Module Name: src
Committed By: cliff
Date: Fri Mar 18 00:57:51 UTC 2011
Modified Files:
src/sys/dev/nand: nand_micron.c
Log Message:
- add suport for MT29FxGx family devices
To generate a diff of this commit:
cvs rdiff -u -r1.1 -r1.2 src/sys/dev/nand/nand_micron.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/nand/nand_micron.c
diff -u src/sys/dev/nand/nand_micron.c:1.1 src/sys/dev/nand/nand_micron.c:1.2
--- src/sys/dev/nand/nand_micron.c:1.1 Wed Mar 9 10:05:08 2011
+++ src/sys/dev/nand/nand_micron.c Fri Mar 18 00:57:51 2011
@@ -39,39 +39,123 @@
#include "nand.h"
#include "onfi.h"
+#define MT29F2G08AAC 0xda
+#define MT29F2G08ABC 0xaa
+#define MT29F2G16AAC 0xca
+#define MT29F2G16ABC 0xba
+#define MT29F4G08BAC 0xdc
+#define MT29F8G08FAC 0xdc /* each 4GB section */
+
+#define MT29FxG_PARAM_WIDTH(p) (((p) >> 1) & __BIT(0))
+#define MT29FxG_PAGESIZE (2 * 1024)
+#define MT29FxG_BLOCK_PAGES 64 /* pages per block */
+#define MT29FxG_BLOCKSIZE (128 * 1024) /* not including spares */
+#define MT29FxG_SPARESIZE 64
+
+struct nand_micron_devices {
+ const char *name;
+ uint8_t id;
+ uint8_t width; /* bus width */
+ u_int lun_blocks; /* number of blocks per LUN */
+ u_int num_luns; /* number LUNs */
+};
+
+static const struct nand_micron_devices nand_micron_devices[] = {
+ { "MT29F2G08AAC", MT29F2G08AAC, 8, 2048, 1 },
+ { "MT29F2G08ABC", MT29F2G08ABC, 8, 2048, 1 },
+ { "MT29F2G16AAC", MT29F2G16AAC, 16, 2048, 1 },
+ { "MT29F2G16ABC", MT29F2G16ABC, 16, 2048, 1 },
+ { "MT29F4G08BAC", MT29F4G08BAC, 8, 4096, 1 },
+#ifdef NOTYET
+ /* how do we recognize/match this? */
+ { "MT29F8G08FAC", MT29F8G08FAC, 8, 4096, 2 },
+#endif
+};
+
+static int mt29fxgx_parameters(device_t, struct nand_chip *, u_int8_t, uint8_t);
+
+static const struct nand_micron_devices *
+nand_micron_device_lookup(u_int8_t id)
+{
+ for (int i=0; i < __arraycount(nand_micron_devices); i++)
+ if (nand_micron_devices[i].id == id)
+ return &nand_micron_devices[i];
+ return NULL;
+}
+
int
nand_read_parameters_micron(device_t self, struct nand_chip *chip)
{
- uint8_t byte;
+ uint8_t mfgrid;
+ uint8_t devid;
+ uint8_t dontcare;
+ uint8_t params;
KASSERT(chip->nc_manf_id == NAND_MFR_MICRON);
+ switch (chip->nc_manf_id) {
+ case NAND_MFR_MICRON:
+ break;
+ default:
+ return 1;
+ }
nand_select(self, true);
nand_command(self, ONFI_READ_ID);
nand_address(self, 0x00);
+ nand_read_byte(self, &mfgrid);
+ nand_read_byte(self, &devid);
+ nand_read_byte(self, &dontcare);
+ nand_read_byte(self, ¶ms);
+ nand_select(self, false);
- switch (chip->nc_manf_id) {
- /* three dummy reads */
- nand_read_byte(self, &byte); /* vendor */
- nand_read_byte(self, &byte); /* device */
- nand_read_byte(self, &byte); /* unused */
-
- /* this is the interesting one */
- nand_read_byte(self, &byte);
- /* TODO actually get info */
- nand_select(self, false);
- return 1;
-
- break;
+ KASSERT(chip->nc_manf_id == mfgrid);
+
+ switch(devid) {
+ case MT29F2G08AAC:
+ case MT29F2G08ABC:
+ case MT29F2G16AAC:
+ case MT29F2G16ABC:
+ case MT29F4G08BAC:
+ return mt29fxgx_parameters(self, chip, devid, params);
default:
- nand_select(self, false);
+ aprint_error_dev(self, "unsupported device id %#x\n", devid);
return 1;
}
-
- chip->nc_num_luns = 1;
- chip->nc_lun_blocks = chip->nc_size / chip->nc_block_size;
+}
- nand_select(self, false);
+static int
+mt29fxgx_parameters(device_t self, struct nand_chip *chip,
+ u_int8_t devid, uint8_t params)
+{
+ const struct nand_micron_devices *dp;
+ const char *vendor = "Micron";
+
+ dp = nand_micron_device_lookup(devid);
+ if (dp == NULL) {
+ aprint_error_dev(self, "unknown device id %#x\n", devid);
+ return 1;
+ }
+
+ /*
+ * MT29FxGx params across models are the same
+ * except for luns, blocks per lun, and bus width
+ * (and voltage)
+ */
+ chip->nc_addr_cycles_column = 2; /* XXX */
+ chip->nc_addr_cycles_row = 3; /* XXX */
+ if (dp->width == 16)
+ chip->nc_flags |= NC_BUSWIDTH_16;
+ chip->nc_page_size = MT29FxG_PAGESIZE;
+ chip->nc_block_pages = MT29FxG_BLOCK_PAGES;
+ chip->nc_block_size = MT29FxG_BLOCK_PAGES * MT29FxG_PAGESIZE;
+ chip->nc_spare_size = MT29FxG_SPARESIZE;
+ chip->nc_lun_blocks = dp->lun_blocks;
+ chip->nc_num_luns = dp->num_luns;
+ chip->nc_size = MT29FxG_PAGESIZE * MT29FxG_BLOCK_PAGES *
+ dp->lun_blocks * dp->num_luns;
+
+ aprint_normal_dev(self, "%s %s, size %ldMB\n",
+ vendor, dp->name, chip->nc_size >> 20);
return 0;
}
