Part Number: DM388
Tool/software: Linux
Hello All,
I add ti_tools/ipnc_psp_arago/kernel/arch/arm/mach-omap2/omap_hwmod_81xx_data.c
i add the structure in ti81xx_hwmod_ocp_ifs_dm38x , dm814x_hwmod_ocp_ifs
static struct omap_hwmod dm81xx_i2c3_hwmod = {
.name = "i2c3",
.clkdm_name = "alwon_l3s_clkdm",
.main_clk = "i2c3_fck",
.prcm = {
.omap4 = {
.clkctrl_offs = DM81XX_CM_ALWON_I2C_0_CLKCTRL,
.modulemode = MODULEMODE_SWCTRL,
},
},
.class = &i2c_class,
};
static struct omap_hwmod_ocp_if dm81xx_l4_ls__i2c3 = {
.master = &dm81xx_l4_ls_hwmod,
.slave = &dm81xx_i2c3_hwmod,
.clk = "sysclk6_ck",
.user = OCP_USER_MPU,
};
An also i add ti_tools/ipnc_psp_arago/kernel/drivers/clk/ti/clk-814x.c
DT_CLK(NULL, "i2c3_fck", "i2c3_fck"),
Log:
[ 0.382004] omap_i2c 48028000.i2c: bus 0 rev0.11 at 400 kHz
[ 0.388613] omap_i2c 4802a000.i2c: bus 1 rev0.11 at 100 kHz
[ 0.395084] omap_i2c 4819c000.i2c: bus 2 rev0.11 at 400 kHz
Its crash on
Welcome to Arago 2016.05!
[ 1.861454] systemd[1]: Set hostname to <ti81xx>.
[ 2.047787] Unhandled fault: external abort on non-linefetch (0x1028) at 0xf902a02c
[ 2.055498] pgd = c0004000
[ 2.058218] [f902a02c] *pgd=48011452(bad)
[ 2.062265] Internal error: : 1028 [#1] ARM
[ 2.066465] Modules linked in:
[ 2.069545] CPU: 0 PID: 9 Comm: kworker/0:1 Not tainted 4.4.12 #7
[ 2.075664] Hardware name: Generic TI81xx (Flattened Device Tree)
[ 2.081800] Workqueue: pm pm_runtime_work
[ 2.085834] task: c493e000 ti: c4940000 task.ti: c4940000
[ 2.091266] PC is at omap_i2c_runtime_suspend+0x24/0x9c
[ 2.096514] LR is at 0xf902a02c
[ 2.099671] pc : [<c033828c>] lr : [<f902a02c>] psr: a00e0013
[ 2.099671] sp : c4941e38 ip : c0507578 fp : c4941e4c
[ 2.111199] r10: c06d9ac0 r9 : 00000008 r8 : 00000000
[ 2.116446] r7 : c06d9ac0 r6 : 0000000a r5 : c00202a4 r4 : c4919210
[ 2.123002] r3 : c49a2410 r2 : f902a000 r1 : 00000000 r0 : c4919210
[ 2.129560] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel
[ 2.136902] Control: 10c5387d Table: 8257c019 DAC: 00000055
[ 2.142673] Process kworker/0:1 (pid: 9, stack limit = 0xc4940208)
[ 2.148880] Stack: (0xc4941e38 to 0xc4942000)
When we make "status=disabled" for i2c1 and i2c2
Now i can access i2c3 and i2c4
[ 0.328938] omap_i2c 4819c000.i2c: bus 2 rev0.11 at 400 kHz
[ 0.335587] omap_i2c 4819e000.i2c: bus 3 rev0.11 at 400 kHz
Is there any restriction to use all 4 i2c controller in A8 side?
Regards,
RAJ M
