ichspi.c: derive hsfc_fcycle from ctx in ich_start_hwseq_xfer()

Allow helpers to derive driver specific data from the driver
specific context instead of being a closure over a static
global variable.

Change-Id: Ib0ccf4b32fd1e2be2ecc3a4a4c6e397c8e901a0a
Signed-off-by: Edward O'Callaghan <quasisec@google.com>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/68773
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <felixsinger@posteo.net>
Reviewed-by: Subrata Banik <subratabanik@google.com>
---
M ichspi.c
1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/ichspi.c b/ichspi.c
index 5d9fe0c..bbd2c91 100644
--- a/ichspi.c
+++ b/ichspi.c
@@ -1350,6 +1350,7 @@
 		uint32_t addr_mask)
 {
 	uint16_t hsfc;
+	struct hwseq_data *hwseq_data = get_hwseq_data_from_context(flash);
 
 	/* Sets flash_addr in FADDR */
 	ich_hwseq_set_addr(flash_addr, addr_mask);
@@ -1359,7 +1360,7 @@
 
 	/* Set up transaction parameters. */
 	hsfc = REGREAD16(ICH9_REG_HSFC);
-	hsfc &= ~g_hwseq_data.hsfc_fcycle; /* clear operation */
+	hsfc &= ~hwseq_data->hsfc_fcycle; /* clear operation */
 	hsfc |= hsfc_cycle;
 	hsfc |= HSFC_FDBC_VAL(len - 1);
 	hsfc |= HSFC_FGO; /* start */

