/* * (C) Copyright 2007-2008 * Stelian Pop * Lead Tech Design * * 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 #include #include #include #include #include #include #include #if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB) #include #endif #define MP_BLOCK_3_BASE 0xFDF00000 DECLARE_GLOBAL_DATA_PTR; /* ------------------------------------------------------------------------- */ /* * Miscelaneous platform dependent initialisations */ static void at91cap9_serial_hw_init(void) { #ifdef CONFIG_USART0 at91_set_A_periph(AT91_PIN_PA22, 1); /* TXD0 */ at91_set_A_periph(AT91_PIN_PA23, 0); /* RXD0 */ at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US0); #endif #ifdef CONFIG_USART1 at91_set_A_periph(AT91_PIN_PD0, 1); /* TXD1 */ at91_set_A_periph(AT91_PIN_PD1, 0); /* RXD1 */ at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US1); #endif #ifdef CONFIG_USART2 at91_set_A_periph(AT91_PIN_PD2, 1); /* TXD2 */ at91_set_A_periph(AT91_PIN_PD3, 0); /* RXD2 */ at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US2); #endif #ifdef CONFIG_USART3 /* DBGU */ at91_set_A_periph(AT91_PIN_PC30, 0); /* DRXD */ at91_set_A_periph(AT91_PIN_PC31, 1); /* DTXD */ at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS); #endif } static void at91cap9_nor_hw_init(void) { unsigned long csa; /* Ensure EBI supply is 3.3V */ csa = at91_sys_read(AT91_MATRIX_EBICSA); at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V); /* Configure SMC CS0 for parallel flash */ at91_sys_write(AT91_SMC_SETUP(0), AT91_SMC_NWESETUP_(4) | AT91_SMC_NCS_WRSETUP_(2) | AT91_SMC_NRDSETUP_(4) | AT91_SMC_NCS_RDSETUP_(2)); at91_sys_write(AT91_SMC_PULSE(0), AT91_SMC_NWEPULSE_(8) | AT91_SMC_NCS_WRPULSE_(10) | AT91_SMC_NRDPULSE_(8) | AT91_SMC_NCS_RDPULSE_(10)); at91_sys_write(AT91_SMC_CYCLE(0), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16)); at91_sys_write(AT91_SMC_MODE(0), AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16 | AT91_SMC_TDF_(1)); } #ifdef CONFIG_CMD_NAND static void at91cap9_nand_hw_init(void) { unsigned long csa; /* Enable CS3 */ csa = at91_sys_read(AT91_MATRIX_EBICSA); at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA | AT91_MATRIX_EBI_VDDIOMSEL_3_3V); /* Configure SMC CS3 for NAND/SmartMedia */ at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(1) | AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(1)); at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(6) | AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(6)); at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(8) | AT91_SMC_NRDCYCLE_(8)); at91_sys_write(AT91_SMC_MODE(3), AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | #ifdef CFG_NAND_DBW_16 AT91_SMC_DBW_16 | #else /* CFG_NAND_DBW_8 */ AT91_SMC_DBW_8 | #endif AT91_SMC_TDF_(1)); at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_PIOABCD); /* RDY/BSY is not connected */ /* Enable NandFlash */ at91_set_gpio_output(AT91_PIN_PD15, 1); } #endif #ifdef CONFIG_HAS_DATAFLASH static void at91cap9_spi_hw_init(void) { at91_set_B_periph(AT91_PIN_PA5, 0); /* SPI0_NPCS0 */ at91_set_B_periph(AT91_PIN_PA0, 0); /* SPI0_MISO */ at91_set_B_periph(AT91_PIN_PA1, 0); /* SPI0_MOSI */ at91_set_B_periph(AT91_PIN_PA2, 0); /* SPI0_SPCK */ /* Enable clock */ at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_SPI0); } #endif #ifdef CONFIG_MACB static void at91cap9_macb_hw_init(void) { /* Enable clock */ at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_EMAC); /* * Disable pull-up on: * RXDV (PB22) => PHY normal mode (not Test mode) * ERX0 (PB25) => PHY ADDR0 * ERX1 (PB26) => PHY ADDR1 => PHYADDR = 0x0 * * PHY has internal pull-down */ writel(pin_to_mask(AT91_PIN_PB22) | pin_to_mask(AT91_PIN_PB25) | pin_to_mask(AT91_PIN_PB26), pin_to_controller(AT91_PIN_PA0) + PIO_PUDR); /* Need to reset PHY -> 500ms reset */ at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY | AT91_RSTC_ERSTL | (0x0D << 8) | AT91_RSTC_URSTEN); at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_EXTRST); /* Wait for end hardware reset */ while (!(at91_sys_read(AT91_RSTC_SR) & AT91_RSTC_NRSTL)); /* Re-enable pull-up */ writel(pin_to_mask(AT91_PIN_PB22) | pin_to_mask(AT91_PIN_PB25) | pin_to_mask(AT91_PIN_PB26), pin_to_controller(AT91_PIN_PA0) + PIO_PUER); at91_set_A_periph(AT91_PIN_PB21, 0); /* ETXCK_EREFCK */ at91_set_A_periph(AT91_PIN_PB22, 0); /* ERXDV */ at91_set_A_periph(AT91_PIN_PB25, 0); /* ERX0 */ at91_set_A_periph(AT91_PIN_PB26, 0); /* ERX1 */ at91_set_A_periph(AT91_PIN_PB27, 0); /* ERXER */ at91_set_A_periph(AT91_PIN_PB28, 0); /* ETXEN */ at91_set_A_periph(AT91_PIN_PB23, 0); /* ETX0 */ at91_set_A_periph(AT91_PIN_PB24, 0); /* ETX1 */ at91_set_A_periph(AT91_PIN_PB30, 0); /* EMDIO */ at91_set_A_periph(AT91_PIN_PB29, 0); /* EMDC */ #ifndef CONFIG_RMII at91_set_B_periph(AT91_PIN_PC25, 0); /* ECRS */ at91_set_B_periph(AT91_PIN_PC26, 0); /* ECOL */ at91_set_B_periph(AT91_PIN_PC22, 0); /* ERX2 */ at91_set_B_periph(AT91_PIN_PC23, 0); /* ERX3 */ at91_set_B_periph(AT91_PIN_PC27, 0); /* ERXCK */ at91_set_B_periph(AT91_PIN_PC20, 0); /* ETX2 */ at91_set_B_periph(AT91_PIN_PC21, 0); /* ETX3 */ at91_set_B_periph(AT91_PIN_PC24, 0); /* ETXER */ #endif /* Unlock EMAC, 3 0 2 1 sequence */ #define MP_MAC_KEY0 0x5969cb2a #define MP_MAC_KEY1 0xb4a1872e #define MP_MAC_KEY2 0x05683fbc #define MP_MAC_KEY3 0x3634fba4 #define UNLOCK_MAC 0x00000008 writel(MP_MAC_KEY3, MP_BLOCK_3_BASE + 0x3c); writel(MP_MAC_KEY0, MP_BLOCK_3_BASE + 0x30); writel(MP_MAC_KEY2, MP_BLOCK_3_BASE + 0x38); writel(MP_MAC_KEY1, MP_BLOCK_3_BASE + 0x34); writel(UNLOCK_MAC, MP_BLOCK_3_BASE + 0x40); } #endif #ifdef CONFIG_USB_OHCI_NEW static void at91cap9_uhp_hw_init(void) { /* Unlock USB OHCI, 3 2 0 1 sequence */ #define MP_OHCI_KEY0 0x896c11ca #define MP_OHCI_KEY1 0x68ebca21 #define MP_OHCI_KEY2 0x4823efbc #define MP_OHCI_KEY3 0x8651aae4 #define UNLOCK_OHCI 0x00000010 writel(MP_OHCI_KEY3, MP_BLOCK_3_BASE + 0x3c); writel(MP_OHCI_KEY2, MP_BLOCK_3_BASE + 0x38); writel(MP_OHCI_KEY0, MP_BLOCK_3_BASE + 0x30); writel(MP_OHCI_KEY1, MP_BLOCK_3_BASE + 0x34); writel(UNLOCK_OHCI, MP_BLOCK_3_BASE + 0x40); } #endif int board_init(void) { /* Enable Ctrlc */ console_init_f(); /* arch number of AT91CAP9ADK-Board */ gd->bd->bi_arch_number = MACH_TYPE_AT91CAP9ADK; /* adress of boot parameters */ gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; at91cap9_serial_hw_init(); at91cap9_nor_hw_init(); #ifdef CONFIG_CMD_NAND at91cap9_nand_hw_init(); #endif #ifdef CONFIG_HAS_DATAFLASH at91cap9_spi_hw_init(); #endif #ifdef CONFIG_MACB at91cap9_macb_hw_init(); #endif #ifdef CONFIG_USB_OHCI_NEW at91cap9_uhp_hw_init(); #endif return 0; } int dram_init(void) { gd->bd->bi_dram[0].start = PHYS_SDRAM; gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE; return 0; } #ifdef CONFIG_RESET_PHY_R void reset_phy(void) { #ifdef CONFIG_MACB /* * Initialize ethernet HW addr prior to starting Linux, * needed for nfsroot */ eth_init(gd->bd); #endif } #endif