diff options
Diffstat (limited to 'board/renesas/sh7757lcr/sh7757lcr.c')
| -rw-r--r-- | board/renesas/sh7757lcr/sh7757lcr.c | 454 |
1 files changed, 454 insertions, 0 deletions
diff --git a/board/renesas/sh7757lcr/sh7757lcr.c b/board/renesas/sh7757lcr/sh7757lcr.c new file mode 100644 index 0000000..a62be24 --- /dev/null +++ b/board/renesas/sh7757lcr/sh7757lcr.c @@ -0,0 +1,454 @@ +/* + * 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, ðer->mahr); + val = (mac[4] << 8) | mac[5]; + writel(val, ðer->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, ðer->mahr); + val = (mac[4] << 8) | mac[5]; + writel(val, ðer->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" +); |