diff options
Diffstat (limited to 'target/linux/ifxmips/files/arch/mips/include/asm/mach-ifxmips/cgu.h')
| -rw-r--r-- | target/linux/ifxmips/files/arch/mips/include/asm/mach-ifxmips/cgu.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/target/linux/ifxmips/files/arch/mips/include/asm/mach-ifxmips/cgu.h b/target/linux/ifxmips/files/arch/mips/include/asm/mach-ifxmips/cgu.h new file mode 100644 index 000000000..9ee287b42 --- /dev/null +++ b/target/linux/ifxmips/files/arch/mips/include/asm/mach-ifxmips/cgu.h @@ -0,0 +1,64 @@ +/* + * 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. + * + * Copyright (C) 2007 John Crispin <blogic@openwrt.org> + */ + +#ifndef _IFXMIPS_CGU_H__ +#define _IFXMIPS_CGU_H__ + +#define BASIC_INPUT_CLOCK_FREQUENCY_1 35328000 +#define BASIC_INPUT_CLOCK_FREQUENCY_2 36000000 + +#define BASIS_INPUT_CRYSTAL_USB 12000000 + +#define GET_BITS(x, msb, lsb) (((x) & ((1 << ((msb) + 1)) - 1)) >> (lsb)) + +#define CGU_PLL0_PHASE_DIVIDER_ENABLE (ifxmips_r32(IFXMIPS_CGU_PLL0_CFG) & (1 << 31)) +#define CGU_PLL0_BYPASS (ifxmips_r32(IFXMIPS_CGU_PLL0_CFG) & (1 << 30)) +#define CGU_PLL0_CFG_DSMSEL (ifxmips_r32(IFXMIPS_CGU_PLL0_CFG) & (1 << 28)) +#define CGU_PLL0_CFG_FRAC_EN (ifxmips_r32(IFXMIPS_CGU_PLL0_CFG) & (1 << 27)) +#define CGU_PLL1_SRC (ifxmips_r32(IFXMIPS_CGU_PLL1_CFG) & (1 << 31)) +#define CGU_PLL1_BYPASS (ifxmips_r32(IFXMIPS_CGU_PLL1_CFG) & (1 << 30)) +#define CGU_PLL1_CFG_DSMSEL (ifxmips_r32(IFXMIPS_CGU_PLL1_CFG) & (1 << 28)) +#define CGU_PLL1_CFG_FRAC_EN (ifxmips_r32(IFXMIPS_CGU_PLL1_CFG) & (1 << 27)) +#define CGU_PLL2_PHASE_DIVIDER_ENABLE (ifxmips_r32(IFXMIPS_CGU_PLL2_CFG) & (1 << 20)) +#define CGU_PLL2_BYPASS (ifxmips_r32(IFXMIPS_CGU_PLL2_CFG) & (1 << 19)) +#define CGU_SYS_FPI_SEL (1 << 6) +#define CGU_SYS_DDR_SEL 0x3 +#define CGU_PLL0_SRC (1 << 29) + +#define CGU_PLL0_CFG_PLLK GET_BITS(*IFXMIPS_CGU_PLL0_CFG, 26, 17) +#define CGU_PLL0_CFG_PLLN GET_BITS(*IFXMIPS_CGU_PLL0_CFG, 12, 6) +#define CGU_PLL0_CFG_PLLM GET_BITS(*IFXMIPS_CGU_PLL0_CFG, 5, 2) +#define CGU_PLL1_CFG_PLLK GET_BITS(*IFXMIPS_CGU_PLL1_CFG, 26, 17) +#define CGU_PLL1_CFG_PLLN GET_BITS(*IFXMIPS_CGU_PLL1_CFG, 12, 6) +#define CGU_PLL1_CFG_PLLM GET_BITS(*IFXMIPS_CGU_PLL1_CFG, 5, 2) +#define CGU_PLL2_SRC GET_BITS(*IFXMIPS_CGU_PLL2_CFG, 18, 17) +#define CGU_PLL2_CFG_INPUT_DIV GET_BITS(*IFXMIPS_CGU_PLL2_CFG, 16, 13) +#define CGU_PLL2_CFG_PLLN GET_BITS(*IFXMIPS_CGU_PLL2_CFG, 12, 6) +#define CGU_PLL2_CFG_PLLM GET_BITS(*IFXMIPS_CGU_PLL2_CFG, 5, 2) +#define CGU_IF_CLK_PCI_CLK GET_BITS(*IFXMIPS_CGU_IF_CLK, 23, 20) + + +unsigned int cgu_get_mips_clock(int cpu); +unsigned int cgu_get_io_region_clock(void); +unsigned int cgu_get_fpi_bus_clock(int fpi); +void cgu_setup_pci_clk(int internal_clock); +unsigned int ifxmips_get_ddr_hz(void); +unsigned int ifxmips_get_fpi_hz(void); +unsigned int ifxmips_get_cpu_hz(void); + +#endif |