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u-boot/board/socrates/socrates.c
Simon Glass e895a4b06f fdt: Allow ft_board_setup() to report failure 
This function can fail if the device tree runs out of space. Rather than
silently booting with an incomplete device tree, allow the failure to be
detected.

Unfortunately this involves changing a lot of places in the code. I have
not changed behvaiour to return an error where one is not currently
returned, to avoid unexpected breakage.

Eventually it would be nice to allow boards to register functions to be
called to update the device tree. This would avoid all the many functions
to do this. However it's not clear yet if this should be done using driver
model or with a linker list. This work is left for later.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
2014-11-21 04:43:15 +01:00

435 lines
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/*
* (C) Copyright 2008
* Sergei Poselenov, Emcraft Systems, sposelenov@emcraft.com.
*
* Copyright 2004 Freescale Semiconductor.
* (C) Copyright 2002,2003, Motorola Inc.
* Xianghua Xiao, (X.Xiao@motorola.com)
*
* (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <pci.h>
#include <asm/processor.h>
#include <asm/immap_85xx.h>
#include <ioports.h>
#include <flash.h>
#include <libfdt.h>
#include <fdt_support.h>
#include <asm/io.h>
#include <i2c.h>
#include <mb862xx.h>
#include <video_fb.h>
#include "upm_table.h"
DECLARE_GLOBAL_DATA_PTR;
extern flash_info_t flash_info[]; /* FLASH chips info */
extern GraphicDevice mb862xx;
void local_bus_init (void);
ulong flash_get_size (ulong base, int banknum);
int checkboard (void)
{
volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
char buf[64];
int f;
int i = getenv_f("serial#", buf, sizeof(buf));
#ifdef CONFIG_PCI
char *src;
#endif
puts("Board: Socrates");
if (i > 0) {
puts(", serial# ");
puts(buf);
}
putc('\n');
#ifdef CONFIG_PCI
/* Check the PCI_clk sel bit */
if (in_be32(&gur->porpllsr) & (1<<15)) {
src = "SYSCLK";
f = CONFIG_SYS_CLK_FREQ;
} else {
src = "PCI_CLK";
f = CONFIG_PCI_CLK_FREQ;
}
printf ("PCI1: 32 bit, %d MHz (%s)\n", f/1000000, src);
#else
printf ("PCI1: disabled\n");
#endif
/*
* Initialize local bus.
*/
local_bus_init ();
return 0;
}
int misc_init_r (void)
{
/*
* Adjust flash start and offset to detected values
*/
gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
gd->bd->bi_flashoffset = 0;
/*
* Check if boot FLASH isn't max size
*/
if (gd->bd->bi_flashsize < (0 - CONFIG_SYS_FLASH0)) {
set_lbc_or(0, gd->bd->bi_flashstart |
(CONFIG_SYS_OR0_PRELIM & 0x00007fff));
set_lbc_br(0, gd->bd->bi_flashstart |
(CONFIG_SYS_BR0_PRELIM & 0x00007fff));
/*
* Re-check to get correct base address
*/
flash_get_size(gd->bd->bi_flashstart, CONFIG_SYS_MAX_FLASH_BANKS - 1);
}
/*
* Check if only one FLASH bank is available
*/
if (gd->bd->bi_flashsize != CONFIG_SYS_MAX_FLASH_BANKS * (0 - CONFIG_SYS_FLASH0)) {
set_lbc_or(1, 0);
set_lbc_br(1, 0);
/*
* Re-do flash protection upon new addresses
*/
flash_protect (FLAG_PROTECT_CLEAR,
gd->bd->bi_flashstart, 0xffffffff,
&flash_info[CONFIG_SYS_MAX_FLASH_BANKS - 1]);
/* Monitor protection ON by default */
flash_protect (FLAG_PROTECT_SET,
CONFIG_SYS_MONITOR_BASE, CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1,
&flash_info[CONFIG_SYS_MAX_FLASH_BANKS - 1]);
/* Environment protection ON by default */
flash_protect (FLAG_PROTECT_SET,
CONFIG_ENV_ADDR,
CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1,
&flash_info[CONFIG_SYS_MAX_FLASH_BANKS - 1]);
/* Redundant environment protection ON by default */
flash_protect (FLAG_PROTECT_SET,
CONFIG_ENV_ADDR_REDUND,
CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
&flash_info[CONFIG_SYS_MAX_FLASH_BANKS - 1]);
}
return 0;
}
/*
* Initialize Local Bus
*/
void local_bus_init (void)
{
volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
volatile ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR);
sys_info_t sysinfo;
uint clkdiv;
uint lbc_mhz;
uint lcrr = CONFIG_SYS_LBC_LCRR;
get_sys_info (&sysinfo);
clkdiv = lbc->lcrr & LCRR_CLKDIV;
lbc_mhz = sysinfo.freq_systembus / 1000000 / clkdiv;
/* Disable PLL bypass for Local Bus Clock >= 66 MHz */
if (lbc_mhz >= 66)
lcrr &= ~LCRR_DBYP; /* DLL Enabled */
else
lcrr |= LCRR_DBYP; /* DLL Bypass */
out_be32 (&lbc->lcrr, lcrr);
asm ("sync;isync;msync");
out_be32 (&lbc->ltesr, 0xffffffff); /* Clear LBC error interrupts */
out_be32 (&lbc->lteir, 0xffffffff); /* Enable LBC error interrupts */
out_be32 (&ecm->eedr, 0xffffffff); /* Clear ecm errors */
out_be32 (&ecm->eeer, 0xffffffff); /* Enable ecm errors */
/* Init UPMA for FPGA access */
out_be32 (&lbc->mamr, 0x44440); /* Use a customer-supplied value */
upmconfig (UPMA, (uint *)UPMTableA, sizeof(UPMTableA)/sizeof(int));
/* Init UPMB for Lime controller access */
out_be32 (&lbc->mbmr, 0x444440); /* Use a customer-supplied value */
upmconfig (UPMB, (uint *)UPMTableB, sizeof(UPMTableB)/sizeof(int));
}
#if defined(CONFIG_PCI)
/*
* Initialize PCI Devices, report devices found.
*/
#ifndef CONFIG_PCI_PNP
static struct pci_config_table pci_mpc85xxads_config_table[] = {
{PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
PCI_IDSEL_NUMBER, PCI_ANY_ID,
pci_cfgfunc_config_device, {PCI_ENET0_IOADDR,
PCI_ENET0_MEMADDR,
PCI_COMMAND_MEMORY |
PCI_COMMAND_MASTER}},
{}
};
#endif
static struct pci_controller hose = {
#ifndef CONFIG_PCI_PNP
config_table:pci_mpc85xxads_config_table,
#endif
};
#endif /* CONFIG_PCI */
void pci_init_board (void)
{
#ifdef CONFIG_PCI
pci_mpc85xx_init (&hose);
#endif /* CONFIG_PCI */
}
#ifdef CONFIG_BOARD_EARLY_INIT_R
int board_early_init_r (void)
{
volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
/* set and reset the GPIO pin 2 which will reset the W83782G chip */
out_8((unsigned char*)&gur->gpoutdr, 0x3F );
out_be32((unsigned int*)&gur->gpiocr, 0x200 ); /* enable GPOut */
udelay(200);
out_8( (unsigned char*)&gur->gpoutdr, 0x1F );
return (0);
}
#endif /* CONFIG_BOARD_EARLY_INIT_R */
#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
int ft_board_setup(void *blob, bd_t *bd)
{
u32 val[12];
int rc, i = 0;
ft_cpu_setup(blob, bd);
/* Fixup NOR FLASH mapping */
val[i++] = 0; /* chip select number */
val[i++] = 0; /* always 0 */
val[i++] = gd->bd->bi_flashstart;
val[i++] = gd->bd->bi_flashsize;
if (mb862xx.frameAdrs == CONFIG_SYS_LIME_BASE) {
/* Fixup LIME mapping */
val[i++] = 2; /* chip select number */
val[i++] = 0; /* always 0 */
val[i++] = CONFIG_SYS_LIME_BASE;
val[i++] = CONFIG_SYS_LIME_SIZE;
}
/* Fixup FPGA mapping */
val[i++] = 3; /* chip select number */
val[i++] = 0; /* always 0 */
val[i++] = CONFIG_SYS_FPGA_BASE;
val[i++] = CONFIG_SYS_FPGA_SIZE;
rc = fdt_find_and_setprop(blob, "/localbus", "ranges",
val, i * sizeof(u32), 1);
if (rc)
printf("Unable to update localbus ranges, err=%s\n",
fdt_strerror(rc));
return 0;
}
#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */
#define DEFAULT_BRIGHTNESS 25
#define BACKLIGHT_ENABLE (1 << 31)
static const gdc_regs init_regs [] =
{
{0x0100, 0x00010f00},
{0x0020, 0x801901df},
{0x0024, 0x00000000},
{0x0028, 0x00000000},
{0x002c, 0x00000000},
{0x0110, 0x00000000},
{0x0114, 0x00000000},
{0x0118, 0x01df0320},
{0x0004, 0x041f0000},
{0x0008, 0x031f031f},
{0x000c, 0x017f0349},
{0x0010, 0x020c0000},
{0x0014, 0x01df01e9},
{0x0018, 0x00000000},
{0x001c, 0x01e00320},
{0x0100, 0x80010f00},
{0x0, 0x0}
};
const gdc_regs *board_get_regs (void)
{
return init_regs;
}
int lime_probe(void)
{
uint cfg_br2;
uint cfg_or2;
int type;
cfg_br2 = get_lbc_br(2);
cfg_or2 = get_lbc_or(2);
/* Configure GPCM for CS2 */
set_lbc_br(2, 0);
set_lbc_or(2, 0xfc000410);
set_lbc_br(2, (CONFIG_SYS_LIME_BASE) | 0x00001901);
/* Get controller type */
type = mb862xx_probe(CONFIG_SYS_LIME_BASE);
/* Restore previous CS2 configuration */
set_lbc_br(2, 0);
set_lbc_or(2, cfg_or2);
set_lbc_br(2, cfg_br2);
return (type == MB862XX_TYPE_LIME) ? 1 : 0;
}
/* Returns Lime base address */
unsigned int board_video_init (void)
{
if (!lime_probe())
return 0;
mb862xx.winSizeX = 800;
mb862xx.winSizeY = 480;
mb862xx.gdfIndex = GDF_15BIT_555RGB;
mb862xx.gdfBytesPP = 2;
return CONFIG_SYS_LIME_BASE;
}
#define W83782D_REG_CFG 0x40
#define W83782D_REG_BANK_SEL 0x4e
#define W83782D_REG_ADCCLK 0x4b
#define W83782D_REG_BEEP_CTRL 0x4d
#define W83782D_REG_BEEP_CTRL2 0x57
#define W83782D_REG_PWMOUT1 0x5b
#define W83782D_REG_VBAT 0x5d
static int w83782d_hwmon_init(void)
{
u8 buf;
if (i2c_read(CONFIG_SYS_I2C_W83782G_ADDR, W83782D_REG_CFG, 1, &buf, 1))
return -1;
i2c_reg_write(CONFIG_SYS_I2C_W83782G_ADDR, W83782D_REG_CFG, 0x80);
i2c_reg_write(CONFIG_SYS_I2C_W83782G_ADDR, W83782D_REG_BANK_SEL, 0);
i2c_reg_write(CONFIG_SYS_I2C_W83782G_ADDR, W83782D_REG_ADCCLK, 0x40);
buf = i2c_reg_read(CONFIG_SYS_I2C_W83782G_ADDR, W83782D_REG_BEEP_CTRL);
i2c_reg_write(CONFIG_SYS_I2C_W83782G_ADDR, W83782D_REG_BEEP_CTRL,
buf | 0x80);
i2c_reg_write(CONFIG_SYS_I2C_W83782G_ADDR, W83782D_REG_BEEP_CTRL2, 0);
i2c_reg_write(CONFIG_SYS_I2C_W83782G_ADDR, W83782D_REG_PWMOUT1, 0x47);
i2c_reg_write(CONFIG_SYS_I2C_W83782G_ADDR, W83782D_REG_VBAT, 0x01);
buf = i2c_reg_read(CONFIG_SYS_I2C_W83782G_ADDR, W83782D_REG_CFG);
i2c_reg_write(CONFIG_SYS_I2C_W83782G_ADDR, W83782D_REG_CFG,
(buf & 0xf4) | 0x01);
return 0;
}
static void board_backlight_brightness(int br)
{
u32 reg;
u8 buf;
u8 old_buf;
/* Select bank 0 */
if (i2c_read(CONFIG_SYS_I2C_W83782G_ADDR, 0x4e, 1, &old_buf, 1))
goto err;
else
buf = old_buf & 0xf8;
if (i2c_write(CONFIG_SYS_I2C_W83782G_ADDR, 0x4e, 1, &buf, 1))
goto err;
if (br > 0) {
/* PWMOUT1 duty cycle ctrl */
buf = 255 / (100 / br);
if (i2c_write(CONFIG_SYS_I2C_W83782G_ADDR, 0x5b, 1, &buf, 1))
goto err;
/* LEDs on */
reg = in_be32((void *)(CONFIG_SYS_FPGA_BASE + 0x0c));
if (!(reg & BACKLIGHT_ENABLE));
out_be32((void *)(CONFIG_SYS_FPGA_BASE + 0x0c),
reg | BACKLIGHT_ENABLE);
} else {
buf = 0;
if (i2c_write(CONFIG_SYS_I2C_W83782G_ADDR, 0x5b, 1, &buf, 1))
goto err;
/* LEDs off */
reg = in_be32((void *)(CONFIG_SYS_FPGA_BASE + 0x0c));
reg &= ~BACKLIGHT_ENABLE;
out_be32((void *)(CONFIG_SYS_FPGA_BASE + 0x0c), reg);
}
/* Restore previous bank setting */
if (i2c_write(CONFIG_SYS_I2C_W83782G_ADDR, 0x4e, 1, &old_buf, 1))
goto err;
return;
err:
printf("W83782G I2C access failed\n");
}
void board_backlight_switch (int flag)
{
char * param;
int rc;
if (w83782d_hwmon_init())
printf ("hwmon IC init failed\n");
if (flag) {
param = getenv("brightness");
rc = param ? simple_strtol(param, NULL, 10) : -1;
if (rc < 0)
rc = DEFAULT_BRIGHTNESS;
} else {
rc = 0;
}
board_backlight_brightness(rc);
}
#if defined(CONFIG_CONSOLE_EXTRA_INFO)
/*
* Return text to be printed besides the logo.
*/
void video_get_info_str (int line_number, char *info)
{
if (line_number == 1) {
strcpy (info, " Board: Socrates");
} else {
info [0] = '\0';
}
}
#endif
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