From 75dd9835f6fe38061452b97939f311a9a58a3af4 Mon Sep 17 00:00:00 2001
From: Armando <douyiwen@espressif.com>
Date: Mon, 1 Jun 2020 15:26:57 +0800
Subject: [PATCH] esp_flash: fix cache exception when CS pin is through IOMUX

---
 components/spi_flash/linker.lf | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/components/spi_flash/linker.lf b/components/spi_flash/linker.lf
index 5e2c1af32f..0ea72aaa43 100644
--- a/components/spi_flash/linker.lf
+++ b/components/spi_flash/linker.lf
@@ -7,3 +7,9 @@ entries:
     spi_flash_chip_gd(noflash)
     memspi_host_driver (noflash)
 
+# `spi_bus_add_flash_device` uses these functions when the cache is disabled
+[mapping:driver_spiflash]
+archive: libdriver.a
+entries:
+    gpio:gpio_iomux_out (noflash)
+    gpio:gpio_iomux_in (noflash)