mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-05 04:54:41 +02:00
e0b80e41eb
Tested on the following boards: ALFA AP96 TL-MR3220 v1 TL-WR1043ND v1 TL-WR2543ND v1 TL-WR703N v1 TL-WR741ND v1 TL-WR741ND v4 WNDR3700 v1 WZR-HP-G300NH git-svn-id: svn://svn.openwrt.org/openwrt/trunk@29868 3c298f89-4303-0410-b956-a3cf2f4a3e73
149 lines
4.5 KiB
Diff
149 lines
4.5 KiB
Diff
From 29c8b2eef2011bf9392479487a51f6927892bfd6 Mon Sep 17 00:00:00 2001
|
|
From: Gabor Juhos <juhosg@openwrt.org>
|
|
Date: Mon, 20 Jun 2011 21:26:04 +0200
|
|
Subject: [PATCH 07/27] MIPS: ath79: add AR933X specific clock init
|
|
|
|
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
|
|
Cc: linux-mips@linux-mips.org
|
|
Cc: Kathy Giori <kgiori@qca.qualcomm.com>
|
|
Cc: "Luis R. Rodriguez" <rodrigue@qca.qualcomm.com>
|
|
Patchwork: https://patchwork.linux-mips.org/patch/2522/
|
|
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
|
---
|
|
arch/mips/ath79/clock.c | 55 ++++++++++++++++++++++++
|
|
arch/mips/include/asm/mach-ath79/ar71xx_regs.h | 22 +++++++++
|
|
arch/mips/include/asm/mach-ath79/ath79.h | 6 +++
|
|
3 files changed, 83 insertions(+), 0 deletions(-)
|
|
|
|
--- a/arch/mips/ath79/clock.c
|
|
+++ b/arch/mips/ath79/clock.c
|
|
@@ -110,6 +110,59 @@ static void __init ar913x_clocks_init(vo
|
|
ath79_uart_clk.rate = ath79_ahb_clk.rate;
|
|
}
|
|
|
|
+static void __init ar933x_clocks_init(void)
|
|
+{
|
|
+ u32 clock_ctrl;
|
|
+ u32 cpu_config;
|
|
+ u32 freq;
|
|
+ u32 t;
|
|
+
|
|
+ t = ath79_reset_rr(AR933X_RESET_REG_BOOTSTRAP);
|
|
+ if (t & AR933X_BOOTSTRAP_REF_CLK_40)
|
|
+ ath79_ref_clk.rate = (40 * 1000 * 1000);
|
|
+ else
|
|
+ ath79_ref_clk.rate = (25 * 1000 * 1000);
|
|
+
|
|
+ clock_ctrl = ath79_pll_rr(AR933X_PLL_CLOCK_CTRL_REG);
|
|
+ if (clock_ctrl & AR933X_PLL_CLOCK_CTRL_BYPASS) {
|
|
+ ath79_cpu_clk.rate = ath79_ref_clk.rate;
|
|
+ ath79_ahb_clk.rate = ath79_ref_clk.rate;
|
|
+ ath79_ddr_clk.rate = ath79_ref_clk.rate;
|
|
+ } else {
|
|
+ cpu_config = ath79_pll_rr(AR933X_PLL_CPU_CONFIG_REG);
|
|
+
|
|
+ t = (cpu_config >> AR933X_PLL_CPU_CONFIG_REFDIV_SHIFT) &
|
|
+ AR933X_PLL_CPU_CONFIG_REFDIV_MASK;
|
|
+ freq = ath79_ref_clk.rate / t;
|
|
+
|
|
+ t = (cpu_config >> AR933X_PLL_CPU_CONFIG_NINT_SHIFT) &
|
|
+ AR933X_PLL_CPU_CONFIG_NINT_MASK;
|
|
+ freq *= t;
|
|
+
|
|
+ t = (cpu_config >> AR933X_PLL_CPU_CONFIG_OUTDIV_SHIFT) &
|
|
+ AR933X_PLL_CPU_CONFIG_OUTDIV_MASK;
|
|
+ if (t == 0)
|
|
+ t = 1;
|
|
+
|
|
+ freq >>= t;
|
|
+
|
|
+ t = ((clock_ctrl >> AR933X_PLL_CLOCK_CTRL_CPU_DIV_SHIFT) &
|
|
+ AR933X_PLL_CLOCK_CTRL_CPU_DIV_MASK) + 1;
|
|
+ ath79_cpu_clk.rate = freq / t;
|
|
+
|
|
+ t = ((clock_ctrl >> AR933X_PLL_CLOCK_CTRL_DDR_DIV_SHIFT) &
|
|
+ AR933X_PLL_CLOCK_CTRL_DDR_DIV_MASK) + 1;
|
|
+ ath79_ddr_clk.rate = freq / t;
|
|
+
|
|
+ t = ((clock_ctrl >> AR933X_PLL_CLOCK_CTRL_AHB_DIV_SHIFT) &
|
|
+ AR933X_PLL_CLOCK_CTRL_AHB_DIV_MASK) + 1;
|
|
+ ath79_ahb_clk.rate = freq / t;
|
|
+ }
|
|
+
|
|
+ ath79_wdt_clk.rate = ath79_ref_clk.rate;
|
|
+ ath79_uart_clk.rate = ath79_ref_clk.rate;
|
|
+}
|
|
+
|
|
void __init ath79_clocks_init(void)
|
|
{
|
|
if (soc_is_ar71xx())
|
|
@@ -118,6 +171,8 @@ void __init ath79_clocks_init(void)
|
|
ar724x_clocks_init();
|
|
else if (soc_is_ar913x())
|
|
ar913x_clocks_init();
|
|
+ else if (soc_is_ar933x())
|
|
+ ar933x_clocks_init();
|
|
else
|
|
BUG();
|
|
|
|
--- a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
|
|
+++ b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
|
|
@@ -123,6 +123,24 @@
|
|
#define AR913X_AHB_DIV_SHIFT 19
|
|
#define AR913X_AHB_DIV_MASK 0x1
|
|
|
|
+#define AR933X_PLL_CPU_CONFIG_REG 0x00
|
|
+#define AR933X_PLL_CLOCK_CTRL_REG 0x08
|
|
+
|
|
+#define AR933X_PLL_CPU_CONFIG_NINT_SHIFT 10
|
|
+#define AR933X_PLL_CPU_CONFIG_NINT_MASK 0x3f
|
|
+#define AR933X_PLL_CPU_CONFIG_REFDIV_SHIFT 16
|
|
+#define AR933X_PLL_CPU_CONFIG_REFDIV_MASK 0x1f
|
|
+#define AR933X_PLL_CPU_CONFIG_OUTDIV_SHIFT 23
|
|
+#define AR933X_PLL_CPU_CONFIG_OUTDIV_MASK 0x7
|
|
+
|
|
+#define AR933X_PLL_CLOCK_CTRL_BYPASS BIT(2)
|
|
+#define AR933X_PLL_CLOCK_CTRL_CPU_DIV_SHIFT 5
|
|
+#define AR933X_PLL_CLOCK_CTRL_CPU_DIV_MASK 0x3
|
|
+#define AR933X_PLL_CLOCK_CTRL_DDR_DIV_SHIFT 10
|
|
+#define AR933X_PLL_CLOCK_CTRL_DDR_DIV_MASK 0x3
|
|
+#define AR933X_PLL_CLOCK_CTRL_AHB_DIV_SHIFT 15
|
|
+#define AR933X_PLL_CLOCK_CTRL_AHB_DIV_MASK 0x7
|
|
+
|
|
/*
|
|
* USB_CONFIG block
|
|
*/
|
|
@@ -155,6 +173,8 @@
|
|
|
|
#define AR724X_RESET_REG_RESET_MODULE 0x1c
|
|
|
|
+#define AR933X_RESET_REG_BOOTSTRAP 0xac
|
|
+
|
|
#define MISC_INT_ETHSW BIT(12)
|
|
#define MISC_INT_TIMER4 BIT(10)
|
|
#define MISC_INT_TIMER3 BIT(9)
|
|
@@ -204,6 +224,8 @@
|
|
#define AR913X_RESET_USB_HOST BIT(5)
|
|
#define AR913X_RESET_USB_PHY BIT(4)
|
|
|
|
+#define AR933X_BOOTSTRAP_REF_CLK_40 BIT(0)
|
|
+
|
|
#define REV_ID_MAJOR_MASK 0xfff0
|
|
#define REV_ID_MAJOR_AR71XX 0x00a0
|
|
#define REV_ID_MAJOR_AR913X 0x00b0
|
|
--- a/arch/mips/include/asm/mach-ath79/ath79.h
|
|
+++ b/arch/mips/include/asm/mach-ath79/ath79.h
|
|
@@ -68,6 +68,12 @@ static inline int soc_is_ar913x(void)
|
|
ath79_soc == ATH79_SOC_AR9132);
|
|
}
|
|
|
|
+static inline int soc_is_ar933x(void)
|
|
+{
|
|
+ return (ath79_soc == ATH79_SOC_AR9330 ||
|
|
+ ath79_soc == ATH79_SOC_AR9331);
|
|
+}
|
|
+
|
|
extern void __iomem *ath79_ddr_base;
|
|
extern void __iomem *ath79_pll_base;
|
|
extern void __iomem *ath79_reset_base;
|