Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-08 22:24:32 +00:00
Code Issues Projects Releases Packages Wiki Activity
u-boot/board/atmel/at91sam9n12ek/at91sam9n12ek.c
Masahiro Yamada b75d8dc564 treewide: convert bd_t to struct bd_info by coccinelle 
The Linux coding style guide (Documentation/process/coding-style.rst)
clearly says:

  It's a **mistake** to use typedef for structures and pointers.

Besides, using typedef for structures is annoying when you try to make
headers self-contained.

Let's say you have the following function declaration in a header:

  void foo(bd_t *bd);

This is not self-contained since bd_t is not defined.

To tell the compiler what 'bd_t' is, you need to include <asm/u-boot.h>

  #include <asm/u-boot.h>
  void foo(bd_t *bd);

Then, the include direcective pulls in more bloat needlessly.

If you use 'struct bd_info' instead, it is enough to put a forward
declaration as follows:

  struct bd_info;
  void foo(struct bd_info *bd);

Right, typedef'ing bd_t is a mistake.

I used coccinelle to generate this commit.

The semantic patch that makes this change is as follows:

  <smpl>
  @@
  typedef bd_t;
  @@
  -bd_t
  +struct bd_info
  </smpl>

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-07-17 09:30:13 -04:00

294 lines
7.1 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2013 Atmel Corporation
* Josh Wu <josh.wu@atmel.com>
*/
#include <common.h>
#include <init.h>
#include <net.h>
#include <vsprintf.h>
#include <asm/io.h>
#include <asm/arch/at91sam9x5_matrix.h>
#include <asm/arch/at91sam9_smc.h>
#include <asm/arch/at91_common.h>
#include <asm/arch/at91_rstc.h>
#include <asm/arch/at91_pio.h>
#include <asm/arch/clk.h>
#include <debug_uart.h>
#include <lcd.h>
#include <atmel_hlcdc.h>
#include <netdev.h>
#ifdef CONFIG_LCD_INFO
#include <nand.h>
#include <version.h>
#endif
DECLARE_GLOBAL_DATA_PTR;
/* ------------------------------------------------------------------------- */
/*
* Miscelaneous platform dependent initialisations
*/
#ifdef CONFIG_NAND_ATMEL
static void at91sam9n12ek_nand_hw_init(void)
{
struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
unsigned long csa;
/* Assign CS3 to NAND/SmartMedia Interface */
csa = readl(&matrix->ebicsa);
csa |= AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA;
/* Configure databus */
csa &= ~AT91_MATRIX_NFD0_ON_D16; /* nandflash connect to D0~D15 */
/* Configure IO drive */
csa |= AT91_MATRIX_EBI_EBI_IOSR_NORMAL;
writel(csa, &matrix->ebicsa);
/* Configure SMC CS3 for NAND/SmartMedia */
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[3].setup);
writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(5) |
AT91_SMC_PULSE_NRD(4) | AT91_SMC_PULSE_NCS_RD(6),
&smc->cs[3].pulse);
writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(7),
&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(1),
&smc->cs[3].mode);
/* Configure RDY/BSY pin */
at91_set_pio_input(AT91_PIO_PORTD, 5, 1);
/* Configure ENABLE pin for NandFlash */
at91_set_pio_output(AT91_PIO_PORTD, 4, 1);
at91_pio3_set_a_periph(AT91_PIO_PORTD, 0, 1); /* NAND OE */
at91_pio3_set_a_periph(AT91_PIO_PORTD, 1, 1); /* NAND WE */
at91_pio3_set_a_periph(AT91_PIO_PORTD, 2, 1); /* ALE */
at91_pio3_set_a_periph(AT91_PIO_PORTD, 3, 1); /* CLE */
}
#endif
#ifdef CONFIG_LCD
vidinfo_t panel_info = {
.vl_col = 480,
.vl_row = 272,
.vl_clk = 9000000,
.vl_bpix = LCD_BPP,
.vl_sync = 0,
.vl_tft = 1,
.vl_hsync_len = 5,
.vl_left_margin = 8,
.vl_right_margin = 43,
.vl_vsync_len = 10,
.vl_upper_margin = 4,
.vl_lower_margin = 12,
.mmio = ATMEL_BASE_LCDC,
};
void lcd_enable(void)
{
at91_set_pio_output(AT91_PIO_PORTC, 25, 0); /* power up */
}
void lcd_disable(void)
{
at91_set_pio_output(AT91_PIO_PORTC, 25, 1); /* power down */
}
#ifdef CONFIG_LCD_INFO
void lcd_show_board_info(void)
{
ulong dram_size, nand_size;
int i;
char temp[32];
lcd_printf("%s\n", U_BOOT_VERSION);
lcd_printf("ATMEL Corp\n");
lcd_printf("at91@atmel.com\n");
lcd_printf("%s CPU at %s MHz\n",
ATMEL_CPU_NAME,
strmhz(temp, get_cpu_clk_rate()));
dram_size = 0;
for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
dram_size += gd->bd->bi_dram[i].size;
nand_size = 0;
for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
nand_size += get_nand_dev_by_index(i)->size;
lcd_printf(" %ld MB SDRAM, %ld MB NAND\n",
dram_size >> 20,
nand_size >> 20);
}
#endif /* CONFIG_LCD_INFO */
#endif /* CONFIG_LCD */
#ifdef CONFIG_KS8851_MLL
void at91sam9n12ek_ks8851_hw_init(void)
{
struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(0) |
AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
&smc->cs[2].setup);
writel(AT91_SMC_PULSE_NWE(7) | AT91_SMC_PULSE_NCS_WR(7) |
AT91_SMC_PULSE_NRD(7) | AT91_SMC_PULSE_NCS_RD(7),
&smc->cs[2].pulse);
writel(AT91_SMC_CYCLE_NWE(9) | AT91_SMC_CYCLE_NRD(9),
&smc->cs[2].cycle);
writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
AT91_SMC_MODE_EXNW_DISABLE |
AT91_SMC_MODE_BAT | AT91_SMC_MODE_DBW_16 |
AT91_SMC_MODE_TDF_CYCLE(1),
&smc->cs[2].mode);
/* Configure NCS2 PIN */
at91_pio3_set_b_periph(AT91_PIO_PORTD, 19, 0);
}
#endif
#ifdef CONFIG_USB_ATMEL
void at91sam9n12ek_usb_hw_init(void)
{
at91_set_pio_output(AT91_PIO_PORTB, 7, 0);
}
#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
at91sam9n12ek_nand_hw_init();
#endif
#ifdef CONFIG_LCD
at91_lcd_hw_init();
#endif
#ifdef CONFIG_KS8851_MLL
at91sam9n12ek_ks8851_hw_init();
#endif
#ifdef CONFIG_USB_ATMEL
at91sam9n12ek_usb_hw_init();
#endif
return 0;
}
#ifdef CONFIG_KS8851_MLL
int board_eth_init(struct bd_info *bis)
{
return ks8851_mll_initialize(0, CONFIG_KS8851_MLL_BASEADDR);
}
#endif
int dram_init(void)
{
gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
CONFIG_SYS_SDRAM_SIZE);
return 0;
}
#if defined(CONFIG_SPL_BUILD)
#include <spl.h>
#include <nand.h>
void at91_spl_board_init(void)
{
#ifdef CONFIG_SD_BOOT
at91_mci_hw_init();
#elif CONFIG_NAND_BOOT
at91sam9n12ek_nand_hw_init();
#elif CONFIG_SPI_BOOT
at91_spi0_hw_init(1 << 4);
#endif
}
#include <asm/arch/atmel_mpddrc.h>
static void ddr2_conf(struct atmel_mpddrc_config *ddr2)
{
ddr2->md = (ATMEL_MPDDRC_MD_DBW_16_BITS | ATMEL_MPDDRC_MD_DDR2_SDRAM);
ddr2->cr = (ATMEL_MPDDRC_CR_NC_COL_10 |
ATMEL_MPDDRC_CR_NR_ROW_13 |
ATMEL_MPDDRC_CR_CAS_DDR_CAS3 |
ATMEL_MPDDRC_CR_NB_8BANKS |
ATMEL_MPDDRC_CR_DECOD_INTERLEAVED);
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 |
19 << ATMEL_MPDDRC_TPR1_TXSNR_OFFSET |
18 << ATMEL_MPDDRC_TPR1_TRFC_OFFSET);
ddr2->tpr2 = (2 << ATMEL_MPDDRC_TPR2_TRTP_OFFSET |
3 << ATMEL_MPDDRC_TPR2_TRPA_OFFSET |
7 << ATMEL_MPDDRC_TPR2_TXARDS_OFFSET |
2 << ATMEL_MPDDRC_TPR2_TXARD_OFFSET);
}
void mem_init(void)
{
struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
struct atmel_mpddrc_config ddr2;
unsigned long csa;
ddr2_conf(&ddr2);
/* enable DDR2 clock */
writel(AT91_PMC_DDR, &pmc->scer);
/* Chip select 1 is for DDR2/SDRAM */
csa = readl(&matrix->ebicsa);
csa |= AT91_MATRIX_EBI_CS1A_SDRAMC;
csa &= ~AT91_MATRIX_EBI_DBPU_OFF;
csa |= AT91_MATRIX_EBI_DBPD_OFF;
csa |= AT91_MATRIX_EBI_EBI_IOSR_NORMAL;
writel(csa, &matrix->ebicsa);
/* DDRAM2 Controller initialize */
ddr2_init(ATMEL_BASE_DDRSDRC, ATMEL_BASE_CS1, &ddr2);
}
#endif
Reference in a new issue View git blame Copy permalink