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Commit fe2ee139 authored by Hariprasad Shenai's avatar Hariprasad Shenai Committed by David S. Miller
Browse files

cxgb4: Add support to S25FL032P flash 



Add support for Spansion S25FL032P flash
Based on original work by Dimitris Michailidis

Signed-off-by: default avatarHariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 60d42bf6

drivers/net/ethernet/chelsio/cxgb4/t4_hw.c

+20 −0
Original line number Original line Diff line number Diff line
@@ -3850,8 +3850,20 @@ int t4_wait_dev_ready(struct adapter *adap) 
	return t4_read_reg(adap, PL_WHOAMI) != 0xffffffff ? 0 : -EIO;

	return t4_read_reg(adap, PL_WHOAMI) != 0xffffffff ? 0 : -EIO;

}

}





struct flash_desc {

	u32 vendor_and_model_id;

	u32 size_mb;

};



static int get_flash_params(struct adapter *adap)

static int get_flash_params(struct adapter *adap)

{

{

	/* Table for non-Numonix supported flash parts.  Numonix parts are left

	 * to the preexisting code.  All flash parts have 64KB sectors.

	 */

	static struct flash_desc supported_flash[] = {

		{ 0x150201, 4 << 20 },       /* Spansion 4MB S25FL032P */

	};



	int ret;

	int ret;

	u32 info;

	u32 info;
@@ -3862,6 +3874,14 @@ static int get_flash_params(struct adapter *adap) 
	if (ret)

	if (ret)

		return ret;

		return ret;





	for (ret = 0; ret < ARRAY_SIZE(supported_flash); ++ret)

		if (supported_flash[ret].vendor_and_model_id == info) {

			adap->params.sf_size = supported_flash[ret].size_mb;

			adap->params.sf_nsec =

				adap->params.sf_size / SF_SEC_SIZE;

			return 0;

		}



	if ((info & 0xff) != 0x20)             /* not a Numonix flash */

	if ((info & 0xff) != 0x20)             /* not a Numonix flash */

		return -EINVAL;

		return -EINVAL;

	info >>= 16;                           /* log2 of size */

	info >>= 16;                           /* log2 of size */