[U-Boot-Users] [PATCH 2/3] Add support for AT91CAP9 cpu and AT91CAP9A-DK board
Stelian Pop
stelian at popies.net
Wed Jan 16 11:37:46 CET 2008
board/* parts of the patch.
--- /dev/null
+++ b/board/at91cap9adk/Makefile
@@ -0,0 +1,50 @@
+#
+# (C) Copyright 2003-2006
+# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+#
+# 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 $(TOPDIR)/config.mk
+
+LIB = $(obj)lib$(BOARD).a
+
+COBJS := at91cap9adk.o led.o nand.o
+
+SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+SOBJS := $(addprefix $(obj),$(SOBJS))
+
+$(LIB): $(obj).depend $(OBJS) $(SOBJS)
+ $(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
+
+clean:
+ rm -f $(SOBJS) $(OBJS)
+
+distclean: clean
+ rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
--- /dev/null
+++ b/board/at91cap9adk/at91cap9adk.c
@@ -0,0 +1,273 @@
+/*
+ * (C) Copyright 2007
+ * Stelian Pop <stelian.pop at leadtechdesign.com>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * 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 <asm/arch/AT91CAP9.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* ------------------------------------------------------------------------- */
+/*
+ * Miscelaneous platform dependent initialisations
+ */
+
+static void at91cap9_serial_hw_init(void)
+{
+#ifdef CONFIG_DBGU
+ AT91C_BASE_PIOC->PIO_PDR = AT91C_PC31_DTXD | AT91C_PC30_DRXD; /* PC 31 & 30 */
+ AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_SYS;
+#endif
+
+#ifdef CONFIG_USART0
+ AT91C_BASE_PIOA->PIO_PDR = AT91C_PA22_TXD0 | AT91C_PA23_RXD0; /* PA 22 & 23 */
+ AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_US0;
+#endif
+
+#ifdef CONFIG_USART1
+ AT91C_BASE_PIOD->PIO_PDR = AT91C_PD0_TXD1 | AT91C_PD1_RXD1; /* PD 0 & 1 */
+ AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_US1;
+#endif
+
+#ifdef CONFIG_USART2
+ AT91C_BASE_PIOD->PIO_PDR = AT91C_PD2_TXD2 | AT91C_PD3_RXD2; /* PD 2 & 3 */
+ AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_US2;
+#endif
+}
+
+static void at91cap9_nor_hw_init(void)
+{
+ /* Ensure EBI supply is 3.3V */
+ AT91C_BASE_CCFG->CCFG_EBICSA |= AT91C_EBI_SUP_3V3;
+
+ /* Configure SMC CS0 for parallel flash */
+ AT91C_BASE_SMC->SMC_SETUP0 = AT91C_FLASH_NWE_SETUP | \
+ AT91C_FLASH_NCS_WR_SETUP | \
+ AT91C_FLASH_NRD_SETUP | \
+ AT91C_FLASH_NCS_RD_SETUP;
+
+ AT91C_BASE_SMC->SMC_PULSE0 = AT91C_FLASH_NWE_PULSE | \
+ AT91C_FLASH_NCS_WR_PULSE | \
+ AT91C_FLASH_NRD_PULSE | \
+ AT91C_FLASH_NCS_RD_PULSE;
+
+ AT91C_BASE_SMC->SMC_CYCLE0 = AT91C_FLASH_NWE_CYCLE | \
+ AT91C_FLASH_NRD_CYCLE;
+
+ AT91C_BASE_SMC->SMC_CTRL0 = AT91C_SMC_READMODE | \
+ AT91C_SMC_WRITEMODE | \
+ AT91C_SMC_NWAITM_NWAIT_DISABLE | \
+ AT91C_SMC_BAT_BYTE_WRITE | \
+ AT91C_SMC_DBW_WIDTH_SIXTEEN_BITS |
+ (AT91C_SMC_TDF & (1 << 16));
+}
+
+#ifdef CONFIG_CMD_NAND
+static void at91cap9_nand_hw_init(void)
+{
+ /* Enable CS3 */
+ AT91C_BASE_CCFG->CCFG_EBICSA |= AT91C_EBI_CS3A_SM | AT91C_EBI_SUP_3V3;
+
+ /* Configure SMC CS3 for NAND/SmartMedia */
+ AT91C_BASE_SMC->SMC_SETUP3 = AT91C_SM_NWE_SETUP | AT91C_SM_NCS_WR_SETUP |
+ AT91C_SM_NRD_SETUP | AT91C_SM_NCS_RD_SETUP;
+
+ AT91C_BASE_SMC->SMC_PULSE3 = AT91C_SM_NWE_PULSE | AT91C_SM_NCS_WR_PULSE |
+ AT91C_SM_NRD_PULSE | AT91C_SM_NCS_RD_PULSE;
+
+ AT91C_BASE_SMC->SMC_CYCLE3 = AT91C_SM_NWE_CYCLE | AT91C_SM_NRD_CYCLE;
+
+ AT91C_BASE_SMC->SMC_CTRL3 = AT91C_SMC_READMODE | AT91C_SMC_WRITEMODE |
+ AT91C_SMC_NWAITM_NWAIT_DISABLE |
+ AT91C_SMC_DBW_WIDTH_EIGTH_BITS | AT91C_SM_TDF;
+
+ AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_PIOABCDE;
+
+ /* RDY/BSY is not connected */
+
+ /* Enable NandFlash */
+ AT91C_BASE_PIOD->PIO_PER = AT91C_PIO_PD15;
+ AT91C_BASE_PIOD->PIO_OER = AT91C_PIO_PD15;
+}
+#endif
+
+#ifdef CONFIG_HAS_DATAFLASH
+static void at91cap9_spi_hw_init(void)
+{
+ AT91C_BASE_PIOD->PIO_BSR = AT91C_PD0_SPI0_NPCS2D | AT91C_PD1_SPI0_NPCS3D;
+ AT91C_BASE_PIOD->PIO_PDR = AT91C_PD0_SPI0_NPCS2D | AT91C_PD1_SPI0_NPCS3D;
+
+ AT91C_BASE_PIOA->PIO_ASR = AT91C_PA28_SPI0_NPCS3A;
+ AT91C_BASE_PIOA->PIO_BSR = AT91C_PA4_SPI0_NPCS2A | AT91C_PA1_SPI0_MOSI | \
+ AT91C_PA0_SPI0_MISO | AT91C_PA3_SPI0_NPCS1 | \
+ AT91C_PA5_SPI0_NPCS0 | AT91C_PA2_SPI0_SPCK;
+ AT91C_BASE_PIOA->PIO_PDR = AT91C_PA28_SPI0_NPCS3A | \
+ AT91C_PA4_SPI0_NPCS2A | AT91C_PA1_SPI0_MOSI | \
+ AT91C_PA0_SPI0_MISO | AT91C_PA3_SPI0_NPCS1 | \
+ AT91C_PA5_SPI0_NPCS0 | AT91C_PA2_SPI0_SPCK;
+
+ /* Enable Clock */
+ AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_SPI0;
+}
+#endif
+
+#ifdef CONFIG_MACB
+static void at91cap9_macb_hw_init(void)
+{
+ unsigned int gpio;
+
+ /* Enable clock */
+ AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_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
+ */
+ AT91C_BASE_PIOB->PIO_PPUDR = AT91C_PB22_E_RXDV | AT91C_PB25_E_RX0 | AT91C_PB26_E_RX1;
+
+ /* Need to reset PHY -> 500ms reset */
+ AT91C_BASE_RSTC->RSTC_RMR = (AT91C_RSTC_KEY & ((unsigned int)0xA5<<24)) |
+ (AT91C_RSTC_ERSTL & (0x0D << 8)) | AT91C_RSTC_URSTEN;
+ AT91C_BASE_RSTC->RSTC_RCR = (AT91C_RSTC_KEY & ((unsigned int)0xA5<<24)) |
+ AT91C_RSTC_EXTRST;
+
+ /* Wait for end hardware reset */
+ while (!(AT91C_BASE_RSTC->RSTC_RSR & AT91C_RSTC_NRSTL));
+
+ /* Re-enable pull-up */
+ AT91C_BASE_PIOB->PIO_PPUER = AT91C_PB22_E_RXDV | AT91C_PB25_E_RX0 | AT91C_PB26_E_RX1;
+
+#ifdef CONFIG_RMII
+ gpio = AT91C_PB30_E_MDIO | \
+ AT91C_PB29_E_MDC | \
+ AT91C_PB21_E_TXCK | \
+ AT91C_PB27_E_RXER | \
+ AT91C_PB25_E_RX0 | \
+ AT91C_PB22_E_RXDV | \
+ AT91C_PB26_E_RX1 | \
+ AT91C_PB28_E_TXEN | \
+ AT91C_PB23_E_TX0 | \
+ AT91C_PB24_E_TX1;
+ AT91C_BASE_PIOB->PIO_ASR = gpio;
+ AT91C_BASE_PIOB->PIO_BSR = 0;
+ AT91C_BASE_PIOB->PIO_PDR = gpio;
+#else
+#error AT91CAP9A-DK works only in RMII mode
+#endif
+
+ /* Unlock EMAC, 3 0 2 1 sequence */
+#define MP_BLOCK_3_BASE 0xFDF00000
+#define MP_MAC_KEY0 0x5969cb2a
+#define MP_MAC_KEY1 0xb4a1872e
+#define MP_MAC_KEY2 0x05683fbc
+#define MP_MAC_KEY3 0x3634fba4
+#define UNLOCK_MAC 0x00000008
+ *((AT91_REG*)((AT91_REG) MP_BLOCK_3_BASE + 0x3c)) = MP_MAC_KEY3;
+ *((AT91_REG*)((AT91_REG) MP_BLOCK_3_BASE + 0x30)) = MP_MAC_KEY0;
+ *((AT91_REG*)((AT91_REG) MP_BLOCK_3_BASE + 0x38)) = MP_MAC_KEY2;
+ *((AT91_REG*)((AT91_REG) MP_BLOCK_3_BASE + 0x34)) = MP_MAC_KEY1;
+ *((AT91_REG*)((AT91_REG) MP_BLOCK_3_BASE + 0x40)) = UNLOCK_MAC;
+#undef MP_BLOCK_3_BASE
+#undef MP_MAC_KEY0
+#undef MP_MAC_KEY1
+#undef MP_MAC_KEY2
+#undef MP_MAC_KEY3
+#undef UNLOCK_MAC
+}
+#endif
+
+#ifdef CONFIG_USB_OHCI_NEW
+static void at91cap9_uhp_hw_init(void)
+{
+ /* Unlock USB OHCI, 3 2 0 1 sequence */
+#define MP_BLOCK_3_BASE 0xFDF00000
+#define MP_OHCI_KEY0 0x896c11ca
+#define MP_OHCI_KEY1 0x68ebca21
+#define MP_OHCI_KEY2 0x4823efbc
+#define MP_OHCI_KEY3 0x8651aae4
+#define UNLOCK_OHCI 0x00000010
+ *((AT91_REG*)((AT91_REG) MP_BLOCK_3_BASE + 0x3c)) = MP_OHCI_KEY3;
+ *((AT91_REG*)((AT91_REG) MP_BLOCK_3_BASE + 0x38)) = MP_OHCI_KEY2;
+ *((AT91_REG*)((AT91_REG) MP_BLOCK_3_BASE + 0x30)) = MP_OHCI_KEY0;
+ *((AT91_REG*)((AT91_REG) MP_BLOCK_3_BASE + 0x34)) = MP_OHCI_KEY1;
+ *((AT91_REG*)((AT91_REG) MP_BLOCK_3_BASE + 0x40)) = UNLOCK_OHCI;
+#undef MP_BLOCK_3_BASE
+#undef MP_OHCI_KEY0
+#undef MP_OHCI_KEY1
+#undef MP_OHCI_KEY2
+#undef MP_OHCI_KEY3
+#undef UNLOCK_OHCI
+}
+#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
--- /dev/null
+++ b/board/at91cap9adk/config.mk
@@ -0,0 +1 @@
+TEXT_BASE = 0x73000000
--- /dev/null
+++ b/board/at91cap9adk/led.c
@@ -0,0 +1,79 @@
+/*
+ * (C) Copyright 2007
+ * Stelian Pop <stelian.pop at leadtechdesign.com>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * 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 <asm/arch/AT91CAP9.h>
+
+#define RED_LED AT91C_PIO_PC29 /* this is the power led */
+#define GREEN_LED AT91C_PIO_PA10 /* this is the user1 led */
+#define YELLOW_LED AT91C_PIO_PA11 /* this is the user1 led */
+
+void red_LED_on(void)
+{
+ AT91C_BASE_PIOC->PIO_SODR = RED_LED;
+}
+
+void red_LED_off(void)
+{
+ AT91C_BASE_PIOC->PIO_CODR = RED_LED;
+}
+
+void green_LED_on(void)
+{
+ AT91C_BASE_PIOA->PIO_CODR = GREEN_LED;
+}
+
+void green_LED_off(void)
+{
+ AT91C_BASE_PIOA->PIO_SODR = GREEN_LED;
+}
+
+void yellow_LED_on(void)
+{
+ AT91C_BASE_PIOA->PIO_CODR = YELLOW_LED;
+}
+
+void yellow_LED_off(void)
+{
+ AT91C_BASE_PIOA->PIO_SODR = YELLOW_LED;
+}
+
+void coloured_LED_init (void)
+{
+ AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_PIOABCDE; /* Enable clock */
+
+ /* Disable peripherals on LEDs */
+ AT91C_BASE_PIOA->PIO_PER = GREEN_LED | YELLOW_LED;
+ /* Enable pins as outputs */
+ AT91C_BASE_PIOA->PIO_OER = GREEN_LED | YELLOW_LED;
+ /* Turn all LEDs OFF */
+ AT91C_BASE_PIOA->PIO_SODR = GREEN_LED | YELLOW_LED;
+
+ /* Disable peripherals on LEDs */
+ AT91C_BASE_PIOC->PIO_PER = RED_LED;
+ /* Enable pins as outputs */
+ AT91C_BASE_PIOC->PIO_OER = RED_LED;
+ /* Turn all LEDs OFF */
+ AT91C_BASE_PIOC->PIO_CODR = RED_LED;
+}
--- /dev/null
+++ b/board/at91cap9adk/nand.c
@@ -0,0 +1,63 @@
+/*
+ * (C) Copyright 2007
+ * Stelian Pop <stelian.pop at leadtechdesign.com>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * (C) Copyright 2006 ATMEL Rousset, Lacressonniere Nicolas
+ *
+ * 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 <asm/arch/hardware.h>
+
+#ifdef CONFIG_CMD_NAND
+
+#include <nand.h>
+
+/*
+ * hardware specific access to control-lines
+ */
+#define MASK_ALE (1 << 21) /* our ALE is AD21 */
+#define MASK_CLE (1 << 22) /* our CLE is AD22 */
+
+static void at91cap9adk_nand_hwcontrol(struct mtd_info *mtd, int cmd)
+{
+ struct nand_chip *this = mtd->priv;
+ ulong IO_ADDR_W = (ulong) this->IO_ADDR_W;
+
+ IO_ADDR_W &= ~(MASK_ALE|MASK_CLE);
+ switch (cmd) {
+ case NAND_CTL_SETCLE: IO_ADDR_W |= MASK_CLE; break;
+ case NAND_CTL_SETALE: IO_ADDR_W |= MASK_ALE; break;
+ case NAND_CTL_CLRNCE: *AT91C_PIOD_SODR = AT91C_PIO_PD15; break;
+ case NAND_CTL_SETNCE: *AT91C_PIOD_CODR = AT91C_PIO_PD15; break;
+ }
+ this->IO_ADDR_W = (void *) IO_ADDR_W;
+}
+
+int board_nand_init(struct nand_chip *nand)
+{
+ nand->eccmode = NAND_ECC_SOFT;
+ nand->hwcontrol = at91cap9adk_nand_hwcontrol;
+ nand->chip_delay = 20;
+
+ return 0;
+}
+#endif
--- /dev/null
+++ b/board/at91cap9adk/u-boot.lds
@@ -0,0 +1,57 @@
+/*
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <gj at denx.de>
+ *
+ * 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
+ */
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+/*OUTPUT_FORMAT("elf32-arm", "elf32-arm", "elf32-arm")*/
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+ . = 0x00000000;
+
+ . = ALIGN(4);
+ .text :
+ {
+ cpu/arm926ejs/start.o (.text)
+ *(.text)
+ }
+
+ . = ALIGN(4);
+ .rodata : { *(.rodata) }
+
+ . = ALIGN(4);
+ .data : { *(.data) }
+
+ . = ALIGN(4);
+ .got : { *(.got) }
+
+ . = .;
+ __u_boot_cmd_start = .;
+ .u_boot_cmd : { *(.u_boot_cmd) }
+ __u_boot_cmd_end = .;
+
+ . = ALIGN(4);
+ __bss_start = .;
+ .bss : { *(.bss) }
+ _end = .;
+}
--
Stelian Pop <stelian at popies.net>
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