flashchips: Add XMC XM25RH256C

There is no public datasheet available. However, given that all the
512C variants are almost identical,  we're going to assume the same
for the RH256C. That is, a QH256C plus RPMC features. Its device id
has been confirmed by Priyo on the flashprog mailing list.

Change-Id: Ie4c5a3102a0ba00b5e5683988959df17cbc5c1b7
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.sourcearcade.org/c/flashprog/+/576
diff --git a/flashchips.c b/flashchips.c
index 6dc4193..6f28a24 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -26152,6 +26152,68 @@
 
 	{
 		.vendor		= "XMC",
+		.name		= "XM25RH256C",
+		.bustype	= BUS_SPI,
+		.id.type	= ID_SPI_RDID,
+		.id.manufacture	= ST_ID,
+		.id.model	= XMC_XM25RH256C,
+		.total_size	= 32768,
+		.page_size	= 256,
+		/* supports SFDP */
+		.feature_bits	= FEATURE_WRSR_EITHER | FEATURE_WRSR_EXT2 | FEATURE_WRSR2 | FEATURE_WRSR3 |
+				  FEATURE_OTP | FEATURE_4BA | FEATURE_QPI_SRP,
+		.dummy_cycles	= { .qpi_read_params = { 2, 4, 6, 8 } },
+		.tested		= TEST_UNTESTED,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = { {4 * 1024, 8192} },
+				.block_erase = spi_block_erase_21,
+			}, {
+				.eraseblocks = { {4 * 1024, 8192} },
+				.block_erase = spi_block_erase_20,
+			}, {
+				.eraseblocks = { {32 * 1024, 1024} },
+				.block_erase = spi_block_erase_52,
+			}, {
+				.eraseblocks = { {64 * 1024, 512} },
+				.block_erase = spi_block_erase_dc,
+			}, {
+				.eraseblocks = { {64 * 1024, 512} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {32 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_60,
+			}, {
+				.eraseblocks = { {32 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_bp3_srwd,
+		.unlock		= spi_disable_blockprotect_bp3_srwd,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read,
+		.voltage	= {2700, 3600},
+		.reg_bits	=
+		{
+			.qe	= {STATUS2, 1, RW},
+			.dc	= {{STATUS3, 3, RW}, {STATUS3, 4, RW}}, /* for SPI mode only */
+			.srp    = {STATUS1, 7, RW},
+			.srl    = {STATUS2, 0, RW},
+			.bp     = {{STATUS1, 2, RW}, {STATUS1, 3, RW}, {STATUS1, 4, RW}, {STATUS1, 5, RW}},
+			.tb     = {STATUS1, 6, RW},
+			.cmp    = {STATUS2, 6, RW},
+		},
+		.wp_write_cfg	= spi_wp_write_cfg,
+		.wp_read_cfg	= spi_wp_read_cfg,
+		.wp_get_ranges	= spi_wp_get_available_ranges,
+		.decode_range	= decode_range_spi25,
+		.prepare_access	= spi_prepare_io,
+		.finish_access	= spi_finish_io,
+	},
+
+	{
+		.vendor		= "XMC",
 		.name		= "XM25RH512C",
 		.bustype	= BUS_SPI,
 		.id.type	= ID_SPI_RDID,