diff options
Diffstat (limited to 'board/renesas/sh7752evb/sh7752evb.c')
| -rw-r--r-- | board/renesas/sh7752evb/sh7752evb.c | 330 |
1 files changed, 330 insertions, 0 deletions
diff --git a/board/renesas/sh7752evb/sh7752evb.c b/board/renesas/sh7752evb/sh7752evb.c new file mode 100644 index 0000000..e996593 --- /dev/null +++ b/board/renesas/sh7752evb/sh7752evb.c @@ -0,0 +1,330 @@ +/* + * Copyright (C) 2012 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 <asm/mmc.h> +#include <spi_flash.h> + +int checkboard(void) +{ + puts("BOARD: SH7752 evaluation board (R0P7752C00000RZ)\n"); + + return 0; +} + +static void init_gpio(void) +{ + struct gpio_regs *gpio = GPIO_BASE; + struct sermux_regs *sermux = SERMUX_BASE; + + /* GPIO */ + writew(0x0000, &gpio->pacr); /* GETHER */ + writew(0x0001, &gpio->pbcr); /* INTC */ + writew(0x0000, &gpio->pccr); /* PWMU, INTC */ + writew(0xeaff, &gpio->pecr); /* GPIO */ + writew(0x0000, &gpio->pfcr); /* WDT */ + writew(0x0000, &gpio->phcr); /* SPI1 */ + writew(0x0000, &gpio->picr); /* SDHI */ + writew(0x0003, &gpio->pkcr); /* SerMux */ + writew(0x0000, &gpio->plcr); /* SerMux */ + writew(0x0000, &gpio->pmcr); /* RIIC */ + writew(0x0000, &gpio->pncr); /* USB, SGPIO */ + writew(0x0000, &gpio->pocr); /* SGPIO */ + writew(0xd555, &gpio->pqcr); /* GPIO */ + writew(0x0000, &gpio->prcr); /* RIIC */ + writew(0x0000, &gpio->pscr); /* RIIC */ + writeb(0x00, &gpio->pudr); + writew(0x5555, &gpio->pucr); /* Debug LED */ + writew(0x0000, &gpio->pvcr); /* RSPI */ + writew(0x0000, &gpio->pwcr); /* EVC */ + writew(0x0000, &gpio->pxcr); /* LBSC */ + writew(0x0000, &gpio->pycr); /* LBSC */ + writew(0x0000, &gpio->pzcr); /* eMMC */ + writew(0xfe00, &gpio->psel0); + writew(0xff00, &gpio->psel3); + writew(0x771f, &gpio->psel4); + writew(0x00ff, &gpio->psel6); + writew(0xfc00, &gpio->psel7); + + writeb(0x10, &sermux->smr0); /* SMR0: SerMux mode 0 */ +} + +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 init_gether_mdio(void) +{ + struct gpio_regs *gpio = GPIO_BASE; + + writew(readw(&gpio->pgcr) | 0x0004, &gpio->pgcr); + writeb(readb(&gpio->pgdr) | 0x02, &gpio->pgdr); /* Use ET0-MDIO */ +} + +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) +{ + init_gpio(); + set_pmb_on_board_init(); + + init_usb_phy(); + init_gether_mdio(); + + 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)); + + return 0; +} + +int board_mmc_init(bd_t *bis) +{ + struct gpio_regs *gpio = GPIO_BASE; + + writew(readw(&gpio->pgcr) | 0x0040, &gpio->pgcr); + writeb(readb(&gpio->pgdr) & ~0x08, &gpio->pgdr); /* Reset */ + udelay(1); + writeb(readb(&gpio->pgdr) | 0x08, &gpio->pgdr); /* Release reset */ + udelay(200); + + return mmcif_mmc_init(); +} + +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 failed.\n", __func__); + return 1; + } + + ret = spi_flash_read(spi, SH7752EVB_ETHERNET_MAC_BASE, size, buf); + if (ret) { + printf("%s: spi_flash read failed.\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 * (SH7752EVB_ETHERNET_MAC_SIZE + 1)], + SH7752EVB_ETHERNET_MAC_SIZE); + mac_string[SH7752EVB_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 failed.\n", __func__); + return; + } + get_sh_eth_mac_raw(buf, 256); + + /* Gigabit Ethernet */ + for (i = 0; i < SH7752EVB_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_giga_eth_register(i, mac_string); + } + + free(buf); +} + +int board_late_init(void) +{ + init_ethernet_mac(); + + return 0; +} + +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 != 3) { + buf = malloc(256); + if (!buf) { + printf("%s: malloc failed.\n", __func__); + return 1; + } + + get_sh_eth_mac_raw(buf, 256); + + /* print current MAC address */ + for (i = 0; i < SH7752EVB_ETHERNET_NUM_CH; i++) { + get_sh_eth_mac(i, mac_string, buf); + printf("GETHERC ch%d = %s\n", i, mac_string); + } + free(buf); + return 0; + } + + /* new setting */ + memset(mac_string, 0xff, sizeof(mac_string)); + sprintf(mac_string, "%s\t%s", + argv[1], argv[2]); + + /* write MAC data to SPI rom */ + spi = spi_flash_probe(0, 0, 1000000, SPI_MODE_3); + if (!spi) { + printf("%s: spi_flash probe failed.\n", __func__); + return 1; + } + + ret = spi_flash_erase(spi, SH7752EVB_ETHERNET_MAC_BASE_SPI, + SH7752EVB_SPI_SECTOR_SIZE); + if (ret) { + printf("%s: spi_flash erase failed.\n", __func__); + return 1; + } + + ret = spi_flash_write(spi, SH7752EVB_ETHERNET_MAC_BASE_SPI, + sizeof(mac_string), mac_string); + if (ret) { + printf("%s: spi_flash write failed.\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, 3, 1, do_write_mac, + "write MAC address for GETHERC", + "[GETHERC ch0] [GETHERC ch1]\n" +); |