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u-boot-brain/board/siemens/smartweb/smartweb.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

265 lines
6.5 KiB
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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>
*
* Achim Ehrlich <aehrlich@taskit.de>
* taskit GmbH <www.taskit.de>
*
* (C) Copyright 2012-
* Markus Hubig <mhubig@imko.de>
* IMKO GmbH <www.imko.de>
* (C) Copyright 2014
* Heiko Schocher <hs@denx.de>
* DENX Software Engineering GmbH
*/
#include <common.h>
#include <dm.h>
#include <asm/io.h>
#include <asm/arch/at91sam9_sdramc.h>
#include <asm/arch/at91sam9260_matrix.h>
#include <asm/arch/at91sam9_smc.h>
#include <asm/arch/at91_common.h>
#include <asm/arch/atmel_serial.h>
#include <asm/arch/at91_spi.h>
#include <spi.h>
#include <asm/arch/clk.h>
#include <asm/arch/gpio.h>
#include <asm/gpio.h>
#include <watchdog.h>
# include <net.h>
#ifndef CONFIG_DM_ETH
# include <netdev.h>
#endif
#include <g_dnl.h>
DECLARE_GLOBAL_DATA_PTR;
static void smartweb_request_gpio(void)
{
gpio_request(CONFIG_SYS_NAND_ENABLE_PIN, "nand ena");
gpio_request(CONFIG_SYS_NAND_READY_PIN, "nand rdy");
gpio_request(AT91_PIN_PA26, "ena PHY");
}
static void smartweb_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_CS3A_SMC_SMARTMEDIA;
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(1) | AT91_SMC_SETUP_NCS_RD(0),
&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_TDF_CYCLE(2),
&smc->cs[3].mode);
/* Configure RDY/BSY */
at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
/* Enable NandFlash */
at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
}
static void smartweb_macb_hw_init(void)
{
struct at91_port *pioa = (struct at91_port *)ATMEL_BASE_PIOA;
/* Enable the PHY Chip via PA26 on the Stamp 2 Adaptor */
at91_set_gpio_output(AT91_PIN_PA26, 0);
/*
* Disable pull-up on:
* RXDV (PA17) => PHY normal mode (not Test mode)
* ERX0 (PA14) => PHY ADDR0
* ERX1 (PA15) => PHY ADDR1
* ERX2 (PA25) => PHY ADDR2
* ERX3 (PA26) => PHY ADDR3
* ECRS (PA28) => PHY ADDR4 => PHYADDR = 0x0
*
* PHY has internal pull-down
*/
writel(pin_to_mask(AT91_PIN_PA14) |
pin_to_mask(AT91_PIN_PA15) |
pin_to_mask(AT91_PIN_PA17) |
pin_to_mask(AT91_PIN_PA25) |
pin_to_mask(AT91_PIN_PA26) |
pin_to_mask(AT91_PIN_PA28) |
pin_to_mask(AT91_PIN_PA29),
&pioa->pudr);
at91_phy_reset();
/* Re-enable pull-up */
writel(pin_to_mask(AT91_PIN_PA14) |
pin_to_mask(AT91_PIN_PA15) |
pin_to_mask(AT91_PIN_PA17) |
pin_to_mask(AT91_PIN_PA25) |
pin_to_mask(AT91_PIN_PA26) |
pin_to_mask(AT91_PIN_PA28) |
pin_to_mask(AT91_PIN_PA29),
&pioa->puer);
/* Initialize EMAC=MACB hardware */
at91_macb_hw_init();
}
#ifdef CONFIG_USB_GADGET_AT91
#include <linux/usb/at91_udc.h>
void at91_udp_hw_init(void)
{
/* Enable PLLB */
at91_pllb_clk_enable(get_pllb_init());
/* Enable UDPCK clock, MCK is enabled in at91_clock_init() */
at91_periph_clk_enable(ATMEL_ID_UDP);
at91_system_clk_enable(AT91SAM926x_PMC_UDP);
}
struct at91_udc_data board_udc_data = {
.baseaddr = ATMEL_BASE_UDP0,
};
#endif
int board_early_init_f(void)
{
/* enable this here, as we have SPL without serial support */
at91_seriald_hw_init();
smartweb_request_gpio();
return 0;
}
int board_init(void)
{
smartweb_request_gpio();
/* power LED red */
at91_set_gpio_output(AT91_PIN_PC6, 0);
at91_set_gpio_output(AT91_PIN_PC7, 1);
/* alarm LED off */
at91_set_gpio_output(AT91_PIN_PC8, 0);
at91_set_gpio_output(AT91_PIN_PC9, 0);
/* prog LED red */
at91_set_gpio_output(AT91_PIN_PC10, 0);
at91_set_gpio_output(AT91_PIN_PC11, 1);
#ifdef CONFIG_USB_GADGET_AT91
at91_udp_hw_init();
at91_udc_probe(&board_udc_data);
#endif
/* Adress of boot parameters */
gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
smartweb_nand_hw_init();
smartweb_macb_hw_init();
return 0;
}
int dram_init(void)
{
gd->ram_size = get_ram_size(
(void *)CONFIG_SYS_SDRAM_BASE,
CONFIG_SYS_SDRAM_SIZE);
return 0;
}
#ifndef CONFIG_DM_ETH
#ifdef CONFIG_MACB
int board_eth_init(bd_t *bis)
{
return macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC0, 0x00);
}
#endif /* CONFIG_MACB */
#endif
#if defined(CONFIG_SPL_BUILD)
#include <spl.h>
#include <nand.h>
#include <spi_flash.h>
void matrix_init(void)
{
struct at91_matrix *mat = (struct at91_matrix *)ATMEL_BASE_MATRIX;
writel((readl(&mat->scfg[3]) & (~AT91_MATRIX_SLOT_CYCLE))
| AT91_MATRIX_SLOT_CYCLE_(0x40),
&mat->scfg[3]);
}
void at91_spl_board_init(void)
{
smartweb_request_gpio();
/* power LED orange */
at91_set_gpio_output(AT91_PIN_PC6, 1);
at91_set_gpio_output(AT91_PIN_PC7, 1);
/* alarm LED orange */
at91_set_gpio_output(AT91_PIN_PC8, 1);
at91_set_gpio_output(AT91_PIN_PC9, 1);
/* prog LED red */
at91_set_gpio_output(AT91_PIN_PC10, 0);
at91_set_gpio_output(AT91_PIN_PC11, 1);
smartweb_nand_hw_init();
at91_set_gpio_input(AT91_PIN_PA28, 1);
at91_set_gpio_input(AT91_PIN_PA29, 1);
/* check if both button are pressed */
if (at91_get_gpio_value(AT91_PIN_PA28) == 0 &&
at91_get_gpio_value(AT91_PIN_PA29) == 0) {
smartweb_nand_hw_init();
nand_init();
spl_nand_erase_one(0, 0);
}
}
#define SDRAM_BASE_CONF (AT91_SDRAMC_NC_9 | AT91_SDRAMC_NR_13 \
| AT91_SDRAMC_CAS_2 \
| AT91_SDRAMC_NB_4 | AT91_SDRAMC_DBW_32 \
| AT91_SDRAMC_TWR_VAL(2) | AT91_SDRAMC_TRC_VAL(7) \
| AT91_SDRAMC_TRP_VAL(2) | AT91_SDRAMC_TRCD_VAL(2) \
| AT91_SDRAMC_TRAS_VAL(5) | AT91_SDRAMC_TXSR_VAL(8))
void mem_init(void)
{
struct at91_matrix *ma = (struct at91_matrix *)ATMEL_BASE_MATRIX;
struct at91_port *port = (struct at91_port *)ATMEL_BASE_PIOC;
struct sdramc_reg setting;
setting.cr = SDRAM_BASE_CONF;
setting.mdr = AT91_SDRAMC_MD_SDRAM;
setting.tr = (CONFIG_SYS_MASTER_CLOCK * 7) / 1000000;
/*
* I write here directly in this register, because this
* approach is smaller than calling at91_set_a_periph() in a
* for loop. This saved me 96 bytes.
*/
writel(0xffff0000, &port->pdr);
writel(readl(&ma->ebicsa) | AT91_MATRIX_CS1A_SDRAMC, &ma->ebicsa);
sdramc_initialize(ATMEL_BASE_CS1, &setting);
}
#endif
int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name)
{
g_dnl_set_serialnumber("1");
return 0;
}
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