diff options
Diffstat (limited to 'target/linux/ar71xx/patches-3.2/006-MIPS-ath79-Add-early-printk-support-for-the-AR933X-S.patch')
| -rw-r--r-- | target/linux/ar71xx/patches-3.2/006-MIPS-ath79-Add-early-printk-support-for-the-AR933X-S.patch | 208 |
1 files changed, 0 insertions, 208 deletions
diff --git a/target/linux/ar71xx/patches-3.2/006-MIPS-ath79-Add-early-printk-support-for-the-AR933X-S.patch b/target/linux/ar71xx/patches-3.2/006-MIPS-ath79-Add-early-printk-support-for-the-AR933X-S.patch deleted file mode 100644 index 557700899d..0000000000 --- a/target/linux/ar71xx/patches-3.2/006-MIPS-ath79-Add-early-printk-support-for-the-AR933X-S.patch +++ /dev/null @@ -1,208 +0,0 @@ -From 84ead7964e423c37a73da30a1a2c4c486f74242d Mon Sep 17 00:00:00 2001 -From: Gabor Juhos <juhosg@openwrt.org> -Date: Mon, 20 Jun 2011 21:26:03 +0200 -Subject: [PATCH 06/27] MIPS: ath79: Add early printk support for the AR933X SoCs - -The AR933X SoCs are using a different UART, thus require -different code for early printk support. - -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/2521/ -Signed-off-by: Ralf Baechle <ralf@linux-mips.org> ---- - arch/mips/ath79/early_printk.c | 76 +++++++++++++++++++++--- - arch/mips/include/asm/mach-ath79/ar71xx_regs.h | 3 + - arch/mips/include/asm/mach-ath79/ar933x_uart.h | 67 +++++++++++++++++++++ - 3 files changed, 137 insertions(+), 9 deletions(-) - create mode 100644 arch/mips/include/asm/mach-ath79/ar933x_uart.h - ---- a/arch/mips/ath79/early_printk.c -+++ b/arch/mips/ath79/early_printk.c -@@ -1,7 +1,7 @@ - /* -- * Atheros AR71XX/AR724X/AR913X SoC early printk support -+ * Atheros AR7XXX/AR9XXX SoC early printk 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 -@@ -10,27 +10,85 @@ - */ - - #include <linux/io.h> -+#include <linux/errno.h> - #include <linux/serial_reg.h> - #include <asm/addrspace.h> - -+#include <asm/mach-ath79/ath79.h> - #include <asm/mach-ath79/ar71xx_regs.h> -+#include <asm/mach-ath79/ar933x_uart.h> - --static inline void prom_wait_thre(void __iomem *base) -+static void (*_prom_putchar) (unsigned char); -+ -+static inline void prom_putchar_wait(void __iomem *reg, u32 mask, u32 val) - { -- u32 lsr; -+ u32 t; - - do { -- lsr = __raw_readl(base + UART_LSR * 4); -- if (lsr & UART_LSR_THRE) -+ t = __raw_readl(reg); -+ if ((t & mask) == val) - break; - } while (1); - } - --void prom_putchar(unsigned char ch) -+static void prom_putchar_ar71xx(unsigned char ch) - { - void __iomem *base = (void __iomem *)(KSEG1ADDR(AR71XX_UART_BASE)); - -- prom_wait_thre(base); -+ prom_putchar_wait(base + UART_LSR * 4, UART_LSR_THRE, UART_LSR_THRE); - __raw_writel(ch, base + UART_TX * 4); -- prom_wait_thre(base); -+ prom_putchar_wait(base + UART_LSR * 4, UART_LSR_THRE, UART_LSR_THRE); -+} -+ -+static void prom_putchar_ar933x(unsigned char ch) -+{ -+ void __iomem *base = (void __iomem *)(KSEG1ADDR(AR933X_UART_BASE)); -+ -+ prom_putchar_wait(base + AR933X_UART_DATA_REG, AR933X_UART_DATA_TX_CSR, -+ AR933X_UART_DATA_TX_CSR); -+ __raw_writel(AR933X_UART_DATA_TX_CSR | ch, base + AR933X_UART_DATA_REG); -+ prom_putchar_wait(base + AR933X_UART_DATA_REG, AR933X_UART_DATA_TX_CSR, -+ AR933X_UART_DATA_TX_CSR); -+} -+ -+static void prom_putchar_dummy(unsigned char ch) -+{ -+ /* nothing to do */ -+} -+ -+static void prom_putchar_init(void) -+{ -+ void __iomem *base; -+ u32 id; -+ -+ base = (void __iomem *)(KSEG1ADDR(AR71XX_RESET_BASE)); -+ id = __raw_readl(base + AR71XX_RESET_REG_REV_ID); -+ id &= REV_ID_MAJOR_MASK; -+ -+ switch (id) { -+ case REV_ID_MAJOR_AR71XX: -+ case REV_ID_MAJOR_AR7240: -+ case REV_ID_MAJOR_AR7241: -+ case REV_ID_MAJOR_AR7242: -+ case REV_ID_MAJOR_AR913X: -+ _prom_putchar = prom_putchar_ar71xx; -+ break; -+ -+ case REV_ID_MAJOR_AR9330: -+ case REV_ID_MAJOR_AR9331: -+ _prom_putchar = prom_putchar_ar933x; -+ break; -+ -+ default: -+ _prom_putchar = prom_putchar_dummy; -+ break; -+ } -+} -+ -+void prom_putchar(unsigned char ch) -+{ -+ if (!_prom_putchar) -+ prom_putchar_init(); -+ -+ _prom_putchar(ch); - } ---- a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h -+++ b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h -@@ -53,6 +53,9 @@ - #define AR913X_WMAC_BASE (AR71XX_APB_BASE + 0x000C0000) - #define AR913X_WMAC_SIZE 0x30000 - -+#define AR933X_UART_BASE (AR71XX_APB_BASE + 0x00020000) -+#define AR933X_UART_SIZE 0x14 -+ - /* - * DDR_CTRL block - */ ---- /dev/null -+++ b/arch/mips/include/asm/mach-ath79/ar933x_uart.h -@@ -0,0 +1,67 @@ -+/* -+ * Atheros AR933X UART defines -+ * -+ * Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org> -+ * -+ * This program is free software; you can redistribute it and/or modify it -+ * under the terms of the GNU General Public License version 2 as published -+ * by the Free Software Foundation. -+ */ -+ -+#ifndef __AR933X_UART_H -+#define __AR933X_UART_H -+ -+#define AR933X_UART_REGS_SIZE 20 -+#define AR933X_UART_FIFO_SIZE 16 -+ -+#define AR933X_UART_DATA_REG 0x00 -+#define AR933X_UART_CS_REG 0x04 -+#define AR933X_UART_CLOCK_REG 0x08 -+#define AR933X_UART_INT_REG 0x0c -+#define AR933X_UART_INT_EN_REG 0x10 -+ -+#define AR933X_UART_DATA_TX_RX_MASK 0xff -+#define AR933X_UART_DATA_RX_CSR BIT(8) -+#define AR933X_UART_DATA_TX_CSR BIT(9) -+ -+#define AR933X_UART_CS_PARITY_S 0 -+#define AR933X_UART_CS_PARITY_M 0x3 -+#define AR933X_UART_CS_PARITY_NONE 0 -+#define AR933X_UART_CS_PARITY_ODD 1 -+#define AR933X_UART_CS_PARITY_EVEN 2 -+#define AR933X_UART_CS_IF_MODE_S 2 -+#define AR933X_UART_CS_IF_MODE_M 0x3 -+#define AR933X_UART_CS_IF_MODE_NONE 0 -+#define AR933X_UART_CS_IF_MODE_DTE 1 -+#define AR933X_UART_CS_IF_MODE_DCE 2 -+#define AR933X_UART_CS_FLOW_CTRL_S 4 -+#define AR933X_UART_CS_FLOW_CTRL_M 0x3 -+#define AR933X_UART_CS_DMA_EN BIT(6) -+#define AR933X_UART_CS_TX_READY_ORIDE BIT(7) -+#define AR933X_UART_CS_RX_READY_ORIDE BIT(8) -+#define AR933X_UART_CS_TX_READY BIT(9) -+#define AR933X_UART_CS_RX_BREAK BIT(10) -+#define AR933X_UART_CS_TX_BREAK BIT(11) -+#define AR933X_UART_CS_HOST_INT BIT(12) -+#define AR933X_UART_CS_HOST_INT_EN BIT(13) -+#define AR933X_UART_CS_TX_BUSY BIT(14) -+#define AR933X_UART_CS_RX_BUSY BIT(15) -+ -+#define AR933X_UART_CLOCK_STEP_M 0xffff -+#define AR933X_UART_CLOCK_SCALE_M 0xfff -+#define AR933X_UART_CLOCK_SCALE_S 16 -+#define AR933X_UART_CLOCK_STEP_M 0xffff -+ -+#define AR933X_UART_INT_RX_VALID BIT(0) -+#define AR933X_UART_INT_TX_READY BIT(1) -+#define AR933X_UART_INT_RX_FRAMING_ERR BIT(2) -+#define AR933X_UART_INT_RX_OFLOW_ERR BIT(3) -+#define AR933X_UART_INT_TX_OFLOW_ERR BIT(4) -+#define AR933X_UART_INT_RX_PARITY_ERR BIT(5) -+#define AR933X_UART_INT_RX_BREAK_ON BIT(6) -+#define AR933X_UART_INT_RX_BREAK_OFF BIT(7) -+#define AR933X_UART_INT_RX_FULL BIT(8) -+#define AR933X_UART_INT_TX_EMPTY BIT(9) -+#define AR933X_UART_INT_ALLINTS 0x3ff -+ -+#endif /* __AR933X_UART_H */ |