improve BCM6345 support

- runtime detect the amount of memory available
- define EBI_BASE as MPI_BASE to get rid of chip-select specific hacks
- fix GPIO control

SVN-Revision: 27880

1 files changed, 122 insertions, 0 deletions

diff --git a/target/linux/brcm63xx/patches-3.0/001-6345_cpu.patch b/target/linux/brcm63xx/patches-3.0/001-6345_cpu.patch
new file mode 100644
index 0000000000..4c5f14c614
--- /dev/null
+++ b/target/linux/brcm63xx/patches-3.0/001-6345_cpu.patch
@@ -0,0 +1,122 @@
+--- a/arch/mips/bcm63xx/cpu.c
++++ b/arch/mips/bcm63xx/cpu.c
+@@ -260,8 +260,10 @@ static unsigned int detect_memory_size(v
+ 	unsigned int cols = 0, rows = 0, is_32bits = 0, banks = 0;
+ 	u32 val;
+ 
+-	if (BCMCPU_IS_6345())
+-		return (8 * 1024 * 1024);
++	if (BCMCPU_IS_6345()) {
++		val = bcm_sdram_readl(SDRAM_MBASE_REG);
++		return (val * 8 * 1024 * 1024);
++	}
+ 
+ 	if (BCMCPU_IS_6338() || BCMCPU_IS_6348()) {
+ 		val = bcm_sdram_readl(SDRAM_CFG_REG);
+--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
++++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
+@@ -735,6 +735,8 @@
+ #define SDRAM_CFG_BANK_SHIFT		13
+ #define SDRAM_CFG_BANK_MASK		(1 << SDRAM_CFG_BANK_SHIFT)
+ 
++#define SDRAM_MBASE_REG			0xc
++
+ #define SDRAM_PRIO_REG			0x2C
+ #define SDRAM_PRIO_MIPS_SHIFT		29
+ #define SDRAM_PRIO_MIPS_MASK		(1 << SDRAM_PRIO_MIPS_SHIFT)
+--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
++++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
+@@ -709,15 +709,9 @@ void __init board_prom_init(void)
+ 	char cfe_version[32];
+ 	u32 val;
+ 
+-	/* read base address of boot chip select (0)
+-	 * 6345 does not have MPI but boots from standard
+-	 * MIPS Flash address */
+-	if (BCMCPU_IS_6345())
+-		val = 0x1fc00000;
+-	else {
+-		val = bcm_mpi_readl(MPI_CSBASE_REG(0));
+-		val &= MPI_CSBASE_BASE_MASK;
+-	}
++	/* read base address of boot chip select (0) */
++	val = bcm_mpi_readl(MPI_CSBASE_REG(0));
++	val &= MPI_CSBASE_BASE_MASK;
+ 	boot_addr = (u8 *)KSEG1ADDR(val);
+ 
+ 	/* dump cfe version */
+@@ -893,12 +887,9 @@ int __init board_register_devices(void)
+ 		bcm63xx_dsp_register(&board.dsp);
+ 
+ 	/* read base address of boot chip select (0) */
+-	if (BCMCPU_IS_6345())
+-		val = 0x1fc00000;
+-	else {
+-		val = bcm_mpi_readl(MPI_CSBASE_REG(0));
+-		val &= MPI_CSBASE_BASE_MASK;
+-	}
++	val = bcm_mpi_readl(MPI_CSBASE_REG(0));
++	val &= MPI_CSBASE_BASE_MASK;
++
+ 	mtd_resources[0].start = val;
+ 	mtd_resources[0].end = 0x1FFFFFFF;
+ 
+--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
++++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
+@@ -163,7 +163,7 @@ enum bcm63xx_regs_set {
+ #define BCM_6345_ENET0_BASE		(0xfffe1800)
+ #define BCM_6345_ENETDMA_BASE		(0xfffe2800)
+ #define BCM_6345_PCMCIA_BASE		(0xfffe2028)
+-#define BCM_6345_MPI_BASE		(0xdeadbeef)
++#define BCM_6345_MPI_BASE		(0xfffe2000)
+ #define BCM_6345_OHCI0_BASE		(0xfffe2100)
+ #define BCM_6345_OHCI_PRIV_BASE		(0xfffe2200)
+ #define BCM_6345_USBH_PRIV_BASE		(0xdeadbeef)
+--- a/arch/mips/bcm63xx/gpio.c
++++ b/arch/mips/bcm63xx/gpio.c
+@@ -4,7 +4,7 @@
+  * for more details.
+  *
+  * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
+- * Copyright (C) 2008 Florian Fainelli <florian@openwrt.org>
++ * Copyright (C) 2008-2011 Florian Fainelli <florian@openwrt.org>
+  */
+ 
+ #include <linux/kernel.h>
+@@ -33,7 +33,10 @@ static void bcm63xx_gpio_set(struct gpio
+ 		BUG();
+ 
+ 	if (gpio < 32) {
+-		reg = GPIO_DATA_LO_REG;
++		if (!BCMCPU_IS_6345())
++			reg = GPIO_DATA_LO_REG;
++		else
++			reg = GPIO_DATA_HI_REG;
+ 		mask = 1 << gpio;
+ 		v = &gpio_out_low;
+ 	} else {
+@@ -60,7 +63,10 @@ static int bcm63xx_gpio_get(struct gpio_
+ 		BUG();
+ 
+ 	if (gpio < 32) {
+-		reg = GPIO_DATA_LO_REG;
++		if (!BCMCPU_IS_6345())
++			reg = GPIO_DATA_LO_REG;
++		else
++			reg = GPIO_DATA_HI_REG;
+ 		mask = 1 << gpio;
+ 	} else {
+ 		reg = GPIO_DATA_HI_REG;
+@@ -125,7 +131,11 @@ static struct gpio_chip bcm63xx_gpio_chi
+ 
+ int __init bcm63xx_gpio_init(void)
+ {
+-	gpio_out_low = bcm_gpio_readl(GPIO_DATA_LO_REG);
++	if (!BCMCPU_IS_6345())
++		gpio_out_low = bcm_gpio_readl(GPIO_DATA_LO_REG);
++	else
++		gpio_out_low = bcm_gpio_readl(GPIO_DATA_HI_REG);
++
+ 	gpio_out_high = bcm_gpio_readl(GPIO_DATA_HI_REG);
+ 	bcm63xx_gpio_chip.ngpio = bcm63xx_gpio_count();
+ 	pr_info("registering %d GPIOs\n", bcm63xx_gpio_chip.ngpio);