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authorEric Miao <eric.miao@marvell.com>2009-03-20 12:50:22 +0800
committerEric Miao <eric.miao@marvell.com>2009-03-23 10:11:35 +0800
commit14c6b5e7add9ec393ad61bceb6106b47c7f14bd3 (patch)
tree525cf72ac77f27201902b85e904b45df529cca68 /arch/arm/mach-mmp/pxa910.c
parenta6b993c6b5183fe2af98569cbb7dd8add01b8deb (diff)
downloadlinux-2.6.34-ux500-14c6b5e7add9ec393ad61bceb6106b47c7f14bd3.tar.gz
[ARM] pxa: add base support for Marvell PXA910
Signed-off-by: Bin Yang <bin.yang@marvell.com> Signed-off-by: Eric Miao <eric.miao@marvell.com>
Diffstat (limited to 'arch/arm/mach-mmp/pxa910.c')
-rw-r--r--arch/arm/mach-mmp/pxa910.c158
1 files changed, 158 insertions, 0 deletions
diff --git a/arch/arm/mach-mmp/pxa910.c b/arch/arm/mach-mmp/pxa910.c
new file mode 100644
index 00000000000..453f8f7758b
--- /dev/null
+++ b/arch/arm/mach-mmp/pxa910.c
@@ -0,0 +1,158 @@
+/*
+ * linux/arch/arm/mach-mmp/pxa910.c
+ *
+ * Code specific to PXA910
+ *
+ * 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.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/io.h>
+
+#include <asm/mach/time.h>
+#include <mach/addr-map.h>
+#include <mach/regs-apbc.h>
+#include <mach/regs-apmu.h>
+#include <mach/cputype.h>
+#include <mach/irqs.h>
+#include <mach/gpio.h>
+#include <mach/dma.h>
+#include <mach/mfp.h>
+#include <mach/devices.h>
+
+#include "common.h"
+#include "clock.h"
+
+#define MFPR_VIRT_BASE (APB_VIRT_BASE + 0x1e000)
+
+static struct mfp_addr_map pxa910_mfp_addr_map[] __initdata =
+{
+ MFP_ADDR_X(GPIO0, GPIO54, 0xdc),
+ MFP_ADDR_X(GPIO67, GPIO98, 0x1b8),
+ MFP_ADDR_X(GPIO100, GPIO109, 0x238),
+
+ MFP_ADDR(GPIO123, 0xcc),
+ MFP_ADDR(GPIO124, 0xd0),
+
+ MFP_ADDR(DF_IO0, 0x40),
+ MFP_ADDR(DF_IO1, 0x3c),
+ MFP_ADDR(DF_IO2, 0x38),
+ MFP_ADDR(DF_IO3, 0x34),
+ MFP_ADDR(DF_IO4, 0x30),
+ MFP_ADDR(DF_IO5, 0x2c),
+ MFP_ADDR(DF_IO6, 0x28),
+ MFP_ADDR(DF_IO7, 0x24),
+ MFP_ADDR(DF_IO8, 0x20),
+ MFP_ADDR(DF_IO9, 0x1c),
+ MFP_ADDR(DF_IO10, 0x18),
+ MFP_ADDR(DF_IO11, 0x14),
+ MFP_ADDR(DF_IO12, 0x10),
+ MFP_ADDR(DF_IO13, 0xc),
+ MFP_ADDR(DF_IO14, 0x8),
+ MFP_ADDR(DF_IO15, 0x4),
+
+ MFP_ADDR(DF_nCS0_SM_nCS2, 0x44),
+ MFP_ADDR(DF_nCS1_SM_nCS3, 0x48),
+ MFP_ADDR(SM_nCS0, 0x4c),
+ MFP_ADDR(SM_nCS1, 0x50),
+ MFP_ADDR(DF_WEn, 0x54),
+ MFP_ADDR(DF_REn, 0x58),
+ MFP_ADDR(DF_CLE_SM_OEn, 0x5c),
+ MFP_ADDR(DF_ALE_SM_WEn, 0x60),
+ MFP_ADDR(SM_SCLK, 0x64),
+ MFP_ADDR(DF_RDY0, 0x68),
+ MFP_ADDR(SM_BE0, 0x6c),
+ MFP_ADDR(SM_BE1, 0x70),
+ MFP_ADDR(SM_ADV, 0x74),
+ MFP_ADDR(DF_RDY1, 0x78),
+ MFP_ADDR(SM_ADVMUX, 0x7c),
+ MFP_ADDR(SM_RDY, 0x80),
+
+ MFP_ADDR_X(MMC1_DAT7, MMC1_WP, 0x84),
+
+ MFP_ADDR_END,
+};
+
+#define APMASK(i) (GPIO_REGS_VIRT + BANK_OFF(i) + 0x09c)
+
+static void __init pxa910_init_gpio(void)
+{
+ int i;
+
+ /* enable GPIO clock */
+ __raw_writel(APBC_APBCLK | APBC_FNCLK, APBC_PXA910_GPIO);
+
+ /* unmask GPIO edge detection for all 4 banks - APMASKx */
+ for (i = 0; i < 4; i++)
+ __raw_writel(0xffffffff, APMASK(i));
+
+ pxa_init_gpio(IRQ_PXA910_AP_GPIO, 0, 127, NULL);
+}
+
+void __init pxa910_init_irq(void)
+{
+ icu_init_irq();
+ pxa910_init_gpio();
+}
+
+/* APB peripheral clocks */
+static APBC_CLK(uart1, PXA910_UART0, 1, 14745600);
+static APBC_CLK(uart2, PXA910_UART1, 1, 14745600);
+
+/* device and clock bindings */
+static struct clk_lookup pxa910_clkregs[] = {
+ INIT_CLKREG(&clk_uart1, "pxa2xx-uart.0", NULL),
+ INIT_CLKREG(&clk_uart2, "pxa2xx-uart.1", NULL),
+};
+
+static int __init pxa910_init(void)
+{
+ if (cpu_is_pxa910()) {
+ mfp_init_base(MFPR_VIRT_BASE);
+ mfp_init_addr(pxa910_mfp_addr_map);
+ pxa_init_dma(IRQ_PXA910_DMA_INT0, 32);
+ clks_register(ARRAY_AND_SIZE(pxa910_clkregs));
+ }
+
+ return 0;
+}
+postcore_initcall(pxa910_init);
+
+/* system timer - clock enabled, 3.25MHz */
+#define TIMER_CLK_RST (APBC_APBCLK | APBC_FNCLK | APBC_FNCLKSEL(3))
+
+static void __init pxa910_timer_init(void)
+{
+ /* reset and configure */
+ __raw_writel(APBC_APBCLK | APBC_RST, APBC_PXA910_TIMERS);
+ __raw_writel(TIMER_CLK_RST, APBC_PXA910_TIMERS);
+
+ timer_init(IRQ_PXA910_AP1_TIMER1);
+}
+
+struct sys_timer pxa910_timer = {
+ .init = pxa910_timer_init,
+};
+
+/* on-chip devices */
+
+/* NOTE: there are totally 3 UARTs on PXA910:
+ *
+ * UART1 - Slow UART (can be used both by AP and CP)
+ * UART2/3 - Fast UART
+ *
+ * To be backward compatible with the legacy FFUART/BTUART/STUART sequence,
+ * they are re-ordered as:
+ *
+ * pxa910_device_uart1 - UART2 as FFUART
+ * pxa910_device_uart2 - UART3 as BTUART
+ *
+ * UART1 is not used by AP for the moment.
+ */
+PXA910_DEVICE(uart1, "pxa2xx-uart", 0, UART2, 0xd4017000, 0x30, 21, 22);
+PXA910_DEVICE(uart2, "pxa2xx-uart", 1, UART3, 0xd4018000, 0x30, 23, 24);