u-boot/board/ifm/o2dnt2/o2dnt2.c
Simon Glass f1683aa73c board_f: Rename initdram() to dram_init()
This allows us to use the same DRAM init function on all archs. Add a
dummy function for arc, which does not use DRAM init here.

Signed-off-by: Simon Glass <sjg@chromium.org>
[trini: Dummy function on nios2]
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-04-13 09:40:57 -04:00

388 lines
9.4 KiB
C

/*
* Partially derived from board code for digsyMTC,
* (C) Copyright 2009
* Grzegorz Bernacki, Semihalf, gjb@semihalf.com
*
* (C) Copyright 2012
* DENX Software Engineering, Anatolij Gustschin <agust@denx.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <mpc5xxx.h>
#include <asm/processor.h>
#include <asm/io.h>
#include <libfdt.h>
#include <fdt_support.h>
#include <i2c.h>
#include <miiphy.h>
#include <net.h>
#include <pci.h>
DECLARE_GLOBAL_DATA_PTR;
#define SDRAM_MODE 0x00CD0000
#define SDRAM_CONTROL 0x504F0000
#define SDRAM_CONFIG1 0xD2322800
#define SDRAM_CONFIG2 0x8AD70000
enum ifm_sensor_type {
O2DNT = 0x00, /* !< O2DNT 32MB */
O2DNT2 = 0x01, /* !< O2DNT2 64MB */
O3DNT = 0x02, /* !< O3DNT 32MB */
O3DNT_MIN = 0x40, /* !< O3DNT Minerva 32MB */
UNKNOWN = 0xff, /* !< Unknow sensor */
};
static enum ifm_sensor_type gt_ifm_sensor_type;
#ifndef CONFIG_SYS_RAMBOOT
static void sdram_start(int hi_addr)
{
struct mpc5xxx_sdram *sdram = (struct mpc5xxx_sdram *)MPC5XXX_SDRAM;
long hi_addr_bit = hi_addr ? 0x01000000 : 0;
long control = SDRAM_CONTROL | hi_addr_bit;
/* unlock mode register */
out_be32(&sdram->ctrl, control | 0x80000000);
/* precharge all banks */
out_be32(&sdram->ctrl, control | 0x80000002);
/* auto refresh */
out_be32(&sdram->ctrl, control | 0x80000004);
/* set mode register */
out_be32(&sdram->mode, SDRAM_MODE);
/* normal operation */
out_be32(&sdram->ctrl, control);
}
#endif
/*
* ATTENTION: Although partially referenced dram_init does NOT make real use
* use of CONFIG_SYS_SDRAM_BASE. The code does not work if
* CONFIG_SYS_SDRAM_BASE is something else than 0x00000000.
*/
int dram_init(void)
{
struct mpc5xxx_mmap_ctl *mmap_ctl =
(struct mpc5xxx_mmap_ctl *)CONFIG_SYS_MBAR;
struct mpc5xxx_sdram *sdram = (struct mpc5xxx_sdram *)MPC5XXX_SDRAM;
ulong dramsize = 0;
ulong dramsize2 = 0;
uint svr, pvr;
if (gt_ifm_sensor_type == O2DNT2) {
/* activate SDRAM CS1 */
setbits_be32((void *)MPC5XXX_GPS_PORT_CONFIG, 0x80000000);
}
#ifndef CONFIG_SYS_RAMBOOT
ulong test1, test2;
/* setup SDRAM chip selects */
out_be32(&mmap_ctl->sdram0, 0x0000001E); /* 2 GB at 0x0 */
out_be32(&mmap_ctl->sdram1, 0x00000000); /* disabled */
/* setup config registers */
out_be32(&sdram->config1, SDRAM_CONFIG1);
out_be32(&sdram->config2, SDRAM_CONFIG2);
/* find RAM size using SDRAM CS0 only */
sdram_start(0);
test1 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x08000000);
sdram_start(1);
test2 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x08000000);
if (test1 > test2) {
sdram_start(0);
dramsize = test1;
} else {
dramsize = test2;
}
/* memory smaller than 1MB is impossible */
if (dramsize < (1 << 20))
dramsize = 0;
/* set SDRAM CS0 size according to the amount of RAM found */
if (dramsize > 0) {
out_be32(&mmap_ctl->sdram0,
(0x13 + __builtin_ffs(dramsize >> 20) - 1));
} else {
out_be32(&mmap_ctl->sdram0, 0); /* disabled */
}
/* let SDRAM CS1 start right after CS0 */
out_be32(&mmap_ctl->sdram1, dramsize + 0x0000001E); /* 2G */
/* find RAM size using SDRAM CS1 only */
if (!dramsize)
sdram_start(0);
test2 = test1 = get_ram_size((long *)(CONFIG_SYS_SDRAM_BASE + dramsize),
0x80000000);
if (!dramsize) {
sdram_start(1);
test2 = get_ram_size((long *)(CONFIG_SYS_SDRAM_BASE + dramsize),
0x80000000);
}
if (test1 > test2) {
sdram_start(0);
dramsize2 = test1;
} else {
dramsize2 = test2;
}
/* memory smaller than 1MB is impossible */
if (dramsize2 < (1 << 20))
dramsize2 = 0;
/* set SDRAM CS1 size according to the amount of RAM found */
if (dramsize2 > 0) {
out_be32(&mmap_ctl->sdram1, (dramsize |
(0x13 + __builtin_ffs(dramsize2 >> 20) - 1)));
} else {
out_be32(&mmap_ctl->sdram1, dramsize); /* disabled */
}
#else /* CONFIG_SYS_RAMBOOT */
/* retrieve size of memory connected to SDRAM CS0 */
dramsize = in_be32(&mmap_ctl->sdram0) & 0xFF;
if (dramsize >= 0x13)
dramsize = (1 << (dramsize - 0x13)) << 20;
else
dramsize = 0;
/* retrieve size of memory connected to SDRAM CS1 */
dramsize2 = in_be32(&mmap_ctl->sdram1) & 0xFF;
if (dramsize2 >= 0x13)
dramsize2 = (1 << (dramsize2 - 0x13)) << 20;
else
dramsize2 = 0;
#endif /* CONFIG_SYS_RAMBOOT */
/*
* On MPC5200B we need to set the special configuration delay in the
* DDR controller. Please refer to Freescale's AN3221 "MPC5200B SDRAM
* Initialization and Configuration", 3.3.1 SDelay--MBAR + 0x0190:
*
* "The SDelay should be written to a value of 0x00000004. It is
* required to account for changes caused by normal wafer processing
* parameters."
*/
svr = get_svr();
pvr = get_pvr();
if ((SVR_MJREV(svr) >= 2) &&
(PVR_MAJ(pvr) == 1) && (PVR_MIN(pvr) == 4))
out_be32(&sdram->sdelay, 0x04);
gd->ram_size = dramsize + dramsize2;
return 0;
}
#define GPT_GPIO_IN 0x4
int checkboard(void)
{
struct mpc5xxx_gpt *gpt = (struct mpc5xxx_gpt *)MPC5XXX_GPT;
unsigned char board_config = 0;
int i;
/* switch gpt0 - gpt7 to input */
for (i = 0; i < 7; i++)
out_be32(&gpt[i].emsr, GPT_GPIO_IN);
/* get configuration byte on timer-port */
for (i = 0; i < 7; i++)
board_config |= (in_be32(&gpt[i].sr) & 0x100) >> (8 - i);
puts("Board: ");
switch (board_config) {
case 0:
puts("O2DNT\n");
gt_ifm_sensor_type = O2DNT;
break;
case 1:
puts("O3DNT\n");
gt_ifm_sensor_type = O3DNT;
break;
case 2:
puts("O2DNT2\n");
gt_ifm_sensor_type = O2DNT2;
break;
case 64:
puts("O3DNT Minerva\n");
gt_ifm_sensor_type = O3DNT_MIN;
break;
default:
puts("Unknown\n");
gt_ifm_sensor_type = UNKNOWN;
break;
}
return 0;
}
int board_early_init_r(void)
{
struct mpc5xxx_lpb *lpb_regs = (struct mpc5xxx_lpb *)MPC5XXX_LPB;
/*
* Now, when we are in RAM, enable flash write access for detection
* process. Note that CS_BOOT cannot be cleared when executing in flash.
*/
clrbits_be32(&lpb_regs->cs0_cfg, 1); /* clear RO */
/* disable CS_BOOT */
clrbits_be32((void *)MPC5XXX_ADDECR, (1 << 25));
/* enable CS0 */
setbits_be32((void *)MPC5XXX_ADDECR, (1 << 16));
return 0;
}
#define MIIM_LXT971_LED_CFG_REG 0x14
#define LXT971_LED_CFG_LINK_STATUS 0x4000
#define LXT971_LED_CFG_RX_TX_ACTIVITY 0x0700
#define LXT971_LED_CFG_LINK_ACTIVITY 0x00D0
#define LXT971_LED_CFG_PULSE_STRETCH 0x0002
/*
* Additional PHY intialization after reset in mpc5xxx_fec_init_phy()
*/
void reset_phy(void)
{
/*
* Set LED configuration bits.
* It can't be done in misc_init_r() since FEC is not
* initialized at this time. Therefore we do it here.
*/
miiphy_write("FEC", CONFIG_PHY_ADDR, MIIM_LXT971_LED_CFG_REG,
LXT971_LED_CFG_LINK_STATUS |
LXT971_LED_CFG_RX_TX_ACTIVITY |
LXT971_LED_CFG_LINK_ACTIVITY |
LXT971_LED_CFG_PULSE_STRETCH);
}
#if defined(CONFIG_POST)
/*
* Reads GPIO pin PSC6_3. A keypress is reported, if PSC6_3 is low. If PSC6_3
* is left open, no keypress is detected.
*/
int post_hotkeys_pressed(void)
{
struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *) MPC5XXX_GPIO;
/*
* Configure PSC6_1 and PSC6_3 as GPIO. PSC6 then couldn't be used in
* CODEC or UART mode. Consumer IrDA should still be possible.
*/
clrbits_be32(&gpio->port_config, 0x07000000);
setbits_be32(&gpio->port_config, 0x03000000);
/* Enable GPIO for GPIO_IRDA_1 (IR_USB_CLK pin) = PSC6_3 */
setbits_be32(&gpio->simple_gpioe, 0x20000000);
/* Configure GPIO_IRDA_1 as input */
clrbits_be32(&gpio->simple_ddr, 0x20000000);
return (in_be32(&gpio->simple_ival) & 0x20000000) ? 0 : 1;
}
#endif
#ifdef CONFIG_PCI
static struct pci_controller hose;
void pci_init_board(void)
{
pci_mpc5xxx_init(&hose);
}
#endif
#ifdef CONFIG_OF_BOARD_SETUP
#if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
static void ft_adapt_flash_base(void *blob)
{
flash_info_t *dev = &flash_info[0];
int off;
struct fdt_property *prop;
int len;
u32 *reg, *reg2;
off = fdt_node_offset_by_compatible(blob, -1, "fsl,mpc5200b-lpb");
if (off < 0) {
printf("Could not find fsl,mpc5200b-lpb node.\n");
return;
}
/* found compatible property */
prop = fdt_get_property_w(blob, off, "ranges", &len);
if (prop) {
reg = reg2 = (u32 *)&prop->data[0];
reg[2] = dev->start[0];
reg[3] = dev->size;
fdt_setprop(blob, off, "ranges", reg2, len);
} else
printf("Could not find ranges\n");
}
extern ulong flash_get_size(phys_addr_t base, int banknum);
/* Update the flash baseaddr settings */
int update_flash_size(int flash_size)
{
struct mpc5xxx_mmap_ctl *mm =
(struct mpc5xxx_mmap_ctl *) CONFIG_SYS_MBAR;
flash_info_t *dev;
int i;
int size = 0;
unsigned long base = 0x0;
u32 *cs_reg = (u32 *)&mm->cs0_start;
for (i = 0; i < 2; i++) {
dev = &flash_info[i];
if (dev->size) {
/* calculate new base addr for this chipselect */
base -= dev->size;
out_be32(cs_reg, START_REG(base));
cs_reg++;
out_be32(cs_reg, STOP_REG(base, dev->size));
cs_reg++;
/* recalculate the sectoraddr in the cfi driver */
size += flash_get_size(base, i);
}
}
flash_protect_default();
gd->bd->bi_flashstart = base;
return 0;
}
#endif /* defined(CONFIG_SYS_UPDATE_FLASH_SIZE) */
int ft_board_setup(void *blob, bd_t *bd)
{
int phy_addr = CONFIG_PHY_ADDR;
char eth_path[] = "/soc5200@f0000000/mdio@3000/ethernet-phy@0";
ft_cpu_setup(blob, bd);
#if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
#ifdef CONFIG_FDT_FIXUP_NOR_FLASH_SIZE
/* Update reg property in all nor flash nodes too */
fdt_fixup_nor_flash_size(blob);
#endif
ft_adapt_flash_base(blob);
#endif
/* fix up the phy address */
do_fixup_by_path(blob, eth_path, "reg", &phy_addr, sizeof(int), 0);
return 0;
}
#endif /* CONFIG_OF_BOARD_SETUP */