diff options
Diffstat (limited to 'drivers/memory/omap-gpmc.c')
| -rw-r--r-- | drivers/memory/omap-gpmc.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/drivers/memory/omap-gpmc.c b/drivers/memory/omap-gpmc.c index 8dc6e3b1c44a..bfe4e8710973 100644 --- a/drivers/memory/omap-gpmc.c +++ b/drivers/memory/omap-gpmc.c @@ -94,6 +94,14 @@ #define GPMC_CS_SIZE 0x30 #define GPMC_BCH_SIZE 0x10 +/* + * The first 1MB of GPMC address space is typically mapped to + * the internal ROM. Never allocate the first page, to + * facilitate bug detection; even if we didn't boot from ROM. + * As GPMC minimum partition size is 16MB we can only start from + * there. + */ +#define GPMC_MEM_START 0x1000000 #define GPMC_MEM_END 0x3FFFFFFF #define GPMC_CHUNK_SHIFT 24 /* 16 MB */ @@ -1297,12 +1305,7 @@ static void gpmc_mem_init(void) { int cs; - /* - * The first 1MB of GPMC address space is typically mapped to - * the internal ROM. Never allocate the first page, to - * facilitate bug detection; even if we didn't boot from ROM. - */ - gpmc_mem_root.start = SZ_1M; + gpmc_mem_root.start = GPMC_MEM_START; gpmc_mem_root.end = GPMC_MEM_END; /* Reserve all regions that has been set up by bootloader */ @@ -1966,6 +1969,15 @@ static int gpmc_probe_generic_child(struct platform_device *pdev, if (ret < 0) { dev_err(&pdev->dev, "cannot remap GPMC CS %d to %pa\n", cs, &res.start); + if (res.start < GPMC_MEM_START) { + dev_info(&pdev->dev, + "GPMC CS %d start cannot be lesser than 0x%x\n", + cs, GPMC_MEM_START); + } else if (res.end > GPMC_MEM_END) { + dev_info(&pdev->dev, + "GPMC CS %d end cannot be greater than 0x%x\n", + cs, GPMC_MEM_END); + } goto err; } |