From: Keith Packard <keithp@keithp.com>
Date: Sun, 9 Apr 2017 19:59:07 +0000 (-0700)
Subject: cortexelf-v1: Bump SPI pin speed to 40MHz to for sdcard. Fix VGA DMA.
X-Git-Tag: 1.7~43
X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=commitdiff_plain;h=6efa53bafda18313742849a6c4992f09c3e403c3

cortexelf-v1: Bump SPI pin speed to 40MHz to for sdcard. Fix VGA DMA.

Tell the DMA code to leave the DMA engine enabled so the VGA output
can use it.

Signed-off-by: Keith Packard <keithp@keithp.com>
---

diff --git a/src/cortexelf-v1/ao_pins.h b/src/cortexelf-v1/ao_pins.h
index 50add5d3..258ffe31 100644
--- a/src/cortexelf-v1/ao_pins.h
+++ b/src/cortexelf-v1/ao_pins.h
@@ -90,12 +90,12 @@
 #define HAS_SPI_2		1
 #define SPI_2_PB13_PB14_PB15	0
 #define SPI_2_PD1_PD3_PD4	1	/* LED displays, microSD */
-#define SPI_2_OSPEEDR		STM_OSPEEDR_10MHz
+#define SPI_2_OSPEEDR		STM_OSPEEDR_40MHz
 
 #define SPI_2_PORT		(&stm_gpiod)
-#define SPI_2_SCK_PIN		1
-#define SPI_2_MISO_PIN		3
-#define SPI_2_MOSI_PIN		4
+//#define SPI_2_SCK_PIN		1
+//#define SPI_2_MISO_PIN		3
+//#define SPI_2_MOSI_PIN		4
 
 #define HAS_I2C_1		0
 #define I2C_1_PB8_PB9		0
@@ -125,6 +125,8 @@
 #define AO_SDCARD_SPI_MISO_PIN	3
 #define AO_SDCARD_SPI_MOSI_PIN	4
 
+/* VGA */
+#define STM_DMA1_3_STOLEN	1
 /* Buttons */
 
 #define AO_EVENT		1