openwrtv3/target/linux/brcm63xx/patches-3.10/051-MIPS-BCM63XX-setup-the-HSSPI-clock-rate.patch
Jonas Gorski f08f0cafc2 brcm63xx: update HSSPI driver with upstream submission
Update the HSSPI driver with the upstream submitted one that has a
workaround for the auto cs down issue.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

SVN-Revision: 39264
2014-01-13 12:11:45 +00:00

36 lines
914 B
Diff

From c8b7d2630d907025ce30989bddd01f4f0f13c103 Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jogo@openwrt.org>
Date: Wed, 20 Nov 2013 17:22:40 +0100
Subject: [PATCH 2/5] MIPS: BCM63XX: setup the HSSPI clock rate
Properly set up the HSSPI clock rate depending on the SoC's PLL rate.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
---
arch/mips/bcm63xx/clk.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
--- a/arch/mips/bcm63xx/clk.c
+++ b/arch/mips/bcm63xx/clk.c
@@ -378,3 +378,21 @@ void clk_put(struct clk *clk)
}
EXPORT_SYMBOL(clk_put);
+
+#define HSSPI_PLL_HZ_6328 133333333
+#define HSSPI_PLL_HZ_6362 400000000
+
+static int __init bcm63xx_clk_init(void)
+{
+ switch (bcm63xx_get_cpu_id()) {
+ case BCM6328_CPU_ID:
+ clk_hsspi.rate = HSSPI_PLL_HZ_6328;
+ break;
+ case BCM6362_CPU_ID:
+ clk_hsspi.rate = HSSPI_PLL_HZ_6362;
+ break;
+ }
+
+ return 0;
+}
+arch_initcall(bcm63xx_clk_init);