Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-12-21 02:33:07 +00:00
Code Issues Projects Releases Packages Wiki Activity
u-boot/board/technologic/ts4800/ts4800.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

262 lines
6.2 KiB
C
Raw Blame History

// 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 <init.h>
#include <log.h>
#include <net.h>
#include <asm/io.h>
#include <asm/gpio.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/iomux-mx51.h>
#include <env.h>
#include <linux/delay.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 <mmc.h>
#include <input.h>
#include <fsl_esdhc_imx.h>
#include <mc13892.h>
#include <malloc.h>
#include <netdev.h>
#include <phy.h>
#include "ts4800.h"
DECLARE_GLOBAL_DATA_PTR;
#ifdef CONFIG_FSL_ESDHC_IMX
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_IMX
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(struct bd_info *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(struct bd_info *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;
}
Reference in a new issue View git blame Copy permalink