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author | Masahiro Yamada <yamada.m@jp.panasonic.com> | 2014-02-21 09:55:16 +0900 |
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committer | Tom Rini <trini@ti.com> | 2014-03-10 11:38:13 -0400 |
commit | ba650e9b5263bfc7579e6775676441eeeca2edc4 (patch) | |
tree | fe38a8aef9e8df147b16b3012c774e6b01dbd00a /board/idmr/idmr.c | |
parent | 247161b8160fc699b0a517f081220bb50bc502a8 (diff) | |
download | blackbird-obmc-uboot-ba650e9b5263bfc7579e6775676441eeeca2edc4.tar.gz blackbird-obmc-uboot-ba650e9b5263bfc7579e6775676441eeeca2edc4.zip |
m68k: Remove M5271EVB and idmr board support
CONFIG_SYS_HZ must be always 1000, but M5271EVB.h defines it
as 1000000 and idmr.h defines it as (50000000 / 64).
When compiling these two boards, a warning message is displayed:
time.c:14:2: warning: #warning "CONFIG_SYS_HZ must be 1000
and should not be defined by platforms" [-Wcpp]
There are no board maintainers for them so this commit just
deletes them.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Jason Jin <Jason.jin@freescale.com>
Diffstat (limited to 'board/idmr/idmr.c')
-rw-r--r-- | board/idmr/idmr.c | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/board/idmr/idmr.c b/board/idmr/idmr.c deleted file mode 100644 index 73660d802d..0000000000 --- a/board/idmr/idmr.c +++ /dev/null @@ -1,152 +0,0 @@ -/* - * (C) Copyright 2000-2006 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/immap.h> - -int checkboard (void) { - puts ("Board: iDMR\n"); - return 0; -}; - -phys_size_t initdram (int board_type) { - int i; - - /* - * After reset, CS0 is configured to cover entire address space. We - * need to configure it to its proper values, so that writes to - * CONFIG_SYS_SDRAM_BASE and vicinity during SDRAM controller setup below do - * now fall under CS0 (see 16.3.1 of the MCF5271 Reference Manual). - */ - - /* Flash chipselect, CS0 */ - /* ;CSAR0: Flash at 0xFF800000 */ - mbar_writeShort(0x0080, 0xFF80); - - /* CSCR0: Flash 6 waits, 16bit */ - mbar_writeShort(0x008A, 0x1980); - - /* CSMR0: Flash 8MB, R/W, valid */ - mbar_writeLong(0x0084, 0x007F0001); - - - /* - * SDRAM configuration proper - */ - - /* - * Address/Data Pin Assignment Reg.: enable address lines 23-21; do - * not enable data pins D[15:0], as we have 16 bit port to SDRAM - */ - mbar_writeByte(MCF_GPIO_PAR_AD, - MCF_GPIO_AD_ADDR23 | - MCF_GPIO_AD_ADDR22 | - MCF_GPIO_AD_ADDR21); - - /* No need to configure BS pins - reset values are OK */ - - /* Chip Select Pin Assignment Reg.: set CS[1-7] to GPIO */ - mbar_writeByte(MCF_GPIO_PAR_CS, 0x00); - - /* SDRAM Control Pin Assignment Reg. */ - mbar_writeByte(MCF_GPIO_PAR_SDRAM, - MCF_GPIO_SDRAM_CSSDCS_00 | /* no matter: PAR_CS=0 */ - MCF_GPIO_SDRAM_SDWE | - MCF_GPIO_SDRAM_SCAS | - MCF_GPIO_SDRAM_SRAS | - MCF_GPIO_SDRAM_SCKE | - MCF_GPIO_SDRAM_SDCS_01); - - /* - * Wait 100us. We run the bus at 50MHz, one cycle is 20ns. So 5 - * iterations will do, but we do 10 just to be safe. - */ - for (i = 0; i < 10; ++i) - asm(" nop"); - - - /* 1. Initialize DRAM Control Register: DCR */ - mbar_writeShort(MCF_SDRAMC_DCR, - MCF_SDRAMC_DCR_RTIM(0x10) | /* 65ns */ - MCF_SDRAMC_DCR_RC(0x60)); /* 1562 cycles */ - - - /* - * 2. Initialize DACR0 - * - * CL: 11 (CL=3: 0x03, 0x02; CL=2: 0x1) - * CBM: cmd at A20, bank select bits 21 and up - * PS: 16 bit - */ - mbar_writeLong(MCF_SDRAMC_DACR0, - MCF_SDRAMC_DACRn_BA(CONFIG_SYS_SDRAM_BASE>>18) | - MCF_SDRAMC_DACRn_BA(0x00) | - MCF_SDRAMC_DACRn_CASL(0x03) | - MCF_SDRAMC_DACRn_CBM(0x03) | - MCF_SDRAMC_DACRn_PS(0x03)); - - /* Initialize DMR0 */ - mbar_writeLong(MCF_SDRAMC_DMR0, - MCF_SDRAMC_DMRn_BAM_16M | - MCF_SDRAMC_DMRn_V); - - - /* 3. Set IP bit in DACR to initiate PALL command */ - mbar_writeLong(MCF_SDRAMC_DACR0, - mbar_readLong(MCF_SDRAMC_DACR0) | - MCF_SDRAMC_DACRn_IP); - - /* Write to this block to initiate precharge */ - *(volatile u16 *)(CONFIG_SYS_SDRAM_BASE) = 0xa5a5; - - /* - * Wait at least 20ns to allow banks to precharge (t_RP = 20ns). We - * wait a wee longer, just to be safe. - */ - for (i = 0; i < 5; ++i) - asm(" nop"); - - - /* 4. Set RE bit in DACR */ - mbar_writeLong(MCF_SDRAMC_DACR0, - mbar_readLong(MCF_SDRAMC_DACR0) | - MCF_SDRAMC_DACRn_RE); - - /* - * Wait for at least 8 auto refresh cycles to occur, i.e. at least - * 781 bus cycles. - */ - for (i = 0; i < 1000; ++i) - asm(" nop"); - - /* Finish the configuration by issuing the MRS */ - mbar_writeLong(MCF_SDRAMC_DACR0, - mbar_readLong(MCF_SDRAMC_DACR0) | - MCF_SDRAMC_DACRn_MRS); - - /* - * Write to the SDRAM Mode Register A0-A11 = 0x400 - * - * Write Burst Mode = Programmed Burst Length - * Op Mode = Standard Op - * CAS Latency = 3 - * Burst Type = Sequential - * Burst Length = 1 - */ - *(volatile u32 *)(CONFIG_SYS_SDRAM_BASE + 0x1800) = 0xa5a5a5a5; - - return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024; -}; - - -int testdram (void) { - - /* TODO: XXX XXX XXX */ - printf ("DRAM test not implemented!\n"); - - return (0); -} |