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https://github.com/AsahiLinux/u-boot
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mpc512x: add common LAW and Chip Select configuration
Currently each mpc512x board has its own LAW and CS config code, we should avoid this code duplication. Allow all boards to use common code by only defining LAW and CS config macros like CONFIG_SYS_CSx_START, CONFIG_SYS_CSx_SIZE and CONFIG_SYS_CSx_CFG. Also allow common configuration of additional CS parameters by CONFIG_SYS_CS_ALETIMING, CONFIG_SYS_CS_BURST, CONFIG_SYS_CS_DEADCYCLE and CONFIG_SYS_CS_HOLDCYCLE options. Signed-off-by: Anatolij Gustschin <agust@denx.de>
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aed7548448
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1 changed files with 96 additions and 0 deletions
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@ -26,6 +26,7 @@
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#include <common.h>
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#include <asm/io.h>
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#include <asm/mpc512x.h>
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#include <asm/processor.h>
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DECLARE_GLOBAL_DATA_PTR;
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@ -43,6 +44,101 @@ void cpu_init_f (volatile immap_t * im)
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/* Clear initial global data */
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memset ((void *) gd, 0, sizeof (gd_t));
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/* Local Window and chip select configuration */
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#if defined(CONFIG_SYS_CS0_START) && defined(CONFIG_SYS_CS0_SIZE)
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out_be32(&im->sysconf.lpcs0aw,
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CSAW_START(CONFIG_SYS_CS0_START) |
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CSAW_STOP(CONFIG_SYS_CS0_START, CONFIG_SYS_CS0_SIZE));
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sync_law(&im->sysconf.lpcs0aw);
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#endif
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#if defined(CONFIG_SYS_CS0_CFG)
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out_be32(&im->lpc.cs_cfg[0], CONFIG_SYS_CS0_CFG);
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#endif
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#if defined(CONFIG_SYS_CS1_START) && defined(CONFIG_SYS_CS1_SIZE)
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out_be32(&im->sysconf.lpcs1aw,
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CSAW_START(CONFIG_SYS_CS1_START) |
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CSAW_STOP(CONFIG_SYS_CS1_START, CONFIG_SYS_CS1_SIZE));
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sync_law(&im->sysconf.lpcs1aw);
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#endif
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#if defined(CONFIG_SYS_CS1_CFG)
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out_be32(&im->lpc.cs_cfg[1], CONFIG_SYS_CS1_CFG);
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#endif
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#if defined(CONFIG_SYS_CS2_START) && (defined CONFIG_SYS_CS2_SIZE)
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out_be32(&im->sysconf.lpcs2aw,
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CSAW_START(CONFIG_SYS_CS2_START) |
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CSAW_STOP(CONFIG_SYS_CS2_START, CONFIG_SYS_CS2_SIZE));
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sync_law(&im->sysconf.lpcs2aw);
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#endif
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#if defined(CONFIG_SYS_CS2_CFG)
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out_be32(&im->lpc.cs_cfg[2], CONFIG_SYS_CS2_CFG);
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#endif
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#if defined(CONFIG_SYS_CS3_START) && defined(CONFIG_SYS_CS3_SIZE)
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out_be32(&im->sysconf.lpcs3aw,
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CSAW_START(CONFIG_SYS_CS3_START) |
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CSAW_STOP(CONFIG_SYS_CS3_START, CONFIG_SYS_CS3_SIZE));
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sync_law(&im->sysconf.lpcs3aw);
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#endif
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#if defined(CONFIG_SYS_CS3_CFG)
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out_be32(&im->lpc.cs_cfg[3], CONFIG_SYS_CS3_CFG);
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#endif
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#if defined(CONFIG_SYS_CS4_START) && defined(CONFIG_SYS_CS4_SIZE)
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out_be32(&im->sysconf.lpcs4aw,
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CSAW_START(CONFIG_SYS_CS4_START) |
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CSAW_STOP(CONFIG_SYS_CS4_START, CONFIG_SYS_CS4_SIZE));
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sync_law(&im->sysconf.lpcs4aw);
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#endif
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#if defined(CONFIG_SYS_CS4_CFG)
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out_be32(&im->lpc.cs_cfg[4], CONFIG_SYS_CS4_CFG);
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#endif
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#if defined(CONFIG_SYS_CS5_START) && defined(CONFIG_SYS_CS5_SIZE)
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out_be32(&im->sysconf.lpcs5aw,
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CSAW_START(CONFIG_SYS_CS5_START) |
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CSAW_STOP(CONFIG_SYS_CS5_START, CONFIG_SYS_CS5_SIZE));
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sync_law(&im->sysconf.lpcs5aw);
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#endif
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#if defined(CONFIG_SYS_CS5_CFG)
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out_be32(&im->lpc.cs_cfg[5], CONFIG_SYS_CS5_CFG);
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#endif
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#if defined(CONFIG_SYS_CS6_START) && defined(CONFIG_SYS_CS6_SIZE)
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out_be32(&im->sysconf.lpcs6aw,
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CSAW_START(CONFIG_SYS_CS6_START) |
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CSAW_STOP(CONFIG_SYS_CS6_START, CONFIG_SYS_CS6_SIZE));
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sync_law(&im->sysconf.lpcs6aw);
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#endif
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#if defined(CONFIG_SYS_CS6_CFG)
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out_be32(&im->lpc.cs_cfg[6], CONFIG_SYS_CS6_CFG);
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#endif
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#if defined(CONFIG_SYS_CS7_START) && defined(CONFIG_SYS_CS7_SIZE)
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out_be32(&im->sysconf.lpcs7aw,
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CSAW_START(CONFIG_SYS_CS7_START) |
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CSAW_STOP(CONFIG_SYS_CS7_START, CONFIG_SYS_CS7_SIZE));
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sync_law(&im->sysconf.lpcs7aw);
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#endif
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#if defined(CONFIG_SYS_CS7_CFG)
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out_be32(&im->lpc.cs_cfg[7], CONFIG_SYS_CS7_CFG);
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#endif
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#if defined CONFIG_SYS_CS_ALETIMING
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if (SVR_MJREV(in_be32(&im->sysconf.spridr)) >= 2)
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out_be32(&im->lpc.altr, CONFIG_SYS_CS_ALETIMING);
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#endif
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#if defined CONFIG_SYS_CS_BURST
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out_be32(&im->lpc.cs_bcr, CONFIG_SYS_CS_BURST);
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#endif
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#if defined CONFIG_SYS_CS_DEADCYCLE
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out_be32(&im->lpc.cs_dccr, CONFIG_SYS_CS_DEADCYCLE);
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#endif
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#if defined CONFIG_SYS_CS_HOLDCYCLE
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out_be32(&im->lpc.cs_hccr, CONFIG_SYS_CS_HOLDCYCLE);
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#endif
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/* system performance tweaking */
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#ifdef CONFIG_SYS_ACR_PIPE_DEP
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