projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 1da177e4 LT |
2 | /***************************************************************************/ |
| 3 | ||
| 4 | /* | |
| ece9ae65 | 5 | * m5307.c -- platform support for ColdFire 5307 based boards |
| 1da177e4 LT |
6 | * |
| 7 | * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) | |
| 8 | * Copyright (C) 2000, Lineo (www.lineo.com) | |
| 9 | */ | |
| 10 | ||
| 11 | /***************************************************************************/ | |
| 12 | ||
| 63aadb77 | 13 | #include <linux/clkdev.h> |
| 1da177e4 | 14 | #include <linux/kernel.h> |
| 1da177e4 LT |
15 | #include <linux/param.h> |
| 16 | #include <linux/init.h> | |
| 96db271a | 17 | #include <linux/io.h> |
| 1da177e4 LT |
18 | #include <asm/machdep.h> |
| 19 | #include <asm/coldfire.h> | |
| 1da177e4 | 20 | #include <asm/mcfsim.h> |
| 1da177e4 | 21 | #include <asm/mcfwdebug.h> |
| 91ca1bbd | 22 | #include <asm/mcfclk.h> |
| 1da177e4 LT |
23 | |
| 24 | /***************************************************************************/ | |
| 25 | ||
| 1da177e4 LT |
26 | /* |
| 27 | * Some platforms need software versions of the GPIO data registers. | |
| 28 | */ | |
| 29 | unsigned short ppdata; | |
| 30 | unsigned char ledbank = 0xff; | |
| 31 | ||
| 32 | /***************************************************************************/ | |
| 33 | ||
| 91ca1bbd GU |
34 | DEFINE_CLK(pll, "pll.0", MCF_CLK); |
| 35 | DEFINE_CLK(sys, "sys.0", MCF_BUSCLK); | |
| 63aadb77 AB |
36 | |
| 37 | static struct clk_lookup m5307_clk_lookup[] = { | |
| 38 | CLKDEV_INIT(NULL, "pll.0", &clk_pll), | |
| 39 | CLKDEV_INIT(NULL, "sys.0", &clk_sys), | |
| 40 | CLKDEV_INIT("mcftmr.0", NULL, &clk_sys), | |
| 41 | CLKDEV_INIT("mcftmr.1", NULL, &clk_sys), | |
| 42 | CLKDEV_INIT("mcfuart.0", NULL, &clk_sys), | |
| 43 | CLKDEV_INIT("mcfuart.1", NULL, &clk_sys), | |
| 44 | CLKDEV_INIT("imx1-i2c.0", NULL, &clk_sys), | |
| 91ca1bbd GU |
45 | }; |
| 46 | ||
| 47 | /***************************************************************************/ | |
| 48 | ||
| 2d24b532 SK |
49 | static void __init m5307_i2c_init(void) |
| 50 | { | |
| 51 | #if IS_ENABLED(CONFIG_I2C_IMX) | |
| 52 | writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL5 | MCFSIM_ICR_PRI0, | |
| 53 | MCFSIM_I2CICR); | |
| 54 | mcf_mapirq2imr(MCF_IRQ_I2C0, MCFINTC_I2C); | |
| 55 | #endif /* IS_ENABLED(CONFIG_I2C_IMX) */ | |
| 56 | } | |
| 57 | ||
| 58 | /***************************************************************************/ | |
| 59 | ||
| 96db271a | 60 | void __init config_BSP(char *commandp, int size) |
| 1da177e4 | 61 | { |
| 3947fca7 | 62 | #if defined(CONFIG_NETtel) || \ |
| cff28b56 | 63 | defined(CONFIG_SECUREEDGEMP3) || defined(CONFIG_CLEOPATRA) |
| 1da177e4 LT |
64 | /* Copy command line from FLASH to local buffer... */ |
| 65 | memcpy(commandp, (char *) 0xf0004000, size); | |
| 66 | commandp[size-1] = 0; | |
| 1da177e4 LT |
67 | #endif |
| 68 | ||
| 35aefb26 | 69 | mach_sched_init = hw_timer_init; |
| 39f0fb6a GU |
70 | |
| 71 | /* Only support the external interrupts on their primary level */ | |
| 72 | mcf_mapirq2imr(25, MCFINTC_EINT1); | |
| 73 | mcf_mapirq2imr(27, MCFINTC_EINT3); | |
| 74 | mcf_mapirq2imr(29, MCFINTC_EINT5); | |
| 75 | mcf_mapirq2imr(31, MCFINTC_EINT7); | |
| 1da177e4 | 76 | |
| 96db271a | 77 | #ifdef CONFIG_BDM_DISABLE |
| 1da177e4 LT |
78 | /* |
| 79 | * Disable the BDM clocking. This also turns off most of the rest of | |
| 80 | * the BDM device. This is good for EMC reasons. This option is not | |
| 81 | * incompatible with the memory protection option. | |
| 82 | */ | |
| 83 | wdebug(MCFDEBUG_CSR, MCFDEBUG_CSR_PSTCLK); | |
| 84 | #endif | |
| 2d24b532 | 85 | m5307_i2c_init(); |
| 63aadb77 AB |
86 | |
| 87 | clkdev_add_table(m5307_clk_lookup, ARRAY_SIZE(m5307_clk_lookup)); | |
| 1da177e4 LT |
88 | } |
| 89 | ||
| 90 | /***************************************************************************/ |