This patch removes volatile from: volatile IP_t *ip = (IP_t *)xip;

Due to a bug, avr32-gcc will assume that ip is aligned on a word boundary when using volatile, which causes an exception since xip isn't aligned on a word boundary.

Signed-off-by: Gunnar Rangoy gunnar@rangoy.com Signed-off-by: Paul Driveklepp pauldriveklepp@gmail.com Signed-off-by: Olav Morken olavmrk@gmail.com --- net/net.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/net/net.c b/net/net.c index 313d5d8..405ca6e 100644 --- a/net/net.c +++ b/net/net.c @@ -1685,7 +1685,7 @@ NetSetEther(volatile uchar * xet, uchar * addr, uint prot) void NetSetIP(volatile uchar * xip, IPaddr_t dest, int dport, int sport, int len) { - volatile IP_t *ip = (IP_t *)xip; + IP_t *ip = (IP_t *)xip;

/* * If the data is an odd number of bytes, zero the

The AT32UC3A series of processors doesn't contain any cache, and issuing cache control instructions on those will cause an exception. This commit makes cacheflush.h arch-dependent in preparation for the AT32UC3A-support.

Signed-off-by: Gunnar Rangoy gunnar@rangoy.com Signed-off-by: Paul Driveklepp pauldriveklepp@gmail.com Signed-off-by: Olav Morken olavmrk@gmail.com --- board/atmel/atstk1000/flash.c | 2 +- board/earthlcd/favr-32-ezkit/flash.c | 2 +- cpu/at32ap/cache.c | 2 +- include/asm-avr32/arch-at32ap700x/cacheflush.h | 83 ++++++++++++++++++++++++ include/asm-avr32/cacheflush.h | 83 ------------------------ include/asm-avr32/dma-mapping.h | 2 +- lib_avr32/board.c | 2 +- 7 files changed, 88 insertions(+), 88 deletions(-) create mode 100644 include/asm-avr32/arch-at32ap700x/cacheflush.h delete mode 100644 include/asm-avr32/cacheflush.h

diff --git a/board/atmel/atstk1000/flash.c b/board/atmel/atstk1000/flash.c index e2bfd4a..1b45940 100644 --- a/board/atmel/atstk1000/flash.c +++ b/board/atmel/atstk1000/flash.c @@ -22,7 +22,7 @@ #include <common.h>

#ifdef CONFIG_ATSTK1000_EXT_FLASH -#include <asm/cacheflush.h> +#include <asm/arch/cacheflush.h> #include <asm/io.h> #include <asm/sections.h>

diff --git a/board/earthlcd/favr-32-ezkit/flash.c b/board/earthlcd/favr-32-ezkit/flash.c index 2aa9415..fdf83ad 100644 --- a/board/earthlcd/favr-32-ezkit/flash.c +++ b/board/earthlcd/favr-32-ezkit/flash.c @@ -20,7 +20,7 @@ #include <common.h>

#ifdef CONFIG_FAVR32_EZKIT_EXT_FLASH -#include <asm/cacheflush.h> +#include <asm/arch/cacheflush.h> #include <asm/io.h> #include <asm/sections.h>

diff --git a/cpu/at32ap/cache.c b/cpu/at32ap/cache.c index 41fb5aa..3f1eea5 100644 --- a/cpu/at32ap/cache.c +++ b/cpu/at32ap/cache.c @@ -22,7 +22,7 @@

#include <common.h>

-#include <asm/cacheflush.h> +#include <asm/arch/cacheflush.h>

void dcache_clean_range(volatile void *start, size_t size) { diff --git a/include/asm-avr32/arch-at32ap700x/cacheflush.h b/include/asm-avr32/arch-at32ap700x/cacheflush.h new file mode 100644 index 0000000..929f68e --- /dev/null +++ b/include/asm-avr32/arch-at32ap700x/cacheflush.h @@ -0,0 +1,83 @@ +/* + * Copyright (C) 2006 Atmel Corporation + * + * 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 + */ +#ifndef __ASM_AVR32_CACHEFLUSH_H +#define __ASM_AVR32_CACHEFLUSH_H + +/* + * Invalidate any cacheline containing virtual address vaddr without + * writing anything back to memory. + * + * Note that this function may corrupt unrelated data structures when + * applied on buffers that are not cacheline aligned in both ends. + */ +static inline void dcache_invalidate_line(volatile void *vaddr) +{ + asm volatile("cache %0[0], 0x0b" : : "r"(vaddr) : "memory"); +} + +/* + * Make sure any cacheline containing virtual address vaddr is written + * to memory. + */ +static inline void dcache_clean_line(volatile void *vaddr) +{ + asm volatile("cache %0[0], 0x0c" : : "r"(vaddr) : "memory"); +} + +/* + * Make sure any cacheline containing virtual address vaddr is written + * to memory and then invalidate it. + */ +static inline void dcache_flush_line(volatile void *vaddr) +{ + asm volatile("cache %0[0], 0x0d" : : "r"(vaddr) : "memory"); +} + +/* + * Invalidate any instruction cacheline containing virtual address + * vaddr. + */ +static inline void icache_invalidate_line(volatile void *vaddr) +{ + asm volatile("cache %0[0], 0x01" : : "r"(vaddr) : "memory"); +} + +/* + * Applies the above functions on all lines that are touched by the + * specified virtual address range. + */ +void dcache_invalidate_range(volatile void *start, size_t len); +void dcache_clean_range(volatile void *start, size_t len); +void dcache_flush_range(volatile void *start, size_t len); +void icache_invalidate_range(volatile void *start, size_t len); + +static inline void dcache_flush_unlocked(void) +{ + asm volatile("cache %0[5], 0x08" : : "r"(0) : "memory"); +} + +/* + * Make sure any pending writes are completed before continuing. + */ +#define sync_write_buffer() asm volatile("sync 0" : : : "memory") + +#endif /* __ASM_AVR32_CACHEFLUSH_H */ diff --git a/include/asm-avr32/cacheflush.h b/include/asm-avr32/cacheflush.h deleted file mode 100644 index 929f68e..0000000 --- a/include/asm-avr32/cacheflush.h +++ /dev/null @@ -1,83 +0,0 @@ -/* - * Copyright (C) 2006 Atmel Corporation - * - * 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 - */ -#ifndef __ASM_AVR32_CACHEFLUSH_H -#define __ASM_AVR32_CACHEFLUSH_H - -/* - * Invalidate any cacheline containing virtual address vaddr without - * writing anything back to memory. - * - * Note that this function may corrupt unrelated data structures when - * applied on buffers that are not cacheline aligned in both ends. - */ -static inline void dcache_invalidate_line(volatile void *vaddr) -{ - asm volatile("cache %0[0], 0x0b" : : "r"(vaddr) : "memory"); -} - -/* - * Make sure any cacheline containing virtual address vaddr is written - * to memory. - */ -static inline void dcache_clean_line(volatile void *vaddr) -{ - asm volatile("cache %0[0], 0x0c" : : "r"(vaddr) : "memory"); -} - -/* - * Make sure any cacheline containing virtual address vaddr is written - * to memory and then invalidate it. - */ -static inline void dcache_flush_line(volatile void *vaddr) -{ - asm volatile("cache %0[0], 0x0d" : : "r"(vaddr) : "memory"); -} - -/* - * Invalidate any instruction cacheline containing virtual address - * vaddr. - */ -static inline void icache_invalidate_line(volatile void *vaddr) -{ - asm volatile("cache %0[0], 0x01" : : "r"(vaddr) : "memory"); -} - -/* - * Applies the above functions on all lines that are touched by the - * specified virtual address range. - */ -void dcache_invalidate_range(volatile void *start, size_t len); -void dcache_clean_range(volatile void *start, size_t len); -void dcache_flush_range(volatile void *start, size_t len); -void icache_invalidate_range(volatile void *start, size_t len); - -static inline void dcache_flush_unlocked(void) -{ - asm volatile("cache %0[5], 0x08" : : "r"(0) : "memory"); -} - -/* - * Make sure any pending writes are completed before continuing. - */ -#define sync_write_buffer() asm volatile("sync 0" : : : "memory") - -#endif /* __ASM_AVR32_CACHEFLUSH_H */ diff --git a/include/asm-avr32/dma-mapping.h b/include/asm-avr32/dma-mapping.h index 259f6e8..7e7e9d4 100644 --- a/include/asm-avr32/dma-mapping.h +++ b/include/asm-avr32/dma-mapping.h @@ -23,7 +23,7 @@ #define __ASM_AVR32_DMA_MAPPING_H

#include <asm/io.h> -#include <asm/cacheflush.h> +#include <asm/arch/cacheflush.h>

enum dma_data_direction { DMA_BIDIRECTIONAL = 0, diff --git a/lib_avr32/board.c b/lib_avr32/board.c index d5147b8..216ff74 100644 --- a/lib_avr32/board.c +++ b/lib_avr32/board.c @@ -85,7 +85,7 @@ void *sbrk(ptrdiff_t increment) }

#ifdef CFG_DMA_ALLOC_LEN -#include <asm/cacheflush.h> +#include <asm/arch/cacheflush.h> #include <asm/io.h>

static unsigned long dma_alloc_start;

The AVR32A architecture (which AT32UC3A-series is based on) has a different memory layout than the AVR32B-architecture. This patch moves addrspace.h to an arch-dependent directory in preparation for AT32UC3A-support. It also moves some address-space manipulation functions from io.h to addrspace.h.

Signed-off-by: Gunnar Rangoy gunnar@rangoy.com Signed-off-by: Paul Driveklepp pauldriveklepp@gmail.com Signed-off-by: Olav Morken olavmrk@gmail.com --- include/asm-avr32/addrspace.h | 46 -------------- include/asm-avr32/arch-at32ap700x/addrspace.h | 84 +++++++++++++++++++++++++ include/asm-avr32/io.h | 39 +----------- lib_avr32/bootm.c | 2 +- 4 files changed, 87 insertions(+), 84 deletions(-) delete mode 100644 include/asm-avr32/addrspace.h create mode 100644 include/asm-avr32/arch-at32ap700x/addrspace.h

diff --git a/include/asm-avr32/addrspace.h b/include/asm-avr32/addrspace.h deleted file mode 100644 index b2ba1ee..0000000 --- a/include/asm-avr32/addrspace.h +++ /dev/null @@ -1,46 +0,0 @@ -/* - * Copyright (C) 2006 Atmel Corporation - * - * 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 - */ -#ifndef __ASM_AVR32_ADDRSPACE_H -#define __ASM_AVR32_ADDRSPACE_H - -/* Memory segments when segmentation is enabled */ -#define P0SEG 0x00000000 -#define P1SEG 0x80000000 -#define P2SEG 0xa0000000 -#define P3SEG 0xc0000000 -#define P4SEG 0xe0000000 - -/* Returns the privileged segment base of a given address */ -#define PXSEG(a) (((unsigned long)(a)) & 0xe0000000) - -/* Returns the physical address of a PnSEG (n=1,2) address */ -#define PHYSADDR(a) (((unsigned long)(a)) & 0x1fffffff) - -/* - * Map an address to a certain privileged segment - */ -#define P1SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P1SEG)) -#define P2SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P2SEG)) -#define P3SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P3SEG)) -#define P4SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P4SEG)) - -#endif /* __ASM_AVR32_ADDRSPACE_H */ diff --git a/include/asm-avr32/arch-at32ap700x/addrspace.h b/include/asm-avr32/arch-at32ap700x/addrspace.h new file mode 100644 index 0000000..49e2467 --- /dev/null +++ b/include/asm-avr32/arch-at32ap700x/addrspace.h @@ -0,0 +1,84 @@ +/* + * Copyright (C) 2006 Atmel Corporation + * + * 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 + */ +#ifndef __ASM_AVR32_ADDRSPACE_H +#define __ASM_AVR32_ADDRSPACE_H + +#include <asm/types.h> + +/* Memory segments when segmentation is enabled */ +#define P0SEG 0x00000000 +#define P1SEG 0x80000000 +#define P2SEG 0xa0000000 +#define P3SEG 0xc0000000 +#define P4SEG 0xe0000000 + +/* Returns the privileged segment base of a given address */ +#define PXSEG(a) (((unsigned long)(a)) & 0xe0000000) + +/* Returns the physical address of a PnSEG (n=1,2) address */ +#define PHYSADDR(a) (((unsigned long)(a)) & 0x1fffffff) + +/* + * Map an address to a certain privileged segment + */ +#define P1SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P1SEG)) +#define P2SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P2SEG)) +#define P3SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P3SEG)) +#define P4SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P4SEG)) + +/* virt_to_phys will only work when address is in P1 or P2 */ +static __inline__ unsigned long virt_to_phys(volatile void *address) +{ + return PHYSADDR(address); +} + +static __inline__ void * phys_to_virt(unsigned long address) +{ + return (void *)P1SEGADDR(address); +} + +#define cached(addr) ((void *)P1SEGADDR(addr)) +#define uncached(addr) ((void *)P2SEGADDR(addr)) + +/* + * Given a physical address and a length, return a virtual address + * that can be used to access the memory range with the caching + * properties specified by "flags". + * + * This implementation works for memory below 512MiB (flash, etc.) as + * well as above 3.5GiB (internal peripherals.) + */ +#define MAP_NOCACHE (0) +#define MAP_WRCOMBINE (1 << 7) +#define MAP_WRBACK (MAP_WRCOMBINE | (1 << 9)) +#define MAP_WRTHROUGH (MAP_WRBACK | (1 << 0)) + +static inline void * +map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags) +{ + if (flags == MAP_WRBACK) + return (void *)P1SEGADDR(paddr); + else + return (void *)P2SEGADDR(paddr); +} + +#endif /* __ASM_AVR32_ADDRSPACE_H */ diff --git a/include/asm-avr32/io.h b/include/asm-avr32/io.h index 06e52b1..1cb17ea 100644 --- a/include/asm-avr32/io.h +++ b/include/asm-avr32/io.h @@ -73,21 +73,8 @@ extern void __readwrite_bug(const char *fn); #define inw(p) ({ unsigned int __v = __le16_to_cpu(__raw_readw(p)); __v; }) #define inl(p) ({ unsigned int __v = __le32_to_cpu(__raw_readl(p)); __v; })

-#include <asm/addrspace.h> - -/* virt_to_phys will only work when address is in P1 or P2 */ -static __inline__ unsigned long virt_to_phys(volatile void *address) -{ - return PHYSADDR(address); -} - -static __inline__ void * phys_to_virt(unsigned long address) -{ - return (void *)P1SEGADDR(address); -} - -#define cached(addr) ((void *)P1SEGADDR(addr)) -#define uncached(addr) ((void *)P2SEGADDR(addr)) +#include <asm/arch/addrspace.h> +/* Provides virt_to_phys, phys_to_virt, cached, uncached, map_physmem */

#endif /* __KERNEL__ */

@@ -96,28 +83,6 @@ static inline void sync(void) }

/* - * Given a physical address and a length, return a virtual address - * that can be used to access the memory range with the caching - * properties specified by "flags". - * - * This implementation works for memory below 512MiB (flash, etc.) as - * well as above 3.5GiB (internal peripherals.) - */ -#define MAP_NOCACHE (0) -#define MAP_WRCOMBINE (1 << 7) -#define MAP_WRBACK (MAP_WRCOMBINE | (1 << 9)) -#define MAP_WRTHROUGH (MAP_WRBACK | (1 << 0)) - -static inline void * -map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags) -{ - if (flags == MAP_WRBACK) - return (void *)P1SEGADDR(paddr); - else - return (void *)P2SEGADDR(paddr); -} - -/* * Take down a mapping set up by map_physmem(). */ static inline void unmap_physmem(void *vaddr, unsigned long len) diff --git a/lib_avr32/bootm.c b/lib_avr32/bootm.c index 35240e2..9f1a817 100644 --- a/lib_avr32/bootm.c +++ b/lib_avr32/bootm.c @@ -24,7 +24,7 @@ #include <image.h> #include <zlib.h> #include <asm/byteorder.h> -#include <asm/addrspace.h> +#include <asm/arch/addrspace.h> #include <asm/io.h> #include <asm/setup.h> #include <asm/arch/clk.h>

For 100mbps operation, the ethernet controller requires a 25 MHz clock in MII mode, and a 50 MHz clock in RMII mode. If the clock is slower, disable 100mbps mode.

Signed-off-by: Gunnar Rangoy gunnar@rangoy.com Signed-off-by: Paul Driveklepp pauldriveklepp@gmail.com Signed-off-by: Olav Morken olavmrk@gmail.com --- drivers/net/macb.c | 23 ++++++++++++++++++++++- 1 files changed, 22 insertions(+), 1 deletions(-)

diff --git a/drivers/net/macb.c b/drivers/net/macb.c index 08bebf7..4fef374 100644 --- a/drivers/net/macb.c +++ b/drivers/net/macb.c @@ -296,8 +296,29 @@ static void macb_phy_reset(struct macb_device *macb) struct eth_device *netdev = &macb->netdev; int i; u16 status, adv; + int rmii_mode; + unsigned min_hz; + +#ifdef CONFIG_RMII + rmii_mode = 1; + min_hz = 50000000; +#else + rmii_mode = 0; + min_hz = 25000000; +#endif + + adv = ADVERTISE_CSMA | ADVERTISE_ALL ; + + if (get_hsb_clk_rate() < min_hz) { + printf("%s: HSB clock < %u MHz in %s mode - " + "disabling 100mbit.\n", netdev->name, min_hz / 1000000, + (rmii_mode ? "RMII" : "MII")); + + adv &= ~ADVERTISE_100FULL; + adv &= ~ADVERTISE_100HALF; + adv &= ~ADVERTISE_100BASE4; + }

- adv = ADVERTISE_CSMA | ADVERTISE_ALL; macb_mdio_write(macb, MII_ADVERTISE, adv); printf("%s: Starting autonegotiation...\n", netdev->name); macb_mdio_write(macb, MII_BMCR, (BMCR_ANENABLE

This patch adds support for searching through available PHY-addresses in the macb-driver. This is needed for the ATEVK1100 evaluation board, where the PHY-address will be initialized to either 1 or 7.

Signed-off-by: Gunnar Rangoy gunnar@rangoy.com Signed-off-by: Paul Driveklepp pauldriveklepp@gmail.com Signed-off-by: Olav Morken olavmrk@gmail.com --- drivers/net/macb.c | 28 ++++++++++++++++++++++++++++ 1 files changed, 28 insertions(+), 0 deletions(-)

diff --git a/drivers/net/macb.c b/drivers/net/macb.c index 4fef374..561669b 100644 --- a/drivers/net/macb.c +++ b/drivers/net/macb.c @@ -338,6 +338,27 @@ static void macb_phy_reset(struct macb_device *macb) netdev->name, status); }

+static int macb_phy_find(struct macb_device *macb) +{ + int i; + u16 phy_id; + + /* Search for PHY... */ + for (i = 0; i < 32; i++) { + macb->phy_addr=i; + phy_id = macb_mdio_read(macb, MII_PHYSID1); + if (phy_id != 0xffff) { + printf("%s: PHY present at %d\n", macb->netdev.name, i); + return 1; + } + } + + /* PHY isn't up to snuff */ + printf("%s: PHY not found", macb->netdev.name); + + return 0; +} + static int macb_phy_init(struct macb_device *macb) { struct eth_device *netdev = &macb->netdev; @@ -346,6 +367,13 @@ static int macb_phy_init(struct macb_device *macb) int media, speed, duplex; int i;

+ if (macb->phy_addr == 0xff) { + /* Auto-detect phy_addr */ + if (!macb_phy_find(macb)) { + return 0; + } + } + /* Check if the PHY is up to snuff... */ phy_id = macb_mdio_read(macb, MII_PHYSID1); if (phy_id == 0xffff) {

Due to a bug with the SDRAM-controller, running code from the SDRAM is impossible. This patch disables relocation of the command table on those chips.

Signed-off-by: Gunnar Rangoy gunnar@rangoy.com Signed-off-by: Paul Driveklepp pauldriveklepp@gmail.com Signed-off-by: Olav Morken olavmrk@gmail.com --- lib_avr32/board.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/lib_avr32/board.c b/lib_avr32/board.c index 216ff74..6afa8bd 100644 --- a/lib_avr32/board.c +++ b/lib_avr32/board.c @@ -294,8 +294,13 @@ void board_init_r(gd_t *new_gd, ulong dest_addr) cmdtp != &__u_boot_cmd_end; cmdtp++) { unsigned long addr;

+ /* We don't relocate code in the at32uc3a0xxx cpu yet due to + * SDRAM bug. See errata 41.4.6.1. + */ +#ifndef CONFIG_AT32UC addr = (unsigned long)cmdtp->cmd + gd->reloc_off; cmdtp->cmd = (typeof(cmdtp->cmd))addr; +#endif

addr = (unsigned long)cmdtp->name + gd->reloc_off; cmdtp->name = (typeof(cmdtp->name))addr;

This patch adds support for the AT32UC3A0xxx chips.

Signed-off-by: Gunnar Rangoy gunnar@rangoy.com Signed-off-by: Paul Driveklepp pauldriveklepp@gmail.com Signed-off-by: Olav Morken olavmrk@gmail.com --- cpu/at32uc/Makefile | 56 ++++ cpu/at32uc/at32uc3a0xxx/Makefile | 43 +++ cpu/at32uc/at32uc3a0xxx/clk.c | 85 ++++++ cpu/at32uc/at32uc3a0xxx/portmux.c | 154 +++++++++++ cpu/at32uc/at32uc3a0xxx/sm.h | 272 ++++++++++++++++++++ cpu/at32uc/cache.c | 34 +++ cpu/at32uc/config.mk | 22 ++ cpu/at32uc/cpu.c | 79 ++++++ cpu/at32uc/exception.c | 121 +++++++++ cpu/at32uc/flashc.c | 80 ++++++ cpu/at32uc/flashc.h | 67 +++++ cpu/at32uc/interrupts.c | 150 +++++++++++ cpu/at32uc/portmux-gpio.c | 108 ++++++++ cpu/at32uc/sdramc.c | 120 +++++++++ cpu/at32uc/sdramc.h | 137 ++++++++++ cpu/at32uc/start.S | 265 +++++++++++++++++++ include/asm-avr32/arch-at32uc3a0xxx/addrspace.h | 63 +++++ include/asm-avr32/arch-at32uc3a0xxx/cacheflush.h | 41 +++ .../asm-avr32/arch-at32uc3a0xxx/chip-features.h | 30 +++ include/asm-avr32/arch-at32uc3a0xxx/clk.h | 86 ++++++ include/asm-avr32/arch-at32uc3a0xxx/gpio.h | 44 ++++ include/asm-avr32/arch-at32uc3a0xxx/hmatrix.h | 47 ++++ include/asm-avr32/arch-at32uc3a0xxx/memory-map.h | 75 ++++++ include/asm-avr32/arch-at32uc3a0xxx/portmux.h | 80 ++++++ 24 files changed, 2259 insertions(+), 0 deletions(-) create mode 100644 cpu/at32uc/Makefile create mode 100644 cpu/at32uc/at32uc3a0xxx/Makefile create mode 100644 cpu/at32uc/at32uc3a0xxx/clk.c create mode 100644 cpu/at32uc/at32uc3a0xxx/portmux.c create mode 100644 cpu/at32uc/at32uc3a0xxx/sm.h create mode 100644 cpu/at32uc/cache.c create mode 100644 cpu/at32uc/config.mk create mode 100644 cpu/at32uc/cpu.c create mode 100644 cpu/at32uc/exception.c create mode 100644 cpu/at32uc/flashc.c create mode 100644 cpu/at32uc/flashc.h create mode 100644 cpu/at32uc/interrupts.c create mode 100644 cpu/at32uc/portmux-gpio.c create mode 100644 cpu/at32uc/sdramc.c create mode 100644 cpu/at32uc/sdramc.h create mode 100644 cpu/at32uc/start.S create mode 100644 include/asm-avr32/arch-at32uc3a0xxx/addrspace.h create mode 100644 include/asm-avr32/arch-at32uc3a0xxx/cacheflush.h create mode 100644 include/asm-avr32/arch-at32uc3a0xxx/chip-features.h create mode 100644 include/asm-avr32/arch-at32uc3a0xxx/clk.h create mode 100644 include/asm-avr32/arch-at32uc3a0xxx/gpio.h create mode 100644 include/asm-avr32/arch-at32uc3a0xxx/hmatrix.h create mode 100644 include/asm-avr32/arch-at32uc3a0xxx/memory-map.h create mode 100644 include/asm-avr32/arch-at32uc3a0xxx/portmux.h

diff --git a/cpu/at32uc/Makefile b/cpu/at32uc/Makefile new file mode 100644 index 0000000..cab9bdc --- /dev/null +++ b/cpu/at32uc/Makefile @@ -0,0 +1,56 @@ +# +# (C) Copyright 2000-2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# Copyright (C) 2005-2006 Atmel Corporation. +# +# 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 := $(obj)lib$(CPU).a + +START-y += start.o + +COBJS-y += cpu.o +COBJS-y += sdramc.o +COBJS-y += exception.o +COBJS-y += cache.o +COBJS-y += interrupts.o +COBJS-$(CONFIG_PORTMUX_GPIO) += portmux-gpio.o +COBJS-y += flashc.o + +SRCS := $(START-y:.o=.S) $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y)) +START := $(addprefix $(obj),$(START-y)) + +all: $(obj).depend $(START) $(LIB) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $^ + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/cpu/at32uc/at32uc3a0xxx/Makefile b/cpu/at32uc/at32uc3a0xxx/Makefile new file mode 100644 index 0000000..4942e56 --- /dev/null +++ b/cpu/at32uc/at32uc3a0xxx/Makefile @@ -0,0 +1,43 @@ +# +# Copyright (C) 2005-2006 Atmel Corporation +# +# 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 := $(obj)lib$(SOC).a + +COBJS := clk.o portmux.o +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) + +all: $(obj).depend $(LIB) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $^ + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/cpu/at32uc/at32uc3a0xxx/clk.c b/cpu/at32uc/at32uc3a0xxx/clk.c new file mode 100644 index 0000000..7c66b94 --- /dev/null +++ b/cpu/at32uc/at32uc3a0xxx/clk.c @@ -0,0 +1,85 @@ +/* + * Copyright (C) 2005-2008 Atmel Corporation + * + * 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/io.h> + +#include <asm/arch/clk.h> +#include <asm/arch/memory-map.h> + +#include "sm.h" + +void clk_init(void) +{ + uint32_t cksel; + + /* in case of soft resets, disable watchdog */ + sm_writel(WDT_CTRL, SM_BF(KEY, 0x55)); + sm_writel(WDT_CTRL, SM_BF(KEY, 0xaa)); + + /* osc0 is 12mhz (Mode 7)*/ + sm_writel(PM_OSCCTRL0, (SM_BF(MODE, 7)|SM_BF(STARTUP, 1))); + + /* enable osc0 */ + sm_writel(PM_MCCTRL, SM_BIT(OSC0EN)); + + /* wait for osc0 */ + while (!(sm_readl(PM_POSCSR) & SM_BIT(OSC0RDY))) ; + + /* run from osc0 */ + sm_writel(PM_MCCTRL, SM_BF(MCSEL, 1) | SM_BIT(OSC0EN)); + +#ifdef CONFIG_PLL + /* Initialize the PLL */ + sm_writel(PM_PLL0, (SM_BF(PLLCOUNT, CFG_PLL0_SUPPRESS_CYCLES) + | SM_BF(PLLMUL, CFG_PLL0_MUL - 1) + | SM_BF(PLLDIV, CFG_PLL0_DIV) + | SM_BF(PLLOPT, CFG_PLL0_OPT) + | SM_BF(PLLOSC, 0) + | SM_BIT(PLLEN) + | SM_BIT(ERRATA))); + + /* Wait for lock */ + while (!(sm_readl(PM_POSCSR) & SM_BIT(LOCK0))) ; +#endif + + /* We cannot write the CKSEL register before the ready-signal is set. */ + while (!(sm_readl(PM_POSCSR) & SM_BIT(CKRDY))) ; + + /* Set up clocks for the CPU and all peripheral buses */ + cksel = 0; + if (CFG_CLKDIV_CPU) + cksel |= SM_BIT(CPUDIV) | SM_BF(CPUSEL, CFG_CLKDIV_CPU - 1); + if (CFG_CLKDIV_PBA) + cksel |= SM_BIT(PBADIV) | SM_BF(PBASEL, CFG_CLKDIV_PBA - 1); + if (CFG_CLKDIV_PBB) + cksel |= SM_BIT(PBBDIV) | SM_BF(PBBSEL, CFG_CLKDIV_PBB - 1); + + + sm_writel(PM_CKSEL, cksel); + +#ifdef CONFIG_PLL + /* Use PLL0 as main clock */ + sm_writel(PM_MCCTRL, SM_BF(MCSEL, 2) | SM_BIT(OSC0EN)); +#endif + +} diff --git a/cpu/at32uc/at32uc3a0xxx/portmux.c b/cpu/at32uc/at32uc3a0xxx/portmux.c new file mode 100644 index 0000000..a796f22 --- /dev/null +++ b/cpu/at32uc/at32uc3a0xxx/portmux.c @@ -0,0 +1,154 @@ +/* + * Copyright (C) 2006, 2008 Atmel Corporation + * + * 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/io.h> + +#include <asm/arch/chip-features.h> +#include <asm/arch/memory-map.h> +#include <asm/arch/portmux.h> + +/* + * Lots of small functions here. We depend on --gc-sections getting + * rid of the ones we don't need. + */ +void portmux_enable_ebi(unsigned int bus_width, unsigned int addr_width, + unsigned long flags, unsigned long drive_strength) +{ + /* + * GPIO pins to be set to enable all EBI pins + * + * PIN 14-17 function C port0 mask 00 03 C0 00 + * PIN 25-28 function C port0 mask 1E 00 00 00 + * PIN 36 function C port1 mask 00 00 00 10 + * PIN 42-46 function C port1 mask 00 00 7C 00 + * PIN 48-49 function C port1 mask 00 03 00 00 + * PIN 61-63 function C port1 mask E0 00 00 00 + * PIN 70-95 function A port2 mask FF FF FF C0 + * PIN 96-109 function A port3 mask 00 00 3F FF + */ + + portmux_select_peripheral(PORTMUX_PORT(0), + 0x0003C000 | + 0x1E000000, PORTMUX_FUNC_C, 0); + portmux_select_peripheral(PORTMUX_PORT(1), + 0x00000010 | + 0x00007C00 | + 0x00030000 | + 0xE0000000, PORTMUX_FUNC_C, 0); + portmux_select_peripheral(PORTMUX_PORT(2), + 0xFFFFFFC0, PORTMUX_FUNC_A, 0); + portmux_select_peripheral(PORTMUX_PORT(3), + 0x00003FFF, PORTMUX_FUNC_A, 0); +} + +#ifdef AT32UC3A0xxx_CHIP_HAS_MACB +void portmux_enable_macb(unsigned long flags, unsigned long drive_strength) +{ + unsigned long portb_mask; + + portb_mask = (1 << 2) /* TXD0 */ + | (1 << 3) /* TXD1 */ + | (1 << 1) /* TXEN */ + | (1 << 0) /* TXCK */ + | (1 << 5) /* RXD0 */ + | (1 << 6) /* RXD1 */ + | (1 << 7) /* RXER */ + | (1 << 15) /* RXDV */ + | (1 << 8) /* MDC */ + | (1 << 9); /* MDIO */ + + if (flags & PORTMUX_MACB_MII) + portb_mask |= (1 << 16) /* COL */ + | (1 << 4) /* CRS */ + | (1 << 12) /* TXER */ + | (1 << 10) /* TXD2 */ + | (1 << 11) /* TXD3 */ + | (1 << 13) /* RXD2 */ + | (1 << 14) /* RXD3 */ + | (1 << 17); /* RXCK */ + + if (flags & PORTMUX_MACB_SPEED) + portb_mask |= (1 << 18);/* SPD */ + + /* REVISIT: Some pins are probably pure outputs */ + portmux_select_peripheral(PORTMUX_PORT_B, portb_mask, + PORTMUX_FUNC_A, PORTMUX_BUSKEEPER); +} + +#endif + + +#ifdef AT32UC3A0xxx_CHIP_HAS_SPI +void portmux_enable_spi0(unsigned long cs_mask, unsigned long drive_strength) +{ + unsigned long pin_mask; + + /* MOSI and SCK */ + portmux_select_peripheral(PORTMUX_PORT_A, (1 << 12) | (1 << 13), + PORTMUX_FUNC_A, 0); + /* MISO may float */ + portmux_select_peripheral(PORTMUX_PORT_A, 1 << 11, + PORTMUX_FUNC_A, PORTMUX_BUSKEEPER); + + /* Set up NPCSx as GPIO outputs, initially high */ + pin_mask = 0; + if (cs_mask & (1 << 0)) + pin_mask |= 1 << 10; + if (cs_mask & (1 << 1)) + pin_mask |= 1 << 8; + if (cs_mask & (1 << 2)) + pin_mask |= 1 << 9; + if (cs_mask & (1 << 3)) + pin_mask |= 1 << 7; + + portmux_select_gpio(PORTMUX_PORT_A, pin_mask, + PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH); +} + +void portmux_enable_spi1(unsigned long cs_mask, unsigned long drive_strength) +{ + unsigned long pin_mask; + + /* MOSI and SCK */ + portmux_select_peripheral(PORTMUX_PORT_B, (1 << 16) | (1 << 15), + PORTMUX_FUNC_B, 0); + /* MISO may float */ + portmux_select_peripheral(PORTMUX_PORT_B, 1 << 17, + PORTMUX_FUNC_B, PORTMUX_BUSKEEPER); + + /* Set up NPCSx as GPIO outputs, initially high */ + pin_mask = 0; + if (cs_mask & (1 << 0)) + pin_mask |= 1 << 14; + if (cs_mask & (1 << 1)) + pin_mask |= 1 << 18; + if (cs_mask & (1 << 2)) + pin_mask |= 1 << 19; + if (cs_mask & (1 << 3)) + pin_mask |= 1 << 20; + + portmux_select_gpio(PORTMUX_PORT_A, pin_mask, + PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH); +} +#endif + diff --git a/cpu/at32uc/at32uc3a0xxx/sm.h b/cpu/at32uc/at32uc3a0xxx/sm.h new file mode 100644 index 0000000..d232f91 --- /dev/null +++ b/cpu/at32uc/at32uc3a0xxx/sm.h @@ -0,0 +1,272 @@ +/* + * Register definitions for System Manager + */ +#ifndef __CPU_AT32UC_SM_H__ +#define __CPU_AT32UC_SM_H__ + +/* SM register offsets */ +/* PM starts at 0xFFFF0C00 */ +#define SM_PM_REGS_OFFSET 0x0c00 +#define SM_PM_MCCTRL (SM_PM_REGS_OFFSET + 0x0000) +#define SM_PM_CKSEL (SM_PM_REGS_OFFSET + 0x0004) +#define SM_PM_CPU_MASK (SM_PM_REGS_OFFSET + 0x0008) +#define SM_PM_HSB_MASK (SM_PM_REGS_OFFSET + 0x000c) +#define SM_PM_PBA_MASK (SM_PM_REGS_OFFSET + 0x0010) +#define SM_PM_PBB_MASK (SM_PM_REGS_OFFSET + 0x0014) +#define SM_PM_PLL0 (SM_PM_REGS_OFFSET + 0x0020) +#define SM_PM_PLL1 (SM_PM_REGS_OFFSET + 0x0024) +#define SM_PM_OSCCTRL0 (SM_PM_REGS_OFFSET + 0x0028) +#define SM_PM_OSCCTRL1 (SM_PM_REGS_OFFSET + 0x002c) +#define SM_PM_OSCCTRL32 (SM_PM_REGS_OFFSET + 0x0030) +#define SM_PM_IER (SM_PM_REGS_OFFSET + 0x0040) +#define SM_PM_IDR (SM_PM_REGS_OFFSET + 0x0044) +#define SM_PM_IMR (SM_PM_REGS_OFFSET + 0x0048) +#define SM_PM_ISR (SM_PM_REGS_OFFSET + 0x004c) +#define SM_PM_ICR (SM_PM_REGS_OFFSET + 0x0050) +#define SM_PM_POSCSR (SM_PM_REGS_OFFSET + 0x0054) +#define SM_PM_GCCTRL (SM_PM_REGS_OFFSET + 0x0060) +#define SM_PM_RCCR (SM_PM_REGS_OFFSET + 0x00c0) +#define SM_PM_BGCR (SM_PM_REGS_OFFSET + 0x00c4) +#define SM_PM_VREGCR (SM_PM_REGS_OFFSET + 0x00c8) +#define SM_PM_BOD (SM_PM_REGS_OFFSET + 0x00d0) +#define SM_PM_RCAUSE (SM_PM_REGS_OFFSET + 0x0140) +#define SM_RC_RCAUSE SM_PM_RCAUSE /* TODO: remove */ +/* RTC starts at 0xFFFF0D00 */ +#define SM_RTC_REGS_OFFSET 0x0d00 +#define SM_RTC_CTRL (SM_RTC_REGS_OFFSET + 0x0000) +#define SM_RTC_VAL (SM_RTC_REGS_OFFSET + 0x0004) +#define SM_RTC_TOP (SM_RTC_REGS_OFFSET + 0x0008) +#define SM_RTC_IER (SM_RTC_REGS_OFFSET + 0x0010) +#define SM_RTC_IDR (SM_RTC_REGS_OFFSET + 0x0014) +#define SM_RTC_IMR (SM_RTC_REGS_OFFSET + 0x0018) +#define SM_RTC_ISR (SM_RTC_REGS_OFFSET + 0x001c) +#define SM_RTC_ICR (SM_RTC_REGS_OFFSET + 0x0020) +/* WDT starts at 0xFFFF0D30 */ +#define SM_WDT_REGS_OFFSET 0x0d30 +#define SM_WDT_CTRL (SM_WDT_REGS_OFFSET + 0x0000) +#define SM_WDT_CLR (SM_WDT_REGS_OFFSET + 0x0004) +#define SM_WDT_EXT (SM_WDT_REGS_OFFSET + 0x0008) /* TODO: does not exist ? */ +/* EIC starts at offset 0xFFFF0D80 */ +/* TODO: change EIM to EIC */ +#define SM_EIC_REGS_OFFSET 0x0d80 +#define SM_EIM_IER (SM_EIC_REGS_OFFSET + 0x0000) +#define SM_EIM_IDR (SM_EIC_REGS_OFFSET + 0x0004) +#define SM_EIM_IMR (SM_EIC_REGS_OFFSET + 0x0008) +#define SM_EIM_ISR (SM_EIC_REGS_OFFSET + 0x000c) +#define SM_EIM_ICR (SM_EIC_REGS_OFFSET + 0x0010) +#define SM_EIM_MODE (SM_EIC_REGS_OFFSET + 0x0014) +#define SM_EIM_EDGE (SM_EIC_REGS_OFFSET + 0x0018) +#define SM_EIM_LEVEL (SM_EIC_REGS_OFFSET + 0x001c) +#define SM_EIM_FILTER (SM_EIC_REGS_OFFSET + 0x0020) +#define SM_EIM_TEST (SM_EIC_REGS_OFFSET + 0x0024) +#define SM_EIM_ASYNC (SM_EIC_REGS_OFFSET + 0x0028) +#define SM_EIM_SCAN (SM_EIC_REGS_OFFSET + 0x002c) +#define SM_EIM_EN (SM_EIC_REGS_OFFSET + 0x0030) +#define SM_EIM_DIS (SM_EIC_REGS_OFFSET + 0x0034) +#define SM_EIM_CTRL (SM_EIC_REGS_OFFSET + 0x0038) + +/* Bitfields used in many registers */ +#define SM_EN_OFFSET 0 +#define SM_EN_SIZE 1 + +/* Bitfields in PM_MCCTRL */ +#define SM_MCSEL_OFFSET 0 +#define SM_MCSEL_SIZE 2 +#define SM_OSC0EN_OFFSET 2 +#define SM_OSC0EN_SIZE 1 +#define SM_OSC1EN_OFFSET 3 +#define SM_OSC1EN_SIZE 1 + +/* Bitfields in PM_CKSEL */ +#define SM_CPUSEL_OFFSET 0 +#define SM_CPUSEL_SIZE 3 +#define SM_CPUDIV_OFFSET 7 +#define SM_CPUDIV_SIZE 1 +#define SM_HSBSEL_OFFSET 8 +#define SM_HSBSEL_SIZE 3 +#define SM_HSBDIV_OFFSET 15 +#define SM_HSBDIV_SIZE 1 +#define SM_PBASEL_OFFSET 16 +#define SM_PBASEL_SIZE 3 +#define SM_PBADIV_OFFSET 23 +#define SM_PBADIV_SIZE 1 +#define SM_PBBSEL_OFFSET 24 +#define SM_PBBSEL_SIZE 3 +#define SM_PBBDIV_OFFSET 31 +#define SM_PBBDIV_SIZE 1 + +/* Bitfields in PM_PLL0 */ +#define SM_PLLEN_OFFSET 0 +#define SM_PLLEN_SIZE 1 +#define SM_PLLOSC_OFFSET 1 +#define SM_PLLOSC_SIZE 1 +#define SM_PLLOPT_OFFSET 2 +#define SM_PLLOPT_SIZE 3 +#define SM_ERRATA_OFFSET 7 +#define SM_ERRATA_SIZE 1 +#define SM_PLLDIV_OFFSET 8 +#define SM_PLLDIV_SIZE 4 +#define SM_PLLMUL_OFFSET 16 +#define SM_PLLMUL_SIZE 4 +#define SM_PLLCOUNT_OFFSET 24 +#define SM_PLLCOUNT_SIZE 6 +#define SM_PLLTEST_OFFSET 31 /* TODO: remove */ +#define SM_PLLTEST_SIZE 1 /* TODO: remove */ + +/* Bitfields in PM_OSCCTRL0,1 */ +#define SM_MODE_OFFSET 0 +#define SM_MODE_SIZE 3 +#define SM_STARTUP_OFFSET 8 +#define SM_STARTUP_SIZE 3 + +/* Bitfields in PM_VCTRL */ +#define SM_VAUTO_OFFSET 0 /* TODO: remove */ +#define SM_VAUTO_SIZE 1 /* TODO: remove */ +#define SM_PM_VCTRL_VAL_OFFSET 8 /* TODO: remove */ +#define SM_PM_VCTRL_VAL_SIZE 7 /* TODO: remove */ + +/* Bitfields in PM_VMREF */ +#define SM_REFSEL_OFFSET 0 /* TODO: remove */ +#define SM_REFSEL_SIZE 4 /* TODO: remove */ + +/* Bitfields in PM_VMV */ +#define SM_PM_VMV_VAL_OFFSET 0 /* TODO: remove */ +#define SM_PM_VMV_VAL_SIZE 8 /* TODO: remove */ + +/* Bitfields in PM_IER/IDR/IMR/ISR/ICR, POSCSR */ +#define SM_LOCK0_OFFSET 0 +#define SM_LOCK0_SIZE 1 +#define SM_LOCK1_OFFSET 1 +#define SM_LOCK1_SIZE 1 +#define SM_WAKE_OFFSET 2 /* TODO: remove */ +#define SM_WAKE_SIZE 1 /* TODO: remove */ +#define SM_VOK_OFFSET 3 /* TODO: remove */ +#define SM_VOK_SIZE 1 /* TODO: remove */ +#define SM_VMRDY_OFFSET 4 /* TODO: remove */ +#define SM_VMRDY_SIZE 1 /* TODO: remove */ +#define SM_CKRDY_OFFSET 5 +#define SM_CKRDY_SIZE 1 +#define SM_MSKRDY_OFFSET 6 +#define SM_MSKRDY_SIZE 1 +#define SM_OSC0RDY_OFFSET 7 +#define SM_OSC0RDY_SIZE 1 +#define SM_OSC1RDY_OFFSET 8 +#define SM_OSC1RDY_SIZE 1 +#define SM_OSC32RDY_OFFSET 9 +#define SM_OSC32RDY_SIZE 1 +#define SM_BODDET_OFFSET 16 +#define SM_BODDET_SIZE 1 + +/* Bitfields in PM_GCCTRL*/ +#define SM_OSCSEL_OFFSET 0 +#define SM_OSCSEL_SIZE 1 +#define SM_PLLSEL_OFFSET 1 +#define SM_PLLSEL_SIZE 1 +#define SM_CEN_OFFSET 2 +#define SM_CEN_SIZE 1 +#define SM_DIVEN_OFFSET 4 +#define SM_DIVEN_SIZE 1 +#define SM_DIV_OFFSET 8 +#define SM_DIV_SIZE 8 + +/* Bitfields in PM_RCAUSE */ +#define SM_POR_OFFSET 0 +#define SM_POR_SIZE 1 +#define SM_BOD_OFFSET 1 +#define SM_BOD_SIZE 1 +#define SM_EXT_OFFSET 2 +#define SM_EXT_SIZE 1 +#define SM_WDT_OFFSET 3 +#define SM_WDT_SIZE 1 +#define SM_JTAG_OFFSET 4 +#define SM_JTAG_SIZE 1 +#define SM_SERP_OFFSET 5 /* TODO: remove */ +#define SM_SERP_SIZE 1 /* TODO: remove */ +#define SM_CPUERR_OFFSET 7 +#define SM_CPUERR_SIZE 1 +#define SM_OCDRST_OFFSET 8 +#define SM_OCDRST_SIZE 1 +#define SM_JTAGHARD_OFFSET 9 +#define SM_JTAGHARD_SIZE 1 + + +/* Bitfields in RTC_CTRL */ +#define SM_PCLR_OFFSET 1 +#define SM_PCLR_SIZE 1 +#define SM_WAKE_EN_OFFSET 2 +#define SM_WAKE_EN_SIZE 1 +#define SM_CLK32_OFFSET 3 +#define SM_CLK32_SIZE 1 +#define SM_BUSY_OFFSET 4 +#define SM_BUSY_SIZE 1 +#define SM_RTC_CTRL_PSEL_OFFSET 8 +#define SM_RTC_CTRL_PSEL_SIZE 4 +#define SM_CLKEN_OFFSET 16 +#define SM_CLKEN_SIZE 1 + +/* Bitfields in RTC_VAL */ +#define SM_RTC_VAL_VAL_OFFSET 0 +#define SM_RTC_VAL_VAL_SIZE 32 + +/* Bitfields in RTC_TOP */ +#define SM_RTC_TOP_VAL_OFFSET 0 +#define SM_RTC_TOP_VAL_SIZE 32 + +/* Bitfields in RTC_ICR */ +#define SM_TOPI_OFFSET 0 +#define SM_TOPI_SIZE 1 + + +/* Bitfields in WDT_CTRL */ +#define SM_WDT_CTRL_PSEL_OFFSET 8 +#define SM_WDT_CTRL_PSEL_SIZE 5 +#define SM_KEY_OFFSET 24 +#define SM_KEY_SIZE 8 + + +/* Bitfields in EIC IER/IDR/IMR/ISR/ICR and MODE/EDGE/LEVEL/FILTER/ASYNC */ +#define SM_INT0_OFFSET 0 +#define SM_INT0_SIZE 1 +#define SM_INT1_OFFSET 1 +#define SM_INT1_SIZE 1 +#define SM_INT2_OFFSET 2 +#define SM_INT2_SIZE 1 +#define SM_INT3_OFFSET 3 +#define SM_INT3_SIZE 1 +#define SM_INT4_OFFSET 4 +#define SM_INT4_SIZE 1 +#define SM_INT5_OFFSET 5 +#define SM_INT5_SIZE 1 +#define SM_INT6_OFFSET 6 +#define SM_INT6_SIZE 1 +#define SM_INT7_OFFSET 7 +#define SM_INT7_SIZE 1 +#define SM_NMI_OFFSET 8 +#define SM_NMI_SIZE 1 + +/* Bitfields in EIM_TEST */ +#define SM_TESTEN_OFFSET 31 +#define SM_TESTEN_SIZE 1 + + +/* Bit manipulation macros */ +#define SM_BIT(name) \ + (1 << SM_##name##_OFFSET) +#define SM_BF(name,value) \ + (((value) & ((1 << SM_##name##_SIZE) - 1)) \ + << SM_##name##_OFFSET) +#define SM_BFEXT(name,value) \ + (((value) >> SM_##name##_OFFSET) \ + & ((1 << SM_##name##_SIZE) - 1)) +#define SM_BFINS(name,value,old) \ + (((old) & ~(((1 << SM_##name##_SIZE) - 1) \ + << SM_##name##_OFFSET)) \ + | SM_BF(name,value)) + +/* Register access macros */ +#define sm_readl(reg) \ + readl((void *)SM_BASE + SM_##reg) +#define sm_writel(reg,value) \ + writel((value), (void *)SM_BASE + SM_##reg) + +#endif /* __CPU_AT32UC_SM_H__ */ diff --git a/cpu/at32uc/cache.c b/cpu/at32uc/cache.c new file mode 100644 index 0000000..06fa12c --- /dev/null +++ b/cpu/at32uc/cache.c @@ -0,0 +1,34 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * 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> + +/* + * This is called after loading something into memory. We need to + * make sure that everything that was loaded is actually written to + * RAM, and that the icache will look for it. Cleaning the dcache and + * invalidating the icache will do the trick. + */ +void flush_cache (unsigned long start_addr, unsigned long size) +{ + /* No cache to clean in the at32uc3. */ +} diff --git a/cpu/at32uc/config.mk b/cpu/at32uc/config.mk new file mode 100644 index 0000000..1a6eaa8 --- /dev/null +++ b/cpu/at32uc/config.mk @@ -0,0 +1,22 @@ +# +# Copyright (C) 2005-2006 Atmel Corporation +# +# 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 +# +PLATFORM_RELFLAGS += -mcpu=uc3a0512es diff --git a/cpu/at32uc/cpu.c b/cpu/at32uc/cpu.c new file mode 100644 index 0000000..4a95427 --- /dev/null +++ b/cpu/at32uc/cpu.c @@ -0,0 +1,79 @@ +/* + * Copyright (C) 2005-2006 Atmel Corporation + * + * 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 <command.h> + +#include <asm/io.h> +#include <asm/sections.h> +#include <asm/sysreg.h> + +#include <asm/arch/clk.h> +#include <asm/arch/memory-map.h> + +/* Sanity checks */ +#if ((CFG_CLKDIV_CPU > CFG_CLKDIV_PBA) \ + || (CFG_CLKDIV_CPU > CFG_CLKDIV_PBB)) +# error Constraint fCPU >= fPB{A,B} violated +#endif +#if defined(CONFIG_PLL) && ((CFG_PLL0_MUL < 1) || (CFG_PLL0_DIV < 0)) +# error Invalid PLL multiplier and/or divider +#endif + +DECLARE_GLOBAL_DATA_PTR; + +int cpu_init(void) +{ + extern void _evba(void); + + gd->cpu_hz = CFG_OSC0_HZ; + + clk_init(); + + /* Update the CPU speed according to the PLL configuration */ + gd->cpu_hz = get_cpu_clk_rate(); + + /* Set up the exception handler table and enable exceptions */ + sysreg_write(EVBA, (unsigned long)&_evba); + asm volatile("csrf %0" : : "i"(SYSREG_EM_OFFSET)); + + if(gclk_init) + gclk_init(); + + return 0; +} + +void prepare_to_boot(void) +{ + /* No caches to flush on this cpu. */ +} + +int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + /* This will reset the CPU core, caches, MMU and all internal busses */ + __builtin_mtdr(8, 1 << 13); /* set DC:DBE */ + __builtin_mtdr(8, 1 << 30); /* set DC:RES */ + + /* Flush the pipeline before we declare it a failure */ + asm volatile("sub pc, pc, -4"); + + return -1; +} diff --git a/cpu/at32uc/exception.c b/cpu/at32uc/exception.c new file mode 100644 index 0000000..dc9c300 --- /dev/null +++ b/cpu/at32uc/exception.c @@ -0,0 +1,121 @@ +/* + * Copyright (C) 2005-2006 Atmel Corporation + * + * 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/sysreg.h> +#include <asm/ptrace.h> + +DECLARE_GLOBAL_DATA_PTR; + +static const char * const cpu_modes[8] = { + "Application", "Supervisor", "Interrupt level 0", "Interrupt level 1", + "Interrupt level 2", "Interrupt level 3", "Exception", "NMI" +}; + +static void dump_mem(const char *str, unsigned long bottom, unsigned long top) +{ + unsigned long p; + int i; + + printf("%s(0x%08lx to 0x%08lx)\n", str, bottom, top); + + for (p = bottom & ~31; p < top; ) { + printf("%04lx: ", p & 0xffff); + + for (i = 0; i < 8; i++, p += 4) { + unsigned int val; + + if (p < bottom || p >= top) + printf(" "); + else { + val = *(unsigned long *)p; + printf("%08x ", val); + } + } + printf("\n"); + } +} + +void do_unknown_exception(unsigned int ecr, struct pt_regs *regs) +{ + unsigned int mode; + + printf("\n *** Unhandled exception %u at PC=0x%08lx\n", ecr, regs->pc); + + switch (ecr) { + case ECR_BUS_ERROR_WRITE: + case ECR_BUS_ERROR_READ: + printf("Bus error at address 0x%08lx\n", + sysreg_read(BEAR)); + break; + case ECR_TLB_MULTIPLE: + case ECR_ADDR_ALIGN_X: + case ECR_PROTECTION_X: + case ECR_ADDR_ALIGN_R: + case ECR_ADDR_ALIGN_W: + case ECR_PROTECTION_R: + case ECR_PROTECTION_W: + case ECR_DTLB_MODIFIED: + case ECR_TLB_MISS_X: + case ECR_TLB_MISS_R: + case ECR_TLB_MISS_W: + printf("MMU exception at address 0x%08lx\n", + sysreg_read(TLBEAR)); + break; + } + + printf(" pc: %08lx lr: %08lx sp: %08lx r12: %08lx\n", + regs->pc, regs->lr, regs->sp, regs->r12); + printf(" r11: %08lx r10: %08lx r9: %08lx r8: %08lx\n", + regs->r11, regs->r10, regs->r9, regs->r8); + printf(" r7: %08lx r6: %08lx r5: %08lx r4: %08lx\n", + regs->r7, regs->r6, regs->r5, regs->r4); + printf(" r3: %08lx r2: %08lx r1: %08lx r0: %08lx\n", + regs->r3, regs->r2, regs->r1, regs->r0); + printf("Flags: %c%c%c%c%c\n", + regs->sr & SR_Q ? 'Q' : 'q', + regs->sr & SR_V ? 'V' : 'v', + regs->sr & SR_N ? 'N' : 'n', + regs->sr & SR_Z ? 'Z' : 'z', + regs->sr & SR_C ? 'C' : 'c'); + printf("Mode bits: %c%c%c%c%c%c%c%c%c\n", + regs->sr & SR_H ? 'H' : 'h', + regs->sr & SR_R ? 'R' : 'r', + regs->sr & SR_J ? 'J' : 'j', + regs->sr & SR_EM ? 'E' : 'e', + regs->sr & SR_I3M ? '3' : '.', + regs->sr & SR_I2M ? '2' : '.', + regs->sr & SR_I1M ? '1' : '.', + regs->sr & SR_I0M ? '0' : '.', + regs->sr & SR_GM ? 'G' : 'g'); + mode = (regs->sr >> SYSREG_M0_OFFSET) & 7; + printf("CPU Mode: %s\n", cpu_modes[mode]); + + /* Avoid exception loops */ + if (regs->sp < (gd->stack_end - CONFIG_STACKSIZE) + || regs->sp >= gd->stack_end) + printf("\nStack pointer seems bogus, won't do stack dump\n"); + else + dump_mem("\nStack: ", regs->sp, gd->stack_end); + + panic("Unhandled exception\n"); +} diff --git a/cpu/at32uc/flashc.c b/cpu/at32uc/flashc.c new file mode 100644 index 0000000..f33a4bb --- /dev/null +++ b/cpu/at32uc/flashc.c @@ -0,0 +1,80 @@ +/* + * Copyright (C) 2005-2006 Atmel Corporation + * + * 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/io.h> +#include <asm/arch/memory-map.h> +#include "flashc.h" + +DECLARE_GLOBAL_DATA_PTR; + +/* Flash sizes in KB as returned by FSZ bitfield in FSR */ +const unsigned long flash_sizes[8] = { + 32, + 64, + 128, + 256, + 384, + 512, + 768, + 1024 +}; + +flash_info_t flash_info[1]; + +unsigned long flash_init(void) +{ + unsigned long fsz; + unsigned long size; + + fsz = FLASHC_BFEXT(FSZ, flashc_readl(FSR)); + + size = flash_sizes[fsz] * 1024; + + flash_info[0].size = size; + + /* Currently, all interflash have pages which are 128 words. */ + flash_info[0].sector_count = size / (128*4); + + return size; +} + +void flash_print_info(flash_info_t *info) +{ + printf("Flash: Vendor ID: 0x%02lx, Product ID: 0x%02lx\n", + info->flash_id >> 16, info->flash_id & 0xffff); + printf("Size: %ld MB in %d sectors\n", + info->size >> 10, info->sector_count); +} + +int flash_erase(flash_info_t *info, int s_first, int s_last) +{ + /* TODO */ + return ERR_OK; +} + +int write_buff(flash_info_t *info, uchar *src, ulong addr, ulong count) +{ + /* TODO */ + return ERR_OK; +} + diff --git a/cpu/at32uc/flashc.h b/cpu/at32uc/flashc.h new file mode 100644 index 0000000..23618bc --- /dev/null +++ b/cpu/at32uc/flashc.h @@ -0,0 +1,67 @@ +/* + * Register definitions for flash controller + */ +#ifndef __ASM_AVR32_FLASHC_H__ +#define __ASM_AVR32_FLASHC_H__ + +/* FLASHC register offsets */ +#define FLASHC_FCR 0x0000 +#define FLASHC_FCMD 0x0004 +#define FLASHC_FSR 0x0008 +#define FLASHC_FGPFRHI 0x000c +#define FLASHC_FGPFRLO 0x0010 + +/* Bitfields in FCR and FSR */ +#define FLASHC_FRDY_OFFSET 0 +#define FLASHC_FRDY_SIZE 1 +#define FLASHC_LOCKE_OFFSET 2 +#define FLASHC_LOCKE_SIZE 1 +#define FLASHC_PROGE_OFFSET 3 +#define FLASHC_PROGE_SIZE 1 + +/* Bitfields in FCR */ +#define FLASHC_FWS_OFFSET 6 +#define FLASHC_FWS_SIZE 1 +#define FLASHC_SASD_OFFSET 8 +#define FLASHC_SASD_SIZE 1 + +/* Bitfields in FCMD */ +#define FLASHC_CMD_OFFSET 0 +#define FLASHC_CMD_SIZE 6 +#define FLASHC_PAGEN_OFFSET 8 +#define FLASHC_PAGEN_SIZE 16 +#define FLASHC_KEY_OFFSET 24 +#define FLASHC_KEY_SIZE 8 + +/* Bitfields in FSR */ +#define FLASHC_SECURITY_OFFSET 4 +#define FLASHC_SECURITY_SIZE 1 +#define FLASHC_QPRR_OFFSET 5 +#define FLASHC_QPRR_SIZE 1 +#define FLASHC_FSZ_OFFSET 13 +#define FLASHC_FSZ_SIZE 3 +#define FLASHC_LOCK_OFFSET 16 +#define FLASHC_LOCK_SIZE 16 + + +/* Bit manipulation macros */ +#define FLASHC_BIT(name) \ + (1 << FLASHC_##name##_OFFSET) +#define FLASHC_BF(name,value) \ + (((value) & ((1 << FLASHC_##name##_SIZE) - 1)) \ + << FLASHC_##name##_OFFSET) +#define FLASHC_BFEXT(name,value) \ + (((value) >> FLASHC_##name##_OFFSET) \ + & ((1 << FLASHC_##name##_SIZE) - 1)) +#define FLASHC_BFINS(name,value,old) \ + (((old) & ~(((1 << FLASHC_##name##_SIZE) - 1) \ + << FLASHC_##name##_OFFSET)) \ + | FLASHC_BF(name,value)) + +/* Register access macros */ +#define flashc_readl(reg) \ + readl((void *)FLASHC_BASE + FLASHC_##reg) +#define flashc_writel(reg,value) \ + writel((value), (void *)FLASHC_BASE + FLASHC_##reg) + +#endif /* __ASM_AVR32_FLASHC_H__ */ diff --git a/cpu/at32uc/interrupts.c b/cpu/at32uc/interrupts.c new file mode 100644 index 0000000..160838e --- /dev/null +++ b/cpu/at32uc/interrupts.c @@ -0,0 +1,150 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * 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 <div64.h> + +#include <asm/errno.h> +#include <asm/io.h> +#include <asm/processor.h> +#include <asm/sysreg.h> + +#include <asm/arch/memory-map.h> + +#define HANDLER_MASK 0x00ffffff +#define INTLEV_SHIFT 30 +#define INTLEV_MASK 0x00000003 + +DECLARE_GLOBAL_DATA_PTR; + +/* Incremented whenever COUNT reaches 0xffffffff by timer_interrupt_handler */ +volatile unsigned long timer_overflow; + +/* + * Instead of dividing by get_tbclk(), multiply by this constant and + * right-shift the result by 32 bits. + */ +static unsigned long tb_factor; + +unsigned long get_tbclk(void) +{ + return gd->cpu_hz; +} + +unsigned long long get_ticks(void) +{ + unsigned long lo, hi_now, hi_prev; + + do { + hi_prev = timer_overflow; + lo = sysreg_read(COUNT); + hi_now = timer_overflow; + } while (hi_prev != hi_now); + + return ((unsigned long long)hi_now << 32) | lo; +} + +void reset_timer(void) +{ + sysreg_write(COUNT, 0); + cpu_sync_pipeline(); /* process any pending interrupts */ + timer_overflow = 0; +} + +unsigned long get_timer(unsigned long base) +{ + u64 now = get_ticks(); + + now *= tb_factor; + return (unsigned long)(now >> 32) - base; +} + +void set_timer(unsigned long t) +{ + unsigned long long ticks = t; + unsigned long lo, hi, hi_new; + + ticks = (ticks * get_tbclk()) / CFG_HZ; + hi = ticks >> 32; + lo = ticks & 0xffffffffUL; + + do { + timer_overflow = hi; + sysreg_write(COUNT, lo); + hi_new = timer_overflow; + } while (hi_new != hi); +} + +/* + * For short delays only. It will overflow after a few seconds. + */ +void udelay(unsigned long usec) +{ + unsigned long cycles; + unsigned long base; + unsigned long now; + + base = sysreg_read(COUNT); + cycles = ((usec * (get_tbclk() / 10000)) + 50) / 100; + + do { + now = sysreg_read(COUNT); + } while ((now - base) < cycles); +} + +static int set_interrupt_handler(unsigned int nr, void (*handler)(void), + unsigned int priority) +{ + extern void _evba(void); + unsigned long intpr; + unsigned long handler_addr = (unsigned long)handler; + + handler_addr -= (unsigned long)&_evba; + + if ((handler_addr & HANDLER_MASK) != handler_addr + || (priority & INTLEV_MASK) != priority) + return -EINVAL; + + intpr = (handler_addr & HANDLER_MASK); + intpr |= (priority & INTLEV_MASK) << INTLEV_SHIFT; + writel(intpr, (void *)INTC_BASE + 4 * nr); + + return 0; +} + +void timer_init(void) +{ + extern void timer_interrupt_handler(void); + u64 tmp; + + sysreg_write(COUNT, 0); + + tmp = (u64)CFG_HZ << 32; + tmp += gd->cpu_hz / 2; + do_div(tmp, gd->cpu_hz); + tb_factor = (u32)tmp; + + if (set_interrupt_handler(0, &timer_interrupt_handler, 3)) + return; + + /* For all practical purposes, this gives us an overflow interrupt */ + sysreg_write(COMPARE, 0xffffffff); +} diff --git a/cpu/at32uc/portmux-gpio.c b/cpu/at32uc/portmux-gpio.c new file mode 100644 index 0000000..8ed5659 --- /dev/null +++ b/cpu/at32uc/portmux-gpio.c @@ -0,0 +1,108 @@ +/* + * Copyright (C) 2008 Atmel Corporation + * + * 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/io.h> +#include <asm/arch/memory-map.h> +#include <asm/arch-common/portmux-gpio.h> + + +void portmux_select_peripheral(void *port, unsigned long pin_mask, + enum portmux_function func, unsigned long flags) +{ + /* Both pull-up and pull-down set means buskeeper */ + if (flags & PORTMUX_PULL_DOWN) + gpio_writel(port, PDERS, pin_mask); + else + gpio_writel(port, PDERC, pin_mask); + if (flags & PORTMUX_PULL_UP) + gpio_writel(port, PUERS, pin_mask); + else + gpio_writel(port, PUERC, pin_mask); + + /* Select drive strength */ + if (flags & PORTMUX_DRIVE_LOW) + gpio_writel(port, ODCR0S, pin_mask); + else + gpio_writel(port, ODCR0C, pin_mask); + if (flags & PORTMUX_DRIVE_HIGH) + gpio_writel(port, ODCR1S, pin_mask); + else + gpio_writel(port, ODCR1C, pin_mask); + + /* Select function */ + if (func & PORTMUX_FUNC_B) + gpio_writel(port, PMR0S, pin_mask); + else + gpio_writel(port, PMR0C, pin_mask); + if (func & PORTMUX_FUNC_C) + gpio_writel(port, PMR1S, pin_mask); + else + gpio_writel(port, PMR1C, pin_mask); + + /* Disable GPIO (i.e. enable peripheral) */ + gpio_writel(port, GPERC, pin_mask); +} + +void portmux_select_gpio(void *port, unsigned long pin_mask, + unsigned long flags) +{ + /* Both pull-up and pull-down set means buskeeper */ + if (flags & PORTMUX_PULL_DOWN) + gpio_writel(port, PDERS, pin_mask); + else + gpio_writel(port, PDERC, pin_mask); + if (flags & PORTMUX_PULL_UP) + gpio_writel(port, PUERS, pin_mask); + else + gpio_writel(port, PUERC, pin_mask); + + /* Enable open-drain mode if requested */ + if (flags & PORTMUX_OPEN_DRAIN) + gpio_writel(port, ODMERS, pin_mask); + else + gpio_writel(port, ODMERC, pin_mask); + + /* Select drive strength */ + if (flags & PORTMUX_DRIVE_LOW) + gpio_writel(port, ODCR0S, pin_mask); + else + gpio_writel(port, ODCR0C, pin_mask); + if (flags & PORTMUX_DRIVE_HIGH) + gpio_writel(port, ODCR1S, pin_mask); + else + gpio_writel(port, ODCR1C, pin_mask); + + /* Select direction and initial pin state */ + if (flags & PORTMUX_DIR_OUTPUT) { + if (flags & PORTMUX_INIT_HIGH) + gpio_writel(port, OVRS, pin_mask); + else + gpio_writel(port, OVRC, pin_mask); + gpio_writel(port, ODERS, pin_mask); + } else { + gpio_writel(port, ODERC, pin_mask); + } + + /* Enable GPIO */ + gpio_writel(port, GPERS, pin_mask); +} diff --git a/cpu/at32uc/sdramc.c b/cpu/at32uc/sdramc.c new file mode 100644 index 0000000..2ed0066 --- /dev/null +++ b/cpu/at32uc/sdramc.c @@ -0,0 +1,120 @@ +/* + * Copyright (C) 2005-2006 Atmel Corporation + * + * 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> + +#ifdef CFG_SDRAMC +#include <asm/io.h> +#include <asm/sdram.h> + +#include <asm/arch/clk.h> +#include <asm/arch/memory-map.h> + +#include "sdramc.h" + +unsigned long sdram_init(void *sdram_base, const struct sdram_config *config) +{ + unsigned long sdram_size; + uint32_t cfgreg; + unsigned int i; + + cfgreg = (SDRAMC_BF(NC, config->col_bits - 8) + | SDRAMC_BF(NR, config->row_bits - 11) + | SDRAMC_BF(NB, config->bank_bits - 1) + | SDRAMC_BF(CAS, config->cas) + | SDRAMC_BF(TWR, config->twr) + | SDRAMC_BF(TRC, config->trc) + | SDRAMC_BF(TRP, config->trp) + | SDRAMC_BF(TRCD, config->trcd) + | SDRAMC_BF(TRAS, config->tras) + | SDRAMC_BF(TXSR, config->txsr)); + + if (config->data_bits == SDRAM_DATA_16BIT) + cfgreg |= SDRAMC_BIT(DBW); + + sdramc_writel(CR, cfgreg); + + /* Send a NOP to turn on the clock (necessary on some chips) */ + sdramc_writel(MR, SDRAMC_MODE_NOP); + sdramc_readl(MR); + writel(0, sdram_base); + + /* + * Initialization sequence for SDRAM, from the data sheet: + * + * 1. A minimum pause of 200 us is provided to precede any + * signal toggle. + */ + udelay(200); + + /* + * 2. A Precharge All command is issued to the SDRAM + */ + sdramc_writel(MR, SDRAMC_MODE_BANKS_PRECHARGE); + sdramc_readl(MR); + writel(0, sdram_base); + + /* + * 3. Eight auto-refresh (CBR) cycles are provided + */ + sdramc_writel(MR, SDRAMC_MODE_AUTO_REFRESH); + sdramc_readl(MR); + for (i = 0; i < 8; i++) + writel(0, sdram_base); + + /* + * 4. A mode register set (MRS) cycle is issued to program + * SDRAM parameters, in particular CAS latency and burst + * length. + * + * The address will be chosen by the SDRAMC automatically; we + * just have to make sure BA[1:0] are set to 0. + */ + sdramc_writel(MR, SDRAMC_MODE_LOAD_MODE); + sdramc_readl(MR); + writel(0, sdram_base); + + /* + * 5. The application must go into Normal Mode, setting Mode + * to 0 in the Mode Register and performing a write access + * at any location in the SDRAM. + */ + sdramc_writel(MR, SDRAMC_MODE_NORMAL); + sdramc_readl(MR); + writel(0, sdram_base); + + /* + * 6. Write refresh rate into SDRAMC refresh timer count + * register (refresh rate = timing between refresh cycles). + */ + sdramc_writel(TR, config->refresh_period); + + if (config->data_bits == SDRAM_DATA_16BIT) + sdram_size = 1 << (config->row_bits + config->col_bits + + config->bank_bits + 1); + else + sdram_size = 1 << (config->row_bits + config->col_bits + + config->bank_bits + 2); + + return sdram_size; +} + +#endif /* CFG_SDRAMC */ diff --git a/cpu/at32uc/sdramc.h b/cpu/at32uc/sdramc.h new file mode 100644 index 0000000..8154415 --- /dev/null +++ b/cpu/at32uc/sdramc.h @@ -0,0 +1,137 @@ +/* + * Register definitions for SDRAM Controller + */ +#ifndef __ASM_AVR32_SDRAMC_H__ +#define __ASM_AVR32_SDRAMC_H__ + +/* SDRAMC register offsets */ +#define SDRAMC_MR 0x0000 +#define SDRAMC_TR 0x0004 +#define SDRAMC_CR 0x0008 +#define SDRAMC_HSR 0x000c +#define SDRAMC_LPR 0x0010 +#define SDRAMC_IER 0x0014 +#define SDRAMC_IDR 0x0018 +#define SDRAMC_IMR 0x001c +#define SDRAMC_ISR 0x0020 +#define SDRAMC_MDR 0x0024 + +/* Bitfields in MR */ +#define SDRAMC_MODE_OFFSET 0 +#define SDRAMC_MODE_SIZE 3 + +/* Bitfields in TR */ +#define SDRAMC_COUNT_OFFSET 0 +#define SDRAMC_COUNT_SIZE 12 + +/* Bitfields in CR */ +#define SDRAMC_NC_OFFSET 0 +#define SDRAMC_NC_SIZE 2 +#define SDRAMC_NR_OFFSET 2 +#define SDRAMC_NR_SIZE 2 +#define SDRAMC_NB_OFFSET 4 +#define SDRAMC_NB_SIZE 1 +#define SDRAMC_CAS_OFFSET 5 +#define SDRAMC_CAS_SIZE 2 +#define SDRAMC_DBW_OFFSET 7 +#define SDRAMC_DBW_SIZE 1 +#define SDRAMC_TWR_OFFSET 8 +#define SDRAMC_TWR_SIZE 4 +#define SDRAMC_TRC_OFFSET 12 +#define SDRAMC_TRC_SIZE 4 +#define SDRAMC_TRP_OFFSET 16 +#define SDRAMC_TRP_SIZE 4 +#define SDRAMC_TRCD_OFFSET 20 +#define SDRAMC_TRCD_SIZE 4 +#define SDRAMC_TRAS_OFFSET 24 +#define SDRAMC_TRAS_SIZE 4 +#define SDRAMC_TXSR_OFFSET 28 +#define SDRAMC_TXSR_SIZE 4 + +/* Bitfields in HSR */ +#define SDRAMC_DA_OFFSET 0 +#define SDRAMC_DA_SIZE 1 + +/* Bitfields in LPR */ +#define SDRAMC_LPCB_OFFSET 0 +#define SDRAMC_LPCB_SIZE 2 +#define SDRAMC_PASR_OFFSET 4 +#define SDRAMC_PASR_SIZE 3 +#define SDRAMC_TCSR_OFFSET 8 +#define SDRAMC_TCSR_SIZE 2 +#define SDRAMC_DS_OFFSET 10 +#define SDRAMC_DS_SIZE 2 +#define SDRAMC_TIMEOUT_OFFSET 12 +#define SDRAMC_TIMEOUT_SIZE 2 + +/* Bitfields in IDR */ +#define SDRAMC_RES_OFFSET 0 +#define SDRAMC_RES_SIZE 1 + +/* Bitfields in MDR */ +#define SDRAMC_MD_OFFSET 0 +#define SDRAMC_MD_SIZE 2 + +/* Constants for MODE */ +#define SDRAMC_MODE_NORMAL 0 +#define SDRAMC_MODE_NOP 1 +#define SDRAMC_MODE_BANKS_PRECHARGE 2 +#define SDRAMC_MODE_LOAD_MODE 3 +#define SDRAMC_MODE_AUTO_REFRESH 4 +#define SDRAMC_MODE_EXT_LOAD_MODE 5 +#define SDRAMC_MODE_POWER_DOWN 6 + +/* Constants for NC */ +#define SDRAMC_NC_8_COLUMN_BITS 0 +#define SDRAMC_NC_9_COLUMN_BITS 1 +#define SDRAMC_NC_10_COLUMN_BITS 2 +#define SDRAMC_NC_11_COLUMN_BITS 3 + +/* Constants for NR */ +#define SDRAMC_NR_11_ROW_BITS 0 +#define SDRAMC_NR_12_ROW_BITS 1 +#define SDRAMC_NR_13_ROW_BITS 2 + +/* Constants for NB */ +#define SDRAMC_NB_TWO_BANKS 0 +#define SDRAMC_NB_FOUR_BANKS 1 + +/* Constants for CAS */ +#define SDRAMC_CAS_ONE_CYCLE 1 +#define SDRAMC_CAS_TWO_CYCLES 2 +#define SDRAMC_CAS_THREE_CYCLES 3 + +/* Constants for DBW */ +#define SDRAMC_DBW_32_BITS 0 +#define SDRAMC_DBW_16_BITS 1 + +/* Constants for TIMEOUT */ +#define SDRAMC_TIMEOUT_AFTER_END 0 +#define SDRAMC_TIMEOUT_64_CYC_AFTER_END 1 +#define SDRAMC_TIMEOUT_128_CYC_AFTER_END 2 + +/* Constants for MD */ +#define SDRAMC_MD_SDRAM 0 +#define SDRAMC_MD_LOW_POWER_SDRAM 1 + +/* Bit manipulation macros */ +#define SDRAMC_BIT(name) \ + (1 << SDRAMC_##name##_OFFSET) +#define SDRAMC_BF(name,value) \ + (((value) & ((1 << SDRAMC_##name##_SIZE) - 1)) \ + << SDRAMC_##name##_OFFSET) +#define SDRAMC_BFEXT(name,value) \ + (((value) >> SDRAMC_##name##_OFFSET) \ + & ((1 << SDRAMC_##name##_SIZE) - 1)) +#define SDRAMC_BFINS(name,value,old) \ + (((old) & ~(((1 << SDRAMC_##name##_SIZE) - 1) \ + << SDRAMC_##name##_OFFSET)) \ + | SDRAMC_BF(name,value)) + +/* Register access macros */ +#define sdramc_readl(reg) \ + readl((void *)SDRAMC_BASE + SDRAMC_##reg) +#define sdramc_writel(reg,value) \ + writel((value), (void *)SDRAMC_BASE + SDRAMC_##reg) + +#endif /* __ASM_AVR32_SDRAMC_H__ */ diff --git a/cpu/at32uc/start.S b/cpu/at32uc/start.S new file mode 100644 index 0000000..e1d44cb --- /dev/null +++ b/cpu/at32uc/start.S @@ -0,0 +1,265 @@ +/* + * Copyright (C) 2005-2008 Atmel Corporation + * + * 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 <config.h> +#include <asm/ptrace.h> +#include <asm/sysreg.h> + + +#define SR_INIT (SYSREG_BIT(GM) | SYSREG_BIT(EM) | SYSREG_BIT(M0)) +#define CPUCR_INIT (SYSREG_BIT(BI) | SYSREG_BIT(BE) \ + | SYSREG_BIT(FE) | SYSREG_BIT(RE) \ + | SYSREG_BIT(IBE) | SYSREG_BIT(IEE)) + + /* + * To save some space, we use the same entry point for + * exceptions and reset. This avoids lots of alignment padding + * since the reset vector is always suitably aligned. + */ + .section .exception.text, "ax", @progbits + .global _start + .global _evba + .type _start, @function + .type _evba, @function +_start: + .size _start, 0 +_evba: + .org 0x00 + rjmp unknown_exception /* Unrecoverable exception */ + .org 0x04 + rjmp unknown_exception /* TLB multiple hit */ + .org 0x08 + rjmp unknown_exception /* Bus error data fetch */ + .org 0x0c + rjmp unknown_exception /* Bus error instruction fetch */ + .org 0x10 + rjmp unknown_exception /* NMI */ + .org 0x14 + rjmp unknown_exception /* Instruction address */ + .org 0x18 + rjmp unknown_exception /* ITLB protection */ + .org 0x1c + rjmp unknown_exception /* Breakpoint */ + .org 0x20 + rjmp unknown_exception /* Illegal opcode */ + .org 0x24 + rjmp unknown_exception /* Unimplemented instruction */ + .org 0x28 + rjmp unknown_exception /* Privilege violation */ + .org 0x2c + rjmp unknown_exception /* Floating-point */ + .org 0x30 + rjmp unknown_exception /* Coprocessor absent */ + .org 0x34 + rjmp unknown_exception /* Data Address (read) */ + .org 0x38 + rjmp unknown_exception /* Data Address (write) */ + .org 0x3c + rjmp unknown_exception /* DTLB Protection (read) */ + .org 0x40 + rjmp unknown_exception /* DTLB Protection (write) */ + .org 0x44 + rjmp unknown_exception /* DTLB Modified */ + + .org 0x50 + rjmp unknown_exception /* ITLB Miss */ + .org 0x60 + rjmp unknown_exception /* DTLB Miss (read) */ + .org 0x70 + rjmp unknown_exception /* DTLB Miss (write) */ + + .size _evba, . - _evba + + .align 2 + .type unknown_exception, @function +unknown_exception: + /* Figure out whether we're handling an exception (Exception + * mode) or just booting (Supervisor mode). */ + csrfcz SYSREG_M1_OFFSET + brcc at32uc_cpu_bootstrap + + /* This is an exception. Complain. */ + pushm r0-r12 + sub r8, sp, REG_R12 - REG_R0 - 4*3 + mov r9, lr + ld.w r10, r8[-4] + ld.w r11, r8[-8] + pushm r8-r11 + mfsr r12, SYSREG_ECR + mov r11, sp + rcall do_unknown_exception +1: rjmp 1b + + /* The COUNT/COMPARE timer interrupt handler */ + .global timer_interrupt_handler + .type timer_interrupt_handler,@function + .align 2 +timer_interrupt_handler: + /* + * Increment timer_overflow and re-write COMPARE with 0xffffffff. + * + * We're running at interrupt level 3, so we don't need to save + * r8-r12 or lr to the stack. + */ + lda.w r8, timer_overflow + ld.w r9, r8[0] + mov r10, -1 + mtsr SYSREG_COMPARE, r10 + sub r9, -1 + st.w r8[0], r9 + rete + + /* + * CPU bootstrap after reset is handled here. SoC code may + * override this in case they need to initialize oscillators, + * etc. + */ + .section .text.at32uc_cpu_bootstrap, "ax", @progbits + .global at32uc_cpu_bootstrap + .weak at32uc_cpu_bootstrap + .type at32uc_cpu_bootstrap, @function + .align 2 +at32uc_cpu_bootstrap: + /* Reset the Status Register */ + mov r0, lo(SR_INIT) + orh r0, hi(SR_INIT) + mtsr SYSREG_SR, r0 + /* ERRATA: two NOPs required after mtsr which may mask interrupts. */ + nop + nop + + /* Reset CPUCR and invalidate the BTB */ + mov r2, CPUCR_INIT + mtsr SYSREG_CPUCR, r2 + + /* Internal RAM should not need any initialization. We might + have to initialize external RAM here if the part doesn't + have internal RAM (or we may use the data cache) */ + + + lddpc sp, sp_init + + /* Initialize the GOT pointer */ + lddpc r6, got_init +3: rsub r6, pc + + /* Let's go */ + rjmp board_init_f + + .align 2 + .type sp_init,@object +sp_init: + .long CFG_INIT_SP_ADDR +got_init: + .long 3b - _GLOBAL_OFFSET_TABLE_ + + /* + * void relocate_code(new_sp, new_gd, monitor_addr) + * + * Relocate the u-boot image into RAM and continue from there. + * Does not return. + */ + .section .text.relocate_code,"ax",@progbits + .global relocate_code + .type relocate_code,@function +relocate_code: + mov sp, r12 /* use new stack */ + mov r12, r11 /* save new_gd */ + mov r11, r10 /* save destination address */ + + /* copy .text section */ + lda.w r8, _text + lda.w r9, _etext + sub lr, r10, r8 /* relocation offset */ + +1: ldm r8++, r0-r3 + stm r10, r0-r3 + sub r10, -16 + ldm r8++, r0-r3 + stm r10, r0-r3 + sub r10, -16 + cp.w r8, r9 + brlt 1b + + /* copy data sections */ + lda.w r9, _edata +1: ld.d r0, r8++ + st.d r10++, r0 + cp.w r8, r9 + brlt 1b + + /* zero out .bss */ + mov r0, 0 + mov r1, 0 + lda.w r9, _end + sub r9, r8 +1: st.d r10++, r0 + sub r9, 8 + brgt 1b + + /* jump to RAM */ + /* we don't want to run from sdram. + sub r0, pc, . - in_ram + add pc, r0, lr + */ + + .align 2 +in_ram: + /* find the new GOT and relocate it */ + lddpc r6, got_init_reloc +3: rsub r6, pc + add r6, lr + mov r8, r6 + lda.w r9, _egot + lda.w r10, _got + sub r9, r10 + + lda.w r1, _end_noreloc + +1: ld.w r0, r8[0] + /* Check if the symbol points to the text-section, and + * skip relocation if they do. + */ + cp.w r0, r1 + brlt 2f + + add r0, lr + st.w r8, r0 +2: + sub r8, -4 + sub r9, 4 + brgt 1b + + /* Move the exception handlers */ + /* We don't want to run from sdram. + mfsr r2, SYSREG_EVBA + add r2, lr + mtsr SYSREG_EVBA, r2 + */ + + /* Do the rest of the initialization sequence */ + call board_init_r + + .align 2 +got_init_reloc: + .long 3b - _GLOBAL_OFFSET_TABLE_ + + .size relocate_code, . - relocate_code diff --git a/include/asm-avr32/arch-at32uc3a0xxx/addrspace.h b/include/asm-avr32/arch-at32uc3a0xxx/addrspace.h new file mode 100644 index 0000000..90feed7 --- /dev/null +++ b/include/asm-avr32/arch-at32uc3a0xxx/addrspace.h @@ -0,0 +1,63 @@ +/* + * Copyright (C) 2006 Atmel Corporation + * + * 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 + */ +#ifndef __ASM_AVR32_ADDRSPACE_H +#define __ASM_AVR32_ADDRSPACE_H + +#include <asm/types.h> + +/* Returns the physical address of an address */ +#define PHYSADDR(a) ((unsigned long)(a)) + +/* virt_to_phys will only work when address is in P1 or P2 */ +static __inline__ unsigned long virt_to_phys(volatile void *address) +{ + return PHYSADDR(address); +} + +static __inline__ void * phys_to_virt(unsigned long address) +{ + return (void *)address; +} + +#define cached(addr) ((void *)(addr)) +#define uncached(addr) ((void *)(addr)) + +/* + * Given a physical address and a length, return a virtual address + * that can be used to access the memory range with the caching + * properties specified by "flags". + * + * This implementation works for memory below 512MiB (flash, etc.) as + * well as above 3.5GiB (internal peripherals.) + */ +#define MAP_NOCACHE (0) +#define MAP_WRCOMBINE (1 << 7) +#define MAP_WRBACK (MAP_WRCOMBINE | (1 << 9)) +#define MAP_WRTHROUGH (MAP_WRBACK | (1 << 0)) + +static inline void * +map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags) +{ + return (void *)paddr; +} + +#endif /* __ASM_AVR32_ADDRSPACE_H */ diff --git a/include/asm-avr32/arch-at32uc3a0xxx/cacheflush.h b/include/asm-avr32/arch-at32uc3a0xxx/cacheflush.h new file mode 100644 index 0000000..3dc1068 --- /dev/null +++ b/include/asm-avr32/arch-at32uc3a0xxx/cacheflush.h @@ -0,0 +1,41 @@ +/* + * Copyright (C) 2006 Atmel Corporation + * + * 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 + */ +#ifndef __ASM_AVR32_CACHEFLUSH_H +#define __ASM_AVR32_CACHEFLUSH_H + +/* No cache in the UC3. */ +#define dcache_invalidate_line(vaddr) +#define dcache_clean_line(vaddr) +#define dcache_flush_line(vaddr) +#define icache_invalidate_line(vaddr) +#define dcache_invalidate_range(start, len) +#define dcache_clean_range(start, len) +#define dcache_flush_range(start, len) +#define icache_invalidate_range(start, len) +#define dcache_flush_unlocked() + +/* + * Make sure any pending writes are completed before continuing. + */ +#define sync_write_buffer() asm volatile("sync 0" : : : "memory") + +#endif /* __ASM_AVR32_CACHEFLUSH_H */ diff --git a/include/asm-avr32/arch-at32uc3a0xxx/chip-features.h b/include/asm-avr32/arch-at32uc3a0xxx/chip-features.h new file mode 100644 index 0000000..25ae8d7 --- /dev/null +++ b/include/asm-avr32/arch-at32uc3a0xxx/chip-features.h @@ -0,0 +1,30 @@ +/* + * Copyright (C) 2007 Atmel Corporation + * + * 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 + */ +#ifndef __ASM_AVR32_ARCH_CHIP_FEATURES_H__ +#define __ASM_AVR32_ARCH_CHIP_FEATURES_H__ + +/* All the UC3A0xxx chips have these. */ +#define AT32UC3A0xxx_CHIP_HAS_USART +#define AT32UC3A0xxx_CHIP_HAS_SPI +#define AT32UC3A0xxx_CHIP_HAS_MACB + +#endif /* __ASM_AVR32_ARCH_CHIP_FEATURES_H__ */ diff --git a/include/asm-avr32/arch-at32uc3a0xxx/clk.h b/include/asm-avr32/arch-at32uc3a0xxx/clk.h new file mode 100644 index 0000000..1bfb721 --- /dev/null +++ b/include/asm-avr32/arch-at32uc3a0xxx/clk.h @@ -0,0 +1,86 @@ +/* + * Copyright (C) 2006 Atmel Corporation + * + * 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 + */ +#ifndef __ASM_AVR32_ARCH_CLK_H__ +#define __ASM_AVR32_ARCH_CLK_H__ + +#include <asm/arch/chip-features.h> + +#ifdef CONFIG_PLL +#define MAIN_CLK_RATE (((CFG_OSC0_HZ / CFG_PLL0_DIV) * CFG_PLL0_MUL) / \ + ((CFG_PLL0_OPT & 0x2) ? 2 : 1)) +#else +#define MAIN_CLK_RATE (CFG_OSC0_HZ) +#endif + +static inline unsigned long get_cpu_clk_rate(void) +{ + return MAIN_CLK_RATE >> CFG_CLKDIV_CPU; +} +static inline unsigned long get_hsb_clk_rate(void) +{ + //TODO HSB is always the same as cpu-rate + return MAIN_CLK_RATE >> CFG_CLKDIV_CPU; +} +static inline unsigned long get_pba_clk_rate(void) +{ + return MAIN_CLK_RATE >> CFG_CLKDIV_PBA; +} +static inline unsigned long get_pbb_clk_rate(void) +{ + return MAIN_CLK_RATE >> CFG_CLKDIV_PBB; +} + +/* Accessors for specific devices. More will be added as needed. */ +static inline unsigned long get_sdram_clk_rate(void) +{ + return get_hsb_clk_rate(); +} +#ifdef AT32UC3A0xxx_CHIP_HAS_USART +static inline unsigned long get_usart_clk_rate(unsigned int dev_id) +{ + return get_pba_clk_rate(); +} +#endif +#ifdef AT32UC3A0xxx_CHIP_HAS_MACB +static inline unsigned long get_macb_pclk_rate(unsigned int dev_id) +{ + return get_pbb_clk_rate(); +} +static inline unsigned long get_macb_hclk_rate(unsigned int dev_id) +{ + return get_hsb_clk_rate(); +} +#endif +#ifdef AT32UC3A0xxx_CHIP_HAS_SPI +static inline unsigned long get_spi_clk_rate(unsigned int dev_id) +{ + return get_pba_clk_rate(); +} +#endif + +extern void clk_init(void); +extern void gclk_init(void) __attribute__((weak)); + +/* Board code may need the SDRAM base clock as a compile-time constant */ +#define SDRAMC_BUS_HZ (MAIN_CLK_RATE >> CFG_CLKDIV_CPU) + +#endif /* __ASM_AVR32_ARCH_CLK_H__ */ diff --git a/include/asm-avr32/arch-at32uc3a0xxx/gpio.h b/include/asm-avr32/arch-at32uc3a0xxx/gpio.h new file mode 100644 index 0000000..165ee5d --- /dev/null +++ b/include/asm-avr32/arch-at32uc3a0xxx/gpio.h @@ -0,0 +1,44 @@ +/* + * Copyright (C) 2006, 2008 Atmel Corporation + * + * 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 + */ +#ifndef __ASM_AVR32_ARCH_GPIO_H__ +#define __ASM_AVR32_ARCH_GPIO_H__ + +#include <asm/arch/chip-features.h> +#include <asm/arch/memory-map.h> + +#define NR_GPIO_CONTROLLERS 4 + +static inline void *pio_pin_to_port(unsigned int pin) +{ + unsigned port_no; + + port_no = pin / 32; + if (port_no >= (NR_GPIO_CONTROLLERS - 1)) { + return NULL; + } + + return GPIO_PORT(port_no); +} + +#include <asm/arch-common/portmux-pio.h> + +#endif /* __ASM_AVR32_ARCH_GPIO_H__ */ diff --git a/include/asm-avr32/arch-at32uc3a0xxx/hmatrix.h b/include/asm-avr32/arch-at32uc3a0xxx/hmatrix.h new file mode 100644 index 0000000..907912f --- /dev/null +++ b/include/asm-avr32/arch-at32uc3a0xxx/hmatrix.h @@ -0,0 +1,47 @@ +/* + * Copyright (C) 2008 Atmel Corporation + * + * 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 + */ +#ifndef __ASM_AVR32_ARCH_HMATRIX_H__ +#define __ASM_AVR32_ARCH_HMATRIX_H__ + +#include <asm/hmatrix-common.h> + +/* Bitfields in SFR5 (EBI) */ +#define HMATRIX_EBI_SDRAM_ENABLE_OFFSET 1 +#define HMATRIX_EBI_SDRAM_ENABLE_SIZE 1 + +/* HSB masters */ +#define HMATRIX_MASTER_CPU_DATA 0 +#define HMATRIX_MASTER_CPU_INSTRUCTIONS 1 +#define HMATRIX_MASTER_CPU_SAB 2 +#define HMATRIX_MASTER_PDCA 3 +#define HMATRIX_MASTER_MACB_DMA 4 +#define HMATRIX_MASTER_USBB_DMA 5 + +/* HSB slaves */ +#define HMATRIX_SLAVE_INT_FLASH 0 +#define HMATRIX_SLAVE_HSB_PB_BR0 1 +#define HMATRIX_SLAVE_HSB_PB_BR1 2 +#define HMATRIX_SLAVE_INT_SRAM 3 +#define HMATRIX_SLAVE_USBB_DPRAM 4 +#define HMATRIX_SLAVE_EBI 5 + +#endif /* __ASM_AVR32_ARCH_HMATRIX_H__ */ diff --git a/include/asm-avr32/arch-at32uc3a0xxx/memory-map.h b/include/asm-avr32/arch-at32uc3a0xxx/memory-map.h new file mode 100644 index 0000000..cef3807 --- /dev/null +++ b/include/asm-avr32/arch-at32uc3a0xxx/memory-map.h @@ -0,0 +1,75 @@ +/* + * Copyright (C) 2005-2006 Atmel Corporation + * + * 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 + */ +#ifndef __AT32UC3A0512_MEMORY_MAP_H__ +#define __AT32UC3A0512_MEMORY_MAP_H__ + +/* Internal and external memories */ +#define EBI_SRAM_CS0_BASE 0xc0000000 +#define EBI_SRAM_CS0_SIZE 0x01000000 +#define EBI_SRAM_CS2_BASE 0xc8000000 +#define EBI_SRAM_CS2_SIZE 0x01000000 +#define EBI_SRAM_CS3_BASE 0xcc000000 +#define EBI_SRAM_CS3_SIZE 0x01000000 +#define EBI_SRAM_CS1_BASE 0xd0000000 +#define EBI_SRAM_CS1_SIZE 0x08000000 + +#define EBI_SDRAM_BASE EBI_SRAM_CS1_BASE +#define EBI_SDRAM_SIZE EBI_SRAM_CS1_SIZE + +#define INTERNAL_SRAM_BASE 0x00000000 +#define INTERNAL_SRAM_SIZE 0x00010000 + +/* Devices on HSB bus */ +#define USBB_SLAVE_BASE 0xE0000000 + +/* Devices on Peripheral Bus B (PBB) */ +#define USBB_CONFIG_BASE 0xFFFE0000 +#define HMATRIX_BASE 0xFFFE1000 +#define FLASHC_BASE 0xFFFE1400 +#define MACB_BASE 0xFFFE1800 +#define SMC_BASE 0xFFFE1C00 +#define SDRAMC_BASE 0xFFFE2000 + +/* Devices on Peripheral Bus A (PBA) */ +#define SM_BASE 0xFFFF0000 +#define PCDA_BASE 0xFFFF0000 +#define INTC_BASE 0xFFFF0800 +#define PM_BASE 0xFFFF0C00 +#define RTC_BASE 0xFFFF0D00 +#define WDT_BASE 0xFFFF0D30 +#define EIC_BASE 0xFFFF0D80 +#define GPIO_BASE 0xFFFF1000 +#define USART0_BASE 0xFFFF1400 +#define USART1_BASE 0xFFFF1800 +#define USART2_BASE 0xFFFF1C00 +#define USART3_BASE 0xFFFF2000 +#define SPI0_BASE 0xFFFF2400 +#define SPI1_BASE 0xFFFF2800 +#define TWI_BASE 0xFFFF2C00 +#define PWM_BASE 0xFFFF3000 +#define SSC_BASE 0xFFFF3400 +#define TC_BASE 0xFFFF3800 +#define ADC_BASE 0xFFFF3C00 + +#define GPIO_PORT(x) ( (void *) (GPIO_BASE + (x) * 0x0100) ) + +#endif /* __AT32UC3A0512_MEMORY_MAP_H__ */ diff --git a/include/asm-avr32/arch-at32uc3a0xxx/portmux.h b/include/asm-avr32/arch-at32uc3a0xxx/portmux.h new file mode 100644 index 0000000..2877206 --- /dev/null +++ b/include/asm-avr32/arch-at32uc3a0xxx/portmux.h @@ -0,0 +1,80 @@ +/* + * Copyright (C) 2006, 2008 Atmel Corporation + * + * 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 + */ +#ifndef __ASM_AVR32_ARCH_PORTMUX_H__ +#define __ASM_AVR32_ARCH_PORTMUX_H__ + +#include <asm/arch-common/portmux-gpio.h> +#include <asm/arch/memory-map.h> + +#define PORTMUX_PORT(x) ( (void *) (GPIO_BASE + (x) * 0x0100) ) +#define PORTMUX_PORT_A PORTMUX_PORT(0) +#define PORTMUX_PORT_B PORTMUX_PORT(1) +#define PORTMUX_PORT_C PORTMUX_PORT(2) + +void portmux_enable_ebi(unsigned int bus_width, unsigned int addr_width, + unsigned long flags, unsigned long drive_strength); + +#define PORTMUX_EBI_CS(x) (1 << (x)) +#define PORTMUX_EBI_NAND (1 << 6) +#define PORTMUX_EBI_CF(x) (1 << ((x) + 7)) +#define PORTMUX_EBI_NWAIT (1 << 9) + +#ifdef AT32UC3A0xxx_CHIP_HAS_USART +static inline void portmux_enable_usart0(unsigned long drive_strength) +{ + portmux_select_peripheral(PORTMUX_PORT_A, (1 << 0) | (1 << 1), + PORTMUX_FUNC_A, 0); +} + +static inline void portmux_enable_usart1(unsigned long drive_strength) +{ + portmux_select_peripheral(PORTMUX_PORT_A, (1 << 5) | (1 << 6), + PORTMUX_FUNC_A, 0); +} + +static inline void portmux_enable_usart2(unsigned long drive_strength) +{ + portmux_select_peripheral(PORTMUX_PORT_B, (1 << 29) | (1 << 30), + PORTMUX_FUNC_A, 0); +} + +static inline void portmux_enable_usart3(unsigned long drive_strength) +{ + portmux_select_peripheral(PORTMUX_PORT_B, (1 << 10) | (1 << 11), + PORTMUX_FUNC_B, 0); +} +#endif +#ifdef AT32UC3A0xxx_CHIP_HAS_MACB +void portmux_enable_macb(unsigned long flags, unsigned long drive_strength); + +#define PORTMUX_MACB_RMII (0) +#define PORTMUX_MACB_MII (1 << 0) +#define PORTMUX_MACB_SPEED (1 << 1) + +#endif +#ifdef AT32UC3A0xxx_CHIP_HAS_SPI +void portmux_enable_spi0(unsigned long cs_mask, unsigned long drive_strength); +void portmux_enable_spi1(unsigned long cs_mask, unsigned long drive_strength); +#endif + +#endif /* __ASM_AVR32_ARCH_PORTMUX_H__ */ +