diff options
Diffstat (limited to 'arch/mips/include/asm/mach-powertv/asic_regs.h')
| -rw-r--r-- | arch/mips/include/asm/mach-powertv/asic_regs.h | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/arch/mips/include/asm/mach-powertv/asic_regs.h b/arch/mips/include/asm/mach-powertv/asic_regs.h new file mode 100644 index 000000000000..1e11236c6dbc --- /dev/null +++ b/arch/mips/include/asm/mach-powertv/asic_regs.h @@ -0,0 +1,122 @@ +/* + * Copyright (C) 2009 Cisco Systems, Inc. + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef __ASM_MACH_POWERTV_ASIC_H_ +#define __ASM_MACH_POWERTV_ASIC_H_ +#include <linux/io.h> + +/* ASIC types */ +enum asic_type { + ASIC_UNKNOWN, + ASIC_ZEUS, + ASIC_CALLIOPE, + ASIC_CRONUS, + ASIC_CRONUSLITE, + ASICS +}; + +/* hardcoded values read from Chip Version registers */ +#define CRONUS_10 0x0B4C1C20 +#define CRONUS_11 0x0B4C1C21 +#define CRONUSLITE_10 0x0B4C1C40 + +#define NAND_FLASH_BASE 0x03000000 +#define CALLIOPE_IO_BASE 0x08000000 +#define CRONUS_IO_BASE 0x09000000 +#define ZEUS_IO_BASE 0x09000000 + +#define ASIC_IO_SIZE 0x01000000 + +/* Definitions for backward compatibility */ +#define UART1_INTSTAT uart1_intstat +#define UART1_INTEN uart1_inten +#define UART1_CONFIG1 uart1_config1 +#define UART1_CONFIG2 uart1_config2 +#define UART1_DIVISORHI uart1_divisorhi +#define UART1_DIVISORLO uart1_divisorlo +#define UART1_DATA uart1_data +#define UART1_STATUS uart1_status + +/* ASIC register enumeration */ +union register_map_entry { + unsigned long phys; + u32 *virt; +}; + +#define REGISTER_MAP_ELEMENT(x) union register_map_entry x; +struct register_map { +#include <asm/mach-powertv/asic_reg_map.h> +}; +#undef REGISTER_MAP_ELEMENT + +/** + * register_map_offset_phys - add an offset to the physical address + * @map: Pointer to the &struct register_map + * @offset: Value to add + * + * Only adds the base to non-zero physical addresses + */ +static inline void register_map_offset_phys(struct register_map *map, + unsigned long offset) +{ +#define REGISTER_MAP_ELEMENT(x) do { \ + if (map->x.phys != 0) \ + map->x.phys += offset; \ + } while (false); + +#include <asm/mach-powertv/asic_reg_map.h> +#undef REGISTER_MAP_ELEMENT +} + +/** + * register_map_virtualize - Convert ®ister_map to virtual addresses + * @map: Pointer to ®ister_map to virtualize + */ +static inline void register_map_virtualize(struct register_map *map) +{ +#define REGISTER_MAP_ELEMENT(x) do { \ + map->x.virt = (!map->x.phys) ? NULL : \ + UNCAC_ADDR(phys_to_virt(map->x.phys)); \ + } while (false); + +#include <asm/mach-powertv/asic_reg_map.h> +#undef REGISTER_MAP_ELEMENT +} + +extern struct register_map _asic_register_map; + +/* + * Macros to interface to registers through their ioremapped address + * asic_reg_phys_addr Returns the physical address of the given register + * asic_reg_addr Returns the iomapped virtual address of the given + * register. + */ +#define asic_reg_addr(x) (_asic_register_map.x.virt) +#define asic_reg_phys_addr(x) (virt_to_phys((void *) CAC_ADDR( \ + (unsigned long) asic_reg_addr(x)))) + +/* + * The asic_reg macro is gone. It should be replaced by either asic_read or + * asic_write, as appropriate. + */ + +#define asic_read(x) readl(asic_reg_addr(x)) +#define asic_write(v, x) writel(v, asic_reg_addr(x)) + +extern void asic_irq_init(void); +#endif |