diff options
author | Yang Zhang <yang.z.zhang@intel.com> | 2015-08-28 09:58:54 +0800 |
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committer | Yang Zhang <yang.z.zhang@intel.com> | 2015-09-01 12:44:00 +0800 |
commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/u-boot/board/kup/kup4k/kup4k.c | |
parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/u-boot/board/kup/kup4k/kup4k.c')
-rw-r--r-- | qemu/roms/u-boot/board/kup/kup4k/kup4k.c | 287 |
1 files changed, 287 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/board/kup/kup4k/kup4k.c b/qemu/roms/u-boot/board/kup/kup4k/kup4k.c new file mode 100644 index 000000000..a4c199859 --- /dev/null +++ b/qemu/roms/u-boot/board/kup/kup4k/kup4k.c @@ -0,0 +1,287 @@ +/* + * (C) Copyright 2000-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * Klaus Heydeck, Kieback & Peter GmbH & Co KG, heydeck@kieback-peter.de + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <command.h> +#include <libfdt.h> +#include <mpc8xx.h> +#include <hwconfig.h> +#include <i2c.h> +#include "../common/kup.h" +#include <asm/io.h> + +static unsigned char swapbyte(unsigned char c); +static int read_diag(void); + +DECLARE_GLOBAL_DATA_PTR; + +/* ----------------------------------------------------------------------- */ + +#define _NOT_USED_ 0xFFFFFFFF + +const uint sdram_table[] = { + /* + * Single Read. (Offset 0 in UPMA RAM) + */ + 0x1F07FC04, 0xEEAEFC04, 0x11ADFC04, 0xEFBBBC00, + 0x1FF77C47, /* last */ + + /* + * SDRAM Initialization (offset 5 in UPMA RAM) + * + * This is no UPM entry point. The following definition uses + * the remaining space to establish an initialization + * sequence, which is executed by a RUN command. + * + */ + 0x1FF77C35, 0xEFEABC34, 0x1FB57C35, /* last */ + + /* + * Burst Read. (Offset 8 in UPMA RAM) + */ + 0x1F07FC04, 0xEEAEFC04, 0x10ADFC04, 0xF0AFFC00, + 0xF0AFFC00, 0xF1AFFC00, 0xEFBBBC00, 0x1FF77C47, /* last */ + _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, + _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, + + /* + * Single Write. (Offset 18 in UPMA RAM) + */ + 0x1F27FC04, 0xEEAEBC00, 0x01B93C04, 0x1FF77C47, /* last */ + _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, + + /* + * Burst Write. (Offset 20 in UPMA RAM) + */ + 0x1F07FC04, 0xEEAEBC00, 0x10AD7C00, 0xF0AFFC00, + 0xF0AFFC00, 0xE1BBBC04, 0x1FF77C47, /* last */ + _NOT_USED_, + _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, + _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, + + /* + * Refresh (Offset 30 in UPMA RAM) + */ + 0x1FF5FC84, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04, + 0xFFFFFC84, 0xFFFFFC07, /* last */ + _NOT_USED_, _NOT_USED_, + _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, + + /* + * Exception. (Offset 3c in UPMA RAM) + */ + 0x7FFFFC07, /* last */ + _NOT_USED_, _NOT_USED_, _NOT_USED_, +}; + +/* ----------------------------------------------------------------------- */ + +/* + * Check Board Identity: + */ + +int checkboard(void) +{ + volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + uchar rev,mod,tmp,pcf,ak_rev,ak_mod; + + /* + * Init ChipSelect #4 (CAN + HW-Latch) + */ + out_be32(&immap->im_memctl.memc_or4, CONFIG_SYS_OR4); + out_be32(&immap->im_memctl.memc_br4, CONFIG_SYS_BR4); + + /* + * Init ChipSelect #5 (S1D13768) + */ + out_be32(&immap->im_memctl.memc_or5, CONFIG_SYS_OR5); + out_be32(&immap->im_memctl.memc_br5, CONFIG_SYS_BR5); + + tmp = swapbyte(in_8((unsigned char*) LATCH_ADDR)); + rev = (tmp & 0xF8) >> 3; + mod = (tmp & 0x07); + + i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); + + if (read_diag()) + gd->flags &= ~GD_FLG_SILENT; + + printf("Board: KUP4K Rev %d.%d AK:",rev,mod); + /* + * TI Application report: Before using the IO as an input, + * a high must be written to the IO first + */ + pcf = 0xFF; + i2c_write(0x21, 0, 0 , &pcf, 1); + if (i2c_read(0x21, 0, 0, &pcf, 1)) { + puts("n/a\n"); + } else { + ak_rev = (pcf & 0xF8) >> 3; + ak_mod = (pcf & 0x07); + printf("%d.%d\n", ak_rev, ak_mod); + } + return 0; +} + +/* ----------------------------------------------------------------------- */ + + +phys_size_t initdram(int board_type) +{ + volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + volatile memctl8xx_t *memctl = &immap->im_memctl; + long int size = 0; + uchar *latch, rev, tmp; + + /* + * Init ChipSelect #4 (CAN + HW-Latch) to determine Hardware Revision + * Rev 1..6 -> 48 MB RAM; Rev >= 7 -> 96 MB + */ + out_be32(&immap->im_memctl.memc_or4, CONFIG_SYS_OR4); + out_be32(&immap->im_memctl.memc_br4, CONFIG_SYS_BR4); + + latch = (uchar *)0x90000200; + tmp = swapbyte(*latch); + rev = (tmp & 0xF8) >> 3; + + upmconfig(UPMA, (uint *) sdram_table, + sizeof (sdram_table) / sizeof (uint)); + + out_be16(&memctl->memc_mptpr, CONFIG_SYS_MPTPR); + + out_be32(&memctl->memc_mar, 0x00000088); + /* no refresh yet */ + if(rev >= 7) { + out_be32(&memctl->memc_mamr, + CONFIG_SYS_MAMR_9COL & (~(MAMR_PTAE))); + } else { + out_be32(&memctl->memc_mamr, + CONFIG_SYS_MAMR_8COL & (~(MAMR_PTAE))); + } + + udelay(200); + + /* perform SDRAM initializsation sequence */ + + /* SDRAM bank 0 */ + out_be32(&memctl->memc_mcr, 0x80002105); + udelay(1); + out_be32(&memctl->memc_mcr, 0x80002830); /* execute twice */ + udelay(1); + out_be32(&memctl->memc_mcr, 0x80002106); /* RUN MRS Pattern from loc 6 */ + udelay(1); + + /* SDRAM bank 1 */ + out_be32(&memctl->memc_mcr, 0x80004105); + udelay(1); + out_be32(&memctl->memc_mcr, 0x80004830); /* execute twice */ + udelay(1); + out_be32(&memctl->memc_mcr, 0x80004106); /* RUN MRS Pattern from loc 6 */ + udelay(1); + + /* SDRAM bank 2 */ + out_be32(&memctl->memc_mcr, 0x80006105); + udelay(1); + out_be32(&memctl->memc_mcr, 0x80006830); /* execute twice */ + udelay(1); + out_be32(&memctl->memc_mcr, 0x80006106); /* RUN MRS Pattern from loc 6 */ + udelay(1); + + setbits_be32(&memctl->memc_mamr, MAMR_PTAE); /* enable refresh */ + udelay(1000); + + out_be16(&memctl->memc_mptpr, CONFIG_SYS_MPTPR); + udelay(1000); + if(rev >= 7) { + size = 32 * 3 * 1024 * 1024; + out_be32(&memctl->memc_or1, CONFIG_SYS_OR1_9COL); + out_be32(&memctl->memc_br1, CONFIG_SYS_BR1_9COL); + out_be32(&memctl->memc_or2, CONFIG_SYS_OR2_9COL); + out_be32(&memctl->memc_br2, CONFIG_SYS_BR2_9COL); + out_be32(&memctl->memc_or3, CONFIG_SYS_OR3_9COL); + out_be32(&memctl->memc_br3, CONFIG_SYS_BR3_9COL); + } else { + size = 16 * 3 * 1024 * 1024; + out_be32(&memctl->memc_or1, CONFIG_SYS_OR1_8COL); + out_be32(&memctl->memc_br1, CONFIG_SYS_BR1_8COL); + out_be32(&memctl->memc_or2, CONFIG_SYS_OR2_8COL); + out_be32(&memctl->memc_br2, CONFIG_SYS_BR2_8COL); + out_be32(&memctl->memc_or3, CONFIG_SYS_OR3_8COL); + out_be32(&memctl->memc_br3, CONFIG_SYS_BR3_8COL); + } + return (size); +} + +/* ----------------------------------------------------------------------- */ + + +int misc_init_r(void) +{ + volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + +#ifdef CONFIG_IDE_LED + /* Configure PA8 as output port */ + setbits_be16(&immap->im_ioport.iop_padir, PA_8); + setbits_be16(&immap->im_ioport.iop_paodr, PA_8); + clrbits_be16(&immap->im_ioport.iop_papar, PA_8); + setbits_be16(&immap->im_ioport.iop_padat, PA_8); /* turn it off */ +#endif + load_sernum_ethaddr(); + setenv("hw","4k"); + poweron_key(); + return (0); +} + + +static int read_diag(void) +{ + int diag; + immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + + clrbits_be16(&immr->im_ioport.iop_pcdir, PC_4); /* input */ + clrbits_be16(&immr->im_ioport.iop_pcpar, PC_4); /* gpio */ + setbits_be16(&immr->im_ioport.iop_pcdir, PC_5); /* output */ + clrbits_be16(&immr->im_ioport.iop_pcpar, PC_4); /* gpio */ + setbits_be16(&immr->im_ioport.iop_pcdat, PC_5); /* 1 */ + udelay(500); + if (in_be16(&immr->im_ioport.iop_pcdat) & PC_4) { + clrbits_be16(&immr->im_ioport.iop_pcdat, PC_5);/* 0 */ + udelay(500); + if(in_be16(&immr->im_ioport.iop_pcdat) & PC_4) + diag = 0; + else + diag = 1; + } else { + diag = 0; + } + clrbits_be16(&immr->im_ioport.iop_pcdir, PC_5); /* input */ + return (diag); +} + +static unsigned char swapbyte(unsigned char c) +{ + unsigned char result = 0; + int i = 0; + + for(i = 0; i < 8; ++i) { + result = result << 1; + result |= (c & 1); + c = c >> 1; + } + return result; +} + +/* + * Device Tree Support + */ +#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) +void ft_board_setup(void *blob, bd_t *bd) +{ + ft_cpu_setup(blob, bd); +} +#endif /* defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) */ |