diff options
Diffstat (limited to 'arch/powerpc/sysdev')
| -rw-r--r-- | arch/powerpc/sysdev/Makefile | 4 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/commproc.h | 12 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/cpm1.c (renamed from arch/powerpc/sysdev/commproc.c) | 42 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/cpm2.c (renamed from arch/powerpc/sysdev/cpm2_common.c) | 3 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/fsl_soc.c | 99 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/ipic.c | 6 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/micropatch.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/mpc8xx_pic.c | 1 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/qe_lib/qe.c | 63 |
9 files changed, 128 insertions, 104 deletions
diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile index 702916bf28f..15f3e8527d7 100644 --- a/arch/powerpc/sysdev/Makefile +++ b/arch/powerpc/sysdev/Makefile @@ -37,8 +37,8 @@ endif # Temporary hack until we have migrated to asm-powerpc ifeq ($(ARCH),powerpc) obj-$(CONFIG_CPM) += cpm_common.o -obj-$(CONFIG_CPM2) += cpm2_common.o cpm2_pic.o +obj-$(CONFIG_CPM2) += cpm2.o cpm2_pic.o obj-$(CONFIG_PPC_DCR) += dcr.o -obj-$(CONFIG_8xx) += mpc8xx_pic.o commproc.o +obj-$(CONFIG_8xx) += mpc8xx_pic.o cpm1.o obj-$(CONFIG_UCODE_PATCH) += micropatch.o endif diff --git a/arch/powerpc/sysdev/commproc.h b/arch/powerpc/sysdev/commproc.h deleted file mode 100644 index 9155ba46727..00000000000 --- a/arch/powerpc/sysdev/commproc.h +++ /dev/null @@ -1,12 +0,0 @@ -#ifndef _POWERPC_SYSDEV_COMMPROC_H -#define _POWERPC_SYSDEV_COMMPROC_H - -extern void cpm_reset(void); -extern void mpc8xx_restart(char *cmd); -extern void mpc8xx_calibrate_decr(void); -extern int mpc8xx_set_rtc_time(struct rtc_time *tm); -extern void mpc8xx_get_rtc_time(struct rtc_time *tm); -extern void m8xx_pic_init(void); -extern unsigned int mpc8xx_get_irq(void); - -#endif diff --git a/arch/powerpc/sysdev/commproc.c b/arch/powerpc/sysdev/cpm1.c index 621bc6c1d40..df8bd2b6479 100644 --- a/arch/powerpc/sysdev/commproc.c +++ b/arch/powerpc/sysdev/cpm1.c @@ -30,11 +30,10 @@ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/module.h> -#include <asm/mpc8xx.h> #include <asm/page.h> #include <asm/pgtable.h> #include <asm/8xx_immap.h> -#include <asm/commproc.h> +#include <asm/cpm1.h> #include <asm/io.h> #include <asm/tlbflush.h> #include <asm/rheap.h> @@ -48,8 +47,6 @@ #ifndef CONFIG_PPC_CPM_NEW_BINDING static void m8xx_cpm_dpinit(void); #endif -static uint host_buffer; /* One page of host buffer */ -static uint host_end; /* end + 1 */ cpm8xx_t __iomem *cpmp; /* Pointer to comm processor space */ immap_t __iomem *mpc8xx_immr; static cpic8xx_t __iomem *cpic_reg; @@ -268,41 +265,6 @@ out: } EXPORT_SYMBOL(cpm_command); -/* We used to do this earlier, but have to postpone as long as possible - * to ensure the kernel VM is now running. - */ -static void -alloc_host_memory(void) -{ - dma_addr_t physaddr; - - /* Set the host page for allocation. - */ - host_buffer = (uint)dma_alloc_coherent(NULL, PAGE_SIZE, &physaddr, - GFP_KERNEL); - host_end = host_buffer + PAGE_SIZE; -} - -/* We also own one page of host buffer space for the allocation of - * UART "fifos" and the like. - */ -uint -m8xx_cpm_hostalloc(uint size) -{ - uint retloc; - - if (host_buffer == 0) - alloc_host_memory(); - - if ((host_buffer + size) >= host_end) - return(0); - - retloc = host_buffer; - host_buffer += size; - - return(retloc); -} - /* Set a baud rate generator. This needs lots of work. There are * four BRGs, any of which can be wired to any channel. * The internal baud rate clock is the system clock divided by 16. @@ -328,7 +290,7 @@ cpm_setbrg(uint brg, uint rate) out_be32(bp, (((BRG_UART_CLK / rate) - 1) << 1) | CPM_BRG_EN); else out_be32(bp, (((BRG_UART_CLK_DIV16 / rate) - 1) << 1) | - CPM_BRG_EN | CPM_BRG_DIV16); + CPM_BRG_EN | CPM_BRG_DIV16); } #ifndef CONFIG_PPC_CPM_NEW_BINDING diff --git a/arch/powerpc/sysdev/cpm2_common.c b/arch/powerpc/sysdev/cpm2.c index f7188e2ba66..7be71123212 100644 --- a/arch/powerpc/sysdev/cpm2_common.c +++ b/arch/powerpc/sysdev/cpm2.c @@ -153,8 +153,7 @@ cpm2_fastbrg(uint brg, uint rate, int div16) if (brg < 4) { bp = cpm2_map_size(im_brgc1, 16); - } - else { + } else { bp = cpm2_map_size(im_brgc5, 16); brg -= 4; } diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c index f2c0988a03b..e48b20e934c 100644 --- a/arch/powerpc/sysdev/fsl_soc.c +++ b/arch/powerpc/sysdev/fsl_soc.c @@ -75,7 +75,7 @@ phys_addr_t get_immrbase(void) EXPORT_SYMBOL(get_immrbase); -#if defined(CONFIG_CPM2) || defined(CONFIG_8xx) +#if defined(CONFIG_CPM2) || defined(CONFIG_QUICC_ENGINE) || defined(CONFIG_8xx) static u32 brgfreq = -1; @@ -100,11 +100,21 @@ u32 get_brgfreq(void) /* Legacy device binding -- will go away when no users are left. */ node = of_find_node_by_type(NULL, "cpm"); + if (!node) + node = of_find_compatible_node(NULL, NULL, "fsl,qe"); + if (!node) + node = of_find_node_by_type(NULL, "qe"); + if (node) { prop = of_get_property(node, "brg-frequency", &size); if (prop && size == 4) brgfreq = *prop; + if (brgfreq == -1 || brgfreq == 0) { + prop = of_get_property(node, "bus-frequency", &size); + if (prop && size == 4) + brgfreq = *prop / 2; + } of_node_put(node); } @@ -1266,31 +1276,17 @@ arch_initcall(cpm_smc_uart_of_init); #endif /* CONFIG_8xx */ #endif /* CONFIG_PPC_CPM_NEW_BINDING */ -int __init fsl_spi_init(struct spi_board_info *board_infos, - unsigned int num_board_infos, - void (*activate_cs)(u8 cs, u8 polarity), - void (*deactivate_cs)(u8 cs, u8 polarity)) +static int __init of_fsl_spi_probe(char *type, char *compatible, u32 sysclk, + struct spi_board_info *board_infos, + unsigned int num_board_infos, + void (*activate_cs)(u8 cs, u8 polarity), + void (*deactivate_cs)(u8 cs, u8 polarity)) { struct device_node *np; - unsigned int i; - const u32 *sysclk; - - /* SPI controller is either clocked from QE or SoC clock */ - np = of_find_node_by_type(NULL, "qe"); - if (!np) - np = of_find_node_by_type(NULL, "soc"); - - if (!np) - return -ENODEV; - - sysclk = of_get_property(np, "bus-frequency", NULL); - if (!sysclk) - return -ENODEV; + unsigned int i = 0; - for (np = NULL, i = 1; - (np = of_find_compatible_node(np, "spi", "fsl_spi")) != NULL; - i++) { - int ret = 0; + for_each_compatible_node(np, type, compatible) { + int ret; unsigned int j; const void *prop; struct resource res[2]; @@ -1302,13 +1298,17 @@ int __init fsl_spi_init(struct spi_board_info *board_infos, memset(res, 0, sizeof(res)); - pdata.sysclk = *sysclk; + pdata.sysclk = sysclk; prop = of_get_property(np, "reg", NULL); if (!prop) goto err; pdata.bus_num = *(u32 *)prop; + prop = of_get_property(np, "cell-index", NULL); + if (prop) + i = *(u32 *)prop; + prop = of_get_property(np, "mode", NULL); if (prop && !strcmp(prop, "cpu-qe")) pdata.qe_mode = 1; @@ -1319,7 +1319,7 @@ int __init fsl_spi_init(struct spi_board_info *board_infos, } if (!pdata.max_chipselect) - goto err; + continue; ret = of_address_to_resource(np, 0, &res[0]); if (ret) @@ -1346,13 +1346,58 @@ int __init fsl_spi_init(struct spi_board_info *board_infos, if (ret) goto unreg; - continue; + goto next; unreg: platform_device_del(pdev); err: - continue; + pr_err("%s: registration failed\n", np->full_name); +next: + i++; } + return i; +} + +int __init fsl_spi_init(struct spi_board_info *board_infos, + unsigned int num_board_infos, + void (*activate_cs)(u8 cs, u8 polarity), + void (*deactivate_cs)(u8 cs, u8 polarity)) +{ + u32 sysclk = -1; + int ret; + +#ifdef CONFIG_QUICC_ENGINE + /* SPI controller is either clocked from QE or SoC clock */ + sysclk = get_brgfreq(); +#endif + if (sysclk == -1) { + struct device_node *np; + const u32 *freq; + int size; + + np = of_find_node_by_type(NULL, "soc"); + if (!np) + return -ENODEV; + + freq = of_get_property(np, "clock-frequency", &size); + if (!freq || size != sizeof(*freq) || *freq == 0) { + freq = of_get_property(np, "bus-frequency", &size); + if (!freq || size != sizeof(*freq) || *freq == 0) { + of_node_put(np); + return -ENODEV; + } + } + + sysclk = *freq; + of_node_put(np); + } + + ret = of_fsl_spi_probe(NULL, "fsl,spi", sysclk, board_infos, + num_board_infos, activate_cs, deactivate_cs); + if (!ret) + of_fsl_spi_probe("spi", "fsl_spi", sysclk, board_infos, + num_board_infos, activate_cs, deactivate_cs); + return spi_register_board_info(board_infos, num_board_infos); } diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c index 4c016da6842..d7f6a70e78d 100644 --- a/arch/powerpc/sysdev/ipic.c +++ b/arch/powerpc/sysdev/ipic.c @@ -497,6 +497,12 @@ static struct ipic_info ipic_info[] = { .force = IPIC_SIFCR_L, .bit = 27, }, + [94] = { + .mask = IPIC_SIMSR_L, + .prio = 0, + .force = IPIC_SIFCR_L, + .bit = 30, + }, }; static inline u32 ipic_read(volatile u32 __iomem *base, unsigned int reg) diff --git a/arch/powerpc/sysdev/micropatch.c b/arch/powerpc/sysdev/micropatch.c index 712b10a55f8..d8d60284075 100644 --- a/arch/powerpc/sysdev/micropatch.c +++ b/arch/powerpc/sysdev/micropatch.c @@ -16,7 +16,7 @@ #include <asm/page.h> #include <asm/pgtable.h> #include <asm/8xx_immap.h> -#include <asm/commproc.h> +#include <asm/cpm1.h> /* * I2C/SPI relocation patch arrays. diff --git a/arch/powerpc/sysdev/mpc8xx_pic.c b/arch/powerpc/sysdev/mpc8xx_pic.c index 7aa4ff5f5ec..0e74a4bd982 100644 --- a/arch/powerpc/sysdev/mpc8xx_pic.c +++ b/arch/powerpc/sysdev/mpc8xx_pic.c @@ -10,7 +10,6 @@ #include <asm/irq.h> #include <asm/io.h> #include <asm/8xx_immap.h> -#include <asm/mpc8xx.h> #include "mpc8xx_pic.h" diff --git a/arch/powerpc/sysdev/qe_lib/qe.c b/arch/powerpc/sysdev/qe_lib/qe.c index 3925eae9b0f..5ef844da935 100644 --- a/arch/powerpc/sysdev/qe_lib/qe.c +++ b/arch/powerpc/sysdev/qe_lib/qe.c @@ -65,17 +65,22 @@ static phys_addr_t qebase = -1; phys_addr_t get_qe_base(void) { struct device_node *qe; + unsigned int size; + const void *prop; if (qebase != -1) return qebase; - qe = of_find_node_by_type(NULL, "qe"); - if (qe) { - unsigned int size; - const void *prop = of_get_property(qe, "reg", &size); - qebase = of_translate_address(qe, prop); - of_node_put(qe); - }; + qe = of_find_compatible_node(NULL, NULL, "fsl,qe"); + if (!qe) { + qe = of_find_node_by_type(NULL, "qe"); + if (!qe) + return qebase; + } + + prop = of_get_property(qe, "reg", &size); + qebase = of_translate_address(qe, prop); + of_node_put(qe); return qebase; } @@ -153,16 +158,26 @@ static unsigned int brg_clk = 0; unsigned int get_brg_clk(void) { struct device_node *qe; + unsigned int size; + const u32 *prop; + if (brg_clk) return brg_clk; - qe = of_find_node_by_type(NULL, "qe"); - if (qe) { - unsigned int size; - const u32 *prop = of_get_property(qe, "brg-frequency", &size); - brg_clk = *prop; - of_node_put(qe); - }; + qe = of_find_compatible_node(NULL, NULL, "fsl,qe"); + if (!qe) { + qe = of_find_node_by_type(NULL, "qe"); + if (!qe) + return brg_clk; + } + + prop = of_get_property(qe, "brg-frequency", &size); + if (!prop || size != sizeof(*prop)) + return brg_clk; + + brg_clk = *prop; + of_node_put(qe); + return brg_clk; } @@ -322,7 +337,7 @@ static rh_info_t qe_muram_info; static void qe_muram_init(void) { struct device_node *np; - u32 address; + const u32 *address; u64 size; unsigned int flags; @@ -335,11 +350,21 @@ static void qe_muram_init(void) /* XXX: This is a subset of the available muram. It * varies with the processor and the microcode patches activated. */ - if ((np = of_find_node_by_name(NULL, "data-only")) != NULL) { - address = *of_get_address(np, 0, &size, &flags); - of_node_put(np); - rh_attach_region(&qe_muram_info, address, (int) size); + np = of_find_compatible_node(NULL, NULL, "fsl,qe-muram-data"); + if (!np) { + np = of_find_node_by_name(NULL, "data-only"); + if (!np) { + WARN_ON(1); + return; + } } + + address = of_get_address(np, 0, &size, &flags); + WARN_ON(!address); + + of_node_put(np); + if (address) + rh_attach_region(&qe_muram_info, *address, (int)size); } /* This function returns an index into the MURAM area. |