPDDRC);
at91_system_clk_enable(AT91_PMC_DDR);
/* DDRAM2 Controller initialize */
ddr2_init(ATMEL_BASE_MPDDRC, ATMEL_BASE_DDRCS, &ddr2);
}
void at91_pmc_init(void)
{
u32 tmp;
tmp = AT91_PMC_PLLAR_29 |
AT91_PMC_PLLXR_PLLCOUNT(0x3f) |
AT91_PMC_PLLXR_MUL(43) |
AT91_PMC_PLLXR_DIV(1);
at91_plla_init(tmp);
at91_pllicpr_init(AT91_PMC_IPLL_PLLA(0x3));
tmp = AT91_PMC_MCKR_MDIV_4 |
AT91_PMC_MCKR_CSS_PLLA;
at91_mck_init(tmp);
}
#endif
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