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u-boot/board/renesas/sh7757lcr/sh7757lcr.c
Yoshihiro Shimoda 8e9c897b21 sh: add support for sh7757lcr board 
The R0P7757LC0030RL board has SH7757, 256MB DDR3-SDRAM, SPI ROM,
Ethernet, and more.

This patch supports the following functions:
 - 256MB DDR3-SDRAM
 - SPI ROM
 - Ethernet

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2011-02-02 16:38:41 +09:00

454 lines
11 KiB
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/*
* Copyright (C) 2011 Renesas Solutions Corp.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <malloc.h>
#include <asm/processor.h>
#include <asm/io.h>
#include <spi_flash.h>
int checkboard(void)
{
puts("BOARD: R0P7757LC0030RL board\n");
return 0;
}
static void init_gctrl(void)
{
struct gctrl_regs *gctrl = GCTRL_BASE;
unsigned long graofst;
graofst = (SH7757LCR_SDRAM_PHYS_TOP + SH7757LCR_GRA_OFFSET) >> 24;
writel(graofst | 0x20000f00, &gctrl->gracr3);
}
static int init_pcie_bridge_from_spi(void *buf, size_t size)
{
struct spi_flash *spi;
int ret;
unsigned long pcie_addr;
spi = spi_flash_probe(0, 0, 1000000, SPI_MODE_3);
if (!spi) {
printf("%s: spi_flash probe error.\n", __func__);
return 1;
}
if (is_sh7757_b0())
pcie_addr = SH7757LCR_PCIEBRG_ADDR_B0;
else
pcie_addr = SH7757LCR_PCIEBRG_ADDR;
ret = spi_flash_read(spi, pcie_addr, size, buf);
if (ret) {
printf("%s: spi_flash read error.\n", __func__);
spi_flash_free(spi);
return 1;
}
spi_flash_free(spi);
return 0;
}
static void init_pcie_bridge(void)
{
struct pciebrg_regs *pciebrg = PCIEBRG_BASE;
struct pcie_setup_regs *pcie_setup = PCIE_SETUP_BASE;
int i;
unsigned char *data;
unsigned short tmp;
unsigned long pcie_size;
if (!(readw(&pciebrg->ctrl_h8s) & 0x0001))
return;
if (is_sh7757_b0())
pcie_size = SH7757LCR_PCIEBRG_SIZE_B0;
else
pcie_size = SH7757LCR_PCIEBRG_SIZE;
data = malloc(pcie_size);
if (!data) {
printf("%s: malloc error.\n", __func__);
return;
}
if (init_pcie_bridge_from_spi(data, pcie_size)) {
free(data);
return;
}
if (data[0] == 0xff && data[1] == 0xff && data[2] == 0xff &&
data[3] == 0xff) {
free(data);
printf("%s: skipped initialization\n", __func__);
return;
}
writew(0xa501, &pciebrg->ctrl_h8s); /* reset */
writew(0x0000, &pciebrg->cp_ctrl);
writew(0x0000, &pciebrg->cp_addr);
for (i = 0; i < pcie_size; i += 2) {
tmp = (data[i] << 8) | data[i + 1];
writew(tmp, &pciebrg->cp_data);
}
writew(0xa500, &pciebrg->ctrl_h8s); /* start */
if (!is_sh7757_b0())
writel(0x00000001, &pcie_setup->pbictl3);
free(data);
}
static void init_usb_phy(void)
{
struct usb_common_regs *common0 = USB0_COMMON_BASE;
struct usb_common_regs *common1 = USB1_COMMON_BASE;
struct usb0_phy_regs *phy = USB0_PHY_BASE;
struct usb1_port_regs *port = USB1_PORT_BASE;
struct usb1_alignment_regs *align = USB1_ALIGNMENT_BASE;
writew(0x0100, &phy->reset); /* set reset */
/* port0 = USB0, port1 = USB1 */
writew(0x0002, &phy->portsel);
writel(0x0001, &port->port1sel); /* port1 = Host */
writew(0x0111, &phy->reset); /* clear reset */
writew(0x4000, &common0->suspmode);
writew(0x4000, &common1->suspmode);
#if defined(__LITTLE_ENDIAN)
writel(0x00000000, &align->ehcidatac);
writel(0x00000000, &align->ohcidatac);
#endif
}
static void set_mac_to_sh_eth_register(int channel, char *mac_string)
{
struct ether_mac_regs *ether;
unsigned char mac[6];
unsigned long val;
eth_parse_enetaddr(mac_string, mac);
if (!channel)
ether = ETHER0_MAC_BASE;
else
ether = ETHER1_MAC_BASE;
val = (mac[0] << 24) | (mac[1] << 16) | (mac[2] << 8) | mac[3];
writel(val, &ether->mahr);
val = (mac[4] << 8) | mac[5];
writel(val, &ether->malr);
}
static void set_mac_to_sh_giga_eth_register(int channel, char *mac_string)
{
struct ether_mac_regs *ether;
unsigned char mac[6];
unsigned long val;
eth_parse_enetaddr(mac_string, mac);
if (!channel)
ether = GETHER0_MAC_BASE;
else
ether = GETHER1_MAC_BASE;
val = (mac[0] << 24) | (mac[1] << 16) | (mac[2] << 8) | mac[3];
writel(val, &ether->mahr);
val = (mac[4] << 8) | mac[5];
writel(val, &ether->malr);
}
/*****************************************************************
* This PMB must be set on this timing. The lowlevel_init is run on
* Area 0(phys 0x00000000), so we have to map it.
*
* The new PMB table is following:
* ent virt phys v sz c wt
* 0 0xa0000000 0x40000000 1 128M 0 1
* 1 0xa8000000 0x48000000 1 128M 0 1
* 2 0xb0000000 0x50000000 1 128M 0 1
* 3 0xb8000000 0x58000000 1 128M 0 1
* 4 0x80000000 0x40000000 1 128M 1 1
* 5 0x88000000 0x48000000 1 128M 1 1
* 6 0x90000000 0x50000000 1 128M 1 1
* 7 0x98000000 0x58000000 1 128M 1 1
*/
static void set_pmb_on_board_init(void)
{
struct mmu_regs *mmu = MMU_BASE;
/* clear ITLB */
writel(0x00000004, &mmu->mmucr);
/* delete PMB for SPIBOOT */
writel(0, PMB_ADDR_BASE(0));
writel(0, PMB_DATA_BASE(0));
/* add PMB for SDRAM(0x40000000 - 0x47ffffff) */
/* ppn ub v s1 s0 c wt */
writel(mk_pmb_addr_val(0xa0), PMB_ADDR_BASE(0));
writel(mk_pmb_data_val(0x40, 1, 1, 1, 0, 0, 1), PMB_DATA_BASE(0));
writel(mk_pmb_addr_val(0xb0), PMB_ADDR_BASE(2));
writel(mk_pmb_data_val(0x50, 1, 1, 1, 0, 0, 1), PMB_DATA_BASE(2));
writel(mk_pmb_addr_val(0xb8), PMB_ADDR_BASE(3));
writel(mk_pmb_data_val(0x58, 1, 1, 1, 0, 0, 1), PMB_DATA_BASE(3));
writel(mk_pmb_addr_val(0x80), PMB_ADDR_BASE(4));
writel(mk_pmb_data_val(0x40, 0, 1, 1, 0, 1, 1), PMB_DATA_BASE(4));
writel(mk_pmb_addr_val(0x90), PMB_ADDR_BASE(6));
writel(mk_pmb_data_val(0x50, 0, 1, 1, 0, 1, 1), PMB_DATA_BASE(6));
writel(mk_pmb_addr_val(0x98), PMB_ADDR_BASE(7));
writel(mk_pmb_data_val(0x58, 0, 1, 1, 0, 1, 1), PMB_DATA_BASE(7));
}
int board_init(void)
{
struct gether_control_regs *gether = GETHER_CONTROL_BASE;
set_pmb_on_board_init();
/* enable RMII's MDIO (disable GRMII's MDIO) */
writel(0x00030000, &gether->gbecont);
init_gctrl();
init_usb_phy();
return 0;
}
int dram_init(void)
{
DECLARE_GLOBAL_DATA_PTR;
gd->bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
gd->bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
printf("DRAM: %dMB\n", CONFIG_SYS_SDRAM_SIZE / (1024 * 1024));
printf(" Physical address\n");
printf(" 0x%08x - 0x%08x : Accessible Space as ECC Area\n",
SH7757LCR_SDRAM_PHYS_TOP,
SH7757LCR_SDRAM_PHYS_TOP + SH7757LCR_SDRAM_SIZE - 1);
printf(" 0x%08x - 0x%08x : No Access Area\n",
SH7757LCR_SDRAM_PHYS_TOP + SH7757LCR_SDRAM_SIZE,
SH7757LCR_SDRAM_PHYS_TOP + SH7757LCR_SDRAM_SIZE * 2 - 1);
printf(" 0x%08x - 0x%08x : Non-ECC Area for DVC/AVC\n",
SH7757LCR_SDRAM_PHYS_TOP + SH7757LCR_SDRAM_ECC_SETTING * 2,
SH7757LCR_SDRAM_PHYS_TOP + SH7757LCR_SDRAM_ECC_SETTING * 2 +
SH7757LCR_SDRAM_DVC_SIZE - 1);
printf(" 0x%08x - 0x%08x : Non-ECC Area for G200eR2\n",
SH7757LCR_SDRAM_PHYS_TOP + SH7757LCR_GRA_OFFSET,
SH7757LCR_SDRAM_PHYS_TOP + SH7757LCR_GRA_OFFSET + 0x00ffffff);
return 0;
}
static int get_sh_eth_mac_raw(unsigned char *buf, int size)
{
struct spi_flash *spi;
int ret;
spi = spi_flash_probe(0, 0, 1000000, SPI_MODE_3);
if (spi == NULL) {
printf("%s: spi_flash probe error.\n", __func__);
return 1;
}
ret = spi_flash_read(spi, SH7757LCR_ETHERNET_MAC_BASE, size, buf);
if (ret) {
printf("%s: spi_flash read error.\n", __func__);
spi_flash_free(spi);
return 1;
}
spi_flash_free(spi);
return 0;
}
static int get_sh_eth_mac(int channel, char *mac_string, unsigned char *buf)
{
memcpy(mac_string, &buf[channel * (SH7757LCR_ETHERNET_MAC_SIZE + 1)],
SH7757LCR_ETHERNET_MAC_SIZE);
mac_string[SH7757LCR_ETHERNET_MAC_SIZE] = 0x00; /* terminate */
return 0;
}
static void init_ethernet_mac(void)
{
char mac_string[64];
char env_string[64];
int i;
unsigned char *buf;
buf = malloc(256);
if (!buf) {
printf("%s: malloc error.\n", __func__);
return;
}
get_sh_eth_mac_raw(buf, 256);
/* Fast Ethernet */
for (i = 0; i < SH7757LCR_ETHERNET_NUM_CH; i++) {
get_sh_eth_mac(i, mac_string, buf);
if (i == 0)
setenv("ethaddr", mac_string);
else {
sprintf(env_string, "eth%daddr", i);
setenv(env_string, mac_string);
}
set_mac_to_sh_eth_register(i, mac_string);
}
/* Gigabit Ethernet */
for (i = 0; i < SH7757LCR_GIGA_ETHERNET_NUM_CH; i++) {
get_sh_eth_mac(i + SH7757LCR_ETHERNET_NUM_CH, mac_string, buf);
sprintf(env_string, "eth%daddr", i + SH7757LCR_ETHERNET_NUM_CH);
setenv(env_string, mac_string);
set_mac_to_sh_giga_eth_register(i, mac_string);
}
free(buf);
}
static void init_pcie(void)
{
struct pcie_setup_regs *pcie_setup = PCIE_SETUP_BASE;
struct pcie_system_bus_regs *pcie_sysbus = PCIE_SYSTEM_BUS_BASE;
writel(0x00000ff2, &pcie_setup->ladmsk0);
writel(0x00000001, &pcie_setup->barmap);
writel(0xffcaa000, &pcie_setup->lad0);
writel(0x00030000, &pcie_sysbus->endictl0);
writel(0x00000003, &pcie_sysbus->endictl1);
writel(0x00000004, &pcie_setup->pbictl2);
}
static void finish_spiboot(void)
{
struct gctrl_regs *gctrl = GCTRL_BASE;
/*
* SH7757 B0 does not use LBSC.
* So if we set SPIBOOTCAN to 1, SH7757 can not access Area0.
* This setting is not cleared by manual reset, So we have to set it
* to 0.
*/
writel(0x00000000, &gctrl->spibootcan);
}
int board_late_init(void)
{
init_ethernet_mac();
init_pcie_bridge();
init_pcie();
finish_spiboot();
return 0;
}
int do_sh_g200(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
struct gctrl_regs *gctrl = GCTRL_BASE;
unsigned long graofst;
writel(0xfedcba98, &gctrl->wprotect);
graofst = (SH7757LCR_SDRAM_PHYS_TOP + SH7757LCR_GRA_OFFSET) >> 24;
writel(graofst | 0xa0000f00, &gctrl->gracr3);
return 0;
}
U_BOOT_CMD(
sh_g200, 1, 1, do_sh_g200,
"enable sh-g200",
"enable SH-G200 bus (disable PCIe-G200)"
);
int do_write_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int i, ret;
char mac_string[256];
struct spi_flash *spi;
unsigned char *buf;
if (argc != 5) {
buf = malloc(256);
if (!buf) {
printf("%s: malloc error.\n", __func__);
return 1;
}
get_sh_eth_mac_raw(buf, 256);
/* print current MAC address */
for (i = 0; i < 4; i++) {
get_sh_eth_mac(i, mac_string, buf);
if (i < 2)
printf(" ETHERC ch%d = %s\n", i, mac_string);
else
printf("GETHERC ch%d = %s\n", i-2, mac_string);
}
free(buf);
return 0;
}
/* new setting */
memset(mac_string, 0xff, sizeof(mac_string));
sprintf(mac_string, "%s\t%s\t%s\t%s",
argv[1], argv[2], argv[3], argv[4]);
/* write MAC data to SPI rom */
spi = spi_flash_probe(0, 0, 1000000, SPI_MODE_3);
if (!spi) {
printf("%s: spi_flash probe error.\n", __func__);
return 1;
}
ret = spi_flash_erase(spi, SH7757LCR_ETHERNET_MAC_BASE_SPI,
SH7757LCR_SPI_SECTOR_SIZE);
if (ret) {
printf("%s: spi_flash erase error.\n", __func__);
return 1;
}
ret = spi_flash_write(spi, SH7757LCR_ETHERNET_MAC_BASE_SPI,
sizeof(mac_string), mac_string);
if (ret) {
printf("%s: spi_flash write error.\n", __func__);
spi_flash_free(spi);
return 1;
}
spi_flash_free(spi);
puts("The writing of the MAC address to SPI ROM was completed.\n");
return 0;
}
U_BOOT_CMD(
write_mac, 5, 1, do_write_mac,
"write MAC address for ETHERC/GETHERC",
"[ETHERC ch0] [ETHERC ch1] [GETHERC ch0] [GETHERC ch1]\n"
);
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