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u-boot/board/technologic/ts4800/ts4800.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

258 lines
6.1 KiB
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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2015 Savoir-faire Linux Inc.
*
* Derived from MX51EVK code by
* Freescale Semiconductor, Inc.
*/
#include <common.h>
#include <asm/io.h>
#include <asm/gpio.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/iomux-mx51.h>
#include <linux/errno.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/clock.h>
#include <asm/mach-imx/mx5_video.h>
#include <environment.h>
#include <mmc.h>
#include <input.h>
#include <fsl_esdhc.h>
#include <mc13892.h>
#include <malloc.h>
#include <netdev.h>
#include <phy.h>
#include "ts4800.h"
DECLARE_GLOBAL_DATA_PTR;
#ifdef CONFIG_FSL_ESDHC
struct fsl_esdhc_cfg esdhc_cfg[2] = {
{MMC_SDHC1_BASE_ADDR},
{MMC_SDHC2_BASE_ADDR},
};
#endif
int dram_init(void)
{
/* dram_init must store complete ramsize in gd->ram_size */
gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
PHYS_SDRAM_1_SIZE);
return 0;
}
u32 get_board_rev(void)
{
u32 rev = get_cpu_rev();
if (!gpio_get_value(IMX_GPIO_NR(1, 22)))
rev |= BOARD_REV_2_0 << BOARD_VER_OFFSET;
return rev;
}
#define UART_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN | PAD_CTL_DSE_HIGH)
static void setup_iomux_uart(void)
{
static const iomux_v3_cfg_t uart_pads[] = {
MX51_PAD_UART1_RXD__UART1_RXD,
MX51_PAD_UART1_TXD__UART1_TXD,
NEW_PAD_CTRL(MX51_PAD_UART1_RTS__UART1_RTS, UART_PAD_CTRL),
NEW_PAD_CTRL(MX51_PAD_UART1_CTS__UART1_CTS, UART_PAD_CTRL),
};
imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
}
static void setup_iomux_fec(void)
{
static const iomux_v3_cfg_t fec_pads[] = {
NEW_PAD_CTRL(MX51_PAD_EIM_EB2__FEC_MDIO,
PAD_CTL_HYS |
PAD_CTL_PUS_22K_UP |
PAD_CTL_DSE_HIGH | PAD_CTL_SRE_FAST),
MX51_PAD_EIM_EB3__FEC_RDATA1,
NEW_PAD_CTRL(MX51_PAD_EIM_CS2__FEC_RDATA2, PAD_CTL_HYS),
MX51_PAD_EIM_CS3__FEC_RDATA3,
MX51_PAD_NANDF_CS2__FEC_TX_ER,
MX51_PAD_EIM_CS5__FEC_CRS,
MX51_PAD_EIM_CS4__FEC_RX_ER,
/* PAD used on TS4800 */
MX51_PAD_DI2_PIN2__FEC_MDC,
MX51_PAD_DISP2_DAT14__FEC_RDAT0,
MX51_PAD_DISP2_DAT10__FEC_COL,
MX51_PAD_DISP2_DAT11__FEC_RXCLK,
MX51_PAD_DISP2_DAT15__FEC_TDAT0,
MX51_PAD_DISP2_DAT6__FEC_TDAT1,
MX51_PAD_DISP2_DAT7__FEC_TDAT2,
MX51_PAD_DISP2_DAT8__FEC_TDAT3,
MX51_PAD_DISP2_DAT9__FEC_TX_EN,
MX51_PAD_DISP2_DAT13__FEC_TX_CLK,
MX51_PAD_DISP2_DAT12__FEC_RX_DV,
};
imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
}
#ifdef CONFIG_FSL_ESDHC
int board_mmc_getcd(struct mmc *mmc)
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
int ret;
imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX51_PAD_GPIO1_0__GPIO1_0,
NO_PAD_CTRL));
gpio_direction_input(IMX_GPIO_NR(1, 0));
imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX51_PAD_GPIO1_6__GPIO1_6,
NO_PAD_CTRL));
gpio_direction_input(IMX_GPIO_NR(1, 6));
if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
ret = !gpio_get_value(IMX_GPIO_NR(1, 0));
else
ret = !gpio_get_value(IMX_GPIO_NR(1, 6));
return ret;
}
int board_mmc_init(bd_t *bis)
{
static const iomux_v3_cfg_t sd1_pads[] = {
NEW_PAD_CTRL(MX51_PAD_SD1_CMD__SD1_CMD, PAD_CTL_DSE_MAX |
PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | PAD_CTL_SRE_FAST),
NEW_PAD_CTRL(MX51_PAD_SD1_CLK__SD1_CLK, PAD_CTL_DSE_MAX |
PAD_CTL_PUS_47K_UP | PAD_CTL_SRE_FAST),
NEW_PAD_CTRL(MX51_PAD_SD1_DATA0__SD1_DATA0, PAD_CTL_DSE_MAX |
PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | PAD_CTL_SRE_FAST),
NEW_PAD_CTRL(MX51_PAD_SD1_DATA1__SD1_DATA1, PAD_CTL_DSE_MAX |
PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | PAD_CTL_SRE_FAST),
NEW_PAD_CTRL(MX51_PAD_SD1_DATA2__SD1_DATA2, PAD_CTL_DSE_MAX |
PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | PAD_CTL_SRE_FAST),
NEW_PAD_CTRL(MX51_PAD_SD1_DATA3__SD1_DATA3, PAD_CTL_DSE_MAX |
PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN | PAD_CTL_SRE_FAST),
NEW_PAD_CTRL(MX51_PAD_GPIO1_0__SD1_CD, PAD_CTL_HYS),
NEW_PAD_CTRL(MX51_PAD_GPIO1_1__SD1_WP, PAD_CTL_HYS),
};
esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
imx_iomux_v3_setup_multiple_pads(sd1_pads, ARRAY_SIZE(sd1_pads));
return fsl_esdhc_initialize(bis, &esdhc_cfg[0]);
}
#endif
int board_early_init_f(void)
{
setup_iomux_uart();
setup_iomux_fec();
return 0;
}
int board_init(void)
{
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
return 0;
}
/*
* Read the MAC address from FEC's registers PALR PAUR.
* User is supposed to configure these registers when MAC address is known
* from another source (fuse), but on TS4800, MAC address is not fused and
* the bootrom configure these registers on startup.
*/
static int fec_get_mac_from_register(uint32_t base_addr)
{
unsigned char ethaddr[6];
u32 reg_mac[2];
int i;
reg_mac[0] = in_be32(base_addr + 0xE4);
reg_mac[1] = in_be32(base_addr + 0xE8);
for(i = 0; i < 6; i++)
ethaddr[i] = (reg_mac[i / 4] >> ((i % 4) * 8)) & 0xFF;
if (is_valid_ethaddr(ethaddr)) {
eth_env_set_enetaddr("ethaddr", ethaddr);
return 0;
}
return -1;
}
#define TS4800_GPIO_FEC_PHY_RES IMX_GPIO_NR(2, 14)
int board_eth_init(bd_t *bd)
{
int dev_id = -1;
int phy_id = 0xFF;
uint32_t addr = IMX_FEC_BASE;
uint32_t base_mii;
struct mii_dev *bus = NULL;
struct phy_device *phydev = NULL;
int ret;
/* reset FEC phy */
imx_iomux_v3_setup_pad(MX51_PAD_EIM_A20__GPIO2_14);
gpio_direction_output(TS4800_GPIO_FEC_PHY_RES, 0);
mdelay(1);
gpio_set_value(TS4800_GPIO_FEC_PHY_RES, 1);
mdelay(1);
base_mii = addr;
debug("eth_init: fec_probe(bd, %i, %i) @ %08x\n", dev_id, phy_id, addr);
bus = fec_get_miibus(base_mii, dev_id);
if (!bus)
return -ENOMEM;
phydev = phy_find_by_mask(bus, phy_id, PHY_INTERFACE_MODE_MII);
if (!phydev) {
free(bus);
return -ENOMEM;
}
if (fec_get_mac_from_register(addr))
printf("eth_init: failed to get MAC address\n");
ret = fec_probe(bd, dev_id, addr, bus, phydev);
if (ret) {
free(phydev);
free(bus);
}
return ret;
}
/*
* Do not overwrite the console
* Use always serial for U-Boot console
*/
int overwrite_console(void)
{
return 1;
}
int checkboard(void)
{
puts("Board: TS4800\n");
return 0;
}
void hw_watchdog_reset(void)
{
struct ts4800_wtd_regs *wtd = (struct ts4800_wtd_regs *) (TS4800_SYSCON_BASE + 0xE);
/* feed the watchdog for another 10s */
writew(0x2, &wtd->feed);
}
void hw_watchdog_init(void)
{
return;
}
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