diff options
Diffstat (limited to 'u-boot/board/amcc/canyonlands/canyonlands.c')
| -rw-r--r-- | u-boot/board/amcc/canyonlands/canyonlands.c | 534 |
1 files changed, 534 insertions, 0 deletions
diff --git a/u-boot/board/amcc/canyonlands/canyonlands.c b/u-boot/board/amcc/canyonlands/canyonlands.c new file mode 100644 index 0000000..80e2739 --- /dev/null +++ b/u-boot/board/amcc/canyonlands/canyonlands.c @@ -0,0 +1,534 @@ +/* + * (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 *s = getenv("serial#"); + + 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 (s != NULL) { + puts(", serial# "); + puts(s); + } + 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) */ |