MIPS: ath79: Add AR933x specific WMAC setup code

The wireless MAC of the AR933x SoCs uses different base address, and
requires different setup code.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3030/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

3 files changed, 46 insertions, 5 deletions

diff --git a/arch/mips/ath79/dev-ar913x-wmac.c b/arch/mips/ath79/dev-ar913x-wmac.c
index 21118fb461ab..c424e9a2160d 100644
--- a/arch/mips/ath79/dev-ar913x-wmac.c
+++ b/arch/mips/ath79/dev-ar913x-wmac.c
@@ -1,7 +1,7 @@
 /*
- *  Atheros AR913X SoC built-in WMAC device support
+ *  Atheros AR913X/AR933X SoC built-in WMAC device support
  *
- *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
  *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
  *
  *  This program is free software; you can redistribute it and/or modify it
@@ -55,10 +55,49 @@ static void __init ar913x_wmac_setup(void)
         ath79_wmac_resources[0].end = AR913X_WMAC_BASE + AR913X_WMAC_SIZE - 1;
 }
 
+
+static int ar933x_wmac_reset(void)
+{
+        ath79_device_reset_clear(AR933X_RESET_WMAC);
+        ath79_device_reset_set(AR933X_RESET_WMAC);
+
+        return 0;
+}
+
+static int ar933x_r1_get_wmac_revision(void)
+{
+        return ath79_soc_rev;
+}
+
+static void __init ar933x_wmac_setup(void)
+{
+        u32 t;
+
+        ar933x_wmac_reset();
+
+        ath79_wmac_device.name = "ar933x_wmac";
+
+        ath79_wmac_resources[0].start = AR933X_WMAC_BASE;
+        ath79_wmac_resources[0].end = AR933X_WMAC_BASE + AR933X_WMAC_SIZE - 1;
+
+        t = ath79_reset_rr(AR933X_RESET_REG_BOOTSTRAP);
+        if (t & AR933X_BOOTSTRAP_REF_CLK_40)
+                ath79_wmac_data.is_clk_25mhz = false;
+        else
+                ath79_wmac_data.is_clk_25mhz = true;
+
+        if (ath79_soc_rev == 1)
+                ath79_wmac_data.get_mac_revision = ar933x_r1_get_wmac_revision;
+
+        ath79_wmac_data.external_reset = ar933x_wmac_reset;
+}
+
 void __init ath79_register_wmac(u8 *cal_data)
 {
         if (soc_is_ar913x())
                 ar913x_wmac_setup();
+        if (soc_is_ar933x())
+                ar933x_wmac_setup();
         else
                 BUG();
 
diff --git a/arch/mips/ath79/dev-ar913x-wmac.h b/arch/mips/ath79/dev-ar913x-wmac.h
index de1d78497fc9..c9cd8709f090 100644
--- a/arch/mips/ath79/dev-ar913x-wmac.h
+++ b/arch/mips/ath79/dev-ar913x-wmac.h
@@ -1,7 +1,7 @@
 /*
- *  Atheros AR913X SoC built-in WMAC device support
+ *  Atheros AR913X/AR933X SoC built-in WMAC device support
  *
- *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
  *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
  *
  *  This program is free software; you can redistribute it and/or modify it
diff --git a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
index 733bacace778..2f0becb4ec8f 100644
--- a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
+++ b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
@@ -55,7 +55,8 @@
 
 #define AR933X_UART_BASE        (AR71XX_APB_BASE + 0x00020000)
 #define AR933X_UART_SIZE        0x14
-
+#define AR933X_WMAC_BASE        (AR71XX_APB_BASE + 0x00100000)
+#define AR933X_WMAC_SIZE        0x20000
 #define AR933X_EHCI_BASE        0x1b000000
 #define AR933X_EHCI_SIZE        0x1000
 
@@ -233,6 +234,7 @@
 #define AR913X_RESET_USB_HOST           BIT(5)
 #define AR913X_RESET_USB_PHY            BIT(4)
 
+#define AR933X_RESET_WMAC               BIT(11)
 #define AR933X_RESET_USB_HOST           BIT(5)
 #define AR933X_RESET_USB_PHY            BIT(4)
 #define AR933X_RESET_USBSUS_OVERRIDE    BIT(3)