From 144f814a439ff0b8ad62c51d74e56b490e651ded Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Tue, 26 Aug 2008 16:04:05 +0200 Subject: [ARM] Kirkwood: wire up ethernet error interrupt Wire up the ethernet port's error interrupt so that the mv643xx_eth driver can sleep for SMI event completion instead of having to busy-wait for it. Signed-off-by: Lennert Buytenhek --- arch/arm/mach-kirkwood/common.c | 7 ++++++- arch/arm/mach-kirkwood/include/mach/irqs.h | 1 + 2 files changed, 7 insertions(+), 1 deletion(-) (limited to 'arch/arm/mach-kirkwood') diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c index 189f16f3619..435fb35a484 100644 --- a/arch/arm/mach-kirkwood/common.c +++ b/arch/arm/mach-kirkwood/common.c @@ -108,6 +108,11 @@ static struct resource kirkwood_ge00_shared_resources[] = { .start = GE00_PHYS_BASE + 0x2000, .end = GE00_PHYS_BASE + 0x3fff, .flags = IORESOURCE_MEM, + }, { + .name = "ge00 err irq", + .start = IRQ_KIRKWOOD_GE00_ERR, + .end = IRQ_KIRKWOOD_GE00_ERR, + .flags = IORESOURCE_IRQ, }, }; @@ -117,7 +122,7 @@ static struct platform_device kirkwood_ge00_shared = { .dev = { .platform_data = &kirkwood_ge00_shared_data, }, - .num_resources = 1, + .num_resources = ARRAY_SIZE(kirkwood_ge00_shared_resources), .resource = kirkwood_ge00_shared_resources, }; diff --git a/arch/arm/mach-kirkwood/include/mach/irqs.h b/arch/arm/mach-kirkwood/include/mach/irqs.h index 6fd05838c72..ffab89f21c1 100644 --- a/arch/arm/mach-kirkwood/include/mach/irqs.h +++ b/arch/arm/mach-kirkwood/include/mach/irqs.h @@ -50,6 +50,7 @@ #define IRQ_KIRKWOOD_GPIO_HIGH_0_7 39 #define IRQ_KIRKWOOD_GPIO_HIGH_8_15 40 #define IRQ_KIRKWOOD_GPIO_HIGH_16_23 41 +#define IRQ_KIRKWOOD_GE00_ERR 46 /* * KIRKWOOD General Purpose Pins -- cgit v1.2.3 From 79d4dd77f0d86e4315887edaa5dfabb0c2081ba7 Mon Sep 17 00:00:00 2001 From: Ronen Shitrit Date: Mon, 15 Sep 2008 00:56:38 +0200 Subject: [ARM] Kirkwood: prepare for runtime-determined timer tick rate Currently, kirkwood uses a hardcoded timer tick rate of 166 MHz, but the actual timer tick rate varies between different members of the SoC family. This patch prepares for runtime determination of the timer tick rate. Signed-off-by: Ronen Shitrit --- arch/arm/mach-kirkwood/common.c | 22 ++++++++++++++++------ arch/arm/mach-kirkwood/include/mach/timex.h | 1 - 2 files changed, 16 insertions(+), 7 deletions(-) (limited to 'arch/arm/mach-kirkwood') diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c index 435fb35a484..2e79dabac53 100644 --- a/arch/arm/mach-kirkwood/common.c +++ b/arch/arm/mach-kirkwood/common.c @@ -98,7 +98,6 @@ void __init kirkwood_ehci_init(void) * GE00 ****************************************************************************/ struct mv643xx_eth_shared_platform_data kirkwood_ge00_shared_data = { - .t_clk = KIRKWOOD_TCLK, .dram = &kirkwood_mbus_dram_info, }; @@ -206,7 +205,6 @@ void __init kirkwood_sata_init(struct mv_sata_platform_data *sata_data) * SPI ****************************************************************************/ static struct orion_spi_info kirkwood_spi_plat_data = { - .tclk = KIRKWOOD_TCLK, }; static struct resource kirkwood_spi_resources[] = { @@ -244,7 +242,7 @@ static struct plat_serial8250_port kirkwood_uart0_data[] = { .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF, .iotype = UPIO_MEM, .regshift = 2, - .uartclk = KIRKWOOD_TCLK, + .uartclk = 0, }, { }, }; @@ -288,7 +286,7 @@ static struct plat_serial8250_port kirkwood_uart1_data[] = { .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF, .iotype = UPIO_MEM, .regshift = 2, - .uartclk = KIRKWOOD_TCLK, + .uartclk = 0, }, { }, }; @@ -530,9 +528,17 @@ void __init kirkwood_xor1_init(void) /***************************************************************************** * Time handling ****************************************************************************/ +int kirkwood_tclk; + +int __init kirkwood_find_tclk(void) +{ + return 166666667; +} + static void kirkwood_timer_init(void) { - orion_time_init(IRQ_KIRKWOOD_BRIDGE, KIRKWOOD_TCLK); + kirkwood_tclk = kirkwood_find_tclk(); + orion_time_init(IRQ_KIRKWOOD_BRIDGE, kirkwood_tclk); } struct sys_timer kirkwood_timer = { @@ -565,7 +571,11 @@ static int __init is_l2_writethrough(void) void __init kirkwood_init(void) { printk(KERN_INFO "Kirkwood: %s, TCLK=%d.\n", - kirkwood_id(), KIRKWOOD_TCLK); + kirkwood_id(), kirkwood_tclk); + kirkwood_ge00_shared_data.t_clk = kirkwood_tclk; + kirkwood_spi_plat_data.tclk = kirkwood_tclk; + kirkwood_uart0_data[0].uartclk = kirkwood_tclk; + kirkwood_uart1_data[0].uartclk = kirkwood_tclk; kirkwood_setup_cpu_mbus(); diff --git a/arch/arm/mach-kirkwood/include/mach/timex.h b/arch/arm/mach-kirkwood/include/mach/timex.h index f77ef4a32c5..c923cd169b9 100644 --- a/arch/arm/mach-kirkwood/include/mach/timex.h +++ b/arch/arm/mach-kirkwood/include/mach/timex.h @@ -8,4 +8,3 @@ #define CLOCK_TICK_RATE (100 * HZ) -#define KIRKWOOD_TCLK 166666667 -- cgit v1.2.3 From b2b3dc2fc41ef441610d0140f0f5ccacbd43f40c Mon Sep 17 00:00:00 2001 From: Ronen Shitrit Date: Mon, 15 Sep 2008 10:40:35 +0300 Subject: [ARM] Kirkwood: add support for newer SoC models Add support to the Kirkwood port for newer device models and silicon revisions. Instead of looking at the DEVICE_ID register, the device version is now determined by looking at the PCI-Express device ID and revision registers, as it is done for orion5x, and this information is used to determine the TCLK frequency, again, as it is done for orion5x. Signed-off-by: Ronen Shitrit Signed-off-by: Lennert Buytenhek --- arch/arm/mach-kirkwood/common.c | 43 ++++++++++++++++++++------ arch/arm/mach-kirkwood/common.h | 2 ++ arch/arm/mach-kirkwood/include/mach/kirkwood.h | 14 +++++++++ arch/arm/mach-kirkwood/pcie.c | 6 ++++ 4 files changed, 56 insertions(+), 9 deletions(-) (limited to 'arch/arm/mach-kirkwood') diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c index 2e79dabac53..c8516e352d1 100644 --- a/arch/arm/mach-kirkwood/common.c +++ b/arch/arm/mach-kirkwood/common.c @@ -532,6 +532,12 @@ int kirkwood_tclk; int __init kirkwood_find_tclk(void) { + u32 dev, rev; + + kirkwood_pcie_id(&dev, &rev); + if (dev == MV88F6281_DEV_ID && rev == MV88F6281_REV_A0) + return 200000000; + return 166666667; } @@ -549,18 +555,37 @@ struct sys_timer kirkwood_timer = { /***************************************************************************** * General ****************************************************************************/ +/* + * Identify device ID and revision. + */ static char * __init kirkwood_id(void) { - switch (readl(DEVICE_ID) & 0x3) { - case 0: - return "88F6180"; - case 1: - return "88F6192"; - case 2: - return "88F6281"; + u32 dev, rev; + + kirkwood_pcie_id(&dev, &rev); + + if (dev == MV88F6281_DEV_ID) { + if (rev == MV88F6281_REV_Z0) + return "MV88F6281-Z0"; + else if (rev == MV88F6281_REV_A0) + return "MV88F6281-A0"; + else + return "MV88F6281-Rev-Unsupported"; + } else if (dev == MV88F6192_DEV_ID) { + if (rev == MV88F6192_REV_Z0) + return "MV88F6192-Z0"; + else if (rev == MV88F6192_REV_A0) + return "MV88F6192-A0"; + else + return "MV88F6192-Rev-Unsupported"; + } else if (dev == MV88F6180_DEV_ID) { + if (rev == MV88F6180_REV_A0) + return "MV88F6180-Rev-A0"; + else + return "MV88F6180-Rev-Unsupported"; + } else { + return "Device-Unknown"; } - - return "unknown 88F6000 variant"; } static int __init is_l2_writethrough(void) diff --git a/arch/arm/mach-kirkwood/common.h b/arch/arm/mach-kirkwood/common.h index 69cd113af03..02abef1b321 100644 --- a/arch/arm/mach-kirkwood/common.h +++ b/arch/arm/mach-kirkwood/common.h @@ -28,6 +28,8 @@ void kirkwood_setup_pcie_io_win(int window, u32 base, u32 size, void kirkwood_setup_pcie_mem_win(int window, u32 base, u32 size, int maj, int min); +void kirkwood_pcie_id(u32 *dev, u32 *rev); + void kirkwood_ehci_init(void); void kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data); void kirkwood_pcie_init(void); diff --git a/arch/arm/mach-kirkwood/include/mach/kirkwood.h b/arch/arm/mach-kirkwood/include/mach/kirkwood.h index 5c69992295e..eae42406fd8 100644 --- a/arch/arm/mach-kirkwood/include/mach/kirkwood.h +++ b/arch/arm/mach-kirkwood/include/mach/kirkwood.h @@ -67,6 +67,20 @@ #define L2_CONFIG_REG (BRIDGE_VIRT_BASE | 0x0128) #define L2_WRITETHROUGH 0x00000010 +/* + * Supported devices and revisions. + */ +#define MV88F6281_DEV_ID 0x6281 +#define MV88F6281_REV_Z0 0 +#define MV88F6281_REV_A0 2 + +#define MV88F6192_DEV_ID 0x6192 +#define MV88F6192_REV_Z0 0 +#define MV88F6192_REV_A0 2 + +#define MV88F6180_DEV_ID 0x6180 +#define MV88F6180_REV_A0 2 + /* * Register Map */ diff --git a/arch/arm/mach-kirkwood/pcie.c b/arch/arm/mach-kirkwood/pcie.c index 2195fa31f6b..f6b08f207c8 100644 --- a/arch/arm/mach-kirkwood/pcie.c +++ b/arch/arm/mach-kirkwood/pcie.c @@ -18,6 +18,12 @@ #define PCIE_BASE ((void __iomem *)PCIE_VIRT_BASE) +void __init kirkwood_pcie_id(u32 *dev, u32 *rev) +{ + *dev = orion_pcie_dev_id(PCIE_BASE); + *rev = orion_pcie_rev(PCIE_BASE); +} + static int pcie_valid_config(int bus, int dev) { /* -- cgit v1.2.3 From 3a64ebc9ce3d5a364b50fe78ca9c2c507b765784 Mon Sep 17 00:00:00 2001 From: Ronen Shitrit Date: Sun, 14 Sep 2008 20:30:27 +0300 Subject: [ARM] Kirkwood: remove uart1 init calls for boards that don't expose uart1 Remove uart1 init calls for boards that use the physical pins onto which the UART1 signals are multiplexed for different purposes. Signed-off-by: Ronen Shitrit Signed-off-by: Lennert Buytenhek --- arch/arm/mach-kirkwood/db88f6281-bp-setup.c | 1 - arch/arm/mach-kirkwood/rd88f6281-setup.c | 1 - 2 files changed, 2 deletions(-) (limited to 'arch/arm/mach-kirkwood') diff --git a/arch/arm/mach-kirkwood/db88f6281-bp-setup.c b/arch/arm/mach-kirkwood/db88f6281-bp-setup.c index 610fb24d8ae..89d746d13fd 100644 --- a/arch/arm/mach-kirkwood/db88f6281-bp-setup.c +++ b/arch/arm/mach-kirkwood/db88f6281-bp-setup.c @@ -44,7 +44,6 @@ static void __init db88f6281_init(void) kirkwood_rtc_init(); kirkwood_sata_init(&db88f6281_sata_data); kirkwood_uart0_init(); - kirkwood_uart1_init(); } static int __init db88f6281_pci_init(void) diff --git a/arch/arm/mach-kirkwood/rd88f6281-setup.c b/arch/arm/mach-kirkwood/rd88f6281-setup.c index d96487a0f18..fb8990f9770 100644 --- a/arch/arm/mach-kirkwood/rd88f6281-setup.c +++ b/arch/arm/mach-kirkwood/rd88f6281-setup.c @@ -90,7 +90,6 @@ static void __init rd88f6281_init(void) kirkwood_rtc_init(); kirkwood_sata_init(&rd88f6281_sata_data); kirkwood_uart0_init(); - kirkwood_uart1_init(); platform_device_register(&rd88f6281_nand_flash); } -- cgit v1.2.3 From 2d0c9e735ab8413d3cf29576ab14e07f7aa8eab9 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Sun, 31 Aug 2008 07:39:19 +0200 Subject: [ARM] Kirkwood: allow configuring mbus window for on-chip sram Signed-off-by: Lennert Buytenhek --- arch/arm/mach-kirkwood/addr-map.c | 8 ++++++++ arch/arm/mach-kirkwood/common.h | 5 +---- 2 files changed, 9 insertions(+), 4 deletions(-) (limited to 'arch/arm/mach-kirkwood') diff --git a/arch/arm/mach-kirkwood/addr-map.c b/arch/arm/mach-kirkwood/addr-map.c index c79f492072f..5db4f0bbe5e 100644 --- a/arch/arm/mach-kirkwood/addr-map.c +++ b/arch/arm/mach-kirkwood/addr-map.c @@ -48,6 +48,7 @@ struct mbus_dram_target_info kirkwood_mbus_dram_info; +static int __initdata win_alloc_count; static int __init cpu_win_can_remap(int win) { @@ -111,6 +112,8 @@ void __init kirkwood_setup_cpu_mbus(void) setup_cpu_win(2, KIRKWOOD_NAND_MEM_PHYS_BASE, KIRKWOOD_NAND_MEM_SIZE, TARGET_DEV_BUS, ATTR_DEV_NAND, -1); + win_alloc_count = 3; + /* * Setup MBUS dram target info. */ @@ -137,3 +140,8 @@ void __init kirkwood_setup_cpu_mbus(void) } kirkwood_mbus_dram_info.num_cs = cs; } + +void __init kirkwood_setup_sram_win(u32 base, u32 size) +{ + setup_cpu_win(win_alloc_count++, base, size, 0x03, 0x00, -1); +} diff --git a/arch/arm/mach-kirkwood/common.h b/arch/arm/mach-kirkwood/common.h index 02abef1b321..8fa0f6a2763 100644 --- a/arch/arm/mach-kirkwood/common.h +++ b/arch/arm/mach-kirkwood/common.h @@ -23,10 +23,7 @@ void kirkwood_init_irq(void); extern struct mbus_dram_target_info kirkwood_mbus_dram_info; void kirkwood_setup_cpu_mbus(void); -void kirkwood_setup_pcie_io_win(int window, u32 base, u32 size, - int maj, int min); -void kirkwood_setup_pcie_mem_win(int window, u32 base, u32 size, - int maj, int min); +void kirkwood_setup_sram_win(u32 base, u32 size); void kirkwood_pcie_id(u32 *dev, u32 *rev); -- cgit v1.2.3 From 4360bb41920ffacd4a935fa692768129ee5bef4e Mon Sep 17 00:00:00 2001 From: Ronen Shitrit Date: Tue, 23 Sep 2008 15:28:10 +0300 Subject: [ARM] Kirkwood: add support for L2 cache WB/WT selection Feroceon L2 cache can work in eighther write through or write back mode on Kirkwood. Add the option to configure this mode according to Kconfig. Signed-off-by: Ronen Shitrit Signed-off-by: Nicolas Pitre --- arch/arm/mach-kirkwood/common.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) (limited to 'arch/arm/mach-kirkwood') diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c index c8516e352d1..85cad05d8c5 100644 --- a/arch/arm/mach-kirkwood/common.c +++ b/arch/arm/mach-kirkwood/common.c @@ -588,9 +588,15 @@ static char * __init kirkwood_id(void) } } -static int __init is_l2_writethrough(void) +static void __init kirkwood_l2_init(void) { - return !!(readl(L2_CONFIG_REG) & L2_WRITETHROUGH); +#ifdef CONFIG_CACHE_FEROCEON_L2_WRITETHROUGH + writel(readl(L2_CONFIG_REG) | L2_WRITETHROUGH, L2_CONFIG_REG); + feroceon_l2_init(1); +#else + writel(readl(L2_CONFIG_REG) & ~L2_WRITETHROUGH, L2_CONFIG_REG); + feroceon_l2_init(0); +#endif } void __init kirkwood_init(void) @@ -605,6 +611,6 @@ void __init kirkwood_init(void) kirkwood_setup_cpu_mbus(); #ifdef CONFIG_CACHE_FEROCEON_L2 - feroceon_l2_init(is_l2_writethrough()); + kirkwood_l2_init(); #endif } -- cgit v1.2.3