From b1f12650d332eadac1306a772cab6096abee6ddd Mon Sep 17 00:00:00 2001 From: Peter Tyser Date: Thu, 21 May 2009 12:09:59 -0500 Subject: [PATCH] fsl: Create common fsl_dma.h for 85xx and 86xx cpus Break out DMA structures for the Freescale MPC85xx and MPC86xx cpus to reduce a large amount of code duplication Signed-off-by: Peter Tyser Signed-off-by: Kumar Gala --- cpu/mpc85xx/cpu.c | 31 ++++++++------- cpu/mpc86xx/cpu.c | 27 +++++++------ include/asm-ppc/fsl_dma.h | 51 ++++++++++++++++++++++++ include/asm-ppc/immap_85xx.h | 76 ++---------------------------------- include/asm-ppc/immap_86xx.h | 76 ++---------------------------------- 5 files changed, 89 insertions(+), 172 deletions(-) create mode 100644 include/asm-ppc/fsl_dma.h diff --git a/cpu/mpc85xx/cpu.c b/cpu/mpc85xx/cpu.c index 9ad118842b..331fcc09a4 100644 --- a/cpu/mpc85xx/cpu.c +++ b/cpu/mpc85xx/cpu.c @@ -266,26 +266,28 @@ reset_85xx_watchdog(void) #if defined(CONFIG_DDR_ECC) void dma_init(void) { - volatile ccsr_dma_t *dma = (void *)(CONFIG_SYS_MPC85xx_DMA_ADDR); + volatile ccsr_dma_t *dma_base = (void *)(CONFIG_SYS_MPC85xx_DMA_ADDR); + volatile fsl_dma_t *dma = &dma_base->dma[0]; - dma->satr0 = 0x02c40000; - dma->datr0 = 0x02c40000; - dma->sr0 = 0xfffffff; /* clear any errors */ + dma->satr = 0x02c40000; + dma->datr = 0x02c40000; + dma->sr = 0xfffffff; /* clear any errors */ asm("sync; isync; msync"); return; } uint dma_check(void) { - volatile ccsr_dma_t *dma = (void *)(CONFIG_SYS_MPC85xx_DMA_ADDR); - volatile uint status = dma->sr0; + volatile ccsr_dma_t *dma_base = (void *)(CONFIG_SYS_MPC85xx_DMA_ADDR); + volatile fsl_dma_t *dma = &dma_base->dma[0]; + volatile uint status = dma->sr; /* While the channel is busy, spin */ while((status & 4) == 4) { - status = dma->sr0; + status = dma->sr; } /* clear MR0[CS] channel start bit */ - dma->mr0 &= 0x00000001; + dma->mr &= 0x00000001; asm("sync;isync;msync"); if (status != 0) { @@ -295,14 +297,15 @@ uint dma_check(void) { } int dma_xfer(void *dest, uint count, void *src) { - volatile ccsr_dma_t *dma = (void *)(CONFIG_SYS_MPC85xx_DMA_ADDR); + volatile ccsr_dma_t *dma_base = (void *)(CONFIG_SYS_MPC85xx_DMA_ADDR); + volatile fsl_dma_t *dma = &dma_base->dma[0]; - dma->dar0 = (uint) dest; - dma->sar0 = (uint) src; - dma->bcr0 = count; - dma->mr0 = 0xf000004; + dma->dar = (uint) dest; + dma->sar = (uint) src; + dma->bcr = count; + dma->mr = 0xf000004; asm("sync;isync;msync"); - dma->mr0 = 0xf000005; + dma->mr = 0xf000005; asm("sync;isync;msync"); return dma_check(); } diff --git a/cpu/mpc86xx/cpu.c b/cpu/mpc86xx/cpu.c index 653a137396..f35323ac67 100644 --- a/cpu/mpc86xx/cpu.c +++ b/cpu/mpc86xx/cpu.c @@ -183,10 +183,11 @@ void dma_init(void) { volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - volatile ccsr_dma_t *dma = &immap->im_dma; + volatile ccsr_dma_t *dma_base = &immap->im_dma; + volatile fsl_dma_t *dma = &dma_base->dma[0]; - dma->satr0 = 0x00040000; - dma->datr0 = 0x00040000; + dma->satr = 0x00040000; + dma->datr = 0x00040000; asm("sync; isync"); } @@ -194,12 +195,13 @@ uint dma_check(void) { volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - volatile ccsr_dma_t *dma = &immap->im_dma; - volatile uint status = dma->sr0; + volatile ccsr_dma_t *dma_base = &immap->im_dma; + volatile fsl_dma_t *dma = &dma_base->dma[0]; + volatile uint status = dma->sr; /* While the channel is busy, spin */ while ((status & 4) == 4) { - status = dma->sr0; + status = dma->sr; } if (status != 0) { @@ -212,14 +214,15 @@ int dma_xfer(void *dest, uint count, void *src) { volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - volatile ccsr_dma_t *dma = &immap->im_dma; + volatile ccsr_dma_t *dma_base = &immap->im_dma; + volatile fsl_dma_t *dma = &dma_base->dma[0]; - dma->dar0 = (uint) dest; - dma->sar0 = (uint) src; - dma->bcr0 = count; - dma->mr0 = 0xf000004; + dma->dar = (uint) dest; + dma->sar = (uint) src; + dma->bcr = count; + dma->mr = 0xf000004; asm("sync;isync"); - dma->mr0 = 0xf000005; + dma->mr = 0xf000005; asm("sync;isync"); return dma_check(); } diff --git a/include/asm-ppc/fsl_dma.h b/include/asm-ppc/fsl_dma.h new file mode 100644 index 0000000000..aab8720977 --- /dev/null +++ b/include/asm-ppc/fsl_dma.h @@ -0,0 +1,51 @@ +/* + * Freescale DMA Controller + * + * Copyright 2006 Freescale Semiconductor, Inc. + * + * This software may be used and distributed according to the + * terms of the GNU Public License, Version 2, incorporated + * herein by reference. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + * + * 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 + */ + +#ifndef _ASM_FSL_DMA_H_ +#define _ASM_FSL_DMA_H_ + +#include + +typedef struct fsl_dma { + uint mr; /* DMA mode register */ + uint sr; /* DMA status register */ + char res0[4]; + uint clndar; /* DMA current link descriptor address register */ + uint satr; /* DMA source attributes register */ + uint sar; /* DMA source address register */ + uint datr; /* DMA destination attributes register */ + uint dar; /* DMA destination address register */ + uint bcr; /* DMA byte count register */ + char res1[4]; + uint nlndar; /* DMA next link descriptor address register */ + char res2[8]; + uint clabdar; /* DMA current List - alternate base descriptor address Register */ + char res3[4]; + uint nlsdar; /* DMA next list descriptor address register */ + uint ssr; /* DMA source stride register */ + uint dsr; /* DMA destination stride register */ + char res4[56]; +} fsl_dma_t; + +#endif /* _ASM_DMA_H_ */ diff --git a/include/asm-ppc/immap_85xx.h b/include/asm-ppc/immap_85xx.h index 0f9f493d1f..e4f5ee2bc9 100644 --- a/include/asm-ppc/immap_85xx.h +++ b/include/asm-ppc/immap_85xx.h @@ -12,6 +12,7 @@ #define __IMMAP_85xx__ #include +#include #include #include @@ -406,80 +407,9 @@ typedef struct ccsr_l2cache { */ typedef struct ccsr_dma { char res1[256]; - uint mr0; /* 0x21100 - DMA 0 Mode Register */ - uint sr0; /* 0x21104 - DMA 0 Status Register */ - char res2[4]; - uint clndar0; /* 0x2110c - DMA 0 Current Link Descriptor Address Register */ - uint satr0; /* 0x21110 - DMA 0 Source Attributes Register */ - uint sar0; /* 0x21114 - DMA 0 Source Address Register */ - uint datr0; /* 0x21118 - DMA 0 Destination Attributes Register */ - uint dar0; /* 0x2111c - DMA 0 Destination Address Register */ - uint bcr0; /* 0x21120 - DMA 0 Byte Count Register */ - char res3[4]; - uint nlndar0; /* 0x21128 - DMA 0 Next Link Descriptor Address Register */ - char res4[8]; - uint clabdar0; /* 0x21134 - DMA 0 Current List - Alternate Base Descriptor Address Register */ - char res5[4]; - uint nlsdar0; /* 0x2113c - DMA 0 Next List Descriptor Address Register */ - uint ssr0; /* 0x21140 - DMA 0 Source Stride Register */ - uint dsr0; /* 0x21144 - DMA 0 Destination Stride Register */ - char res6[56]; - uint mr1; /* 0x21180 - DMA 1 Mode Register */ - uint sr1; /* 0x21184 - DMA 1 Status Register */ - char res7[4]; - uint clndar1; /* 0x2118c - DMA 1 Current Link Descriptor Address Register */ - uint satr1; /* 0x21190 - DMA 1 Source Attributes Register */ - uint sar1; /* 0x21194 - DMA 1 Source Address Register */ - uint datr1; /* 0x21198 - DMA 1 Destination Attributes Register */ - uint dar1; /* 0x2119c - DMA 1 Destination Address Register */ - uint bcr1; /* 0x211a0 - DMA 1 Byte Count Register */ - char res8[4]; - uint nlndar1; /* 0x211a8 - DMA 1 Next Link Descriptor Address Register */ - char res9[8]; - uint clabdar1; /* 0x211b4 - DMA 1 Current List - Alternate Base Descriptor Address Register */ - char res10[4]; - uint nlsdar1; /* 0x211bc - DMA 1 Next List Descriptor Address Register */ - uint ssr1; /* 0x211c0 - DMA 1 Source Stride Register */ - uint dsr1; /* 0x211c4 - DMA 1 Destination Stride Register */ - char res11[56]; - uint mr2; /* 0x21200 - DMA 2 Mode Register */ - uint sr2; /* 0x21204 - DMA 2 Status Register */ - char res12[4]; - uint clndar2; /* 0x2120c - DMA 2 Current Link Descriptor Address Register */ - uint satr2; /* 0x21210 - DMA 2 Source Attributes Register */ - uint sar2; /* 0x21214 - DMA 2 Source Address Register */ - uint datr2; /* 0x21218 - DMA 2 Destination Attributes Register */ - uint dar2; /* 0x2121c - DMA 2 Destination Address Register */ - uint bcr2; /* 0x21220 - DMA 2 Byte Count Register */ - char res13[4]; - uint nlndar2; /* 0x21228 - DMA 2 Next Link Descriptor Address Register */ - char res14[8]; - uint clabdar2; /* 0x21234 - DMA 2 Current List - Alternate Base Descriptor Address Register */ - char res15[4]; - uint nlsdar2; /* 0x2123c - DMA 2 Next List Descriptor Address Register */ - uint ssr2; /* 0x21240 - DMA 2 Source Stride Register */ - uint dsr2; /* 0x21244 - DMA 2 Destination Stride Register */ - char res16[56]; - uint mr3; /* 0x21280 - DMA 3 Mode Register */ - uint sr3; /* 0x21284 - DMA 3 Status Register */ - char res17[4]; - uint clndar3; /* 0x2128c - DMA 3 Current Link Descriptor Address Register */ - uint satr3; /* 0x21290 - DMA 3 Source Attributes Register */ - uint sar3; /* 0x21294 - DMA 3 Source Address Register */ - uint datr3; /* 0x21298 - DMA 3 Destination Attributes Register */ - uint dar3; /* 0x2129c - DMA 3 Destination Address Register */ - uint bcr3; /* 0x212a0 - DMA 3 Byte Count Register */ - char res18[4]; - uint nlndar3; /* 0x212a8 - DMA 3 Next Link Descriptor Address Register */ - char res19[8]; - uint clabdar3; /* 0x212b4 - DMA 3 Current List - Alternate Base Descriptor Address Register */ - char res20[4]; - uint nlsdar3; /* 0x212bc - DMA 3 Next List Descriptor Address Register */ - uint ssr3; /* 0x212c0 - DMA 3 Source Stride Register */ - uint dsr3; /* 0x212c4 - DMA 3 Destination Stride Register */ - char res21[56]; + struct fsl_dma dma[4]; uint dgsr; /* 0x21300 - DMA General Status Register */ - char res22[11516]; + char res2[11516]; } ccsr_dma_t; /* diff --git a/include/asm-ppc/immap_86xx.h b/include/asm-ppc/immap_86xx.h index 470385ffd2..689c720452 100644 --- a/include/asm-ppc/immap_86xx.h +++ b/include/asm-ppc/immap_86xx.h @@ -11,6 +11,7 @@ #define __IMMAP_86xx__ #include +#include #include /* Local-Access Registers and MCM Registers(0x0000-0x2000) */ @@ -386,80 +387,9 @@ typedef struct ccsr_ht { /* DMA Registers(0x2_1000-0x2_2000) */ typedef struct ccsr_dma { char res1[256]; - uint mr0; /* 0x21100 - DMA 0 Mode Register */ - uint sr0; /* 0x21104 - DMA 0 Status Register */ - char res2[4]; - uint clndar0; /* 0x2110c - DMA 0 Current Link Descriptor Address Register */ - uint satr0; /* 0x21110 - DMA 0 Source Attributes Register */ - uint sar0; /* 0x21114 - DMA 0 Source Address Register */ - uint datr0; /* 0x21118 - DMA 0 Destination Attributes Register */ - uint dar0; /* 0x2111c - DMA 0 Destination Address Register */ - uint bcr0; /* 0x21120 - DMA 0 Byte Count Register */ - char res3[4]; - uint nlndar0; /* 0x21128 - DMA 0 Next Link Descriptor Address Register */ - char res4[8]; - uint clabdar0; /* 0x21134 - DMA 0 Current List - Alternate Base Descriptor Address Register */ - char res5[4]; - uint nlsdar0; /* 0x2113c - DMA 0 Next List Descriptor Address Register */ - uint ssr0; /* 0x21140 - DMA 0 Source Stride Register */ - uint dsr0; /* 0x21144 - DMA 0 Destination Stride Register */ - char res6[56]; - uint mr1; /* 0x21180 - DMA 1 Mode Register */ - uint sr1; /* 0x21184 - DMA 1 Status Register */ - char res7[4]; - uint clndar1; /* 0x2118c - DMA 1 Current Link Descriptor Address Register */ - uint satr1; /* 0x21190 - DMA 1 Source Attributes Register */ - uint sar1; /* 0x21194 - DMA 1 Source Address Register */ - uint datr1; /* 0x21198 - DMA 1 Destination Attributes Register */ - uint dar1; /* 0x2119c - DMA 1 Destination Address Register */ - uint bcr1; /* 0x211a0 - DMA 1 Byte Count Register */ - char res8[4]; - uint nlndar1; /* 0x211a8 - DMA 1 Next Link Descriptor Address Register */ - char res9[8]; - uint clabdar1; /* 0x211b4 - DMA 1 Current List - Alternate Base Descriptor Address Register */ - char res10[4]; - uint nlsdar1; /* 0x211bc - DMA 1 Next List Descriptor Address Register */ - uint ssr1; /* 0x211c0 - DMA 1 Source Stride Register */ - uint dsr1; /* 0x211c4 - DMA 1 Destination Stride Register */ - char res11[56]; - uint mr2; /* 0x21200 - DMA 2 Mode Register */ - uint sr2; /* 0x21204 - DMA 2 Status Register */ - char res12[4]; - uint clndar2; /* 0x2120c - DMA 2 Current Link Descriptor Address Register */ - uint satr2; /* 0x21210 - DMA 2 Source Attributes Register */ - uint sar2; /* 0x21214 - DMA 2 Source Address Register */ - uint datr2; /* 0x21218 - DMA 2 Destination Attributes Register */ - uint dar2; /* 0x2121c - DMA 2 Destination Address Register */ - uint bcr2; /* 0x21220 - DMA 2 Byte Count Register */ - char res13[4]; - uint nlndar2; /* 0x21228 - DMA 2 Next Link Descriptor Address Register */ - char res14[8]; - uint clabdar2; /* 0x21234 - DMA 2 Current List - Alternate Base Descriptor Address Register */ - char res15[4]; - uint nlsdar2; /* 0x2123c - DMA 2 Next List Descriptor Address Register */ - uint ssr2; /* 0x21240 - DMA 2 Source Stride Register */ - uint dsr2; /* 0x21244 - DMA 2 Destination Stride Register */ - char res16[56]; - uint mr3; /* 0x21280 - DMA 3 Mode Register */ - uint sr3; /* 0x21284 - DMA 3 Status Register */ - char res17[4]; - uint clndar3; /* 0x2128c - DMA 3 Current Link Descriptor Address Register */ - uint satr3; /* 0x21290 - DMA 3 Source Attributes Register */ - uint sar3; /* 0x21294 - DMA 3 Source Address Register */ - uint datr3; /* 0x21298 - DMA 3 Destination Attributes Register */ - uint dar3; /* 0x2129c - DMA 3 Destination Address Register */ - uint bcr3; /* 0x212a0 - DMA 3 Byte Count Register */ - char res18[4]; - uint nlndar3; /* 0x212a8 - DMA 3 Next Link Descriptor Address Register */ - char res19[8]; - uint clabdar3; /* 0x212b4 - DMA 3 Current List - Alternate Base Descriptor Address Register */ - char res20[4]; - uint nlsdar3; /* 0x212bc - DMA 3 Next List Descriptor Address Register */ - uint ssr3; /* 0x212c0 - DMA 3 Source Stride Register */ - uint dsr3; /* 0x212c4 - DMA 3 Destination Stride Register */ - char res21[56]; + struct fsl_dma dma[4]; uint dgsr; /* 0x21300 - DMA General Status Register */ - char res22[3324]; + char res2[3324]; } ccsr_dma_t; /* tsec1-4: 24000-28000 */ -- 2.30.2