sb/amd/sb700: Drop support

Relocatable ramstage, postcar stage and C_ENVIRONMENT_BOOTBLOCK are
now mandatory features, which platforms using this code lack.

Change-Id: Iffa4f54b2d1b43b6710447e69061c6ed433bff1d
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36967
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 0 insertions, 129 deletions

diff --git a/src/southbridge/amd/sb700/spi.c b/src/southbridge/amd/sb700/spi.c
deleted file mode 100644
index f772f755ba..0000000000
--- a/src/southbridge/amd/sb700/spi.c
+++ /dev/null
@@ -1,129 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
- * Copyright (C) 2012 Advanced Micro Devices, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <device/mmio.h>
-#include <console/console.h>
-#include <spi-generic.h>
-#include <spi_flash.h>
-#include <device/device.h>
-#include <device/pci.h>
-#include <device/pci_ops.h>
-#include <types.h>
-
-#define AMD_SB_SPI_TX_LEN 8
-
-static uint32_t get_spi_bar(void)
-{
-	struct device *dev;
-
-	dev = pcidev_on_root(0x14, 3);
-	return pci_read_config32(dev, 0xa0) & ~0x1f;
-}
-
-static void reset_internal_fifo_pointer(void)
-{
-	uint32_t spibar = get_spi_bar();
-
-	do {
-		write8((void *)(spibar + 2),
-		read8((void *)(spibar + 2)) | 0x10);
-	} while (read8((void *)(spibar + 0xd)) & 0x7);
-}
-
-static void execute_command(void)
-{
-	uint32_t spibar = get_spi_bar();
-
-	write8((void *)(spibar + 2), read8((void *)(spibar + 2)) | 1);
-
-	while ((read8((void *)(spibar + 2)) & 1) &&
-		(read8((void *)(spibar+3)) & 0x80));
-}
-
-static int spi_ctrlr_xfer(const struct spi_slave *slave, const void *dout,
-		size_t bytesout, void *din, size_t bytesin)
-{
-	/* First byte is cmd which cannot be sent through the FIFO. */
-	u8 cmd = *(u8 *)dout++;
-	u8 readoffby1;
-	u8 readwrite;
-	size_t count;
-
-	uint32_t spibar = get_spi_bar();
-
-	bytesout--;
-
-	/*
-	 * Check if this is a write command attempting to transfer more bytes
-	 * than the controller can handle. Iterations for writes are not
-	 * supported here because each SPI write command needs to be preceded
-	 * and followed by other SPI commands, and this sequence is controlled
-	 * by the SPI chip driver.
-	 */
-	if (bytesout > AMD_SB_SPI_TX_LEN) {
-		printk(BIOS_DEBUG, "FCH SPI: Too much to write. Does your SPI chip driver use"
-		     " spi_crop_chunk()?\n");
-		return -1;
-	}
-
-	readoffby1 = bytesout ? 0 : 1;
-
-	readwrite = (bytesin + readoffby1) << 4 | bytesout;
-	write8((void *)(spibar + 1), readwrite);
-	write8((void *)(spibar + 0), cmd);
-
-	reset_internal_fifo_pointer();
-	for (count = 0; count < bytesout; count++, dout++) {
-		write8((void *)(spibar + 0x0C), *(u8 *)dout);
-	}
-
-	reset_internal_fifo_pointer();
-	execute_command();
-
-	reset_internal_fifo_pointer();
-	/* Skip the bytes we sent. */
-	for (count = 0; count < bytesout; count++) {
-		cmd = read8((void *)(spibar + 0x0C));
-	}
-	/* read response bytes */
-	for (count = 0; count < bytesin; count++, din++) {
-		*(u8 *)din = read8((void *)(spibar + 0x0C));
-	}
-
-	return 0;
-}
-
-static int xfer_vectors(const struct spi_slave *slave,
-			struct spi_op vectors[], size_t count)
-{
-	return spi_flash_vector_helper(slave, vectors, count, spi_ctrlr_xfer);
-}
-
-static const struct spi_ctrlr spi_ctrlr = {
-	.xfer_vector = xfer_vectors,
-	.max_xfer_size = AMD_SB_SPI_TX_LEN,
-	.flags = SPI_CNTRLR_DEDUCT_CMD_LEN,
-};
-
-const struct spi_ctrlr_buses spi_ctrlr_bus_map[] = {
-	{
-		.ctrlr = &spi_ctrlr,
-		.bus_start = 0,
-		.bus_end = 0,
-	},
-};
-
-const size_t spi_ctrlr_bus_map_count = ARRAY_SIZE(spi_ctrlr_bus_map);