/* * (C) Copyright 2008 * Stefan Roese, DENX Software Engineering, sr@denx.de. * * 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 <asm/ppc440.h> #include <libfdt.h> #include <fdt_support.h> #include <i2c.h> #include <asm/processor.h> #include <asm/io.h> #include <asm/mmu.h> #include <asm/4xx_pcie.h> #include <asm/ppc4xx-gpio.h> #include <asm/errno.h> extern flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */ DECLARE_GLOBAL_DATA_PTR; struct board_bcsr { u8 board_id; u8 cpld_rev; u8 led_user; u8 board_status; u8 reset_ctrl; u8 flash_ctrl; u8 eth_ctrl; u8 usb_ctrl; u8 irq_ctrl; }; #define BOARD_CANYONLANDS_PCIE 1 #define BOARD_CANYONLANDS_SATA 2 #define BOARD_GLACIER 3 #define BOARD_ARCHES 4 /* * Override the default functions in arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c with * board specific values. */ #if defined(CONFIG_ARCHES) u32 ddr_wrdtr(u32 default_val) { return (SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_0_DEG | 0x823); } #else u32 ddr_wrdtr(u32 default_val) { return (SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_180_DEG_ADV | 0x823); } u32 ddr_clktr(u32 default_val) { return (SDRAM_CLKTR_CLKP_90_DEG_ADV); } #endif #if defined(CONFIG_ARCHES) /* * FPGA read/write helper macros */ static inline int board_fpga_read(int offset) { int data; data = in_8((void *)(CONFIG_SYS_FPGA_BASE + offset)); return data; } static inline void board_fpga_write(int offset, int data) { out_8((void *)(CONFIG_SYS_FPGA_BASE + offset), data); } /* * CPLD read/write helper macros */ static inline int board_cpld_read(int offset) { int data; out_8((void *)(CONFIG_SYS_CPLD_ADDR), offset); data = in_8((void *)(CONFIG_SYS_CPLD_DATA)); return data; } static inline void board_cpld_write(int offset, int data) { out_8((void *)(CONFIG_SYS_CPLD_ADDR), offset); out_8((void *)(CONFIG_SYS_CPLD_DATA), data); } #else static int pvr_460ex(void) { u32 pvr = get_pvr(); if ((pvr == PVR_460EX_RA) || (pvr == PVR_460EX_SE_RA) || (pvr == PVR_460EX_RB)) return 1; return 0; } #endif /* defined(CONFIG_ARCHES) */ int board_early_init_f(void) { #if !defined(CONFIG_ARCHES) u32 sdr0_cust0; struct board_bcsr *bcsr_data = (struct board_bcsr *)CONFIG_SYS_BCSR_BASE; #endif /* * Setup the interrupt controller polarities, triggers, etc. */ mtdcr(UIC0SR, 0xffffffff); /* clear all */ mtdcr(UIC0ER, 0x00000000); /* disable all */ mtdcr(UIC0CR, 0x00000005); /* ATI & UIC1 crit are critical */ mtdcr(UIC0PR, 0xffffffff); /* per ref-board manual */ mtdcr(UIC0TR, 0x00000000); /* per ref-board manual */ mtdcr(UIC0VR, 0x00000000); /* int31 highest, base=0x000 */ mtdcr(UIC0SR, 0xffffffff); /* clear all */ mtdcr(UIC1SR, 0xffffffff); /* clear all */ mtdcr(UIC1ER, 0x00000000); /* disable all */ mtdcr(UIC1CR, 0x00000000); /* all non-critical */ mtdcr(UIC1PR, 0xffffffff); /* per ref-board manual */ mtdcr(UIC1TR, 0x00000000); /* per ref-board manual */ mtdcr(UIC1VR, 0x00000000); /* int31 highest, base=0x000 */ mtdcr(UIC1SR, 0xffffffff); /* clear all */ mtdcr(UIC2SR, 0xffffffff); /* clear all */ mtdcr(UIC2ER, 0x00000000); /* disable all */ mtdcr(UIC2CR, 0x00000000); /* all non-critical */ mtdcr(UIC2PR, 0xffffffff); /* per ref-board manual */ mtdcr(UIC2TR, 0x00000000); /* per ref-board manual */ mtdcr(UIC2VR, 0x00000000); /* int31 highest, base=0x000 */ mtdcr(UIC2SR, 0xffffffff); /* clear all */ mtdcr(UIC3SR, 0xffffffff); /* clear all */ mtdcr(UIC3ER, 0x00000000); /* disable all */ mtdcr(UIC3CR, 0x00000000); /* all non-critical */ mtdcr(UIC3PR, 0xffffffff); /* per ref-board manual */ mtdcr(UIC3TR, 0x00000000); /* per ref-board manual */ mtdcr(UIC3VR, 0x00000000); /* int31 highest, base=0x000 */ mtdcr(UIC3SR, 0xffffffff); /* clear all */ #if !defined(CONFIG_ARCHES) /* SDR Setting - enable NDFC */ mfsdr(SDR0_CUST0, sdr0_cust0); sdr0_cust0 = SDR0_CUST0_MUX_NDFC_SEL | SDR0_CUST0_NDFC_ENABLE | SDR0_CUST0_NDFC_BW_8_BIT | SDR0_CUST0_NDFC_ARE_MASK | SDR0_CUST0_NDFC_BAC_ENCODE(3) | (0x80000000 >> (28 + CONFIG_SYS_NAND_CS)); mtsdr(SDR0_CUST0, sdr0_cust0); #endif /* * Configure PFC (Pin Function Control) registers * UART0: 4 pins */ mtsdr(SDR0_PFC1, 0x00040000); /* Enable PCI host functionality in SDR0_PCI0 */ mtsdr(SDR0_PCI0, 0xe0000000); #if !defined(CONFIG_ARCHES) /* Enable ethernet and take out of reset */ out_8(&bcsr_data->eth_ctrl, 0) ; /* Remove NOR-FLASH, NAND-FLASH & EEPROM hardware write protection */ out_8(&bcsr_data->flash_ctrl, 0) ; mtsdr(SDR0_SRST1, 0); /* Pull AHB out of reset default=1 */ /* Setup PLB4-AHB bridge based on the system address map */ mtdcr(AHB_TOP, 0x8000004B); mtdcr(AHB_BOT, 0x8000004B); #endif return 0; } #if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_BOARD_INIT) int usb_board_init(void) { struct board_bcsr *bcsr_data = (struct board_bcsr *)CONFIG_SYS_BCSR_BASE; u8 val; /* Enable USB host & USB-OTG */ val = in_8(&bcsr_data->usb_ctrl); val &= ~(BCSR_USBCTRL_OTG_RST | BCSR_USBCTRL_HOST_RST); out_8(&bcsr_data->usb_ctrl, val); /* * Configure USB-STP pins as alternate and not GPIO * It seems to be neccessary to configure the STP pins as GPIO * input at powerup (perhaps while USB reset is asserted). So * we configure those pins to their "real" function now. */ gpio_config(16, GPIO_OUT, GPIO_ALT1, GPIO_OUT_1); gpio_config(19, GPIO_OUT, GPIO_ALT1, GPIO_OUT_1); return 0; } int usb_board_stop(void) { struct board_bcsr *bcsr_data = (struct board_bcsr *)CONFIG_SYS_BCSR_BASE; u8 val; /* Disable USB host & USB-OTG */ val = in_8(&bcsr_data->usb_ctrl); val |= (BCSR_USBCTRL_OTG_RST | BCSR_USBCTRL_HOST_RST); out_8(&bcsr_data->usb_ctrl, val); /* Reconfigure USB-STP pins as input */ gpio_config(16, GPIO_IN , GPIO_SEL, GPIO_OUT_0); gpio_config(19, GPIO_IN , GPIO_SEL, GPIO_OUT_0); return 0; } int usb_board_init_fail(void) { return usb_board_stop(); } #endif /* CONFIG_USB_OHCI_NEW && CONFIG_SYS_USB_OHCI_BOARD_INIT */ #if !defined(CONFIG_ARCHES) static void canyonlands_sata_init(int board_type) { u32 reg; if (board_type == BOARD_CANYONLANDS_SATA) { /* Put SATA in reset */ SDR_WRITE(SDR0_SRST1, 0x00020001); /* Set the phy for SATA, not PCI-E port 0 */ reg = SDR_READ(PESDR0_PHY_CTL_RST); SDR_WRITE(PESDR0_PHY_CTL_RST, (reg & 0xeffffffc) | 0x00000001); reg = SDR_READ(PESDR0_L0CLK); SDR_WRITE(PESDR0_L0CLK, (reg & 0xfffffff8) | 0x00000007); SDR_WRITE(PESDR0_L0CDRCTL, 0x00003111); SDR_WRITE(PESDR0_L0DRV, 0x00000104); /* Bring SATA out of reset */ SDR_WRITE(SDR0_SRST1, 0x00000000); } } #endif /* !defined(CONFIG_ARCHES) */ int get_cpu_num(void) { int cpu = NA_OR_UNKNOWN_CPU; #if defined(CONFIG_ARCHES) int cpu_num; cpu_num = board_fpga_read(0x3); /* sanity check; assume cpu numbering starts and increments from 0 */ if ((cpu_num >= 0) && (cpu_num < CONFIG_BD_NUM_CPUS)) cpu = cpu_num; #endif return cpu; } #if !defined(CONFIG_ARCHES) int checkboard(void) { struct board_bcsr *bcsr_data = (struct board_bcsr *)CONFIG_SYS_BCSR_BASE; char buf[64]; int i = getenv_f("serial#", buf, sizeof(buf)); if (pvr_460ex()) { printf("Board: Canyonlands - AMCC PPC460EX Evaluation Board"); if (in_8(&bcsr_data->board_status) & BCSR_SELECT_PCIE) gd->board_type = BOARD_CANYONLANDS_PCIE; else gd->board_type = BOARD_CANYONLANDS_SATA; } else { printf("Board: Glacier - AMCC PPC460GT Evaluation Board"); gd->board_type = BOARD_GLACIER; } switch (gd->board_type) { case BOARD_CANYONLANDS_PCIE: case BOARD_GLACIER: puts(", 2*PCIe"); break; case BOARD_CANYONLANDS_SATA: puts(", 1*PCIe/1*SATA"); break; } printf(", Rev. %X", in_8(&bcsr_data->cpld_rev)); if (i > 0) { puts(", serial# "); puts(buf); } putc('\n'); canyonlands_sata_init(gd->board_type); return (0); } #else /* defined(CONFIG_ARCHES) */ int checkboard(void) { char *s = getenv("serial#"); printf("Board: Arches - AMCC DUAL PPC460GT Reference Design\n"); printf(" Revision %02x.%02x ", board_fpga_read(0x0), board_fpga_read(0x1)); gd->board_type = BOARD_ARCHES; /* Only CPU0 has access to CPLD registers */ if (get_cpu_num() == 0) { u8 cfg_sw = board_cpld_read(0x1); printf("(FPGA=%02x, CPLD=%02x)\n", board_fpga_read(0x2), board_cpld_read(0x0)); printf(" Configuration Switch %d%d%d%d\n", ((cfg_sw >> 3) & 0x01), ((cfg_sw >> 2) & 0x01), ((cfg_sw >> 1) & 0x01), ((cfg_sw >> 0) & 0x01)); } else printf("(FPGA=%02x, CPLD=xx)\n", board_fpga_read(0x2)); if (s != NULL) printf(" Serial# %s\n", s); return 0; } #endif /* !defined(CONFIG_ARCHES) */ #if defined(CONFIG_PCI) int board_pcie_first(void) { /* * Canyonlands with SATA enabled has only one PCIe slot * (2nd one). */ if (gd->board_type == BOARD_CANYONLANDS_SATA) return 1; return 0; } #endif /* CONFIG_PCI */ int board_early_init_r (void) { /* * Canyonlands has 64MBytes of NOR FLASH (Spansion 29GL512), but the * boot EBC mapping only supports a maximum of 16MBytes * (4.ff00.0000 - 4.ffff.ffff). * To solve this problem, the FLASH has to get remapped to another * EBC address which accepts bigger regions: * * 0xfc00.0000 -> 4.cc00.0000 */ /* Remap the NOR FLASH to 0xcc00.0000 ... 0xcfff.ffff */ #if defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL) mtebc(PB3CR, CONFIG_SYS_FLASH_BASE_PHYS_L | 0xda000); #else mtebc(PB0CR, CONFIG_SYS_FLASH_BASE_PHYS_L | 0xda000); #endif /* Remove TLB entry of boot EBC mapping */ remove_tlb(CONFIG_SYS_BOOT_BASE_ADDR, 16 << 20); /* Add TLB entry for 0xfc00.0000 -> 0x4.cc00.0000 */ program_tlb(CONFIG_SYS_FLASH_BASE_PHYS, CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_SIZE, TLB_WORD2_I_ENABLE); /* * Now accessing of the whole 64Mbytes of NOR FLASH at virtual address * 0xfc00.0000 is possible */ /* * Clear potential errors resulting from auto-calibration. * If not done, then we could get an interrupt later on when * exceptions are enabled. */ set_mcsr(get_mcsr()); return 0; } #if !defined(CONFIG_ARCHES) int misc_init_r(void) { u32 sdr0_srst1 = 0; u32 eth_cfg; u8 val; /* * Set EMAC mode/configuration (GMII, SGMII, RGMII...). * This is board specific, so let's do it here. */ mfsdr(SDR0_ETH_CFG, eth_cfg); /* disable SGMII mode */ eth_cfg &= ~(SDR0_ETH_CFG_SGMII2_ENABLE | SDR0_ETH_CFG_SGMII1_ENABLE | SDR0_ETH_CFG_SGMII0_ENABLE); /* Set the for 2 RGMII mode */ /* GMC0 EMAC4_0, GMC0 EMAC4_1, RGMII Bridge 0 */ eth_cfg &= ~SDR0_ETH_CFG_GMC0_BRIDGE_SEL; if (pvr_460ex()) eth_cfg |= SDR0_ETH_CFG_GMC1_BRIDGE_SEL; else eth_cfg &= ~SDR0_ETH_CFG_GMC1_BRIDGE_SEL; mtsdr(SDR0_ETH_CFG, eth_cfg); /* * The AHB Bridge core is held in reset after power-on or reset * so enable it now */ mfsdr(SDR0_SRST1, sdr0_srst1); sdr0_srst1 &= ~SDR0_SRST1_AHB; mtsdr(SDR0_SRST1, sdr0_srst1); /* * RTC/M41T62: * Disable square wave output: Batterie will be drained * quickly, when this output is not disabled */ val = i2c_reg_read(CONFIG_SYS_I2C_RTC_ADDR, 0xa); val &= ~0x40; i2c_reg_write(CONFIG_SYS_I2C_RTC_ADDR, 0xa, val); return 0; } #else /* defined(CONFIG_ARCHES) */ int misc_init_r(void) { u32 eth_cfg = 0; u32 eth_pll; u32 reg; /* * Set EMAC mode/configuration (GMII, SGMII, RGMII...). * This is board specific, so let's do it here. */ /* enable SGMII mode */ eth_cfg |= (SDR0_ETH_CFG_SGMII0_ENABLE | SDR0_ETH_CFG_SGMII1_ENABLE | SDR0_ETH_CFG_SGMII2_ENABLE); /* Set EMAC for MDIO */ eth_cfg |= SDR0_ETH_CFG_MDIO_SEL_EMAC0; /* bypass the TAHOE0/TAHOE1 cores for U-Boot */ eth_cfg |= (SDR0_ETH_CFG_TAHOE0_BYPASS | SDR0_ETH_CFG_TAHOE1_BYPASS); mtsdr(SDR0_ETH_CFG, eth_cfg); /* reset all SGMII interfaces */ mfsdr(SDR0_SRST1, reg); reg |= (SDR0_SRST1_SGMII0 | SDR0_SRST1_SGMII1 | SDR0_SRST1_SGMII2); mtsdr(SDR0_SRST1, reg); mtsdr(SDR0_ETH_STS, 0xFFFFFFFF); mtsdr(SDR0_SRST1, 0x00000000); do { mfsdr(SDR0_ETH_PLL, eth_pll); } while (!(eth_pll & SDR0_ETH_PLL_PLLLOCK)); return 0; } #endif /* !defined(CONFIG_ARCHES) */ #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) extern void __ft_board_setup(void *blob, bd_t *bd); void ft_board_setup(void *blob, bd_t *bd) { __ft_board_setup(blob, bd); if (gd->board_type == BOARD_CANYONLANDS_SATA) { /* * When SATA is selected we need to disable the first PCIe * node in the device tree, so that Linux doesn't initialize * it. */ fdt_find_and_setprop(blob, "/plb/pciex@d00000000", "status", "disabled", sizeof("disabled"), 1); } if (gd->board_type == BOARD_CANYONLANDS_PCIE) { /* * When PCIe is selected we need to disable the SATA * node in the device tree, so that Linux doesn't initialize * it. */ fdt_find_and_setprop(blob, "/plb/sata@bffd1000", "status", "disabled", sizeof("disabled"), 1); } } #endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */