diff options
Diffstat (limited to 'board/amcc/acadia/pll.c')
| -rw-r--r-- | board/amcc/acadia/pll.c | 195 |
1 files changed, 0 insertions, 195 deletions
diff --git a/board/amcc/acadia/pll.c b/board/amcc/acadia/pll.c deleted file mode 100644 index 6327d6c..0000000 --- a/board/amcc/acadia/pll.c +++ /dev/null @@ -1,195 +0,0 @@ -/* - * (C) Copyright 2007 - * Stefan Roese, DENX Software Engineering, sr@denx.de. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> -#include <asm/processor.h> -#include <asm/ppc405.h> - -/* test-only: move into cpu directory!!! */ - -#if defined(PLLMR0_200_133_66) -void board_pll_init_f(void) -{ - /* - * set PLL clocks based on input sysclk is 33M - * - * ---------------------------------- - * | CLK | FREQ (MHz) | DIV RATIO | - * ---------------------------------- - * | CPU | 200.0 | 4 (0x02)| - * | PLB | 133.3 | 6 (0x06)| - * | OPB | 66.6 | 12 (0x0C)| - * | EBC | 66.6 | 12 (0x0C)| - * | SPI | 66.6 | 12 (0x0C)| - * | UART0 | 10.0 | 40 (0x28)| - * | UART1 | 10.0 | 40 (0x28)| - * | DAC | 2.0 | 200 (0xC8)| - * | ADC | 2.0 | 200 (0xC8)| - * | PWM | 100.0 | 4 (0x04)| - * | EMAC | 25.0 | 16 (0x10)| - * ----------------------------------- - */ - - /* Initialize PLL */ - mtcpr(CPR0_PLLC, 0x0000033c); - mtcpr(CPR0_PLLD, 0x0c010200); - mtcpr(CPR0_PRIMAD, 0x04060c0c); - mtcpr(CPR0_PERD0, 0x000c0000); /* SPI clk div. eq. OPB clk div. */ - mtcpr(CPR0_CLKUPD, 0x40000000); -} - -#elif defined(PLLMR0_266_160_80) - -void board_pll_init_f(void) -{ - /* - * set PLL clocks based on input sysclk is 33M - * - * ---------------------------------- - * | CLK | FREQ (MHz) | DIV RATIO | - * ---------------------------------- - * | CPU | 266.64 | 3 | - * | PLB | 159.98 | 5 (0x05)| - * | OPB | 79.99 | 10 (0x0A)| - * | EBC | 79.99 | 10 (0x0A)| - * | SPI | 79.99 | 10 (0x0A)| - * | UART0 | 28.57 | 7 (0x07)| - * | UART1 | 28.57 | 7 (0x07)| - * | DAC | 28.57 | 7 (0xA7)| - * | ADC | 4 | 50 (0x32)| - * | PWM | 28.57 | 7 (0x07)| - * | EMAC | 4 | 50 (0x32)| - * ----------------------------------- - */ - - /* Initialize PLL */ - mtcpr(CPR0_PLLC, 0x20000238); - mtcpr(CPR0_PLLD, 0x03010400); - mtcpr(CPR0_PRIMAD, 0x03050a0a); - mtcpr(CPR0_PERC0, 0x00000000); - mtcpr(CPR0_PERD0, 0x070a0707); /* SPI clk div. eq. OPB clk div. */ - mtcpr(CPR0_PERD1, 0x07323200); - mtcpr(CPR0_CLKUP, 0x40000000); -} - -#elif defined(PLLMR0_333_166_83) - -void board_pll_init_f(void) -{ - /* - * set PLL clocks based on input sysclk is 33M - * - * ---------------------------------- - * | CLK | FREQ (MHz) | DIV RATIO | - * ---------------------------------- - * | CPU | 333.33 | 2 | - * | PLB | 166.66 | 4 (0x04)| - * | OPB | 83.33 | 8 (0x08)| - * | EBC | 83.33 | 8 (0x08)| - * | SPI | 83.33 | 8 (0x08)| - * | UART0 | 16.66 | 5 (0x05)| - * | UART1 | 16.66 | 5 (0x05)| - * | DAC | ???? | 166 (0xA6)| - * | ADC | ???? | 166 (0xA6)| - * | PWM | 41.66 | 3 (0x03)| - * | EMAC | ???? | 3 (0x03)| - * ----------------------------------- - */ - - /* Initialize PLL */ - mtcpr(CPR0_PLLC, 0x0000033C); - mtcpr(CPR0_PLLD, 0x0a010000); - mtcpr(CPR0_PRIMAD, 0x02040808); - mtcpr(CPR0_PERD0, 0x02080505); /* SPI clk div. eq. OPB clk div. */ - mtcpr(CPR0_PERD1, 0xA6A60300); - mtcpr(CPR0_CLKUP, 0x40000000); -} - -#elif defined(PLLMR0_100_100_12) - -void board_pll_init_f(void) -{ - /* - * set PLL clocks based on input sysclk is 33M - * - * ---------------------- - * | CLK | FREQ (MHz) | - * ---------------------- - * | CPU | 100.00 | - * | PLB | 100.00 | - * | OPB | 12.00 | - * | EBC | 49.00 | - * ---------------------- - */ - - /* Initialize PLL */ - mtcpr(CPR0_PLLC, 0x000003BC); - mtcpr(CPR0_PLLD, 0x06060600); - mtcpr(CPR0_PRIMAD, 0x02020004); - mtcpr(CPR0_PERD0, 0x04002828); /* SPI clk div. eq. OPB clk div. */ - mtcpr(CPR0_PERD1, 0xC8C81600); - mtcpr(CPR0_CLKUP, 0x40000000); -} -#endif /* CPU_<speed>_405EZ */ - -#if defined(CONFIG_NAND_SPL) || defined(CONFIG_SPI_SPL) -/* - * Get timebase clock frequency - */ -unsigned long get_tbclk(void) -{ - unsigned long cpr_plld; - unsigned long cpr_primad; - unsigned long primad_cpudv; - unsigned long pllFbkDiv; - unsigned long freqProcessor; - - /* - * Read PLL Mode registers - */ - mfcpr(CPR0_PLLD, cpr_plld); - - /* - * Read CPR_PRIMAD register - */ - mfcpr(CPR0_PRIMAD, cpr_primad); - - /* - * Determine CPU clock frequency - */ - primad_cpudv = ((cpr_primad & PRIMAD_CPUDV_MASK) >> 24); - if (primad_cpudv == 0) - primad_cpudv = 16; - - /* - * Determine FBK_DIV. - */ - pllFbkDiv = ((cpr_plld & PLLD_FBDV_MASK) >> 24); - if (pllFbkDiv == 0) - pllFbkDiv = 256; - - freqProcessor = (CONFIG_SYS_CLK_FREQ * pllFbkDiv) / primad_cpudv; - - return (freqProcessor); -} -#endif /* defined(CONFIG_NAND_SPL) || defined(CONFIG_SPI_SPL) */ |